A method for producing organic fertilizer with citrus peel residue and urban sludge as main raw materials and organic fertilizer

A technology of citrus peel residue and municipal sludge, applied in fertilization equipment, fertilizer mixture, application, etc., can solve the problems of low fertilizer quality, poor effect, environmental hazards, etc., achieve low operating costs, shorten maturity time, increase The effect of microbial biomass

Inactive Publication Date: 2018-03-09
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low nitrogen, phosphorus, and potassium content of citrus peels, and their acidity, the effect of composting is not good and the quality of fertilizers is not high.
[0003] On the other hand, the massive generation of urban sludge has become a serious problem in sewage treatment, and if it cannot be properly disposed of, it will cause serious harm to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Main ingredients: citrus peel residue after industrial juicing, its moisture content, that is, the mass fraction of water, is 80.0%, and the particle size is less than 1cm; urban sludge, that is, the dewatered sludge discharged from the secondary sedimentation tank of the urban sewage treatment system, Its water content is 80%, and the volatile solid content, that is, the mass fraction of volatile solids in dry matter, is 80%.

[0023] Auxiliary materials: straw and pig manure crushed to a particle size of less than 1cm;

[0024] Biological strains: Black mold, Bacillus subtilis and Trichoderma viride with a weight ratio of 1:1:1, and the number of active bacteria is not less than 1.5×10 9 cfu / g.

[0025] Organic fertilizers are produced by the following methods:

[0026] 1) Mixing: Mix 35 parts by weight of citrus peel residue, 32 parts of municipal sludge, 17 parts of straw with a moisture content of 6% and 1 part of biological bacteria to form a mixed material, and...

Embodiment 2

[0032] Main ingredients: citrus peel residue after industrial juicing, with a moisture content of 80.0%, pulverized to less than 1cm; urban sludge, that is, the dewatered sludge discharged from the secondary sedimentation tank of the urban sewage treatment system, with a moisture content of 70% , the volatile solids content is 70.5%. Auxiliary materials: straw and pig manure crushed to a particle size of less than 1cm;

[0033] Biological strains: Black mold, Bacillus subtilis and Trichoderma viride with a weight ratio of 1:1:1, and the number of active bacteria is not less than 1.5×10 9 cfu / g.

[0034] Organic fertilizers are produced by the following methods:

[0035] 1) Mixing: Mix 30 parts by weight of citrus peel residue, 35 parts of municipal sludge, 16 parts of straw with a moisture content of 1% and 1 part of biological bacteria to form a mixed material, and then add it to the mixture. Quicklime was added to the mixed material at a rate of 6.9kg / ton to control the p...

Embodiment 3

[0041]Main ingredients: citrus peel residue after industrial juicing, its moisture content is 80.0%, crushed to less than 1cm; urban sludge, that is, dewatered sludge discharged from the secondary sedimentation tank of urban sewage treatment system, its moisture content is 65.0% , with a volatile solids content of 60.0%.

[0042] Auxiliary materials: straw and pig manure crushed to a particle size of less than 1cm;

[0043] Biological strains: Black mold, Bacillus subtilis and Trichoderma viride with a weight ratio of 1:1:1, and the number of active bacteria is not less than 1.5×10 9 cfu / g.

[0044] Organic fertilizers are produced by the following methods:

[0045] 1) Mixing: Mix 31 parts by weight of citrus peel residue, 31 parts of municipal sludge, 21 parts of straw with a moisture content of 4% and 2 parts of biological bacteria to form a mixed material, and then add it to the mixed material. Quicklime was added to the mix at a ratio of 7.6kg / ton to control the pH valu...

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PUM

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Abstract

The present invention proposes a method and organic fertilizer using citrus peels and urban sludge as main raw materials to produce organic fertilizers, and the raw materials are as follows Parts by weight: 30-35% of citrus peel residue, 30-35% of urban sludge, 15-20% of livestock and poultry manure, 16-23% of straw, and 1-2% of biological strains. Organic fertilizers are obtained after batching, initial fermentation, composting and decomposing, drying and killing insects. The organic fertilizer complies with the organic fertilizer standards distributed by the state. The invention has simple process and low cost, effectively realizes the harmlessness and recycling of citrus peel residue and urban sludge, and has good environmental and economic benefits.

Description

technical field [0001] The invention belongs to the field of organic fertilizer manufacturing and the technical field of organic solid waste recycling, and relates to an organic fertilizer using citrus peel residue and urban sludge as main raw materials and a preparation method. Background technique [0002] In recent years, with the rapid development of my country's citrus industry, the orange juice processing industry has also risen rapidly in various places, and the problem of citrus peel residue has become increasingly prominent. Waste residue is a common problem that the orange juice industry must face. The traditional dumping and landfill method not only pollutes the environment and seriously threatens public safety, but the waste residue itself is rich in various nutrients and wastes resources. At present, a lot of research has been done on the utilization technology of citrus peel residue at home and abroad, such as fermented feed, alcohol, fruit vinegar, citric acid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 晏鹏陈猷鹏郭劲松申渝杨吉祥
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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