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Preparation method of novel compost

A new type of composting technology, applied in the field of preparation of new type compost, can solve the problems of large sludge moisture, general fertilizer fertility, and difficulty in composting, and achieve the effect of eliminating environmental pollution and enhancing digestion and processing capacity.

Inactive Publication Date: 2017-02-01
滁州朝昱农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current sludge composting technology is not perfect enough. The composting treatment of sludge alone has average fertility, and because the sludge has a large moisture content, it is not easy to compost, and it is easy to harden the sludge when it is dried.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of preparation method of novel compost comprises the following steps:

[0019] (1) Adjust the water content of the sludge produced by sewage treatment to 60%, mix it with animal manure, add attapulgite and biochar, then add humic acid and waste distiller's grains, and finally add auxiliary materials and mix well;

[0020] Wherein, the biochar is prepared by the following method: crushing crop stalks and burning them at 500° C. for 0.5 h in a closed container to obtain the biochar;

[0021] The auxiliary materials are sawdust, rice bran, crop straw, medicine dregs and tobacco powder;

[0022] (2) Pour the mixed bacterial solution on the raw materials mixed in step (1), and the mixed bacterial solution is Bacillus subtilis, yeast, lactobacillus, nitrifying bacteria and Aspergillus niger;

[0023] (3) Put 500 mature earthworms with clear rings and sensitive responses per ton on the compost obtained in step (2), and compost for 40 days. The compost fer...

Embodiment 2

[0027] Embodiment 2: a kind of preparation method of novel compost comprises the following steps:

[0028] (1) Adjust the water content of the sludge produced by sewage treatment to 65%, mix it with animal manure, add attapulgite and biochar, then add humic acid and spent distiller's grains, and finally add auxiliary materials and mix well;

[0029] Wherein, the biochar is prepared by the following method: crushing crop stalks and burning them at 300° C. for 1 hour in a closed container to obtain the biochar;

[0030] The auxiliary materials are sawdust and tobacco;

[0031] (2) The raw materials mixed in step (1) are poured with the mixed bacterial solution, and the mixed bacterial solution is Bacillus subtilis and Lactobacillus;

[0032] (3) Put 1,000 mature earthworms with clear rings and sensitive responses per ton on the compost obtained in step (2), and carry out composting for 20 days. The composting method is aerobic fermentation to obtain decomposed compost;

[0033...

Embodiment 3

[0036] Embodiment 3: a kind of preparation method of novel compost comprises the following steps:

[0037] (1) Adjust the water content of the sludge produced by sewage treatment to 40%, mix it with animal manure, add attapulgite and biochar, then add humic acid and waste distiller's grains, and finally add auxiliary materials and mix well;

[0038] Wherein, the biochar is prepared by the following method: crushing crop straws, and burning them at 400° C. for 5 hours in a closed container to obtain the biochar;

[0039] The auxiliary materials are rice bran and crop straw;

[0040] (2) The raw materials mixed in step (1) are poured with the mixed bacterial solution, and the mixed bacterial solution is Bacillus subtilis, nitrifying bacteria and Aspergillus niger;

[0041] (3) Put 800 mature earthworms with clear rings and sensitive responses per ton on the compost obtained in step (2), and compost for 30 days. The compost fermentation method is aerobic fermentation, and the de...

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Abstract

The invention discloses a preparation method of novel compost and relates to the field of preparation of agricultural fertilizer. The preparation method comprises: mixing sludge generated by sewage treatment and animal excrement; adding attapulgite and biomass charcoal; adding humic acid and waste vinasse; finally, adding auxiliary materials and spraying mixed bacterium liquid; adding mature earthworms and maturing compost; sieving; finally, detecting and packaging. According to the preparation method provided by the invention, the sludge and the animal excrement are treated by adopting a microorganism aerobic composting manner, so that harmlessness and recycling are realized; the earthworms are introduced in a treatment process, and the sludge, the animal excrement and the earthworms supplement one another; benefit maximization of fertilizer production is realized; loosening and digestion of the sludge and the animal excrement can be carried out through movement of the earthworms; a digestive treatment capability of a bacterium agent sprayed on the sludge and the animal excrement under aerobic conditions is enhanced; meanwhile, the earthworms, which are dead at a high-temperature condition, can also be used as fertilizer; the earthworms can absorb trace metals including mercury, lead, cadmium and the like in soil and the earthworms can be used for eliminating environmental pollution to a certain extent.

Description

technical field [0001] The invention relates to the field of preparation of agricultural fertilizers, in particular to a preparation method of novel compost. Background technique [0002] With the continuous improvement of my country's sewage treatment capacity, the sludge generated in sewage treatment is also increasing, and the problem of sludge treatment and disposal has clearly emerged. As we all know, my country is in the stage of rapid development of sewage treatment plants. In 2003, the national sewage treatment rate was 42.39%, and in 2007 it had reached 62.9%. In 2008, 1,529 urban sewage treatment plants were put into operation across the country, treating 23.3 billion cubic meters of sewage and producing about 16 million tons of sludge with a moisture content of 80%. For such a large amount of sludge, many sewage treatment plants in my country only carry out simple concentration and dehydration on the sludge and then transport it abroad. According to incomplete s...

Claims

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Application Information

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IPC IPC(8): C05F17/00C05G1/00
CPCC05D9/00C05F17/05C05F3/00C05F5/008C05F7/00C05F11/02C05F11/08Y02W30/40
Inventor 辛松
Owner 滁州朝昱农业科技有限公司
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