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Curing method of soluble semi-solid waste salt

A solidification method, semi-solid technology, applied in chemical instruments and methods, solid waste removal, transportation and packaging, etc., can solve the problem of incomplete solidification technology of soluble semi-solid waste salt, low degree of comprehensive utilization of fly ash, no solution, etc. problem, to achieve the effect of solving the problem of comprehensive utilization, the treatment method is environmentally friendly, and the curing problem is solved

Inactive Publication Date: 2020-10-09
中节能(连云港)清洁技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There are still many ways of harmless treatment of waste salt, but many problems have not been solved
For example, the solidification technology of soluble semi-solid waste salt is not perfect, and there are still related problems such as non-forming and leakage; the comprehensive utilization of fly ash is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Drain the saturated soluble semi-solid waste salt with a moisture content of 20% to reduce the moisture content of the semi-solid waste salt, take 500g of the drained soluble semi-solid waste salt, add 50g of incineration fly ash, and 20g of cement, at 100r / min Quickly stir for 60s, and then slowly stir at 50r / min for 60s to obtain a well-mixed chelate compound, which is placed in a mold and cured for 2 days to obtain a chelated waste salt solidified body with a moisture content of 1.08%, Density is 1.27g / cm 3 . The chelated waste salt solidified body meets the requirements for entering a rigid landfill.

Embodiment 2

[0021] Drain the saturated soluble semi-solid waste salt with a moisture content of 30% to reduce the moisture content of the semi-solid waste salt, take 500g of the soluble semi-solid waste salt after draining, add 50g of incineration fly ash and 50g of lime, at 100r / min Quickly stir for 60s, and then slowly stir at 50r / min for 60s to obtain a uniformly mixed chelate compound, which is placed in a mold and cured for 2 days to obtain a chelated waste salt solidified body with a moisture content of 0.83%. Density is 1.20g / cm 3 . The chelated waste salt solidified body meets the requirements for entering a rigid landfill.

Embodiment 3

[0023] Drain the saturated soluble semi-solid waste salt with a moisture content of 40% to reduce the moisture content of the semi-solid waste salt, take 500g of the soluble semi-solid waste salt after draining, add 50g of incineration fly ash and 80g of asphalt, at 100r / min Quickly stir for 60s, and then slowly stir at 50r / min for 60s to obtain a uniformly mixed chelate compound, which is placed in a mold and cured for 2 days to obtain a chelated waste salt solidified body with a moisture content of 0.75%, The density is 1.04g / cm 3 . The chelated waste salt solidified body meets the requirements for entering a rigid landfill.

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PUM

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Abstract

The invention discloses a curing method of soluble semi-solid waste salt. The curing method comprises the following steps of: step 01. draining the soluble semi-solid waste salt, to be specific, draining the saturated soluble semi-solid waste salt to reduce the moisture content of the semi-solid waste salt; step 02. curing the soluble semi-solid waste salt, to be specific, adding the drained semi-solid waste salt, incineration fly ash, and a curing agent in proportion to a container, uniformly mixing the drained semi-solid waste salt, the incineration fly ash, and the curing agent, and fully chelating, wherein the mass ration of the soluble semi-solid waste salt to the incineration fly ash to the curing agent is 79.36 to 87.72: 7.94 to 8.77: 3.51 to 12.70, and the curing agent is one or more of cement, lime and asphalt; and step 03. putting the uniformly mixed chelated waste salt in a mold and maintaining for 1 to 7 days to obtain the chelated waste salt solidified body. By chelating and curing the soluble semi-solid waste salt, the curing agent and the incineration fly ash in proportion, the problem of solidification of the semi-solid waste salt is solved, and the problem of comprehensive utilization of the incineration fly ash is also solved; the treatment method is relatively environmentally-friendly; and the resource integration utilization rate is relatively high.

Description

technical field [0001] The invention relates to the technical field of industrial waste salt treatment, in particular to a solidification method of soluble semi-solid waste salt. Background technique [0002] my country is a big country of industrial production. In recent years, the output of waste salt in my country has shown an upward trend. It is estimated that the annual output will exceed 5 million tons, of which the output of the pesticide industry accounts for about 30%, the output of the fine chemical industry accounts for about 15%, and the output of the pharmaceutical industry accounts for about 30%. 10%, and other industries account for about 45%. Among them, solid or semi-solid waste salt, if not disposed of properly, will directly lead to surface water and groundwater pollution, soil pollution, ecological environment damage, land salinization, and deterioration of agricultural production environment. The existing solid waste salt can directly enter the rigid lan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B5/00B09B3/20
Inventor 黄建成丁勇徐春生严心富张小明熊义根佟沐春陈艳
Owner 中节能(连云港)清洁技术发展有限公司
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