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http://krishi.icar.gov.in/jspui/handle/123456789/47077
Title: | Sorption of metolachlor and atrazine in fly ash amended soils: Comparison of optimized isotherm models |
Other Titles: | Not Available |
Authors: | Not Available Rakesh Kumar Ghosh, Neera Singh |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Indian Agricultural Research Institute |
Published/ Complete Date: | 2012-01-01 |
Project Code: | Not Available |
Keywords: | Metolachlor, atrazine, fly ash, adsorption isotherm models |
Publisher: | Taylor & Francis Group |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | Adsorption of metolachlor and atrazine was studied in the fly ash (Inderprastha and Badarpur)- amended Inceptisol and Alfisol soils using batch method. Results indicated that sorption of both the herbicides in soil+fly ash mixtures was highly nonlinear and sorption decreased with a higher herbicide concentration in the solution. Also, nonlinearity increased with an increase in the level of fly ash amendment from 0–5%. Three two-parameter monolayer isotherms viz. Langmuir, Temkin, Jovanovic and one imperical Freundlich models were used to fit the experimental data. Data analysis and comparison revealed that the Temkin and the Freundlich isotherms were best-suited to explain the sorption results and the observed and the calculated adsorption coefficient values showed less variability. The study suggested that sorption mechanism of metolachlor and atrazine involved the physical association at the sorbate surface and the nonlinearity in the sorption at higher pesticide or fly ash concentration was due to a decrease in the heat of adsorption and higher binding energy. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Journal |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was |
NAAS Rating: | 7.7 7.7 |
Volume No.: | 47 |
Page Number: | 718-727 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available DOI: 10.1080/03601234.2012.669288 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/47077 |
Appears in Collections: | AEng-NINFET-Publication |
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