Sewage treatment system for farm

Abstract

The invention discloses a sewage treatment system for a farm. The sewage treatment system comprises a settling pond, a waste pretreatment pool, a methane tank, a methane treatment device, a filter tank, an anaerobic reactor, an acid-base regulating reservoir and a biological reaction tank, wherein the settling pond and the waste pretreatment pool, the waste pretreatment pool and the methane tank, and the methane tank and the methane treatment device are sequentially connected; the settling pond and the filter tank, the filter tank and the anaerobic reactor, the anaerobic reactor and the acid-base regulating reservoir, and the acid-base regulating reservoir and the biological reaction tank are sequentially connected; at least one anaerobic reaction tank is arranged inside the anaerobic reactor; the water inlet of the anaerobic reaction tank is connected with the filter tank; the water outlet of the anaerobic reaction tank is connected with the acid-base regulating reservoir. By adopting the sewage treatment system for the farm disclosed by the invention, the filtered sewage in the farm is simply and efficiently treated by the anaerobic reactor, the acid-base regulating reservoir and the biological reaction tank, the problem that the environment is seriously polluted by the sewage is avoided, and multi-utilization of the sewage in the farm is achieved by the methane tank.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment system for farms. Background technique [0002] In recent years, with the development of the economy and the improvement of people's living standards, the demand for animal husbandry products has also continued to increase, which has promoted the development of my country's animal husbandry industry in the direction of scale and intensification. According to the survey, most farms in China currently use the method of dry manure cleaning, and most of the livestock and poultry breeding wastewater produced is wastewater such as washing pens. These wastewater are directly discharged or washed into rivers, lakes and reservoirs with rainwater, making the water black. Smelly; seeping into the ground for a long time will increase the nitrate content in the groundwater, deteriorate the water quality, seriously pollute the surrounding environ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a wastewater treatment system for farms, which aims to solve the problems of water quality deterioration caused by the direct discharge of wastewater from farms into rivers, lakes and reservoirs, pollution of the surrounding environment and the health of nearby residents

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