Agricultural waste-composting treatment method

A technology of agricultural waste and treatment method, which is applied in the field of composting agricultural waste, can solve the problems of less research on the pre-treatment of compost materials and long treatment time, so as to improve the utilization rate of equipment, simplify the treatment process, and solve the problem of environmental pollution Effect

Inactive Publication Date: 2010-10-06
杨春和
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many researches on the composting process at home and abroad, but there are few studies on the pretreatment of composting materials, so that for agricultural wastes containing more plant fibers, no matter what kind of composting process, it takes a relatively long processing time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Steam explosion treatment of agricultural waste

[0033] For crop straw, chicken manure, etc., the dosage ratio is determined according to its C / N ratio of 30:1. Generally, the C / N ratio of rice straw and wheat straw is 80:1, and that of chicken manure is 10:1. If the total weight of raw materials is 100kg, the amount of straw is 75kg, and the amount of chicken manure is 25kg. The raw materials need to be crushed to about 3cm, put into the steam explosion tank, and then high-pressure steam is introduced to make the pressure in the steam explosion tank reach 1.0Mpa, and the pressure is maintained for 9 minutes, and then the pressure in the steam explosion tank is quickly released, and the raw materials are released to normal pressure In the container, the agricultural waste raw material after steam explosion treatment is obtained.

[0034] 2. Composting steam explosion raw materials

[0035]Mix the steam explosion material evenly, and adjust the water content to abo...

Embodiment 2

[0037] 1. Steam explosion treatment of agricultural waste

[0038] Crop stalks, livestock and poultry manure, etc., are determined according to the C / N ratio of 25:1. Generally, the C / N ratio of corn stalks is 60:1, chicken manure is 10:1, and cow manure is 20:1. : About 1. The raw materials need to be crushed to about 3cm, put into the steam explosion tank, and then high-pressure steam is introduced to make the pressure in the steam explosion tank reach the range of 1.5Mpa, and the pressure is maintained for 6 minutes, and then the pressure in the steam explosion tank is quickly released to release the raw materials to normal In the pressure vessel, the raw material of agricultural waste after steam explosion treatment is obtained.

[0039] 2. Composting steam explosion raw materials

[0040] Mix the steam explosion material evenly, and adjust the water content to about 55%. Due to the high temperature and high pressure during the steam explosion process, it is necessary to...

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PUM

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Abstract

The invention relates to an agricultural waste-composting treatment method taking stream explosion method for pretreatment. The method comprises: proportioning materials in a C/N ratio of 20:1-30:1; determining the appropriate dosage of crops straw and livestock/poultry excrement; mixing the determined raw materials well; performing stream explosion pretreatment; adjusting water content to be between 50 and 60 percent; and performing composting treatment for 25 to 28 days to obtain organic fertilizer rich in organic substances and nutrients. By utilizing a stream explosion technique to treat agricultural waste, the method has the advantages of effectively improving the biological conversion rate of aerobic or anaerobic treatment and shortening treatment time, thereby achieving the aims of improving equipment utilization rate, reducing operation cost, solving the problem of environmental pollution and bringing social and economic benefits.

Description

technical field [0001] The invention relates to the treatment and utilization of agricultural waste, in particular to a process method for composting agricultural waste. Background technique [0002] Agricultural waste refers to the organic substances discarded during the entire agricultural production process, mainly including: plant residue waste generated in the agricultural and forestry production process; animal residue waste generated in the animal husbandry and fishery production process; agricultural processing process Residual waste from processing and domestic waste from rural and urban areas. In terms of total amount and composition, it mainly includes crop straw and livestock and poultry waste. The processing and utilization of agricultural waste has always been an important topic in the field of pollution prevention and resource utilization in recent years. [0003] Straw not only generally has high calorific value and crude fiber, but also contains rich organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F3/00
CPCY02A40/20Y02W30/40
Inventor 杨春和
Owner 杨春和
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