Sorption And Transport Of Imazamethabenz InAgricultural Soils
1970
Sorption and transport characteristics of Imazamethabenz-methyl were investigated evaluating the validity of the transport ideality assumptions (i.e. isotherm linearity, sorption-desorption singularity, and instantaneous equilibrium). Laboratory batch equilibrium studies were conducted to evaluate the sorption-desorption behaviour and miscible displacement experiments on soil columns were performed at several pore water velocities. Experiments revealed a true hysteresis on desorption, with the adsorption isotherm being linear, and a transport-related nonequilibrium. Thus, this chemical will be detected at a given monitoring point earlier than when calculated by a local equilibrium assumption model and desorption will take longer than expected.
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