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Pig raising waste treatment and comprehensive utilization method

A technology of waste and inoculation pool is applied in the field of pig waste treatment and comprehensive utilization, which can solve the problem that pig waste disposal is easily affected by external conditions.

Pending Publication Date: 2021-05-07
河南芮耐环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for the treatment and comprehensive utilization of pig raising waste to solve the problem that the existing pig raising waste processing is easily affected by external conditions

Method used

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  • Pig raising waste treatment and comprehensive utilization method

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Effect test

Embodiment 1

[0028] This embodiment provides a method for the treatment and comprehensive utilization of pig raising waste, comprising the following steps:

[0029] (1) Get the pig raising waste that contains excrement, urine and sewage, add in the high-temperature anaerobic tank, in order to prevent the agglomeration and precipitation of solid matter in the reactor, the temperature is controlled at 50-55 ° C, and through 25 days of full reaction; The pig waste does not undergo solid-liquid separation. After being completely mixed, it directly enters the high-temperature anaerobic reactor to make full use of a large amount of organic matter in the feces, balance the carbon-nitrogen ratio of the biochemical reaction, and improve the biodegradability of the mixture. At this time, the solids in the mixture High content of pollutants, high concentration of pollutants, large gas production, can greatly reduce the content of organic matter, and effectively kill pathogenic bacteria and insect eggs...

Embodiment 2

[0039] This embodiment provides a method for the treatment and comprehensive utilization of pig raising waste, comprising the following steps:

[0040] (1) Take the pig-raising waste containing feces, urine and sewage, add it to the high-temperature anaerobic tank, and control the temperature at 55 ° C. After 15 days of full reaction; the anaerobic microorganisms in the high-temperature anaerobic reactor convert the organic matter in the water into Biogas, the generated biogas is passed into the biogas storage tank for storage, and the heat generated in the high-temperature anaerobic tank is used for the generator to generate electricity.

[0041] (2) The mixture output from the high-temperature anaerobic tank enters the sedimentation tank for solid-liquid separation; the separated sludge is an inorganic residue rich in nitrogen and phosphorus, and the nitrogen in the sludge is 7.28g / kg, phosphorus 12.88g / kg, Potassium is 8.88g / kg. It enters the sludge thickening tank to conce...

Embodiment 3

[0046] This embodiment provides a method for the treatment and comprehensive utilization of pig raising waste, comprising the following steps:

[0047] (1) Take the pig-raising waste containing feces, urine and sewage, add it to the high-temperature anaerobic tank, control the temperature at 50 ° C, and fully react through 30 days; the anaerobic microorganisms in the high-temperature anaerobic reactor convert the organic matter in the water into Biogas, the generated biogas is passed into the biogas storage tank for storage, and the heat generated in the high-temperature anaerobic tank is used for the generator to generate electricity.

[0048] (2) The mixture output from the high-temperature anaerobic tank enters the sedimentation tank for solid-liquid separation; the separated sludge is an inorganic residue rich in nitrogen and phosphorus, and the nitrogen in the sludge is 7.31g / kg, phosphorus 12.54g / kg, Potassium is 8.68g / kg. It enters the sludge thickening tank to concentr...

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Abstract

The invention discloses a pig raising waste treatment and comprehensive utilization method, and the method comprises the following steps: taking pig raising waste containing manure, urine and sewage, adding the pig raising waste into a high-temperature anaerobic tank, controlling the temperature at 50-55 DEG C, and fully reacting for 15-30 days; enabling a mixture output from the high-temperature anaerobic tank to enter a sedimentation tank for solid-liquid separation; enabling liquid separated from the sedimentation tank to enter an inoculation tank, enabling bacillus to be inoculated into the inoculation tank, and performing inoculation and mixing; discharging the liquid into a biochemical pool for biochemical treatment; enabling the sewage subjected to biochemical treatment to enter an MBR membrane tank, and adopting an MBR membrane for mud-water separation, wherein effluent can be discharged up to the standard or blended with liquid fertilizer to be reused for irrigation of vegetables, agriculture and greening. The manure and urine are completely mixed and subjected to high-temperature anaerobic fermentation, the carbon nitrogen ratio is more balanced, and the treatment efficiency is higher; the biochemical process is higher in adaptability and can endure severe environments such as high ammonia nitrogen and high salt in the breeding wastewater.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for treating and comprehensively utilizing pig raising waste. Background technique [0002] In recent years, due to the rapid development of my country's economy, the consumption of pork has increased year by year, making the current number of live pigs in my country large, and pig raising wastewater is a typical wastewater containing high COD, ammonia nitrogen and phosphorus. The resulting amount of pig-raising wastewater is also huge, aggravating the eutrophication of the surrounding water bodies, seriously affecting the natural production capacity of the soil, and destroying the original natural ecological environment. [0003] The composition of pig manure is relatively complex, including protein, fat, organic acid, cellulose, hemicellulose and inorganic salts. ~0.45%, other 2.05%; urine composition is relatively simple, containing urea, uric acid, hippuric...

Claims

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Application Information

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IPC IPC(8): C05F3/06C05F3/00C05G5/20C02F11/04C02F3/12
CPCC05F3/06C05F3/00C05G5/20C02F11/04C02F3/1268C02F2103/20Y02W10/10Y02A40/20
Inventor 李双志王文昭
Owner 河南芮耐环境科技有限公司
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