Sewage treatment microbial bacteria for industrial waste

Sewage treatment is usually divided into physicochemical methods, biochemical methods and chemical methods. Chemical method generally refers to the advanced treatment of sewage. There are also many methods. The physical and chemical method is mainly physical sedimentation, usually adding coagulants (inorganic or organic) or/and flocculants (mostly polyacrylamide) to flocculate and separate the SS (suspended solids) and insoluble COD in the sewage from the sewage after sedimentation. . The separated sludge is called physicochemical sludge or primary sludge.

The biological treatment of sewage by biological bacteria agents is a commonly used biochemical method in sewage treatment: the biochemical method mainly uses microbial activated sludge to biodegrade and digest the organic matter in the sewage. The excrement produced by the microorganisms consumes the organic matter in the sewage is the so-called biochemical sludge . In sewage treatment, biochemical sludge is usually separated from sewage by adding coagulant (inorganic or organic) or/and flocculant (mostly polyacrylamide) in the secondary sedimentation tank (it can also be air flotation).

Biochemical treatment of sewage is mainly divided into anaerobic treatment (in an anaerobic tower) and aerobic treatment (usually the waterfall gas pool in the sewage treatment process). The purpose of anaerobic treatment is to reward larger molecular weight organic matter in sewage. Degradation and digestion. Aerobic treatment is the further treatment of organic matter with smaller molecular weight in sewage.