title: Persulfate oxidation for the aniline degradation in aqueous systems.
abstract: Ferrous catalyzed persulfate oxidation of dissolved aniline was investigated in aqueous systems under a variety of ferrous ion concentrations and temperature. Result showed that the addition of ferrous ions accelerated the degradation of aniline by persulfate. For the thermally activated persulfate oxidation experiment, the optimum persulfate/aniline concentration ratio at 30˚C was at 5.4 mM or 20/1. This ratio gave the highest aniline removal of 45%. For the ferrous ion catalyzed persulfate oxidation experiment, there was marginal difference in the result for the various ferrous ion/oxidant molar ratios. Thus, another series of experiment was conducted to determine the optimum ratio and a ferrous ion/persulfate molar ratio of 1.25/1 showed the highest removal efficiency.
authors.affiliation: Department of Environmental Engineering, King Mongkut's University of Technology Thonburi, Bangkok, Thailand.
authors.forename: Jin
authors.initials: J
authors.lastname: Anotai
authors.forename: Nalinrut
authors.initials: N
authors.lastname: Masomboon
authors.forename: Chung-Lin
authors.initials: CL
authors.lastname: Chuang
authors.forename: Ming-Chun
authors.initials: MC
authors.lastname: Lu
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D002274:Carcinogens, Environmental / Q000737:chemistry*; D005296:Ferrous Compounds / Q000737:chemistry*; D005609:Free Radicals / Q000737:chemistry*; D010084:Oxidation-Reduction; D017670:Sodium Compounds / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry*; D013696:Temperature; D014874:Water Pollutants, Chemical; D018508:Water Purification
chemical_list: D000814:Aniline Compounds; D002274:Carcinogens, Environmental; D005296:Ferrous Compounds; D005609:Free Radicals; D017670:Sodium Compounds; D013431:Sulfates; D014874:Water Pollutants, Chemical; C024625:sodium persulfate; C023650:aniline