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A kind of high-concentration livestock and poultry breeding wastewater treatment method

A technology for livestock and poultry breeding wastewater and treatment methods, applied in the field of wastewater biological treatment, can solve problems such as C/N ratio imbalance, unsatisfactory denitrification effect, insufficient denitrification capacity, etc., to avoid poisoning and impact, and save carbon sources and aeration oxygen supply, to solve the effect of denitrification carbon source shortage

Active Publication Date: 2021-06-15
泰州学院
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Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the present invention aims to solve the following problems such as unbalanced C / N ratio, insufficient aerobic post-treatment denitrification ability, and unsatisfactory denitrification effect in the existing livestock and poultry wastewater treatment technology, and provides a PABR Methanogenic denitrification coupled with MSBR short-cut nitrification and denitrification double denitrification and carbon removal method to treat livestock and poultry breeding wastewater

Method used

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  • A kind of high-concentration livestock and poultry breeding wastewater treatment method
  • A kind of high-concentration livestock and poultry breeding wastewater treatment method
  • A kind of high-concentration livestock and poultry breeding wastewater treatment method

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example

[0059] (a) Take the wastewater from a pig breeding factory in Jiangsu, filter it through a 1mm sieve, and then pass it through a lift pump to the water inlet adjustment tank, which is used to ensure the stability of the feed water quality of livestock and poultry wastewater;

[0060] After filtration, the main water quality parameter value COD 18930mg·L -1 , NH 4 + The concentration is 860mg·L -1 , the concentration of nitrite nitrogen is 25mg·L -1 , Nitrate 45mg·L -1 , The effluent-reflux ratio is 1:1.

[0061] (b) The wastewater enters the PABR reactor through the influent adjustment tank for denitrification and methane production, and the PABR reactor is pre-inoculated with domesticated and mature anaerobic fermentation tank sludge; the PABR reactor is a cylindrical baffled anaerobic The reactor consists of four parts A, B, C and D, each part is equipped with baffles, and the functions of each part are as follows:

[0062] Pool A: On the one hand, denitrification and ...

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Abstract

The invention discloses a method for treating high-concentration livestock and poultry breeding wastewater. The PABR reactor is used for denitrification and methane treatment, mainly to remove the organic matter in the livestock wastewater and the nitrate nitrogen of the reflux liquid; and then the MSBR reaction tank is used for short-range nitrification and denitrification treatment. The present invention uses PABR denitrification to produce methanogenesis coupled with MSBR short-range nitrification and denitrification to treat high-concentration livestock and poultry breeding wastewater, so that different microbial populations can better play their respective functions in the PABR and MSBR reactors, and can realize the organic matter of livestock and poultry breeding wastewater , Efficient removal of ammonia nitrogen and nitrate nitrogen.

Description

technical field [0001] The invention belongs to the technical field of wastewater biological treatment, and relates to a short-range nitrification and denitrification treatment process for livestock and poultry breeding wastewater using a PABR (Periodic Anaerobic Baffled Reactor) reactor to conduct denitrification to produce methane coupled with MSBR (Modified Sequencing Batch Reactor Activated Sludge Process). Livestock manure wastewater COD, ammonia nitrogen, NO x Synchronous efficient removal of -N. Background technique [0002] With the improvement of people's living standards in our country, economic development and agricultural structure adjustment, intensive and large-scale livestock and poultry breeding has gradually replaced traditional free-range and small-scale livestock and poultry breeding, and the number of large-scale breeding has increased rapidly. At the same time, the environmental problems caused by livestock and poultry manure are becoming more and more p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/16C02F101/30C02F103/20
CPCC02F3/1263C02F3/284C02F9/00C02F2101/16C02F2101/30C02F2103/20C02F2209/02C02F2209/06C02F2209/07C02F2209/14C02F2209/15
Inventor 何清明陈海龙王豪高新星燕宇
Owner 泰州学院
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