In-situ sludge ozone-reduction process for effective removal of fluoroquinolone antibiotics in wastewater treatment plants

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	In-situ sludge ozone-reduction process for effective removal of fluoroquinolone antibiotics in wastewater treatment plants
	Wang, Lu ; Li, Yangang ; Ben, Weiwei ; Hu, Jun ; Cui, Zhengguo ; Qu, Keming ; Qiang, Zhimin
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2019-04-15
卷号	213 页码:419-425
关键词	Fluoroquinolones Sludge reduction Ozone Wastewater treatment plant
ISSN号	1383-5866
英文摘要	To date, little is known about the removal of fluoroquinolones (FQs) in the in-situ sludge ozone-reduction (SOR) process. Hence, this study investigated the behavior of five commonly used FQs, including ciprofloxacin, enrofloxacin, lomefloxacin, norfloxacin and ofloxacin in the SOR process. Batch experiments indicated that ozonation could effectively eliminate the target FQs present in the sludge, which was accelerated by increasing the initial pH (5.0-9.5). Continuous operation of an anaerobic/anoxic/oxic process coupled with sludge ozonation and phosphorus recovery showed that the SOR process could achieve zero yield of excess sludge. In addition, chemical oxygen demand and nitrogen species were stably removed, with efficiencies comparable to those obtained in the conventional activated sludge (CAS) process. However, an increase in the effluent total phosphorus concentration was observed in the SOR process. The effluent FQ concentrations in the SOR process remained quite stable and were close to those in the CAS process, whereas the FQ concentrations in the sludge decreased remarkably after ozonation. Mass balance analysis revealed that the FQs were released to the environment mainly through excess sludge disposal (69.9 +/- 2.3%) in the CAS process, whereas were degraded mainly by ozone in the SOR process (75.8 +/- 2.0%). Therefore, the SOR process was able to minimize the excess sludge and the release of FQs to the environment simultaneously.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43479]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Drinking Water Sci & Technol, Res Ctr Ecoenvironm Sci, Univ Chinese Acad Sci, 18 Shuang Qing Rd, Beijing 100085, Peoples R China 2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Marine Fishery Environm & Bioremediat Lab, Qingdao 266071, Peoples R China 3.Zhejiang Univ Technol, Coll Environment, 18 Chao Wang Rd, Hangzhou 310014, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lu,Li, Yangang,Ben, Weiwei,et al. In-situ sludge ozone-reduction process for effective removal of fluoroquinolone antibiotics in wastewater treatment plants[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,213:419-425.
APA	Wang, Lu.,Li, Yangang.,Ben, Weiwei.,Hu, Jun.,Cui, Zhengguo.,...&Qiang, Zhimin.(2019).In-situ sludge ozone-reduction process for effective removal of fluoroquinolone antibiotics in wastewater treatment plants.SEPARATION AND PURIFICATION TECHNOLOGY,213,419-425.
MLA	Wang, Lu,et al."In-situ sludge ozone-reduction process for effective removal of fluoroquinolone antibiotics in wastewater treatment plants".SEPARATION AND PURIFICATION TECHNOLOGY 213(2019):419-425.