全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
环境化学  2015 

菲在不同地质吸附剂上吸附/解吸的研究

Keywords: ,吸附,解吸

Full-Text   Cite this paper   Add to My Lib

Abstract:

研究了菲在不同土壤和沉积物等天然地质吸附剂上的吸附/解吸行为.结果表明,菲在四种天然地质吸附剂上的吸附和解吸都能较快达到稳态.菲的吸附符合线性吸附等温线,说明菲的吸附是分配作用占主导,吸附系数Kd在24.1—187.5L·Kg-1之间.连续解吸实验表明,菲在天然地质吸附剂上的解吸存在不同程度的滞后现象,吸附剂的有机碳含量和菲的加入浓度是影响菲解吸率和滞后程度的重要因素.当菲加入浓度分别为1mg·l-1和2mg·l-1时,在有机碳含量为2.82%的榆林县土壤上的解吸滞后系数为1.61和0.67;而2mg·l-1的菲在有机碳含量为0.69%的泰达河岸土上的滞后系数为-0.06,吸附几乎完全可逆.

References

[1]  Sun H,Yah Q,Influence of Fenton Oxidation on Soil Organic Matter and Its Sorption and desorption of Prone. J. Hazard. Mater. ,2007,144: 164-170
[2]  khalil M F,Ghnsh U,kreitinger J P,Role of Weathered Coal tar PiTch in the Partitioning of Polycyclic Aromatic Hydrocarbons in Manufactured Gas Plant Site Sediments. Environ. Sci. technol. ,2006,40: 5681-5687
[3]  汪磊,吴颖虹,孙红文等,黄河兰州段悬浮颗粒物对菲的吸附行为研究. 环境科学与技Pollutants. Environ. Sci. technol. ,2000,34: 4259-4265
[4]  Gao Y,Xiong W,Ling W et al. ,ImpacT of Exotic and Inherent dissolved Organic Matter on Sorption of Phenanthrene by Soils. J. Hazard. Mater. ,2007,140(1): 138-144
[5]  Huang L,Boving T B,Xing B,Sorption of PAHs by Aspen Wood Fibers as Affected by Chemical Alterations. Environ. Sci. techol. ,2006,40(10): 3279-3284
[6]  Chiou C T,Mcgroddy S E,kile d E,Partition Characteristics of Polycyclic Aromatic Hydrocarbons on Soils and Sediments. Environ. Sci. technol. ,1998,32(2): 264-269
[7]  Adi Oren,Benny Chefetz,Sorption-desorption Behavior of Polycyclic Aromatic Hydrocarbons in UpsTream and downsTream River Sediments. Chemosphere,2005,61(1): 19-29
[8]  Li Junguo,Sun Hongwen,Zhang Yu,desorption of Pyrene from Freshly-Amended and Aged Soils and Its Relationship to Bioaccumulation in Earthworms. Soil Sediment Contam. ,2007,16(1): 79-88
[9]  Huang W,Weber W J Jr,A disTributed Reactivity Model for Sorption by Soil and Sediments. 10. Relationships between desorption,Hysteresis,and the Chemical Characteristics of Organic domains. Environ. Sci. technol. ,1997,31: 2562-2569

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133