Integrated treatment system for public toilet sewage

Abstract

The invention discloses an integrated treatment system for public toilet sewage. The system comprises a septic tank, a regulating tank, a biochemical treatment device and a clean water tank which arecommunicated in sequence. The biochemical treatment device is combined with an MBR (Membrane Bioreactor) through multi-stage AO, the multi-stage AO alternately occurs, so that nitrification and anoxicdenitrification phosphorus removal are alternately carried out, synchronous nitrogen and phosphorus removal is realized, and organic matters in the public toilet sewage can be completely decomposed.Then, activated sludge and macromolecular organic matters in the public toilet sewage are intercepted through the MBR. The purification processes are progressively hierarchical, the purification efficiency is greatly improved, the nitrogen and phosphorus removal effect of the sewage is enhanced, solid-liquid separation is efficiently realized, the quality of effluent is high and stable, the problems of activated sludge loss and substandard effluent due to the fact that a sludge bulking phenomenon easily occurs in a common biological treatment process are solved, and meanwhile, the amount of residual sludge is small, so that the treatment cost of the sludge is reduced, and the treated sludge can reach the standard of reclaimed water reuse.

Description

Technical field: [0001] The invention relates to the field of sewage treatment, in particular to an integrated sewage treatment system for public toilets. Background technique: [0002] In recent years, with the rapid development of my country’s economy and society, people’s living standards have been significantly improved. The massive construction of public toilets has brought convenience to people’s daily lives and produced a large amount of excrement and sewage. The discharge of urine and sewage into the external environment has caused serious pollution. Therefore, how to conveniently and efficiently treat the fecal and urine sewage in public toilets such as villages, scenic spots, and highway service areas that cannot be collected by the pipe network has become an urgent problem. [0003] The existing sewage treatment equipment processes are: A2O (ie anaerobic-anoxia-aerobic activated sludge method) biological nitrogen and phosphorus removal process is the traditional activated...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the existing problems and provide an integrated sewage treatment system for public toilets, which not only strengthens the nitrogen and phosphorus removal effects of sewage, but also greatly reduces the area occupied

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