title: Synthesis, characterization and evaluation of two crosslinked polymeric resins and their comparison with walnut shell in oil removal from water.
abstract: The aim of this paper was to compare two kinds of adsorbents (walnut shell and polymeric resins) in terms of their efficiency to remove oil from water, since walnut shell losses weight during the process requiring interruption, while polymeric resins do not. Polymeric resins based on glycidyl methacrylate and divinylbenzene (GMA-DVB) and styrene and divinylbenzene (STY-DVB) were synthesized and characterized. All adsorbents were tested by continuous flow process, eluting 3,000 bed volumes of synthetic oily water, and the oil content was monitored by fluorescence spectroscopy. Although the walnut shell presented high efficiency (∼94%), STY-DVB was even better (∼100%) besides presenting better mechanical resistance. Moreover, polymeric resins, mainly when based on GMA, can be chemically modified to remove specific contaminants still remaining in water after conventional treatment.
authors.affiliation: a Federal Institute of Education, Science and Technology of Rio de Janeiro (IFRJ) , Duque de Caxias / RJ , Brazil.|b Macromolecules Institute, Federal University of Rio de Janeiro , Rio de Janeiro / RJ , Brazil.
authors.forename: Thiago M
authors.initials: TM
authors.lastname: Aversa
authors.affiliation: b Macromolecules Institute, Federal University of Rio de Janeiro , Rio de Janeiro / RJ , Brazil.
authors.forename: Carla M F
authors.initials: CM
authors.lastname: Silva
authors.affiliation: b Macromolecules Institute, Federal University of Rio de Janeiro , Rio de Janeiro / RJ , Brazil.
authors.forename: Quéren C
authors.initials: QC
authors.lastname: Rocha
authors.affiliation: b Macromolecules Institute, Federal University of Rio de Janeiro , Rio de Janeiro / RJ , Brazil.|c COPPE, Program of Metallurgy and Materials Engineering, Federal University of Rio de Janeiro , Rio de Janeiro / RJ , Brazil.
authors.forename: Elizabete F
authors.initials: EF
authors.lastname: Lucas
mesh_terms: D006801:Humans; D007220:Industrial Waste; D031324:Juglans; D010578:Petroleum; D011108:Polymers / Q000737:chemistry; D013343:Styrenes / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D007220:Industrial Waste; D010578:Petroleum; D011108:Polymers; D013343:Styrenes; D014874:Water Pollutants, Chemical
keywords: Fixed bed; oily water; polymeric resins; suspension polymerization; walnut shell