title: Adsorption of anionic surfactant by a low-cost adsorbent.
abstract: This study was undertaken to evaluate the efficiency of rubber granule, a low-cost adsorbent for the removal of sodium dodecyl sulfate (SDS) that is a representative member of anionic surfactant (AS). In the batch experiments conducted at an initial concentration range of 2-6 mg/l, it was found that the rubber granules selected could remove SDS from water up to 90%. Kinetic profiles were developed for various conditions. Effects of adsorbent size, initial adsorbate concentration and adsorbent dose, pH, Ca2+ ion concentration, Fe2+ ion concentration, Cl- ion concentration, and ionic strength on the adsorption of SDS on rubber granules were studied. The adsorption isotherm studies were also conducted.
authors.affiliation: Department of Civil Engineering, Indian Institute of Technology, Kharagpur, West Bengal.
authors.forename: Paritosh Das
authors.initials: PD
authors.lastname: Purakayastha
authors.forename: Anjali
authors.initials: A
authors.lastname: Pal
authors.forename: Manas
authors.initials: M
authors.lastname: Bandyopadhyay
mesh_terms: D000327:Adsorption; D003363:Cost Control; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010316:Particle Size; D012408:Rubber / Q000737:chemistry; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*; D013696:Temperature; D018508:Water Purification / Q000379:methods*
chemical_list: D013501:Surface-Active Agents; D012967:Sodium Dodecyl Sulfate; D012408:Rubber