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除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能

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朱利军, 吕景才, 刘锐平, 曲久辉, 赵元凤. 除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能[J]. 环境工程学报, 2014, 8(4): 1385-1390.
引用本文: 朱利军, 吕景才, 刘锐平, 曲久辉, 赵元凤. 除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能[J]. 环境工程学报, 2014, 8(4): 1385-1390.
shu
Zhu Lijun, Lyu Jingcai, Liu Ruiping, Qu Jiuhui, Zhao Yuanfeng. Adsorptive behaviors of aluminum hydroxide with adsorbed fluoride (AlOxHy-Fn) towards arsenic[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1385-1390.
Citation: Zhu Lijun, Lyu Jingcai, Liu Ruiping, Qu Jiuhui, Zhao Yuanfeng. Adsorptive behaviors of aluminum hydroxide with adsorbed fluoride (AlOxHy-Fn) towards arsenic[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1385-1390.
shu

除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能

  • 1.

    大连海洋大学海洋科技与环境学院, 大连 116023

  • 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:

    国家“863”高技术研究发展计划项目（2012AA062604）

    “十二五”国家科技支撑计划项目（2011zx07212-007）

  • 中图分类号: X703.5

Adsorptive behaviors of aluminum hydroxide with adsorbed fluoride (AlOxHy-Fn) towards arsenic

  • 1.

    School of Marine Science and Technology and Environment, University of Dalian Ocean, Dalian 116023, China

  • 2.

    State key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

  • Fund Project:

摘要

  • 摘要: 以活性铝氧化物AlOxHy处理某高氟地下水的中试实验获得的吸附剂废料AlOxHy-Fn为对象，考察其对三价砷（As（Ⅲ））和五价砷（As（Ⅴ））吸附去除性能，并对吸附机理进行了探讨。研究显示，AlOxHy-Fn为多孔无定型且具有不规则表面的絮状结构，比表面积为218.88 m2/g，零电荷点pHZPC在pH为8左右；AlOxHy-Fn可快速吸附As（Ⅲ）和As（Ⅴ），且反应24 h后的平衡吸附量分别为0.60和3.41 mg/g，朗格缪尔模型可以很好地描述As（Ⅲ）和As（Ⅴ）在AlOxHy-Fn表面的吸附，且As（Ⅲ）和As（Ⅴ）的最大吸附容量分别为13.63和63.27 mg/g；AlOxHy-Fn在pH=4~10范围内对As（Ⅴ）去除率在90%以上，As（Ⅲ）在中性和弱碱性pH范围内吸附效果较好，但去除率仍在32%以下。AlOxHy-Fn表面性质、砷形态分布特征等对As（Ⅲ）与As（Ⅴ）的吸附有重要影响，电负性As（Ⅴ）较电中性As（Ⅲ）更容易吸附在AlOxHy-Fn表面。AlOxHy-Fn吸附除砷过程中，在pH为6时氟溶出量最低（0.40 mg/g），过高或过低pH均会导致氟溶出量增大；氟溶出量与As（Ⅴ）吸附量之间有明显正相关关系（R2=0.97），但与As（Ⅲ）吸附量无相关关系；铝溶出量在pH为4~10范围内均很低。将AlOxHy-Fn回用作为除砷吸附剂去除工业含砷废水的砷具有良好的技术经济可行性，且将As（Ⅲ）氧化为As（Ⅴ）是提高去除效果的重要手段。
    Abstract: This study investigates the adsorptive behaviors of aluminum hydroxide with adsorbed fluoride (AlOxHy-Fn),which is obtained from a pilot-scale study for the removal of fluoride by aluminum hydroxide (AlOxHy),towards arsenite (As(Ⅲ)) and arsenate (As(Ⅴ)).AlOxHy-Fn shows low crystalline with porous surfaces,and the BET surfaces area and the zero point of charge is determined to be 218.88 m2/g and pH 8.AlOxHy-Fn can quickly adsorb both As(Ⅲ) and As(Ⅴ) and the equilibrium adsorption quantity after 24 h contact time is 0.60 mg As(Ⅲ)/g and 3.41 mg As(Ⅴ)/g,respectively.Langmuir model may well describe the adsorption of As(Ⅲ) and As(Ⅴ),and the theoretical maximum adsorption capacity is calculated to be 13.63 mg As(Ⅲ)/g and 63.27 mg As(Ⅴ)/g.The removal of As(Ⅴ) is above 90% in wide pH ranges from 4 to 10 whereas that of As(Ⅲ) is preferred under neutral and weak alkaline conditions.The removal of As(Ⅲ) and As(Ⅴ) is affected by their species distribution and the surfaces characters of AlOxHy-Fn,and the negatively-charged As(Ⅴ) is easier to adsorb onto the positive surfaces of AlOxHy-Fn than the neutral As(Ⅲ) species.The dissolution of fluoride is highly dependent on pH and is as low as 0.40 mgF/g at pH 6,which is favored at lowered or elevated pH.The dissolution of fluoride is positively correlated with the adsorption of As(Ⅴ) but shows little relativity to that of As(Ⅲ).The reclamation of AlOxHy-Fn for the treatment of industrial wastewater with arsenic is feasible and cost-effective,and the oxidation of As(Ⅲ) to As(Ⅴ) is valuable to increase the removal efficiency.
  • [1] Rao S.N., Devadas D.J.Fluoride incidence in groundwater in an area of Peninsular India.Environmental Geology, 2003, 45 (2):243-251
    [2] Galagand D.J., Vermilion J.R., Nevitt G.A., et al.Climate and fluoride intake.Public Health Rep., 1957, 72(6):484-490
    [3] Bhatnagar A., Kumar E., Sillanp M.Fluoride removal from water by adsorption:A review.Chemical Engineering Journal, 2011, 171(5):811-840
    [4] Parthasarathy N., Buffle J.Study of interaction of polymeric aluminium hydroxide with fluoride.Can.J.Chem, 1986, 64 (1):24-30
    [5] Cengeloglu Y., Kir E., Ersoz M. Removal of fluoride from aqueous solution by using red mud. Separation and Purification Technology, 2002, 28(1):81-86
    [6] Mohapatra M., Anand S., Mishra B.K., et al.Review of fluoride removal from drinking water.Journal of Environmental Management, 2009, 91(10):67-77
    [7] Chang C.F., Lin P.H., Holl W.Aluminum-type superparamagnetic adsorbents:Synthesis and application on fluoride removal.Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2006, 280 (1-3):194-202
    [8] Ghorai S., Pant K.K.Equilibrium, kinetics and breakthrough studies for adsorption of fluoride on activated alumina.Separation and Purification Technology, 2005, 42(3):265-271
    [9] Ghorai S., Pant K.K.Investigations on the column performance of fluoride adsorption by activated alumina in a fixed-bed.Chemical Engineering Journal, 2004, 98(1-2):165-173
    [10] Lounici H., Adour L., Belhocine D., et al.Novel technique to regenerate activated alumina bed saturated by fluoride ions.Chemical Engineering Journal, 2001, 81(1-3):153-160
    [11] Keiko Sasaki, Naoyuki Fukumoto, Sayo Moriyama, et al.Sorption characteristics of fluoride on to magnesium oxide-rich phases calcined at different temperatures.Journal of Hazardous Materials, 2011, 191(1-3):240-248
    [12] Fan X., Parker D.J., Smith M.D.Adsorption kinetics of fluoride on low cost materials.Water Research, 2003, 37(20):4929-4937
    [13] Liu Ruiping, Gong Wenxin, Lan Huachun, et al.Defluoridation by freshly-prepared aluminum hydroxides.Chemical Engineering Journal, 2011, 175(11):144-149
    [14] Chang Fangfang, Qu Jiuhui, Liu Huijuan, et al.Fe-Mn binary oxide incorporated into diatomite as an adsorbent for arsenite removal:Preparation and evaluation.Journal of Colloid and Interface Science, 2009, 338 (2):353-358
    [15] Liu Ruiping, Zhu Lijun, Gong Wenxin, et al.Effects of fluoride on coagulation performance of aluminum chloride towards Kaolin suapension.Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2013, 421(3):84-90
    [16] Kumar K.V., Ramamurthi V., Sivanesan S.Modeling the mechanism involved during the sorption of methylene blue onto fly ash.J.colloid Interface Sci., 2005, 284 (1):14-21
    [17] Wu F.C., Tseng R.L., Juang R.S.Kinetic modeling of liquid-phase adsorption of reactive dyes and metal ions on chitosan.Water Research, 2001, 35(3):613-618
    [18] Gong Wenxin, Qu Jiuhui, Liu Ruiping, et al.Effect of aluminum fluoride complexation on fluoride removal by coagulation.Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2012, 395(2):88-93
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  • 收稿日期:  2013-04-18
  • 刊出日期:  2014-03-28
朱利军, 吕景才, 刘锐平, 曲久辉, 赵元凤. 除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能[J]. 环境工程学报, 2014, 8(4): 1385-1390.
引用本文: 朱利军, 吕景才, 刘锐平, 曲久辉, 赵元凤. 除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能[J]. 环境工程学报, 2014, 8(4): 1385-1390.
shu
Zhu Lijun, Lyu Jingcai, Liu Ruiping, Qu Jiuhui, Zhao Yuanfeng. Adsorptive behaviors of aluminum hydroxide with adsorbed fluoride (AlOxHy-Fn) towards arsenic[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1385-1390.
Citation: Zhu Lijun, Lyu Jingcai, Liu Ruiping, Qu Jiuhui, Zhao Yuanfeng. Adsorptive behaviors of aluminum hydroxide with adsorbed fluoride (AlOxHy-Fn) towards arsenic[J]. Chinese Journal of Environmental Engineering, 2014, 8(4): 1385-1390.
shu

除氟活性铝氧化物（AlOxHy-Fn）的吸附除砷性能

  • 1.  大连海洋大学海洋科技与环境学院, 大连 116023
  • 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:  2013-04-18
基金项目:

国家“863”高技术研究发展计划项目（2012AA062604）

“十二五”国家科技支撑计划项目（2011zx07212-007）

摘要: 以活性铝氧化物AlOxHy处理某高氟地下水的中试实验获得的吸附剂废料AlOxHy-Fn为对象，考察其对三价砷（As（Ⅲ））和五价砷（As（Ⅴ））吸附去除性能，并对吸附机理进行了探讨。研究显示，AlOxHy-Fn为多孔无定型且具有不规则表面的絮状结构，比表面积为218.88 m2/g，零电荷点pHZPC在pH为8左右；AlOxHy-Fn可快速吸附As（Ⅲ）和As（Ⅴ），且反应24 h后的平衡吸附量分别为0.60和3.41 mg/g，朗格缪尔模型可以很好地描述As（Ⅲ）和As（Ⅴ）在AlOxHy-Fn表面的吸附，且As（Ⅲ）和As（Ⅴ）的最大吸附容量分别为13.63和63.27 mg/g；AlOxHy-Fn在pH=4~10范围内对As（Ⅴ）去除率在90%以上，As（Ⅲ）在中性和弱碱性pH范围内吸附效果较好，但去除率仍在32%以下。AlOxHy-Fn表面性质、砷形态分布特征等对As（Ⅲ）与As（Ⅴ）的吸附有重要影响，电负性As（Ⅴ）较电中性As（Ⅲ）更容易吸附在AlOxHy-Fn表面。AlOxHy-Fn吸附除砷过程中，在pH为6时氟溶出量最低（0.40 mg/g），过高或过低pH均会导致氟溶出量增大；氟溶出量与As（Ⅴ）吸附量之间有明显正相关关系（R2=0.97），但与As（Ⅲ）吸附量无相关关系；铝溶出量在pH为4~10范围内均很低。将AlOxHy-Fn回用作为除砷吸附剂去除工业含砷废水的砷具有良好的技术经济可行性，且将As（Ⅲ）氧化为As（Ⅴ）是提高去除效果的重要手段。

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