Desorption kinetics of PCP-contaminated soil: effect of temperature

Low-temperature thermal desorption of diesel polluted soil: Influence of temperature and soil texture on contaminant removal kinetics

“…Several studies on thermal desorption treatment have been performed in order to understand the fundamentals of contaminant release [8][9][10] and to investigate the effects of process physical parameters on the remediation efficiency of hydrocarbon contaminants such as PCBs [11,12], PCPs [13], chlorinated solvents [14,15], and PAHs [16,17]. Temperature, treatment time and soil characteristics have been identified as key factors of remedial processes.…”

Bioremediation of a Chilean Andisol contaminated with pentachlorophenol (PCP) by solid substrate cultures of white-rot fungi

“…5d) corroborates these results with a faster adsorption rate after 7 days of incubation in both treatments (with and without wheat grains) and at both initial PCP concentrations. Adsorption has been considered the principal mechanism in the majority of studies of PCP degradation in soil (Tse and Lo 2002). Cea et al (2005) demonstrated that Chilean Andisols are particularly efficient sorbents for chlorophenols, mainly for allophane-ferrihydrite associations found in accumulate organic matter through the formation of stable complexes with FeOH and AlOH, and these allow hydrogen bond formation between penolic hydroxyl group and pentachlorophenol.…”

Removal of pentachlorophenol from aqueous solutions by dolomitic sorbents

“…This effect suggests that the adsorption mechanism associated with the removal of PCP onto dolomitic sorbents involves a physical process. Tse and Lo [32] studied the effect of temperature on the desorption kinetics of pentachlorophenol from soil and showed that PCP exhibited a preference for the aqueous phase rather than the soil matrix when the temperature was raised. The same phenomenon was observed in the case of the phosphate retention by dolomite [20].…”