Method for producing compost

A production method and a composting technology, which are applied in the field of composting, can solve the problems of inability to effectively improve plant growth conditions, crop yield, low resistance, and reduction of humus, and achieve the effects of enhancing plant resistance to diseases and insect pests, good decomposing degree and lasting effect.

Inactive Publication Date: 2008-07-09
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The use of a large number of chemical fertilizers reduces the humus of the soil and makes the soil barren. The use of a single chemical fertilizer can no longer effectively improve the growth of plants and increase crop yields
Experiments have proved that plants grown in poor soil have lower resistance to various pathogenic bacteria, which has also led to the extensive application of pesticides and fertilizers, causing serious pollution to the environment

Method used

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  • Method for producing compost

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Select 500 kg of sludge from a sewage treatment plant for dehydration treatment, take 300 kg of dehydrated sludge, select 350 kg of cow dung and 350 kg of wood chips as conditioners, fully mix the three raw materials, and take samples from the mixture. The C / N value is 25 (the weight of cow dung and wood chips is determined by the test of the target value of C / N of 25). In the mixture, add 350ml of VT bacteria, then stir and put it into the fermentation tank for fermentation. During the fermentation process, an automatic control system is used to ventilate, and the system parameters are set so that the oxygen content in the air in the fermentation tank is 18%, and the humidity is controlled at 18%. 60%, the temperature is at 50 degrees Celsius.

[0028] After 7 days of fermentation, a thorough turning is performed. After 15 days of fermentation, the compost fermentation is basically mature. Sampling analysis mature compost, its main component content is as follows (fi...

Embodiment 2

[0032] Select 500 kg of sludge from a sewage treatment plant for dehydration treatment, take 300 kg of dehydrated sludge, select 200 kg of slag and 400 kg of poplar leaves as conditioners, fully mix the three raw materials, and take samples of the mixture to measure Its C / N value is 28 (the weight of slag and poplar leaves is determined through experiments by the purpose value of C / N of 21). In the mixture, add 350ml of VT bacteria, then stir and put it into the fermentation tank for fermentation. During the fermentation process, an automatic control system is used to ventilate, and the system parameters are set so that the oxygen content in the air in the fermentation tank is 18%, and the humidity is controlled at 18%. 60%, the temperature is at 50 degrees Celsius.

[0033] After 7 days of fermentation, a thorough turning is performed. After 15 days of fermentation, the compost fermentation is basically mature. Sampling analysis mature compost, its main component content is...

Embodiment 3

[0037] Select 500 kg of sludge from a sewage treatment plant for dehydration treatment, take 300 kg of dehydrated sludge, select 350 kg of cow dung, and 300 kg of crushed rice straw as conditioners, fully mix the three raw materials, and sample the mixture Its C / N value was measured to be 20. In the mixture, add 350ml of VT bacteria, then stir and put it into the fermentation tank for fermentation. During the fermentation process, an automatic control system is used to ventilate, and the system parameters are set so that the oxygen content in the air in the fermentation tank is 18%, and the humidity is controlled at 18%. 60%, the temperature is at 50 degrees Celsius.

[0038] After 7 days of fermentation, a thorough turning is performed. After 15 days of fermentation, the compost fermentation is basically mature. Sampling analysis mature compost, its main component content is as follows (first 6 groups of data are percentages by weight):

[0039] water

[0040] T...

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Abstract

The invention relates to a process for producing organic fertilizers, in particular to a process for producing composts by employing the method of compost fermentation, wherein the process comprises: selecting filthy mud as main fermenting raw materials, adding a conditioner in the filthy mud to adjust the carbon nitrogen ratio between 15 and 30, then adding catalytic bacteria, finally performing compost fermentation, wherein the conditioner is capable of employing castoffs as animal wastes, sawdust, wooden meals, traditional Chinese medicine dregs, straws, leave and the like and the castoffs have rich organic contents. The nutrition composition of organic base material which are fermented is more reasonable via controlling carbon nitrogen ratio in the invention, and the invention uses filthy mud which urgently needs to be handled to replace the conventional night soils and straws to be main raw materials of the composts, changes waste into valuable, and has certain effect for improving urban environment.

Description

technical field [0001] The invention relates to a composting technology, in particular to a method for preparing organic compost through the principle of composting fermentation. In the present invention, by controlling the ratio of carbon and nitrogen, the nutrient structure of the fermented organic substrate is more reasonable. In addition, the present invention uses sludge that needs to be disposed of urgently to replace traditional feces and straw as the main raw materials for composting, turning waste into treasure, and has a certain role in promoting the improvement of urban environment. Background technique [0002] The use of a large number of chemical fertilizers reduces the humus of the soil and makes the soil barren. The use of a single chemical fertilizer can no longer effectively improve the growth of plants and increase crop yields. Experiments have shown that plants grown in poor soil have lower resistance to various pathogenic bacteria, which has also led to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 周根娣
Owner HANGZHOU NORMAL UNIVERSITY
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