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基于粒径分布的不同异位修复工艺除Cr特性

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朱文会, 王夏晖, 何军, 李志涛. 基于粒径分布的不同异位修复工艺除Cr特性[J]. 环境工程学报, 2018, 12(6): 1783-1790. doi: 10.12030/j.cjee.201712091
引用本文: 朱文会, 王夏晖, 何军, 李志涛. 基于粒径分布的不同异位修复工艺除Cr特性[J]. 环境工程学报, 2018, 12(6): 1783-1790. doi: 10.12030/j.cjee.201712091
shu
ZHU Wenhui, WANG Xiahui, HE Jun, LI Zhitao. Characteristics of chromium removing using different ex-situ remediations based on particle size distribution[J]. Chinese Journal of Environmental Engineering, 2018, 12(6): 1783-1790. doi: 10.12030/j.cjee.201712091
Citation: ZHU Wenhui, WANG Xiahui, HE Jun, LI Zhitao. Characteristics of chromium removing using different ex-situ remediations based on particle size distribution[J]. Chinese Journal of Environmental Engineering, 2018, 12(6): 1783-1790. doi: 10.12030/j.cjee.201712091
shu

基于粒径分布的不同异位修复工艺除Cr特性

  • 1.

    环境保护部环境规划院，北京 100012

  • 基金项目:

    国家高技术研究发展计划(863)项目(2009AA063101-2)

Characteristics of chromium removing using different ex-situ remediations based on particle size distribution

  • 1.

    Chinese Academy for Environmental Planning, Beijing 100012, China

  • Fund Project:

  • 摘要: 以我国某铬盐厂的铬污染土壤为研究对象，采用改进的BCR顺序提取法研究了粒径对不同修复工艺（异位淋洗、异位稳定化、湿法解毒）去除土壤中各形态Cr的影响。实验结果表明：粒径是影响铬渣污染土壤总铬和Cr(VI)去除的关键影响因素之一，粒径越细越有利于3种异位修复工艺对土壤中Cr(VI)的去除或还原，粒径越细越有利于异位淋洗工艺对总铬的消减。粒径对水溶态Cr、酸溶态Cr的去除影响显著，粒径越细，水溶态Cr、酸溶态Cr的去除率越高，水溶态Cr和酸溶态Cr的分离或去除是不同异位修复工艺实现铬渣污染土壤中Cr(VI)高效去除的有效手段；粒径对可还原态Cr的去除影响不显著，pH是影响可还原态Cr去除的主要影响因素；粒径对可氧化态Cr含量提升显著，尤其是对异位稳定化和湿法解毒工艺，粒径越细，可氧化态Cr增大倍数越高；粒径对残渣态Cr的去除影响不显著。
    Abstract: This paper takes the chromium contaminated soil from one of chromate plants in china as the object of study. Different chromium forms removal efficiencies were investigated to find the optical technology and influence factors by using the modified BCR method. Experimental results showed that particle size was one of the key factors affecting the removal of total Cr and Cr(VI) . The Cr(VI) removal rate or reduction efficiency was increased with decreasing particle size by three kinds of ex-situ remediation technologies. For soil washing, the removal rate of total Cr was also increased with decreasing particle size. Particle size was one of the key factors affecting the removal of soluble Cr and acid soluble Cr. The removal rates of soluble Cr and acid soluble Cr increased with decreasing particle size. The separation and removal of soluble Cr and acid soluble Cr is an effective way to remove Cr(VI) from chromium contaminated soil by different ex-situ remediation technologies. The effect of particle size on the removal of reducible Cr was not significant, and pH was the main influencing factor on the removal of reducible Cr. The effect of particle size on oxidizable Cr was significant. With the decrease of particle size, the Oxidizable Cr increased significantly, especially for ex-situ stabilization technology and wet-process detoxication technology. The smaller the particle size is, the higher the increase of oxidized Cr is. The effect of particle size on the removal of residual Cr was not significant. The residual Cr is difficult to release in the natural environment, and generally does not cause environmental risks.
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  • [1] 纪柱. 中国铬盐近五十年发展概况[J]. 无机盐工业,2010,42(12):1-6 10.3969/j.issn.1006-4990.2010.12.001
    [2] 刘玉强, 李丽, 王琪, 等. 典型铬渣污染场地的污染状况与综合整治对策[J]. 环境科学研究,2009,22(2):249-253
    [3] 王兴润, 张艳霞, 王琪, 等. 铬污染建筑废物不同清洗剂的作用效果比较[J]. 化工学报,2012,63(10):3255-3261
    [4] 朱文会, 王兴润, 董良飞, 等. 海藻酸钠包覆型Fe-Cu双金属PRB填料的除Cr(Ⅵ)特性[J]. 化工学报,2013,64(9):3373-3380
    [5] 罗建峰, 曲东. 青海海北化工厂铬渣堆积场土壤铬污染状况研究[J]. 西北农业学报,2006,15(6):244-247
    [6] 曹泉, 王兴润. 铬渣污染场地污染状况研究与修复技术分析[J]. 环境工程学报,2009,3(8):1493-1497
    [7] 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
    [8] SON A J, SHIN K H, LEE J U, et al.Chemical and eco-toxicity assessment of PAH-contaminated soils remediated by enhanced soil flushing[J].Environmental Engineering Science, 2003,20(3):197-206. 10.1089/109287503321671401
    [9] JUHASZ A L, SMITH E, SMITH J, et al.In situ remediation of DDT-contaminated soil using a two-phase cosolvent flushing-fungal biosorption process[J].Water, Air & soil Pollution,2003,147(1):263-274. 10.1023/A:1024593815925
    [10] ALTER S R, BRUSSEAU M L, PIATT J J, et al.Use of tracer tests to evaluate the impact of enhanced-solubilization flushing on in-situ biodegradation[J].Journal of Contaminant Hydrology,2003,64(3/4):191-202. 10.1016/S0169-7722(02)00203-6
    [11] JEYASINGH J, PHILIP L.Bioremediation of chromium contaminated soil: Optimization of operating parameters under laboratory conditions[J].Journal of Hazardous Materials,2005,118(1/2/3):113-120. 10.1016/j.jhazmat.2004.10.003
    [12] DESJARDIN V, BAYARD R, HUCK N, et al.Effect of microbial activity on the mobility of chromium in soils[J].Waste Management,2002,22(2):195-200. 10.1016/S0956-053X(01)00069-1
    [13] LI G, GUO S H, LI S C, et al.Comparison of approaching and fixed anodes for avoiding the ‘focusing’ effect during electrokinetic remediation of chromium-contaminated soil[J].Chemical Engineering Journal,2012,203(1):231-238. 10.1016/j.cej.2012.07.008
    [14] 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. 10.1016/S0269-7491(00)00176-7
    [15] PICHTEL J, PICHTEL T M.Comparison of solvents for ex-situ removal of chromium and lead from contaminated soil[J].Environmental Engineering Science,1997,14(2):97-104. 10.1089/ees.1997.14.97
    [16] 王兴润, 刘雪, 颜湘华, 等. 铬渣污染土壤清洗剂筛选研究[J]. 环境科学研究,2010,23(11):1405-1409
    [17] PONDER S M, DARAB J G, MALLOUK T E, et al.Remediation of Cr(Ⅵ) and Pb(Ⅱ) aqueous solutions using supported nanoscale zero-valent iron[J].Environment Science &Technology,2000,34(12):2564-2569. 10.1021/es9911420
    [18] 朱文会, 董良飞, 王兴润, 等.Cr(Ⅵ)污染地下水修复的PRB填料实验研究[J]. 环境科学,2013,34(7):215-221
    [19] 胡月, 赵勇胜, 沈勇, 等. 不同因素对多硫化钙处理地下水中Cr(VI)效果影响[J]. 生态环境学报,2015,24(2):294-299
    [20] CHRYSOCHOOU M, FERREIRA D R, JOHNSTON C P.Calcium polysulfide treatment of Cr(VI)-contaminated soil[J].Journal of Hazardous Materials,2010,179(1/2/3):650-657. 10.1016/j.jhazmat.2010.03.052
    [21] DERMATAS D, CHRYSOCHOOU M, MOON D H, et al.Ettringite-induced heave in chromite ore processing residue(COPR) upon ferrous sulfate treatment[J].Environmental Science & Technology,2006,40(18):5786-5792. 10.1021/es0604461
    [22] 王兴润, 李丽, 刘雪, 等. 铬渣治理技术的应用进展及特点分析[J]. 中国给水排水,2009,25(4):10-14
    [23] 王璇, 熊惠磊, 马俊, 等. 废弃铬盐厂土壤中铬的赋存特征及异位淋洗修复可行性研究[J]. 环境工程学报,2016,10(11):6746-6752 10.12030/j.cjee.201511159
    [24] 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,2010,31(4):1036-1040
    [25] 刘雪, 王兴润, 张增强.pH和有机质对铬渣污染土壤中Cr赋存形态的影响[J]. 环境工程学报,2010,4(6):1436-1440
    [26] 中华人民共和国环境保护部. 固体废物 六价铬的测定 碱消解/火焰原子吸收分光光度法：HJ 687-2014[S]. 北京：中国环境科学出版社，2014
    [27] 中华人民共和国环境保护部. 土壤 总铬的测定 火焰原子吸收分光光度法：HJ 491-2009[S]. 北京：中国环境科学出版社，2009
    [28] QUEVAUVILLER P, RAURET G, MUNTAU H.Evaluation of a sequential extraction procedure for the determination of extractable trace metal contents in sediments[J].Journal of Analytical Chemistry,1994,349((12):808-814. 10.1007/BF00323110
    [29] 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. 土壤和沉积物13个微量元素形态顺序提取程序: GB/T 25282-2010[S]. 北京：中国标准出版社,2011
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  • 刊出日期:  2018-06-18

基于粒径分布的不同异位修复工艺除Cr特性

  • 1. 环境保护部环境规划院，北京 100012
基金项目:

国家高技术研究发展计划(863)项目(2009AA063101-2)

摘要: 以我国某铬盐厂的铬污染土壤为研究对象，采用改进的BCR顺序提取法研究了粒径对不同修复工艺（异位淋洗、异位稳定化、湿法解毒）去除土壤中各形态Cr的影响。实验结果表明：粒径是影响铬渣污染土壤总铬和Cr(VI)去除的关键影响因素之一，粒径越细越有利于3种异位修复工艺对土壤中Cr(VI)的去除或还原，粒径越细越有利于异位淋洗工艺对总铬的消减。粒径对水溶态Cr、酸溶态Cr的去除影响显著，粒径越细，水溶态Cr、酸溶态Cr的去除率越高，水溶态Cr和酸溶态Cr的分离或去除是不同异位修复工艺实现铬渣污染土壤中Cr(VI)高效去除的有效手段；粒径对可还原态Cr的去除影响不显著，pH是影响可还原态Cr去除的主要影响因素；粒径对可氧化态Cr含量提升显著，尤其是对异位稳定化和湿法解毒工艺，粒径越细，可氧化态Cr增大倍数越高；粒径对残渣态Cr的去除影响不显著。

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