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Method of producing active nutritional fertilizer using old domostic garbage

A technology of domestic waste and nutrient fertilizer, applied to biological compound bacterial agent and earthworm, using controlled oxygen, one-time fermentation to produce active nutrient fertilizer field, can solve the problems of long fermentation time, death of beneficial bacteria, and large amount of biogas, etc. reproductive effect

Inactive Publication Date: 2008-05-14
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of the prior art, which uses old domestic garbage as raw material to produce compost and adopts aerobic secondary fermentation, which takes a long time to ferment, easily leads to the death of some beneficial bacteria, and produces a large amount of methane, thereby providing a fermentation The time is short, it will not produce a lot of biogas, it contains more vermicompost, it can greatly reduce the content of harmful heavy metal elements, and it contains specific functional beneficial bacteria. The total number of active bacteria is ≥10 7 / g and nutritious method for producing active nutrient fertilizer with old domestic garbage as raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1) screening

[0045] Use a forklift to push the garbage to the entrance of the stepping feeder, and evenly transport the garbage to the rolling screen automatic sorter through the belt conveyor connected to the feeder. The sorter automatically separates magnetic metal, bricks, tiles, sand, Plastic, mature soil, etc. are separated. The outdated domestic garbage with a particle size of less than 45mm is screened out through the drum automatic sorter, and then the coarse mature soil with a particle size larger than 5mm is selected with the vibrating screen automatic sorter; the wood with a particle size larger than 45mm is manually sorted out, and then It is crushed to make coarse mature soil. Use a conveyor belt to screen out the coarse mature soil with a particle size of 5-45mm from the old domestic garbage and put it into the fermentation tank with air supply holes at the bottom of the tank.

[0046] 2) Add loosening agent

[0047] Add the rice bran of 2wt% of the t...

Embodiment 2

[0060] 1) Screening—same as in Example 1, the coarse matured soil with a particle size of 5-45 mm was screened from the old domestic waste and put into a fermentation tank with air supply holes at the bottom of the tank.

[0061] 2) Add loosening agent

[0062] Add 5% straw of the total weight of the rough matured soil as a loosening agent, and mix well;

[0063] 3) Biological deodorization and purification by using compound bacteria agent

[0064] Inoculate 0.5wt% composite bacterial agent and mix evenly;

[0065] The compound bacterial agent is the biological deodorizing purifying agent disclosed in the patent of the applicant in another application, the application number is 200510069515.8, and the title of the invention is "a kind of biological deodorizing purifying agent and its application", which is as follows: The mixture prepared by proportioning by weight: 40 dry powder of Saccharomyces utilis, 10 dry powder of Lactobacillus, 10 dry powder of functional Bacillus, 2...

Embodiment 3

[0075] 1) Screening—same as in Example 1, the coarse matured soil with a particle size of 5-45 mm was screened from the old domestic waste and put into a fermentation tank with air supply holes at the bottom of the tank.

[0076] 2) Add loosening agent

[0077] Add the long 30mm stalk of 3wt% of coarse slaked soil gross weight as bulking agent, mix homogeneously;

[0078] 3) Biological deodorization and purification by using compound bacteria agent

[0079] Inoculate 0.4wt% composite bacterial agent and mix evenly;

[0080] The compound bacterial agent is the biological deodorizing purifying agent disclosed in the patent of the applicant in another application, the application number is 200510069515.8, and the title of the invention is "a kind of biological deodorizing purifying agent and its application", which is as follows: The mixed solution prepared by volume ratio: Candida utilis fermentation broth 20, lactic acid bacteria fermentation broth 15, functional Bacillus fer...

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Abstract

The present invention relates to method of producing active nutritious fertilizer with old domestic garbage as material. By means of composite bacteria preparation comprising azotobacteria, photosynthetic bacteria, yeast, lactic bacteria, functional bacillus and other micro aerobe or aerobe and earthworm, old domestic garbage is treated through once fermentation treatment to obtain the active nutritious fertilizer. The active nutritious fertilizer is harmless, and has water content less than 20 %, pH 7.5-8.5, total nitrogen not less than 0.3%, quick acting nitrogen not less than 0.04%, total phosphorus not less than 0.1%, total potassium not less than 0.2%, inorganic granularity small than 5 mm and total active beneficial bacteria number not less than 1x10<7> / g. The production process has short period and less produced marsh gas.

Description

technical field [0001] The invention relates to a method for producing active nutrient fertilizer, in particular to a method for producing active nutrient fertilizer by using old domestic garbage as raw materials, using biological compound bacterial agents and earthworms, adopting oxygen control, and one-time fermentation to produce active nutrient fertilizer. Background technique [0002] Municipal solid waste refers to the solid waste generated in the daily life of urban residents or in the activities that provide services for daily life. For a long time, my country's municipal solid waste has been disposed of by stacking and landfilling. Municipal solid waste that has been stacked or buried in landfills for more than 2 years is called obsolete domestic waste. Old domestic waste has been basically stabilized after years of degradation, and is characterized by rich microbial content, low organic matter content, large ash content, and low calorific value. The method of sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F9/00C05F9/04C05F17/00
CPCY02A40/20Y02W30/40
Inventor 张日俊雷蕾余玄向前黄燕李品芳郭世文
Owner CHINA AGRI UNIV
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