Study on Pretreatment of Coking Wastewater

摘要

Coking wastewater is one of the main waste coal chemical industry produces, which contains many toxic substances. It will cause serious impact to the environment. At present, biochemical treatment, which is used for the treatment of coking wastewater, is the principal method to solve this problem. Since the coking waste water has very low biodegradability for its composition of macromolecular organic compounds, we confirm that the pretreatment has become the key. In this paper, we used Ozonation for pretreatment, analyzed of test results, and obtained desired results which can provide basic parameters for engineering.