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Treatment method of livestock and poultry wastewater

A treatment method and wastewater technology, which is applied in animal husbandry wastewater treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of long treatment time, difficult management, and effluent water quality not up to sewage discharge Standards and other issues

Active Publication Date: 2018-11-30
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the anaerobic treatment method takes a long time and is difficult to manage. The removal effect on COD and suspended solids is obvious, but the removal effect on ammonia nitrogen is very poor. foul smelling, toxic H 2 S gas, polluting the atmosphere

Method used

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  • Treatment method of livestock and poultry wastewater
  • Treatment method of livestock and poultry wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0039] The initial content of COD in livestock and poultry wastewater is 8000mg / L, the initial content of ammonia nitrogen is 600mg / L, and the initial content of SS is 200mg / L;

[0040] The livestock wastewater is initially treated through the wetland. The wetland is an artificially constructed pool. The intermediate species are aquatic plants such as water hyacinth and water peanut that can efficiently absorb and utilize organic matter, nitrogen, and phosphorus. The hydraulic power of livestock and poultry wastewater in the wetland The residence time is 10h;

[0041] After passing through the wetland, the livestock wastewater enters the anaerobic-aerobic integrated membrane bioreactor (hereinafter referred to as AOMBR) for anaerobic-aerobic cycle treatment. The membrane filaments filled in the reactor are hollow fiber membranes containing quinone groups;

[0042] The sludge concentration in the AOMBR reactor is 7-8g / L; AOMBR operates according to the following parameters: the...

Embodiment 2

[0048] The initial content of COD in livestock and poultry wastewater is 12000mg / L, the initial content of ammonia nitrogen is 1300mg / L, and the initial content of SS is 800mg / L;

[0049] The livestock wastewater is initially treated through the wetland. The wetland is an artificially constructed pool. The intermediate species are aquatic plants such as water hyacinth and water peanut that can efficiently absorb and utilize organic matter, nitrogen, and phosphorus. The hydraulic power of livestock and poultry wastewater in the wetland The residence time is 12h;

[0050] After passing through the wetland, the livestock wastewater enters the anaerobic-aerobic integrated membrane bioreactor (hereinafter referred to as AOMBR) for anaerobic-aerobic cycle treatment. The membrane filaments filled in the reactor are hollow fiber membranes containing quinone groups;

[0051] The sludge concentration in the AOMBR reactor is 7-8g / L; AOMBR operates according to the following parameters: t...

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Abstract

The invention provides a treatment method of livestock and poultry wastewater. The treatment method comprises the following steps: carrying out primary treatment on the livestock and poultry wastewater through a wetland, wherein aquatic plants are planted in the wetland; conveying the wastewater subjected to the primary treatment into a membrane bioreactor and carrying out anaerobic-aerobic circulating treatment, wherein the membrane bioreactor is internally filled with a hollow fiber membrane containing quinonyl. According to the treatment method of the livestock and poultry wastewater, provided by the invention, firstly, the wetland is used for carrying out the primary treatment on the livestock and poultry wastewater, and organic pollutants, nitrogen, phosphorus and the like in the livestock and poultry wastewater are removed primarily; then the membrane bioreactor is used for carrying out the anaerobic-aerobic circulating treatment on the wastewater subjected to the primary treatment; the membrane bioreactor is internally filled with the hollow fiber membrane containing the quinonyl, the quinonyl in the fiber membrane can be used for accelerating a reduction process of the nitrogen and a denitrification speed under an anaerobic condition is improved, so that the efficient denitrification aim is realized, and the aim of finishing COD (Chemical Oxygen Demand) removal and denitrification at the same time is realized.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment method for livestock and poultry wastewater. Background technique [0002] In recent years, with the economic growth and the improvement of people's living standards, the poultry breeding industry based on the large-scale breeding model has developed rapidly. However, the development of livestock and poultry farming has also brought a series of environmental problems. The wastewater produced by large-scale livestock and poultry breeding sites is relatively large and concentrated, and has a high concentration of pollutants. If it is directly discharged into the environment or for agricultural use without treatment, it will cause serious pollution to the ecological environment and farmland, and cause serious damage to livestock, poultry, livestock products, and human beings. serious hazard to their own health. The composition of livestock and poultry bree...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F103/20
CPCC02F3/1268C02F3/2853C02F3/301C02F2103/20
Inventor 严滨
Owner XIAMEN UNIV OF TECH
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