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Method for comprehensively cleaning excrement and sewage in ranch type dry-excrement-collection dairy farm with more than 3000 livestock on hand

A technology of comprehensive treatment and dry cleaning of manure, which is applied in the field of comprehensive treatment of manure and sewage in dairy farms with more than 3,000 cows, can solve the problems of less breeding wastewater and environmental pollution, and achieve simple operation and maintenance and a wide range of applications , Accelerate the effect of anaerobic digestion reaction processing speed

Inactive Publication Date: 2015-07-01
AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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AI Technical Summary

Problems solved by technology

The vast majority of farms, especially small and medium-sized farms, mainly use the dry manure cleaning process. Compared with the manure production and discharge of water flushing dairy farms, the manure is mainly collected in the form of solids. The amount of aquaculture wastewater is relatively small, and the organic matter content in the wastewater is low. However, if it is not treated and discharged randomly, it will also cause serious environmental pollution. It is necessary to develop an economical, applicable and targeted manure treatment process. is the key problem to be solved in the present invention

Method used

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  • Method for comprehensively cleaning excrement and sewage in ranch type dry-excrement-collection dairy farm with more than 3000 livestock on hand
  • Method for comprehensively cleaning excrement and sewage in ranch type dry-excrement-collection dairy farm with more than 3000 livestock on hand

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Embodiment 1

[0039] A method for comprehensively treating manure and sewage in dairy farms with more than 3,000 cows in stock, including the steps in the following sequence:

[0040] 1) The solid feces in the cattle house and the cattle playground are treated with a dry manure cleaning process, the feces in the cattle house are cleaned with a shovel and a scraper, and the cattle playground is manually cleaned;

[0041] 2) The treated solid feces can be directly sold as fertilizer, or used as raw materials for organic fertilizer or decomposed fertilizer, and can also be used as a substrate for earthworm breeding or edible fungus cultivation;

[0042] 3) The summer spraying water and cow urine in the cowshed are filtered through the grid and then flow into the adjustment tank. After the wastewater in the adjustment tank reaches 60%, it is pumped into the screw extrusion solid-liquid separator for solid-liquid separation, and the separated solid Enter the manure shed, and the sewage enters th...

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Abstract

The invention provides a method for comprehensively cleaning excrement and sewage in ranch type dry-excrement-collection dairy farm with more than 3000 livestock on hand. The method comprises a dry-excrement-collection processing technology of solid excrement; solid and liquid of the sewage are separated from each other after the sewage passing through a regulating pool, and the liquid enters a homogenizing pool; anaerobic reaction of the sewage is carried out in a USR (Upflow Solid Reactor) or a UASB (Upflow Anaerobic Sludge Blanket) reactor, and produced methane is purified and stored for use; aeration treatment of the sewage is carried out in an aerobic tank; the sewage after being processed is used in planting industries or is backwashed to milking parlours. The method for comprehensively cleaning the excrement and the sewage integrates separate collection and separate treatment of the excrement and the sewage, has seasonal adaptability and a certain storing and deeply purifying capability, and realizes combination of planting and breeding.

Description

technical field [0001] The invention relates to a technology for comprehensive treatment of manure in dairy farms, in particular to a method for comprehensive treatment of manure in dairy farms with more than 3,000 cows. Background technique [0002] According to the Ministry of Agriculture's "National Advantageous Agricultural Products Regional Planning and Layout 2008-2015" statistics, at present, my country's per capita dairy product consumption is only equivalent to 1 / 4 of the world's average level and 1 / 12 of that of developed countries, and there is broad room for development. In recent years, with the increase in the demand for dairy products and driven by the cow-dominant areas, my country's dairy industry has continued to develop at a high speed, and a number of star enterprises and well-known brands have emerged, achieving remarkable results. According to statistics from the Animal Husbandry Yearbook, the national breeding volume in 2012 was 14.4 million head, and ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C05F3/00
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 杨鹏张克强梁军锋
Owner AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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