Farm waste water treatment method

Abstract

The invention provides a sewage treatment method for farms, which comprises the following steps: sending the waste water from the farms into a sieve filter tank through a sewage pipe, sending the waste water after removing solid matter into a primary sedimentation tank through a lifting pump, and separating fine particles of waste water Enter the regulating tank, the wastewater in the regulating tank is sent into the UASB high-efficiency anaerobic tank through the lifting pump, and the effluent of the UASB high-efficiency anaerobic tank flows into the SBR tank for biological oxidation, and the mud-water mixture is exported, and the mud-water mixture is sent into the The secondary sedimentation tank separates the mud and water in it, sends the separated sludge into the sludge thickening tank, and discharges the clarified water; the clarified water is sent into the contact tank through the lifting pump, and ozone is used for disinfection, and the clarified water after the treatment of the contact tank Water is fed into facultative pools. The treatment method system in the present invention has low energy consumption and low operating costs; this scheme strengthens the effect of pretreatment and anaerobic treatment, so that the pollution is greatly removed before the aerobic treatment that requires energy consumption, thereby reducing the load of aerobic biochemical treatment and saving energy consumption.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for treating sewage in a farm. Background technique [0002] The sewage from the farm mainly includes animal urine, part of the animal excrement and the washing water of the breeding house, which is a high-concentration organic sewage with a large content of suspended solids and ammonia nitrogen. After this untreated sewage enters the natural water body, it increases the content of suspended solids, organic matter and microorganisms in the water, changes the physical, chemical and biological community composition of the water body, and deteriorates the water quality. Sewage also contains a large number of pathogenic microorganisms, which will spread through water bodies or through aquatic animals and plants, endangering human and animal health. In order to achieve the organic combination of economic benefits, social benefits and environmental benefits, and make...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a sewage treatment method for farms, which solves the problems of high investment, high operating costs and inconvenient operation and management in the existing sewage treatment of farms

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