How Fast Does Aerobic Bateria Break Down Septic Tank? (Solution found)

  • Once the tablet reaches the septic system according to the company that manufactures the tablets in the US they: reduce, then eliminate noxious odors (the smell) extremely fast – in just three to five days! break down and eliminate all organic sludge from septic tanks, including natural oils, grease and organic hydrocarbons.

How long does it take for bacteria to work in septic tank?

If the temperature and conditions are favorable, then the bacteria will multiply to the maximum level that the environment will allow in about 2-4 days. Since septic systems vary, the speed at which the bacteria and enzymes break down waste varies.

How long do aerobic septic systems last?

Longevity. On average, a properly installed and well-maintained septic tank can last up to 40 years. Regular septic tank cleaning and inspection will keep your aerobic system functional for many years.

How often should you add bacteria to septic tank?

When solids enter the tank, they settle to the bottom and collect there. Over time, those solids will start to build up. This is why the tank needs pumping every three to five years — because the solids in the tank always rise to the top.

Does adding bacteria to septic tanks work?

Much research has shown that they do not make a positive difference: A good deal of research that has been conducted has shown that adding bacteria to a septic system has no positive overall effect. Some of this research has even found that additives may be harmful to septic tank systems.

What can break down poop in septic tank?

Yeast helps actively breaks down waste solids when added to your septic system. Flush ½ cup of dry baking yeast down the toilet, the first time. Add ¼ cup of instant yeast every 4 months, after the initial addition.

Is septic tank aerobic or anaerobic?

Wastewater treatment can be divided into anaerobic systems (septic tanks, anaerobic ponds and anaerobic digesters), aerobic systems with attached growth (typically trickling filters) and aerobic suspended growth systems (typically activated sludge).

How often should I pump my aerobic septic?

How Often Should My Aerobic System Be Pumped? There are many variables that affect how often your system needs to be pumped. This is determined by the usage of your system, and the number of people living in your home, we suggest that your system be pumped every three to five years.

What is the cost of an aerobic septic system?

An aerobic septic system has an average cost between $10,000 and $20,000. You need to have the system professionally inspected and pumped every one to three years, which has an average cost of $200. Aerobic systems may need motor & timer replacements from time to time.

How often should septic aerator run?

1 Answer. The aerator should run 24/7 nonstop and should not cost more than 10 dollars a month to run. If you electric bill is high something else is causing it or the system is not correctly hooked up.

How can I speed up my septic system?

How to Keep Your Septic System Healthy

  1. How the Septic System Works.
  2. Don’t Overload the Septic Tank and Drain field.
  3. Use an Efficient Toilet.
  4. Don’t Treat the Toilet as a Garbage Disposal.
  5. Don’t Pour Grease Down the Drain.
  6. Divert Rain Water From the Septic Drain Field.
  7. Keep Trees Away from the Septic System.

What is the best bacteria to put in septic tank?

Much like your stomach, septic tanks need good bacteria and enzymes to break down the solids that pass through it. These beneficial bacteria and enzymes can come from several sources, but our favorite is actually rotten tomatoes. These naturally occurring enzymes are proteins called Pectinase or Pectinolytic enzymes.

How do you restore the bacteria in a septic tank?

Flush a packet of brewer’s dry yeast down one toilet on the bottom floor of your house once a month. The yeast will help add “good” bacteria to your septic tank and break down waste.

Should I add enzymes to my septic tank?

Your septic system is unique in the way it processes your waste. If this information is not enough to convince you that enzymes and additives are bad for your septic tank, they can also cause complete septic system failure by allowing sludge and grease to pass to the soil treatment area, also known as the leach field.

What kills bacteria in septic tanks?

For example, while chlorine bleach is a useful disinfectant in the home, it kills beneficial septic tank bacteria. In addition to bleach, avoid constant use of antibacterial soap and harsh drain cleaners. Also, many toilet bowl cleaners have bleach or hydrochloric acid, which kills septic tank bacteria.

How do you dissolve sludge in a septic tank?

How to Reduce Sludge in a Septic Tank Without Pumping

  1. Install an aeration system with diffused air in your septic tank.
  2. Break up any compacted sludge.
  3. Add a bio-activator or microbe blend.
  4. Maintain the aeration system.
  5. Add additional Microbes as required.

Which Bacteria are in Your Septic System? – Septic Maxx

In your septic tank, there are several bacteria that help it to operate efficiently. It is possible that after understanding how your septic tank works, you would be inquisitive about the kind of microbes that dwell in it. Hundreds of billions of natural bacteria thrive in the confines of your septic system. These bacteria break down and breakdown the solid waste that accumulates in your tank. Aerobic bacteria and anaerobic bacteria are the two types of bacteria that might be found in your septic system.

Aerobic Bacteria

For aerobic bacteria to live, oxygen is required. There are three tanks in an aerobic septic system, which is more sophisticated than an anaerobic system. These tanks are:

  • Waste is introduced into the first tank, where it settles into layers. Trash is introduced into the treatment tank
  • An aerator circulates oxygen bubbles through the waste
  • And the treatment tank is closed. The waste is consumed by aerobic microorganisms. Wastewater is sent to a pump tank, where it is treated a second time.

Because aerobic bacteria require oxygen to exist, it is necessary to have more than one tank to guarantee that the bacteria remain alive and healthy. The breakdown of organic waste and the utilization of organic waste as a food source are both more efficient with aerobic bacteria than with anaerobic bacteria. In addition, because they are more sensitive to environmental changes, the need for several tanks is a must.

Anaerobic Bacteria

Anaerobic bacteria do not require oxygen to survive and function in situations where there is little or no oxygen, as the name suggests. Their resilience is greater despite the fact that they are smaller and less effective in decomposing organic waste. An anaerobic septic system is comprised of a single tank connected to a series of smaller pipes that run beneath the surface of your lawn:

  • Solid waste collects in the septic tank
  • It is disposed of properly. Solid waste is consumed by anaerobic microorganisms. Liquid waste rises to the surface of the septic tank’s water column. In the smaller pipe, the wastewater from the tank is channeled. The wastewater seeps into the soil and filters out.

Because an anaerobic septic system does not require oxygen to function, it is a more affordable option than an aerobic system. When critical bacteria in your septic tank is destroyed as a result of using substandard septic tank additives, it can cause damage to your system. Septic Maxx employs natural ingredients that work in conjunction with microorganisms to keep your septic system running smoothly, whether it is aerobic or anaerobic in nature.

The role of enzymes and bacteria in a septic tank

Wastewater from residences is disposed of into a septic tank for treatment in areas where municipal sewer lines are not readily available or are inaccessible. The presence of microorganisms, particularly bacteria, in the septic tank helps to break down and liquefy organic waste. The treatment of wastewater in most septic systems is divided into two primary steps. When wastewater is fed into the septic system, the solids fall to the bottom of the system, where they combine with the anaerobic bacteria to produce the sludge and scum layers.

After passing through the second phase, the effluent is discharged into the drainfield region, where it is further treated by physical and biological processes as it percolates through the soil.

What are enzymes?

Bacterial enzymes are a class of proteins that are released into the environment. Enzymes are quite selective in terms of the types of organic materials that they degrade. Enzymes, in contrast to bacteria, are not living organisms. They are incapable of growing or reproducing. Enzymes are often produced by bacteria and serve as catalysts for anaerobic digestion, which occurs in the absence of oxygen. Enzymes may be thought of as blades that cut through complicated molecules and break them down into smaller fragments that are more digestible for bacteria to consume.

By increasing the rate at which bacteria decompose organic waste in the septic tank, enzymes play a critical role in the treatment process.

Types of enzymes found in septic systems

Following are some of the most essential enzymes in sewage treatment systems. Protease is a digestive enzyme that breaks down protein-based waste such as blood and feces. Lipase is a digestive enzyme that breaks down fats, greases, and oils. Amylase is a digestive enzyme that breaks down carbohydrates such as porridge, rice, pasta, and so on. Cellulase is a digestive enzyme that breaks down cellulose, such as that found in paper-based goods. Urease is a digestive enzyme that breaks down urea.

The majority of these enzymes are generated by bacteria in their natural environment.

Organic matter and enzymes such as amylase, protease, cellulases, and lipases are introduced into the septic tank by Bio-maintenance Sol’s products in order to break down the organic waste and aid in the digestion process in the tank.

What are bacteria?

When it comes to bacteria, they are the most prevalent and significant germs in a septic system. Fungi, protozoa, rotifers, and nematodes are some of the other microorganisms that exist. Despite the fact that bacteria are microbes, which means that they are exceedingly little, they are still living entities, and as such, they require some type of nutrition to survive. They get their nutrition from organic stuff. Approximately 1/25,000 of an inch in length is the length of a bacterium. They may grow in large numbers in a little amount of area due to their minuscule sizes.

  1. Bacteria that require oxygen are referred to as aerobic bacteria, whilst bacteria that do not require oxygen are referred to as anaerobic bacteria.
  2. This explains why several common home goods are not very beneficial to the septic tank’s performance.
  3. When the conditions are good, bacteria can multiply every 15-20 minutes if the right conditions are there.
  4. This frequently results in the reduction of the bacteria population, which is a phenomena that has been linked to the failure of numerous septic systems in the past.

Types of bacteria found in the septic tank

When it comes to septic systems, there are four basic kinds of bacteria to consider.

There are anaerobic, aerobic, facultative, and bacterium spores among these types of bacteria. Let’s take a closer look at each of these in turn.

Anaerobic bacteria

As the name implies, anaerobic bacteria flourish in conditions with little or no oxygen, which is why they can be found in typical septic systems. They generate energy by using chemicals like as nitrates and sulfates, which helps to slow their metabolic rate down. Despite the fact that they are smaller than aerobic bacteria, they are highly selective, and because of their lower metabolism, it is more difficult for them to create enzymes. These animals have exceptional resistance to environmental stress and can thus live even when their environment changes dramatically.

The advantage of adopting anaerobic bacteria is that you will not be required to have any electromechanical equipment in your system.

Facultative bacteria

Facultative bacteria are capable of flourishing in both the presence and absence of air. When there is enough oxygen available, they can survive by aerobic respiration. When there is no oxygen available, these bacteria convert to fermentation. As a result, facultative bacteria may be described as having the potential to change into either aerobic or anaerobic conditions depending on the conditions in the environment they are exposed to. In most cases, this transition takes a few of hours to complete.

Aerobic bacteria

Bacteria such as this require the presence of oxygen in order to thrive. Aerobic bacteria are extremely effective at feeding on organic waste, and as a result, they may be employed to break down trash in high-tech waste-treatment systems. Aerobic bacteria, on the other hand, are extremely sensitive to changes in their surrounding environment. Aspects of their size are likewise greater than those of anaerobic bacteria in most cases. Aerobes have a substantially greater metabolic rate than anaerobes, and this difference is considerable.

Bacteria spores

Bacteria endospores are a dormant structure that is created by stressed bacteria cells and is used as a protective barrier. They create a protective shell around the cell, which shields it from the impacts of the environment. Endospores can, as a result, endure circumstances that would readily kill any other bacteria, such as high temperatures. These materials can survive extreme pressure, ultraviolet radiation, chemical degradation and other conditions. However, despite the fact that this makes it easier for them to live in the septic tank, they are not particularly effective when it comes to the digestion of organic waste.

  • A pathogen is a microbe that is responsible for the transmission of illness.
  • The bacteria in the septic tank are responsible for the breakdown of organic waste in the septic system.
  • An inadequately functioning system may not be able to effectively remove harmful microorganisms, resulting in groundwater pollution.
  • Diseases transmitted by drinking water are caused by harmful bacteria, which are found in abundance.

Septic system owners must consequently examine their systems on a regular basis to verify that they are operating in the manner intended by the manufacturer. Shock therapy should be used promptly if you have a clogged drain field in order to restore it to its normal operating state.

The sludge layer

Heavy materials in wastewater from your home sink to the bottom of your tank, forming a layer known as sludge. When wastewater from your home enters your septic system, it forms a layer known as the sludge layer. Anaerobic bacteria aid in the partial breakdown of the sludge by oxidizing the organic matter. Sludge layers are often composed of mixed biodegradable and nonbiodegradable substances, making it impossible for the bacteria to completely decompose the layer. As a result, septic tanks must be drained on a regular basis, according to the requirements of your provincial legislation.

Applying probiotics to septic systems

At some point, every septic system will fail. Not if, but when will this happen is the real question. The harmful compounds utilized in houses, which ultimately make their way into septic tanks, might be held responsible for this impending breakdown of the system. Despite the fact that there are billions of naturally existing bacteria in the septic tank, these bacteria require a pH level of about 7. The harmful compounds that come from residences interact with the pH levels of the septic tank, resulting in the death of a large number of bacteria in the tank.

See also:  How To Remove Packed Off Septic Tank? (TOP 5 Tips)

It has been suggested that using probiotics to septic systems may be one method of addressing this issue.


Even though there are thousands of different septic tank additives available on the market today, they are not all created equal. Some of them, in fact, will cause more harm than benefit to the septic tank’s environment. Some investigations have revealed that chemical additions can really cause the collapse of a septic system as well as the pollution of groundwater. For this reason, only biological additions such as those provided by Bio-Sol should be used in your recipes. They are created from bacteria and enzymes that have been meticulously chosen, and they inject billions of bacteria into the sewage treatment system as a result of their use.

It is a good idea to add biological additives to your septic tank on a regular basis to ensure that it is operating as effectively as possible.

Septic Tank Bacteria: What You Need to Know

In the case of a new septic tank owner, or if you’re just not familiar with the way your septic tank operates, you may not be aware of the importance of bacteria and how it affects your septic tank’s operation. Bacteria contributes to the proper operation of your septic tank over time. Your septic tank would most certainly jam up very fast if there were no microorganisms present. By following proper septic tank management procedures, you may encourage the growth of beneficial bacteria. The way you utilize your septic tank, as well as the items you flush down your drains, can have an influence on how well it functions.

Why Is Septic Tank Bacteria Important?

Solid waste is continuously drained down the drain to the septic tank. Whenever solids are introduced into the tank, they sink to the bottom and accumulate there. Over time, such sediments will begin to accumulate in the sewer system. In order to prevent this, the tank must be pumped every three to five years since the solids in the tank always ascend to the top of the tank. If the solids reach the drainfield pipe, which is located towards the top of the septic tank, microscopic particles will be released into the drainage system.

Bacteria reduces the amount of bacteria that accumulates at the bottom of the tank.

Beneficial bacteria floats about in your septic system, breaking down solid waste and converting it to liquid waste. Whenever the liquids in the tank reach the drainfield, they are securely discharged into the yard and do not become clogged.

What Can You Do to Promote Septic Tank Bacteria Growth?

Septic tanks inherently contain bacteria that will develop and multiply. By draining more solid waste down into the tank on a consistent basis, you encourage the growth of bacteria. However, there are several things you can do to your septic tank that will help to slow the spread of germs. All of the items meant to kill bacteria such as antibacterial soaps, bleach, antibiotics, and other products designed to kill bacteria have the potential to enter your tank and harm some of the beneficial bacteria in your tank.

It is possible that you may need to alter the way your family operates in order to prevent flushing these items down the toilet.

Before washing soiled garments, soak them in vinegar for a few minutes, and mix baking soda into your laundry detergent before putting it in the machine.

If you require a secure location to dispose of your medication, consult with your doctor to determine where you may properly dispose of your medication waste.

Do You Need to Put Bacteria In Your Septic Tank?

Some firms manufacture bacteria that may be added to your septic tank in order to support good functioning of the system. However, if you follow the instructions to the letter, microbial additives should not be required. Assuming you keep the amount of bacteria-killing agents and chemicals in your drains to a minimum, your tank should have enough bacteria to perform its functions. Whether or not you decide to employ septic tank bacteria, you should check with your local sanitation authorities to see if any chemicals or other materials are prohibited from being flushed down the toilet.

If you’re not sure which septic tank bacteria firms are the best, ask the specialist who pumps your septic tank for a suggestion.

Al’s Septic Tank Service is delighted to speak with you about septic tank bacteria and other septic tank-related issues.

To learn more, please contact us immediately.

Understanding Your Septic Tank’s Bacteria and Enzymes

Your septic tank is home to an entire ecosystem of living creatures that assist it in performing its essential functions. As living things, the bacteria in your tank may require a little assistance from time to time in order to carry out their functions. If you understand how things should occur in your septic tank, you will be more equipped to recognize when the bacteria in your tank are causing problems. What Bacteria and Enzymes Do to Assist in the Function of Your Septic Tank The presence of large colonies of bacteria and enzymes in your septic tank prevents the tank from backing up or becoming overfilled.

  • Under optimal conditions, the bacteria and enzymes in your tank will seldom require assistance in carrying out their functions.
  • In addition to eating the garbage, microorganisms are responsible for converting vast amounts of it into liquids and gases.
  • The Things That You Can Do to Affect the Septic Tank’s pH Balance These live colonies are responsible for keeping your septic tank in balance, but they are also vulnerable to a variety of factors that might weaken them or reduce their efficacy.
  • People, on the other hand, have the ability to quickly disturb that equilibrium in a variety of ways.
  • Solid waste can only be consumed by the bacteria in your tank at a certain rate.
  • Instead than memorizing all of the items that should not be flushed down the toilet, focus on learning what is safe for your plumbing and septic system.
  • Anything else should be avoided.

The number and types of sediments that you drain or flush should be limited, to name a few considerations.

Putting things down the drain that will destroy bacteria is not a good idea.

If the bacteria in the tank die, there will be nothing left in the tank to break down waste.

It is common for germs to be destroyed when poisonous goods or powerful cleansers are used and allowed to enter your drains.

You can use your cleaning supplies, but you should use caution when doing so.

Medicines can potentially have negative interactions with the bacteria and enzymes in your tank, causing them to die.

What Contributes to the Health of Your Septic Tank Bacteria Even if you pay attention to what you do, the bacteria in your septic tank may require assistance from time to time.

A correctly provided additive can assist to strengthen microorganisms, aid in the removal of difficult substances, and promote the proliferation of these organisms.

Contacting a professional provider is the most effective approach to deal with any septic tank problem you may be encountering.

Septic tank inspection, cleaning, diagnosis, and repair are all things that Walters Environmental Services can do for you. If you have any problems or questions about your septic tank, please call us right away.

3 Tips to Keep Your Aerobic Septic System Strong

1. Keep your aerator in good condition. The advantages of an aerobic septic system are derived from the microorganisms that are utilized to break down waste. A typical system comprises anaerobic bacteria, which can live in the oxygen-depleted environment of a septic tank and treat the waste produced. Aerobic septic systems include aerobic bacteria, which are microorganisms that require a constant supply of oxygen in order to function properly. The aerator, which is a component of an aerobic septic system, is responsible for supplying this oxygen.

  1. If the aerator stops working, the bacteria will not be able to acquire enough oxygen to survive.
  2. Aerators die for a variety of reasons, the most prevalent of which are as follows: The first problem is caused by blocked air diffusers.
  3. Furthermore, the blockage causes a significant amount of pressure within the aerator itself.
  4. Insect infestations are the second most prevalent reason for a failed aerator, behind overheating.
  5. Eventually, when the nest has grown sufficiently, it will induce a short, which will render the aerator non-functional.
  6. Secondly, never use chlorinated pool waterAerobic septic systems are distinguished by the presence of a unique component known as the chlorinator, which disinfects waste water before it is discharged into your yard.
  7. On a semi-regular basis, it is necessary to replace the chlorine in the chlorinator with fresh chlorine.

These pills are quite similar to ones that are commonly seen in swimming pools.

Trichlorisocyanuric acid is included in the tablets used to treat swimming pools.

Swimming pool pills do not dissolve rapidly enough, nor do they have the chemical strength required to disinfect septic system waste water.


Two tanks are used in an aerobic septic system.

Aerobic bacteria break down solid waste into sludge in this environment.

The liquid is pumped from the pump tank to the chlorinator, where it is discharged onto your grass.

However, a system that is ill or poorly managed may not be able to break down liquid waste to the extent that it should.

Clarity testing may be performed by a specialist to assess how clean the water in your pump tank is and how well your system is functioning.

More information on having a clarity test conducted on your aerobic system may be obtained by contacting Walters Environmental Services, a leading septic service provider.

Types of Microorganisms That Help Your Septic System

The fact that your septic system requires an abundance of bacteria in order to function properly is probably not news to you. Some septic contractors also provide bacterial treatments for sewers and septic tanks, which they sell to customers. But you might not realize that bacteria are so beneficial to your system, or that protozoa, rotifers, and other microbes live and function in your septic system with you. Here are some of the most important microorganisms that aid in the cleaning and processing of wastewater by your septic system.

  1. When it comes to wastewater, certain bacteria (such as E.coli) are regarded potentially dangerous pollutants, while others might actually be useful to the process.
  2. aerobic bacteria grow in environments where they can receive plenty of oxygen, whereas anaerobic bacteria thrive in environments where they can acquire little or no oxygen.
  3. For this reason, leach fields (which contain aerobic bacteria) are quite significant.
  4. Solid trash may be decomposed by these bacteria, which consume it.
  5. Wastewater treatment systems, such as your septic system, can contain many species of protozoa, including ciliates, flagellates, and amoebas.
  6. They consume bacteria, which can aid in the prevention of bacterial overgrowth, the reduction of dangerous bacteria, and the clarification of wastewater.
  7. These are a sort of microbe that may survive in the effluent from your leach field.

Because they require oxygen to survive, they are less likely to thrive within the confines of the septic tank (similar to protozoa and aerobic bacteria).

Nematodes Nematodes are tiny worms that, while they can be dangerous in other contexts, they can be quite beneficial in a septic drainfield because of their ability to digest organic matter.

Nematodes, like rotifers, can aid in the breakdown of waste materials and the oxygenation of the leach field.

After all, a blocked drainfield is not the same as an overheated computer, so you might ask why it’s necessary to give it some time to rest.

Furthermore, while waste in the soil does not just disappear on its own, microbes such as nematodes continue to devour the waste over time, allowing obstructions in drainfields to be cleared.

Having the assistance of these bacteria is essential in order to maintain an effective septic system.

Keep in mind that while any of these microbes might be beneficial in the treatment of wastewater, they may also be hazardous in other situations.

If they manage to get through the septic system and into surface water, groundwater, or drinking water, they may become pollutants. Make an appointment with your septic contractor, Southern Sanitary Systems Inc, for regular septic maintenance to ensure that microbes stay where they belong.

Life in the Septic Tank

What factors can have an impact on septic tank biology?


When it comes to pumpers and other service providers who often visit the interior of working septic tanks, one issue that comes up frequently is: Why do I see such a broad variety of conditions? Moreover, what are the possible causes of septic tanks operating in an unsuitable manner? Preceding my discussion of issues that might negatively impact the operation of a septic tank, I’ll provide a quick overview of what a properly working septic tank should look like and what should be occurring within it in terms of treatment.


A well functioning septic tank will be divided into three different areas. There should be a sludge layer at the bottom, a clean zone in the middle, and a layer of floating scum on the surface. Effluent discharged from the clear zone should have BOD-5 concentrations of 150-175 mg/L, TSS concentrations of 40-60 mg/L (total suspended solids), and FOG concentrations of no more than 20 mg/L. (fats, oils and grease). A septic tank’s pH will typically range between 6 and 7.5, and for microbial activity to occur, the tank must be kept above 40 degrees Fahrenheit.

  • The tank’s quiet zone is created by providing a settling zone for the gross solids (sludge).
  • When bacteria decompose waste in a septic tank, the process is anaerobic, which means it takes place in the absence of dissolved oxygen (1 mg/L).
  • Aerobic bacteria are the most common.
  • Organisms that can function in either the presence or absence of oxygen are referred to as facultative organisms.
  • Aerobic bacteria are more effective at decomposing and exploiting organic waste as a food source than anaerobic bacteria are.
  • The changes in the environment have a greater impact on them.
  • They are smaller and less effective in decomposing trash than aerobic bacteria, but they are stronger and can resist greater changes in the environment.


What might lead a tank to be “upset” and to fail to show the three separate layers is not entirely understood. As with any troubleshooting procedure, we must consider the water-use habits of the household, as well as the usage of high-water-consumption devices that prevent settling and separation from occurring in the first place. For example, washing many loads of clothes or dishes in succession can be as simple as doing so. This has the potential to both hydraulically overflow the tank and — in the case of dishwashers – add a significant amount of organic waste.

  1. Septic tank contents can be stirred up by hydraulic surges in either situation.
  2. Another issue that is comparable to this one occurs when large-volume whirlpool baths are used.
  3. Because of this, the water entering the septic tank is under greater pressure, resulting in turbulent flow within the tank.
  4. Once it has been verified that there is no problem with the flow or water usage, it is necessary to investigate the chemical items being utilized.

In other words, gas is being released around the sludge, making it buoyant and allowing it to float or be suspended. Prior to the installation of effluent screens, these sediments were frequently conveyed to the soil treatment area before anybody became aware of a problem.


Cleaning agents might have cumulative effects in the tank if they are used excessively or on a frequent basis. Antibacterial characteristics are now prominently advertised by the majority of cleansers. They also have no way of distinguishing between bacteria destroyed on the sink, toilet, or countertop and germs existing in the septic tank if they happen to be antimicrobial. The widespread use of antibacterial liquid hand soaps can also be a source of concern, as they can slow down the already sluggish anaerobic digestion process, resulting in increased sludge and scum formation and the need for more frequent maintenance.

  • These are mostly relevant to the cleaning of toilet bowls.
  • Homeowners should be reminded to read the labels of any cleaners that are eventually flushed down the toilet.
  • If a product’s label contains the word “warning,” it signifies that only restricted usage of the product should have a negative impact.
  • Toxic drain cleaners that are used to clear clogs and blockages from plumbing systems are often classified as hazardous.
  • It is possible that this may result in increased FOG quantities, which, if passed on to the soil treatment area, will promote the growth of biomat, limiting the soil’s ability to receive water.
  • Another area of concern is the use of prescription medications.
  • Additional tank maintenance may be required in order to resolve this issue.
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What is an Aerobic Septic System?

It is also referred to as anaerobic treatment system (ATS), and it is a minor wastewater treatment approach that employs an aerobic way to digest sewages. Anaerobic septic systems function in the same way as aerobic septic systems, with the exception that the aerobic septic system employs an aerobic technique rather than an anaerobic procedure. These systems are especially frequent in rural locations where municipal sewers are not readily available. This means that they may be used for either a single-family home or a small group of dwellings.

This allows you greater freedom in determining the placement of the leach site and reduces the size of the leach site to half its original size.

The additional oxygen boosts the natural bacterial activity in the system, allowing for even more nutrient digestion in the sewage as a result.

Residences with poor soil conditions and narrow parts, places with a very high water table, and houses near surface water are all candidates for this system, which has the benefit of being less susceptible to pollution from nutrients contained in sewage.

The maintenance of your aerobic treatment unit (ATU) will be required for the duration of your working life. You may also be interested in reading: Septic Tank Repair and Cleaning Prices in 2021

How does an Aerobic Septic System work?

An aerobic treatment system is a sewage treatment system that employs mechanical components to treat sewage and release the treated sewage into an absorption region after treatment. It makes use of aerobic microorganisms, which require a constant supply of fresh air to live. Organic waste that passes through the septic system is processed by these aerobic bacteria, which are so termed because they utilise oxygen (the “aero” part of the word “aerobic”). Without organic materials and oxygen, these bacteria are unable to reproduce and carry out their therapy functions.

A puddle or some mud is where bacteria can be found living in the aerobic septic system.

Bacteria consume sewage products, breathe the air, and excrete CO2 as waste products into the environment.


  • Prior to treatment, the septic tank is put in front of the ATU (Aerobic Treatment Unit), or the ATI-J can incorporate a septic or waste tank as part of its equipment. As part of the pre-treatment process, the sediments are separated from the sewage water. Blower or air compressor pumps the air into the wastewater in the aeration chamber during this stage. Aeration Chamber: As a result of this process, the development of aerobic bacteria, which aid in the digestion of solids in the effluent, is stimulated. Disinfection: This stage includes an additional treatment step for wastewater that has exited the aerobic treatment unit (ATI-J) or the ATI. You can use UV light or chlorine to complete this process. Before the wastewater is discharged into the pump tank, it is further treated with ultraviolet radiation, bleach, chlorine, or other disinfection methods. Finally, ATI-J wastewater is released into a drainage region, which may be an evapotranspiration bed, an absorption area, or a sand filter.

Watch the following video to get a better knowledge of the subject:

What is a Conventional Septic Tank System?

A traditional septic tank system is a straightforward mechanism for the treatment of home waste. When it comes to typical septic tank systems, they consist of a holding tank, drainage ditches, and/or an underground sewage infiltration system (drain field). In most cases, this conventional system is installed in a single-family residence or a small commercial setting. There has been a stone/gravel drain field design in use for quite some time. The drainage area’s structure is referred to as the “drainage area” in this design.

  • The drain field is a system that directs sewage from septic tanks into underground ditches built of flat gravel or stone. After that, cover the top of the trench with a geo-fabric material to keep dust, sand, and other debris away from the clean stone. After passing through the stone or gravel trench, the wastewater is cleaned by microorganisms that colonize the soil under the stone or gravel trench. The overall area covered by the stone or gravel system is considerable, and it may not be ideal for all places and living situations under all circumstances.

Components of an Aerobic Treatment System

Generally speaking, an aerobic septic system is comprised of the following components: an absorption field, a disinfection chamber, an aerobic treatment unit, a pump tank, and a garbage tank. The following are the specifics of each of these components:

1) Trash Tank

In a normal septic system, a garbage tank has a mechanism that is quite similar to that of the regular septic tank. When the sewage is collected in the garbage tank, it is divided into three separate layers:

  1. The scum layer is on top, followed by the central liquid sewage layer and the lower mud layer.

An aerobic treatment unit is reached after the wastewater has passed through a T-shaped barricade. Also see: How Does a Trash Pump Work?

2) Aerobic Treatment Unit(ATU)

It is a component of an aerobic treatment system that treats wastewater by utilizing aerobic bacteria as a treatment agent. The pumped air creates an oxygen-rich environment in which aerobic bacteria may flourish and break down germs that are harmful to human health in the wastewater. Electricity and mechanical components are required for the pumped air to work properly.

3) Disinfection Chamber

This chamber receives the wastewater from the aerobic treatment unit and treats it with disinfectant.

Additional disinfection methods such as ultraviolet light, bleach, chlorine, or other disinfectants are used to clean wastewater before it is discharged into the pump tank.

4) Pump Tank

Thepump tank is often equipped with a set of floats that govern when the wastewater must be drained from the tank. The installation of an alarm will ring when the sewage level increases, alerting you that repair is necessary. In most drainage locations, the wastewater is dispersed by use of a nozzle to ensure even distribution. Because the wastewater has been treated several times, it may be emptied safely. In addition, see: How to Pump a Septic Tank?

Why do you need an Aerobic Septic System?

There are a number of reasons why you should install an aerobic septic system on your property, including the following:

1) It requires small space

The size of a septic tank is determined by the number of people that reside in a house or building. Therefore, many septic tanks require a significant amount of area for installation, which presents a significant challenge for homes or properties with limited space. The aerobic septic system, on the other hand, is an excellent alternative for residences with limited space due to the fact that it takes less room.

2) Offer higher levels of treatment

Aerobic treatment systems guarantee that wastewater is cleaner and that the danger of groundwater contamination is reduced. If your property is located in a floodplain with a high water table, it is advised that you install an aerobic treatment unit to prevent water pollution from occurring.

3) Environmentally friendly

Because of the outstanding performance of an aerobic septic unit, wastewater used for cleaning or bathing may be readily recovered and utilized to provide water for the grass and garden. The water circulates through the system, where it is treated before being recycled. It is recommended that you use aerobic sewage treatment for your system if you wish to be ecologically conscious.

4) Reduces household waste faster

Excellent aerobic septic systems may break down solid sewages far more quickly than a comparable conventional septic system when compared to the latter. As a result, sewage does not build up to an alarmingly high level. In order to maintain its efficiency, this septic tank system does not require regular pumping.

5) Appropriate for all types of land

The aerobic septic unit’s most significant benefit is that it may be used on any type of terrain without compromising performance. While traditional septic tank systems can be used on locations with high groundwater levels, they are not recommended. It is important to note that an aerobic treatment system has been carefully designed to operate properly and be compatible with various soil types.

6) Save your money

This system processes the majority of the sewage that is stored in the water tank. As a result, the drainage system does not require as many maintenance visits. You will be able to save money in this manner.

Advantages and disadvantages of an Aerobic Septic System

Advantages Disadvantages
Consistently generates high-quality wastewater. Aerobic treatment system higher operating and maintenance costs.
It reduces nitrogen emission Cold weather can have adverse effects on the system. Therefore, it should be isolated.
This system also significantly decreases the blockageof the drainage field It needs more frequent pumping and maintenance.
Tested to extend the lifetime of the drain field It needs higher electricity for working
It uses for aquifers, open water sources, and contraction to property lines. Improper system maintenance can lead to contamination
It can install in soils and areas (areas with high water levels, etc.) where conventional septic systems could not reach. Aerobic septic system has high installation, maintenance, and operating costs compared to a conventional septic system.
This system can be used on poor soil types. Blower noise
It can use to troubleshoot problems in the septic tank system. If it is not properly discharged, there will be a slight smell
It requires minimum installation space and has a flexible design. It needs more monitoring and inspection compared to other systems.
An aerobic septic system can install on different types of soil. There is no option for maintenance
The treated effluent can be utilized for irrigation so that the water can be reused. It needs more power
It also uses for challenging parcels and limited land. Aerobic septic system has high initial installation expenses
Requires less maintenance.
Environmental friendly.

How to Maintain anAerobic septic system

The aerobic septic system is one of the most sophisticated and technologically advanced systems available for wastewater treatment. You can examine how it works and how it compares to standard septic tank systems in the sections that before this one. The following are the procedures that must be followed in order to keep an aerobic septic system in good working order.

1) How to access your Aerobic treatment system to make a proper check?

In most cases, system access ports are 10 feet or more above the ground. We recommend that you tighten the caps on your access ports. – You’ll have to replace them if they fracture or get discolored. With care, unscrew the lids and carefully open them: Carefully unscrew the lid to prevent the release of hydrogen sulfide gas, which is produced by the septic tank system.

If hydrogen sulfide gas is breathed, it can be fatal. As a result, before checking the tank, be certain that the gas has been completely emptied.

2) Most systems have warning lights to alert you to problems

In the event of a malfunction, you should have a system in place that generates a warning light. As soon as you see an alert light on your system, you should promptly investigate and correct the problem. Remember, it is always preferable to identify and resolve a minor problem than to ignore the system and let the problem to worsen, resulting in the device being damaged.

3) Add chlorine to your tank

Providing you know the dosage and frequency recommended in the instruction booklet that came with your aerobic septic unit, this step should be rather straightforward. Keep in mind that pool chlorine does not sanitize the sewage, so exercise caution while using it. However, it will kill all of your plants and grass. Remove the lids from the aerobic treatment system and replace them with the recommended amount of septic-friendly chlorine. Replace the lids in their original position and screw them back on.

4) Keep an eye on the spray fields

It is equally crucial to identify a minor problem before it develops into a major one in this case. Damaged or inadequately sprayed heads should be replaced as soon as possible with acceptable septic spray heads. Aerobic treatment systems cannot be used with irrigation spray heads since they are not designed for this purpose. As a result, it is not recommended that these sprinklers be utilized. If your sprinklers are constantly running and you notice a bad smell coming from your septic tank system or see puddles of water in your system, it is time to call a septic tank maintenance professional.

For those planning a renovation or an addition to their house, it is simple to locate missing or malfunctioning spray heads and make informed selections.

5) Keep a maintenance record

If you know the name of the model, the year of installation, the status of your license, and the capacity of your aerobic treatment unit, you can more easily identify the sort of system you have and the circumstances under which it is maintained. The ability to maintain track of which parts of your system have been fixed and when can aid you in keeping track of which tests and services are currently running on your system. Depending on factors such as how often chlorine should be added, the results of clarity tests and residual free chlorine tests, as well as the kind and date of repair, it may be determined exactly when the garbage tank should be removed and an aerobic treatment unit should be pumped.

See also:  Who Septic Tank Regulations? (TOP 5 Tips)

During this maintenance, the following items will be performed:

  1. Fill up a spreadsheet with the quantity of free chlorine residue found in wastewater from the pumping station. Measure the depth of the slurry in the garbage tank and make a note of it. ATU measures and records the amount of sludge present. Perform a clarity test and note the results (Pass or Fail)
  2. A

6) When to conduct a maintenance specialist for Aerobic septic system

In the event that you’re looking to test your DIY (do-it-yourself) abilities by maintaining youraerobic septic system, this is not the best spot to begin. A well functioningaerobic septic system can keep your family healthy while while allowing your house to run efficiently. Contacting a maintenance professional in an emergency situation is the most effective means of keeping an aerobic septic treatment system in good operating condition.

In addition, you should have an expert who cleans and inspects your system on a regular basis in accordance with the recommended maintenance schedule.

What is the cost of an aerobic septic system?

The following are the expenses associated with the various aerobic septic systems:

  • In the United States, utilizing traditional or gravity septic tank systems or employing drainage technologies to produce uniform distribution systems can cost anywhere between $25,000 and $30,000. Aeration Treatment systems, which are used to accomplish type 2, cost between $ 25,000 and $35,000 to purchase and install. The cost of installing an ATU in an underground drip irrigation line varies depending on the topography and ranges from $ 25,000 to $ 36,000
  • However, the cost of installing an ATU in an underground drip irrigation line is less expensive. When used in an Evo-transpiration bed, the cost of an ATU is between $25,000 and $41,000, depending on the family.

How to choose the right Aeration Septic System?

There are several aspects to consider while selecting an aeration septic system for your sewages. The following are some considerations to bear in mind:

  • Your goals for lowering maintenance costs
  • Tank size
  • Efficiency criteria
  • Plant location and surrounding environment
  • And Your maintenance costs
  • The amount of O2 required for the effluent
  • The total amount of wastewater produced
  • Capital expenditures and energy expenditures

FAQ Section

The anaerobic septic tank system is made up of two parts: a seepage field and a treatment tank (or treatment chamber). Solid debris and slag are deposited at the bottom of the treatment tank, with the wastewater settling in the middle. The wastewater is then pumped out through a pipe into a holding tank. The effluent is largely free of contaminants. As a result, it passes via a system of pipes that are concealed beneath the leach area. Several systems use a divider box between the pipe and the tank in order to provide more constant effluent delivery.

  • The aerator in the aerobic septic system continually feeds oxygen to the bacteria in the tank while the system is in operation.
  • A moving pallet, as previously indicated, helps to prevent the effluent from separating into three distinct levels as it passes through the system.
  • The wastewater from the leach site becomes cleaner and simpler to treat as a result of this mechanism.
  • Septic systems that are anaerobic in nature are less expensive than aerobic septic systems.
  • Although an aerobic septic system is beneficial to the environment, it is more expensive to acquire and operate than a standard septic system.

Can I put a aerobic septic tablet in my toilet tanks?

Putting an aerobic septic pill into your toilet tank is OK. Put the aerobic septic tablet into your tank and let it to do its work to clean your tank. This pill will not do any damage to your septic system.

Can a root killer be used in an aerobic septic system?

Root killers can be employed in an aerobic septic system, and the amount utilized depends on the situation. It is effective without causing any harm to the normal bacteria in your septic system.

See More
  1. What is the operation of a septic tank system? The best aquarium or fish pumps
  2. The most recent septic tank pumping costs
  3. And more.

Anaerobic Bacterial Action of a Septic Tank

In many areas where main sewers are not accessible, sewage is disposed of by pumping it into a two-chamber septic tank and letting it sit for a while. Naturally occurring microorganisms assist in the breakdown of the waste in the tank. The semi-purified water flows from the septic tank onto an aleach field, where the remaining contaminants are broken down by bacteria and exposure to the elements to produce potable water.

In this section, we will look at how the bacterial process works, the architecture of a septic tank, and we will answer questions and offer recommendations on how to get your septic tank running correctly, as well as the problems that may prevent your septic tank from working well. Likewise, see:

  • Design and construction of a septic tank
  • The size of a septic tank and how large it should be. Septic system maintenance
  • Toilets and drains that are clogged

How Does A Septic Tank Work?

Septic tanks are sewage treatment devices that are used on a modest basis. They are easy to use and, when used appropriately, may be quite successful. According to the definition of sewage in a residential context, the output from your toilet and sewerage is the infrastructure that transports it. A sewer is a conduit that is used to transport sewage. It should be noted that the terms sewage and sewerage are used interchangeably in American English.

Black Water

Septic tanks, as opposed to greywater treatment systems, are designed to handle only black water. Black water, bad water, or sewage is defined as water that contains human waste, specifically fecal matter and/or urine, and is used for residential reasons.

Grey Water

Greywater is water that has been discharged from washing procedures, and as we will discuss later, it should be maintained separate from sewage systems to avoid contamination. The fact that it does not contain any bacterial contamination allows it to be treated differently.

The Bacterial Process in a Septic Tank

Consider the process that takes place in a septic tank. Understanding this process will enable us to understand what is crucial about the tank’s design and how we can ensure that a septic tank is operating correctly and effectively. Upon entering the first chamber of the septic tank, raw sewage is separated from solid waste, which falls to the bottom of the tank where bacteria begin to devour the solid waste. It is naturally existing bacteria that enable your septic tank to function properly.

Their actions on sewage result in its transformation into liquid and gas since they do not require oxygen.

A thick crusty scum accumulates on the surface of the water as a result of the gas being created and rising to the top of the water.

This is an anaerobic process, which implies that it does not require the presence of oxygen (as opposed to an aerobic process which involves nubile young bodies dressed in leotards frolicking around to loud music, panting, grunting and gulping in masses of oxygen).

The Second Stage – Second level bacterial action

Starting with the process that takes place in a septic tank, we can better grasp what is crucial about the tank’s design and how we may ensure that a septic tank is operating appropriately and efficiently moving forward. Septic tanks are designed to allow raw sewage to enter the first chamber of the tank, where solid waste is deposited to the bottom of the tank where microorganisms begin to devour it. It is naturally existing bacteria that enable your septic tank to function properly. Once established in the tank, these bacteria grow at an alarming pace.

When the bacteria digest solid waste particles, only a tiny fraction of them remains at the bottom of the tank as sludge, and the rest is disposed of as wastewater.

A typical processing time for this initial step is three to four days.

The “brew,” as we should expect it to be at this point, should be 60 to 70% processed.

The final stage – killing the good bacteria

The liquid exits the tank through a discharge line after passing through the second chamber and being almost completely treated. In many countries, the legislation mandates that this discharge be routed to a final phase, which allows the bacteria to complete their function and die.

The Drainage or Leach Field

Normal drainage fields are known as seepage or leach fields, and they are located under the surface of the ground. The discharge is channeled through a network of pipes that are buried near the surface of the earth. The pipes are perforated with a large number of seepage holes, which allow the discharge to soak away into the earth and disappear. During this procedure, ultraviolet light and naturally existing bugs (which require oxygen to survive) break down the last remnants of contamination and destroy the bacteria found in septic tanks.

This water can now securely percolate through the earth to the water table beneath the surface of the water table.

In addition to septic tank discharge water being fed to biofilter systems, wetland areas where plantlife, snails, and other life forms clean the water, and other systems that may sterilise the discharge water, such as using chlorine (which is not the same as swimming pool chlorine) or ultraviolet (UV) light, there are other options for handling septic tank discharge water.

For example, in many parts of the world, particularly in developing countries where there is a lack of access to piped sewage systems, septic tanks have become commonplace.

When there are no other choices available, septic tanks are simply let to flow onto the surrounding land, causing flooding.

The reason for this is that ground water is frequently polluted, and because water delivery pipes in such areas are frequently fractured or leaky, enabling toxins to infiltrate the water supply, tap water is a common source of disease.

The importance of healthy bacteria in your septic tank

A septic tank works best when the bacteria in it is healthy, and the bacterium that naturally resides in our gut is the most effective bacteria for breaking down human waste. Similar to the condition of human digestive tracts, a septic tank may not function properly if the bacteria population is out of balance. It may begin to smell and may fill up rapidly if the waste is not completely decomposed.

Do not put disinfectants in your septic tank.

Disinfectants can destroy the microorganisms in your septic tank, causing it to cease operating.

Do not use additives in your septic tank.

Septic tank additives are being offered in several regions of the world in order to “improve” the performance of the tanks. Septic tanks do not require the use of chemicals since they function with naturally occurring bacteria that reproduces fast in order to deal with the waste that accumulates in the tank. What salespeople may claim about additions is irrelevant since scientific research shows that additives can interfere with the natural process and should not be utilized. Additives may include bacteria of various strains, which may cause your septic tank to go out of equilibrium.

Do not put yeast in your septic tank

It should be noted that yeasts are not bacteria and that they may both compete with and actually limit the function of beneficial bacteria. Candidaiasis is a disorder in which a bowel that has lost its healthy bacterial balance (typically as a result of taking antibiotics) is taken over by yeasts, resulting in a yeast overgrowth (candida albicans). It might take several years for persons who suffer from this disorder to regain a healthy balance in their bowels and digestive system. Because of this, it is not recommended to dump waste into a septic tank.

Why does a septic tank have two chambers?

Obviously, raw sewage entering the tank will mix with the partially treated water already present in the tank. Septic tanks are divided into chambers to allow for a two-stage process to be implemented. Upon entering the first chamber, raw sewage will displace the partially processed contents, which will then be forced into the second chamber, resulting in a separation of raw sewage from partially cleaned water in the process. Having grasped this concept, it becomes clear that we must attempt to minimize turbulence when raw sewage enters the tank, and that we must also enable partially treated water to travel softly from the first to second tanks.

Maximising the efficiency of a septic tank?

There are a lot of things we can do to ensure that our septic tank is working as efficiently as possible and that the amount of purification it can reach is as high as feasible. To begin, we must ensure that our septic tank is operating at peak efficiency. It must be correctly designed and must not leak in any way. It should be constructed with sufficient strength to prevent cracking as a result of ground movement. 2. We can make certain that the design minimizes turbulence, both when sewage enters the tank and when it passes from one chamber to another.

  1. We have the ability to hold the liquid in the tank for an extended period of time in order to complete the processing: a.
  2. Only black water (sewage) should be discharged into the septic tank, and groundwater or rainwater should not be allowed to enter the tank.
  3. Pump out the sludge on a regular basis to keep the tank’s capacity at a reasonable level.
  4. Another highly successful step we may implement is the addition of a third chamber to the septic tank, which essentially creates a third stage of filtration.
  5. We could become sick if we consume the bacteria, but they are actually our allies in our fight against disease.
  6. Our treasured bacteria can be killed and our septic tank’s efficacy can be reduced if our grey water contains antibacterial soaps, disinfectants, caustic floor cleanser, bleach, water softener, and other chemicals.
  7. This can block your pipes and cause your septic tank to fill up with waste.

With that, we can finally close the lid on the thing (thank heavens) and forget about it for another five years. Likewise, see:

  • Design and construction of a septic tank
  • The size of a septic tank and how large it should be. Septic system maintenance
  • Toilets and drains that are clogged

Phil Wilson is the owner of the copyright. The month of October 2014 This article, or any part of it, may not be duplicated or reproduced without the express consent of the author or owner of the copyright.

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