Publications Scientifiques
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Item Comparative study of biosorption of Cu+2, Ni+2, Cd+2, Zn+2 and Co+2 ions on the Pleurotus mutilus biomass(Université M'hamed Bougara de Boumerdès, 2018) Madani, A.; Selatnia, A.; Chergui, A.; Yeddou, A.R.; Nadjemi, B.In this study the biomass Pleurotus mutilus was used for the biosorption of Cu2+, Ni2+, Cd2+, Zn+2 and Co+2 ions. The effect of different parameters such as contact time, adsorbate concentration, pH of the medium and temperature were investigated. The sorption capacities were in the order of Cd2+ > Zn+2 > Co+2 >Cu2+ > Ni2+ . This order can be explained by their different values of affinities respectively. In order to prediction of the rate controlling step(external or internal mass transfer) , Boyd model was used in all case. Results showed that the external mass transfer is the rate controlling step. Different thermodynamic parameters such as enthalpy and entropy and change in standard free energy have also been evaluated and it has been found that the reaction was spontaneous and exothermic in nature. The Freundlich, Langmuir, Temkin and Dubinin-Raduskuvich adsorption models were used for the mathematical description of the biosorption equilibrium.Item Biosorption of hexavalent chromium and Congo red dye onto Pleurotus mutilus biomass in aqueous solutions(Springer Science and Business Media Deutschland GmbH, 2021) Alouache, A.; Selatnia, A.; Sayah, Houssem Eddine; Khodja, M.; Moussous, S.; Daoud, N.With the significantly increasing pharmaceutical and antibiotics industry in Algeria, the elimination of biomass is of utmost importance since the latter represents a large part of waste from the manufacturing process. In this work, the elimination of hexavalent chromium Cr (VI) and Congo red dye is part of the Pleurotus mutilus biomass recovery process. Thus, biosorption has been studied in a discontinuous system. Optimal conditions were estimated by variations in contact time, temperature, initial pollutant concentrations, and simultaneous removal of both pollutants. The greatest uptake capacities achieved were 36.68 mg/g of and 15.08 mg/g of Cr(VI). The initial concentrations of both pollutants being equal to 50 mg/l, for a duration time of 180 min and a temperature of 300 K. Based on the values of the coefficient of determination R2, χ2, and ARE, the isothermal equilibrium data were better represented by Freundlich, Temkin, and Dubinin-Radushkevich models. The kinetic biosorption of the two pollutants was well described using the pseudo-first-order model. The biosorption process is controlled by external mass transfer. The physical process in nature of Cr(VI) and (CR) biosorption has been justified based on the values obtained of ΔG° and ΔH°. Globally, this work demonstrates the considerable potential of Pleurotus mutilus for the elimination of anionic pollutants. Research results indicate that this biomass, a waste material, first destined for incineration, was recovered without any treatment. Due to its low cost, it could serve as an inexpensive source for recovering heavy metals and dyes from dilute contaminated water. © 2021, Islamic Azad University (IAU)Item Biosorption of Congo red dye by Aspergillus carbonarius M333 and Penicillium glabrum Pg1 : Kinetics, equilibrium and thermodynamic studies(Elsevier, 2017) Bouras, Hadj Daoud; Yeddou, Ahmed Réda; Bouras, Noureddine; Hellel, Djamila; Holtz, Michael D.; Sabaou, Nasserdine; Chergui, Abdelmalek; Nadjemi, BoubekeurItem Investigation of swelling/adsorption behavior of calcium alginate beads(2016) Belalia, Fatiha; Djelali, Nacer-EddineItem Studies of chromium removal from tannery effluents by dead streptomyces rimosus(2008) Sahmoune, Mohamed Nasser; Louhab, Krim; Boukhiar, AissaItem Biosorption of Cr (III) from aqueous solutions using bacterium biomass Streptomyces rimosus(2009) Sahmoune, Mohamed Nasser; Louhab, K.; Boukhiar, A.Item Kinetic analysis of trivalent chromium biosorption by dead streptomyces rimosus biomass(2010) Sahmoune, Mohamed Nasser; Louhab, K.Item Advanced biosorbents materials for removal of chromium from water and wastewaters(American Institute of Chemical Engineers, 2011) Sahmoune, Mohamed Nasser; Louhab, Krim; Boukhiar, AissaItem Biosorption of heavy metals by streptomyces species — an overview(Springer, 2013) Mosbah, Rachid; Sahmoune, Mohamed Nasser