logo

Chinese Journal of Environmental Engineering, Volume 12 , Issue 10 : 2845-2854(2018) https://doi.org/10.12030/j.cjee.201804192

Remediation mechanism of multi-heavy metal contaminated soil by using different chemical washing agents

More info
  • ReceivedApr 27, 2018
  • AcceptedJun 29, 2018

Abstract


Funded by

国家自然科学基金资助项目


References

[1] KHALID S, SHAHID M, NIAZI N K, et al. A comparison of technologies for remediation of heavy metal contaminated soils[J].Journal of Geochemical Exploration,2017, 182(part B): 247-268. CrossRef Google Scholar

[2] 生态环境部. 2017中国生态环境状况公报[R/OL]. [2018-04-25]. http://www.zhb.gov.cn/hjzl/zghjzkgb/1 nzghjzkgb/201805/P02018053153464 5032372.pdf. Google Scholar

[3] 环境保护部, 国土资源部. 全国土壤污染状况调查公报[R/OL]. [2018-04-25]. http://www.zhb.gov.cn/gkm1/hbb/qt/201404/W020140417558995804588.pdf. Google Scholar

[4] HE B, YUN Z J, SHI J B, et al. Research progress of heavy metal pollution in China: Sources, analytical methods, status, and toxicity[J]. Chinese Science Bulletin, 2013, 58(2): 134-140. Google Scholar

[5] YAO Z, LI J, XIE H, et al. Review on remediation technologies of soil contaminated by heavy metals[J]. Procedia Environmental Sciences,2012, 16(4): 722-729. Google Scholar

[6] YANG X, MAO X, SHAO X, et al. Enhanced techniques of soil washing for the remediation of heavy metal-contaminated soils[J]. Agricultural Research, 2018, 7(2): 99-104. Google Scholar

[7] 串丽敏, 赵同科, 郑怀国, 等.土壤重金属污染修复技术研究进展[J].环境科学与技术,2014,37(S2): 213-222. Google Scholar

[8] QIAO J, SUN H, LUO X, et al. EDTA-assisted leaching of Pb and Cd from contaminated soil[J]. Chemosphere, 2017, 167: 422-428. CrossRef Google Scholar

[9] BEIYUAN J, TSANG D C W, VALIX M, et al. Combined application of EDDS and EDTA for removal of potentially toxic elements under multiple soil washing schemes[J]. Chemosphere, 2018, 205: 178-187. CrossRef Google Scholar

[10] NOWACK B, SCHULIN R, ROBINSON B H. Critical assessment of chelant-enhanced metal phytoextraction[J]. Environmental Science & Technology, 2006, 40(17): 5225-5232. CrossRef Google Scholar

[11] PÉREZ-ESTEBAN J, ESCOLÁSTICO C, MOLINER A, et al. Chemical speciation and mobilization of copper and zinc in naturally contaminated mine soils with citric and tartaric acids[J]. Chemosphere, 2013, 90(2): 276-283. CrossRef Google Scholar

[12] JIANG J, YANG M, GAO Y, et al. Removal of toxic metals from vanadium-contaminated soils using a washing method: Reagent selection and parameter optimization[J]. Chemosphere, 2017, 180: 295-301. CrossRef Google Scholar

[13] 黎诗宏,蒋卉,朱梦婷,等.有机酸对成都平原镉污染土壤的淋洗效果[J]. 环境工程学报, 2017, 11(5): 3227-3232. CrossRef Google Scholar

[14] MAKINO T, TAKANO H, KAMIYA T, et al. Restoration of cadmium-contaminated paddy soils by washing with ferric chloride: Cd extraction mechanism and bench-scale verification[J]. Chemosphere, 2008, 70(6): 1035-1043. CrossRef Google Scholar

[15] CHEN C, TIAN T, WANG M K, et al. Release of Pb in soils washed with various extractants[J]. Geoderma, 2016, 275: 74-81. CrossRef Google Scholar

[16] 许端平, 李晓波, 王宇, 等. FeCl3-柠檬酸对土壤中Pb和Cd淋洗动力学特征[J]. 环境工程学报, 2016, 10(11): 6753-6760. CrossRef Google Scholar

[17] 冯静, 张增强, 李念, 等. 铅锌厂重金属污染土壤的螯合剂淋洗修复及其应用[J]. 环境工程学报, 2015, 9(11): 5617-5625. Google Scholar

[18] 黄川, 李柳, 黄珊, 等. 重金属污染土壤的草酸和EDTA混合淋洗研究[J]. 环境工程学报, 2014, 8(8): 3480-3486. Google Scholar

[19] GAO R, ZHU P, GUO G, et al. Efficiency of several leaching reagents on removal of Cu, Pb, Cd, and Zn from highly contaminated paddy soil[J]. Environmental Science and Pollution Research, 2016, 23(22): 23271-23280. Google Scholar

[20] 许端平, 李晓波, 孙璐. 有机酸对土壤中Pb和Cd淋洗动力学特征及去除机理[J]. 安全与环境学报, 2015, 15(3): 261-266. Google Scholar

[21] 于颖, 周启星. 重金属铜在黑土和棕壤中解吸行为的比较[J]. 环境科学, 2004, 25(1): 128-132. Google Scholar

[22] 邓红侠, 杨亚莉, 李珍, 等. 不同条件下皂苷对污染塿土中Cu、Pb的淋洗修复[J]. 环境科学, 2015, 36(4): 1445-1452. Google Scholar

[23] 林青, 徐绍辉. 土壤中重金属离子竞争吸附的研究进展[J].土壤, 2008, 40(5):706-711. Google Scholar

[24] 许超, 夏北城, 林颖. EDTA和柠檬酸对污染土壤中重金属的解吸动力学及其形态的影响[J]. 水土保持学报, 2009, 23(4): 146-151. Google Scholar

[25] SUN B, ZHAO F J, LOMBI E, et al. Leaching of heavy metals from contaminated soils using EDTA[J]. Environmental Pollution, 2001, 113(2): 111-120. CrossRef Google Scholar

[26] YANG Z, ZHANG S, LIAO Y, et al. Remediation of heavy metal contamination in calcareous soil by washing with reagents: Acolumn washing[J]. Procedia Environmental Sciences, 2012, 16: 778-785. Google Scholar

[27] 向玥皎, 刘阳生. 柠檬酸、草酸对污染土壤中铅锌的静态浸提实验研究[J]. 环境工程, 2015, 33(9): 153-157. Google Scholar

[28] GUO X, WEI Z, WU Q, et al. Effect of soil washing with only chelators or combining with ferric chloride on soil heavy metal removal and phytoavailability: Field experiments[J]. Chemosphere, 2016, 147: 412-419. CrossRef Google Scholar

[29] UDOVIC M, LESTAN D. Pb, Zn and Cd mobility, availability and fractionation in aged soil remediated by EDTA leaching[J]. Chemosphere, 2009, 74(10): 1367-1373. CrossRef Google Scholar

[30] CHEN C, CHEN Y, XIE T, et al. Removal, redistribution, and potential risks of soil Cd, Pb, and Zn after washing with various extractants[J]. Environmental Science and Pollution Research, 2015, 22(21): 16881-16888. Google Scholar

[31] 李玉双, 胡晓钧, 宋雪英, 等. 柠檬酸对重金属复合污染土壤的淋洗修复效果与机理[J]. 沈阳大学学报(自然科学版) , 2012, 24(2): 6-9. Google Scholar

[32] WU L H, LUO Y M, CHRISTIE P, et al. Effects of EDTA and low molecular weight organic acids on soil solution properties of a heavy metal polluted soil[J]. Chemosphere, 2003, 50(6): 819-822. CrossRef Google Scholar

[33] 周玲玲, 张永吉, 孙丽华, 等. 铁盐和铝盐混凝对水中天然有机物的去除特性研究[J]. 环境科学, 2008, 29(5): 1187-1191. Google Scholar

[34] YI Y M, SUNG K. Influence of washing treatment on the qualities of heavy metal-contaminated soil[J]. Ecological Engineering, 2015, 81(1): 89-92. CrossRef Google Scholar

  • Fig. 1

    Washing kinetics curves of Cu, Zn, Pb and Cd from contaminated soil by using washing agents

  • Fig. 2

    Effects of washing agent concentrations on removal efficiency of Cu, Zn, Pb and Cd

  • Fig. 3

    Comparative distribution of Cu, Zn, Pb and Cd in contaminated soil after washing treatment

  • Table 1   Heavy metal contents in soil before and after polluted mg·kg

    土壤样品

    Cu

    Zn

    Pb

    Cd

    污染前

    25.17

    190.14

    219.24

    0.917

    污染后

    923.36

    1 243.46

    2 096.92

    64.55

  • Table 2   Parameters of washing kinetic equations of Cu, Zn, Pb and Cd

    重金属

    淋洗剂

    双常数模型

    lnS=A+Blnt

    Elovich模型

    S=A+Blnt

    R2

    SE

    R2

    SE

    Cu

    EDTA

    0.445 9

    0.574 4

    0.463 1

    1.534 4

    柠檬酸

    0.499 0

    0.895 1

    0.517 4

    2.484 9

    FeCl3

    0.892 7

    1.288 3

    0.900 7

    3.505 7

    Zn

    EDTA

    0.941 4

    0.608 7

    0.960 1

    0.502 4

    柠檬酸

    0.850 3

    1.693 8

    0.841 0

    1.745 3

    FeCl3

    0.450 7

    1.114 6

    0.464 3

    1.100 7

    Pb

    EDTA

    0.803 3

    0.598 0

    0.799 1

    0.604 4

    柠檬酸

    0.946 3

    1.690 6

    0.972 6

    1.208 7

    FeCl3

    0.972 5

    1.501 7

    0.982 4

    1.200 9

    Cd

    EDTA

    0.912 2

    0.181 7

    0.912 4

    0.513 3

    柠檬酸

    0.996 0

    0.950 0

    0.997 3

    2.200 6

    FeCl3

    0.876 3

    0.659 5

    0.883 7

    1.808 5

  • Table 3   Soil physicochemical properties after washing treatment

    土壤样品

    pH

    TOC/(g·kg−1

    粒径组成/%

    黏粒

    粉粒

    砂粒

    未淋洗土壤

    6.44

    19.33

    11.60

    52.49

    35.91

    EDTA修复后

    7.35

    25.29

    10.88

    55.1

    34.02

    柠檬酸修复后

    4.80

    22.06

    10.23

    52.91

    36.86

    FeCl3修复后

    2.11

    17.63

    9.85

    50.31

    39.84

qqqq

Contact and support