华电技术 ›› 2017, Vol. 39 ›› Issue (12): 46-49.

• 节能与环保 • 上一篇    下一篇

燃煤电厂高盐废水零排放处理工艺及技术经济分析

  

  1. 1.华电电力科学研究院,杭州〓310030; 2.华电潍坊发电有限公司,山东潍坊〓261200
  • 出版日期:2017-12-25 发布日期:2018-01-10

Technical and economic analysis of “zero emission” treatment of  high salinity wastewater from coalfired power plants

  1. 1.Huadian Electric Power Research Institute, Hangzhou 310030, China;2.Huadian Weifang Power Generation Company Limited, Weifang 261200, China
  • Online:2017-12-25 Published:2018-01-10

摘要:

某电厂废水经过梯级利用和浓缩处理后产生50m3/h的高盐废水,高盐废水经深度浓缩后产生末端废水,末端废水进行蒸发结晶处理后实现废水“零排放”。介绍了碟管式反渗透、电渗析、正渗透、蒸汽机械压缩等深度浓缩技术以及多效强制循环蒸发、机械蒸汽再压缩蒸发、烟道雾化蒸发等蒸发结晶工艺,并进行了技术经济分析,为燃煤电厂高盐废水“零排放”处理工艺的选择提供依据。

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Abstract:

In a power station,wastewater dealt with the cascade utilization and enrichment, produces 50m3/h, high salinity waste water. Terminal wastewater, which come from deep concentrated high salinity waste water, will evaporate , crystallize and finally achieve zero emissions of wastewater. There is introductions about concentration technologies such as the disctube reverse osmosis, electrodialysis, positive osmosis, decumbent membrane steaming, and mechanical vapor compression (MVC), and evaporation crystallization process such as multiple effect distillation (MED), mechanical vapor recompression (MVR) and mechanical vapor compression (MVC). It provides the basis for choosing ideal treatment process to achieve the zero emission of high salinity waste water from coalfired power plant.

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