高级搜索

电絮凝-超滤除氟工艺参数优化研究

,  ,  ,  , 

downloadPDF

上一篇

下一篇

王树青, 胡承志, 杨春风, 李静, 刘会娟. 电絮凝-超滤除氟工艺参数优化研究[J]. 环境工程学报, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
引用本文: 王树青, 胡承志, 杨春风, 李静, 刘会娟. 电絮凝-超滤除氟工艺参数优化研究[J]. 环境工程学报, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
shu
Wang Shuqing, Hu Chengzhi, Yang Chunfeng, Li Jing, Liu Huijuan. Study of parameters optimization in defluoridation by electrocoagulation-ultrafiltration process[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
Citation: Wang Shuqing, Hu Chengzhi, Yang Chunfeng, Li Jing, Liu Huijuan. Study of parameters optimization in defluoridation by electrocoagulation-ultrafiltration process[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
shu

电絮凝-超滤除氟工艺参数优化研究

  • 1.

    河北工业大学土木工程学院, 天津 300401

  • 2.

    中国科学院生态环境研究中心环境水质学国家重点实验室, 北京 100085

  • 基金项目:

    环境水质学国家重点实验室专项经费资助项目(13Z02-ESPCT)

    国家"水体污染控制与治理"科技重大专项(2012ZX07414-001)

  • 中图分类号: X703

Study of parameters optimization in defluoridation by electrocoagulation-ultrafiltration process

  • 1.

    School of Civil Engineering, Hebei University of Technology, Tianjin 300401, China

  • 2.

    Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

  • Fund Project:

  • 摘要: 电絮凝-超滤(electrocoagulation-ultrafiltration,EC-UF)工艺在饮用水除氟方面具有良好的应用前景。研究了EC-UF除氟效果和膜污染过程,考察了电流密度、水力停留时间、初始pH、初始氟浓度对除氟效果和膜污染的影响。结果表明,在连续流下EC-UF工艺除氟效果良好,在电流密度30 A/m2、水力停留时间20 min、初始pH在6.0~7.0的最佳工艺条件下,氟的去除率达到80%以上。膜污染主要是由电解过程产生的铝絮凝剂与氟离子形成的颗粒物质导致。上述结果为EC-UF除氟工艺改进提供了参考和依据。
    Abstract: The electrocoagulation-ultrafiltration process (EC-UF) has been recognized as a promising method for the fluoride removal from drinking water.The removal efficiency of fluoride by EC-UF and corresponding membrane fouling was investigated.Simultaneously,effects of current density,hydraulic retention time,initial pH values and initial fluoride concentration were investigated.The results indicated that in the continuous running,the fluoride can be largely removed by the EC-UF process.The removal rate of fluoride was up to 80% with optimizing the current density of 30 A/m2,hydraulic retention time of 20 min and initial pH of 6.0—7.0.It was observed that the membrane fouling was mainly caused by the particulates of the aluminum coagulants in electrolytic process and fluoride ions.The above results provide a reference and basis for EC-UF defluoridation process improvement.
  • 加载中
  • [1] 巩文信.铝氟形态相互作用与混凝/吸附除氟机制研究.北京:中国科学院研究生院博士学位论文,2012 Gong Wenxin.Species interactions between aluminium and fluoride and the mechanism of fluoride removal by coagulation and adsorption.Beijing:Doctor Dissertation of Graduate University of Chinese Academy of Sciences,2012(in Chinese)
    [2] 曲久辉,刘会娟.水处理电化学原理与技术.北京:科学出版社,2007
    [3] Harif T.,Khai M.,Adin A.Electrocoagulation versus chemical coagulation:Coagulation/flocculation mechanisms and resulting floc characteristics.Water Research,2012,46(10):3177-3188
    [4] 董秉直,曹达文,陈艳.饮用水膜深度处理技术.北京:化学工业出版社,2006
    [5] 黄维菊,魏星.膜分离技术概论.北京:国防工业出版社,2008
    [6] Gamagea N.P.,Chellam S.Aluminum electrocoagulation pretreatment reduces fouling during surface water microfiltration.Journal of Membrane Science,2011,379(1-2):97-105
    [7] Tanneru C.,Rimer J.,Chellam S.Sweep flocculation and adsorption of viruses on aluminum flocs during electrochemical treatment prior to surface water microfiltration.Environmental Science & Technology,2013,47(9):4612-4618
    [8] 李静波,赵璇,李福志.电絮凝-微滤去除饮用水中的氟.清华大学学报(自然科学版),2007,47(9):1495-1497 Li Jingbo,Zhao Xuan,Li Fuzhi.Defluoridation of drinking water using electrocoagulation-microfiltration.Journal of Tsinghua University (Science and Technology),2007,47(9):1495-1497(in Chinese)
    [9] Hu Kang,Dickson J.M.Nanofiltration membrane performance on fluoride removal from water.Journal of Membrane Science,2006,279(1-2):529-538
    [10] 国家环境保护总局.水和废水监测分析方法(第4版).北京:中国环境科学出版社,2002
    [11] Zhao Bingqing, Wang Dongsheng, Li Tao, et al. Influence of floc structure on coagulation-microfiltration performance: Effect of Al speciation characteristics of PACls. Separation and Purification Technology, 2010, 72(1):22-27
    [12] Hu C.Y.,Lo S.L.,Kuan W.H.Effects of co-existing anions on fluoride removal in electrocoagulation (EC) process using aluminum electrodes.Water Research,2003,37(18):4513-4523
    [13] Harif T.,Adin A.Size and structure evolution of kaolin-Al(OH)3 flocs in the electroflocculation process:A study using static light scattering.Water Research,2011,45(18):6195-6206
    [14] Cañizares P.,Martínez F.,Jiménez C.,et al.Comparison of the aluminum speciation in chemical and electrochemical dosing processes.Industrial & Engineering Chemistry Research,2006,45(26):8749-8756
    [15] Wang Dongsheng,Sun Wei,Xu Yongxiao,et al.Speciation stability of inorganic polymer flocculant-PACl.Colloids and Surfaces A:Physicochemical and Engineering Aspects,2004,243(1-3):1-10
    [16] Zhao He,Liu Huijuan,Qu Jiuhui.Effect of pH on the aluminum salts hydrolysis during coagulation process:Formation and decomposition of polymeric aluminum species.Journal of Colloid and Interface Science,2009,330(1):105-112
    [17] Zhao Huazhang,Yang Wei,Zhu Jun,et al.Defluoridation of drinking water by combined electrocoagulation.Effects of the molar ratio of alkalinity and fluoride to Al(III).Chemosphere,2009,74(10):1391-1395
    [18] Hu C.Y.,Lo S.L.,Kuan W.H.Effects of the molar ratio of hydroxide and fluoride to Al(III) on fluoride removal by coagulation and electrocoagulation.Journal of Colloid and Interface Science,2005,283(2):472-476
    [19] Xiao Ping, Xiao Feng, Zhang Weiju, et al. Insight into the combined colloidal-humic acid fouling on the hybrid coagulation microfiltration membrane process: The importance of aluminum. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014,461:98-104
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2023
  • HTML全文浏览数:  1459
  • PDF下载数:  759
  • 施引文献:  0
出版历程
  • 收稿日期:  2014-06-02
  • 刊出日期:  2015-07-02
王树青, 胡承志, 杨春风, 李静, 刘会娟. 电絮凝-超滤除氟工艺参数优化研究[J]. 环境工程学报, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
引用本文: 王树青, 胡承志, 杨春风, 李静, 刘会娟. 电絮凝-超滤除氟工艺参数优化研究[J]. 环境工程学报, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
shu
Wang Shuqing, Hu Chengzhi, Yang Chunfeng, Li Jing, Liu Huijuan. Study of parameters optimization in defluoridation by electrocoagulation-ultrafiltration process[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
Citation: Wang Shuqing, Hu Chengzhi, Yang Chunfeng, Li Jing, Liu Huijuan. Study of parameters optimization in defluoridation by electrocoagulation-ultrafiltration process[J]. Chinese Journal of Environmental Engineering, 2015, 9(7): 3093-3098. doi: 10.12030/j.cjee.20150704
shu

电絮凝-超滤除氟工艺参数优化研究

  • 1.  河北工业大学土木工程学院, 天津 300401
  • 2.  中国科学院生态环境研究中心环境水质学国家重点实验室, 北京 100085
  • 收稿日期:  2014-06-02
基金项目:

环境水质学国家重点实验室专项经费资助项目(13Z02-ESPCT)

国家"水体污染控制与治理"科技重大专项(2012ZX07414-001)

摘要: 电絮凝-超滤(electrocoagulation-ultrafiltration,EC-UF)工艺在饮用水除氟方面具有良好的应用前景。研究了EC-UF除氟效果和膜污染过程,考察了电流密度、水力停留时间、初始pH、初始氟浓度对除氟效果和膜污染的影响。结果表明,在连续流下EC-UF工艺除氟效果良好,在电流密度30 A/m2、水力停留时间20 min、初始pH在6.0~7.0的最佳工艺条件下,氟的去除率达到80%以上。膜污染主要是由电解过程产生的铝絮凝剂与氟离子形成的颗粒物质导致。上述结果为EC-UF除氟工艺改进提供了参考和依据。

English Abstract

    全文HTML

参考文献 (19)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心