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 and slow root growth. , the effect of promoting absorption and utilization

Inactive Publication Date: 2010-12-22
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 containing phosphorus gypsum. Production, recycling industrial waste phosphogypsum, livestock and poultry manure, and agricultural waste straw to provide fertilizers for agricultural production, which can improve and increase soil productivity, promote crop growth, and improve crop quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] 1. Phosphogypsum and organic fertilizer treatment:

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

[0034] 2) Mix the above prepared phosphogypsum powder with pretreated livestock and poultry manure; or with pretreated crop straw; or with pretreated livestock and poultry manure and crop straw to prepare a mixture; the weight ratio of mixing For: 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, add water accounting for 35-65% of the mixture weight; stack the prepared mixture for fermentation, the height of the pile is 1-1.5 meters, the bottom length is 20-30 meters, and the width is 15-...

Embodiment 2

[0051] 1. Phosphogypsum and organic fertilizer treatment:

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

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

[0054] 3) Thoroughly mix the above three, add 2.6 tons of water; stack the prepared mixture for fermentation, and ferment for 14-20 days in summer. During fermentation, the height of the pile is 1.5 meters, the length of the bottom is 30 meters, and the width is 20 meters. The surroundings ...

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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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Patent Type & Authority Patents(China)
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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