焦化废水生化处理工艺进展

Development of Biochemical Process for Treating Coke Plant Wastewater

煤炭作为中国的主要能源,炼焦和精制焦炉煤气过程中产生的焦化废水带来的污染一直严重,焦化废水处理的研究一直是国内外环境工作者关注的焦点之一。主要从有机物和氨氮去除的角度,概述了近年来国内外焦化废水生化处理工艺的研究进展,包括脱氮工艺、新型反应器工艺、生物强化技术工艺和物化预处理工艺等,并指出焦化废水的深度处理是实现清洁生产和循环经济必要条件。

Coal is one of the main energy resources in China. However, pollution caused by coke plant and coal gasification wastewater is severe, and the treatment of the coke plant wastewater is always the focus of environmental staffs in the world. In the aspects of the removal of organic substances and ammonia nitrogen, research advances in biochemical process for coke plant wastewater treatment at home and aboard in recent years were introduced assorting to nitrogen removal technology, new types bioreactors process, bio - augmentation process, physicochemical pretreatment process, etc. It was also concluded that the advanced treatment of coke plant wastewater would be necessary for cleaner production and cycle economy.