煤化工项目生产排水处理工艺及回用

Treatment technology and reuse of production drainage in coal chemical project

生产排水经“机械搅拌澄清池-多介质过滤器-超滤-反渗透”工艺处理,通过对设计工艺装置的调整,优化操作及运行数据确定,并对运行工况及系统稳定性进行叙述。经该工艺处理,系统运行较平稳,出水水质满足《污水再生利用工程设计规范》(GB/T50335-2002)的要求。由于原设计未考虑污水处理单元高COD、高氨氮来水,现场实际还需对工艺处理单元、操作控制等进行完善优化。

Production drainage is treated by the process of"mechanical agitation clarifier-multi-media filter-ultrafiltration-reverse osmosis".By adjusting the design process unit,chemical operation and determination of operation data,the operation conditions and system stability are described.After the process treatment,the system runs smoothly.The effluent quality meets the requirements of Code for Design of Wastewater Recycling Engineering(GB/T50335-2002).Because the original design did not consider the water from sewage treatment unit with high COD and ammonia nitrogen,it is necessary to optimize the process unit and operation control.