Treatment technology and equipment for sewage of IV-type standard surface water

Abstract

The invention discloses a treatment technology and equipment for sewage of IV-type standard surface water. The equipment comprises a pre-oxygen-deficiency tank, an anaerobic tank, an oxygen-deficiencytank, an MBBR aerobiotic tank, an MBR membrane tank, an ECPI electro-catalysis oxidation device, a charcoal filter tank, an NPDP nitrogen and phosphorus deep purifier and a biological pond which arecommunicated in sequence. A nitration solution reflux pipe is communicated between the tail end of the MBBR aerobiotic tank and the front end of the oxygen-deficiency tank, and a sludge reflux pipe iscommunicated between the tail end of the MBR membrane tank and the pre-oxygen-deficiency tank. The equipment is manufactured in a standardization mode or is arranged in a civil engineering and equipment mixing arrangement mode, namely a partial civil engineering and partial equipment mode or a container-type modularization mode. The treatment technology and equipment for the sewage are advanced;in combination with the biological pond, the problem of a surrounding environment is solved, and the requirements for reaching the IV-type discharging water quality in rural sewage treatment and upgrading and reconstruction and city sewage treatment and upgrading and reconstruction and some local quasi-IV-type discharging requirements are met. The construction requirements for sewage and wastewater treatment during deep treatment of other industrial sewage and the like are met.

Description

Technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment process and equipment for class IV standard surface water sewage. Background technique [0002] With the rapid development of social production in our country, surface water is facing varying degrees of pollution from various aspects such as industry, agriculture, and life. Domestic sewage, including urban sewage, is the waste water discharged in the daily life of residents, mainly from residential buildings and public buildings, such as houses, offices, schools, hospitals, shops, public places and industrial toilets. The main pollutants contained in domestic sewage, including urban sewage, are organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious viruses, etc.). The organic matter present in domestic sewage including urban sewage is extrem...

AI Technical Summary

Problems solved by technology

With the overall improvement of people's living standards and environmental requirements, the requirements for the treatment and discharge of domestic sewage, including urban sewage, are not limited to Class A discharge standards, and the sewage treatment and discharge requirements in some areas have to meet the Class IV standard surface water discharge standards, even Class III surface water discharge standards, and the current process and equipment technology for this type of treatment still needs to be optimized to meet the corresponding discharge standards for domestic sewage, including urban sewage, etc.

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