title: Adsorption studies on teak leaves (Tectona grandis): removal of lead ions from wastewater.
abstract: Teak leaves (Tectona grandis) abundantly available in India showed high sorption capacity for lead ions and were found efficient for the removal of lead ions from aqueous solutions. The extent of removal was found to be dependent on pH, temperature, concentration of metal ions and the dose of adsorbent. Thermodynamic parameters were calculated at different temperatures. The sorbent once used can be regenerated and recycled two - three times almost with the same capacity. However, regeneration by column operation gave better results than batch process.
authors.affiliation: Department of Applied Chemistry, Environmental Research Laboratory, Z.H. College of Engineering and Technology, Aligarh Muslim University, Aligarh 202 002, India.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Ajmal
authors.forename: Rifaqat A K
authors.initials: RA
authors.lastname: Rao
authors.forename: Jameel
authors.initials: J
authors.lastname: Ahmad
authors.forename: Shahana
authors.initials: S
authors.lastname: Anwar
authors.forename: Rais
authors.initials: R
authors.lastname: Ahmad
mesh_terms: D000327:Adsorption; D019659:Asteraceae / Q000378:metabolism*; D001673:Biodegradation, Environmental; D001709:Biotechnology / Q000379:methods; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000032:analysis*; D008670:Metals / Q000032:analysis; D018515:Plant Leaves / Q000378:metabolism*; D011522:Protons; D013696:Temperature; D013816:Thermodynamics; D013997:Time Factors; D014197:Trees / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification
chemical_list: D008670:Metals; D011522:Protons; D014874:Water Pollutants, Chemical; D007854:Lead