Title of article
Adsorptive characteristics of ionogenic aromatic pesticides in water on powdered activated carbon
Author/Authors
Jianying Hu، نويسنده , , Takako Aizawa، نويسنده , , Yutaka Ookubo، نويسنده , , Takeshi Morita، نويسنده , , Yasumoto Magara، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
8
From page
2593
To page
2600
Abstract
The adsorptive characteristics of ionogenic pesticides on powdered activated carbon were described. The effects of pH on the adsorbabilities of MCPB (an acidic pesticide) and imazalil (a basic pesticide) onto powdered activated carbon (PAC) were evaluated by correlating 1-octanol-water partition coefficients (log Pow) with the Freundlich adsorption constants over a pH range of 3 9. After being corrected with pH, the values of log Pow were found to be linearly related to the logarithm of k (i.e. log k). For MCPB, log k as well as log Pow decreased with the increase of pH in the range of pH>pKa and became constant in the range of pH
Keywords
pH , Dissociation constant , Drinking water treatment , 1-octanol-water partition coe?cient , ionogenic aromaticpesticides , activated carbon adsorption
Journal title
Water Research
Serial Year
1998
Journal title
Water Research
Record number
766606
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