title: The effect of combination enzymatic and advanced oxidation process treatments on the colour of pulp and paper mill effluent.
abstract: The efficiency of advanced oxidation processes (AOPs), enzymatic treatment and combined enzymatic/AOP sequences for the colour remediation of soda and chemimechanical pulp and paper mill effluent was investigated. The results indicated that under all circumstances, the AOP using ultraviolet irradiation (photo-Fenton) was more efficient in the degradation of effluent components in comparison with the dark reaction. It was found that both versatile peroxidase (VP) from Bjerkandera adusta and laccase from Trametes versicolor, as pure enzymes, decolorize the deep brown effluent to a clear light-yellow solution. In addition, it was found that in the laccase treatment, the decolorization rates of both effluents were enhanced in the presence of 2, 2'-azinobis (3-ethylbenzthiazoline-6-sulfonate), while in the case of VP, Mn(+2) decreased the efficiency of the decolorization treatment. The concomitant use of enzymes and AOPs imposes a considerable effect on the colour remediation of effluent samples.
authors.affiliation: Civil Engineering Department, Faculty of Engineering, Universiti Putra, 43400 UPM Serdang, Selangor Darul Ehsan, Kuala Lampor, Malaysia. samaneh_karimi@ymail.com
authors.forename: Samaneh
authors.initials: S
authors.lastname: Karimi
authors.forename: Ali
authors.initials: A
authors.lastname: Abdulkhani
authors.forename: Alinaghi
authors.initials: A
authors.lastname: Karimi
authors.forename: Abdul Halim B
authors.initials: AH
authors.lastname: Ghazali
authors.forename: Fakhru L-Razi
authors.initials: FL
authors.lastname: Ahmadun
mesh_terms: D052160:Benzothiazoles / Q000494:pharmacology; D003116:Color; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007220:Industrial Waste; D007501:Iron / Q000737:chemistry*; D042845:Laccase / Q000737:chemistry* / Q000378:metabolism; D010209:Paper; D009195:Peroxidase / Q000737:chemistry* / Q000378:metabolism; D013451:Sulfonic Acids / Q000494:pharmacology; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000378:metabolism / Q000528:radiation effects
chemical_list: D052160:Benzothiazoles; C045076:Fenton's reagent; D007220:Industrial Waste; D013451:Sulfonic Acids; D014874:Water Pollutants, Chemical; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; D006861:Hydrogen Peroxide; D007501:Iron; D042845:Laccase; D009195:Peroxidase