Bio Digester Tank

The Ultimate Guide For Bio Digester Tank

In light of the increasing population and the increased production of sewage is having a huge impact on the sewage treating systems in India. Most cities in India do not have a specific sewage treatment plant and the most common practice used is a septic tank. A septic tank is a collection and slow treatment system which treats the sewage produced by the households. But these tanks are not very efficient and are very dangerous to clean and maintain. To increase the efficiency of the sewage treatment, the Defence Research and Development Organisation (DRDO), a government body working under the Ministry of Defence, Government of India, developed a new technique. 

DRDO introduced a new and improved type of septic tank and named them bio digester tanks. These tanks do the same work like a septic tank which is to decompose and treat the sewage, but more efficiently. These tanks, sometimes also called bio septic tank, uses additional decomposing bacteria to speed up the decomposition process and does not leave any kind of unusable waste. In this article, we are going to discuss everything about a bio digester tank, it's working, its types, and its advantages over septic tanks. But first, let’s know more about the tank itself.

 What is Bio Digester Tank? 

A bio digester tank is a specially designed tank that treats the daily generated sewage and converts it into useable water and gases. The bacteria present inside the bio septic tank decomposes the sewage into simpler forms and treats it to make it usable for purposes like irrigation. The treated water is not clean enough to be used again in the houses but it does reduce the pollution and hazards caused by the septic tanks. Many cases come to light where accidents happen while cleaning the septic tanks and people lose their lives in these accidents. A bio digester septic tank eliminates all these hazards and helps the government tackle this increasing problem of pollution. Unlike septic tanks, these bio tanks do not leave any kind of solid waste (sludge) which needs to be cleaned. The final treated products are water and gases.

Types of Bio Digester Tanks 

Now, the question arises, is every bio septic tank is same? And the question is, no. There are various kinds of digester tanks and all of them have different applications. One of them is suitable for a cattle farm, whereas another is suitable for a household sewage treatment purpose. The most common types of bio digester septic tanks are: 

• Covered Anaerobic Lagoon: The sewage collected in this bio digester tank settles down in a large pool covered with a flexible cover in form of a canopy. The biogas generated flows directly to the place where it is used instead of a storage tank. This is most useful where the sewage is in liquefied form. 

• Plug Flow Digester: This type of bio digester tank is best used in a cattle farm where the waste is collected from the floor slats. These tanks can tolerate some level of solid waste and the covering can be either flexible or rigid. 

• Complete Mix Digester: This bio digester tank is best used in households where the main waste treated is the sewage produced. This is generally placed above the ground instead of buried. The tank is enclosed and heated with the help of a hydraulic system to easily mix the gases produced and the substrate is sent to a pit known as the reception pit connected directly to the bio septic tank.

 

Working of Bio Digester Tanks 

The working of a bio digester septic tank is relatively simple and easy to understand. The working is given below in points to help you easily understand the complete working process of the tanks: 

• The sewage produced is supplied to the bio digester tank through a piping system connected from every corner of the house. All the sewage is collected inside the tank.
• Sometimes, after the sewage is collected inside the tank, additional decomposing bacteria is added to fasten the process.
• After the bacteria is added to the bio digester tank, the sewage is left untouched and slowly the bacteria decompose the waste and convert it into liquid and gaseous components.
• The treated water produced by the bio digester septic tanks is an excellent choice for irrigation.
• The gases produced by the bio septic tanks are 60% methane, 30% carbon dioxide, and the rest is hydrogen sulphide.
• The produced gases are transferred either to a storage tank or directly to the place where it is to be used.
• The water is removed from the bio digester tank and is generally sent to the farms where large scale agricultural processes are performed.

 

Advantages of Using Bio Digester Tanks 

Using a bio digester tank is very beneficial for the environment and us. There are many advantages of using a bio digester septic tank in our houses and farms. We’ve listed the most common and useful advantages these tanks have over conventional septic tanks: 

• Using a bio digester tank does not create any type of pollution which keeps our environment clean and healthy.
• A bio digester tank does not require frequent cleanings like septic tanks and the cleaning process is very easy. It can be done by anyone and does not require a professional to perform.
• Using a bio septic tank completely decomposes the harmful sewage generated in our households and on the cattle and animal farms.
• These bio digester tanks decompose the waste materials and convert them into a useful substance that can be used at home for purposes like farming, cooking, etc.
• Using a bio digester septic tank, we reduce the pressure in the government sewage treatment plants meaning they can treat the sewage more efficiently and produce clean potable water.

 

Conclusion 

In this article, we covered everything you needed to know about a bio digester tank and we hope you understood each point with ease. There is no doubt that these tanks are truly a very useful piece of equipment that helps keep our environment clean. If you want to buy a bio digester tank from the best manufacturers and suppliers in India, visit aajjo.com where you can find a large variety of products in different sizes and qualities. You can choose according to your requirements. Also. If you have any kind of queries, contact our customer support. We are happy to help you in any way possible.