Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
Int J Environ Res Public Health. 2019 Nov 27;16(23):4729. doi: 10.3390/ijerph16234729.
The extensive use of pharmaceuticals and personal care products (PPCPs) leads to a continuous increase of their presence in urban wastewater. These pollutants are discharged into natural waters and pose a threat to human health and the ecological environment. This study focused on five sewage treatment plants in three cities of China's Yangtze River Delta as research sites to study the distribution and degradation of drugs and their conversion products in wastewater. The concentration of target compounds in the water ranged from 0 to 510.8 ng/L, and both positive and negative removal rates occurred during the treatment. Acetaminophen (ACE) and ibuprofen (IPF) can be completely removed in the biological treatment stage. The addition of flocculants and sand filtration has a positive effect on the removal of naproxen (NPX) and bezafibrate (BZB). Ultraviolet disinfection is beneficial for the removal of antipyrine (ATP) and diclofenac (DCF). A small amount of PPCPs were found in the sludge and particulate matter, which had little effect on removal. Finally, the risk quotients were used to evaluate the harmfulness of the PPCPs detected in the effluent to the ecological environment, and the results showed that there was little hazard.
药品和个人护理用品（PPCPs）的大量使用导致其在城市废水中的含量持续增加。这些污染物被排放到自然水体中，对人类健康和生态环境构成威胁。本研究以中国长江三角洲地区的三个城市的五座污水处理厂为研究点，研究了污水中药物及其转化产物的分布和降解情况。目标化合物在水中的浓度范围为 0 至 510.8ng/L，在处理过程中同时存在正去除率和负去除率。在生物处理阶段，扑热息痛（ACE）和布洛芬（IPF）可被完全去除。添加絮凝剂和砂滤对萘普生（NPX）和苯扎贝特（BZB）的去除有积极影响。紫外线消毒有利于去除安替比林（ATP）和双氯芬酸（DCF）。在污泥和颗粒物中发现了少量的 PPCPs，它们对去除的影响很小。最后，利用风险商数来评估出水中检测到的 PPCPs 对生态环境的危害性，结果表明危害很小。
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