| 无锡市污水处理厂抗生素抗性菌分布与去除特性研究 |
| |
| 引用本文： | 刘亚兰,李冰,邱勇,丁河舟,王燕,王硕,李激.无锡市污水处理厂抗生素抗性菌分布与去除特性研究[J].环境科学学报,2017,37(6):2114-2121. |
| |
| 作者姓名： | 刘亚兰 李冰 邱勇 丁河舟 王燕 王硕 李激 |
| |
| 作者单位： | 江南大学环境与土木工程学院, 无锡 214122,清华大学环境学院, 北京 100084,清华大学环境学院, 北京 100084,江南大学环境与土木工程学院, 无锡 214122,江南大学环境与土木工程学院, 无锡 214122,1. 江南大学环境与土木工程学院, 无锡 214122;3. 江苏省厌氧生物技术重点试验室, 无锡 214122;4. 江苏高校水处理技术与材料协同创新中心, 苏州 215009,1. 江南大学环境与土木工程学院, 无锡 214122;3. 江苏省厌氧生物技术重点试验室, 无锡 214122;4. 江苏高校水处理技术与材料协同创新中心, 苏州 215009 |
| |
| 基金项目： | 国家水体污染控制与治理科技重大专项（No.2015ZX07306-001）；江苏省重点研发计划（社会发展）科技示范工程项目（No.BE2015622） |
| |
| 摘 要： | 近年来,污水处理厂已成为环境中抗生素抗性菌的重要来源.本研究利用传统的异养菌培养法对无锡市6座污水处理厂进出水中的5种抗生素(氨苄霉素、红霉素、四环素、卡那霉素、环丙沙星)抗性菌进行调查与分析,并对比了在不同工艺和不同季节条件下抗性菌的去除效果.结果表明,5种抗性菌在污水处理厂进出水中均可检出,进水中抗性菌浓度为103~10~5CFU·m L~(-1),出水中抗性菌浓度为10~2~10~4CFU·m L~(-1),其中,氨苄霉素抗性菌最多,占总异养菌的比例超过50%.污水处理工艺没有选择性去除抗性菌的效果,出水中抗性菌占总异养菌的比例相对于进水有增加趋势.相比其它传统工艺(氧化沟、SBR等),MBR工艺对去除氨苄霉素、红霉素抗性菌表现出一定优势;夏季目标污水处理厂对抗性菌的去除量略多于冬季,且只有环丙沙星抗性菌的去除量表现出显著的季节性差异(p0.05).
|
| 关 键 词： | 污水处理厂 抗生素抗性菌 氨苄霉素抗性菌 |
| 收稿时间： | 2016/9/14 0:00:00 |
| 修稿时间： | 2017/3/14 0:00:00 |
Distribution and removal characteristics of antibiotic resistant bacteria in wastewater treatment plants at Wuxi |
| |
| LIU Yalan,LI Bing,QIU Yong,DING Hezhou,WANG Yan,WANG Shuo and LI Ji.Distribution and removal characteristics of antibiotic resistant bacteria in wastewater treatment plants at Wuxi[J].Acta Scientiae Circumstantiae,2017,37(6):2114-2121. |
| |
| Authors: | LIU Yalan LI Bing QIU Yong DING Hezhou WANG Yan WANG Shuo and LI Ji |
| |
| Institution: | School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122,School of Environment, Tsinghua University, Beijing 100084,School of Environment, Tsinghua University, Beijing 100084,School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122,School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122,1. School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122;3. Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122;4. Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009 and 1. School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122;3. Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi 214122;4. Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou 215009 |
| |
| Abstract: | In recent years, wastewater treatment plants (WWTPs) became an important source of antibiotic resistant bacteria (ARB).Therefore, the investigation and analysis concerning ampicillin, erythromycin, tetracycline, kanamycin and ciprofloxacin resistant bacteria in six WWTPs at Wuxi were carried out, and the removal characteristics by different wastewater treatment processes and seasons were further studied based on the traditional heterotrophic bacteria culture method.The experimental results showed that these five kinds of ARB could all be detected within influent and effluent, and the concentrations of ARB in the influent were up to 103~105 CFU·mL-1, while in the effluent the relative quantities were about 102~104 CFU·mL-1.Ampicillin resistant bacteria were dominant in these five kinds of ARB and the ratio of ampicillin resistant bacteria to total heterotrophic bacteria was higher than 50%.However, there is no significant ARB removal selectivity by different wastewater treatment processes and the ratio of ARB to total heterotrophic bacteria increased in effluent.Compared with conventional activated sludge processes (oxidation ditch and SBR), membrane bioreactor (MBR) process presented good performances in ampicillin and erythromycin resistant bacteria removal.In addition, the removal of ARB in summer was slightly higher than that in winter, yet only ciprofloxacin resistance bacteria showed significant seasonal difference (p<0.05). |
| |
| Keywords: | wastewater treatment plant antibiotic resistant bacteria ampicillin resistant bacteria |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
