title: Cadmium(II) sorption and desorption in a fixed bed column using sunflower waste carbon calcium-alginate beads.
abstract: The present study reports the use of sunflower waste carbon calcium-alginate beads (SWC-CAB) for cadmium removal from wastewater in continuous flow fixed bed columns. The experiments were conducted as a function of bed height, flow rate and initial Cd(II) concentration. The maximum biosorption capacity (23.6 mg/g) was attained at 30 cm bed height, 1.0 mL/min flow rate and 10 mg/L initial Cd(II) concentration. The Bohart-Adams model constants (N0 and K) were 7.7 mg/L and 1×10(-4) L/mgh with 0.999 R2 value at 50% breakthrough time. The column regeneration efficiency after third cycle was 58.6% for cadmium.
authors.affiliation: Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar 125 001, Haryana, India.
authors.forename: Monika
authors.initials: M
authors.lastname: Jain
authors.forename: V K
authors.initials: VK
authors.lastname: Garg
authors.forename: K
authors.initials: K
authors.lastname: Kadirvelu
mesh_terms: D000042:Absorption; D000383:Agriculture / Q000295:instrumentation; D000464:Alginates / Q000737:chemistry*; D002104:Cadmium / Q000737:chemistry / Q000302:isolation & purification*; D002244:Carbon / Q000737:chemistry; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020723:Glucuronic Acid / Q000737:chemistry; D006368:Helianthus / Q000737:chemistry*; D006603:Hexuronic Acids / Q000737:chemistry; D007220:Industrial Waste / Q000517:prevention & control; D014462:Ultrafiltration / Q000295:instrumentation*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D018508:Water Purification / Q000295:instrumentation*
chemical_list: D000464:Alginates; D002104:Cadmium; D002244:Carbon; D020723:Glucuronic Acid; D006603:Hexuronic Acids; D007220:Industrial Waste; D062065:Wastewater; D014874:Water Pollutants, Chemical