title: Preparation of activated carbons from agricultural residues for pesticide adsorption.
abstract: Activated carbons (ACs) can be used not only for liquid but also for vapour phase applications, such as water treatment, deodorisation, gas purification and air treatment. In the present study, activated carbons produced from agricultural residues (olive kernel, corn cobs, rapeseed stalks and soya stalks) via physical steam activation were tested for the removal of Bromopropylate (BP) from water. For the characterization of the activated carbons ICP, SEM, FTIR and XRD analyses were performed. Adsorption kinetics and equilibrium isotherms were investigated for all biomass activated carbons in aqueous solutions. Experimental data of BP adsorption have fitted best to the pseudo 2nd-order kinetic model and Langmuir isotherm. The study resulted that corn cobs showed better adsorption capacity than the other biomass ACs. Comparison among ACs from biomass and commercial ones (F400 and Norit GL50) revealed that the first can be equally effective for the removal of BP from water with the latter.
authors.affiliation: Chemical Engineering Department, Aristotle University of Thessaloniki, Un Box 455, 54124 Thessaloniki, Greece.
authors.forename: Ourania A
authors.initials: OA
authors.lastname: Ioannidou
authors.forename: Anastasia A
authors.initials: AA
authors.lastname: Zabaniotou
authors.forename: George G
authors.initials: GG
authors.lastname: Stavropoulos
authors.forename: Md Azharul
authors.initials: MA
authors.lastname: Islam
authors.forename: Triantafyllos A
authors.initials: TA
authors.lastname: Albanis
mesh_terms: D000327:Adsorption; D001561:Benzilates / Q000032:analysis / Q000737:chemistry*; D002606:Charcoal / Q000138:chemical synthesis / Q000737:chemistry*; D018556:Crops, Agricultural / Q000737:chemistry* / Q000648:ultrastructure; D052918:Environmental Restoration and Remediation / Q000379:methods; D007700:Kinetics; D008956:Models, Chemical; D010575:Pesticides / Q000032:analysis / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*
chemical_list: D001561:Benzilates; D010575:Pesticides; D014874:Water Pollutants, Chemical; D002606:Charcoal; C038267:isopropyl 4,4'-dibromobenzilate