Is septic tank the same as biogas digester?

First, the performance characteristics are different.

1, Septic tank: Compared with the traditional septic tank, it has poor ability to remove organic matter, does not meet the hygiene standards, draws feces regularly, has a large transportation volume, is inconvenient to manage, and is prone to methane explosion.

2. biogas digester: the removal rate of organic matter is high, the removal rate of COD is above 78%, and the removal rate of BOD is above 82%; To prevent sludge from floating, the multi-stage filtered water is neutral, with good health and environmental protection effect, which can basically meet the standard: a certain high-quality gas can be obtained. However, biogas digesters also have some problems, such as high effluent chroma and poor NH3-N removal rate.

Second, the principle is different.

1. Septic tank: a treatment facility for removing suspended organic matter from domestic sewage by using the principles of sedimentation and anaerobic fermentation, belonging to a primary transitional domestic treatment structure.

2. Biogas digester: Biogas digester is connected with barn, toilet and sunlight greenhouse, so that human and animal manure can continuously enter the biogas digester, ensuring normal and continuous gas production, facilitating manure management and improving environmental sanitation, and biogas slurry can be conveniently transported to vegetable fields in sunlight greenhouse for use as fertilizer.

Extended data:

Application characteristics of biogas digester:

1, provide cheap and high-quality fuel for rural areas, and build a 6? ~ 10? As long as the raw materials are sufficient, the biogas digester can provide 9~ 1 1 month of cooking and lighting fuel a year. Because biogas slurry can be used as pesticide, fertilizer, feed and so on. It can also be used as a resource to achieve the purpose of saving. ?

2. Change farmers' old living habits and improve rural living environment. The biogas digester will be built with toilets and pigsty, which is not easy to breed mosquitoes and has no odor. It will play an important role in eliminating infectious diseases such as schistosomiasis and hookworm disease.

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