中文关键词药物及个人护理品(PPCPs)河道水旁路处理生态风险生物处理臭氧 英文关键词pharmaceuticals and personal care products (PPCPs)river water bypass treatmenteco-toxicological riskbiological treatmentozone

作者	单位	E-mail
李力	清华大学环境学院, 环境模拟与污染控制国家重点实验室, 北京 100084 北控水务(中国)投资有限公司, 北京 100102	ll@bewg.net.cn
朱栟	北控水务(中国)投资有限公司, 北京 100102
白瑶	北控水务(中国)投资有限公司, 北京 100102
赵健	北控水务(中国)投资有限公司, 北京 100102
曹之淇	北控水务(中国)投资有限公司, 北京 100102
郭泓利	北控水务(中国)投资有限公司, 北京 100102
李凌云	北控水务(中国)投资有限公司, 北京 100102
左剑恶	清华大学环境学院, 环境模拟与污染控制国家重点实验室, 北京 100084	jiane.zuo@mail.tsinghua.edu.cn

中文摘要 城市河道水中含有微量药物及个人护理品（pharmaceuticals and personal care products，PPCPs），具有一定生态风险.本文系统考察了两种河道水旁路处理工艺（混凝沉淀-曝气生物滤池-超滤-臭氧和混凝沉淀-膜生物反应器-臭氧）对30种高检出PPCPs的去除效果，并通过沿程去除率调查和风险商模型分别评价了目标PPCPs的降解机制及整体生态风险的降低情况.结果表明，两种旁路处理工艺对各目标PPCPs均有较好去除效果；其中四环素类抗生素及咖啡因在生物段去除率超过90%，而磺胺类及氟喹诺酮类抗生素及其他药物仅在进水化学需氧量较高和较高水温条件下具有较好去除效果，但臭氧深度处理可对其进行有效削减；经全流程处理后各PPCPs累积去除率均可达92.5%以上.旁路处理可有效降低目标PPCPs生态风险，经处理后风险商值由原水的12.6降至总出水的0.2（风险阈值RQ_tot=1），去除率达98.4%. 英文摘要 The pharmaceuticals and personal care products (PPCPs) released into urban rivers are triggering certain ecological risks. The current study investigated the removal efficiencies of 30 frequently detected PPCPs by two river water bypass treatment processes (CS-BAF-UF-Ozone and CS-MBR-Ozone), and investigated the removal mechanism and eco-toxicological risk variation of target compounds via section-removal investigation and risk quotient model, respectively. Results indicated that both processes could efficiently remove the target PPCPs; the removal rates of tetracyclines and caffeine were>90% in the biological sections, while sulfonamides, fluoroquinolones, and other pharmaceuticals could only be efficiently removed when the COD of the influent and the water temperature were comparatively higher; the ozone process had particular effect on removing these compounds. The cumulative removal rate of all PPCPs during the whole process was higher than 92.5%. The total risk quotient (RQ_tot) of target PPCPs could be efficiently reduced by the bypass treatment processes; the RQ_tot decreased from 12.6 in the influent river water to 0.2 in the ozone effluent, with a removal rate of 98.4%.

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