ZHU Hai-jun, LIAO Jia-li, ZHANG Dong, KANG Hou-jun, LIU Qi-feng, YANG Yuan-you, LIU Ning. Adsorption of U(Ⅵ) by Humic Acid Extracted From Soil[J]. Atomic Energy Science and Technology, 2007, 41(6): 683-688. DOI: 10.7538/yzk.2007.41.06.0683
Citation: ZHU Hai-jun, LIAO Jia-li, ZHANG Dong, KANG Hou-jun, LIU Qi-feng, YANG Yuan-you, LIU Ning. Adsorption of U(Ⅵ) by Humic Acid Extracted From Soil[J]. Atomic Energy Science and Technology, 2007, 41(6): 683-688. DOI: 10.7538/yzk.2007.41.06.0683

Adsorption of U(Ⅵ) by Humic Acid Extracted From Soil

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  • Received Date: July 10, 2006
  • Revised Date: November 30, 2006
  • Humic acid (HA) was extracted from the soil by using the procedure recommeded by International Humic Substance Society (IHSS) with minor modifications. It was characterized by the element analysis and the IR spectra. Then the adsorption behaviors of U(Ⅵ) on the extracted HA were investigated by the static experimental method. The results show that more than 80% of the total U(Ⅵ) can be adsorbed by 5 mg humic acid at pH=3 from 20 mL aqueous solution of 0.84×10-4mol/L U(Ⅵ) and the adsorption is increased with increasing pH in the range of 1-3 and decreased with increasing pH in the range of 3-10. The relationship between the concentration of U(Ⅵ) in aqueous solution and the adsorbed U(Ⅵ) is in accord with the Langmuir equation in the U(Ⅵ) concenttation range from 10-6 to 10-4 mol/L. In the presence of Al3+, Ca2+, Nd3+, Eu3+, CO2-3, SO2-4, citric acid and EDTA, the adsorption of U(Ⅵ) on the humic acid is decreased relative to that in the absence of these ligands and bivalent and trivalent cations, while the effects of K+and NO-3 are insignificant. The effect of temperature in the range of 0-40 ℃ on the adsorption of U(Ⅵ) was investigated.
  • [1]
    李克斌. 土壤腐殖酸的提取及表征[J]. 陕西化工, 1998, 27(4): 11-13.
    LI Kebin. Extract ion and characterization of humic acid in soil[J]. Shanxi Chemical Industry, 1998, 27(4): 11-13(in Chinese).
    [2]
    杨敏, 王红斌, 宁平, 等. 云南沼泽土中提取腐植酸的研究[J]. 化学世界, 2002, 7: 351-353.
    YANG Min, WANG Hongbin, NING Ping, et al. Extracting of humic acid from swampy soil by dilute base[J]. Chemical World, 2002, 7: 351-353(in Chinese).
    [3]
    彭安, 王文华. 水体腐殖酸及其络合物[J]. 环境科学学报, 1981, 1(2): 126-138.
    PENG An, WANG Wenhua. Aquatic humic acid and its complexes[J]. Acta Scientiae Sircumstantiae, 1981, 1(2): 126-138(in Chinese).
    [4]
    MANTOURA R F C, DICKSON A, RILEY J P. The complexation of metals with humic materials in natural waters[J]. Estuar Coast Mar Sci, 1975, 6: 387-400.
    [5]
    吕福荣, 刘艳. 腐殖酸对钴、镉作用的研究[J]. 大连大学学报, 2002, 23(4): 63-67.
    LU Furong, LIU Yan. Study on sorption of Co2+, Cd2+ on humic acid[J]. J Dalian University, 2002, 23(4): 63-67(in Chinese).
    [6]
    SPOSITO G. Sorption of trace metals by humic materials in soils and natural waters[J]. CRC Crit Rev Environ Ctrl, 1986, 16:193-227.
    [7]
    杨殿忠, 于漫. 铀有机地球化学研究进展[J]. 地质与资源, 2001, 10(4): 262-266.
    YANG Dianzhong, YU Man. The uraniumorganic geochemistry development[J]. Geology and Resources, 2001, 10(4): 262-266(in Chinese).
    [8]
    DZOMBAK A D, FISH W, MOREL F M M. Metalhumate interactions: Discrete ligand and continuous distribution models[J]. Environ Sci Technol, 1986, 20(7): 669-675.
    [9]
    LIN C F, LIU S H, HAO O J. Effect of functional groups of humic substances on UF performance[J]. Wat Res, 2001, 35: 2 395-2 402.
    [10]
    王丹丽, 关子川, 王恩德. 腐殖质对重金属离子的吸附作用[J]. 黄金, 2003, 24(1): 47-49.
    WANG Danli, GUAN Zichuan, WANG Ende. Adsorption of heavy metal ions onto humus[J]. Gold, 2003, 24(1): 47-49(in Chinese).
    [11]
    ABATE G, MASINI J C. Influence of pH and ionic strength on removal processes of a sedimentary humic acid in a suspension of vermiculite[J]. Physicochem, 2003, 226: 25-34.
    [12]
    JOHN L J, BRUCE H. Uranium(Ⅵ) sorption to hematite in the presence of humic acid[J] . Geochimica et Cosmochimica Acta, 1999, 63(19/20): 2 891-2 901.
    [13]
    SCHMEIDEK, SACHS S, BUBNER M, et al. Interaction of uranium(Ⅵ) with various modified and unmodified natural and synthetic humic substances studied by EXAFS and FTIR spectroscopy[J]. Inorganica Chimica Acta, 2003, 351: 133-140.
    [14]
    JAMES D P, ALKA J, DAVID R T, et al. Uranium(Ⅵ) sorption behavior on silicate mineral mixtures[J]. Journal of Contaminant Hydrology, 2001, 47: 241-253.
    [15]
    安永锋, 李书绅, 李伟娟, 等. 中国黄土对241Am吸附特性的实验研究[J]. 辐射防护, 2003, 23:372-376.
    AN Yongfeng, LI Shushen, LI Weijuan, et al. Experimental study on adsorption characteristics of chinese loess for 241Am[J]. Radiation Protection, 2003, 23:372-376(in Chinese).
    [16]
    THURMAN E M, MALCOLM R L. Preparative isolation of aquatic humic substances[J]. Environ Sci Technol, 1981, 15: 463-466.
    [17]
    杨克莲, 陈甫华, 邵洪波. 海河河口水体表层底质中腐殖质的提取及性能表征[J]. 南开大学学报, 1994, 4: 26-30.
    YANG Kelian, CHEN Fuhua, SHAO Hongbo. Extraction and characterization of humic substances in the surface sediment from Haihe estuary[J]. Acta Scientiarum Naturalium Universitatis Nankaiensis, 1994, 4: 26-30(in Chinese).
    [18]
    何玉萼, 袁永明, 胡常伟. 物理化学:下册[M]. 四川: 四川大学出版社, 1987: 232-236.

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