现代煤化工废水近零排放技术集成与优化建议  

RECOMMENDATIONS ON INTEGRATION AND OPTIMIZATION OF NEAR-ZERO DISCHARGE TECHNOLOGY FOR WASTEWATER FROM MODERN COAL CHEMICAL INDUSTRY

作　　者：张文 林长喜[1] 彭永臻[2] ZHANG Wen;LIN Chang-xi;PENG Yong-zhen(National Petroleum and Chemical Planning Institute,Beijing 100013,China;National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]石油和化学工业规划院,北京100013 [2]北京工业大学城镇污水深度处理与资源化利用技术国家工程实验室,北京100124

出　　处：《环境工程》2021年第11期41-45,109,共6页Environmental Engineering

基　　金：国家自然科学基金创新研究群体项目(62021003);污水生物处理与过程控制技术北京市国际科技合作基地资助。

摘　　要：文章介绍了现代煤化工产业的发展现状及其面临的环境挑战,并对现代煤化工废水组成及特性进行了分析。通过对有机废水和含盐废水进行分类收集、分质处理、分级回用,现代煤化工废水处理系统从重视单元技术发展为统筹考虑工艺衔接和源头治理的关键技术集成,形成了废水预处理-生化处理-再生水回用-含盐废水膜处理-蒸发结晶处理的基本技术框架。同时,针对现代煤化工项目废水处理系统实际运行中出现的问题进行分析,提出解决思路,优化技术集成,进一步破解现代煤化工废水近零排放的技术瓶颈,降低废水近零排放的经济成本并提高运行稳定性。This paper introduced the development status and environmental challenges of modern coal chemical industry,and analyzed the composition and characteristics of wastewater in modern coal chemical industry.Through the classification and collection,treatment and reuse for organic wastewater and salinity wastewater,the focus of the wastewater treatment system in modern coal chemical industry has evolved from unit technology to key technology integration considering process convergence and control from the source,forming the basic technical framework of Wastewater Pretreatment-Biological Treatment-Reuse of Reclaimed Wastewater-Membrane Treatment of Salinity Wastewater-Evaporative Crystallization Treatment.At the same time,the paper analyzed the problems in the actual operation of wastewater treatment system of modern coal chemical projects,put forward solutions and optimized the integration of the technologies,further broke through the technical bottleneck of near-zero discharge for wastewater in modern coal chemical industry,reduced the economic cost of near-zero discharge,and improved the stability of operation.

关 键 词：现代煤化工 废水处理 近零排放 技术集成 优化 

分 类 号：X784[环境科学与工程—环境工程]