The wastewater produced by coal chemical industry contains a large number of complex and toxic pollutants,and arbitrary discharge can cause irreversible damage to the environment.Therefore,a zero emission technology application measure in coal chemical wastewater treatment is proposed and its application effect is explored.After analyzing the nodes of wastewater generation in three coal chemical processes,the study determined the types of pollutants contained within them.It then applied zero discharge technology to coal chemical wastewater treatment.The wastewater meets the reuse standards through pre-treatment,biochemical treatment,advanced treat-ment,saline wastewater treatment,sludge and crystallization salt treatment,etc.If it cannot be recovered,it is converted into solid,achieving zero discharge of wastewater.Through case analysis,it can be seen that the application of zero discharge technology can achieve water balance in mining wastewater,significantly reduce salt content,and avoid water quality pollution.
zero emission technologycoal chemical wastewatermembrane bioreactorcirculating water devicemembrane separa-tion technology
万方数据
维普
