不同分子质量的腐殖酸对溴离子在MIEX树脂上吸附行为的影响
|
摘要
采用静态吸附法研究了不同分子量的腐殖酸对溴离子(Br-)在MIEX树脂上吸附行为的影响.结果表明,pH为中性时,4种腐殖酸(分子量分别为小于1 000,1 000～5 000,5 000～10 000,大于10 000)使MIEX树脂对Br-的去除率从80.05%分别降至75.39%, 26.32%, 42.67%和49.03%,而酸性(pH<5.0)或碱性(pH>9.0)时,各种腐殖酸则会促进Br-去除,pH为11.0时去除效率增加最明显.分子量大于10000的腐殖酸可将吸附平衡时间由60 min缩短至20 min,分子质量1000～5000和5000～10000的腐殖酸可将吸附平衡时间缩短至40min.但不论有无腐殖酸,MIEX树脂对Br-的吸附过程均符合拟二级反应动力学模型.不同分子量的腐殖酸均能明显降低Br-在MIEX树脂上的吸附平衡容量,分子量大于10000的腐殖酸影响最大,但均不改变吸附平衡模型类型,吸附平衡规律用Langmuir与Freundlich模型均可很好描述.不同分子量的腐殖酸对MIEX树脂去除Br-的影响与溶液pH值密切相关,腐殖酸会加速Br-在树脂上的吸附过程,但不改变吸附平衡及动力学模型类型.
The effects of humic acid(HA) with different molecular weights on the adsorption behavior of bromide on magnetic ion exchange(MIEX) resin were investigated by static adsorption test. The results showed that four fractions of humic acid with different molecular weights(<1000, 1 000~5000, 5 000~10000, >10000) decreased the removal efficiency of bromide by magnetic ion exchange resin from 80.05% to 75.39%, 26.32%, 42.67% and 49.03% at pH 7.0, respectively. However, each fraction of humic acid with different molecular weights mentioned above improved the removal rate of bromide by magnetic ion exchange resin at acidic(pH<5.0) or alkaline(pH>9.0) condition and the increase of removal efficiency was the most obvious when the pH was 11.0. The humic acid with molecular weight >10 000 shortened the time needed to attain the equilibrium of bromide adsorbed on magnetic ion exchange resin from 60 min to 20 min, and those with molecular weights 1000~5 000, and 5 000~10 000 reduced the adsorption equilibrium time of bromide to 40 min. The process of bromide adsorbed on magnetic ion exchange resin followed the pseudo-second-order kinetic equation, regardless of whether humic acid existed or not. The adsorption equilibrium capacity of bromide on magnetic ion exchange resin was significantly reduced by various molecular weight humic acid components, which shortened sharply of the humic acid with molecular weight >10000. But the adsorption equilibrium model type of bromine on magnetic ion exchange resin was not changed. Both Langmuir isotherm model and Freundlich isotherm models described the equilibrium of bromide adsorbed on magnetic ion exchange resin well. The effects of humic acids with different molecular weights on the removal of bromide by magnetic ion exchange resin is closely related to pH of solution, and various humic acid components accelerated the adsorption process of bromide on magnetic ion exchange resin, but not change the type of adsorption equilibrium and kinetic models.
The effects of humic acid(HA) with different molecular weights on the adsorption behavior of bromide on magnetic ion exchange(MIEX) resin were investigated by static adsorption test. The results showed that four fractions of humic acid with different molecular weights(<1000, 1 000~5000, 5 000~10000, >10000) decreased the removal efficiency of bromide by magnetic ion exchange resin from 80.05% to 75.39%, 26.32%, 42.67% and 49.03% at pH 7.0, respectively. However, each fraction of humic acid with different molecular weights mentioned above improved the removal rate of bromide by magnetic ion exchange resin at acidic(pH<5.0) or alkaline(pH>9.0) condition and the increase of removal efficiency was the most obvious when the pH was 11.0. The humic acid with molecular weight >10 000 shortened the time needed to attain the equilibrium of bromide adsorbed on magnetic ion exchange resin from 60 min to 20 min, and those with molecular weights 1000~5 000, and 5 000~10 000 reduced the adsorption equilibrium time of bromide to 40 min. The process of bromide adsorbed on magnetic ion exchange resin followed the pseudo-second-order kinetic equation, regardless of whether humic acid existed or not. The adsorption equilibrium capacity of bromide on magnetic ion exchange resin was significantly reduced by various molecular weight humic acid components, which shortened sharply of the humic acid with molecular weight >10000. But the adsorption equilibrium model type of bromine on magnetic ion exchange resin was not changed. Both Langmuir isotherm model and Freundlich isotherm models described the equilibrium of bromide adsorbed on magnetic ion exchange resin well. The effects of humic acids with different molecular weights on the removal of bromide by magnetic ion exchange resin is closely related to pH of solution, and various humic acid components accelerated the adsorption process of bromide on magnetic ion exchange resin, but not change the type of adsorption equilibrium and kinetic models.
引文
[1]Tammaro M,Fiandra V,Salluzzo A,et al.UV treatment for the removal of bromate formed during ozonation of groundwater.influence of the oxidation process on the removal efficiency[J].J.Environ.Chem.Eng.,2016,4(3):3293-3302.
[2]Chen C,Apul O G,Karanfil T.Removal of bromide from surface waters using silver impregnated activated carbon[J].Water Res.,2017,113:223-230.
[3]梅红,丁国际,黄鑫,等.含溴黄浦江水消毒过程中溴代三卤甲烷和卤乙酸的生成特性[J].环境科学学报,2011,31(10):2162-2168.Mei H,Ding G J,Huang X,et al.Formation of Br-THMs and Br-HAAs in bromide-containing huangpu river water during disinfection[J].Acta Scientiae Circumstantiae,2011,31(10):2162-2168.
[4]朱云华,丁磊,钟梅英,等.载银沸石吸附去除水中溴离子的特性研究[J].硅酸盐通报,2015,34(7):1857-1863.Zhu Y H,Ding L,Zhong M Y,et al.Adsorption properties of bromide from aqueous solutions using silver-loaded zeolite[J].Bulletin of the Chinese Ceramic Society,2015,34(7):1857-1863.
[5]Watson K,FarréM J,Knight N.Comparing a silver-impregnated activated carbon with an unmodified activated carbon for disinfection by-product minimisation and precursor removal[J].Sci.Total Environ.,2016,542A:672-684.
[5]刘彤冕,崔福义,赵志伟,等.溴酸盐和溴离子在活性炭上的竞争吸附研究[J].给水排水,2010,36(3):118-122.Liu T M,Cui F Y,Zhao Z W,et al.Study on the competitive adsorption of bromate and bromide on activated carbon[J].Water and Wastewater Engineering,2010,36(3):118-122.
[7]严刚,钟宇,成双,等.镁铝型水滑石的合成及其对溴离子的吸附[J].青海大学学报,2011,29(5):9-12.Yan G,Zhong Y,Cheng S,et al.Preparation of Mg-Al hydrotalcite and its capability for bromide anion[J].Journal of Qinghai University,2011,29(5):9-12.
[8]张蕾,严刚.焙烧态镁铝水滑石吸附水中溴离子的研究[J].科技通报,2016,32(3):214-217.Zhang L,Yan G.Adsorption of bromide ion from aqueous solution by calcined Mg-Al hydrotalcites[J].Bulletin of Science and Technology,2016,32(3):214-217.
[9]侯杰.三种壳聚糖对海水溴离子的吸附性能研究[D].青岛:中国海洋大学,2009:9-10.Hou J.A study on the adsorption performance of seawater bromide ion using three chitosans[D].Qingdao:Ocean University of China,2009:9-10.
[10]孟范平,侯杰,姚瑞华.硝酸镧改性壳聚糖对Br-的吸附性能研究[J].现代化工,2008,28(增刊2):293-299.Meng F P,Hou J,Yao R H.Study on adsorption behaviors of bromide ion using lanthanum-modified chitosan[J].Modern Chemical Industry,2008,28(S2):293-299.
[11]Gong C,Zhang Z,Qian Q,et al.Removal of bromide from water by adsorption on silver-loaded porous carbon spheres to prevent bromate formation[J].Chemical Engineering Journal,2013,218(4):333-340.
[12]郭立俊,魏红彬.银纳米粒子的制备及溴离子对其表面性质的影响[J].河南大学学报(自然科学版),2000,30(3):20-23.Guo L J,Wei H B.The preparation of Ag nanoparticle and its surface properties influenced by Br-[J].Journal of Henan University(Natural Science),2000,30(3):20-23.
[13]Kitis M,Harman B?,Yigit N O,et al.The removal of natural organic matter from selected turkish source waters using magnetic ion exchange resin(MIEX?)[J].React.Funct.Polym.,2007,67(12):1495-1504.
[14]Nguyen T V,Zhang R,Vigneswaran S,et al.Removal of organic matter from effluents by magnetic ion exchange(MIEX?)[J].Desalination,2011,276(1/3):96-102.
[15]陈卫,韩志刚,刘成,等.磁性离子交换树脂对原水中有机物去除效能的研究[J].中国环境科学,2009,29(7):707-712.Chen W,Han Z G,Liu C,et al.Removal efficiency of organic matter in raw water with a magnetic ion exchange resin[J].China Environmental Science,2009,29(7):707-712.
[16]Fearing D A,Banks J,Guyetand S,et al.Combination of ferric and MIEX for the treatment of a humic rich water[J].Water Res.,2004,38(10):2551-2558.
[17]Boyer T H,Singer P C.Bench-scale testing of a magnetic ion exchange resin for removal of disinfection by-product precursors[J].Water Res.,2005,39(7):1265-1276.
[18]Ding L,Deng H,Wu C,et al.Affecting factors,equilibrium,kinetics and thermodynamics of bromide removal from aqueous solutions by MIEX resin[J].Chemical Engineering Journal,2012,S181/182(2):360-370.
[19]陈卫,曹喆,刘成,等.MIEX对水中溴离子的去除效能及其影响因素[J].土木建筑与环境工程,2012,34(3):133-137.Chen W,Cao Z,Liu C,et al.Removal efficiency and influence factors of bromide in water by MIEX[J].Journal of Civil,Architectural and Environmental Engineering,2012,34(3):133-137.
[20]Hsu S,Singer P C.Removal of bromide and natural organic matter by anion exchange[J].Water Res.,2010,44(7):2133-2140.
[21]Phetrak A,Lohwacharin J,Sakai H,et al.Simultaneous removal of dissolved organic matter and bromide from drinking water source by anion exchange resins for controlling disinfection by-products[J].J.Environ.Sci.,2014,26(6):1294-1300.
[22]靳晓鹏,丁磊,王丹丹,等.MIEX树脂去除水源中突发性六价铬污染的参数优化[J].过程工程学报,2017,17(4):716-724.Jin X P,Ding L,Wang D D,et al.Parameters optimizing of removal of hexavalent chromium from the emergently polluted raw water using MIEX resin[J].Chin.J.Process Eng.,2017,17(4):716-724.
[23]Hakim A,Kobayashi M.Aggregation and charge reversal of humic substances in the presence of hydrophobic monovalent counter-ions:effect of hydrophobicity of humic substances[J].Colloids Surf.,A,2018,540:1-10.
[24]杨毅,兰亚琼,金鹏康,等.腐殖酸与Cd2+的结合特性及其影响因素[J].环境化学,2017,36(6):1198-1203.Yang Y,Lan Y Q,Jin P K,et al.Characteristic and influential factors of humic acid complexed with Cd2+[J].Environment Chemistry,2017,36(6):1198-1203.
[25]高教成,徐兰云.浅述离子交换动力学模型及其机理[J].科技资讯,2015,13(22):21-22.Gao J C,Xu L Y.The dynamic model and its mechanism of the shallow ion exchange[J].Science and Technology Information,2015,13(22):21-22.
[26]Humbert H,Gallard H,Suty H,et al.Natural organic matter(NOM)and pesticides removal using a combination of ion exchange resin and powdered activated carbon(PAC)[J].Water Res.,2008,42(6/7):1635-1643.
[27]刘成,陈卫,李磊,等.MIEX预处理技术对长江原水中有机物的去除效能[J].环境科学,2009,30(6):1639-1643.Liu C,Chen W,Li L,et al.Removal effect of organics in Yangtze river raw water by MIEX resin pretreatment[J].Environment Science,2009,30(6):1639-1643.
[28]李学艳,高乃云,沈吉敏,等.水中天然有机物对粉末活性炭吸附2-MIB的影响[J].给水排水,2008,34(11):148-153.Li X Y,Gao N Y,Chen J M,et al.Effect of NOM on PACabsorption of 2-MIB from raw water[J].Water and Wastewater Engineering,2008,34(11):148-153.
[29]潘菲.磁性阴离子交换树脂对腐殖酸的吸附行为与机理研究[D].南京:南京大学,2012:53-59.Pan F.Adsorption study of humic acid on mangnetic anion exchange resin[D].Nanjing:Nanjing University,2012:53-59.
[30]Han Z G,Chen W,Li L,et al.Combination of chlorine and magnetic ion exchange resin for drinking water treatment of algae[J].Journal of Central South University of Technology,2010,17(5):979-984.
[31]丁文川,田秀美,王定勇,等.腐殖酸对生物炭去除水中Cr(Ⅵ)的影响机制研究[J].环境科学,2012,33(11):3847-3853.Ding W C,Tian X M,Wang D Y,et al.Humic acid for biochar to remove Cr(VI)water influence mechanism research[J].Environmental Science,2012,33(11):3847-3853.
[32]鲁仙.磁性离子交换树脂去除水源水中腐殖酸的特性与机制研究[D].马鞍山:安徽工业大学,2014:30-32,100-102.Lu X.The study on removal characteristic and mechanism of humic acid in source water using magnetic ion exchange(MIEX)resin[D].Ma?anshan:Anhui University of Technology,2014:30-32,100-102.
[33]朱云华.MIEX树脂去除水源中没食子酸的特性与机理研究[D].马鞍山:安徽工业大学,2016:29-30,59-60.Zhu Y H.Study on the characteristics and mechanism of MIEXresin removal of gallic acid in water source[D].Ma?anshan:Anhui University of Technology,2016:29-30,59-60.
[34]Huang G L,Shi J X,Tim A G.Langrish.removal of Cr(VI)from aqueous solution using activated carbon modified with nitric acid[J].Chemical Engineering Journal,2009,152(2):434-439.
[35]张晋鸣,吴琼,李石雷,等.金属离子对不同分子量腐殖酸生成三卤甲烷的影响[J].广州化学,2016,41(5):28-32.Zhang J M,Wu Q,Li S L,et al.The effect of metal ion on the formation of trihalomethane in different molecular weight humic acid[J].Guangzhou Chemical,2016,41(5):28-32.
[36]王津南,李爱民,张波,等.胺基修饰大孔树脂对腐殖酸的吸附研究[J].离子交换与吸附,2008,24(1):33-39.Wang J N,Li A M,Zhang B,et al.Study on adsorption of humic acid by amines modified macroporous resin[J].Ion Exchange and Adsorption,2008,24(1):33-39.
[37]Langmuir I.The constitution and fundamental properties of solids and liquids:Part I.solids[J].J.Franklin Inst.,1917,184(5):102-105.
[38]吴沙沙,毕二平.可溶性腐殖酸和溶液pH对高岭土吸附诺氟沙星的影响[J].环境科学研究,2014,27(11):1338-1344.Wu S S,Bi E P.Effects of pH and dissolved humic acid on norfloxacin sorption to kaolin[J].Research of Environmental Sciences,2014,27(11):1338-1344.
[39]Bulut E,Ozacar M,Sengil I A.Equilibrium and kinetic data and process design for adsorption of Congo Red onto bentonite[J].J.Hazard.Mater.,2008,154(1/3):613-622.
[40]Oladoja N A,Aboluwoye C O,Oladimeji Y B,et al.Studies on castor seed shell as a sorbent in basic dye contaminated wastewater remediation[J].Desalination,2008,227(1):190-203.
[2]Chen C,Apul O G,Karanfil T.Removal of bromide from surface waters using silver impregnated activated carbon[J].Water Res.,2017,113:223-230.
[3]梅红,丁国际,黄鑫,等.含溴黄浦江水消毒过程中溴代三卤甲烷和卤乙酸的生成特性[J].环境科学学报,2011,31(10):2162-2168.Mei H,Ding G J,Huang X,et al.Formation of Br-THMs and Br-HAAs in bromide-containing huangpu river water during disinfection[J].Acta Scientiae Circumstantiae,2011,31(10):2162-2168.
[4]朱云华,丁磊,钟梅英,等.载银沸石吸附去除水中溴离子的特性研究[J].硅酸盐通报,2015,34(7):1857-1863.Zhu Y H,Ding L,Zhong M Y,et al.Adsorption properties of bromide from aqueous solutions using silver-loaded zeolite[J].Bulletin of the Chinese Ceramic Society,2015,34(7):1857-1863.
[5]Watson K,FarréM J,Knight N.Comparing a silver-impregnated activated carbon with an unmodified activated carbon for disinfection by-product minimisation and precursor removal[J].Sci.Total Environ.,2016,542A:672-684.
[5]刘彤冕,崔福义,赵志伟,等.溴酸盐和溴离子在活性炭上的竞争吸附研究[J].给水排水,2010,36(3):118-122.Liu T M,Cui F Y,Zhao Z W,et al.Study on the competitive adsorption of bromate and bromide on activated carbon[J].Water and Wastewater Engineering,2010,36(3):118-122.
[7]严刚,钟宇,成双,等.镁铝型水滑石的合成及其对溴离子的吸附[J].青海大学学报,2011,29(5):9-12.Yan G,Zhong Y,Cheng S,et al.Preparation of Mg-Al hydrotalcite and its capability for bromide anion[J].Journal of Qinghai University,2011,29(5):9-12.
[8]张蕾,严刚.焙烧态镁铝水滑石吸附水中溴离子的研究[J].科技通报,2016,32(3):214-217.Zhang L,Yan G.Adsorption of bromide ion from aqueous solution by calcined Mg-Al hydrotalcites[J].Bulletin of Science and Technology,2016,32(3):214-217.
[9]侯杰.三种壳聚糖对海水溴离子的吸附性能研究[D].青岛:中国海洋大学,2009:9-10.Hou J.A study on the adsorption performance of seawater bromide ion using three chitosans[D].Qingdao:Ocean University of China,2009:9-10.
[10]孟范平,侯杰,姚瑞华.硝酸镧改性壳聚糖对Br-的吸附性能研究[J].现代化工,2008,28(增刊2):293-299.Meng F P,Hou J,Yao R H.Study on adsorption behaviors of bromide ion using lanthanum-modified chitosan[J].Modern Chemical Industry,2008,28(S2):293-299.
[11]Gong C,Zhang Z,Qian Q,et al.Removal of bromide from water by adsorption on silver-loaded porous carbon spheres to prevent bromate formation[J].Chemical Engineering Journal,2013,218(4):333-340.
[12]郭立俊,魏红彬.银纳米粒子的制备及溴离子对其表面性质的影响[J].河南大学学报(自然科学版),2000,30(3):20-23.Guo L J,Wei H B.The preparation of Ag nanoparticle and its surface properties influenced by Br-[J].Journal of Henan University(Natural Science),2000,30(3):20-23.
[13]Kitis M,Harman B?,Yigit N O,et al.The removal of natural organic matter from selected turkish source waters using magnetic ion exchange resin(MIEX?)[J].React.Funct.Polym.,2007,67(12):1495-1504.
[14]Nguyen T V,Zhang R,Vigneswaran S,et al.Removal of organic matter from effluents by magnetic ion exchange(MIEX?)[J].Desalination,2011,276(1/3):96-102.
[15]陈卫,韩志刚,刘成,等.磁性离子交换树脂对原水中有机物去除效能的研究[J].中国环境科学,2009,29(7):707-712.Chen W,Han Z G,Liu C,et al.Removal efficiency of organic matter in raw water with a magnetic ion exchange resin[J].China Environmental Science,2009,29(7):707-712.
[16]Fearing D A,Banks J,Guyetand S,et al.Combination of ferric and MIEX for the treatment of a humic rich water[J].Water Res.,2004,38(10):2551-2558.
[17]Boyer T H,Singer P C.Bench-scale testing of a magnetic ion exchange resin for removal of disinfection by-product precursors[J].Water Res.,2005,39(7):1265-1276.
[18]Ding L,Deng H,Wu C,et al.Affecting factors,equilibrium,kinetics and thermodynamics of bromide removal from aqueous solutions by MIEX resin[J].Chemical Engineering Journal,2012,S181/182(2):360-370.
[19]陈卫,曹喆,刘成,等.MIEX对水中溴离子的去除效能及其影响因素[J].土木建筑与环境工程,2012,34(3):133-137.Chen W,Cao Z,Liu C,et al.Removal efficiency and influence factors of bromide in water by MIEX[J].Journal of Civil,Architectural and Environmental Engineering,2012,34(3):133-137.
[20]Hsu S,Singer P C.Removal of bromide and natural organic matter by anion exchange[J].Water Res.,2010,44(7):2133-2140.
[21]Phetrak A,Lohwacharin J,Sakai H,et al.Simultaneous removal of dissolved organic matter and bromide from drinking water source by anion exchange resins for controlling disinfection by-products[J].J.Environ.Sci.,2014,26(6):1294-1300.
[22]靳晓鹏,丁磊,王丹丹,等.MIEX树脂去除水源中突发性六价铬污染的参数优化[J].过程工程学报,2017,17(4):716-724.Jin X P,Ding L,Wang D D,et al.Parameters optimizing of removal of hexavalent chromium from the emergently polluted raw water using MIEX resin[J].Chin.J.Process Eng.,2017,17(4):716-724.
[23]Hakim A,Kobayashi M.Aggregation and charge reversal of humic substances in the presence of hydrophobic monovalent counter-ions:effect of hydrophobicity of humic substances[J].Colloids Surf.,A,2018,540:1-10.
[24]杨毅,兰亚琼,金鹏康,等.腐殖酸与Cd2+的结合特性及其影响因素[J].环境化学,2017,36(6):1198-1203.Yang Y,Lan Y Q,Jin P K,et al.Characteristic and influential factors of humic acid complexed with Cd2+[J].Environment Chemistry,2017,36(6):1198-1203.
[25]高教成,徐兰云.浅述离子交换动力学模型及其机理[J].科技资讯,2015,13(22):21-22.Gao J C,Xu L Y.The dynamic model and its mechanism of the shallow ion exchange[J].Science and Technology Information,2015,13(22):21-22.
[26]Humbert H,Gallard H,Suty H,et al.Natural organic matter(NOM)and pesticides removal using a combination of ion exchange resin and powdered activated carbon(PAC)[J].Water Res.,2008,42(6/7):1635-1643.
[27]刘成,陈卫,李磊,等.MIEX预处理技术对长江原水中有机物的去除效能[J].环境科学,2009,30(6):1639-1643.Liu C,Chen W,Li L,et al.Removal effect of organics in Yangtze river raw water by MIEX resin pretreatment[J].Environment Science,2009,30(6):1639-1643.
[28]李学艳,高乃云,沈吉敏,等.水中天然有机物对粉末活性炭吸附2-MIB的影响[J].给水排水,2008,34(11):148-153.Li X Y,Gao N Y,Chen J M,et al.Effect of NOM on PACabsorption of 2-MIB from raw water[J].Water and Wastewater Engineering,2008,34(11):148-153.
[29]潘菲.磁性阴离子交换树脂对腐殖酸的吸附行为与机理研究[D].南京:南京大学,2012:53-59.Pan F.Adsorption study of humic acid on mangnetic anion exchange resin[D].Nanjing:Nanjing University,2012:53-59.
[30]Han Z G,Chen W,Li L,et al.Combination of chlorine and magnetic ion exchange resin for drinking water treatment of algae[J].Journal of Central South University of Technology,2010,17(5):979-984.
[31]丁文川,田秀美,王定勇,等.腐殖酸对生物炭去除水中Cr(Ⅵ)的影响机制研究[J].环境科学,2012,33(11):3847-3853.Ding W C,Tian X M,Wang D Y,et al.Humic acid for biochar to remove Cr(VI)water influence mechanism research[J].Environmental Science,2012,33(11):3847-3853.
[32]鲁仙.磁性离子交换树脂去除水源水中腐殖酸的特性与机制研究[D].马鞍山:安徽工业大学,2014:30-32,100-102.Lu X.The study on removal characteristic and mechanism of humic acid in source water using magnetic ion exchange(MIEX)resin[D].Ma?anshan:Anhui University of Technology,2014:30-32,100-102.
[33]朱云华.MIEX树脂去除水源中没食子酸的特性与机理研究[D].马鞍山:安徽工业大学,2016:29-30,59-60.Zhu Y H.Study on the characteristics and mechanism of MIEXresin removal of gallic acid in water source[D].Ma?anshan:Anhui University of Technology,2016:29-30,59-60.
[34]Huang G L,Shi J X,Tim A G.Langrish.removal of Cr(VI)from aqueous solution using activated carbon modified with nitric acid[J].Chemical Engineering Journal,2009,152(2):434-439.
[35]张晋鸣,吴琼,李石雷,等.金属离子对不同分子量腐殖酸生成三卤甲烷的影响[J].广州化学,2016,41(5):28-32.Zhang J M,Wu Q,Li S L,et al.The effect of metal ion on the formation of trihalomethane in different molecular weight humic acid[J].Guangzhou Chemical,2016,41(5):28-32.
[36]王津南,李爱民,张波,等.胺基修饰大孔树脂对腐殖酸的吸附研究[J].离子交换与吸附,2008,24(1):33-39.Wang J N,Li A M,Zhang B,et al.Study on adsorption of humic acid by amines modified macroporous resin[J].Ion Exchange and Adsorption,2008,24(1):33-39.
[37]Langmuir I.The constitution and fundamental properties of solids and liquids:Part I.solids[J].J.Franklin Inst.,1917,184(5):102-105.
[38]吴沙沙,毕二平.可溶性腐殖酸和溶液pH对高岭土吸附诺氟沙星的影响[J].环境科学研究,2014,27(11):1338-1344.Wu S S,Bi E P.Effects of pH and dissolved humic acid on norfloxacin sorption to kaolin[J].Research of Environmental Sciences,2014,27(11):1338-1344.
[39]Bulut E,Ozacar M,Sengil I A.Equilibrium and kinetic data and process design for adsorption of Congo Red onto bentonite[J].J.Hazard.Mater.,2008,154(1/3):613-622.
[40]Oladoja N A,Aboluwoye C O,Oladimeji Y B,et al.Studies on castor seed shell as a sorbent in basic dye contaminated wastewater remediation[J].Desalination,2008,227(1):190-203.