Coking wastewater coupling treatment system and method

A coking wastewater and treatment system technology, applied in multi-stage water treatment, anaerobic digestion treatment, chemical instruments and methods, etc., can solve the problems of low treatment efficiency, high cost, and inability to stably meet the standard of coking wastewater treatment effluent, and achieve treatment High efficiency, process maintenance, and efficient removal of toxic and harmful substances

Active Publication Date: 2021-06-25
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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Problems solved by technology

[0004] The purpose of the present invention is to provide a coking wastewater coupling treatment system and method, aiming at solving the problems that the existing coking wastewater treatment effluent cannot meet the standard stably, the treatment efficiency is low, and the cost is high

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  • Coking wastewater coupling treatment system and method
  • Coking wastewater coupling treatment system and method

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, the embodiment of the present invention provides a coking wastewater coupling treatment system, including a multi-stage biochemical unit, a contact reaction unit, a coagulation unit, and a precipitation separation unit connected in sequence along the coking wastewater flow direction, and the contact reaction unit is refluxed through the medium The pipeline is connected with the multi-stage biochemical unit, and the sedimentati...

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Abstract

The invention provides a coking wastewater coupling treatment system and method. The system comprises a multi-stage biochemical unit, a contact reaction unit, a coagulation unit and a precipitation separation unit which sequentially communicate with one another in the coking wastewater circulation direction, and the contact reaction unit is connected with the multi-stage biochemical unit through a medium backflow pipeline. The precipitation separation unit is connected with the coagulation unit through a sludge return pipeline. Two-stage backflow is arranged, the sludge / medium backflow efficiency is improved, the technological process is simple, the complicated traditional treatment technological process is shortened while toxic and harmful substances in the coking wastewater are efficiently removed, the technological construction cost and energy medium consumption are reduced, and the treatment efficiency is high.

Description

technical field [0001] The invention belongs to the field of coking wastewater treatment, and in particular relates to a coking wastewater coupling treatment system and method. Background technique [0002] Coking wastewater is toxic and harmful wastewater produced in coking, gas purification, and product processing and preparation. It has the characteristics of wide sources, complex components, and high toxicity. Its organic components include refractory phenolic compounds, heterocyclic compounds, aliphatic compounds and polycyclic compounds, etc.; inorganic components include cyanide, sulfide, ammonia nitrogen, etc., which are refractory high-concentration organic wastewater and are used in the coking metallurgical industry. Recognized as one of the most difficult industrial wastewater, the commonly used industrial wastewater treatment processes, including physical, chemical, and biological methods, are used alone, and it is difficult to effectively treat it to meet the st...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/28C02F2301/08C02F1/28C02F1/54C02F1/56
Inventor 胡正茂高智荣吴朝阳龚浩陈涛冯驰陈国志张春杰
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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