High-activity bio-bed sewage treatment intensification system and sewage treatment method

Abstract

The invention discloses a high-activity bio-bed sewage treatment intensification system and a sewage treatment method, wherein the sewage treatment intensification system comprises a grid well, a primary settler, a sludge acidification tank, a multi-stage desliming tank-aerobiotic tank unit, an MBR (Membrane Bio-Reactor) tank and a disinfecting tank, all of which are communicated in series with one another; a filler is arranged in each desliming tank and an aerator unit is arranged at the lower part of each aerobiotic tank; the aerator unit is also arranged at the lower part of the MBR tank; all the aerator units are connected with a blast blower through a pipeline; and an MBR membrane assembly is arranged in the MBR tank. The high-activity bio-bed sewage treatment intensification system has the advantage of causing the quality of yielding water to be better instead of causing sludge bulking. In addition, an anaerobic HSB (High Solution Bacterium) release / aerobic process is carried out repeatedly to repeatedly scrub the sewage, thereby changing the growth environment of microorganism; in this way, the dominant bacteria are screened out, enriched and fixed, and thereby formed into a high-activity bio-bed to efficiently treat the sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a highly active biological bed sewage treatment intensive system and a sewage treatment method. Background technique [0002] Since the activated sludge method was proposed in 1914, it has been widely used in the treatment of domestic sewage and industrial wastewater. The form of its reactor is also constantly developing, and it is an ancient water treatment process that is still in continuous development. The key in the activated sludge process is activated sludge, whose settling performance directly affects the quality of effluent water, and sludge bulking is an important reason for the deterioration of treated water quality. The apparent phenomenon of sludge bulking is that the structure of activated sludge flocs is looser than that of normal flocs, the volume expands, and the water content increases, which is not conducive to the absorption and degradation of nutrients (organ...

AI Technical Summary

Problems solved by technology

Although these methods have played a positive role in how to control sludge bulking, they generally only treat the symptoms, not the root cause.

Especially in the underground integrated equipment with a high degree of intensive sewage treatment, once the sludge bulking occurs during actual operation, the entire treatment system will be paralyzed

When using activated sludge to treat sewage, sludge swelling is unavoidable, which seriously affects the water quality treatment effect.

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