Promotion of HP-Beta-CD on Washing of Aroclor1242 from Soil

Author

Hong Liu ; Zhou Shi ; Quanb Sun ; Naiyun Gao

Author_Institution

Sch. of Environ. Sci. & Eng., Tongji Univ., Shanghai

fYear

2008

Firstpage

4121

Lastpage

4124

Abstract

The effect of Hydroxypropyl-beta-cyclodextrin(HP-beta-CD) on the removal of Aroclorl242-one kind of PCBs(Polychlorinated biphenyls)-contaminants from soil has been investigated. The interaction of HP-beta-CD with PCBs in solution yielded the formation of a water-soluble inclusion complex, which gave an increase in PCBs solubility, PCBs can be removed effectively from soil by HP-beta-CD elution. The efficiency of washing can be increased by increasing the concentration of HP-beta-CD and the number of washing respectively. The washing efficiency of Aroclorl242 from soil is almost 0 by distilled water while 81% by 50g/L of HP-beta-CD solution after five times washing. The results obtained indicate the high extract power of HP-beta-CD toward PCBs polluted soil and potential use of HP-beta-CD for in situ remediation of PCBs or other low-polarity organic contaminated soils.

Keywords

inclusions; organic compounds; soil pollution; solubility; Aroclor 1242; HP-beta-CD elution; PCBs polluted soil; hydroxypropyl-beta-cyclodextrin; in situ remediation; low-polarity organic contaminated soils; polychlorinated biphenyls-contaminants; solubility; washing; water-soluble inclusion complex; Chemical industry; Civil engineering; Educational institutions; Electrical equipment industry; Pollution control; Shape control; Soil pollution; Solvents; Water pollution; Water resources;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1747-6

Electronic_ISBN

978-1-4244-1748-3

Type

conf

DOI

10.1109/ICBBE.2008.531

Filename

4535411