Treatment of cyanide bearing water/wastewater by plain and biological activated carbon / Rajesh Roshan Dash in Industrial & engineering chemistry research, Vol. 48 N° 7 (Avril 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3619–3627 Titre : Treatment of cyanide bearing water/wastewater by plain and biological activated carbon Type de document : texte imprimé Auteurs : Rajesh Roshan Dash, Auteur ; Chandrajit Balomajumder, Auteur ; Arvind Kumar, Auteur Année de publication : 2009 Article en page(s) : pp. 3619–3627 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Cyanide SAB process Granular activated carbon Adsorption Biodegradation Résumé : Comparative study of biodegradation and adsorption alone with simultaneous adsorption and biodegradation (SAB) process was carried out along with a brief review of the processes. Adsorption and SAB studies were carried out in plain and Pseudomonas putida immobilized granular activated carbon (GAC), whereas biodegradation was conducted with suspended cultures of P. putida. P. putida used iron cyanide as the sole source of nitrogen at an initial pH of 7.0 and temperature of 30 °C. At an initial iron(II) cyanide concentration of 100 mg/L, removal efficiencies of cyanide by adsorption, biodegradation, and SAB were found to be 81.5%, 78.2%, and 96.7%, respectively. The initial ferrocyanide concentrations of 50−350 mg CN−/L were taken for the study. The microbes adopted to grow at maximum cyanide concentration were harvested, and their ability to degrade cyanide were measured in both biodegradation and SAB. The removal efficiency of biologically activated granular activated carbon (BAC) was found better as compared to that of plain GAC. It was also found that the SAB process is more effective than adsorption and biodegradation alone. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071299y [article] Treatment of cyanide bearing water/wastewater by plain and biological activated carbon [texte imprimé] / Rajesh Roshan Dash, Auteur ; Chandrajit Balomajumder, Auteur ; Arvind Kumar, Auteur . - 2009 . - pp. 3619–3627. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3619–3627 Mots-clés : Cyanide SAB process Granular activated carbon Adsorption Biodegradation Résumé : Comparative study of biodegradation and adsorption alone with simultaneous adsorption and biodegradation (SAB) process was carried out along with a brief review of the processes. Adsorption and SAB studies were carried out in plain and Pseudomonas putida immobilized granular activated carbon (GAC), whereas biodegradation was conducted with suspended cultures of P. putida. P. putida used iron cyanide as the sole source of nitrogen at an initial pH of 7.0 and temperature of 30 °C. At an initial iron(II) cyanide concentration of 100 mg/L, removal efficiencies of cyanide by adsorption, biodegradation, and SAB were found to be 81.5%, 78.2%, and 96.7%, respectively. The initial ferrocyanide concentrations of 50−350 mg CN−/L were taken for the study. The microbes adopted to grow at maximum cyanide concentration were harvested, and their ability to degrade cyanide were measured in both biodegradation and SAB. The removal efficiency of biologically activated granular activated carbon (BAC) was found better as compared to that of plain GAC. It was also found that the SAB process is more effective than adsorption and biodegradation alone. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071299y

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