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High-concentration livestock and poultry breeding wastewater treatment method

A technology for livestock and poultry breeding wastewater and a treatment method, which is applied in the field of wastewater biological treatment, can solve the problems of insufficient denitrification capacity, unbalanced C/N ratio, unsatisfactory denitrification effect, etc., and achieves saving carbon sources and aeration and oxygen supply. amount, avoid poison and shock, and overcome the effect of insufficient alkalinity in the later stage

Active Publication Date: 2019-07-16
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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  • High-concentration livestock and poultry breeding wastewater treatment method
  • High-concentration livestock and poultry breeding wastewater treatment method
  • 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 25 mg·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 high-concentration livestock and poultry breeding wastewater treatment method. The denitrification methane production treatment is carried out by using a PABR reactor to mainly remove organic matters in the livestock and poultry wastewater and the nitrate nitrogen in a backflow liquid, and then the short-range nitrification denitrification treatment is carried out by using a MSBR reaction tank. According to the treatment method, the PABR denitrification methane production coupled with the MSBR short-range nitrification denitrification is utilized to treat the high-concentration livestock and poultry breeding wastewater, so that different microbial populations can better play respective functions in the PABR and MSBR reactors, and the efficient removal of the organic matters, ammonia nitrogen and nitrate nitrogen in the livestock and poultry breeding wastewater can be realized.

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 Applications(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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