高级搜索

电絮凝-膜分离反应器还原-絮凝-超滤一体化处理六价铬废水

,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

李梦琦, 杨春风, 赵凯, 孙境求, 李静, 骆丽宁, 胡承志. 电絮凝-膜分离反应器还原-絮凝-超滤一体化处理六价铬废水[J]. 环境工程学报, 2018, 12(1): 79-85. doi: 10.12030/j.cjee.201705147
引用本文: 李梦琦, 杨春风, 赵凯, 孙境求, 李静, 骆丽宁, 胡承志. 电絮凝-膜分离反应器还原-絮凝-超滤一体化处理六价铬废水[J]. 环境工程学报, 2018, 12(1): 79-85. doi: 10.12030/j.cjee.201705147
shu
LI Mengqi, YANG Chunfeng, ZHAO Kai, SUN Jingqiu, LI Jing, LUO Lining, HU Chengzhi. Removal of Cr(Ⅵ) from wastewater by electrocoagulation membrane reactor based on reduction,flocculation and ultrafiltration[J]. Chinese Journal of Environmental Engineering, 2018, 12(1): 79-85. doi: 10.12030/j.cjee.201705147
Citation: LI Mengqi, YANG Chunfeng, ZHAO Kai, SUN Jingqiu, LI Jing, LUO Lining, HU Chengzhi. Removal of Cr(Ⅵ) from wastewater by electrocoagulation membrane reactor based on reduction,flocculation and ultrafiltration[J]. Chinese Journal of Environmental Engineering, 2018, 12(1): 79-85. doi: 10.12030/j.cjee.201705147
shu

电絮凝-膜分离反应器还原-絮凝-超滤一体化处理六价铬废水

  • 1.

    河北工业大学土木与交通学院,天津 300401

  • 2.

    中国科学院生态环境研究中心,中国科学院饮用水科学与技术重点实验室,北京 100085

  • 3.

    中国科学院大学,北京 100049

  • 基金项目:

    国家自然科学基金资助项目(51678556)

Removal of Cr(Ⅵ) from wastewater by electrocoagulation membrane reactor based on reduction,flocculation and ultrafiltration

  • 1.

    School of Civil and Transportation, Hebei University of Technology, Tianjin 300401,China

  • 2.

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

  • 3.

    University of Chinese Academy of Sciences, Beijing 100049, China

  • Fund Project:

  • 摘要: 采用电絮凝-膜分离反应器(electrocoagulation membrane reactor,ECMR)对含铬废水进行研究。讨论了电化学参数和水质条件对Cr(Ⅵ)去除的影响,对比了ECMR和EC-UF抑制膜污染的作用机制。结果表明,在电流密度J=55 A·m-2、初始浓度C(Cr6+)=40 mg·L-1、初始pH=3、电解时间60 min、水力停留时间20 min条件下,ECMR出水总Cr去除率达到99.2%,废水中Cr(Ⅵ)的去除率达到99.4%。同时发现ECMR膜通量优于EC-UF,通量高出近15%,ECMR装置不但能够充分利用电絮凝中的电场和气浮作用,进一步强化减缓膜污染,而且可以使装置系统更加紧凑,节省占地空间。
    Abstract: Recently, chromium (Cr) removal via coagulation has attracted great attention. Cr(Ⅵ) removal by electrocoagulation membrane reactor (ECMR) was investigated. The performance of Cr(Ⅵ) removal under various electrochemical parameters and solution conditions were evaluated. Besides, the mechanism of antifouling by ECMR and EC-UF were compared. The results show that, when the current density is J=55 A·m-2, electrolysis time of 60 min and hydraulic retention time of 20 min, the Cr(Ⅵ) and total chromium removal reached 99.4% and 99.2% in the solution of initial pH=3, C(Cr6+)=40 mg·L-1 respectively. The flux of ECMR shows an enhancement by 15% than that of EC-UF, indicating there exists a powerful antifouling effect under electric conditions.The ECMR device can not only make full use of the electric field and air floaing in the electrocogulation, but also further effectively slow down the membrane fouling.Moreover, the device can make the system more compact and save space.
  • 加载中
  • [1] 蔡蕊,宋黎明,庞长泷,等.利用农业废弃物处理水体重金属污染的研究进展[J].中国给水排水,2014,0(24):61-65
    [2] HEIDMANN I, CALMANO W.Removal of Cr(Ⅵ) from model wastewaters by electrocoagulation with Fe electrodes[J].Separation and Purification Technology,2008,1(1):15-21
    [3] PHALAKORNKULE C, POLGUMHANG S,TONGDAUNG W, et al.Electrocoagulation of blue reactive, red disperse and mixed dyes, and application in treating textile effluent[J].Journal of Environmental Management, 2010,1(4):918-926
    [4] LAI K C K,LO I M C.Removal of chromium (VI) by acid-washed zero-valent iron under various groundwater geochemistry conditions[J].Environmental Science & Technology,2008,2(4):1238-1244
    [5] BANSAL M,SINGH D,GARG V K.A comparative study for the removal of hexavalent chromium from aqueous solution by agriculture wastes’ carbons[J].Journal of Hazardous Materials,2009,1(1/2/3):83-92
    [6] 求渊,施勇琪,张相阳,等.脉冲电絮凝处理电镀含铬废水的实验研究[J].环境工程学报,2009,3(6):1029-1032
    [7] DEHGHANI M H,TAHER M M,BAJPAI A K, et al.Removal of noxious Cr(VI) ions using single-walled carbon nanotubes and multi-walled carbon nanotubes[J].Chemical Engineering Journal,2015,9:344-352
    [8] ACHARYA J,SAHU J N, SAHOO B K,et al.Removal of chromium(VI) from wastewater by activated carbon developed from tamarind wood activated with zinc chloride[J].Chemical Engineering Journal,2009,0(1):25-39
    [9] BOSINCO S,ROUSS Y J,GUIBAL E, et al.Interaction mechanisms between hexavalent chromium and corncob[J].Environmental Technology, 1996,7(1):55-62
    [10] MARININ D V,BROWNG N.Studies of sorbent/ion-exchange materials for the removal of radioactive strontium from liquid radioactive waste and high hardness ground waters[J].Waste Management,2000,0(7):545-553
    [11] RENGARAJ S, YEON K H,MOON S H.Removal of chromium from water and wastewater by ion exchange resins[J].Journal of Hazardous Materials,2001,7(1/2/3):273-287
    [12] 汤丽鸳,刘宁,符若文.功能纤维处理含铬废水的初步研究[J].环境技术,2001,9(4):42-47
    [13] KOZLOWSKI C A,WALKOWIAK W.Removal of chromium(VI) from aqueous solutions by polymer inclusion membranes[J].Water Research,2002,6(19):4870-4876
    [14] 张卫东,马竞男,任钟旗,等.大块液膜技术处理含六价铬废水[J].电镀与涂饰,2007,6(12):31-33
    [15] ZEWAIL T M,YOUSEF N S.Chromium ions (Cr6+ & Cr3+) removal from synthetic wastewater by eletrocoagulation using vertical expanded Fe anode[J].Journal of Electroanalytical Chemistry,2014,5:123-128
    [16] BHATTI M S,REDDY A S,THUKRAL A K,et al.Modeling and optimization of voltage and treatment time for electrocoagulation removal of hexavalent chromium[J].Desalination,2011,9(1/2/3):157-162
    [17] HARIF T, KHAI M, ADIN A.Electrocoagulation versus chemical coagulation:Coagulation/flocculation mechanisms and resulting floc characteristics[J].Water Research,2012,6(10):3177-3188
    [18] ZUO W R,ZHANG G L,MENG Q,et al.Characteristics and application of multiple membrane process in plating wastewater reutilization[J].Desalination,2008,2(1/2/3):187-196
    [19] BANIMELHEM K,ELEKTOROWICZ M.Development of a novel submerged membrane electro-bioreactor (SMEBR):Performance for fouling reduction[J].Environmental Science & Technology,2010,4(9):3298-3304
    [20] MENEZES V M D, MOTA R, ZANELLA I,et al.Pristine and functionalized capped carbon nanotubes under electric fields[J].Physica Status Solidi B,2014,1(3):649-654
    [21] LI H P,HU T X,ZHANG R J,et al.Preparation of solid-state z-scheme Bi2MoO6/MO(M=Cu,Co3/4,or Ni) heterojunctions with internal electric field-improved performance in photocatalysis[J].Applied Catalysis B:Environmental,2016,8:313-323
    [22] 高延耀,顾国维.水污染控制工程:下[M].北京:高等教育出版社, 2006
    [23] ESCOBAR C, SOTO-SALAZAR C, TORAL M I.Optimization of the electrocoagulation process for the removal of copper, lead and cadmium in natural waters and simulated wastewater[J].Journal of Environmental Management,2006,1(4):384-391
    [24] BEYAZIT N.Copper(II), chromium(VI) and nickel(II) removal from metal plating effluent by electrocoagulation[J].International Journal of Electrochemical Science,2014,9(8):4315-4330
    [25] ARROYO M G, PREZ H V, MONTANS M T,et al.Effect of pH and chloride concentration on the removal of hexavalent chromium in a batch electrocoagulation reactor[J].Journal of Hazardous Materials,2009,9(1/2/3):1127-1133
    [26] LU J,WANG Z R,LIU Y L,et al.Removal of Cr from aqueous solution using batch electrocoagulation:Cr removal mechanism and utilization rate of in situ generated metal ions[J].Process Safety and Environmental Protection,2016,4:436-443
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2952
  • HTML全文浏览数:  2633
  • PDF下载数:  320
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-01-14

电絮凝-膜分离反应器还原-絮凝-超滤一体化处理六价铬废水

  • 1. 河北工业大学土木与交通学院,天津 300401
  • 2. 中国科学院生态环境研究中心,中国科学院饮用水科学与技术重点实验室,北京 100085
  • 3. 中国科学院大学,北京 100049
基金项目:

国家自然科学基金资助项目(51678556)

摘要: 采用电絮凝-膜分离反应器(electrocoagulation membrane reactor,ECMR)对含铬废水进行研究。讨论了电化学参数和水质条件对Cr(Ⅵ)去除的影响,对比了ECMR和EC-UF抑制膜污染的作用机制。结果表明,在电流密度J=55 A·m-2、初始浓度C(Cr6+)=40 mg·L-1、初始pH=3、电解时间60 min、水力停留时间20 min条件下,ECMR出水总Cr去除率达到99.2%,废水中Cr(Ⅵ)的去除率达到99.4%。同时发现ECMR膜通量优于EC-UF,通量高出近15%,ECMR装置不但能够充分利用电絮凝中的电场和气浮作用,进一步强化减缓膜污染,而且可以使装置系统更加紧凑,节省占地空间。

English Abstract

参考文献 (26)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心