Pig farm sewage treatment system

A technology for a sewage treatment system and a pig farm, which is applied in the field of the sewage treatment system of a pig farm, can solve the problems of increasing the difficulty of denitrification of wastewater from a pig farm, and achieves prolonging the sludge age, improving the denitrification effect, and improving the denitrification effect. Effect

Inactive Publication Date: 2016-08-17
防城港市动物疫病预防控制中心
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Problems solved by technology

The above contradictions further increase the difficulty of denitrification of pig farm wastewater

Method used

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  • Pig farm sewage treatment system
  • Pig farm sewage treatment system

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Embodiment Construction

[0017] The following specific examples further illustrate the present invention, but are not intended to limit the present invention.

[0018] Such as figure 1 As shown, the sewage treatment system for pig farms of the present invention includes anaerobic pond 1, biological pond 2 and sedimentation pond 3; Located on the top of the biological pool 2, the top of the biological pool 2 is also provided with a water outlet 5, which communicates with the sedimentation tank 3 through a pipeline; the bottom of the biological pool 2 is provided with a return pipe 6, which is connected to the biological The water inlet 4 of the pool 2 is connected; the middle part of the biological pool 2 is provided with an aquatic plant layer 7, and duckweed or water hyacinth are planted in the aquatic plant layer 7, and the bottom of the biological pool 2 is provided with a microporous aeration device 8, and the microporous aeration The aeration device 8 is connected to the blower 9 outside the bio...

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Abstract

The invention provides a sewage treatment system of a pig farm. The system comprises an anaerobic tank, a biological tank and a settling pond, wherein the anaerobic tank is communicated with a water inlet of the biological tank through a pipeline, the water inlet is formed at the upper part of the biological tank, a water outlet is further arranged at the upper part of the biological tank, and the water outlet is communicated with the settling pond through a pipeline; a return pipe is arranged at the bottom of the biological tank and is communicated with the water inlet of the biological tank; an aquatic plant layer is arranged in the middle of the biological tank, a microporous aerating device is arranged at the bottom of the biological tank, and the microporous aerating device is connected with an air blower out of the biological tank; a sludge discharge pipe is arranged below the microporous aerating device and is connected with a sludge discharge pump out of the biological tank. The sewage treatment system can be used for better degrading organic matters in high concentration organic sewage and further has a good denitriding effect, and the effluent quality can satisfy the discharge requirement of GB18596-2001 Discharge Standard of Pollutants in Livestock and Poultry Industry.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a sewage treatment system for pig farms. Background technique [0002] In recent years, my country's large-scale and intensive livestock and poultry breeding industry has developed vigorously. The modern closed-scale large-scale breeding technology has promoted the development of my country's urban livestock and poultry breeding industry to high-quality and efficient development, and the ensuing discharge of livestock and poultry breeding wastewater has also shown The trend of increasing year by year has caused serious environmental pollution such as soil, water and air to the region. Due to my country's preference for pork, the number and scale of pig farms are large, and the wastewater discharge from pig farms accounts for more than half of the total wastewater discharge from livestock and poultry farms. Pig farm wastewater has high organic matter content, CODcr up to 4000-8000mg / L,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/32
Inventor 吴洁袁成进严小东莫模双曹国敏裴幸彪
Owner 防城港市动物疫病预防控制中心
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