April 2013
Influence of pH on persistence and dissipation of clofentezine, a tetrazine acaricide in water
Clofentezine is an environment friendly and integrated pest management (IPM) compatible pesticide. It is an acaricide that is used in plant protection products for the control of spider mites on a wide range of crops. It acts primarily as an ovicide, but has some activity against early motile stages of mites. In the present research, dissipation behavior of Clofentezine in acidic, neutral and alkaline water...
April 2013
Kinetic investigations of oxidation of chlorophenols by permanganate
The kinetics of oxidation of various chlorophenols such as 2-chlorophenol (2-CP), 3-chlorophenol (3-CP), 4-chlorophenol (4-CP), 2,4-dichlorophenol (2,4-DCP), 2,6-dichlorophenol (2,6-DCP) and 2,4,6-trichlorophenol (2,4,6-TCP) by potassium permanganate (0.8-3.2 mM) were studied in un-buffered solution with ionic strength ~0.02 M. Experimental results was indicated that the reaction of CPs with permanganate was...
April 2013
Computational study of environmental fate of ionic liquids using conductor-like screening model for real solvents (COSMO-RS) method
Conductor-like screening model for real solvents (COSMO-RS) method was used in screening 2106 potential ionic liquids as safer solvents to volatile n-dodecane used in plutonium and uranium extraction (PUREX). The octanol-water partition coefficient KOW, Bioconcentration factors (BCF) and Bioaccumulation of the ionic liquids were determined. From the results obtained, 111 of them have lower toxicity than the...
April 2013
Improvement of carbon dioxide absorption technology using conductor-like screening model for real solvents (COSMO-RS) method
Solvents with better properties than the ones presently in use for carbon dioxide (CO2) absorption processes would make absorption technology more attractive for large scale reduction of CO2 emissions. In this work, more than 2000 solvents comprising of four groups were considered for screening. The groups are: amine solvents (primary, secondary, tertiary, sterically hindered, multiple amines and...
April 2013
Non-cancer human health risk assessment from exposure to Cadmium, Copper, Lead and Mercury in surface water and ground water in Konongo-Odumasi Municipality, Ghana
A wide range of water quality parameters were measured from different water sources in the Konongo Odumasi Municipality. Physicochemical parameters were within the World Health Organization’s recommended limits for drinking water except turbidity. Values ranged from 66.4 to 360 mg/L; 111.1 to 603 µS/cm; 7.02 to 8.04; 4.4 to 40.2 mg/L; 1.25 to 7.07 mg/L and 4.5 to 370 NTU for total dissolve...
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