Pig manure biological treatment process and utilization method

A technology of biological treatment and feces treatment, applied in the field of pig manure biological treatment process and utilization, can solve the problem that pig manure cannot be fully treated, and achieve the effect of reasonable structure design and pollution reduction

Pending Publication Date: 2020-11-03
GUANGXI UNIV
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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 pig manure biological treatment process and utilization method to solve the technical problem that pig manure cannot be fully treated in the prior art

Method used

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  • Pig manure biological treatment process and utilization method
  • Pig manure biological treatment process and utilization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of pig manure biological treatment process, comprises the following steps:

[0028] S1: Put the pig manure into the manure treatment tank. The pig manure first passes through the debris grid 1 to filter out large debris, and then enters the manure concentration tank 2 to further precipitate impurities. When the fermentation tank 3 is full, add weight from the storage tank 6 0.1% by weight of pig manure compound bacterial agent, 2% by weight of pig manure modifier and 6% by weight of pig manure additives, open the agitator 7 and stir for 2 hours to mix evenly, then ferment at 25 ° C for 48 hours to keep the fermented product The water content of the pig manure is 50%, and the fermented product is stirred for 30 minutes every 12 hours; the temperature is raised, and the fermented pig manure is fermented at 28°C for 60 hours. The fertilizer delivery pipe 9 enters the liquid fertilizer collection tank 5 to obtain liquid and solid fermented pig manure fertilizer;

[...

Embodiment 2

[0035] A kind of pig manure biological treatment process, comprises the following steps:

[0036] S1: Put the pig manure into the manure treatment tank. The pig manure first passes through the debris grid 1 to filter out large debris, and then enters the manure concentration tank 2 to further precipitate impurities. When the fermentation tank 3 is full, add weight from the storage tank 6 0.4% by weight of pig manure compound bacterial agent, 4% by weight of pig manure modifier and 11% by weight of pig manure additives, open the agitator 7 and stir for 5 hours to mix evenly, and then ferment at 29 ° C for 72 hours to keep the fermented product The water content of the pig manure is 70%, and the fermented product is stirred for 60 minutes every 12 hours; the temperature is raised, and the fermented pig manure is fermented for 96 hours at 35°C. The fermented pig manure enters the purification tank 4, and enters the solid-liquid separator 8 after removing harmful substances. The f...

Embodiment 3

[0043] A kind of pig manure biological treatment process, comprises the following steps:

[0044] S1: Put the pig manure into the manure treatment tank. The pig manure first passes through the debris grid 1 to filter out large debris, and then enters the manure concentration tank 2 to further precipitate impurities. When the fermentation tank 3 is full, add weight from the storage tank 6 0.36% of the weight of pig manure compound bacteria, modifier of 3.2% of the weight of pig manure and 8% of the weight of pig manure additives, open the agitator 7 and stir for 3 hours to mix evenly, then ferment at 27 ° C for 62 hours, keep the fermented product The water content of the pig manure is 63%, and the fermented product is stirred for 45 minutes every 12 hours; the temperature is increased, and the fermented pig manure is fermented for 72 hours at 33°C. The fermented pig manure enters the purification tank 4, and enters the solid-liquid separator 8 after removing harmful substances....

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Abstract

The invention discloses a pig manure biological treatment process and a utilization method, and belongs to the field of manure treatment. The treatment method disclosed by the invention comprises thefollowing steps: putting pig manure into a manure treatment tank, filtering out large impurities by virtue of an impurity grid, feeding the pig manure into a manure concentration tank to precipitate impurities, and adding a complex microbial inoculant which accounts for 0.1-0.4% of the weight of the pig manure, a modifier which accounts for 2-4% of the weight of the pig manure and an additive which accounts for 6-11% of the weight of the pig manure from a storage tank; starting a stirrer, stirring and uniformly mixing the mixture for 25 hours, fermenting the mixture at 25-29 DEG C for 48-72 hours, keeping the water content of the fermented product at 50-70%, and stirring the fermented product for 30-60 minutes every 12 hours; fermenting for 60-96 hours at the temperature of 28-35 DEG C, enabling the fermented pig manure to enter a purification tank, removing harmful substances, enabling the pig manure to enter a solid-liquid separator, and enabling liquid fertilizer to enter a liquid fertilizer collection tank through a liquid fertilizer conveying pipe, so as to obtain liquid and solid fermented pig manure fertilizer. According to the pig manure treatment process, pollution generated by a farm can be greatly reduced, the pig manure can be recycled by combining application of the solid fertilizer and the liquid fertilizer, and the pig manure treatment process conforms to the concept of environment-friendly development.

Description

technical field [0001] The invention relates to the field of manure treatment, in particular to a biological treatment process and utilization method of pig manure. Background technique [0002] In recent years, my country's large-scale and intensive livestock and poultry breeding industry has developed vigorously. Modern closed-scale large-scale breeding technology has promoted the development of my country's urban livestock and poultry breeding industry to high-quality and efficient development. The trend of increasing year by year has caused serious environmental pollution such as soil, water and air to the region. [0003] Black Soldier Fly, a saprophytic Soldier Fly insect, can feed on poultry manure and household garbage, and produce high-value animal protein feed. Because of its rapid reproduction, large biomass, wide feeding habits, high absorption and conversion rate, easy management Low feeding cost, good animal palatability and other characteristics, so as to carr...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F11/02C02F11/121C05G3/00C05G5/10C05G5/20C02F103/20
CPCC02F11/00C02F11/02C02F11/121C05G3/00C05G5/10C05G5/20C05B7/00C02F2103/20C05C9/00C05D1/02C05F3/00C05F11/08C05F17/10C05F17/80
Inventor 曾俊陆俊致梁琼李叶红黄世洋黄恒
Owner GUANGXI UNIV
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