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Method for promoting formation of large aggregates of electrolytic manganese residues

A technology of electrolytic manganese slag and body shape, which is applied in the direction of chemical instruments and methods, fertilizers made of biological waste, applications, etc., can solve problems such as environmental pollution of electrolytic manganese slag piles, increase the number and stability, improve stability, Improve the effect of hardening

Pending Publication Date: 2022-06-28
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for promoting the formation of large aggregates of electrolytic manganese slag, and solve the problem of environmental pollution caused by the accumulation of a large amount of electrolytic manganese slag

Method used

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  • Method for promoting formation of large aggregates of electrolytic manganese residues
  • Method for promoting formation of large aggregates of electrolytic manganese residues
  • Method for promoting formation of large aggregates of electrolytic manganese residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Changes in the content of large aggregates of electrolytic manganese slag after cultivating in Example 1 for 90 days

[0028] Remove impurities from the electrolytic manganese slag sample, air-dry and pass through a 10-mesh sieve, take 0.5 kg of the sieved sample, add bagasse and earthworm manure in proportion, mix evenly, and then add deionized water to maintain a water holding rate of 70%. Cultivate at room temperature for 90 days to form large aggregates of electrolytic manganese slag.

[0029] V 1 B 1 Group: Vermicompost V 1 20g (4%) and bagasse B 1 20g (4%).

[0030] V 2 B 2 Group: Vermicompost V 2 40g (8%) and bagasse B 2 40g (8%).

Embodiment 2

[0045] Changes in the content of large aggregates of electrolytic manganese slag after cultivating in Example 2 for 120 days

[0046] Remove impurities from the electrolytic manganese slag sample, air-dry and pass through a 10-mesh sieve, take 0.5 kg of the sieved sample, add bagasse and earthworm manure in proportion, mix evenly, and then add deionized water to maintain a water holding rate of 70%. Cultivate at room temperature for 120 days to form large aggregates of electrolytic manganese slag.

[0047] V 1 B 1 Group: Vermicompost V 1 20g (4%) and bagasse B 1 20g (4%).

[0048] V 2 B 2 Group: Vermicompost V 2 40g (8%) and bagasse B 2 40g (8%).

Embodiment 3

[0062] Example 3 Remove impurities from the electrolytic manganese slag sample, air-dry and pass through a 10-mesh sieve, take 0.5 kg of the sieved sample, add bagasse B 3 30g (6%) and vermicompost V 3 30g (6%), mixed evenly, then added deionized water to maintain a water holding rate of 70%, and cultivated at room temperature for 120 days to form large aggregates of electrolytic manganese slag.

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Abstract

The invention discloses a method for promoting the formation of an electrolytic manganese residue large aggregate, which comprises the following steps: adding bagasse and earthworm manure into a pretreated electrolytic manganese residue sample, uniformly mixing, adding deionized water, and culturing at room temperature for 90-150 days to obtain the electrolytic manganese residue large aggregate. According to the method, soil hardening and the pH value of the soil are improved through the bagasse, formation of large aggregates of the electrolytic manganese residues is effectively accelerated through microorganisms and organic matter of the earthworm manure, the electrolytic manganese residues are converted into a matrix similar to soil, and then vegetation reconstruction of the waste manganese ore land and the storage yard is achieved. The raw materials and the method adopted in the method are simple and easy to implement, and the problem of stockpiling of a large amount of electrolytic manganese residues and the problem of environmental pollution caused by stockpiling of the electrolytic manganese residues can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for promoting the formation of large aggregates of electrolytic manganese slag. Background technique [0002] Electrolytic manganese residue (EMR) is the acid leaching residue produced by leaching manganese metal from rhodochrosite with sulfuric acid. 8-10 tons of electrolytic manganese slag should be discharged for every ton of electrolytic manganese produced. At present, my country accounts for 98% of the total production capacity of electrolytic manganese in the world, and discharges about 20 million tons of electrolytic manganese slag every year. Over the years, it has accumulated more than 80 million tons. The stock is huge and relatively scattered, and the overall utilization rate of electrolytic manganese slag is less than 20%. Electrolytic manganese slag contains high content of sulfate, ammonia nitrogen and manganese, and contains a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C09K17/40C09K101/00
CPCC05D9/02C05G3/80C09K17/40C09K2101/00C05F3/00C05F5/002
Inventor 王钧夏琪欧阳冠怡闫文德吴小红
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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