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环境科学 2009
Desorption Kinetics of 1,2,4,5-Tetrachlorobenzene in Sediments
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Abstract:
Sediment desorption batch technique experiments were conducted to study the influence of different types of natural organic matter(NOM) of sediment,initial solid-phase solute loading levels and temperatures on the desorption rates of 1,2,4,5-tetrachlorobenzene.A(4-parameter) biphasic first-order kinetic model described the desorption of 1,2,4,5-tetrachlorobenzene from the sediments. The results indicate that the rate constants k_s for the slowly desorbing fraction of each sample is up to 2 orders of magnitu...