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CBs在沉积物上的吸附-解吸行为 被引量:3

Sorption-desorption behavior of chlorobenzenes in sediments
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摘要 采用批量平衡实验,研究了氯苯、1,4-二氯苯、1,2,4-三氯苯和1,2,4,5-四氯苯4种氯苯类化合物(CBs)在含不同特性的自然有机质(NOM)的5种沉积物上的吸附-解吸行为。研究结果表明,所有吸附等温线均表现出明显的非线性和吸附-解吸滞后现象。1,2,4-三氯苯在不同沉积物上吸附等温线的非线性程度以及在沉积物上解吸滞后效应都随着沉积物NOM聚合度的增加而增大。另外,CBs溶质分子本身的性质也影响着其在沉积物上的吸附-解吸性能。4种CBs在同一种沉积物上吸附等温线的非线性程度及其解吸滞后系数按氯苯、1,4-二氯苯、1,2,4-三氯苯、1,2,4,5-四氯苯的顺序依次减弱,说明CBs的分子尺寸越大,其在沉积物上的吸附非线性程度和解吸滞后现象也越弱。 Batch technique experiments were conducted to study the sorption and desorption behavior of chlorobenzene, 1, 4-dichlorobenzene, 1, 2, 4-trichlorobenzene and 1, 2, 4, 5-tetrachlorobenzene on 5 sediments with different natural organic matter (NOM) characteristics. The results showed that the sorption-desorption isotherms of 4 CBs from water on several sediments with various NOM properties exhibited distinct nonlinearity and sorptiondesorption hysteresis. The sorption nonlinearity and hysteresis index of 1, 2, 4-trichlorobenzene increased with the increase of the degree of sediment NOM condensation. In addition, the CBs properties themselves influenced the sorption-desorption behavior. The smaller the CBs molecule is, the more significant the sorption nonlinearity and sorption-desorption hysteresis are.
出处 《地球化学》 CAS CSCD 北大核心 2009年第2期153-158,共6页 Geochimica
基金 国家自然科学基金(40373042)
关键词 氯苯类化合物 沉积物 吸附 解吸 chlorobenzenes sediments sorption desorption
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参考文献31

  • 1Pusino A, Fiori M G, Braschi I, Gessa C. Adsorption and desorption of triasulfuron by soil[J]. J Agr Food Chem, 2003, 51(18): 5350-5354.
  • 2Abu A, Smith S. Assessing sequestration of selected polycyclic aromatic hydrocarbons by use of adsorption modeling and temperature-programmed desorption[J] . Environ Sci Technol, 2005, 39(19): 7585-7591.
  • 3Nam K, Chung N, Alexander M. Relationship between organic matter content of soil and the sequestration of phenanthrene[J]. Environ Sci Technol, 1998, 32(23): 3785 -3788.
  • 4杨琛,Huang Weilin,傅家谟,盛国英.煤中干酪根的成熟度与菲的吸附行为间的关系[J].地球化学,2004,33(5):528-534. 被引量:9
  • 5Johnson M D, Keinath Ⅱ T M, Weber Jr W J. A distributed reactivity model for sorption by soils and sediments. 14. Characterization and modeling of phenanthrene desorption rates[J]. Environ Sci Technol, 2001, 35(8): 1688 - 1695.
  • 6Huang W L, Young T M, Schlautman M A, Yu H, Weber Jr W J. A distributed reactivity model for serption by soils and sediments. 9. General isotherm nonlinearity and applicability of the dual reactive domain model[J]. Environ Sci Technol, 1997, 31(6): 1703 - 1710.
  • 7Weber Jr W J, Huang W L. A distributed reactivity model for serption by soils and sediments. 4. Itraparticle heterogeneity and phase-distribution relationships under nonequilibrium conditions [J]. Environ Sci Technol, 1996, 30(3): 881-888.
  • 8Selig H, Keinath Ⅱ T M, Weber Jr W J. sorption and manganese-induced oxidative coupling of hydroxylated aromatic compounds by natural geosorbents[J] . Environ Sci Technol, 2003, 7(18): 4122-4127.
  • 9Weber Jr W J, Huang Q G. Inclusion of persistent organic pollutants in humiflcation processes: Drect chemical incorporation of phenanthrene via oxidative coupling [J]. Environ Sci Technol, 2003, 7(18): 4221-4227.
  • 10Tang J X, Weber Jr W J. Development of engineerod natural organic sorbents for environmental applications. 2. Srption characteristics and capacities with respect to phenanthrene[J]. Environ Sci Technol, 2006, 40(5): 1657 - 1663.

二级参考文献39

  • 1施梅儿 朱秀月 等.水中痕量氯苯类化合物的气相色谱分析[J].上海环境科学,1988,7(1):21-21.
  • 2傅家谟 刘德汉 盛国英 等.煤成烃地球化学[M].北京:科学出版社,1992.256-257.
  • 3Meharg A A, Wright J, Osborn D. Chlorobenzenes in rivers draining industrial catchments[J]. Sci. Total Environ., 2000, 251/252: 243~253.
  • 4Lee C L, Song H J, Fang M D. Concentrations of chlorobenzenes, hexachlorobutadiene and heavy metals in surface sediments of Kaohsiuing coast, Taiwan[J]. Chemosphere, 2000, 41: 889~899.
  • 5Oliver B G, Nicol K D. Chlorobenzenes in Sediments,Water, and Selected Fish from Lakes Superior, Huron, Erie, and Ontario[J]. Environ. Sci. Technol., 1982, 16: 532~536.
  • 6Muir D, Savinova T, Savinov V, Alexeeva L, Potelov V, Svetochev V. Bioaccumulation of PCBs and chlorinated pesticides in seals, fishes and invertebrates from the White Sea, Russia[J]. Sci. Total Environ., 2003, 306: 111~131.
  • 7US EPA Test Method. Chlorinated Hydrocarbons Method, 612.
  • 8Wang Y, Lee H K. Determination of chlorobenzenes in water by solid-phase extraction and gas chromatography-mass spectrometry[J]. Journal of Chromatography A, 1998, 803: 219~225.
  • 9Test Methods for Evaluating Solid Waste, Method 3545. USEPA SW-846, 3rd ed., Update III; U.S. GPO: Washington, DC: July, 1995.
  • 10Masunaga S, Urushigawa Y, Yonezawa Y. The behavior of chlorobenzenes in Ise Bay estimated from their concentrations in various environmental media[J]. Wat. Res., 1991,25(3): 289~297.

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