高级搜索

化学淋洗与生物质炭稳定化联合修复镉污染土壤

,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

李明, 程寒飞, 安忠义, 王浩, 项萌, 汪宜敏. 化学淋洗与生物质炭稳定化联合修复镉污染土壤[J]. 环境工程学报, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
引用本文: 李明, 程寒飞, 安忠义, 王浩, 项萌, 汪宜敏. 化学淋洗与生物质炭稳定化联合修复镉污染土壤[J]. 环境工程学报, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
shu
LI Ming, CHENG Hanfei, AN Zhongyi, WANG Hao, XIANG Meng, WANG Yimin. Chemical leaching combined with biochar stabilization remediate cadmium contaminated soil[J]. Chinese Journal of Environmental Engineering, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
Citation: LI Ming, CHENG Hanfei, AN Zhongyi, WANG Hao, XIANG Meng, WANG Yimin. Chemical leaching combined with biochar stabilization remediate cadmium contaminated soil[J]. Chinese Journal of Environmental Engineering, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
shu

化学淋洗与生物质炭稳定化联合修复镉污染土壤

  • 1.

    中冶华天南京工程技术有限公司，南京 210019

  • 2.

    河海大学环境学院，南京 210098

  • 基金项目:

    江苏省自然科学基金资助项目(BK20160155)

Chemical leaching combined with biochar stabilization remediate cadmium contaminated soil

  • 1.

    MCC Huatian Nanjing Engineering & Technology Corporation, Nanjing 210019, China

  • 2.

    College of Environment, Hohai University, Nanjing 210098, China

  • Fund Project:

  • 摘要: 为探讨土壤淋洗与生物质炭稳定化联合修复技术对镉（Cd）污染黄棕壤修复效果的影响，研究通过振荡淋洗实验、BCR 连续化学提取法和CaCl2 一次提取法，筛选确定污染土壤的最佳淋洗方案，并比较了淋洗修复、淋洗 + 稳定化修复技术对污染土壤中Cd生物有效性的影响。结果表明：3种淋洗剂的淋洗效率强弱顺序为EDTA-2Na>HCl> 柠檬酸，最佳淋洗条件为0.12 mol·L-1 EDTA-2Na在固-液比1:4条件下振荡淋洗3h，Cd的洗脱率为81.3%；淋洗后土壤中Cd的有效态（F1+F2）百分比减少了51.0%，显著降低了污染土壤的重金属总量及其环境风险；相比于单一淋洗修复技术，EDTA-2Na在添加体积（V添加）为最佳淋洗体积（V最优）的80%时，淋洗后再加入3%玉米秸秆炭稳定化15 d的联合修复技术能够将土壤中有效态Cd含量（CaCl2-Cd）从8.13 mg·kg-1降低到0.42 mg·kg-1。因此，淋洗修复后施加玉米秸秆炭的联合修复技术，能够有效降低重金属污染土壤的生态环境风险，提高土壤环境质量。
    Abstract: In order to identify the influence of soil leaching method combined with the biochar stabilization on cadmium (Cd) contaminated yellow-brown soil remediation, the soil leaching experiments, the method of BCR sequential chemical extraction and the one-step extraction by CaCl2 were performed to select out the best solution for soil leaching. After that, the efficiency of chemical washing on soil Cd bioavailability was compared with the combined technique of soil leaching and the biochar stabilization. Results showed that the washing efficiency of three eluent agents is listed in turn as EDTA-2Na>HCl>citric acid. The best leaching method is under the condition of 0.12 mol·L-1 EDTA-2Na, the soil-liquid ratio of 1 : 4, and 3 h of vibration leaching. The Cd extraction ration is nearly 81.3%. After washing, the percentage of available Cd in soil reduced by 51.0%. 1Thus the leaching method significantly decreased the soil total heavy metal contents and their environmental risk in soil. Compared with the leaching remediation method solely, we used the method of EDTA-2Na leaching (Vaddition/Voptimal = 80%) combined with 3% corn-straw biochar (15 d stabilization) for soil Cd remediation. We reduced the soil available Cd contents （CaCl2-Cd） from 8.13 mg·kg-1to 0.42 mg·kg-1. In conclusion, the combination of soil leaching method with biochar stabilization is effective in reducing the ecological environment risk of heavy metal contaminated soil, and is useful in improving the soil quality.
  • 加载中
  • [1] 陈怀满，陈能场，陈英旭. 土壤-植物系统中的重金属污染[M]. 北京：科学出版社,1996:10
    [2] 国土资源部，环境保护部. 全国土壤污染状况调查公报[R]. 北京: 环境保护部国土资源部,2014
    [3] PRASAD M.Cadmium toxicity and tolerance in vascular plants[J].Environmental and Experimental Botany,1995,35(4):525-545 10.1016/0098-8472(95)00024-0
    [4] CARRIER P, BARYLA A, HAVAUX M.Cadmium distribution and microlocalization in oilseed rape (Brassica napus) after long-term growth on cadmium-contaminated soil[J].Planta,2003,216(6):939-950 10.1007/s00425-002-0947-6
    [5] 丁爱芳，潘根兴. 南京城郊零散菜地土壤与蔬菜重金属含量及健康风险分析[J]. 生态环境,2003,12(4):409-411 10.3969/j.issn.1674-5906.2003.04.008
    [6] MARQUES A P G C, RANGEL A O S S, CASTRO P M L.Remediation of heavy metal contaminated soils: phytoremediation as a potentially promising clean-up technology[J].Critical Reviews in Environmental Science and Technology,2009,39(8):622-654 10.1080/10643380701798272
    [7] 陈梦舫. 我国工业污染场地土壤与地下水重金属修复技术综述[J]. 中国科学院院刊,2014,29(3):327-335
    [8] 孙涛，陆扣萍，王海龙. 不同淋洗剂和淋洗条件下重金属污染土壤淋洗修复研究进展[J]. 浙江农林大学学报,2015,32(1):140-149 10.11833/j.issn.2095-0756.2015.01.021
    [9] 马妍, 刘向辉, 徐东耀, 等. 重金属污染土壤化学淋洗技术的文献计量学分析[J]. 环境工程技术学报,2017,7(1):88-95 10.3969/j.issn.1674-991X.2017.01.013
    [10] YANG Z H, ZHANG S J, LIAO Y P, et al.Remediation of heavy metal contamination in calcareous soil by washing with regents: A column washing[J].Procedia Environmental Sciences,2012,16:778-785 10.1016/j.proenv.2012.10.106
    [11] JIN H P, CHOPPALA G K, BOLAN N S, et al.Biochar reduces the bioavailability and phytotoxicity of heavy metals[J].Plant & Soil,2011,348(1/2):439-451 10.1007/s11104-011-0948-y
    [12] UCHIMIYA M, CHANG S, KLASSON K T.Screening biochars for heavy metal retention in soil: Role of oxygen functional groups[J].Journal of Hazardous Materials,2011,190(1):432-441 10.1016/j.jhazmat.2011.03.063
    [13] KHAN F I, HUSAIN T, HEJAZI R.An overview and analysis of site remediation technologies[J].Journal of Environmental Management,2004,71(2):95-122 10.1016/j.jenvman.2004.02.003
    [14] 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,2000:146-213
    [15] 李明，李忠佩，刘明，等. 不同秸秆生物炭对红壤性水稻土养分及微生物群落结构的影响[J]. 中国农业科学,2015,48(7):1361-1369 10.3864/j.issn.0578-1752.2015.07.11
    [16] 刘晶晶，杨兴，陆扣萍，等. 生物质炭对土壤重金属形态转化及其有效性的影响[J]．环境科学学报,2015,35(11):3679-3687 10.13671/j.hjkxxb.2014.1044
    [17] JELUSIC M, LESTAN D.Effect of EDTA washing of metal polluted garden soils.Part I: Toxicity hazards and impact on soil properties[J].Science of the Total Environment,2014,475:132-141 10.1016/j.scitotenv.2013.11.049
    [18] HU P J, YANG B F, DONG C X, et al.Assessment of EDTA heap leaching of an agricultural soil highly contaminated with heavy metals[J].Chemosphere,2014,117:532-537 10.1016/j.chemosphere.2014.08.081
    [19] 费小通, 张春雷, 曹亚丽, 等.EDTA 在铅污染土壤治理中的优化处理方法[J]. 环境工程学报,2016,10(11):6775-6780 10.12030/j.cjee.201512178
    [20] 陈春乐，王果，王珺玮. 3种中性盐与HCl复合淋洗剂对Cd污染土壤淋洗效果研究[J].安全与环境学报,2014,14(5):205-210 10.13637/j.issn.1009-6094.2014.05.046
    [21] 黄国勇, 付庆灵, 朱俊, 等. 低分子有机酸对土壤中 Cu 化学形态的影响[J]. 环境科学,2014,35(8):3091-3095 10.13227/j.hjkx.2014.08.036
    [22] WANG X J, CHEN J, YAN X B, et al.Heavy metal chemical extraction from industrial and municipal mixed sludge by ultrasound-assisted citric acid[J].Journal of Industrial and Engineering Chemistry,2015,27:368-372 10.1016/j.jiec.2015.01.016
    [23] DA COSTA C G, GOVEIA D, ROM?O L P C, et al.Effect of the competition of Cu (II) and Ni (II) on the kinetic and thermodynamic stabilities of Cr (III)-organic ligand complexes using competitive ligand exchange (EDTA)[J].Journal of Environmental Management,2015,154:259-265 10.1016/j.jenvman.2015.02.038
    [24] 刘仕翔, 胡三荣, 罗泽娇.EDTA 和 CA 复配淋洗剂对重金属复合污染土壤的淋洗条件研究[J]. 安全与环境工程,2017,24(3):77-83 10.13578/j.cnki.issn.1671-1556.2017.03.014
    [25] 邱琼瑶, 周航, 邓贵友, 等. 污染土壤中重金属的超声波强化 EDTA 洗脱及形态变化[J]. 环境科学学报,2014,34(9):2392-2397 10.13671/j.hjkxxb.2014.0589
    [26] LIU J, DING Y L, MA L L, et al.Combination of biochar and immobilized bacteria in cypermethrin-contaminated soil remediation[J].International Biodeterioration & Biodegradation,2017,120:15-20 10.1016/j.ibiod.2017.01.039
    [27] XU G, WEI L L, SUN J N, et al.What is more important for enhancing nutrient bioavailability with biochar application into a sandy soil: Direct or indirect mechanism?[J].Ecological Engineering,2013,52:119-124 10.1016/j.ecoleng.2012.12.091
    [28] 佟雪娇，李九玉，姜军，等. 添加农作物秸秆炭对红壤吸附Cu(II)的影响[J]. 生态与农村环境学报,2011,27(5):37-41 10.3969/j.issn.1673-4831.2011.05.007
    [29] LU K P, YANG X, GIELEN G, et al.Effect of bamboo and rice straw biochars on the mobility and redistribution of heavy metals (Cd, Cu, Pb and Zn) in contaminated soil[J].Journal of Environmental Management,2017,186:285-292 10.1016/j.jenvman.2016.05.068
    [30] 左静，陈德，郭虎，等. 小麦秸秆生物质炭对旱地土壤铅镉有效性及小麦、玉米吸收的影响[J]. 农业环境科学学报,2017,36(6):1133-1140 10.11654/jaes.2016-1655
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  3131
  • HTML全文浏览数:  2621
  • PDF下载数:  642
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-03-22
李明, 程寒飞, 安忠义, 王浩, 项萌, 汪宜敏. 化学淋洗与生物质炭稳定化联合修复镉污染土壤[J]. 环境工程学报, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
引用本文: 李明, 程寒飞, 安忠义, 王浩, 项萌, 汪宜敏. 化学淋洗与生物质炭稳定化联合修复镉污染土壤[J]. 环境工程学报, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
shu
LI Ming, CHENG Hanfei, AN Zhongyi, WANG Hao, XIANG Meng, WANG Yimin. Chemical leaching combined with biochar stabilization remediate cadmium contaminated soil[J]. Chinese Journal of Environmental Engineering, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
Citation: LI Ming, CHENG Hanfei, AN Zhongyi, WANG Hao, XIANG Meng, WANG Yimin. Chemical leaching combined with biochar stabilization remediate cadmium contaminated soil[J]. Chinese Journal of Environmental Engineering, 2018, 12(3): 904-913. doi: 10.12030/j.cjee.201709098
shu

化学淋洗与生物质炭稳定化联合修复镉污染土壤

  • 1. 中冶华天南京工程技术有限公司，南京 210019
  • 2. 河海大学环境学院，南京 210098
基金项目:

江苏省自然科学基金资助项目(BK20160155)

摘要: 为探讨土壤淋洗与生物质炭稳定化联合修复技术对镉（Cd）污染黄棕壤修复效果的影响，研究通过振荡淋洗实验、BCR 连续化学提取法和CaCl2 一次提取法，筛选确定污染土壤的最佳淋洗方案，并比较了淋洗修复、淋洗 + 稳定化修复技术对污染土壤中Cd生物有效性的影响。结果表明：3种淋洗剂的淋洗效率强弱顺序为EDTA-2Na>HCl> 柠檬酸，最佳淋洗条件为0.12 mol·L-1 EDTA-2Na在固-液比1:4条件下振荡淋洗3h，Cd的洗脱率为81.3%；淋洗后土壤中Cd的有效态（F1+F2）百分比减少了51.0%，显著降低了污染土壤的重金属总量及其环境风险；相比于单一淋洗修复技术，EDTA-2Na在添加体积（V添加）为最佳淋洗体积（V最优）的80%时，淋洗后再加入3%玉米秸秆炭稳定化15 d的联合修复技术能够将土壤中有效态Cd含量（CaCl2-Cd）从8.13 mg·kg-1降低到0.42 mg·kg-1。因此，淋洗修复后施加玉米秸秆炭的联合修复技术，能够有效降低重金属污染土壤的生态环境风险，提高土壤环境质量。

English Abstract

参考文献 (30)

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