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化学工业与工程 2019, Vol. 36 Issue (1) :24-37    DOI: 10.13353/j.issn.1004.9533.20181067
工业废水处理技术专辑 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << | >>
零排放形势下热电厂脱硫废水处理进展及展望
郑利兵1,2,3, 魏源送1,2,3, 焦赟仪4, 王钢5, 岳增刚5
1. 环境模拟与污染控制国家重点联合实验室, 中国科学院生态环境研究中心, 北京 100085;
2. 中国科学院大学, 北京 100049;
3. 工业废水与资源化北京市重点实验室, 北京 100085;
4. 南华大学土木工程学院, 湖南 衡阳 421001;
5. 华能嘉祥发电有限公司, 山东 济宁 272400
Status and Prospect of Zero Liquid Discharge Technologies for Flue Gas Desulfurization Wastewater in Thermal Power Plant
Zheng Libing1,2,3, Wei Yuansong1,2,3, Jiao Yunyi4, Wang Gang5, Yue Zenggang5
1. State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Beijing 100085, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Beijing 100085, China;
4. School of Civil Engineering, University of South China, Hunan Hengyang 421001, China;
5. Huaneng Jiaxiang Power Generation Co. Ltd., Shandong Jining 272400, China

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摘要 针对国内愈益严格的环保政策及逐渐深入的零排放形势,结合脱硫废水的水质和主要问题,综述了热电厂脱硫废水的传统处理工艺和零排放工艺的研究与应用现状。脱硫废水具有高悬浮物、高盐、水质复杂、波动大等特征,传统处理工艺主要存在效果不稳定、产水不达标、结垢腐蚀严重和浓盐水排放问题。简述了脱硫废水传统处理工艺及其改进工艺的研究与应用现状,指出其在零排放形势下已不满足处理要求,而逐渐转换为预处理工艺。重点论述了零排放组合工艺的预处理、重金属去除、浓缩减量和盐结晶固化单元工艺的研究与进展,总结了目前脱硫废水零排放技术的发展进程,并分析总结了若干典型应用案例,指出"膜分离+蒸发结晶"组合工艺将会成为深度处理与零排放的关键工艺。零排放是未来热电厂脱硫废水处理的主要途径,亟需加快新材料、新装备、新工艺等在脱硫废水零排放的工业化应用进程。
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郑利兵
魏源送
焦赟仪
王钢
岳增刚
关键词脱硫废水   零排放   膜分离技术   蒸发结晶   预处理     
Abstract: The application and research status of flue gas desulfurization wastewater (FGDW) treatment technologies were reviewed under the more and more strict environmental policies and the intensive requirements of zero liquid discharge (ZLD) in China. With high suspend solids (SS), high salinity, complicated composition, and significant fluctuation of the FGDW, conventional treatment technologies of the FGDW face big challenges such as unstable performance which cannot meet with the discharge standard, serious scaling and corrosion issue, and concentrate discharge, etc. The application of conventional treatment technologies and their improved processes were mainly reviewed, which cannot meet with the standard and have been transferred to pretreatment process in ZLD application. Then the ZLD technologies for FGDW and their development trend were carefully reviewed in terms of pretreatment process, heavy metal removal processes, wastewater concentration and reduction technologies, and salts crystallization technologies. And the research & development of ZLD technologies for FGDW wastewater and some typical application cases of ZLD project were summarized, and the combination of membrane separation, evaporation and crystallization will be the key technologies for the ZLD of FGDW treatment. It was believed that ZLD treatment would become the major approach in the ZLD of FGDW, and the development of new materials, equipments, and technologies will promote the industrial application of ZLD project for FGDW in thermal power plant.
Keywordsflue gas desulfurization wastewater;   zero liquid discharge;   membrane separation;   evaporation-crystallization;   pretreatment     
Received 2018-11-14;
Fund:国家水体污染控制与治理科技重大专项课题(2015ZX07203-005)。
Corresponding Authors: 魏源送,E-mail:yswei@rcees.ac.cn     Email: yswei@rcees.ac.cn
About author: 郑利兵(1989-),男,博士,助理研究员,现从事膜法水处理及膜污染方面的研究。
引用本文:   
郑利兵, 魏源送, 焦赟仪, 王钢, 岳增刚.零排放形势下热电厂脱硫废水处理进展及展望[J].  化学工业与工程, 2019,36(1): 24-37
Zheng Libing, Wei Yuansong, Jiao Yunyi, Wang Gang, Yue Zenggang.Status and Prospect of Zero Liquid Discharge Technologies for Flue Gas Desulfurization Wastewater in Thermal Power Plant[J].  Chemcial Industry and Engineering, 2019,36(1): 24-37
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