Domestic wastewater treatment using immobilized sludge fluidized-bed reactors

AN, M ; LO, K. V

In: Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, Jg. 36 (2001), Heft 5, S. 819-831

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Bench-scale fluidized-bed reactors using the immobilized activated sludge process were studied for the treatment of domestic wastewater. Different intermittent aeration patterns were investigated in order to improve the total nitrogen (TN) removal. The best TN removal at 74.4% was achieved at an HRT of 6 hours (with corresponding BOD loading rate of 0.766 kg/m3/d) and an aeration-pattern of 1.3 (the hours of aeration and non-aeration time cycle). The removal efficiencies for organic carbon, NH4+-N, TKN and TSS were not affected and remained at more than 90%. Simultaneous organic carbon and nitrogen removal was accomplished in a single immobilized sludge reactor. The impact of various influent feed patterns on the treatment was examined. The continuous feed pattern was recommended as it ensured good TN removal without any adverse impacts on the removal of organic carbon, NH4+-N, TKN and TSS. The immobilized sludge beads exhibited satisfactory mechanical stability without apparent breakage over the 180-day experiment period.

Titel:	Domestic wastewater treatment using immobilized sludge fluidized-bed reactors
Autor/in / Beteiligte Person:	AN, M ; LO, K. V
Link:	View record from PASCAL Archive
Zeitschrift:	Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, Jg. 36 (2001), Heft 5, S. 819-831
Veröffentlichung:	Philadelphia, PA: Taylor&Francis, 2001
Medientyp:	academicJournal
Umfang:	print, 11 ref
ISSN:	1093-4529 (print)
Schlagwort:	Ecology Ecologie Environment Environnement Pollution Sciences exactes et technologie Exact sciences and technology Sciences appliquees Applied sciences Traitement et pollution des eaux Water treatment and pollution Eaux usées Wastewaters Eaux usées de toute autre origine Other wastewaters 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 Alginate Alginates Alginato Ammonium Amonio Azote Composé Nitrogen Compounds Nitrógeno Compuesto Aération Aeration Aeración Bioréacteur Bioreactor Biorreactor Borate Borates Borato Boue activée Activated sludge Lodo activado Carbone organique total Total organic carbon Carbono orgánico total DBO Biological oxygen demand Dénitrification Denitrification Desnitrificación Eau usée domestique Domestic waste water Agua residual doméstica Epuration biologique Biological purification Depuración biológica Epuration eau usée Waste water purification Depuración aguas servidas Immobilisation Immobilization Inmovilización Réacteur lit fluidisé Fluidized bed reactor Reactor lecho fluidizado Vinylique alcool polymère Polyvinylalcohol Vinílico alcohol polímero
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Department of Chemical and Biological Engineering, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z4, United States Rights: Copyright 2001 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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