Method for synchronously and efficiently removing hexavalent chromium and trichloroethylene combined pollution

A technology of trichloroethylene and compound pollution, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problem of inability to achieve simultaneous removal of hexavalent chromium-trichloroethylene compound pollution, and achieve abundant reserves. , Improve dissolution and corrosion ability, increase the effect of exposed area
CN113979527AInactive Publication Date: 2022-01-28INST OF SOIL SCI CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF SOIL SCI CHINESE ACAD OF SCI
Publication Date
2022-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for synchronously and efficiently removing hexavalent chromium and trichloroethylene combined pollution, which is characterized by comprising the following steps of: adding an attapulgite-nano zero-valent iron composite material into polluted water containing hexavalent chromium and trichloroethylene, adding sodium persulfate, oscillating at the constant temperature of 25 DEG C for 24 hours, and synchronously removing hexavalent chromium and trichloroethylene. The method is simple, convenient and rapid, and the pollutant removal condition can be accurately judged. According to the method, agglomeration of the zero-valent iron is reduced, the activity and the utilization rate of the attapulgite-nano zero-valent iron are remarkably improved, and the method has the advantages of high synchronous removal efficiency of hexavalent chromium and trichloroethylene, low cost and the like, and has a very good application prospect in heavy metal-chlorinated hydrocarbon combined pollution remediation.
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Description

technical field

[0001] The invention belongs to the technical field of water pollution control, and relates to a method for efficiently synchronously removing hexavalent chromium and trichlorethylene composite pollution, in particular to an attapulgite-nano-zero-valent iron composite material-sodium persulfate system for efficiently synchronously removing hexavalent chromium and trichlorethylene. The method of combined pollution of chromium and trichlorethylene. Background technique

[0002] With the development of industrial economy and the influence of human activities, pollutants in the environment rarely exist alone, and different types of pollutants enter the same environment at the same time or successively and affect each other, forming compound pollution is very common in chemical industry parks and other areas ; In its groundwater, complex pollution is common and is a serious environmental problem. For example, the typical compound pollution of inorganic heavy meta...

Claims

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