Documents disponibles écrits par cet auteur

Heavy metals retention on recycled waste glass from solid wastes sorting operations / Andrea Petrella in Industrial & engineering chemistry research, Vol. 51 N° 1 (Janvier 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 1 (Janvier 2012) . - pp. 119–125 Titre : Heavy metals retention on recycled waste glass from solid wastes sorting operations : A comparative study among different metal species Type de document : texte imprimé Auteurs : Andrea Petrella, Auteur ; Mario Petrella, Auteur ; Giancarlo Boghetich, Auteur Année de publication : 2012 Article en page(s) : pp. 119–125 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Metals  Porous  glass Résumé : Heavy metals retention [Pb2+, Cd2+, Ni2+, and Cr(VI)] on recycled waste porous glass (RWPG) from solid wastes sorting operations was carried out. To the purpose metals containing solutions in the concentration range 2–4 mg/L, reproducing the average concentration present in, e.g., solid waste leachate from landfills or industrial effluents, were percolated onto columns loaded with RWPG beads with particle size in the range 0.35–1.0 mm and flow-rates between 0.23 and 0.75 L/h. Metals retention mechanism was associated with ion exchange with overall capacities in the following order: Pb2+ > Cd2+ > Ni2+ > Cr(VI) in consideration of the hydrated ion radius and free energy of hydration of the metal ions. The rate controlling step was identified with the ions interdiffusion in the Nernst liquid film around particles. The metals exhausted beads were embedded into cement conglomerates as inert materials thus minimizing metals release in the environment. The prepared mortar specimen showed improved thermal properties as compared to conventional (sand based) composites. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202207d [article] Heavy metals retention on recycled waste glass from solid wastes sorting operations : A comparative study among different metal species [texte imprimé] / Andrea Petrella, Auteur ; Mario Petrella, Auteur ; Giancarlo Boghetich, Auteur . - 2012 . - pp. 119–125. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 1 (Janvier 2012) . - pp. 119–125 Mots-clés : Metals  Porous  glass Résumé : Heavy metals retention [Pb2+, Cd2+, Ni2+, and Cr(VI)] on recycled waste porous glass (RWPG) from solid wastes sorting operations was carried out. To the purpose metals containing solutions in the concentration range 2–4 mg/L, reproducing the average concentration present in, e.g., solid waste leachate from landfills or industrial effluents, were percolated onto columns loaded with RWPG beads with particle size in the range 0.35–1.0 mm and flow-rates between 0.23 and 0.75 L/h. Metals retention mechanism was associated with ion exchange with overall capacities in the following order: Pb2+ > Cd2+ > Ni2+ > Cr(VI) in consideration of the hydrated ion radius and free energy of hydration of the metal ions. The rate controlling step was identified with the ions interdiffusion in the Nernst liquid film around particles. The metals exhausted beads were embedded into cement conglomerates as inert materials thus minimizing metals release in the environment. The prepared mortar specimen showed improved thermal properties as compared to conventional (sand based) composites. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202207d

Neutralization of acidic wastewater by the use of waste limestone from the marble industry. Mechanistic aspects and mass transfer phenomena of the acid-base reaction at the liquid-solid interface / Domenico Petruzzelli in Industrial & engineering chemistry research, Vol. 48 N°1 (Janvier 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - P. 399-405 Titre : Neutralization of acidic wastewater by the use of waste limestone from the marble industry. Mechanistic aspects and mass transfer phenomena of the acid-base reaction at the liquid-solid interface Type de document : texte imprimé Auteurs : Domenico Petruzzelli, Editeur scientifique ; Mario Petrelle, Editeur scientifique ; Giancarlo Boghetich, Editeur scientifique Année de publication : 2009 Article en page(s) : P. 399-405 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Acidic  wastewater  Limestone  Waste  limestone Résumé : Waste limestone from marble cutting operations was adopted as a neutralizing agent of acidic wastewater from the glass industry. Hydrogen fluoride containing wastewater from the glass matting operations was investigated with the final aim of studying the influence of mass-transfer phenomena at the liquid−solid interface of the heterogeneous neutralization reaction as the rate determining step of the overall process. In this context, chemicals interdiffusion at the stationary liquid film (Nernst film) around the particles and/or in the particles themselves may play a relevant role as kinetic rate determining step. Specifically, the influence of the stirring speed, temperature of the liquid−solid mixture, and grain size of the limestone particles during batch neutralization operations were analyzed in order to carry-out a mechanistic study of the acid−base reaction at the liquid−solid interface. Apparently, limestone is not the best material to be used in the neutralization of HF containing wastewater because of molecular interdiffusion hindrances of the involved species. The present work is essentially aimed to the interpretation of mechanistic aspects of the neutralization reaction in the reference heterogeneous solid−liquid system. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8014268 [article] Neutralization of acidic wastewater by the use of waste limestone from the marble industry. Mechanistic aspects and mass transfer phenomena of the acid-base reaction at the liquid-solid interface [texte imprimé] / Domenico Petruzzelli, Editeur scientifique ; Mario Petrelle, Editeur scientifique ; Giancarlo Boghetich, Editeur scientifique . - 2009 . - P. 399-405. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - P. 399-405 Mots-clés : Acidic  wastewater  Limestone  Waste  limestone Résumé : Waste limestone from marble cutting operations was adopted as a neutralizing agent of acidic wastewater from the glass industry. Hydrogen fluoride containing wastewater from the glass matting operations was investigated with the final aim of studying the influence of mass-transfer phenomena at the liquid−solid interface of the heterogeneous neutralization reaction as the rate determining step of the overall process. In this context, chemicals interdiffusion at the stationary liquid film (Nernst film) around the particles and/or in the particles themselves may play a relevant role as kinetic rate determining step. Specifically, the influence of the stirring speed, temperature of the liquid−solid mixture, and grain size of the limestone particles during batch neutralization operations were analyzed in order to carry-out a mechanistic study of the acid−base reaction at the liquid−solid interface. Apparently, limestone is not the best material to be used in the neutralization of HF containing wastewater because of molecular interdiffusion hindrances of the involved species. The present work is essentially aimed to the interpretation of mechanistic aspects of the neutralization reaction in the reference heterogeneous solid−liquid system. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8014268