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Pig manure deodorizing method

A technology of pig manure and granules, which is applied in chemical instruments and methods, special treatment targets, water/sludge/sewage treatment, etc., can solve the problems of poor deodorization effect of pig manure, achieve remarkable deodorization effect, suppress emissions, The effect of high humic acid content

Inactive Publication Date: 2019-07-26
中国农业大学烟台研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of poor deodorizing effect of existing pig manure, the present invention provides a method for deodorizing pig manure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A pig manure deodorization method, the method is: after the lignite is pulverized, the particles with a particle size of 2-3 mm are screened, mixed with pig manure at a volume ratio of 1:4, sealed and stored at 0°C for 7 days, and the process is completed.

[0014] The removal rates of ammonia nitrogen, hydrogen sulfide and sulfur dioxide in pig manure in this example were 54.80%, 38.20% and 5.30%, respectively.

Embodiment 2

[0016] A method for deodorizing pig manure. The method comprises: pulverizing lignite, screening particles with a particle size of 2-3mm, mixing them with pig manure at a volume ratio of 1:5, and storing them airtightly at 16°C for 6 days, and the process is completed.

[0017] The removal rates of ammonia nitrogen, hydrogen sulfide and sulfur dioxide in pig manure in this example were 61.10%, 57.50% and 6.62%, respectively.

Embodiment 3

[0019] A pig manure deodorization method, the method is: after lignite is pulverized, the particles with a particle size of 2-3mm are screened, mixed evenly with pig manure at a volume ratio of 1:6, sealed and stored at 25°C for 4 days, and the process is completed.

[0020] The removal rates of ammonia nitrogen, hydrogen sulfide and sulfur dioxide in pig manure in this example were 64.38%, 51.90% and 17.48%, respectively.

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Abstract

The invention discloses a pig manure deodorizing method. The method specifically comprises the following steps: after smashing brown coal, screening particles of which a particle size is 2-3 mm, uniformly mixing with pig manure, and storing airtightly. The beneficial effect is that the pig manure deodorizing method is capable of utilizing the physical adsorption effect of the brown coal, and improving main components for generating foul smell, such as sulfur dioxide, hydrogen sulfide and ammonia nitrogen, released from the pig manure, at the same time humic acid content of the brown coal is high, feces can be used for agricultural field return after adsorption treatment is performed on the feces, and the humic acid content of nutrients in a fertilizer needed by crops is increased. The brown coal is used for performing feces deodorization, and the deodorization and purification effects of the feces can be achieved, thereby a discharge amount of a malodorous gas is effectively inhibited,and a discharge period is shortened. Raw materials used in the pig manure deodorizing method are environment-friendly and easy to obtain, high in performance cost ratio, and apparent in deodorizationeffect.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a method for deodorizing pig manure. Background technique [0002] The intensive and large-scale rapid development of my country's modern pig raising industry guarantees the supply of pork products in the market, but the problem of manure and sewage is shackles on the sustainable development of agriculture, and the odor caused by chaotic dumping of pig manure is harmful Gas pollution is particularly significant. Due to the incomplete absorption of nutrients in the diet by pigs and the discharge of E. coli in pigs, pig manure has a foul smell and produces harmful gases such as ammonia and hydrogen sulfide. At present, many pig farms discharge a large amount of pig manure into rivers and lakes, resulting in excessive nitrogen and sulfur content in the water, which not only accelerates the deterioration of water environment quality, causes eutrophication, but also brings grea...

Claims

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Application Information

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IPC IPC(8): C02F11/00C02F103/20
CPCC02F11/00C02F2103/20C02F2303/02
Inventor 曲威董仁杰杨守军
Owner 中国农业大学烟台研究院
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