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3种污泥对磺胺二甲基嘧啶的吸附性能
  • ISSN号:1673-9108
  • 期刊名称:《环境工程学报》
  • 时间:0
  • 分类:X791[环境科学与工程—环境工程]
  • 作者机构:[1]东华大学环境科学与工程学院,上海201620
  • 相关基金:高等学校博士点专项科研基金资助项目(20090075120007); 上海科委项目(09230500200); 中央高校基本科研业务费专项资金资助项目(10D11308)
中文摘要:

研究了厌氧颗粒污泥、厌氧污泥及好氧污泥对磺胺二甲基嘧啶(SM2)的吸附性能。当SM2初始浓度为50μg/L时,采用活性污泥灭活吸附,考察了吸附平衡时间、吸附等温线及温度对污泥吸附的影响,并比较了失活污泥与活性污泥的吸附性能。结果表明,3种污泥对SM2的吸附均在1 h内达到吸附平衡;3种失活污泥对SM2的吸附都可用Freundl-ich和Langmuir吸附模型来描述,并且Freundlich吸附模型的拟合效果要好于Langmuir模型(R2F〉R2L);温度对3种污泥吸附影响规律一致,并且吸附常数KF(15℃)〉KF(25℃)〉KF(35℃),这说明吸附为放热反应,低温有利于吸附反应的进行。活性污泥对SM2的吸附与失活污泥吸附规律一致,都符合Freundlich模型。3种活性污泥对SM2的去除是吸附和降解的共同作用,并且都是降解占主导地位,降解效率为厌氧污泥〉好氧污泥〉厌氧颗粒污泥。

英文摘要:

The adsorption characteristics of sulfamethazine by three kinds of sludge including anaerobic granular sludge,anaerobic sludge and aerobic sludge were investigated.The effects of adsorption equilibrium time and temperature on the adsorption of SM2 by inactivated sludge were studied when the SM2 concentration was 50 μg/L.The research also compared the adsorption characteristics of inactivated and activated sludge.The results showed that the adsorption of SM2 by three kinds of sludge was a rapid process and the adsorption equilibrium was established in 1 h.The adsorption by three kinds of sludge fitted both Freundlich and Langumir model,but Freundlich model fitted better than Langumir model(R2FR2L).The temperature had same effect on the adsorption by three kinds of sludge and the the capacity parameter KF(15℃)KF(25℃)KF(35℃).This showed that the adsorption was exothermic,low temperatures favored adsorption reaction.According to the fitting results,three kinds of inactivated sludge had little adsorption difference from activated sludge,which also fitted Freundlich model.The removal of SM2 by three kinds of activated sludge was the combined effect of adsorption and degradation,and degradation played the leading role.The degradation efficiency of SM2 is anaerobic sludge aerobic sludge anaerobic granular sludge.

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期刊信息
  • 《环境工程学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院生态环境研究中心
  • 主编:曲久辉
  • 地址:北京东黄城根北街16号
  • 邮编:100017
  • 邮箱:
  • 电话:010-62941074
  • 国际标准刊号:ISSN:1673-9108
  • 国内统一刊号:ISSN:11-5591/X
  • 邮发代号:82-448
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘
  • 被引量:20083