| 天氧污泥对问二氯苯的吸附性能 |
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| 引用本文： | 刘冬雪,金建祥,丁成,杨百忍,孙煜宸,曹叶婷.天氧污泥对问二氯苯的吸附性能[J].环境污染治理技术与设备,2014(2):541-547. |
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| 作者姓名： | 刘冬雪 金建祥 丁成 杨百忍 孙煜宸 曹叶婷 |
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| 作者单位： | [1]江苏大学环境与安全工程学院,镇江212013 [2]盐城工学院环境科学与工程学院,盐城224051 [3]江苏科易达环保科技有限公司,盐城224051 |
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| 基金项目： | 江苏省科技型企业技术创新资金项目（BC2012184）;江苏省教育厅高校科研成果产业化推进工程项目（JHB2012-51） |
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| 摘 要： | 为了研究灭活厌氧污泥和活性厌氧污泥对问二氯苯（m-DCB）的吸附，考察了吸附平衡时间、吸附动力学、吸附等温线、吸附热力学、污泥投加量和pH对吸附m-DCB的影响。结果表明，2种污泥对m-DCB的吸附在1h内达到平衡。应用伪一级、伪二级反应动力学对实验数据进行验证，表明厌氧污泥吸附m-DCB更符合伪二级反应动力学模型。2种污泥对m-DCB的吸附都可以用Langmuir和Freundlich吸附模型拟合，但Langrnuir吸附模型的拟合结果要好于Freundlich模型，且活性厌氧污泥的吸附性能显著高于灭活厌氧污泥。从吸附热力学上看，该吸附为放热反应，低温有利于吸附反应的进行。pH值对2种污泥吸附m-DCB的影响很小。
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| 关 键 词： | m-DCB灭活厌氧污泥 活性厌氧污泥 吸附 |
Adsorptive properties of anaerobic sludge to 1,3-dichlorobenzene |
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| Liu Dongxue,Jin Jianxiang,Ding Cheng,Yang Bairen,Sun Yuchen,Cao Yeting.Adsorptive properties of anaerobic sludge to 1,3-dichlorobenzene[J].Techniques and Equipment for Environmental Pollution Control,2014(2):541-547. |
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| Authors: | Liu Dongxue Jin Jianxiang Ding Cheng Yang Bairen Sun Yuchen Cao Yeting |
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| Institution: | 1. School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212023, China; 2. School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, Chlna; 3. Jiangsu Keyida Environmental Technology Co. Ltd. , Yancheng 224051, China) |
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| Abstract: | In order to investigate the adsorption of I ,3-dichlorobenzene by anaerobic inactivated sludge and anaerobic activated sludge, the effects of equilibrium time, pH, sludge dosage, adsorption kinetics, adsorption thermodynamics and adsorption isotherms were studied. Results showed that the adsorption of m-DCB by two kinds of sludge could keep balance within 1 h. Kinetic studies showed that the adsorption process followed pseudo second-order. The equilibrium data were simulated using Langmuir and Freundlich model, and it was found that Langmuir model fitted well. Furthermore, anaerobic activated sludge had higher equilibrium adsorption capacity than that of anaerobic inactivated sludge. Thermodynamic studies showed that the adsorption was exothermic, low temperatures favored adsorption reaction. The pH value was unimportant parameter affecting the adsorption of m-DCB. |
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| Keywords: | m-DCB anaerobic inactivated sludge anaerobic activated sludge adsorption |
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