title: Nanoporous activated carbon fluidized bed catalytic oxidations of aqueous o, p and m-cresols: kinetic and thermodynamic studies.
abstract: Nanoporous activated carbon prepared from rice husk through precarbonisation at 400 °C and phosphoric acid activation at 800 °C was used as fluidized bed in Fenton oxidation of the o, p and m-cresols in aqueous solution. The efficiencies of homogeneous Fenton oxidation, fluidized Fenton oxidation and aerobic biological oxidation systems for the removal of o, p and m-cresols in aqueous solution have been compared. The kinetic constants and the thermodynamic parameters for the homogeneous Fenton, heterogeneous Fenton and aerobic biological oxidations of o, p and m-cresols in synthetic wastewater were determined. The degradation of cresols in synthetic wastewater was confirmed using FT-IR, (1)H-NMR and UV-visible spectroscopy.
authors.affiliation: Environmental Technology Division, Council of Scientific & Industrial Research (CSIR), Central Leather Research Institute (CLRI), Adyar, Chennai 600 020, India. karthik.keyan02@gmail.com
authors.forename: S
authors.initials: S
authors.lastname: Karthikeyan
authors.forename: G
authors.initials: G
authors.lastname: Sekaran
authors.forename: V K
authors.initials: VK
authors.lastname: Gupta
mesh_terms: D001673:Biodegradation, Environmental; D019149:Bioreactors; D002384:Catalysis; D002606:Charcoal / Q000032:analysis / Q000737:chemistry*; D003408:Cresols / Q000032:analysis / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008962:Models, Theoretical; D053758:Nanoparticles / Q000032:analysis / Q000737:chemistry*; D009584:Nitrogen / Q000032:analysis / Q000737:chemistry; D009994:Osmolar Concentration; D010084:Oxidation-Reduction; D011549:Pseudomonas / Q000254:growth & development / Q000302:isolation & purification; D012996:Solutions / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D013816:Thermodynamics; D062065:Wastewater / Q000032:analysis / Q000737:chemistry / Q000382:microbiology; D014867:Water / Q000032:analysis / Q000737:chemistry
chemical_list: D002606:Charcoal; D003408:Cresols; D006861:Hydrogen Peroxide; D009584:Nitrogen; D012996:Solutions; D062065:Wastewater; D014867:Water