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Method for preparing humus organic fertilizer

An organic fertilizer and humus technology, applied in the preparation of organic fertilizers, organic fertilizers, fertilizer mixtures, etc., can solve the problems of no standardized treatment of sludge, inability to prepare organic fertilizers, ecological environment threats, etc. Ease of implementation and low production costs

Inactive Publication Date: 2020-01-17
宁波丰科源农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the massive generation of sludge and municipal waste has become a major problem in the world. However, landfill is the main method of sludge treatment in my country. In addition, a large amount of industrial sludge is not treated in a standardized manner, which directly causes "secondary pollution". , a serious threat to the ecological environment
Some researchers have proposed to reuse these wastes as organic fertilizers to promote sustainable development. However, the existing wastes (especially sludge) contain a lot of heavy metals and cannot be directly used to prepare organic fertilizers.

Method used

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  • Method for preparing humus organic fertilizer
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Examples

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Effect test

Embodiment 1

[0051] A method for preparing a humic organic fertilizer, the method comprising the steps of:

[0052] (1) Mix the sludge with water content of 70% to 80% black and odorous river course with tap water to obtain a sludge mixture; add alum to the sludge mixture, stir evenly, let stand for 6 to 8 hours, filter and take Solid, that is, to obtain activated sludge;

[0053] Wherein, the solid-to-liquid ratio of the sludge in the black-smelly river course to tap water is 1:4; the solid-to-liquid ratio of the alum and sludge mixture is 1:25;

[0054] (2) subjecting the activated sludge to heavy metal adsorption treatment to obtain treated sludge;

[0055] (3) collecting discarded leather waste and hydrolyzing it to obtain a hydrolyzate of leather waste;

[0056] (4) After mixing the leather waste hydrolyzate, calcium carbonate and alumina, add it to deionized water, add dropwise a sulfuric acid solution with a mass concentration of 2% to pH=6, add it to a closed reaction kettle, 170...

Embodiment 2

[0088] A method for preparing a humic organic fertilizer, the method comprising the steps of:

[0089] (1) Mix the sludge with water content of 70% to 80% black and odorous river course with tap water to obtain a sludge mixture; add alum to the sludge mixture, stir evenly, let stand for 6 to 8 hours, filter and take Solid, that is, to obtain activated sludge;

[0090] Wherein, the solid-to-liquid ratio of the sludge in the black-smelly river course to tap water is 1:3-5; the solid-to-liquid ratio of the alum-sludge mixture is 1:20-30;

[0091] (2) subjecting the activated sludge to heavy metal adsorption treatment to obtain treated sludge;

[0092] (3) collecting discarded leather waste and hydrolyzing it to obtain a hydrolyzate of leather waste;

[0093] (4) After mixing the leather waste hydrolyzate, calcium carbonate and alumina, add it to deionized water, add dropwise a sulfuric acid solution with a mass concentration of 2% to pH=6, add it to a closed reaction kettle, 17...

Embodiment 3

[0125] A method for preparing a humic organic fertilizer, the method comprising the steps of:

[0126] (1) Mix the sludge with water content of 70% to 80% black and odorous river course with tap water to obtain a sludge mixture; add alum to the sludge mixture, stir evenly, let stand for 6 to 8 hours, filter and take Solid, that is, to obtain activated sludge;

[0127] Wherein, the solid-to-liquid ratio of the sludge in the black-smelly river course to tap water is 1:3-5; the solid-to-liquid ratio of the alum-sludge mixture is 1:20-30;

[0128] (2) subjecting the activated sludge to heavy metal adsorption treatment to obtain treated sludge;

[0129] (3) collecting discarded leather waste and hydrolyzing it to obtain a hydrolyzate of leather waste;

[0130] (4) After mixing the leather waste hydrolyzate, calcium carbonate and alumina, add it to deionized water, add dropwise a sulfuric acid solution with a mass concentration of 2% to pH=6, add it to a closed reaction kettle, 17...

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Abstract

The invention relates to the field of organic fertilizers, in particular to a method for preparing a humus organic fertilizer. The method comprises the following steps: (1) sludge treatment of black and odorous river channels; (2) treatment of leather waste; (3) treatment of crop byproducts; (4) preparation of a humus jelly; and (5) preparation of the humus organic fertilizer. The method can solvethe problems that existing waste (especially sludge) contains a large amount of heavy metals and cannot be directly used for preparing the organic fertilizer. According to the method, various livingand agricultural wastes and wastes are used as raw materials, a brand-new method for preparing the humus organic fertilizer is provided, wastes are turned into wealth, and the method conforms to the strategy of national sustainable development.

Description

technical field [0001] The invention relates to the field of organic fertilizers, in particular to a method for preparing humus organic fertilizers. Background technique [0002] Organic fertilizers are rich in organic matter and nutrients needed for crop growth. They can not only provide the nutrients needed for crop growth, improve the soil, but also improve crop quality, increase crop yield, promote high and stable crop yields, maintain soil fertility, and increase fertilizer efficiency. Utilization rate, reduce production cost. The full and rational use of organic fertilizers can increase crop yields, improve soil fertility, improve the quality of agricultural products, and increase the effectiveness of soil nutrients. Therefore, the promotion and application of organic fertilizers in our country is in line with the requirements of "accelerating the construction of a resource-saving and environment-friendly society", which will promote the harmonious and friendly develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05G3/00C05F17/00
CPCC05C9/00C05F17/00C05G3/00Y02W30/40
Inventor 陈勇陈再红黄雪敏陈雷孙杰
Owner 宁波丰科源农业科技有限公司