Advanced oxidation process H2O2/UV combined with anaerobic digestion to remove chlorinated organics from bleached kraft pulp mill wastewater

BOTELHO RUAS, Diego ; RODRIGUEZ CHAPARRO, Tatiana ; et al.

In: Revista Facultad de Ingeniería Universidad de Antioquia, 2012, Heft 63, S. 43-54

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This study investigated the application of an advanced oxidation process combining hydrogen peroxide with ultraviolet radiation (H2O2/UV) to remove recalcitrant compounds from Kraft bleaching effluent. Anaerobic pre-treatment was performed to remove easily degraded organics using a horizontal-flow anaerobic immobilized biomass (HAIB) reactor. Bleaching plant effluent was treated in the HAIB reactor processed over 19 h of hydraulic retention time (HRT), reaching the expected removal efficiencies for COD (61 ± 3%), TOC (69 ± 9%), BOD5 (90 ± 5%) and AOX (55 ± 14%). However, the anaerobic treatment did not achieve acceptable removal of UV254 compounds. Furthermore, there was an increase of lignin, measured as total phenols. The H2O2/UV post-treatment provided a wide range of removal efficiencies depending on the dosage of hydrogen peroxide and UV irradiation: COD ranged from 0 to 11%, UV254 from 16 to 35%, lignin from 0 to 29% and AOX from 23 to 54%. All peroxide dosages applied in this work promoted an increase in the BOD5/COD ratio of the wastewater. The experiments demonstrate the technical feasibility of using H2O2/UV for post-treatment of bleaching effluents submitted to anaerobic pre-treatment.

Titel:	Advanced oxidation process H2O2/UV combined with anaerobic digestion to remove chlorinated organics from bleached kraft pulp mill wastewater
Autor/in / Beteiligte Person:	BOTELHO RUAS, Diego ; RODRIGUEZ CHAPARRO, Tatiana ; CLETO PIRES, Eduardo
Link:	Volltext (PDF) View record from PASCAL Archive
Zeitschrift:	Revista Facultad de Ingeniería Universidad de Antioquia, 2012, Heft 63, S. 43-54
Veröffentlichung:	Medellín: Facultad de Ingeniería. Universidad de Antioquia, 2012
Medientyp:	academicJournal
Umfang:	print, 29 ref
ISSN:	0120-6230 (print)
Schlagwort:	Mechanical engineering Génie mécanique Science technology, industry Sciences et technologies, industries Sciences exactes et technologie Exact sciences and technology Sciences appliquees Applied sciences Pollution Traitement et pollution des eaux Water treatment and pollution Eaux usées Wastewaters Procédés généraux d'épuration General purification processes Sciences biologiques et medicales Biological and medical sciences Sciences biologiques fondamentales et appliquees. Psychologie Fundamental and applied biological sciences. Psychology Biotechnologie Biotechnology Applications et implications industrielles. Aspects économiques Industrial applications and implications. Economical aspects Environnement et pollution Environment and pollution Epuration biologique des eaux Biological treatment of waters Anaérobie Anaerobe Anaerobio Biodégradabilité Biodegradability Biodegradabilidad Biomasse Biomass Biomasa Blanchiment Bleaching Blanqueado DBO Biological oxygen demand DCO Chemical oxygen demand Digestion anaérobie Anaerobic digestion Digestión anaerobia Eau usée Waste water Agua residual Effluent Efluente Epuration eau usée Waste water purification Depuración aguas servidas Etude expérimentale Experimental study Estudio experimental Faisabilité Feasibility Practicabilidad Immobilisation Immobilization Inmovilización Industrie papier Paper industry Industria papel Matière organique Organic matter Materia orgánica Oxydation Oxidation Oxidación Peroxyde d'hydrogène Hydrogen peroxide Peróxido de hydrogeno Qualité eau Water quality Calidad agua Rayonnement UV Ultraviolet radiation Radiación ultravioleta Réacteur lit fixe Fixed bed reactor Reactor lecho fijo Résistance traitement Treatment resistance Resistencia tratamiento AOX Advanced oxidation process biodegradability ratio bleaching effluents recalcitrant organic matter
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Hydraulics and Sanitary Engineering Department. School of Engineering of São Carlos. University of São Paulo. Av. Trabalhador Saocarlense, N° 400. Zip code, 13566-590. São Carlos - SP, Brazil ; Civil Engineering Department. Military University. Cra. 11 N° 101-80, Bogotá, Colombia Rights: Copyright 2015 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Biotechnology ; Pollution

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