Method for preparing organic fertilizer by using microbial fermentation fungus dregs subjected to innocent treatment

A technology of microbial fermentation bacteria and harmless treatment, which is applied in the preparation of organic fertilizers, the treatment of biological organic parts, and organic fertilizers, etc., can solve problems such as pollution in microbial fermentation enterprises, achieve simple operation, high yield, and increase the content of organic matter. Effect

Inactive Publication Date: 2013-08-21
ZHEJIANG QIANJIANG BIOCHEMICAL CO LTD
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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 provide a method for producing organic fertilizer from the bacteria residue produced by microbial fermentation, to solve the pollution problem of microbial fermentation enterprises, and to turn waste into treasure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Microbial fermentation slag 2.5t, add about 2.5Kg of quicklime, adjust the pH to 7.0, then add 1.25t of silkworm excrement, mix evenly, stack and ferment naturally for 8 days, no pesticide residues are detected, granulate and dry, and test each Technical indicators:

[0016] Test items Test results Mass percentage of organic matter (based on drying basis), % 65 The mass percentage of total nutrients (nitrogen + phosphorus pentoxide + potassium oxide) (calculated on an oven-dried basis), % 6.5 The mass percentage of moisture, % 25 pH value 7.0 Total arsenic (As) (on oven dry basis), mg / kg 0.4 Total mercury (Hg) (on oven dry basis), mg / kg 0.05 Total lead (Pb) (on oven dry basis), mg / kg 1.1 Total cadmium (Cd) (on oven dry basis), mg / kg 0.28 Total chromium (Cr) (calculated on oven dry basis), mg / kg 8.9

[0017] In addition, the mortality rate of roundworm eggs and the number of fecal coliform bacteria m...

Embodiment 2

[0020] Microbial fermentation slag 2.5t, add about 2.4Kg of quicklime, adjust the pH to 6.5, then add 1.22t of silkworm excrement, mix evenly, stack and ferment naturally for 12 days, no pesticide residues are detected, granulate and dry, and test each Technical indicators:

[0021] Test items Test results Organic matter mass fraction (calculated on a dry basis), % 67 The mass percentage of total nutrients (nitrogen + phosphorus pentoxide + potassium oxide) (calculated on an oven-dried basis), % 6.6 The mass percentage of moisture, % 26 pH value 6.8 Total arsenic (As) (on oven dry basis), mg / kg 0.8 Total mercury (Hg) (on oven dry basis), mg / kg 0.11 Total lead (Pb) (on oven dry basis), mg / kg 1.8 Total cadmium (Cd) (on oven dry basis), mg / kg 0.47 Total chromium (Cr) (calculated on oven dry basis), mg / kg 10.9

[0022] In addition, the mortality rate of roundworm eggs and the number of fecal coliform bacteria ...

Embodiment 3

[0025] Microbial fermentation slag 2.5t, add about 2.6Kg of quicklime, adjust the pH to 7.5, then add 1.26t of silkworm excrement, mix evenly, naturally stack and ferment for 10 days, no pesticide residues are detected, granulate and dry, and test Various technical indicators:

[0026] Test items Test results Organic matter mass fraction (calculated on a dry basis), % 66 The mass percentage of total nutrients (nitrogen + phosphorus pentoxide + potassium oxide) (calculated on an oven-dried basis), % 6.4 The mass percentage of moisture, % 24 pH value 7.1 Total arsenic (As) (on oven dry basis), mg / kg 1.2 Total mercury (Hg) (on oven dry basis), mg / kg 0.22 Total lead (Pb) (on oven dry basis), mg / kg 2.8 Total cadmium (Cd) (on oven dry basis), mg / kg 0.67 Total chromium (Cr) (calculated on oven dry basis), mg / kg 12.5

[0027] In addition, the mortality rate of roundworm eggs and the number of fecal coliform bacter...

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Abstract

The invention relates to a method for preparing an organic fertilizer by using microbial fermentation fungus dregs subjected to innocent treatment. The method comprises the following steps of: (1) adding quick lime in microbial fermentation fungus dregs, and adjusting the pH value; (2) adding silkworm excrements, uniformly mixing materials, and then, naturally stacking for fermentation; and (3) granulating and drying. By using the method, the pollution problem of a microbial fermentation enterprise is solved; and the microbial fermentation fungus dregs and the silkworm excrements used as byproducts generated by the local sericulture are treated simultaneously, thus the organic matter content is greatly increased, and the fertilizer efficiency is increased. The method is simple and convenient to operate, smaller in investment, high in yield and capable of turning wastes into things of value; and the prepared organic fertilizer is an efficient and environment-friendly fertilizer, and the technical index of the organic fertilizer conforms to the provision of the industrial standard NY525-2012 organic fertilizer of the ministry of agriculture.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of microbial fermentation residues, and in particular relates to a method for producing organic fertilizers after harmless treatment of the residues produced by microbial fermentation. Background technique [0002] In recent years, with the continuous improvement of people's living standards, people's awareness of environmental protection has increased, and the Chinese government has attached great importance to the ecological environment and strengthened environmental law enforcement. Since 1997, the country has paid more and more attention to environmental pollution control. From the perspective of pollution control, urge microbial fermentation enterprises to change their traditional thinking, turn waste into wealth, and turn harm into profit. Microbial fermentation scum is the residual solid after the extraction of pesticide fermentation products. Its main components are: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 姚萍华陆春锋王银泉傅业件
Owner ZHEJIANG QIANJIANG BIOCHEMICAL CO LTD
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