Treatment method of anaerobic fermentation biogas slurry from livestock and poultry raising

A technology of anaerobic fermentation and biogas slurry treatment, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Unbalance and other problems, to achieve the effect of improving water quality, simple and easy process, and low cost
CN102701512AInactive Publication Date: 2012-10-03TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a treatment method of anaerobic fermentation biogas slurry from livestock and poultry raising. After pH adjustment, the anaerobic fermentation biogas slurry enters an ammonia blow-off column for ammonia nitrogen pretreatment; after pH adjustment, the effluent enters a SBR pool for biochemical treatment; easily-degraded COD is removed through microbial metabolism in the SBR pool; ammonia and nitrogen are further removed through nitrification and denitrification; and total phosphorus is also removed partially; SBR effluent enters a coagulation slanting board sedimentation pool to complete removal of difficultly-degraded organic matter and residual total phosphorus. The invention provides simple, high-efficient, highly-applicable, and standard treatment technology ofanaerobic fermentation biogas slurry from livestock and poultry raising.
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Description

technical field

[0001] The invention relates to a wastewater treatment method, in particular to a livestock and poultry breeding anaerobic fermentation biogas slurry treatment method. Background technique

[0002] The use of biogas technology to treat livestock and poultry breeding waste can not only control environmental pollution, but also realize waste recycling, and achieve better energy, environmental protection and economic benefits. Therefore, my country's large and medium-sized biogas projects are currently showing unprecedented growth momentum, but the disposal of anaerobic fermentation biogas slurry in biogas projects is still a worry for many construction units. Biogas slurry is produced in a large amount, and it is difficult to consume and utilize it locally. Long-distance transportation consumes a lot of energy and costs, and random discharge will cause secondary pollution to the environment. At present, biogas slurry disposal methods and technologies at home a...

Claims

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