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Sewage treatment system for pig farm

A technology for a sewage treatment system and a pig farm, which is applied in the field of pig breeding, can solve problems such as no system restoration method, and achieve the effects of realizing no waste water discharge and ecological circulation, low construction cost, and saving water in pig farms.

Inactive Publication Date: 2018-11-30
普定县阿宝农业发展有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] In the prior art, systems with ecological restoration functions such as constructed wetlands and plant filter beds have been applied to sewage treatment, but there is no overall and systematic restoration method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A pig farm sewage treatment system comprising:

[0026] Collect the raw water from the pig farm and enter the water collection tank, and then pump it into the hydrolysis acidification tank after passing through the filter screen to adjust the acidity and alkalinity of the separated liquid to be acidic; pump it into the biogas tank for fermentation, and the generated biogas enters the pig farm for use, and the biogas slurry is flocculated After sedimentation, it is separated from the bottom of the tank and sent to the bio-matrix tank; the bottom of the bio-matrix tank is filled with activated carbon layer, the amount of activated carbon added is 20kg / m2 and then covered with straw layer, the amount of rice straw added is 50kg / m2 for adsorption and degradation; the sewage is retained for 10 Tianhou is discharged into a multi-level aquatic plant ecological pool. The plants in the ecological pool use 100 plants / m2 of fox microalgae to breed small base shrimps, and degrade he...

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Abstract

The invention relates to a sewage treatment system for a pig farm, and relates to a device for purifying and recycling sewage of the pig farm. The sewage treatment system comprises seven equipment units, a water collection tank, a solid-liquid separation filter net, a hydrolytic acidification tank, a biogas tank, a biological matrix tank and a multi-stage aquatic plant ecological pool. After seven-stage treatment, the water quality accords with Control and Emission Standard of Pollutants for Livestock and Poultry Industry, and effects of simpleness, low cost and high-efficiency purification are obtained.

Description

technical field [0001] The invention belongs to the technical field of pig breeding, and in particular relates to a resource recycling process of pig manure in the breeding process. Background technique [0002] Pigs are the largest breeding species in the animal husbandry industry. Pig wastewater mainly includes urine and feces excreted by pigs in pig farms, wastewater from washing pig houses, and a small amount of production and domestic wastewater generated by workers during the pig breeding process. Pig wastewater is related to various factors such as pig farm scale, pig sex, feeding feed type, pig growth period, feeding method, manure cleaning method, feeding facilities, weather conditions, etc. Due to the breeding facilities, management methods and Production methods are different, and the amount of wastewater generated from pig farms and the pollution load of pig wastewater may vary greatly. [0003] Pig wastewater is mainly composed of urine, flushing water, domesti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/20C02F101/20
CPCC02F1/001C02F1/28C02F1/52C02F3/28C02F3/32C02F9/00C02F2101/20C02F2103/20
Inventor 文发祥
Owner 普定县阿宝农业发展有限公司
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