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Treatment method and system of animal husbandry breeding wastewater

A breeding wastewater and treatment method technology, which is applied in animal husbandry wastewater treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of high concentration of nitrogen and phosphorus, high suspended solids in effluent, etc., and achieve low operating cost and high efficiency. Obvious and stable effect

Inactive Publication Date: 2016-11-23
GUANGDONG SHUIQING ENVIRONMENTAL PROTECTION TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a treatment method and system for animal husbandry wastewater, which solves the problems of high suspended solids and high concentration of nitrogen and phosphorus in the effluent obtained from the existing animal husbandry wastewater treatment process

Method used

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  • Treatment method and system of animal husbandry breeding wastewater
  • Treatment method and system of animal husbandry breeding wastewater
  • Treatment method and system of animal husbandry breeding wastewater

Examples

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Embodiment Construction

[0018] Examples such as Figures 1 to 3 Shown, a kind of treatment method of animal husbandry wastewater, including solid-liquid separation pre-treatment stage and biochemical reaction post-treatment stage;

[0019] The pre-treatment stage of solid-liquid separation includes: collecting waste water into a first sump, and pumping the waste water in the first sump into a solid-liquid separator through a pump for solid-liquid separation to remove large suspended particles; Then, the waste water from the solid-liquid separator is sent to the first intermediate pool, and the waste water in the first intermediate pool is pumped to the high-efficiency mud-water separation device to fully stir and react with the added PAC and PAM to produce precipitation, and further remove fine particles such as plant fibers. Suspended solids and organic matter; finally, the wastewater from the high-efficiency mud-water separation device is transported to the primary sedimentation tank for sedimentat...

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Abstract

The invention discloses a treatment method and system of animal husbandry breeding wastewater. Suspended matters and fine fiber in waste liquid are removed at a solid-liquid separation pretreatment stage by mainly using an efficient mud-water separation device, so that convenience is brought to treatment of a subsequent biochemical reaction aftertreatment stage, and two-stage anaerobic-aerobic (AO) and biological aerated filter are adopted as core treatment processes at the biochemical reaction aftertreatment stage. Through the above treatment process, nitrogen and phosphor removal effect is obvious, and the system is high in impact load resistance, stable in running, low in running cost and convenient in equipment maintenance and can be widely applied in the field of treatment of animal husbandry breeding wastewater.

Description

technical field [0001] The invention relates to the field of animal husbandry wastewater treatment technology, in particular to a treatment method and system for animal husbandry wastewater. Background technique [0002] With the continuous development of the economy and the improvement of living standards, large-scale, centralized cattle, sheep, pigs and other animal husbandry farms are also developing rapidly. The treatment of shed wastewater has been paid more and more attention. At present, my country's large-scale animal husbandry wastewater generally adopts the SBR process or a single anaerobic-aerobic process, which has weak impact load resistance and unstable effluent quality; and the biogas slurry after anaerobic digestion contains a large amount of refractory cellulose, suspended The concentration of the biogas is extremely high, the removal is difficult, the concentration of nitrogen and phosphorus is high, and the ratio of carbon to nitrogen is low. Therefore, if...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/20
CPCC02F1/5245C02F1/56C02F1/66C02F3/28C02F3/302C02F9/00C02F2001/007C02F2103/20C02F2303/04Y02E50/30
Inventor 林国宁张建华赖日坤梁康祜刘晓珊
Owner GUANGDONG SHUIQING ENVIRONMENTAL PROTECTION TECH CO LTD
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