title: Evaluation of tertiary treatment by fungi, enzymatic and photo-Fenton oxidation on the removal of phenols from a kraft pulp mill effluent: a comparative study.
abstract: Pulp and paper mills generate pollutants associated to their effluents depending upon the type of process, type of the wood materials, process technology applied, management practices, internal recirculation of the effluent for recovery, the amount of water used in the industrial process and type of secondary treatment. This study is the first that reports a simultaneous evaluation of the effects of tertiary treatments by fungi (Rhizopus oryzae and Pleurotus sajor caju), by enzyme (laccase) and by an oxidation process (photo-Fenton) on individual phenols (vanillin, guaiacol, phloroglucinol, vanillic acid and syringic acid) of a Eucalyptus globulus bleached kraft pulp and paper mill final effluent after secondary treatment (BKPME). The tertiary treatments were applied on BKPME samples and in BKPME samples supplemented with extra concentration of each phenol. Tertiary treatments by Rhizopus oryzae and photo-Fenton oxidation were able of complete removal (100%) of phenols on BKPME samples whereas P. sajor caju and laccase were able of 60-85% removal. On BKPME samples with added concentration of each phenol, photo-Fenton was the only treatment capable of total phenols removal (100%), which suggests a great potential for its application.
authors.affiliation: ISEIT/Viseu, Instituto Piaget, Estrada do Alto do Gaio, Galifonge, 3515-776, Lordosa, Viseu, Portugal.
authors.forename: Celine
authors.initials: C
authors.lastname: Justino
authors.forename: Ana Gabriela
authors.initials: AG
authors.lastname: Marques
authors.forename: Dina
authors.initials: D
authors.lastname: Rodrigues
authors.forename: Lurdes
authors.initials: L
authors.lastname: Silva
authors.forename: Armando Costa
authors.initials: AC
authors.lastname: Duarte
authors.forename: Teresa
authors.initials: T
authors.lastname: Rocha-Santos
authors.forename: Ana Cristina
authors.initials: AC
authors.lastname: Freitas
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry / Q000378:metabolism; D001673:Biodegradation, Environmental; D005052:Eucalyptus / Q000737:chemistry; D005707:Gallic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D006139:Guaiacol / Q000737:chemistry / Q000378:metabolism; D007220:Industrial Waste; D042845:Laccase / Q000378:metabolism*; D010084:Oxidation-Reduction; D010209:Paper; D010636:Phenols / Q000737:chemistry* / Q000378:metabolism*; D010696:Phloroglucinol / Q000737:chemistry / Q000378:metabolism; D020076:Pleurotus / Q000378:metabolism*; D012233:Rhizopus / Q000378:metabolism*; D052616:Solid Phase Extraction; D014641:Vanillic Acid / Q000737:chemistry / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D001547:Benzaldehydes; D007220:Industrial Waste; D010636:Phenols; D005707:Gallic Acid; D006139:Guaiacol; C100058:vanillin; D010696:Phloroglucinol; C001945:syringic acid; D042845:Laccase; D014641:Vanillic Acid