Method for preventing and controlling non-point source pollution by comprehensive utilization of farming waste

A technology for breeding waste and non-point source pollution, applied in the field of non-point source pollution control, can solve problems such as unsatisfactory biogas, inability to solve manure water and other problems, and achieve the effect of block processing speed and short fermentation time.

Inactive Publication Date: 2019-08-02
湖南慧谷农业生态研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used aquaculture waste treatment facilities are generally biogas projects and organic fertilizer production, but the current promotion of biogas is not ideal, and organic fertilizer production cannot solve the problem of manure. In addition, aquaculture waste is also a resource that should be properly utilized. Therefore, there is an urgent need for a simple and effective comprehensive utilization method of aquaculture waste to solve the pollution problem caused by aquaculture waste and to achieve economic benefits in resource utilization and achieve a win-win situation

Method used

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  • Method for preventing and controlling non-point source pollution by comprehensive utilization of farming waste

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Experimental program
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Effect test

Embodiment 1

[0022] The invention provides a method for the comprehensive utilization of breeding waste to prevent and control non-point source pollution, which comprises the following steps:

[0023] Step 1, passing the feces into the fermenter, adding water to adjust so that the solid content is 30%, and sterilizing at a temperature of 120° C. for 45 minutes;

[0024] Step 2, adding 10% rice straw powder and 4% bacterial agent to the sterilized dung water for liquid fermentation, wherein the bacterial agent is the EM microbial agent for composting produced by Hunan Taigu Ecological Engineering Co., Ltd. The number of effective viable bacteria is ≥8 billion cfu / g, and the bacterial agent contains a variety of functional microorganisms, which can produce protease, amylase, cellulase, ligninase, etc., and are used for the degradation of various raw materials;

[0025] Step 3: After fermentation, the dung is filtered, the filter residue is used for rice and shrimp co-cropping, and the filtra...

Embodiment 2

[0028] The invention provides a method for the comprehensive utilization of breeding waste to prevent and control non-point source pollution, which comprises the following steps:

[0029] Step 1: Pass the feces into the fermenter, add water to adjust, so that the solid content is 20%, and sterilize for 45 minutes at a temperature of 100°C;

[0030] Step 2, adding 2% glucose and 2% bacterial agent to the sterilized dung water to carry out liquid fermentation, wherein the bacterial agent is the EM bacterial agent for compost produced by Hunan Taigu Ecological Engineering Co., Ltd., which effectively activates The number of bacteria is ≥ 8 billion cfu / g. The bacteria agent contains a variety of functional microorganisms, which can produce protease, amylase, cellulase, ligninase, etc., and are used for the degradation of various raw materials;

[0031] Step 3: After fermentation, the dung is filtered, the filter residue is used for rice and crab co-culture, and the filtrate is dis...

Embodiment 3

[0034] The invention provides a method for the comprehensive utilization of breeding waste to prevent and control non-point source pollution, which comprises the following steps:

[0035] Step 1: Feed water into the fermenter, add water to adjust to make the solid content 10%, and sterilize at 140°C for 30 minutes;

[0036] Step 2, add 2% corn flour and 2% bacterial agent in the sterilized dung water, carry out liquid fermentation, wherein said bacterial agent is the EM microbial agent of the compost that Hunan Taigu Ecological Engineering Co., Ltd. produces, effectively The number of viable bacteria is ≥ 8 billion cfu / g. The bacterial agent contains a variety of functional microorganisms, which can produce protease, amylase, cellulase, ligninase, etc., and are used for the degradation of various raw materials;

[0037] Step 3: After fermentation, the dung is filtered, the filter residue is used for rice and crab co-culture, and the filtrate is discharged after being treated i...

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Abstract

The invention provides a method for preventing and controlling non-point source pollution by comprehensive utilization of farming waste, and belongs to the field of study for agricultural non-point source pollution. The method comprises following steps: 1), liquid dung is introduced into a fermentation tank and subjected to high-temperature sterilization; 2), nutrient substances are added to the sterilized liquid dung, and liquid fermentation is performed; 3), filtration is performed after fermentation, filter residues are applied to aquaculture, and filtrate is discharged after being treatedby constructed wetlands. According to the method, harmful microbes and parasites in the liquid dung can be completely killed by the high-temperature sterilization, macromolecular protein and other organic matter in the liquid dung can be decomposed into small-molecular components by the liquid fermentation, and furthermore, microbial thalli are formed and can be used as feed for the aquaculture; the constructed wetlands are constructed by adjusting planting structure, and nutrients in the liquid dung are absorbed. Through multiple treatment, harm of pollutants to the environment is removed, the nutrient substances in the pollutants are sufficiently utilized, so that economic benefit is obtained, and the all-win situation is realized.

Description

technical field [0001] The invention relates to the technical field of non-point source pollution control, in particular to a method for comprehensive utilization of breeding waste to prevent and control non-point source pollution. Background technique [0002] At present, the rural aquaculture industry is distributed in a scattered manner, and there are few large-scale aquaculture. Generally, the aquaculture waste is not treated, and the pens are often cleaned by washing. An important source of organic matter, N, and P. The total amount of livestock and poultry manure produced in the country is nearly 4 billion tons every year, and the chemical oxygen demand of livestock and poultry farming emissions reaches 12.68 million tons, which is an important cause of agricultural non-point source pollution. [0003] At present, the commonly used aquaculture waste treatment facilities are generally biogas projects and organic fertilizer production, but the current promotion of bioga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C05G3/04C05F3/00C02F103/20C05G3/80
CPCC02F9/00C05F3/00C02F1/001C02F1/02C02F1/68C02F3/34C02F2103/20C05G3/80Y02A40/20
Inventor 谭石勇谭武贵文亚雄郭帅
Owner 湖南慧谷农业生态研究院有限公司
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