不同再生水处理工艺出水水质回用途径适应性分析  

Analysis about reuse approach adaptability for effluent quality from different reclaimed water treatment processes

作　　者：张庆康[1,2] 郝瑞霞[1] 刘峰[1] 赵继成[3] 杨英杰[3] 

机构地区：[1]北京工业大学建筑工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124 [2]中国建筑设计研究院,北京100044 [3]北京京城中水有限责任公司,北京100078

出　　处：《环境工程学报》2013年第1期91-96,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(50778004)

摘　　要：为分析典型再生水处理工艺出水的回用途径适应性,采用标准指数法评价了4座不同处理工艺的再生水厂出水质量,为再生水处理工艺选择和安全回用提供参考。结果表明,4种再生水处理工艺出水用于市政杂用水时基本是安全的;除反渗透(RO)工艺外,其他工艺出水回用于景观环境用水时都存在氮磷指标超标问题;膜处理工艺的出水可以满足工业用水标准,但是常规絮凝过滤工艺出水用作工业用水应注意氮磷等指标的进一步处理;各种再生水处理工艺出水质量均不能满足地下水回灌用水标准,主要是氨氮和环境激素DBP超标问题,用作地下水回灌用水时存在一定的环境风险。The treated effluent quality of four different technologies types of reclaimed water treatment plants was evaluated with the standard index method in order to analyze the adaptability of the reuse approaches of treated effluents from typical reclaimed water treatment processes. This study could be a valuable reference to the selection of reclaimed water treatment processes and the security of reuse. The results of the study indicated that the reclaimed water treated by the four types of the treatment processes was basically safe to be used for mu- nicipal water usage. However, they all have different problems with meeting the relevant standards on certain kinds of water utilisation. The reclaimed waters treated by the treatment processes, except treated by RO process, all have problems with their nitrogen and phosphorus concentration exceeding the seandalised concentra- tion in the case of being used for landscape purpose. The effluent water treated by membrane process could meet the requirements of the standard on industrial water usage. The reclaimed water treated by conventional floccula- tion filtration process requires further treatment on nitrogen and phosphorus removal. According to the water qual- ity standard for recharging ground water, the reclaimed water treated by the four processes can not to be applied to recharge ground water because of the major concern on the over-standard of ammonia and DBP（ a kind of envi- ronmental hormones） , which can cause a certain risk to the environment.

关 键 词：再生水 水质 处理工艺 回用途径 

分 类 号：X824[环境科学与工程—环境工程]