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Biological organic slow-release fertilizer, preparation method and application thereof in soil remediation

A slow-release fertilizer, organic technology, applied in the field of bio-organic fertilizer, can solve problems such as damage to the liver, fishy smell, danger, etc., and achieve the effect of improving fertility

Inactive Publication Date: 2018-07-31
南京霄祥工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The remains of blue-green algae will quickly rot and emit a foul smell, seriously polluting the water quality
"Water bloom" cyanobacteria contain cyanotoxins that can damage the human liver and pose potential dangers to people who use lakes as drinking water sources

Method used

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  • Biological organic slow-release fertilizer, preparation method and application thereof in soil remediation
  • Biological organic slow-release fertilizer, preparation method and application thereof in soil remediation
  • Biological organic slow-release fertilizer, preparation method and application thereof in soil remediation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 The preparation of bio-organic slow-release fertilizer

[0044] In the first step, the cyanobacteria and water are mixed according to the weight ratio of 1:5, and the cyanobacteria are crushed under the action of mechanical crushing and external ultrasonic waves. The power of the external ultrasonic waves is 2500W and the frequency is 10kHz; the obtained suspension Dilute 2 times, add HCl to the diluent to adjust the pH to 3, then add 0.05wt% enzyme of the diluent weight to carry out enzymolysis, the enzymolysis reaction time is 3h, the reaction temperature is 35°C, after the enzymolysis reaction, after 95 °C inactivating enzyme treatment, the enzyme is a mixture of alkaline cellulase, alkaline xylanase and laccase in a weight ratio of 3:1:0.5;

[0045] In the second step, add strains to the enzymolysis liquid obtained in the first step for fermentation to obtain a cyanobacteria fermentation liquid, the strains are a mixture of Saccharomyces cerevisiae and ...

Embodiment 2

[0050] Embodiment 2 Preparation of bio-organic slow-release fertilizer

[0051] In the first step, the cyanobacteria and water are mixed according to the weight ratio of 1: 10, and the cyanobacteria are crushed under the action of mechanical crushing and external ultrasonic waves. The power of the external ultrasonic waves is 4000W and the frequency is 30kHz; the obtained suspension Dilute 4 times, add HCl to the diluent to adjust the pH to 5, and then add 0.1wt% enzyme of the diluent weight for enzymolysis. ℃ inactivating enzyme treatment, the enzyme is a mixture of alkaline cellulase, alkaline xylanase and laccase in a weight ratio of 4: 1.2: 0.8;

[0052] In the second step, add strains to the enzymolysis liquid obtained in the first step for fermentation to obtain a cyanobacteria fermentation liquid, the strains are a mixture of Saccharomyces cerevisiae and Lactobacillus acidophilus, the fermentation temperature is 35°C, and the fermentation time is 100h;

[0053] The 3rd...

Embodiment 3

[0057] Embodiment 3 Preparation of bio-organic slow-release fertilizer

[0058] In the first step, the cyanobacteria and water are mixed according to the weight ratio of 1:7, and the cyanobacteria are crushed under the action of mechanical crushing and external ultrasonic waves. The power of the external ultrasonic waves is 3000W and the frequency is 20kHz; the obtained suspension Dilute 3 times, add HCl to the diluent to adjust the pH to 4, then add 0.08wt% enzyme in the diluent to carry out enzymolysis, the enzymolysis reaction time is 3~5h, the reaction temperature is 35~38℃, the enzymolysis reaction is completed Afterwards, the enzyme is treated at 95°C, and the enzyme is a mixture of alkaline cellulase, alkaline xylanase and laccase in a weight ratio of 4:1:0.6;

[0059] In the second step, add strains to the enzymolysis liquid obtained in the first step for fermentation to obtain a cyanobacteria fermentation liquid, the strains are a mixture of Saccharomyces cerevisiae a...

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Abstract

The invention relates to a biological organic slow-release fertilizer, a preparation method and application thereof in soil remediation, and belongs to the technical field of biological organic fertilizers. The slow-release fertilizer is prepared from blue algae as a main raw material; after hydrolysis and fermentation, the blue algae are further subjected to polymerization reaction with organic high polymers, and then the slow-release organic fertilizer with a through grid spatial structure can be formed; meanwhile, microorganism are introduced into the fertilizer, a relatively large amount of growth spaces can be provided for microorganisms through the structure of the slow-release fertilizer, then on one hand, nutrient components metabolized from the microorganisms can be enriched, andon the other hand, the slow-release function effect of the fertilizer can be improved; the biological organic slow-release fertilizer provided by the invention has a relatively good mine reclamation soil remediation effect, the content of organic carbon of reclamation soil can be effectively increased, and the soil aggregation effect can be improved.

Description

technical field [0001] The invention relates to a biological organic slow-release fertilizer, a preparation method and its application in soil remediation, and belongs to the technical field of biological organic fertilizers. Background technique [0002] Soil reclamation in mining areas refers to the man-made soil that is greatly influenced by human beings formed by using solid waste produced by mining industry, especially open-pit mining, as parent material, and through artificial finishing and improvement to accelerate its weathering and ripening. After a certain period of weathering and human influence, this soil can become a kind of soil that can be cultivated. Compared with the general soil, the reclaimed soil in the mining area has certain particularity, which is mainly manifested in that the soil is greatly disturbed, the nutrients are less, the soil is relatively barren, and the longitudinal nutrient regularity of the soil layer is not strong. At present, the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05F17/00A01B79/02C05G3/80
CPCA01B79/02C05B7/00C05F17/00C05G3/00C05G3/80C05D1/02C05F5/002C05F11/00C05F11/08Y02W30/40
Inventor 不公告发明人
Owner 南京霄祥工程技术有限公司
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