高级搜索

两种体系去除水体中的砷

,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

王悦, 周孜迈, 邓文娜, 张政超, 唱天鹰, 柳听义. 两种体系去除水体中的砷[J]. 环境化学, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
引用本文: 王悦, 周孜迈, 邓文娜, 张政超, 唱天鹰, 柳听义. 两种体系去除水体中的砷[J]. 环境化学, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
shu
WANG Yue, ZHOU Zimai, DENG Wenna, ZHANG Zhengchao, CHANG Tianying, LIU Tingyi. A study on the removal of arsenic from water by two systems[J]. Environmental Chemistry, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
Citation: WANG Yue, ZHOU Zimai, DENG Wenna, ZHANG Zhengchao, CHANG Tianying, LIU Tingyi. A study on the removal of arsenic from water by two systems[J]. Environmental Chemistry, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
shu

两种体系去除水体中的砷

  • 1.

    天津师范大学, 天津市水环境与水资源重点实验室, 天津, 300387;

  • 2.

    天津师范大学地理与环境科学学院, 天津, 300387

  • 基金项目:

    国家自然科学基金（21307090）和天津市科委应用基础与前沿技术研究计划重点项目（14JCZDJC41000）资助.

A study on the removal of arsenic from water by two systems

  • 1.

    Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin, 300387, China;

  • 2.

    School of Geographic and Environmental Sciences, Tianjin Normal University, Tianjin, 300387, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21307090) and Tianjin Municipal Natural Science Foundation of China (14JCZDJC41000).

  • 摘要: 砷是人类发现的毒性最强的环境污染物质之一.铁及其化合物已经被广泛应用于水体中重金属的去除并取得了一定效果，但存在去除效率低、材料成本高的缺点.为了更好地利用铁及其化合物高效去除水中重金属砷（As），本文通过加入氧化剂构建了两种反应体系，实现了对废水中砷的高效去除：分别利用零价铁（Zero valent iron，ZVI）活化过硫酸钠（sodium persulfate，PS）和亚铁离子（Fe2+）活化高锰酸钾（KMnO4）两种工艺去除了水体中的砷.通过批试验控制过硫酸钠、零价铁及高锰酸钾和亚铁的投加量，研究了各变量对As的去除效果和动力学影响.利用环境扫描电镜（SEM）对反应前后的物质的结构进行表征对比分析.研究结果表明：As溶液浓度为20 mg·L-1时，两种体系下的反应物最佳配比方案分别为0.5 g ZVI、0.1 g PS和KMnO4 0.01 g、Fe2+ 0.02 g.两种体系中As的去除率都大于99%，且反应均符合准二级动力学方程，其中，ZVI活化PS反应中产生的SO4-·对砷的去除有着至关重要的作用.两种方法对As的去除机理均包括吸附、沉淀和共沉淀作用.通过经济成本对比分析，PS-ZVI在高效去除毒性略低的As（Ⅴ）的时有明显的经济优势.
    Abstract: Arsenic is one of most toxic pollutants in some industrial effluents and contaminated waters. Iron and its compounds have been used to remove arsenic from wastewater successfully and effectively. However, low removal efficiency and high material cost limit its widely use. In order to enhance removal rates of arsenic using iron and its compounds, two oxidants (sodium persulfate (PS) and potassium permanganate (KMnO4)) were introduced into PS-zero-valent iron (PS-ZVI) and KMnO4-Fe2+ systems, respectively. The effects of various variables were studied by controlling the dosage of ZVI powder, PS, KMnO4 and Fe2+, respectively. The morphologies of ZVI before and after reaction were characterized by scanning electron microscopy (SEM). With an initial As (V) concentration of 20 mg·L-1,ZVI dosage of 0.5 g, PS dosage of 0.1 g (KMnO4 dosage of 0.01 g, Fe2+ dosage of 0.02 g), pH 7 and a temperature of 20℃,removal rate reached 100%. It demonstrated that removal rates of As (V) are all more than 99% when the concentration of As (V) was between 20-100 mg·L-1. Pseudo-second order kinetic model can well describe the reaction. Furthermore, PS activated by ZVI was much effective to remove As(V) from wastewater due to the production of sulfate radical, which played an important role in the process. The study indicated that removal mechanism of As (V) by both systems mainly included adsorption, precipitation and co-precipitation. In contrast, PS-ZVI system has obvious economic advantages in efficiently removing As (V) from wastewater.
  • 加载中
  • [1] JIA XY, GONG D R, WANG J N, et al. Arsenic speciation in environmental waters by a new specific phosphine modified polymer microsphere preconcentration and HPLC-ICP-MS determination[J]. Talanta, 2016, 160(1):437-443.
    [2] SINGH R K. Lectotypification of four species of Indian Trachyspermum (Apiaceae)[J]. Telopea Journal of Plant Systematics, 2015, 18:247-253.
    [3] DENG S B, YU G, XIE S H, et al. Enhanced adsorption of arsenate on the aminated fibers:Sorption behavior and uptake mechanism[J]. Langmuir, 2008, 24(19):10961-10967.
    [4] 杨世迎, 陈友媛, 胥慧真,等.过硫酸盐活化高级氧化新技术[J].化学进展,2008,20(9):1433-1438.

    YANG S Y, CHEN Y Y, XU H Z, et al. A novel advanced oxidation technology based on activated persulfate[J]. Progress in Chemistry, 2008, 20(09):1433-1438(in Chinese).

    [5] YANG S Y, LI L, XIAO T, et al. Role of surface chemistry in modified ACF (activated carbon fiber)-catalyzed peroxymonosulfate oxidation[J]. Applied Surface Science, 2016, 163(383):142-150.
    [6] MATZEK L W, CARTER K E. Activated persulfate for organic chemical degradation:A review[J]. Chemosphere 2016, 2016(151):178-188.
    [7] YANG S, WANG P, YANG X, et al. Degradation efficiencies of azo dye Acid Orange 7 by the interaction of heat, UV and anions with common oxidants:Persulfate, peroxymonosulfate and hydrogen peroxide[J]. Journal of Hazardous Materials, 2010, 179(1-3):552-558.
    [8] 王兆慧, 宋文静, 马万红, 等.铁配合物的环境光化学及其参与的环境化学过程[J]. 化学进展, 2012, 24(Z1):423-432.

    WANG Z H, SONG W J, MA W H, et al. Environmental photochemistry of iron complexes and their involvement in environmental chemical processes[J]. Progress in Chemistry, 2012, 24(Z1):423-432(in Chinese).

    [9] 刘可. KMnO4与FeSO4联用去除水中磷的效能与机理[D].哈尔滨:哈尔滨工业大学, 2010. LIU K. Efficiency and mechanism of phosphate removal by combined use of KMnO4 and FeSO4.[D]. Harbin:Harbin Institute of Technology,2010

    (in Chinese).

    [10] 李欢旋, 万金泉, 马邕文, 等.不同粒径零价铁活化过硫酸钠氧化降解酸性橙7的影响及动力学研究[J].环境科学,2014,35(9):3422-3429.

    LI H X, WAN J Q, MA Y W, et al. Effects of particle size of zero-valent iron on the reactivity of activating persulfate and kinetics for the degradation of acid orange 7[J]. Environmental Science, 2014, 35(9):3422-3429(in Chinese).

    [11] LAAT J D, LE G T, LEGUBE B. A comparative study of the effects of chloride, sulfate and nitrate ions on the rates of decomposition of H2O2 and organic compounds by Fe(Ⅱ)/H2O2 and Fe(Ⅲ)/H2O2[J]. Chemosphere, 2004, 55(5):715-723.
    [12] SIEDLECKA E M,WIECKOWSKA A, STEPNOWSKI P, Influence of inorganic ions on MTBE degradation by Fenton's reagent[J].Journal of Hazardous Materials, 2007, 147(1-2):497-502.
    [13] OH S Y, KIM H W, PARK J M, et al. Oxidation of polyvinyl alcohol by persulfate activated with heat Fe2+, and zero-valentiron[J]. Journal of Hazardous Materials, 2009, 168(1):346-351.
    [14] SONG K, ZHOU X, LIU Y Q, et al. Improving dewaterability of anaerobically digested sludge by combination of persulfate and zero valent iron[J]. Chemical Engineering Journal, 2016, 295:436-442.
    [15] OLHA S F, AMY L T, RICHARD J W. Mechanism of Base Activation of Persulfate[J]. Environmental Science & Technology,2010, 44(16):6423-6428.
    [16] GUO X J, YANG Z, DONG H Y, et al. Simple combination of oxidants with zero-valent-iron (ZVI) achieved very rapid and highly efficient removal of heavy metals from water[J]. Water Research, 2015, 88:671-680.
    [17] LACKOVIC J A, NIKOLAIDIS N P, DOBBS G M. Inorganic arsenic removal by zero-valent iron[J]. Environmental Engineering Science, 2000, 17(1):29-39.
    [18] FARRELL J, WANG J P, O'Day A P, et al. Electrochemical and spectroscopic study of arsenate removal from water using zero-valent iron media[J]. Environmental Science & Technology, 2001, 35(10):2026-2032.
    [19] MANNING BA, HUNT ML, Amrhein C, et al. Arsenic(Ⅲ) and arsenic(V) reactions with zero valent iron corrosion products[J]. Environmental Science & Technology, 2002, 36(24):5455-5461.
    [20] SU C, PULS RW. Significance of iron (Ⅱ, Ⅲ) hydroxycarbonate green rust in arsenic remediation using zero valent iron in laboratory column tests[J]. Environmental Science & Technology, 2004, 38(19):5224-5231.
    [21] SU C, PULS R W. Arsenate and arsenite removal by zero valent iron:Kinetics, redox transformation, and implications for in situ groundwater remediation[J]. Environmental Science & Technology, 2001, 35(1):1487-1492.
    [22] WANG J W, BEJAN A D, Bunce N J. Removal of arsenic from synthetic acid mine drainage by electrochemical pH adjustment and coprecipitation with iron hydroxide[J]. Environmental Science & Technology, 2003, 37(19):4500-4506.
    [23] 李启厚, 李莉, 刘志宏, 等.碱性体系下As(Ⅲ)的催化氧化及其机理研究[J]. 矿冶工程, 2009, 29(6):64-67.

    LI Q H, LI L, LIU Z H, et al. Investigation into catalytic oxidation and its mechanism of As(Ⅲ) in alka line system[J]. Mining and Metallurgical Engineering, 2009, 29(6):64-67(in Chinese).

    [24] DENG W N, ZHOU Z M, YANG Y L, et al. Remediation of arsenic(Ⅲ) from aqueous solutions using zero-valent iron (ZVI) combined with potassium permanganate and ferrous ions[J]. Water Science & Technology, 2018, 77(2):375-386.
    [25] WOLFGANG Driehaus, REINER Seith, MARTIN Jekel. Oxidation of arsenate (Ⅲ) with manganese oxides in water treatment[J]. Water. Research., 1995, 29(1):297-305.
    [26] 姜利. 高锰酸钾预氧化-新生态铁联用去除As的效能及机理[D].哈尔滨:哈尔滨工业大学, 2008. JIANG L. Effective and mechanism of arsenite removal by potassium permanganate peroxidation and Fe(Ⅲ) formed in-situ[D]. Harbin:Harbin Institute of Technology, 2008(in Chinese).
    [27] BODY G E, ADAMSON A W, MYERS L S. The exchange adsorption of ions from aqueous solutions by organic zeolites. Ⅱ. kinetics1[J]. Journal of the American Chemical Society, 1947, 69(11):2836-2848
    [28] WEBER W J, MORRIS J C. Kinetics of adsorption on carbon from solution[J]. Journal of the Sanitary Engineering Division, 1936, 89(2):31-60.
    [29] RUDZINSKI W, PLAZINSKI W. Theoretical description of the kinetics of solute adsorption at heterogeneous solid/solution interfaces:On the possibility of distinguishing between the diffusional and the surface reaction kinetics models[J]. Applied Surface Science, 2007, 253(13):5827-5840.
    [30] CHATTERJEE A, SCHIEWER S. Multi-resistance kinetic models for biosorption of Cd by raw and immobilized citrus peels in batch and packed-bed columns[J]. Chemical Engineering Journal, 2014, 244(15):105-116.
    [31] SIMONIN J P, BOUTE J. Intraparticle diffusion-adsorption model to describe liquid/solid adsorption kinetics[J]. Chemical Engineering Journal, 2016, 15(1):161-173.
    [32] MAFU L D, MAMBA B B, MSAGATI T A M. Synthesis and characterization of ion imprinted polymeric adsorbents for the selective recognition and removal of arsenic and selenium in wastewater samples[J]. Journal of Saudi Chemical Society, 2016, 20(5):596-605.
    [33] SU F C, ZHOU H J, ZHANG Y X, et al. Three-dimensional honeycomb-like structured zero-valent iron/chitosan composite foams for effective removal of inorganic arsenic in water[J]. Journal of Colloid and Interface Science, 2016, 478:421-429.
    [34] SONG S, LOPEZ V A, Hernandez D J, et al. Arsenic removal from high-arsenic water by enhanced coagulation with ferric ions and coarse calcite[J]. Water Research, 2006, 40(2):364-372.
    [35] WANG P, CHUNG T S. Recent advances in membrane distillation processes:Membrane development, configuration design and application exploring[J]. Journal of Membrane Science, 2015, 474:39-56.
    [36] ALKORTA I, HERNANDEZA J, GARBISU C. Plants against the global epidemic of arsenic poisoning[J].Environment International, 2004, 30(7):949-951.
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2204
  • HTML全文浏览数:  2173
  • PDF下载数:  112
  • 施引文献:  0
出版历程
  • 收稿日期:  2018-03-30
  • 刊出日期:  2018-12-15
王悦, 周孜迈, 邓文娜, 张政超, 唱天鹰, 柳听义. 两种体系去除水体中的砷[J]. 环境化学, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
引用本文: 王悦, 周孜迈, 邓文娜, 张政超, 唱天鹰, 柳听义. 两种体系去除水体中的砷[J]. 环境化学, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
shu
WANG Yue, ZHOU Zimai, DENG Wenna, ZHANG Zhengchao, CHANG Tianying, LIU Tingyi. A study on the removal of arsenic from water by two systems[J]. Environmental Chemistry, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
Citation: WANG Yue, ZHOU Zimai, DENG Wenna, ZHANG Zhengchao, CHANG Tianying, LIU Tingyi. A study on the removal of arsenic from water by two systems[J]. Environmental Chemistry, 2018, 37(12): 2613-2620. doi: 10.7524/j.issn.0254-6108.2018033001
shu

两种体系去除水体中的砷

  • 1.  天津师范大学, 天津市水环境与水资源重点实验室, 天津, 300387;
  • 2.  天津师范大学地理与环境科学学院, 天津, 300387
  • 收稿日期:  2018-03-30
基金项目:

国家自然科学基金（21307090）和天津市科委应用基础与前沿技术研究计划重点项目（14JCZDJC41000）资助.

摘要: 砷是人类发现的毒性最强的环境污染物质之一.铁及其化合物已经被广泛应用于水体中重金属的去除并取得了一定效果，但存在去除效率低、材料成本高的缺点.为了更好地利用铁及其化合物高效去除水中重金属砷（As），本文通过加入氧化剂构建了两种反应体系，实现了对废水中砷的高效去除：分别利用零价铁（Zero valent iron，ZVI）活化过硫酸钠（sodium persulfate，PS）和亚铁离子（Fe2+）活化高锰酸钾（KMnO4）两种工艺去除了水体中的砷.通过批试验控制过硫酸钠、零价铁及高锰酸钾和亚铁的投加量，研究了各变量对As的去除效果和动力学影响.利用环境扫描电镜（SEM）对反应前后的物质的结构进行表征对比分析.研究结果表明：As溶液浓度为20 mg·L-1时，两种体系下的反应物最佳配比方案分别为0.5 g ZVI、0.1 g PS和KMnO4 0.01 g、Fe2+ 0.02 g.两种体系中As的去除率都大于99%，且反应均符合准二级动力学方程，其中，ZVI活化PS反应中产生的SO4-·对砷的去除有着至关重要的作用.两种方法对As的去除机理均包括吸附、沉淀和共沉淀作用.通过经济成本对比分析，PS-ZVI在高效去除毒性略低的As（Ⅴ）的时有明显的经济优势.

English Abstract

    全文HTML

参考文献 (36)

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