高级搜索

白云石和硫酸亚铁复配对城市污泥中重金属形态分布及生物有效性的影响

,  ,  , 

downloadPDF

上一篇

下一篇

陶祥运, 李磊明, 刘小红, 司友斌. 白云石和硫酸亚铁复配对城市污泥中重金属形态分布及生物有效性的影响[J]. 环境工程学报, 2018, 12(2): 654-662. doi: 10.12030/j.cjee.201707141
引用本文: 陶祥运, 李磊明, 刘小红, 司友斌. 白云石和硫酸亚铁复配对城市污泥中重金属形态分布及生物有效性的影响[J]. 环境工程学报, 2018, 12(2): 654-662. doi: 10.12030/j.cjee.201707141
shu
TAO Xiangyun, LI Leiming, LIU Xiaohong, SI Youbin. Effect of dolomite-ferrous sulfate complex on speciation distribution and bioavailability of heavy metals in municipal sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(2): 654-662. doi: 10.12030/j.cjee.201707141
Citation: TAO Xiangyun, LI Leiming, LIU Xiaohong, SI Youbin. Effect of dolomite-ferrous sulfate complex on speciation distribution and bioavailability of heavy metals in municipal sludge[J]. Chinese Journal of Environmental Engineering, 2018, 12(2): 654-662. doi: 10.12030/j.cjee.201707141
shu

白云石和硫酸亚铁复配对城市污泥中重金属形态分布及生物有效性的影响

  • 1.

    安徽农业大学资源与环境学院,农田生态保育与污染防控安徽省重点实验室,合肥 230036

  • 基金项目:

    公益性行业(农业)科研专项(201303101-06)

    国家科技支撑计划项目(2015BAD05B04-02)

Effect of dolomite-ferrous sulfate complex on speciation distribution and bioavailability of heavy metals in municipal sludge

  • 1.

    Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environmental Science, Anhui Agricultural University, Hefei 230036, China

  • Fund Project:

  • 摘要: 以合肥市某污水处理厂污泥为研究对象,研究白云石、硫酸亚铁以及白云石和硫酸亚铁复合物作为改良剂对污泥重金属形态和生物有效性的影响,并对其钝化机理进行了初步研究。结果表明:白云石可以提高污泥pH,硫酸亚铁则降低污泥的pH,白云石和硫酸亚铁复配添加时,污泥pH变化并不显著。白云石对污泥中Cu和Cd有较好钝化作用,硫酸亚铁对污泥中As具有显著钝化作用,白云石和铁盐复配对污泥中重金属Cu、Zn、Cd和As均有显著钝化作用。白云石和硫酸亚铁处理可显著降低污泥中重金属有效态含量,其中以5%白云石和5%硫酸亚铁复配处理的效果最好,与对照相比,污泥中的有效Cu、Zn、Cd和As分别减少了59.58%、42.26%、40.93%和55.68%。SEM-EDS和Visual MINTEQ模拟结果显示,白云石中的碳酸根离子能够与重金属发生沉淀反应。盆栽实验结果显示,污泥中加入白云石和硫酸亚铁后,青菜地上部和根部重金属含量降低,地上部Cu、Zn、Cd和As最大降低程度分别为53.56%、34.51%、57.29和77.04%。
    Abstract: The treatment methods for the sludge from Hefei municipal wastewater treatment plant were studied, and the effects of three amendments dolomite, ferrous sulfate and dolomite-ferrous sulfate complex on the speciation distribution and bioavailability of heavy metals in the sludge were investigated, besides, a preliminary study on the mechanism of passivation were also investigated. The results showed that the addition of dolomite could raise the pH value of sludge, however, ferrous sulfate could reduce the sludge pH. When the dolomite-ferrous sulfate complex were added, the change of sludge pH was not significant. Dolomite has a better passivation effect on Cu and Cd in sludge, however, ferrous sulfate has a significant passivation effect on As in sludge. Dolomite-ferrous sulfate complex had the significant passivation effect on heavy metals of Cu, Zn,Cd and As in the sludge.Dolomite-ferrous sulfate complex could significantly reduce the available state content of heavy metals in the sludge, 5% dolomite and 5% ferrous sulfate complex treatment gave the best result. Compared with the control, the available contents of Cu, Zn and As decreased 59.58%, 42.26%,40.93% and 55.68%, respectively. SEM-EDS and Visual MINTEQ simulation results showed that the carbonate ions in the dolomite can react with the heavy metal to form a precipitate. The results of pot experiments showed that the accumulation of heavy metals in the upper part and the roots of Brassica chinensis L. was greatly reduced by dolomite and ferrous sulfate amendments to the sludge. The contents of Cu, Zn,Cd and As in the upper part had the maximum reduction rates of 53.56%, 34.51%, 57.29,7.04%, respectively.
  • 加载中
  • [1] GIBLIN A E, WESTON N B, BANTA G T, et al.The effects of salinity on nitrogen losses from an oligohaline estuarine sediment[J].Estuaries & Coasts,2010,3(5):1058-1064
    [2] FUERHACKER M, HAILE T M, KOGELNIG D, et al.Application of ionic liquids for the removal of heavy metals from wastewater and activated sludge[J].Water Science & Technology,2012,5(10):1765-1773
    [3] SPRYNSKYY M.Solid-liquid-solid extraction of heavy metals (Cr, Cu, Cd, Ni and Pb) in aqueous systems of zeolite-sewage sludge[J].Journal of Hazardous Materials,2009,1(2/3):1377-1383
    [4] 李剑睿, 徐应明, 林大松, 等.农田重金属污染原位钝化修复研究进展[J].生态环境学报,2014,3(4):721-728
    [5] SUN Y, ZHAO D, XU Y, et al.Effects of sepiolite on stabilization remediation of heavy metal-contaminated soil and its ecological evaluation[J].Frontiers of Environmental Science & Engineering,2016,0(1):85-92
    [6] ANTHIMOS X, CHRISTINA S, NYMPHODORA P.Stabilization of Pb and As in soils by applying combined treatment with phosphates and ferrous iron[J].Journal of Hazardous Materials, 2010,7(1/2/3):929-937
    [7] 姜超强, 董建江, 祖朝龙, 等.改良剂对土壤酸碱度和烤烟生长及烟叶中重金属含量的影响[J].土壤,2015,7(1):171-176
    [8] 向猛, 黄益宗, 蔡立群, 等.改良剂对土壤As钝化作用及生物可给性的影响[J].环境化学,2016,5(2):317-322
    [9] 王旌, 付融冰, 罗启仕, 等.亚铁盐对城市污泥中重金属的稳定化作用研究[J].环境科学,2010,1(4):1036-1040
    [10] 鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社, 1999
    [11] WANG F H, ZHANG F, CHEN Y J, et al.A comparative study on the heavy metal solidification/stabilization performance of four chemical solidifying agents in municipal solid waste incineration fly ash[J].Journal of Hazardous Materials,2015,0:451-458
    [12] 李丽君, 张强, 白光杰, 等.改良剂和油菜对土壤重金属有效态的影响[J].水土保持学报,2014,8(1):246-251
    [13] ALBADARIN A B, MO J, GLOCHEUX Y, et al.Preliminary investigation of mixed adsorbents for the removal of copper and methylene blue from aqueous solutions[J].Chemical Engineering Journal,2014,5(7):525-534
    [14] QIU G, XIE Q, LIU H, et al.Removal of Cu(Ⅱ) from aqueous solutions using dolomite-palygorskite clay: Performance and mechanisms[J].Applied Clay Science,2015,8:107-115
    [15] PEHLIVAN E, OZKAN A M, DIN S, et al.Adsorption of Cu2+ and Pb2+ ion on dolomite powder[J].Journal of Hazardous Materials,2009,7(1/2/3):1044-1049
    [16] KIM S C, KIM H S, SEO B H, et al.Phytoavailability control based management for paddy soil contaminated with Cd and Pb: Implications for safer rice production[J].Geoderma,2016,0:83-88
    [17] 朱锋, 邹佳佳, 朱端卫, 等.弱碱性矿粉对轻度Cu和Zn污染土壤的钝化修复试验研究[J].安全与环境工程,2016,3(6):65-71
    [18] LEUPIN O X, HUG S J.Oxidation and removal of arsenic(Ⅲ)from aerated groundwater by filtration through sand and zero-valent iron[J].Water Research,2005,9(9):1729-1740
    [19] 郭慧.氢氧化铁和羟基氧化铁的催化相转化机理研究[D].石家庄:河北师范大学, 2006
    [20] APUL D S, GARDNER K H, EIGHMY T T, et al.Simultaneous application of dissolution/precipitation and surface complexation/surface precipitation modeling to contaminant leaching[J].Environmental Science & Technology,2005,9(15):5736-5741
    [21] 章骅, 何品晶, 李忻洁, 等.模型化研究pH对垃圾焚烧飞灰金属浸出的影响机制[J].环境科学,2008,9(1):268-272
    [22] AND J Y K, DAVIS A P, KIM K W.Stabilization of available arsenic in highly contaminated mine tailings using iron[J].Environmental Science & Technology,2003,7(1):189-195
    [23] WARREN G P, ALLOWAY B J.Reduction of arsenic uptake by lettuce with ferrous sulfate applied to contaminated soil[J].Journal of Environmental Quality,2003,2(3):767-772
    [24] 王浩, 潘利祥, 张翔宇, 等.复合稳定剂对砷污染土壤的稳定研究[J].环境科学,2013,4(9):3587-3594
    [25] CASTALDI P, SANTONA L, MELIS P.Heavy metal immobilization by chemical amendments in a polluted soil and influence on white lupin growth[J].Chemosphere,2005,0(3):365-371
    [26] SONG X D, XUE X Y, CHEN D Z, et al.Application of biochar from sewage sludge to plant cultivation: Influence of pyrolysis temperature and biochar-to-soil ratio on yield and heavy metal accumulation[J].Chemosphere,2014,9:213-220
    [27] 杨文弢, 周航, 邓贵友, 等.组配改良剂对污染稻田中铅、镉和砷生物有效性的影响[J].环境科学学报,2016,6(1):257-263
    [28] 于志红, 周莉, 沈跃, 等.铜污染棕壤中6种钝化材料对小油菜吸收铜的影响[J].安全与环境学报,2016,6(1):239-244
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  3280
  • HTML全文浏览数:  2852
  • PDF下载数:  367
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-02-08

白云石和硫酸亚铁复配对城市污泥中重金属形态分布及生物有效性的影响

  • 1. 安徽农业大学资源与环境学院,农田生态保育与污染防控安徽省重点实验室,合肥 230036
基金项目:

公益性行业(农业)科研专项(201303101-06)

国家科技支撑计划项目(2015BAD05B04-02)

摘要: 以合肥市某污水处理厂污泥为研究对象,研究白云石、硫酸亚铁以及白云石和硫酸亚铁复合物作为改良剂对污泥重金属形态和生物有效性的影响,并对其钝化机理进行了初步研究。结果表明:白云石可以提高污泥pH,硫酸亚铁则降低污泥的pH,白云石和硫酸亚铁复配添加时,污泥pH变化并不显著。白云石对污泥中Cu和Cd有较好钝化作用,硫酸亚铁对污泥中As具有显著钝化作用,白云石和铁盐复配对污泥中重金属Cu、Zn、Cd和As均有显著钝化作用。白云石和硫酸亚铁处理可显著降低污泥中重金属有效态含量,其中以5%白云石和5%硫酸亚铁复配处理的效果最好,与对照相比,污泥中的有效Cu、Zn、Cd和As分别减少了59.58%、42.26%、40.93%和55.68%。SEM-EDS和Visual MINTEQ模拟结果显示,白云石中的碳酸根离子能够与重金属发生沉淀反应。盆栽实验结果显示,污泥中加入白云石和硫酸亚铁后,青菜地上部和根部重金属含量降低,地上部Cu、Zn、Cd和As最大降低程度分别为53.56%、34.51%、57.29和77.04%。

English Abstract

参考文献 (28)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心