广东电力2018，Vol.31Issue(5)：28-34,7.DOI:10.3969/j.issn.1007-290X.2018.005.005
燃煤电厂脱硫废水零排放工程的设计与应用
Design and Application of Desulfurization Wastewater Zero Discharging Project of Coal-fired Power Plant
蔡继东 1万忠诚 2张庭怿3
作者信息
- 1. 国投电力控股股份有限公司,北京 100034
- 2. 盛发环保科技(厦门)有限公司,福建 厦门 361022
- 3. 南昌大学,江西南昌 330031
- 折叠
摘要
Abstract
The basic principles of design on water treatment of the power plant is to realize classified process,cascade utiliza-tion and near-zero discharging of wastewater,and the key point of zero discharging of wastewater is zero discharging of des-ulfurization wastewater. Therefore,this paper summarizes technical routes and technological characteristics of zero dischar-ging of desulfurization wastewater. Aiming at application conditions of technologies and water quality features of the pro-ject,it designs the technical route of preprocessing for two-state precipitation and softening+seawater reverse osmosis (SWRO)concentrating and decrement+bypass gas flue evaporation. Preprocessing for two-state precipitation can effective save dosage costs and realize full softening of water quality,and ensure inflow condition of the follow-up concentrating and decrement unit. The evaporated crystal substances are captured by the deduster with dust in the exhaust gas and finally enter into coal ash for recycling utilization. There are no any extra solid waste products which means realization of zero dischar-ging. Experimental results prove effectiveness of this technical route.关键词
脱硫废水/零排放/旁路烟道蒸发/二级沉淀/结晶盐/资源化利用Key words
desulfurization wastewater/zero discharging/bypass gas flue evaporation/two-stage precipitation/crystalloid salt/recycling utilization分类
资源环境引用本文复制引用
蔡继东,万忠诚,张庭怿..燃煤电厂脱硫废水零排放工程的设计与应用[J].广东电力,2018,31(5):28-34,7.
