title: Anions effects on biosorption of Mn(II) by extracellular polymeric substance (EPS) from Rhizobium etli.
abstract: Microbial extracellular polymeric substances (EPS) are potential biosorbents for metal remediation and recovery. The Langmuir and Freundlich kinetics of Mn(II) binding by the EPS from a novel Mn(II) oxidising strain of Rhizobium etli were determined. Maximum manganese specific adsorptions (q(max)) decreased in the sequence: sulphate (62 mg Mn per g EPS) > nitrate (53 mg g(-1)) > chloride (21 mg g(-1)). Consideration of the anion during kinetic studies is usually neglected but is important in providing more practical and comparable data between different biosorbent systems.
mesh_terms: D000327:Adsorption; D000838:Anions / Q000737:chemistry; D007700:Kinetics; D008345:Manganese / Q000737:chemistry*; D011485:Protein Binding; D042163:Rhizobium etli / Q000737:chemistry / Q000145:classification / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D000838:Anions; D008345:Manganese