Characteristics and influencing factors of tetrachloroethylene sorption–desorption on soil and its components

In this work, the adsorption-desorption dynamics of diuron in three typical Kenyan agricultural soils, Nzoia (NZ), Thika (TH) and Machakos (MK) was investigated. The equilibrium adsorption data, tested against three classical nonlinear adsorption isotherms, was best described by the Freundlich model. The Freundlich adsorption constant, (K F), increased in the order MK > TH > NZ soil. Additionally, the negative Gibb's free energy values indicate the adsorption processes were thermodynamically spontaneous and physical. Multiple linear regression analysis indicated that the adsorption-desorption behavior was controlled by the clay and phosphorus contents of the soil. Phosphorus negatively affected the adsorption of diuron and promoted desorption. The groundwater ubiquity score (GUS) indicated that diuron movement rating in MK soil was 'moderate' while the movement in TH and NZ soils was 'high'.

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Effects of soil components and solution inorganic cations on interactions of imidazolium-based ionic liquid with soils

Miao

2018

Journal of Environmental Management

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Characteristics and influencing factors of tetrachloroethylene sorption–desorption on soil and its components

Cited by 6 publications

References 48 publications

Sorption-desorption hysteresis

Sorption-desorption hysteresis

Adsorption-desorption and leaching behavior of diuron on selected Kenyan agricultural soils

Effects of soil components and solution inorganic cations on interactions of imidazolium-based ionic liquid with soils

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