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Item Performance of Streptomyces rimosus biomass in biosorption of heavy metals from aqueous solutions(Elsevier, 2018) Sahmoune, Mohamed NasserThe removal of heavy metals by Streptomyces rimosus has been the subject of many investigations. This review paper focuses on the removal of heavy metals from aqueous solution through Streptomyces rimosus, produced from pharmaceutical industry as solid waste, as adsorbent, and discusses the effect of various process parameters like pH, temperature, metal concentration etc., on the metal removal efficiency of this bacterium. The paper also evaluates the different kinetic, equilibrium, and thermodynamic models used in Streptomyces rimosus sorption of heavy metals. Biomass characterization and sorption mechanisms as well as elution of metal ions are also discussed. The literature revealed that Streptomyces rimosus had a good affinity for binding lead and iron compared with other heavy metals. The adsorption of heavy metals is well described by Langmuir isotherm, which expresses the existence of monolayer adsorption. The kinetic data followed both pseudo first order and pseudo second order models. Thermodynamic studies showed spontaneous and exothermic nature of the sorption processes in most case. Dilute acids (HCl and H2SO4) are quite effective in desorption of heavy metals. Ion exchange played the chief role in the adsorption mechanism of metal, and carboxyl groups are mainly involved in this mechanismItem Effect of chemical treatment of the biomass fongic on the capacity of adsorption of the chromium(European Journal of Scientific Research, 2006) Sahmoune, Mohamed Nasser; Louhab, K.; Addad, J.; Goma, B.Heavy metals are present in different types of industrial effluent, being responsable for environmental pollution. Biosorption by the biomass fungic is a promising alternative method to treat industrial effluents, mainly because of its low cost and high metal binding capacity. In this paper we studied the effect of treatment at different concentration NaOH of the biomass fungic on the caracteristics of the biomass (morphology of the fungic biomass), and the capacity of adsorption of chromium. The analysis of the thermodynamic, the kinetics of adsorption, the spectra of infra-red spectra and the electron micrographs of the M.E.B. watch that these treatments, although resulting in apreciable weight reduction, also enhanced their capacity adsorption for chromium, while increasing the sorption kinetics. © EuroJournals Publishing, Inc. 2006Item Biosorption of Cr (III) from aqueous solutions using bacterium biomass Streptomyces rimosus(2009) Sahmoune, Mohamed Nasser; Louhab, K.; Boukhiar, A.Item Kinetic and equilibrium models for the biosorption of Cr(III) on streptomyces rimosus(Taylor & Francis, 2009) Sahmoune, Mohamed Nasser; Louhab, K.; Boukhiar, A.; Addad, J.; Barr, S.Item Kinetic analysis of trivalent chromium biosorption by dead streptomyces rimosus biomass(2010) Sahmoune, Mohamed Nasser; Louhab, K.