title: Potato peels as solid waste for the removal of heavy metal copper(II) from waste water/industrial effluent.
abstract: A new sorbent potato peels, which are normally discarded as solid waste for removing toxic metal ion Cu(II) from water/industrial waste water have been studied. Potato peels charcoal (PPC) was investigated as an adsorbent of Cu(II) from aqueous solutions. Kinetic and isotherm studies were carried out by studying the effects of various parameters such as temperature, pH and solid liquid ratios. The optimum pH value for Cu(II) adsorption onto potato peels charcoal (PPC) was found to be 6.0. The thermodynamic parameters such as standard Gibb's free energy (Delta G degrees ), standard enthalpy (Delta H degrees ) and standard entropy (DeltaS degrees ) were evaluated by applying the Van't Hoff equation. The thermodynamics of Cu(II) adsorption onto PPC indicates its spontaneous and exothermic nature. The equilibrium data at different temperatures were analyzed by Langmuir and Freundlich isotherms.
authors.affiliation: Department of Chemistry, Lahore College for Women University, Lahore, Pakistan.
authors.forename: Tehseen
authors.initials: T
authors.lastname: Aman
authors.forename: Asrar Ahmad
authors.initials: AA
authors.lastname: Kazi
authors.forename: Muhammad Usman
authors.initials: MU
authors.lastname: Sabri
authors.forename: Qudsia
authors.initials: Q
authors.lastname: Bano
mesh_terms: D000327:Adsorption; D003300:Copper / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste / Q000032:analysis*; D007700:Kinetics; D012037:Refuse Disposal; D012722:Sewage / Q000032:analysis*; D011198:Solanum tuberosum / Q000737:chemistry*; D013696:Temperature; D013816:Thermodynamics
chemical_list: D007220:Industrial Waste; D012722:Sewage; D003300:Copper