| 好氧颗粒污泥吸附Cu2+的研究 |
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| 引用本文： | 孙鑫,李金城,郑华燕,许丹丹,徐芝芬,阙光龙.好氧颗粒污泥吸附Cu2+的研究[J].环境科学与技术,2011,34(9):22-25. |
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| 作者姓名： | 孙鑫 李金城 郑华燕 许丹丹 徐芝芬 阙光龙 |
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| 作者单位： | 1. 桂林理工大学环境科学与工程学院,广西桂林,541004
2. 桂林理工大学环境科学与工程学院,广西桂林541004;广西环境工程与保护评价重点实验室,广西桂林541004 |
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| 基金项目： | 广西科技厅项目(桂科攻10124002-3); 广西环境工程与保护评价重点实验室主任基金项目(桂科能0701z010); 广西高校人才小高地建设“环境工程”创新团队计划项目资助(桂教人[2007]71); 广西教育厅科研项目(桂教科研200911LX125) |
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| 摘 要： | 以厌氧颗粒污泥作为接种物,在序批式间歇反应器(SBR)中培养出沉淀性能较好的好氧颗粒污泥,研究了好氧颗粒污泥对Cu2+的吸附作用.结果表明,好氧颗粒污泥主要由球状菌组成,具有明显的孔隙结构.在恒温水浴30℃、pH为7.5的条件下,Langmuir吸附等温模型较Freundlich等温吸附模型能更好的进行拟合(RL=0....
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| 关 键 词： | 好氧颗粒污泥 Cu2+ 等温吸附 吸附动力学 |
Cu~(2+) Biosorption with Aerobic Granules |
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| SUN Xin,LI Jin-cheng,ZHENG Hua-yan,XU Dan-dan,XU Zhi-fen,QUE Guang-long.Cu~(2+) Biosorption with Aerobic Granules[J].Environmental Science and Technology,2011,34(9):22-25. |
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| Authors: | SUN Xin LI Jin-cheng ZHENG Hua-yan XU Dan-dan XU Zhi-fen QUE Guang-long |
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| Institution: | SUN Xin1,LI Jin-cheng1,2,ZHENG Hua-yan1,XU Dan-dan1,XU Zhi-fen1,QUE Guang-long1(1.School of Environmental Science and Engineering,Guilin University of Technology,Guilin 541004,China,2.Key Laboratory of Environmental Engineering and Protection Assessment of Guangxi,China) |
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| Abstract: | Aerobic granule sludge with good settling velocity was cultivated in sequencing batch reactor with aerobic granules seeding.The adsorption efficiency of aerobic granules,as a biosorbent,on Cu2+ was studied.Results showed that many coccoid bacteria were visible on the granule surface with porous structure.Langmuir isotherm equation could better describe the adsorption data than Freundlich under the conditions of temperature 30 ℃ and pH 7.5,with the maximum adsorption capability as 58.13 mg/g.The pseudo second-order kinetic model was useful to describe the adsorption process of Cu2+.Fourier transform infrared spectroscopy(FTIR)results demonstrated that such active groups as-OH,-COOH and C-N were involved in Cu2+ biosorption.The aerobic granules might be utilized as an effective and economical biosorbent for wastewater treatment. |
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| Keywords: | aerobic granules Cu2 isothermal adsorption adsorption dynamics |
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