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酸雨作用下含磷固化剂处理铅锌镉复合污染土的半动态浸出试验研究

伍浩良, 刘兆鹏, 杜延军, 薛强, 魏明俐, 李春萍

伍浩良, 刘兆鹏, 杜延军, 薛强, 魏明俐, 李春萍. 酸雨作用下含磷固化剂处理铅锌镉复合污染土的半动态浸出试验研究[J]. 岩土工程学报, 2017, 39(6): 1058-1064. DOI: 10.11779/CJGE201706011
引用本文: 伍浩良, 刘兆鹏, 杜延军, 薛强, 魏明俐, 李春萍. 酸雨作用下含磷固化剂处理铅锌镉复合污染土的半动态浸出试验研究[J]. 岩土工程学报, 2017, 39(6): 1058-1064. DOI: 10.11779/CJGE201706011
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WU Hao-liang, LIU Zhao-peng, DU Yan-jun, XUE Qiang, WEI Ming-li, LI Chun-ping. Effect of acid rain on leaching characteristics of lead, zinc and cadmium- contaminated soils stabilized by phosphate-based binder: semi-dynamic leaching tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1058-1064. DOI: 10.11779/CJGE201706011
Citation: WU Hao-liang, LIU Zhao-peng, DU Yan-jun, XUE Qiang, WEI Ming-li, LI Chun-ping. Effect of acid rain on leaching characteristics of lead, zinc and cadmium- contaminated soils stabilized by phosphate-based binder: semi-dynamic leaching tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1058-1064. DOI: 10.11779/CJGE201706011
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酸雨作用下含磷固化剂处理铅锌镉复合污染土的半动态浸出试验研究  English Version

  • 1. 东南大学江苏省城市地下工程与环境安全重点实验室,江苏 南京210096;
    2. 东南大学交通学院岩土工程研究所,江苏 南京 210096;
    3. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北 武汉 430071;
    4. 中国民航机场建设集团公司,北京 100101;
    5. 北京建筑材料科学研究总院固废资源化利用与节能建材国家重点实验室,北京 100041

基金项目: 国家自然科学基金重点项目（41330641）; 国家自然科学基金项目（51278100,41472258）; 国家高新技术研究发展计划（“863”计划）项目（2013AA06A206）; 江苏省自然科学杰出青年基金项目（BK2012022）
详细信息
    作者简介:

    伍浩良(1990- ),男,博士研究生,主要从事环境岩土工程研究。E-mail: wuhaoliang90@163.com。

    通讯作者:

    杜延军，E-mail：duyanjun@seu.edu.cn

  • 中图分类号: TU449

Effect of acid rain on leaching characteristics of lead, zinc and cadmium- contaminated soils stabilized by phosphate-based binder: semi-dynamic leaching tests

  • 1. Jiangsu Key Laboratory of Urban Underground Engineering & Environmental Safety, Southeast University, Nanjing 210096, China;
    2. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China;
    3. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;
    4. China Airport Construction Group Corporation of CAAC, Beijing 100101, China;
    5. Beijing Research Academy of Building Materials Science and State Key Lab of Solid Waste Resources Utilization and Energy-Saving Building Materials, Beijing 100041, China

摘要

    摘要
  • 摘要: 酸雨pH可显著影响固化重金属污染土的浸出量。定量评价固化污染土在暴露条件下（例如酸雨）对周边水土体环境的影响,需要明确固化污染土的有效扩散系数和阻滞因子这两个关键参数。现有研究多集中在固化污染土的浸出特性和表观扩散系数,有关有效扩散系数和阻滞因子的研究很少。本次研究旨在研究改进的KMP固化剂固化重金属Pb、Zn、Cd复合污染土在酸雨作用下的有效扩散系数和阻滞因子。解吸附试验表明,随着污染土中重金属Pb、Zn、Cd浓度增加,固化污染土的解吸附量增大,且解吸附曲线满足Freundlich平衡吸附/解吸附方程。半动态浸出试验结果表明,污染土中重金属Pb、Zn、Cd浸出机制主要由扩散控制,且拟合曲线斜率分别为0.60,0.56和0.61,表观扩散系数Dobs为1.05×10-16,7.84×10-13和2.11×10-12 m2/s。结合解吸附试验和半动态浸出试验结果可知,Pb、Zn、Cd的阻滞因子Rd分别为17165.6,254.6和109.3,有效扩散系数De分别为1.82×10-12,1.96×10-10,2.34×10-10 m2/s。与其他学者结果相比,固化污染土中Pb的有效扩散系数低于其他学者的两个数量级,而Zn和Cd的求算结果与其他学者一致。
    Abstract: The previous studies show that acid rain pH significantly affects the leachability of stabilized heavy metals-contaminated soils. The parameters of diffusion coefficient (De) and retardation factor (Rd) are critical for quantitative assessment of impact of stabilized contaminated soils on the surrounding environment. However, the effective diffusion coefficient and the retardation factor of the stabilized soils have not been well addressed in the previous studies. This study investigates the diffusion of heavy metals leached from a new binder, namely modified KMP, stabilized Pb, Zn and Cd-contaminated soils. A series of tests including desorption tests and semi-dynamic leaching tests are conducted to determine the obvious diffusion coefficient (Dobs) and the retardation factor (Rd), respectively. The desorption test results show that the leached concentrations of Pb, Zn and Cd increase with the increase in their initial concentrations. It is also found that the desorption curves can be fitted using the Freundlich desorption/adsorption model. The semi-dynamic leaching test results show that the leaching of heavy metals released from the stabilized soils is controlled by diffusion process. The obvious diffusion coefficients (Dobs) of Pb, Zn and Cd are estimated as 1.05×10-16, 7.84×10-13 and 2.11×10-12 m2/s. Combined with the desorption and semi-dynamic leaching tests, the retardant factors of Pb, Zn and Cd are estimated as 17155.6, 251.6, and 109.7. The effective diffusion coefficients are therefore determined as 1.80×10-12, 1.97×10-10 and 2.32×10-10 m2/s for Pb, Zn and Cd, respectively. Compared with those of the previous studies, the effective diffusion coefficients of Pb presented in this study is 2 orders of magnitude lower, whereas the effective diffusion coefficients of Zn and Cd are consistent with those reported in the previous studies.
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  • [1] 张孝飞, 林玉锁, 俞 飞, 等. 城市典型工业区土壤重金属污染状况研究[J]. 长江流域资源与环境, 2005, 14(4): 512-515. (ZHANG Xiao-fei, LIN Yu-suo, YU Fei, et al. Pollution of heavy metals in urban soils of typical industrial and surrounding residential area in Nanjing city[J]. Resources & Environment in the Yangtze Basin, 2005, 14(4): 512-515. (in Chinese))
    [2] 卢 瑛, 龚子同, 张甘霖, 等. 南京城市土壤重金属含量及其影响因素[J]. 应用生态学报, 2004, 15(1): 123-126. (LU Ying, GONG Zi-tong, ZHANG Gan-lin, et al. Heavy metal concentration in Nanjing urban soils and their affecting factors[J]. Chinese Journal of Applied Ecology, 2004, 15(1): 123-126. (in Chinese))
    [3] 李 胤, 毛义伟, 周立晨, 等. 上海世博会规划区域城市土壤重金属调查及评价研究[J]. 土壤通报, 2009(4): 926-931. (LI Yin, MAO Yi-wei, ZHOU Li-chen, et al. An investigation and assessment on the soil heavy metal in Shanghai EXPO Planning Area[J]. Chinese Journal of Soil Science, 2009(4): 926-931. (in Chinese))
    [4] 李小虎, 汤中立, 初凤友. 大型金属矿山不同环境介质中重金属元素化学形态分布特征——以甘肃金昌市和白银市为例[J]. 地质科技情报, 2008, 27(4): 95-100. (LI Xiao-hu, TANG Zhong-li, CHU Feng-you. Chemical forms of heavy metals in soil and sediments around Jinchuan and Baiyin Mines, Gansu Province[J]. Geological Science & Technology Information, 2008, 27(4): 95-100. (in Chinese))
    [5] EPA U S. Treatment technologies for site cleanup: Annual status report[R]. 11th ed. Washington D C: Office of Solid Waste and Emergency Response, 2004.
    [6] 李 磊, 朱 伟, 吉顺健, 等. 微生物对固化/稳定化污泥长期强度的影响研究[J]. 岩土工程学报, 2008, 29(12): 1778-1782. (LI Lei, ZHU Wei, JI Shun-Ji, et al. Influence of micro-organism on long-term strength of solidified/ stabilized sludge[J]. Chinese Journal of Geotechnical Engineering, 2008, 29(12): 1778-1782. (in Chinese))
    [7] PEREIRA C F, LUNA Y, QUEROL X, et al. Waste stabilization/solidification of an electric arc furnace dust using fly ash-based geo-polymers[J]. Fuel, 2009, 88(7): 1185-1193.
    [8] 刘兆鹏, 杜延军, 蒋宁俊, 等. 基于半动态淋滤试验的水泥固化铅污染黏土溶出特性研究[J]. 岩土工程学报, 2013, 35(12): 2212-2218. (LIU Zhao-peng, DU Yan-jun, JIANG Ning-jun, et al. Leaching properties of cement- solidified lead-contaminated clay via semi-dynamic leaching tests[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(12): 2212-2218. (in Chinese))
    [9] 钟汉珍, 袁 泉. 长江流域酸雨危害及对策分析[J]. 华中农业大学学报(社会科学版), 2002(3): 18-21. (ZHONG Han-zhen, YUAN Quan. The harmfulness of acid rain in yangtze river valley and its counter measures[J]. Journal of Huazhong Agricultural University (Social Science Edation), 2002(3): 18-21. (in Chinese))
    [10] CAO X, 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.
    [11] DU Y J, WEI M L, REDDY K R, et al. New phosphate-based binder for stabilization of soils contaminated with heavy metals: leaching, strength and microstructure characterization[J]. Journal of Environmental Management, 2014, 146: 179-188.
    [12] MOON D H, DERMATAS D. An Evaluation of lead leachability from stabilized/solidified soils under modified semi-dynamic leaching conditions[J]. Engineering Geology, 2006, 85: 67-74.
    [13] MALVIYA R, CHAUDHARY R. Leaching behavior and immobilization of heavy metals in solidified/stabilized products[J]. Journal of Hazardous Materials, 2006, 137(1): 207-217.
    [14] CUISINIER O, BORGNE T L, DENEELE D, et al. Quantification of the effects of nitrates, phosphates and chlorides on soil stabilization with lime and cement[J]. Engineering Geology, 2011, 117(3/4): 229-235.
    [15] 王洪涛. 多孔介质污染物迁移动力学[M]. 北京: 高等教育出版社, 2008. (WANG Hong-tao. Dynamic of fluid flow and contaminant transport in porous media[M]. Beijing: Higher Education Press, 2008. (in Chinese))
    [16] USEPA. Method 1315. Mass transfer rates of constituents in monolithic or compacted granular materials using a semi-dynamic tank leaching procedure[S]. Washington DC, 2013.
    [17] ROWE R K, QUIGLEY R M, BRACHMAN R W I, et al. Barrier systems for waste disposal facilities[M]. London: Spon Press, 2004.
    [18] Japanese Geotechnical Society. Test method for water-solid component of soils[S]. Tokyo, 2000.
    [19] 李振泽, 陈云敏, 唐晓武, 等. 污染物在黏土中的非线性扩散特性[J]. 浙江大学学报(工学版), 2010, 44(12): 2337-2341. (LI Zhen-ze, CHEN Yun-min, TANG Xiao-wu, et al. Nonlinear diffusion behavior of pollutant in clay column[J]. Journal of Zhejiang University (Engineering Science), 2010, 44(12): 2337-2341. (in Chinese))
    [20] 钟孝乐. 重金属在高岭土中对流-弥散参数的测试研究[D]. 杭州: 浙江大学, 2013. (ZHONG Xiao-le. A study of testing advection and dispersion parameter of heavy metals in kaoli[D]. Hangzhou: Zhejiang University, 2013. (in Chinese))
    [21] DU Y J, LIU S Y, HAYASH S. Geoenvironmental assessment of Ariake clay for its potential use as a landfill barrier material[J]. Chinese Journal of Geotechnical Engineering. 2005, 27(10): 1215-1221.
    [22] SHACKELFORD C D, DANIEL D E. Diffusion in saturated soil: II results for compacted clay[J]. Journal of Geotechnical Engineering, 1991, 117(3): 485-506.
    [23] SHACKELFORD C D, COTTEN T E, ROHAL K M, et al. Acid buffering a high pH soil for zinc diffusion[J]. Journal of Geotechnical Engineering. 1997, 123(3): 260-271.
    [24] CAMUR M Z, YAZICIGIL H. Laboratory determination of multicomponent effective diffusion coefficients for heavy metals in a compacted clay[J]. Turkish Journal of Earth Sciences, 2005, 14(1): 91-103.
    [25] GOREHAM V, LAKE C, YUET P. Characterizing porosity and diffusive properties of monolithic cement-based solidified/stabilized materials[J]. Geotechnical Testing Journal, 2012, 35(35): 1-10.
    [26] TITS J, JAKOB A, WIELAND E, et al. Diffusion of tritiated water and 22Na + through non-degraded hardened cement pastes[J]. Journal of Contaminant Hydrology, 2003, 61(1/2/3/4): 45-62.
    [27] SAXENA S, DSOUZA S F. Heavy metal pollution abatement using rock phosphate mineral[J]. Environment International. 2006, 32(2): 199-202.
    [28] RAICEVIC S, KALUDJEROVIC T, ZOUBOULIS A I. In situ stabilization of toxic metals in polluted soils using phosphates: theoretical prediction and experimental verification[J]. Journal of Hazardous Materials. 2005, B117(1): 41-53.
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  • 收稿日期:  2016-01-19
  • 发布日期:  2017-06-24

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