Compound bio-fertilizer containing ardealite and application thereof

A technology of biological compound fertilizer and phosphogypsum, applied in the application, biological organic part treatment, organic fertilizer and other directions, can solve the problems of phosphogypsum, crop straw and livestock and poultry manure environmental pollution, etc., to promote the development of crop root system, increase absorption and The effect of utilizing and improving resistance

Inactive Publication Date: 2010-04-14
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of environmental pollution caused by phosphorus chemical waste phosphogypsum, crop stalks and livestock and poultry manure, to recycle environmental pollutants, and to provide a biological compound fertilizer contain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1:

[0032] 1. Treatment of phosphogypsum and organic fertilizer:

[0033] 1) Adjust the pH of the waste phosphogypsum of the chemical plant to 4-5 with lime water, and then pulverize it to 200-400 mesh for use; dry the livestock and poultry manure or cut the crop straw into the sun for use;

[0034] 2) Mix the prepared phosphogypsum powder with pretreated livestock and poultry manure according to the weight ratio; or with pretreated crop straw; or mix with pretreated livestock and poultry manure and crop straw to prepare a mixture; the weight ratio of the mixture It is: phosphogypsum: livestock and poultry manure = 30-50: 70-50; phosphogypsum: crop straw = 20-50: 80-50; phosphogypsum: livestock and poultry manure: crop straw = 30-50: 10-20: 60 -30;

[0035] 3) Mix the above mixture thoroughly, and add 35-65% of the weight of the mixture with water; stack the prepared mixture for fermentation, the pile height is 1-1.5 meters, the bottom length is 20-30 meters, and the ...

Example Embodiment

[0050] Embodiment two:

[0051] 1. Treatment of phosphogypsum and organic fertilizer:

[0052] 1) Adjust the pH of the waste residue phosphogypsum of the chemical plant to 5 with lime water, then dry it, then crush it to 400 mesh for use; dry the livestock and poultry manure, and cut the crop straw into the sun for use;

[0053] 2) Mix the prepared phosphogypsum powder with pretreated livestock and poultry manure and crop straws according to the weight ratio to prepare a mixture; the mixed weight ratio is: phosphogypsum: livestock manure: crop straw = 40:15:45 ; Among them: 2.4 tons of phosphogypsum, 0.9 tons of livestock manure, and 2.7 tons of crop straw.

[0054] 3) Mix the above three thoroughly, add 2.6 tons of water; stack the prepared mixture for fermentation, and ferment for 14-20 days in summer. During fermentation, the pile height is 1.5 meters, the bottom length is 30 meters, and the width is 20 meters. The surrounding area is covered with plastic film to promote fermentat...

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PUM

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Abstract

The invention provides a compound bio-fertilizer containing ardealite and application thereof. Compound bio-fertilizer is obtained through following steps: adjusting pH value of the ardealite to 4-5 via lime water, drying and crushing to 200-400 sections; drying animal manure, cutting crop straws into sections and then drying; mixing and fermenting the ardelite, the animal manure and the crop straws; controlling cultivation temperature to be at 28-32 DEG C after medium sterilization, sequentially inoculating various beneficial microorganisms, respectively cultivating the same, mixing mixed bacteria with prepared fermenting mixture by weight ratio of 1:300-1000 after completing cultivation, adding water to adjust water content to 35-45%, stirring the water , stacking the mixture for 3-5 days for co-fermentation, further adding water to adjust water content to 20-30%, and then crushing to obtain the compound bio-fertilizer. The compound bio-fertilizer is mainly applied to field crops and applied to improving saline-alkali soil, acid soil and coastal soil structures.

Description

Technical field: [0001] The invention relates to a kind of resource utilization of phosphorus chemical industry waste to produce biological compound fertilizer and its application, in particular to a biological compound fertilizer containing phosphorus gypsum and its application. Background technique: [0002] The process of wet production of phosphoric acid and phosphate fertilizer produces a large amount of solid waste - phosphogypsum. The world produces about 100-280 million tons of scale gypsum every year. It is usually piled on the ground without any treatment, occupying and wasting a lot of land resources, and causing serious problems. environmental pollution. There are more than 400 phosphate fertilizer enterprises in my country, which produce 30-50 million tons of phosphogypsum waste residue every year. These waste residues are often untreated and piled on the ground, which not only occupies a large amount of land, but also contains a variety of heavy metal elements ...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05F17/00C05G3/80
CPCY02W30/40
Inventor 吴洪生刘正柱申双和
Owner NANJING UNIV OF INFORMATION SCI & TECH
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