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Adsorption and desorption characteristics of lindane, carbofuran and methyl parathion on various Indian soils
Published in
2008
PMID: 18455300
Volume: 160
   
Issue: 2-3
Pages: 559 - 567
Abstract
Adsorption and desorption characteristics of three insecticides on four Indian soils were studied. Insecticides used were representative of organochlorine, organophosphate, and carbomate groups. The order of adsorption of pesticides on soils was: lindane > methyl parathion > carbofuran. Compost soil had shown the maximum adsorption capacity. The order of adsorption capacity of various soils were: compost soil > clayey soil > red soil > sandy soil. Adsorption isotherms were better fitted to Freundlich model and Kf values increased with increase in organic matter content of the soils. Thermodynamic parameters indicated favorable adsorption of all the three pesticides in four different soils. Adsorption was exothermic in nature. Distilled water desorbed 30-60% of adsorbed pesticides whereas; organic solvents were able to affect 50-80% of sorbed pesticides. Clay content and organic matter played a significant role in pesticide adsorption and desorption processes. Hysteresis effect was observed in red, clayey and compost soils. Hysteresis effect increased with increase in organic matter and clay content of the soils. © 2008.
About the journal
JournalJournal of Hazardous Materials
ISSN03043894
Open AccessNo
Concepts (70)
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    Adsorption
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    AGRICULTURAL CHEMICALS
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    Atmospheric temperature
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    Biogeochemistry
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    Biological materials
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    Clay minerals
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    Composting
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    Cyclohexane
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    Desorption
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    ELASTICITY
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    Hysteresis
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    Insecticides
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    Organic compounds
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    Organic solvents
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    Pesticides
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    Soils
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    Sorption
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    Adsorption capacities
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    CARBOFURAN
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    CLAY CONTENTS
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    CLAYEY SOILS
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    DESORPTION CHARACTERISTICS
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    DESORPTION PROCESSES
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    DISTILLED WATERS
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    FREUNDLICH MODELS
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    HYSTERESIS EFFECTS
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    Lindane
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    METHYL PARATHION
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    METHYL PARATHIONS
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    ORGANIC CONTENT
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    ORGANIC MATTER CONTENTS
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    ORGANIC MATTERS
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    ORGANOCHLORINE
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    RED SOILS
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    Sandy soils
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    Thermodynamic parameters
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    Soil pollution
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    CARBAMIC ACID
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    CARBOFURAN
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    Organic matter
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    ORGANOCHLORINE DERIVATIVE
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    Organophosphate
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    PARATHION METHYL
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    CARBOFURAN
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    HCH
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    Pesticide
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    SANDY SOIL
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    Soil analysis
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    Thermodynamics
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    Adsorption kinetics
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    Article
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    Clay
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    COMPOST
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    Controlled study
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    Indian
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    Isotherm
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    Ph measurement
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    SANDY SOIL
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    SOIL PROPERTY
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    ALUMINUM SILICATES
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    CARBOFURAN
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    Environmental remediation
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    HUMIC SUBSTANCES
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    Hydrogen-ion concentration
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    India
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    Kinetics
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    METHYL PARATHION
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    Silicon dioxide
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    Soil
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    SOIL POLLUTANTS