RT Journal Article
T1 Adsorption study of low-cost and locally available organic substances and a soil to remove pesticides from aqueous solutions
A1 Rojas Rodríguez, Raquel
A1 Morillo, J
A1 Usero, J
A1 Vanderlinden, E
A1 El Bakouri, H
K1 Pesticide removal
K1 Organic residues
K1 Adsorption isotherms
K1 Desorption
K1 Kinetic models
AB Sorption and desorption of chlorfenvinphos, chlorpyrifos, simazine and trifluralin on sunflower seed shells, rice husk, composted sewage sludge and an agricultural soil was studied. Film diffusion and sorption pointed to be related with pesticide physicochemical characteristics. Trifluralin and chlorpyrifos were the pesticides which showed the fastest sorption kinetics and the best sorption capacities when sorbed on all organic wastes. Rice husk revealed as the best adsorbent for simazine. Chlorfenvinphos showed comparable adsorption levels for all sorbents. Koc and Kf values suggested that not only the organic matter content but also the nature of the organic matter and other factors, such as physicochemical characteristics of the surface could be play a significant role in pesticide adsorption. Low desorption percentages were detected; nevertheless Kfd and H values reveal a weak and reversible adsorption. The studied organic residues can be used as an effective and alternative adsorbent for removing pesticides, because of their high adsorption capacity, being natural and economic.
PB Elsevier B.V
YR 2015
FD 2015
LK https://hdl.handle.net/10433/26024
UL https://hdl.handle.net/10433/26024
LA en
NO Rojas, R., Morillo, J., Usero, J., Vanderlinden, E., & El Bakouri, H. (2015). Adsorption study of low-cost and locally available organic substances and a soil to remove pesticides from aqueous solutions. Journal of Hydrology (Amsterdam), 520, 461–472. https://doi.org/10.1016/j.jhydrol.2014.10.046
NO Universidad Pablo de Olavide. Departamento de Biología Molecular e Ingeniería Bioquímica
NO Universidad de Sevilla, Departamento de Ingeniería Química y Ambiental
DS RIO
RD May 8, 2026