Method for treating sewage by using engineering microbes

Abstract

The invention provides a process for treating sewage by using microbes. According to the process, pollutants in the sewage are deeply degraded by using a microbial composite preparation consisting of multiple microbes, and the treatment process is divided into three stages, wherein the initial dynamic culture stage generally needs 7-15 days; the dynamic culture stage generally needs 8-10 days, and the dynamic running stage realizes continuous sewage treatment after the dynamic culture stage. The method can safely, harmlessly, thoroughly and efficiently complete water purification; when microbial treatment is started, sludge is not needed to culture the microbes; the microbial composite preparation is clean, nontoxic and harmless, and does not cause secondary pollution; the process is simple in flow, convenient in maintenance, simple and convenient in operation, low in investment and low in running cost. The method can be used for treating high-concentration organic wastewater, garbage waste liquid, domestic sewage and the like.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a process for treating sewage with microbial preparations. [0002] Background technique [0003] At present, the treatment process of urban sewage in my country mainly adopts the conventional activated sludge method and the sludge membrane method. A large amount of activated sludge sources need to be introduced at the initial start-up, the cultivation and acclimation period is long, the start-up is slow, and a sludge return system needs to be set up , Sludge bulking may also occur, and once it occurs, the consequences will be serious. At the same time, sewage foam will affect the aeration efficiency. Furthermore, the one-time engineering investment is large, the processing cost is high, and the power consumption is relatively large. Contents of the invention [0004] The object of the present invention is to provide a process for treating sewage with microbial preparations, which ...

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment process of urban sewage in my country mainly adopts the conventional activated sludge method and the sludge membrane method. A large amount of activated sludge sources need to be introduced at the initial start-up, the cultivation and acclimation period is long, the start-up is slow, and a sludge return system needs to be set up , Sludge bulking may also occur, once it happens, the consequences will be serious, at the same time, sewage foam will affect the aeration efficiency

Furthermore, the one-time engineering investment is large, the processing cost is high, and the power consumption is relatively large.