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Interactions between BTEX, TPH, and TCE during their bio-removal from the artificially contaminated water
Yiqin Chen; Junhui Li; Chengkeng Lei; Hojae Shim
2011
Conference Name2nd International Conference on Bioenvironment, Biodiversity and Renewable Energies (BIONATURE 2011)
Source PublicationBIONATURE 2011 : The Second International Conference on Bioenvironment, Biodiversity and Renewable Energies
Pages33-37
Conference DateMay 22-27, 2011
Conference PlaceVenice/Mestre, Italy
Abstract

Many environmental sites are becoming contaminated by mixed wastes, including such organic compounds as BTEX (benzene, toluene, ethylbenzene, and three isomers of xylene), TPH (total petroleum hydrocarbons), and CAHs (chlorinated aliphatic hydrocarbons) including TCE (trichloroethylene). TCE, as a representative CAH, has been widely used in various industrial processes and is among the most prevalent hazardous organic compounds present in the environment. In this study, a microbial pure culture enriched and isolated from a heavily oil-contaminated site in Xiamen, China, was used to remove mixtures of BTEX, TPH, and TCE under different pHs (5, 7, and 9) at 25°C, from the artificially contaminated water and to assess the interactions between those compounds during their bio-removal. The mixtures of BTEX (BTEoX, BTEmX, and BTEpX) and TPH showed different trends when TCE added to the mixture. TCE showed an inhibitory effect on bio-removal of o-xylene in BTEoX mixture, while it showed a stimulatory effect on the overall removal efficiencies for BTEmX and BTEpX mixtures. On the other hand, TCE was the most efficiently removed when mixed with BTEoX and TPH, except at pH 5, while less removed in other mixtures at almost similar amounts, regardless of pH. The highest removal of BTEX and TPH occurred at pH 7 or 9, while the highest removal of TCE occurred at pH 7, regardless of mixtures.

KeywordBtex Tph Interaction Mixture Ph Tce
URLView the original
Language英语
Fulltext Access
Document TypeConference paper
CollectionFaculty of Science and Technology
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
AffiliationDepartment of C ivil and Environmental Engineering Faculty of Science and Technology, University of Macau Taipa, Macau SAR, China
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Yiqin Chen,Junhui Li,Chengkeng Lei,et al. Interactions between BTEX, TPH, and TCE during their bio-removal from the artificially contaminated water[C],2011:33-37.
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