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System and method for treatment and recycling of coking phenol-cyanogen wastewater

A technology of cyanide wastewater and coking phenol, which is applied in the field of coking phenol cyanide wastewater treatment and reuse system, can solve the problem that coking phenol cyanide wastewater is difficult to reuse

Inactive Publication Date: 2012-08-01
北京能泰高科环保技术有限公司
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Problems solved by technology

[0003] Aiming at the defects or deficiencies in the prior art, the present invention provides a coking phenol cyanide wastewater treatment and reuse system and method, which are used to solve the problem that the existing coking phenol cyanide wastewater is difficult to reuse

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  • System and method for treatment and recycling of coking phenol-cyanogen wastewater

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Embodiment Construction

[0019] Below with the accompanying drawings ( Figure 1-Figure 2 ) to illustrate the present invention.

[0020] figure 1 It is the first structural schematic diagram of a coking phenol cyanide wastewater treatment and recycling system implementing the present invention. figure 2 It is the second structural schematic diagram of a coking phenol cyanide wastewater treatment and recycling system implementing the present invention. Such as figure 1 and figure 2 As shown, a coking phenol cyanide wastewater treatment and reuse system is characterized in that it includes a coking phenol cyanide wastewater biochemical pretreatment subsystem 100 and a three-membrane advanced treatment subsystem 200 connected thereto; the coking phenol cyanide wastewater biochemical pretreatment Subsystem 100 comprises anaerobic biofilm reactor 110, anoxic biofilm reactor 111 and aerobic bioreactor 112 connected in sequence, and described aerobic bioreactor 112 connects advection sedimentation tan...

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Abstract

A system and a method for treatment and recycling of coking phenol-cyanogen wastewater are used for solving the problem of difficulty in recycling of existing coking phenol-cyanogen wastewater. The system is characterized by comprising a coking phenol-cyanogen wastewater biochemical pretreating subsystem and a three-membrane method deep treating subsystem connected with same. The coking phenol-cyanogen wastewater biochemical pretreating subsystem comprises an anaerobic biological membrane reactor, an anoxic biological membrane reactor and aerobic biological membrane reactor in sequential connection, wherein the aerobic biological membrane reactor is connected with a horizontal flow sedimentation tank which is further connected with a coagulation reaction tank, and the coagulation reaction tank is connected with an oblique-plate sedimentation tank which is in connection with a first middle water tank. The three-membrane method deep treating subsystem comprises a ceramic membrane filter, an ultrafiltration membrane filter and a nanofiltration membrane filter, wherein the ceramic membrane filter is connected with the first middle water tank and further connected with the ultrafiltration membrane filter through a second middle water tank, and the ultrafiltration membrane filter is connected with the nanofiltration membrane filter through a third middle water tank.

Description

technical field [0001] The invention relates to the field of coking phenol cyanide wastewater treatment, in particular to a coking phenol cyanide wastewater treatment and reuse system and method, which are used to solve the problem that the existing coking phenol cyanide wastewater is difficult to reuse. Background technique [0002] Coking phenol cyanide wastewater is the wastewater produced in the process of coal coking, gas purification and coking by-products processing and refining. It is a wastewater containing high concentration of phenol and cyanide. Industrial wastewater containing refractory organic pollutants. This waste water mainly comes from four parts: residual ammonia water, crude benzene separation water, final cooling surplus water, and tar separation water. The amount of wastewater is large and the composition of water quality is complex. In addition to high concentrations of phenol, cyanide, oil, ammonia nitrogen, etc., it also contains polycyclic or hete...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 刘彦华刘雪冬李春和周卫兵张利利
Owner 北京能泰高科环保技术有限公司
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