| 活性污泥法降解三溴苯酚 |
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| 引用本文： | 顾雍,孙贤波,刘勇弟,邬莎娜,陈强,陈颖. 活性污泥法降解三溴苯酚[J]. 医学教育探索, 2016, 0(5): 664-669 |
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| 作者姓名： | 顾雍 孙贤波 刘勇弟 邬莎娜 陈强 陈颖 |
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| 作者单位： | 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237,华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237,华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237,华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237,华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237,华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海 200237 |
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| 摘 要： | 为探究三溴苯酚（TBP）在活性污泥系统中的降解过程，采用驯化活性污泥的方法，考察了初始浓度、pH、温度、外加碳源、重金属及络合剂对活性污泥降解三溴苯酚的影响。研究表明，当三溴苯酚质量浓度为10~50 mg/L时，降解过程符合零级动力学。活性污泥对三溴苯酚的比基质吸附速率qbd随pH增大而减小，且当pH为7.0~8.0时，有利于生物降解。苯酚和双酚A作为外加碳源时对三溴苯酚的降解产生抑制作用。Cu2+和Ni2+的存在也抑制了三溴苯酚的降解，且Ni2+的抑制效应要强于Cu2+。柠檬酸作为络合剂通过降低水相中游离金属离子的浓度可以减弱重金属对活性污泥的抑制作用，当Cu2+与柠檬酸物质的量之比为1：4时，Cu2+的抑制效应完全可以清除。
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| 关 键 词： | 三溴苯酚 外加碳源 重金属 络合剂 |
| 收稿时间： | 2016-03-08 |
Biodegradation of Tribromophenol in Activated Sludge System |
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| GU Yong,SUN Xian-bo,LIU Yong-di,WU Sha-n,CHEN Qiang and CHEN Ying. Biodegradation of Tribromophenol in Activated Sludge System[J]. Researches in Medical Education, 2016, 0(5): 664-669 |
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| Authors: | GU Yong SUN Xian-bo LIU Yong-di WU Sha-n CHEN Qiang CHEN Ying |
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| Affiliation: | School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China,School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China,School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China,School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China,School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China and School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | The acclimated sludge was used to investigate the influence of initial TBP concentration,pH,temperature,additional carbon sources,heavy metal and chelant on the degradation of tribromophenol (TBP) in activated sludge system.The experimental results showed that degradation of TBP followed the zero-order reaction in the concentration range of 10-50 mg/L.The specific biosorption rate qbd decreased with the increase of pH and pH 7.0-8.0 was in favor of biodegradation.Phenol and BPA as additional carbon sources inhibited the biodegradation of TBP.Both Cu2+ and Ni2+ also inhibited the biodegradation of TBP,while the inhibitory effect of Ni2+on biodegradation of TBP was stronger than that of Cu2+.Citric acid as chelant reduced the inhibitory effect of Cu2+ by reducing free Cu2+ in water phase.When n (Cu2+):n (Citric acid) was 1:4,the inhibition of Cu2+ was completely eliminated. |
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| Keywords: | tribromopheol additional carbon source heavy metal chelant |
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