Desulfurization waste water from COG desulfuration unit contains high concentrations toxics,which,if discharged without being treated,would jeopardize biochemical system running even deactivate the biochemical system.Hanbao Coking Plant cooperates with Chinese Academy of Sciences to study the detoxification for the desulfurization waste water of vacuum potassium carbonate process and treat the high sulfur and cyanide waste water by sedimentation and coagulation technology,which has achieved a good result.

Vacuum potassium carbonate process； Desulfurization waste water, Pretreatment; Biochemical system