title: Cyclic process of simazine removal from waters by adsorption on zeolite H-Y and its regeneration by thermal treatment.
abstract: Removal of the agrochemical simazine from polluted waters through adsorption by zeolite Y in its protonic form was studied. The investigated parameters were: pH, time, initial simazine concentration and solid/liquid ratio. An iterative process of simazine removal from waters is proposed, featuring: (i) final agrochemical concentration well below 0.05 mg/dm(3), the maximum concentration allowed by Italian laws in wastewaters; (ii) regeneration of the adsorbent by a few minutes thermal treatment in air at about 500°C, which results in the combustion of simazine without damage of the adsorbent; (iii) destruction of the agrochemical compound by combustion.
authors: Dipartimento di Scienze del Suolo, della Pianta, dell'Ambiente e delle Produzioni Animali, Università di Napoli Federico II, Via Università 100, 80055 Portici (NA), Italy. fsannino@unina.it
authors: Filomena
authors: F
authors: Sannino
authors: Silvia
authors: S
authors: Ruocco
authors: Antonello
authors: A
authors: Marocco
authors: Serena
authors: S
authors: Esposito
authors: Michele
authors: M
authors: Pansini
mesh_terms: D000327:Adsorption; D006540:Herbicides / Q000737:chemistry*; D006358:Hot Temperature; D059027:Recycling / Q000379:methods; D012839:Simazine / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*; D017641:Zeolites / Q000737:chemistry*
chemical_list: D006540:Herbicides; D014874:Water Pollutants, Chemical; D017641:Zeolites; D012839:Simazine