Effects of Faujasite X and Y Zeolites on the 1,1,1-Trichloro-2,2’ bis(p-chlorophenyl)ethane (DDT) Degradation during Water Purification
International Journal of Environmental Protection and Policy
Volume 1, Issue 1, May 2013, Pages: 9-15
Received: May 31, 2013;
Published: Jun. 30, 2013
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Chrispin Ounga Kowenje, Maseno University, P.O. Box 333-40105, Maseno, Kenya
Elly Tetty Osewe, Kisumu Polytechnic, P. O. Box 143-40100, Kisumu, Kenya
Joseph Owuor Lalah, Technical University of Kenya, P. O. Box 52428-00200, Nairobi, Kenya
The ability of zeolites to abstract and denature organochloride pesticides finds application in water purification practices. In this study, activated faujasite X and Y zeolites were separately exposed to 1, 2 and 4 ppm concentrations of 1,1,1-trichloro-2,2’ bis(p-chlorophenyl) ethane (dichloro dipheny trichloroethane - DDT) water solutions. For the 1 ppm DDT solutions, the resultant degradation products and residual DDT were minimal with concentrations in zeolite treatments reducing to below detection limit (0.005 ppm) in about 2 hours. In addition, the rate of dissipation was found to somewhat depend on the levels of DDT concentration and the type of zeolite used. The main degradation product in samples exposed to faujasite X was dichloro dipheny dichloroethylene (DDE) whereas in the faujasite Y exposed samples, both the DDE and dichloro diphenyl dichloroethane (DDD) were obtained.
Chrispin Ounga Kowenje,
Elly Tetty Osewe,
Joseph Owuor Lalah,
Effects of Faujasite X and Y Zeolites on the 1,1,1-Trichloro-2,2’ bis(p-chlorophenyl)ethane (DDT) Degradation during Water Purification, International Journal of Environmental Protection and Policy.
Vol. 1, No. 1,
2013, pp. 9-15.
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