| 间歇曝气式膜生物反应器对养猪沼液中兽用抗生素的去除特性 |
| 摘要点击 2140 全文点击 1399 投稿时间：2015-03-26 修订日期：2015-06-30 |
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| 中文关键词 抗生素 膜生物反应器 猪场沼液 污泥吸附 生物降解 |
| 英文关键词 antibiotics membrane bioreactor piggery wastewater sludge adsorption biodegradation |
| 作者 | 单位 | E-mail | | 丁佳丽 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006
上海师范大学生命与环境科学学院, 上海 200234 | wdoxssy@sina.com | | 刘锐 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 | liuruitsinghuazj@gmail.com | | 郑炜 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 | | | 宋小燕 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006 | | | 余卫娟 | 嘉兴市环境保护监测站, 嘉兴 314000 | | | 叶朝霞 | 嘉兴市环境保护监测站, 嘉兴 314000 | | | 陈吕军 | 浙江清华长三角研究院生态环境研究所, 浙江省水质科学与技术重点实验室, 嘉兴 314006
清华大学环境学院, 北京 100084 | chenlj@mail.tsinghua.edu.cn | | 张永明 | 上海师范大学生命与环境科学学院, 上海 200234 | |
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| 中文摘要 |
| 研究了间歇式膜生物反应器在不同进水碳氮比和有机负荷下对养猪沼液中11种兽用抗生素的去除特性,以及污泥中抗生素的含量变化. 结果表明,水力停留时间(HRT)≥5 d、 化学需氧量(COD)/总氮(TN)=2.1时,该膜生物反应器对抗生素和COD的去除率均较高,分别达到(79.1±0.7)%和(88.4±1.4)%; 当HRT缩短至3 d时,虽然COD去除率不受影响,但抗生素的去除率明显下降; COD/TN从2.1降至0.7后,抗生素去除效率不受影响,但COD去除率明显降低. 长污泥龄(SRT)下污泥中出现四环素类和喹诺酮类抗生素的持续积累,积累量随污泥龄的缩短而降低. 污泥中的抗生素含量与组成受进水影响较大. |
| 英文摘要 |
| The removal performance of 11 veterinary antibiotics in piggery wastewater and their accumulation in the activated sludge were studied in an intermittent aeration membrane bioreactor (IAMBR) at different COD/TN ratios and organic loads. The results showed that both antibiotics and chemical oxygen demand (COD) were efficiently removed at hydraulic retention time (HRT) of no less than five days and COD/TN ratio of 2.1, the removal rate was (79.1±0.7)% for total antibiotics and was (88.4±1.4)% for COD. As HRT was shortened to three days, the removal rate of COD was little changed but the removal rate of total antibiotics was significantly decreased. As COD/TN decreased from 2.1 to 0.7, the removal rate of total antibiotics was little changed, but the COD removal rate was significantly decreased. Antibiotics of tetracycline and quinolone species kept accumulating in the sludge at long SRT, and the accumulation amount was decreased with shorter SRT. The concentration and composition of antibiotic in the sludge were influenced by the raw wastewater. |
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