Circulating device for breeding wastewater treatment

Abstract

The invention discloses a circulating device for breeding wastewater treatment. The circulating device comprises a breeding house, a sewage collecting tank, a pretreatment box, a solid-liquid separator, a facultative box, an aeration box, a biological membrane filter and a well which are sequentially connected, wherein a cleaning water tank, a drainage groove and a drainage ditch are arranged in the breeding house, the tail end of the drainage ditch extends out of the house to be communicated with the sewage collecting tank, a water supply pump is arranged at the well and connected with the cleaning water tank through a main water supply pipe, and the cleaning water tank is connected with a branch cleaning pipe. The sewage collecting tank, the pretreatment box, the solid-liquid separator,the facultative box, the aeration box, the biological membrane filter and the well are sequentially arranged, wastewater discharged by the biological membrane filter is sterilized after entering the well and then pumped into the cleaning water tank in the breeding house, the cleaning water tank cleans the ground and the drainage groove in the breeding house by the aid of a cleaning pipe and the branch cleaning pipe, cleaned sewage is circulated, so that the water resource is recycled, the device is better in operation stability, and the operation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of multi-stage treatment of water, waste water or sewage, and in particular relates to a breeding waste water treatment circulation device for rural farming. Background technique [0002] In recent years, with the adjustment of my country's agricultural structure and the advancement of agricultural industrialization, the large-scale and intensive livestock and poultry breeding industry has developed rapidly and has become an important part of my country's agricultural and rural economy; however, the development of these farms satisfies the It has met the large demand of urban residents for meat, poultry and egg food, and has also become an important source of pollution to pollute water bodies; the annual wastewater discharge of livestock and poultry farming in my country exceeds 10 billion tons, and the nitrogen, phosphorus, and antibiotics contained in livestock and poultry farming wastewater ( Such as sulfon...

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Problems solved by technology

[0002] In recent years, with the adjustment of my country's agricultural structure and the advancement of agricultural industrialization, the large-scale and intensive livestock and poultry breeding industry has developed rapidly and has become an important part of my country's agricultural and rural economy; however, the development of these farms satisfies the It has met the large demand of urban residents for meat, poultry and egg food, and has also become an important source of pollution to pollute water bodies; the annual wastewater discharge of livestock and poultry farming in my country exceeds 10 billion tons, and the nitrogen, phosphorus, and antibiotics contained in livestock and poultry farming wastewater ( Such as sulfonamides, macrolides and tetracyclines) and heavy metals (copper, arsenic, zinc, lead and nickel, etc.) and other low-concentration but highly harmful pollutants pose a huge potential threat to human health

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