热电厂脱硫废水近零排放改造技术

Near zero-liquid discharge transformation technology of desulfurization wastewater from thermal power plant

西北地区某热电厂脱硫废水近零排放系统采用预处理+软化+超滤+反渗透+MVR结晶工艺。单位水处理成本约为55.21元/m^(3)。系统处理效果稳定、技术先进,实现了超过80%的废水回用。该工艺实现浓水减量,降低了投资及运行成本。

The zero discharge system of desulfurization wastewater form thermal Power Plant in northwest china adopts process of pretreatment,softening,ultrafiltration,reverse osmosis and MVR evaporation crystallization process.The treatment cost per ton of water is about 55.21 yuan.The treatment effect of the system was stable,and more than 80%of the wastewater was reused.