1. The characteristics of methane  tank

The biogas tank of double diaphragms is made of red mud and high-strengthened, high-elastic synthetic engineering diaphragm and of perfect anti-acid and anti-corrosion abiligy . Its capacity of absorbing the ambient heat and storing it is 35% higher than that of other material.The biogas tank is made by adopting a technology of combining internal digester and external protecter. In this way, it not only greatly mininmizes the possibility of doing damage to the internal digester, prolong its lifespan, and also creates a complete oxygen-free room for anaerobic microorganisms to do fermentation, which in return increases the biogas output ratio.

2.Advantages of biogas tanks

(1)Airproof performance

Sealant is unnecessary, for it is of excellent airproof performance to guarantee an anaerobic fermenting situation, and is very easy to check for leakage.

(2)No crustCrust is not prone to be formed , circulating automatically uncdr the influence of pressure and fall to stir the fermenting material.

(3)Feed inlet and outlet: It is easy to add material. Open the ball valve to discharge the waste.

(4)Technicians required: It is easy to build pits. The skill of building pits is easy to master, so there is no need to train workers.