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/dm3, 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
Cyclic process of simazine removal from waters by adsorption on zeolite H-Y and its regeneration by thermal treatment
MAROCCO, Antonello;ESPOSITO, Serena;PANSINI, Michele
2012-01-01
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/dm3, 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 combustionI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
