Novel up-flow anaerobic sludge blanket for treating wastewater of pig farm

An up-flow anaerobic and pig farm wastewater technology, applied in the field of UASB) reactor, can solve the problem of not being able to process ammonia nitrogen at the same time, and achieve the effect of strong processing capacity

Inactive Publication Date: 2011-08-17
NANCHANG UNIV
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  • Abstract
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Problems solved by technology

But UASB has the disadvantage of not being ab

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  • Novel up-flow anaerobic sludge blanket for treating wastewater of pig farm

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[0016] A large-scale pig farm uses the IC + SBBR + UASB combined process to treat pig-raising wastewater. The effluent from the SBBR pool flows into the UASB reactor and is treated by UASB to further remove pollutants such as COD, ammonia nitrogen and nitrite nitrogen in the wastewater. After the wastewater is treated, the effluent quality meets the requirements of GB 18596-2001 "Pollutant Discharge Standard for Livestock and Poultry Farming Industry", UASB effluent COD 100 mg / L, NH 3 -N 40~80mg / L.

[0017] The specific implementation process is as follows:

[0018] (1) After the pig farm wastewater is collected by the sewage collection pipe network, it is intercepted by the mechanical grille to remove large particles of pollutants and floating objects in the sewage, and the wastewater enters the IC reactor.

[0019] (2) Wastewater enters the IC reactor, undergoes high-efficiency anaerobic digestion, after removing most of the COD to obtain biogas, adjusts the water quality and volum...

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Abstract

The invention discloses a novel up-flow anaerobic sludge blanket (UASB) for treating wastewater of a pig farm, which comprises a UASB reactor main body, a raw water tank, a heating and heat insulation system, a control cabinet, a water inlet system, a reflux system and the like. A bio-film filler fixed bracket is arranged in the reactor, a bio-film filler is arranged on the filler fixed bracket, and the operation of the whole reactor is controlled through an electromagnetic metering pump. The reactor has the characteristic of simultaneously degrading organic substances and ammonia nitrogen, and is suitable for automatic control of the whole process.

Description

technical field [0001] The invention relates to environmental engineering technical equipment, in particular to a UASB (Up-flow Anaerobic Sludge Bed, hereinafter referred to as UASB) reactor for synchronous anaerobic ammonium oxidation methanation and denitrification of pig farm wastewater . Background technique [0002] Livestock and poultry breeding wastewater, especially large-scale pig farming wastewater, has become the main source of pollution in many areas of our country. At present, most pig farms use solid-liquid separation-anaerobic-aerobic treatment of fecal wastewater. UASB consists of three parts: sludge reaction zone, gas-liquid-solid three-phase separator (including sedimentation zone) and air chamber. A large amount of anaerobic sludge remains in the bottom reaction zone, and the sludge with good sedimentation and coagulation properties forms a sludge layer in the lower part. The sewage to be treated flows from the bottom of the anaerobic sludge bed and is ...

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Application Information

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IPC IPC(8): C02F3/28C02F9/14
Inventor 万金保余敏
Owner NANCHANG UNIV
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