燃煤电厂湿法脱硫废水中砷的脱除技术研究进展

Research progress of arsenic removal technologies of wet flue gas desulfurization wastewater from coal-fired power plants

基于近几年国内外关于砷脱除研究文献,简要综述氧化法、沉淀法、吸附法、生物处理法在废水除砷中的应用。针对国内燃煤电厂脱硫废水处理现有的工艺条件,总结了砷在整个废水处理流程中的脱除方式,并对存在的不足提出几点建议。

Based on the research literature in the past few years at home and abroad,the applications of the oxidation method,precipitation method,adsorption method,and biological treatment in the arsenic removal from wastewater are reivewed. The existing process conditions of desulfurization wastewater treatment in coal-fired power plant are discussed. The arsenic removal methods in the whole wastewater treatment process are summarized. Some suggestions about improvement of the arsenic removal rate are put forward as well.