Research and Prospect of Wastewater Treatment and Resource Utilization Technology in Coal Chemical Industry
Aiming at the present situation of harmless treatment and resource utilization of coal chemical wastewater in China and the new development pattern faced by the industry during the Fourteenth Five-year Plan period,this paper reviews the current situation of wastewater treatment processes in coal chemical industries,including the sources and characteristics of wastewater,wastewater treatment processes and the characteristics of various treatment process technologies.This paper analyzes the characteristics and water quality of the wastewater produced by various coal chemical treatment processes,puts forward the thought of the current typical coal chemical wastewater treatment process,focuses on the analysis of the characteristics of the process technology currently used in each treatment stage,and gives some suggestions on the treatment of coal chemical wastewater.One is to reduce water consumption from the source and improve water reuse rate.On the other hand,it is necessary to strengthen the development and application of"zero discharge"process and the technology of differentiated resource treatment of saline wastewater.Meanwhile,it is suggested that the relevant national competent departments strengthen the policy regulation and support of refinement.
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