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Coal chemical wastewater treatment device and process

A coal chemical wastewater and treatment device technology, applied in the direction of oxidation water/sewage treatment, water/sewage treatment, water treatment parameter control, etc., can solve the pollution of inaccurate dosage of chemicals, membrane elements and membrane element biofilm clogging, etc. problems, to achieve the effect of reducing the dosage of ozone, reducing the dosage of fungicides, and reducing the practical dosage

Pending Publication Date: 2021-11-30
CISDI RES & DEV CO LTD
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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a coal chemical wastewater treatment device and process to solve the technical problems of inaccurate dosage of chemicals during flocculation and precipitation reactions in traditional devices and processes, polluting membrane elements and membrane element biofilm clogging, And reduce the input of ozone and fungicides, prolong the service life of activated carbon

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  • Coal chemical wastewater treatment device and process

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[0031] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0032] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a coal chemical wastewater treatment device and process, belonging to the technical field of wastewater treatment. The device is sequentially provided with a flocculation reaction-sedimentation tank, a catalytic ozonation device, a biological activated carbon filter tank, an ultrafiltration unit and a reverse osmosis unit which communicate with each other along a water inlet direction, wherein the flocculation reaction-sedimentation tank adopts an integrated structure and is coupled with a dosing system connected with the flocculation reaction-sedimentation tank; the ozone catalytic oxidation device is coupled with the biological activated carbon filter tank; and the flocculation reaction-sedimentation tank is provided with image recognition equipment, and the image recognition equipment is used for recognizing and comparing floc in the flocculation reaction-sedimentation tank and feeding a result back to a chemical adding system to control a chemical adding amount. The device and the process in the invention solves the technical problem of blockage of a biological membrane in a membrane element caused by membrane element pollution due to inaccurate chemical dosage during flocculation and precipitation reaction in traditional devices and processes, reduce the dosage of ozone and bactericide, and prolong the service life of activated carbon.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and relates to a coal chemical wastewater treatment device and process. Background technique [0002] With the increasing national environmental protection standards and stricter environmental requirements, the importance of wastewater reuse has become increasingly prominent. The components of coal chemical wastewater vary with the processing technology, mainly including coal gas wastewater, coal oil wastewater, coal coke wastewater, coal methanol, and olefin wastewater. However, they all contain aromatic compounds and heterocyclic compounds. The composition of the wastewater is complex and the concentration of pollutants is high. The toxic substances of phenol and cyanide in the wastewater inhibit the activity of microorganisms. The biodegradability of the wastewater is poor and it is not easy to biodegrade. The biochemical water pollutants are mainly refractory macromolecular orga...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/34C02F1/78C02F1/72C02F1/56C02F1/52C02F1/44C02F1/28
CPCC02F9/00C02F1/5245C02F1/56C02F1/283C02F1/725C02F1/78C02F3/34C02F1/444C02F1/441C02F2209/08C02F2209/10
Inventor 赵二华余云飞
Owner CISDI RES & DEV CO LTD
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