高级搜索

改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复

,  ,  ,  , 

downloadPDF

上一篇

下一篇

丁振亮, 赵玲, 续晓云, 罗启仕, 曹心德. 改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复[J]. 环境化学, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
引用本文: 丁振亮, 赵玲, 续晓云, 罗启仕, 曹心德. 改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复[J]. 环境化学, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
shu
DING Zhenliang, ZHAO Ling, XU Xiaoyun, LUO Qishi, CAO Xinde. Enhanced immobilization of Pb/Zn in compound contaminated soil by modified natural phosphate rock[J]. Environmental Chemistry, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
Citation: DING Zhenliang, ZHAO Ling, XU Xiaoyun, LUO Qishi, CAO Xinde. Enhanced immobilization of Pb/Zn in compound contaminated soil by modified natural phosphate rock[J]. Environmental Chemistry, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
shu

改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复

  • 1.

    上海交通大学环境科学与工程学院, 上海, 200240;

  • 2.

    上海市环境科学研究院, 上海, 200240

  • 基金项目:

    国家自然科学基金项目(21107070,21377081),上海市科委支撑重点项目(13231202502)资助.

Enhanced immobilization of Pb/Zn in compound contaminated soil by modified natural phosphate rock

  • 1.

    School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China;

  • 2.

    Shanghai Academy of Environmental Sciences, Shanghai, 200240, China

  • Fund Project:

  • 摘要: 采用草酸和柠檬酸分别与天然磷灰石共培养以对其改性,并将改性磷灰石用于Pb/Zn复合污染土壤的稳定化修复,借助XRD、FTIR等仪器方法表征改性磷灰石的物相组成及其P结合形态的转变,采用TCLP方法评价改性天然磷灰石对土壤重金属的修复效果.研究表明,草酸改性磷灰石诱导了草酸钙生成,并且32.4%的P由稳定形态转化为水溶态,而柠檬酸改性未能使磷灰石主要成分发生显著变化,仅有0.28%的P转化为水溶态P.与天然磷灰石相比,改性磷灰石提高了对Pb和Zn的稳定性.草酸改性磷灰石可同时有效地稳定土壤中的Pb和Zn,稳定化效率分别为68%—100%和64%—73%,其固定机制主要是形成难溶的磷酸盐沉淀;柠檬酸改性磷灰石对Pb和Zn的稳定化效率分别为<20%和62%—69%,对Pb和Zn的稳定性主要是通过吸附作用.总之,草酸改性磷灰石对Pb和Zn的稳定化优于柠檬酸改性磷灰石,是一种高效经济的土壤重金属稳定化修复材料.
    Abstract: Natural phosphate rock was modified with oxalic acid and citric acid, respectively, and then applied into contaminated soil for immobilization of Pb and Zn. XRD and FTIR were used to characterize the composition and P species in phosphate rock due to the modification. TCLP method was used to evaluate the effect of modified phosphate rock on the immobilization of Pb and Zn in contaminated soil. The results showed that CaC2O4·H2O was formed in phosphate rock with oxalic acid modification, and the soluble P increased by 32.4%, compared to that in the phosphate rock without modification. However, the composition of phosphate rock remained unchanged after citric acid modification, and the soluble P only increased by 0.28%.Compared to natural phosphate rock, modified phosphate rock enhanced the immobilization of Pb and Zn in soil. Oxalic acid modified phosphate rock simultaneously and effectively immobilized Pb and Zn in soil, and the efficiency was 68%—100% for Pb and 64%—73% for Zn, respectively. The main mechanism was phosphate precipitation between Pb and soluble P. The efficiency of immobilizing Pb and Zn by citric acid modified phosphate rock was less than 20% for Pb and 62%—69% for Zn, respectively. The immobilization of Pb and Zn was mainly through adsorption. In conclusion, oxalic acid modified phosphate rock more effectively immobilized Pb and Zn than citric acid modified one, and it was an efficient and cost-effective repair material for the immobilization of heavy metals in soil.
  • 加载中
  • [1] 顾家伟.我国城市街尘重金属污染研究进展与趋势[J].地球与环境, 2014, 42(5):695-701
    [2] 吴烈善, 吕宏虹, 苏翠翠, 等. 环境友好型淋洗剂对重金属污染土壤的修复效果[J].环境工程学报, 2014, 8(10):4487-4491
    [3] Fisher I J, Pain D J, Thomas V G, et al. A review of lead poisoning from ammunition sources in terrestrial birds[J]. Biological Conservation, 2006, 131(3): 421-432
    [4] Cao X D, Ma L Q, Chen M, et al. Impacts of phosphate amendments on lead biogeochemistry at a contaminated site[J]. Environmental Science and Technology, 2002, 36(24): 5296-5304
    [5] Cao X D, Ma L Q, Rhue D R, et al. Mechanisms of lead, copper and zinc retention by phosphate rock[J]. Environmental Pollution, 2004, 131(3): 435-444
    [6] Cao X D, Wahbic A, Ma L N, et al. Immobilization of Zn, Cu, and Pb in contaminated soils using phosphate rock and phosphoric acid[J]. Journal of Hazardous Materials, 2009, 164(2/3):555-564
    [7] 梁媛, 王晓春, 曹心德, 等. 基于磷酸盐、碳酸盐和硅酸盐材料化学钝化修复重金属污染土壤的研究进展[J]. 环境化学, 2012, 31(1):17-23
    [8] Park J H, Bolan N, Megharaj M, et al. Comparative value of phosphate sources on the immobilization of lead, and leaching of lead and phosphorus in lead contaminated soils[J]. Science of the Total Environment, 2011, 409(4): 853-860
    [9] Mignardi S, Corami A, Ferrini V, et al. Evaluation of the effectiveness of phosphate treatment for the remediation of mine waste soils contaminated with Cd, Cu, Pb, and Zn[J]. Chemosphere, 2012, 86: 354-360
    [10] Song Y C, Sivakumar S, Nguyen T, et al. The immobilization of heavy metals in biosolids using phosphate amendments - Comparison of EPA (6010 and 3051) and selective sequential extraction methods[J].Hazardous Material, 2009, 167(1/3): 1033-1037
    [11] Tang W N, Li Z A, Qiu J, et al. Lime and phosphate could reduce cadmium uptake by five vegetables commonly grown in South China[J]. Pedosphere, 2011, 21(2): 223-229
    [12] Chaney L R, Ryan J A. Risk based standards for arsenic, lead, and cadmium in urban soils[S]. Dechema, Frankfurt, 1994: 130
    [13] 刘永红, 马苏威, 岳霞丽, 等. 土壤环境中的小分子有机酸及其环境效应[J].环境农业大学学报, 2014, 33(2):133-138
    [14] Kpomblekou K, Tabatabai M A. Effect of low-molecular weight organic acids on phosphorus release and phytoavailabilty of phosphorus in phosphate rocks added to soils[J]. Agriculture, Ecosystems and Environment, 2003, 100:275-283
    [15] Jiang G J, Liu Y H, Huang L, et al. Mechanism of lead immobilization by oxalic acid-activated phosphate rocks[J].Journal of Environmental Science, 2012, 24(5):919-925
    [16] Chen S B, Ma Y B, Chen L, et al.Comparison of Pb(Ⅱ) immobilized by bone char meal and phosphate rock: Characterization and kinetic study[J]. Archives of Environmental Contamination and Toxicology, 2010, 58(1): 24-32
    [17] USEPA. Test methods for evaluating solid wastes. SW-846.3rd[S]. US Gov Print Office, Washington, DC, 1986
    [18] 许学慧, 姜冠杰, 胡红青, 等.草酸活化磷矿粉对矿区污染土壤中Cd的钝化效果[J].农业环境科学学报, 2011, 30(11):2005-2011
    [19] Wu P X, Liao Z W. Study on structural characteristics of pillared clay modified phosphate fertilizers and its increase efficiency mechanism[J]. Journal of Zhejiang University Science, 2005, 6B(3): 195-201
    [20] Slosarczyk A, Paszkiewicza Z, Paluszkiewicz C, et al. FTIR and XRD evaluation of carbonated hydroxyapatite powders synthesized by wet methods[J]. Journal of Molecular Structure, 2005, 10: 657-661
    [21] Bhadang K A, Gross K A. Influence of fluorapatite on the properties of thermally sprayed hydroxyapatite coatings[J]. Biomaterials, 2004, 25(20): 4935-4945
    [22] Veerasingam S, Venkatachalapathy R. Estimation of carbonate concentration and characterization of marine sediments by Fourier transform infrared spectroscopy[J].Infrared Physics & Technology, 2014, 66:136-140
    [23] Gholizadeh, Hojjat, Naserian, et al. Detecting carbohydrate molecular structural makeup in different types of cereal grains and different cultivars within each type of grain grown in semi-arid area using FTIR spectroscopy with uni- and multivariate molecular spectral analyses[J].Animal Feed Science and Technology, 2014, 94:136-144
    [24] Mohamed A A, Arunai N R N, Kalainathan S, et al. Microhardness and acoustic behavior of calcium oxalate monohydrate urinary stone[J]. Materials Letters, 2008, 62(15): 2351-2354
    [25] Koleva V, Stefov V, Cahil A, et al. Infrared and Raman studies of manganese dihydrogen phosphate dihydrate, Mn(H2PO4)2·2H2O. Ⅰ: Region of the vibrations of the phosphate ions and external modes of the water molecules[J]. Journal of Molecular Structure, 2009, 6:117-124
    [26] 王金磊, 王爱琴 聚丙烯酸/羟基磷灰石复合吸附剂对Pb(Ⅱ)的吸附行为[J].安全与环境报, 2009, 9(2):29
    [27] Zhu Y N, Zhang X H, Chen Y D, et al. A comparative study on the dissolution and solubility of hydroxylapatite and fluorapatite at 25 ℃ and 45 ℃[J]. Chemical Geology, 2009, 268: 94-95
    [28] Liu Y H, Feng L, Hu H Q, et al. Phosphorus release from low-grade rock phosphates by low molecular weight organic acids[J].Journal of Food, Agriculture & Environment, 2012, 10(1):1001-1007
    [29] Hu H F, Liu S L, Jie X L et al. The role of low molecular weight organic acids on mineral dissolution[J]. Chin Agr Sci Bull, 2005, 21(4):105-110
    [30] 王彩虹, 牛晓君, 周兴求, 等. 不同pH条件下沉积磷释放到水体中化学行为的模拟研究[J].四川环境, 2006, 25(1):20-22
    [31] McGowen S L, Basta N T, Brown G O. Use of diammonium phosphate to reduce heavy metal solubility and transport in smelter-contaminated soil[J]. Journal of Environmental Quality, 2001, 30(2):493-500
    [32] Yoo Munsuk S, James Bruce R. James zinc exchangeability as a function of phicitric acid-amended soil[J]. Soil Science, 2003, 03:356-367
    [33] Ownby D R, Galvan K A, Lydy M J.Lead and zinc bioavailability to Eisenia fetida after phosphorus amendment to repository soils[J].Environmental Pollution, 2005, 136:315-321
    [34] Halim M, Conte P, Piccolo A. Potential availability of heavy metals to phytoextraction from contaminated soils induced by exogenous humic substances [J].Chemosphere, 2003, 52(1): 265-275
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1385
  • HTML全文浏览数:  1298
  • PDF下载数:  716
  • 施引文献:  0
出版历程
  • 收稿日期:  2014-10-20
  • 刊出日期:  2015-06-15
丁振亮, 赵玲, 续晓云, 罗启仕, 曹心德. 改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复[J]. 环境化学, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
引用本文: 丁振亮, 赵玲, 续晓云, 罗启仕, 曹心德. 改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复[J]. 环境化学, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
shu
DING Zhenliang, ZHAO Ling, XU Xiaoyun, LUO Qishi, CAO Xinde. Enhanced immobilization of Pb/Zn in compound contaminated soil by modified natural phosphate rock[J]. Environmental Chemistry, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
Citation: DING Zhenliang, ZHAO Ling, XU Xiaoyun, LUO Qishi, CAO Xinde. Enhanced immobilization of Pb/Zn in compound contaminated soil by modified natural phosphate rock[J]. Environmental Chemistry, 2015, 34(6): 1049-1056. doi: 10.7524/j.issn.0254-6108.2015.06.2014102005
shu

改性天然磷灰石促进Pb/Zn复合污染土壤的稳定化修复

  • 1.  上海交通大学环境科学与工程学院, 上海, 200240;
  • 2.  上海市环境科学研究院, 上海, 200240
  • 收稿日期:  2014-10-20
基金项目:

国家自然科学基金项目(21107070,21377081),上海市科委支撑重点项目(13231202502)资助.

摘要: 采用草酸和柠檬酸分别与天然磷灰石共培养以对其改性,并将改性磷灰石用于Pb/Zn复合污染土壤的稳定化修复,借助XRD、FTIR等仪器方法表征改性磷灰石的物相组成及其P结合形态的转变,采用TCLP方法评价改性天然磷灰石对土壤重金属的修复效果.研究表明,草酸改性磷灰石诱导了草酸钙生成,并且32.4%的P由稳定形态转化为水溶态,而柠檬酸改性未能使磷灰石主要成分发生显著变化,仅有0.28%的P转化为水溶态P.与天然磷灰石相比,改性磷灰石提高了对Pb和Zn的稳定性.草酸改性磷灰石可同时有效地稳定土壤中的Pb和Zn,稳定化效率分别为68%—100%和64%—73%,其固定机制主要是形成难溶的磷酸盐沉淀;柠檬酸改性磷灰石对Pb和Zn的稳定化效率分别为<20%和62%—69%,对Pb和Zn的稳定性主要是通过吸附作用.总之,草酸改性磷灰石对Pb和Zn的稳定化优于柠檬酸改性磷灰石,是一种高效经济的土壤重金属稳定化修复材料.

English Abstract

    全文HTML

参考文献 (34)

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