火力发电厂脱硫废水“零排放”技术路线分析

Analysis on the Technical Route of "Zero Emission" of Desulfurization Wastewater in Thermal Power Plant

随着中国水环保政策趋于严控,火力发电厂脱硫废水"零排放"理念不断升温。脱硫废水是火电厂最难处理的末端废水之一,单一技术路线的废水处理方案往往难以兼顾目标与成本。对国内外脱硫废水处理工艺进行分析,寻求各方案间择优组合、分步建设的技术线路,为火电厂实现脱硫废水"零排放"目标提供参考。

As China’s water environmental protection policy tends to be strict, the concept of "zero emission" of desulfurization wastewater in thermal power plants is heating up. Desulfurization wastewater is one of the end wastewater most difficult to be treated in thermal power plants. It is often difficult to balance the objectives and costs with wastewater treatment scheme of a single technical route. This paper analyzed the treatment process of desulfurization wastewater at home and abroad, and seeked the technical route of optimal combination and step-by-step construction among various schemes to provide reference for the realization of the "zero emission" goal of desulfurization wastewater in thermal power plants.