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Treatment method for rice/wheat straw waste

A technology of rice straw and waste, which is applied in the field of waste treatment of rice straw, can solve the problems of affecting the growth of seedlings, cost increase, lack of straw microbial agents, etc., and achieves improved utilization rate, added value, and obvious economic benefits , the effect of important social significance

Active Publication Date: 2010-06-30
上海合庆火龙果科技开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the straw is returned to the field after the two wheats are harvested. After the rice is planted in a short period of time, the reduction potential of the paddy field soil is too strong, which affects the growth of the seedlings.
The second is that in recent years, the price of diesel oil has been continuously raised, and the implementation of straw crushing and returning to the field has caused cost increases, and farmers are not willing to continue to promote it.
The third is that there is a lack of methods and technologies for rapid decay of rice and wheat straw in the field, and there is also a lack of microbial agents for straw decay

Method used

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  • Treatment method for rice/wheat straw waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The ratio of compound biological bacteria (Bacillus subtilis, Clostridium and Rhizopus by weight ratio is 0.9:1:1.1)

[0024] Pour 1000Kg of rice and wheat straw waste into the mixing tank, add 300Kg of wet cow dung, stir evenly, adjust the water content to 68%, C / N=22:1; add 30Kg of complex biological bacteria and stir, then transfer to the fermentation workshop Main fermentation: turn compost when the temperature rises above 60°C, control the temperature in the range of 60°C to 70°C, transfer to after-ripening fermentation after 10 days of fermentation, after 8 days, the internal temperature of the compost is lower than 40°C, and the fermentation ends; Pulverizer pulverizes and sieves, obtains total nutrient is 6.7%, and organic matter is 620Kg of the finished product organic fertilizer of 48%.

Embodiment 2

[0026] The ratio of compound biological bacteria (Bacillus subtilis, Clostridium and Rhizopus by weight ratio is 1:1:1)

[0027] Pour 2000Kg of rice and wheat straw waste into the mixing tank, add 500Kg of wet cow dung, stir evenly, adjust the water content to about 70%, C / N=23:1; add 60Kg of complex biological bacteria and stir, then transfer to the fermentation workshop Main fermentation: turn compost when the temperature rises above 60°C, control the temperature in the range of 60°C to 70°C, and transfer to after-ripening fermentation after 12 days of fermentation. After 10 days, the internal temperature of the compost is lower than 40°C, and the fermentation ends; Pulverizer pulverizes and sieves, and obtains total nutrient is 6.5%, and organic matter is 1100Kg of finished product organic fertilizers of 47%.

Embodiment 3

[0029] The ratio of compound biological bacteria (Bacillus subtilis, Clostridium and Rhizopus by weight ratio is 1:1.1:0.9)

[0030] Pour 3000Kg of rice and wheat straw waste into the mixing tank, add 920Kg of wet cow dung, stir evenly, adjust the water content to 72%, C / N=21:1; add 45Kg of complex biological bacteria and stir, then transfer to the fermentation workshop Main fermentation: turn compost when the temperature rises above 60°C, control the temperature in the range of 60°C to 70°C, and transfer to after-ripening fermentation after 20 days of fermentation. After 4 days, the internal temperature of the compost is lower than 40°C, and the fermentation ends; Pulverizer pulverizes and sieves, and obtains total nutrient is 7.0%, and organic matter is 1800Kg of the finished product organic fertilizer of 48%.

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Abstract

The invention relates to a microbiological treatment method for rice / wheat straw waste, belonging to the technical field of resources and environment. On the basis of the study on the composition and properties of the rice / wheat straw waste, the invention provides the method for the rice / wheat straw waste to be stacked in a centralized manner and to be transplanted with a compound microbe for fermentation so as to carry out pollution-free treatment. Under the function of the compound microbe which is composed of bacillus subtilis, clostridium and rhizopus, continuous fermentation and temperature rising are carried out on the rice / wheat straw waste; at the same time as harmful pathogens are killed, the rice / wheat straw waste is decayed after being completely decomposed, so as to obtain excellent organic fertilizer. The treatment method is simple in processing, and the waste is recycled. Therefore, the treatment method in the invention is an ideal one that accords with the national conditions, needs low cost and can effectively treat the rice / wheat straw waste in cities and suburbs.

Description

technical field [0001] The invention relates to a treatment method for rice and wheat straw waste, in particular to a treatment method for harvested rice and wheat straw waste. Background technique [0002] Taking Shanghai as an example, in the 1980s, the comprehensive utilization of rice and wheat straw was relatively large, reaching 70-80% of the output of straw, which was mainly used as firewood for rural life, used as livestock feed, and returned to the field by stacking and retting. and sideline weaving and processing, and the remaining straw is used as raw material for pulp production. The agricultural technology department has also carried out the test and promotion of rice straw returning to the field. The cumulative promotion area has reached 1.8 million mu, and the returning amount per mu is 150-200kg, which has played a great role in supplementing soil organic matter and nutrient elements. However, in the mid-to-late 1990s, with the improvement of living standard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 吴瑞兵汪红兵余世贤吴奇能
Owner 上海合庆火龙果科技开发有限公司
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