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Method for preparing activated carbon from cow dung and straw

A technology for preparing activated carbon and activated carbon, applied in the field of activated carbon preparation, can solve problems such as cow dung pollution, and achieve the effects of sufficient straw source, low price and good application prospect

Inactive Publication Date: 2011-08-31
上海奶牛研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing activated carbon with cow dung and straw, which uses straw and a large amount of cow dung produced in the process of raising cattle as raw materials, and the straw improves resource utilization, saves costs and increases efficiency, Improve the basic fertility of cultivated land and sustainable agricultural development; the prepared activated carbon can be directly applied to actual needs, fundamentally solve the problem of environmental pollution caused by cow dung, turn waste into wealth, have significant economic and social benefits, and have good application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Put the cow dung into a square container, the ratio of the air-dried cow dung and straw mixed in the container is 1:0.11, put the container with cow dung and straw into the combustion pool for burning, the area of ​​the combustion pool is 20m2 2 At a depth of 80cm, air-dried cow dung and straw are mixed and burned in the combustion pool for 10 days, and the temperature is controlled at 400°C to obtain activated carbon with a combustion rate of 85%.

Embodiment 2

[0019] Put cow dung into a cylindrical container. The ratio of air-dried cow dung and straw in the container is 1:0.03. Put the container with cow dung and straw into the combustion pool for burning. The area of ​​the combustion pool is 10m 2 At a depth of about 40cm, air-dried cow dung mixed with straw is burned in a combustion pool for 7 days, and the temperature is controlled at 300°C to obtain activated carbon with a combustion rate of 80%.

Embodiment 3

[0021] Put the cow dung into a rectangular container. The ratio of the air-dried cow dung and straw in the container is 1:0.4. Put the container with cow dung and straw into the burning pool for burning. The area of ​​the burning pool is 30m 2 At a depth of 200cm, air-dried cow dung and straw are mixed and burned in the combustion pool for 20 days, and the temperature is controlled at 600°C to obtain activated carbon with a combustion rate of 70%.

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PUM

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Abstract

The invention relates to a method for preparing activated carbon from cow dung and straw. The method comprises the following steps of: putting cow dung in a container, adding straw, wherein the mass ratio of the straw to the cow dung is (1:0.03)-(1:0.4), and putting the container into a combustion pool, and combusting together to obtain the active carbon. In the method, straw and a large amount of cow dung produced in the cow culturing process are used as raw materials, and the straw improves the resource utilization rate, saves cost and improves efficiency, and improves the land base soil fertility and agricultural sustainable development; and the prepared activated carbon can be directly applied to actual requirements, and the method solves the problems of pollution of the cow dung to environment fundamentally, turns wastes into useful things, has obvious economic benefit and social benefit, and has good application prospect.

Description

technical field [0001] The invention belongs to the field of active carbon preparation, in particular to a method for preparing active carbon with cow dung and straw. Background technique [0002] The pollution caused by feces and urine from dairy farming has attracted the attention of the government, farm owners, pollution control researchers and designers. Different treatment processes have been developed successively, and various treatment projects have been established, mainly including field return mode, natural Processing mode and industrial processing mode. However, different treatment modes have different effects on factors such as the scale of breeding, the natural environment of the farm, and economic conditions. At present, most of the large-scale dairy farms in my country are built in areas far from large cities, and the scale of breeding is gradually expanding. Therefore, in the treatment of small and medium-scale farm feces and sewage, priority should be given...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/08
Inventor 张克春徐晓明黄晓风徐国忠
Owner 上海奶牛研究所有限公司