title: Adsorption of chromium from aqueous solutions by maple sawdust.
abstract: This paper presents the data for the effect of adsorbent dose, initial sorbate concentration, contact time, and pH on the adsorption of chromium(VI) on maple sawdust. Batch adsorption studies have been carried out. An empirical relationship has been obtained to predict the percentage chromium(VI) removal at any time for known values of sorbent and initial sorbate concentration. Under observed test conditions, the equilibrium adsorption data fits the linear Langmuir and Freundlich isotherms. The experimental result inferred that chelation ion exchange is one of the major adsorption mechanisms for binding metal ions to the maple sawdust.
authors.affiliation: Department of Chemistry, Lamar University, Beaumont, TX 77710, USA.
authors.forename: Li Jia
authors.initials: LJ
authors.lastname: Yu
authors.forename: Shyam S
authors.initials: SS
authors.lastname: Shukla
authors.forename: Kenneth L
authors.initials: KL
authors.lastname: Dorris
authors.forename: Alka
authors.initials: A
authors.lastname: Shukla
authors.forename: J L
authors.initials: JL
authors.lastname: Margrave
mesh_terms: D031002:Acer; D000327:Adsorption; D002274:Carcinogens, Environmental / Q000737:chemistry* / Q000302:isolation & purification*; D002614:Chelating Agents; D002857:Chromium / Q000737:chemistry* / Q000302:isolation & purification*; D007474:Ion Exchange; D014865:Waste Disposal, Fluid / Q000379:methods; D018508:Water Purification / Q000379:methods*; D014934:Wood
chemical_list: D002274:Carcinogens, Environmental; D002614:Chelating Agents; D002857:Chromium; C074702:chromium hexavalent ion