Method for harnessing chemical production thiamine crystallization tank region local geological foundation pollution

A technology of chemical production and crystallization tanks, applied in chemical instruments and methods, restoration of polluted soil, organic fertilizers, etc.
CN101121176BActive Publication Date: 2010-09-15上海宝冶工程技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海宝冶工程技术有限公司
Publication Date
2010-09-15

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Abstract

A harness method for chemically produced thiamin crystallization tank area local geographical base pollution is realized in the following steps: people confirm the treating range and dig deep ditches on the periphery; the building depth is a little greater than the separation wall of the acidification impact depth; drilling holes are arranged in a cinquefoil shape with a hole pitch no less than 1.5 m in the partition area mentioned above and the hole array is arranged into a regular combined well array with one list of grouting well pipes and the other list of pumping well pipe; every four lists of holes is used as grouting and draining unit; the grouting well is infused with treating liquid, the major component of which is Ba(OH)2, macromolecule flocculating agent and water treatment accelerant to form BaSO4 sediment in the soil which is acid and alkali resistant, and hyperbaric; in addition, the sediment can absorb harmful radiations and protect the environment in a way.
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Description

technical field

[0001] The invention relates to the treatment of local geological foundation pollution caused by the production of chemical enterprises, in particular to a treatment method for the local geological foundation pollution of the chemical production thiamine crystallization tank area. Background technique

[0002] In the thiamine area of ​​large iron and steel enterprises, or some coking enterprises, impurities such as SO2 produced during the refining of coke oven gas are converted into ammonium sulfate through a series of processing procedures. Due to a variety of reasons in the process environment and equipment, ammonium sulfate has caused long-term erosion of the soil in the area; at the same time, due to the extensive use of corrosive liquid materials in the production process in this area, these corrosive materials, due to the tilting of storage tanks and waste water collection storage tanks The cracking of the joints with the ground can easily cause the fou...

Claims

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