Documents disponibles écrits par cet auteur

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