Phosphorus-solubilizing complex microbial inoculant and application thereof

A compound bacterial agent and phosphorus-dissolving technology, which is applied in the direction of bacteria, microorganisms, biochemical equipment and methods, etc., can solve the problems of low phosphorus recovery, surrounding environmental pollution, ecological environment hazards, etc., to increase the content of available phosphorus and promote effective absorption , the effect of improving utilization efficiency

Pending Publication Date: 2022-03-11
承德宝通矿业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production and accumulation of phosphorus tailings will not only cause the loss of phosphorus and other useful resources, but also occupy land and bring great harm to the ecological environment
[0003] The comprehensive utilization rate of phosphorus tailings in our country is very low. Phosphate ore will produce a large amount of tailings in the flotation process. The tailings have been piled up in the tailings pond for a long time, and some areas are even piled up in the open air, which has caused serious pollution to the surrounding environment.
At present, the secondary recovery of phosphorus tailings mainly adopts the dilute acid leaching method, which has high cost and low phosphorus recovery.

Method used

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  • Phosphorus-solubilizing complex microbial inoculant and application thereof
  • Phosphorus-solubilizing complex microbial inoculant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Phosphorus-solubilizing compound bacteria agent, including the following volume percentages: Bacillus subtilis: 3%; Bacillus thuringiensis: 9%; Bacillus amyloliquefaciens: 1%; Streptomyces nonhygroscopicus: 4%; the remaining water;

[0023] Wherein the mass percentage concentration of Bacillus subtilis is 8%, the mass percentage concentration of Bacillus thuringiensis is 8%, the mass percentage concentration of Streptomyces anhydrous is 3%; the mass percentage concentration of Bacillus amyloliquefaciens is 2%.

[0024] Example 1 Application of Phosphorus Solubilizing Compound Bacteria in Phosphorus Tailings, Phosphorus Tailings are Fine, -0.038mm Grain Grading Content Accounts for 90-92%, Available Phosphorus Content 7.33mg·kg, Total Phosphorus Content 35.7g·kg -1 .

[0025] Phosphorus tailing inorganic phosphorus medium composition: glucose 10g L -1 , Ca 3 (PO 4 ) 2 10g·L -1 , (NH 4 ) SO 4 0.5g·L -1 , KCl 0.3g·L -1 , MgSO 4 .7H 2 O 0.3g·L -1 , FeSO 4 .7H...

Embodiment 2

[0028] Phosphorus-solubilizing compound bacterial agent, including the following volume percentages: Bacillus subtilis: 3%; Bacillus thuringiensis: 8%; Bacillus amyloliquefaciens: 2%; Streptomyces nonhygroscopicus: 3%; the remaining water;

[0029] Wherein the mass percentage concentration of Bacillus subtilis is 8%, the mass percentage concentration of Bacillus thuringiensis is 8%, the mass percentage concentration of Streptomyces anhydrous is 3%; the mass percentage concentration of Bacillus amyloliquefaciens is 2%.

[0030] Example 2 Application of Phosphorus Solubilizing Compound Bacteria in Phosphorus Tailings, Phosphorus Tailings are fine, -0.038mm particle size accounts for 90-92%, available phosphorus content is 7.33mg·kg, and total phosphorus content is 35.7g·kg -1 .

[0031] Phosphorus tailing inorganic phosphorus medium composition: glucose 10g L -1 , Ca 3 (PO 4 ) 2 10g·L -1 , (NH 4 ) SO 4 0.5g·L -1 , KCl 0.3g·L -1 , MgSO 4 .7H 2 O 0.3g·L -1 , FeSO 4 ...

Embodiment 3

[0034] Phosphorus-solubilizing compound bacteria agent, including the following volume percentages: Bacillus subtilis: 4%; Bacillus thuringiensis: 8%; Bacillus amyloliquefaciens: 1%; Streptomyces nonhygroscopicus: 5%; the rest water;

[0035] Wherein the mass percentage concentration of Bacillus subtilis is 8%, the mass percentage concentration of Bacillus thuringiensis is 8%, the mass percentage concentration of Streptomyces anhydrous is 3%; the mass percentage concentration of Bacillus amyloliquefaciens is 2%.

[0036] Example 3 Application of Phosphorus Solubilizing Compound Bacteria in Phosphorus Tailings, Phosphorus Tailings are Fine, -0.038mm Grain Grading Content Accounts for 90-92%, Available Phosphorus Content 7.33mg·kg, Total Phosphorus Content 35.7g·kg -1 .

[0037] Phosphorus tailing inorganic phosphorus medium composition: glucose 10g L -1 , Ca 3 (PO 4 ) 2 10g·L -1 , (NH 4 ) SO 4 0.5g·L -1 , KCl 0.3g·L -1 , MgSO 4 .7H 2 O 0.3g·L -1 , FeSO 4 .7H 2 O...

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Abstract

The invention relates to a phosphate-solubilizing complex microbial inoculant which comprises the following components in percentage by volume: 3-4% of bacillus subtilis; 8%-9% of bacillus thuringiensis; 1%-2% of bacillus amyloliquefaciens; 3%-5% of streptomyces ahygroscopicus; and the balance of water. The mass percentage concentration of the bacillus subtilis is 6%-8%. The mass percentage concentration of the bacillus thuringiensis is 5%-8%. The mass percentage concentration of the streptomyces ahygroscopicus is 3%-5%. The mass percentage concentration of the bacillus amyloliquefaciens is 2%-4%. The utilization efficiency of phosphorus in the ferrophosphorus tailings is improved, the content of available phosphorus is increased, and effective absorption of plants is promoted.

Description

technical field [0001] The invention relates to the technical field of ferrophosphate tailings treatment, in particular to a phosphorus-dissolving composite bacterial agent and its application. Background technique [0002] Phosphate rock is a non-renewable resource and an irreplaceable resource. Although my country's phosphate rock resource reserves are abundant, there are few high-grade resources that can be directly used, and nearly half of the phosphate rock P 2 o 5 If the grade is below 19%, a large amount of medium and low-grade phosphate rock needs to be enriched through ore dressing before it can be more economically utilized. Phosphate ore resources are sorted to obtain phosphate concentrate, and most of the tailings are stored as waste. For every 1t of phosphorous concentrate produced, about 0.44t of tailings are produced. The production and accumulation of phosphorus tailings will not only cause the loss of phosphorus and other useful resources, but also occup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12P3/00C12R1/125C12R1/07C12R1/465
CPCC12N1/20C12P3/00
Inventor 周振华段留生张作金吴天来王晔靳永胜李润枝杨帅锋潘晓静刘子琪
Owner 承德宝通矿业有限公司
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