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Representative and fast monitoring of wastewater influent and effluent biochemical oxygen demand (BOD) is an elusive goal for the wastewater industry and regulatory bodies alike. The present study describes a suitable assay, which incorporates activated sludge as the biocatalyst and ferricyanide as the terminal electron acceptor for respiration. A number of different sludges and sludge treatments were investigated, primarily to improve the sensitivity of the assay. A limit of detection (LOD) (2.1 mg BOD5 L―1) very similar to that of the standard 5-day BOD5 method was achieved in 4 h using raw influent sludge that had been cultured overnight as the biocatalyst. Reducing the microbial concentration was the most effective means to improve sensitivity and reduce the contribution of the sludge's endogenous respiration to total ferricyanide-mediated (FM) respiration. A strong and highly significant relationship was found (n = 33; R = 0.96; p < 0.001; slope = 0.94) between BOD5 and FM-BOD equivalent values for a diverse range of samples including wastewater treatment plant (WWTP) influent and treated effluent, as well as several grey water samples. The activated sludge FM-BOD assay presented here is an exceptional surrogate method to the standard BOD5 assay, providing representative, same-day BOD analysis of WWTP samples with a comparable detection limit, a 4-fold greater analytical range and much faster analysis time. The industry appeal of such an assay is tremendous given that ∼90% of all BOD5 analysis is dedicated to measurement of WWTP samples, for which this assay is specifically designed.

Titel:	A sensitive ferricyanide-mediated biochemical oxygen demand assay for analysis of wastewater treatment plant influents and treated effluents
Autor/in / Beteiligte Person:	JORDAN, Mark A ; WELSH, David T ; JOHN, Richard ; CATTERALL, Kylie ; TEASDALE, Peter R
Link:	E-Journal im Bestand der UB Hagen? View record from PASCAL Archive
Zeitschrift:	Water research (Oxford), Jg. 47 (2013), Heft 2, S. 841-849
Veröffentlichung:	Kidlington: Elsevier, 2013
Medientyp:	academicJournal
Umfang:	print, 1 p.1/4
ISSN:	0043-1354 (print)
Schlagwort:	Biotechnology Biotechnologies 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 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 Boue activée Activated sludge Lodo activado Chronoampérométrie Chronoamperometry Cronoamperimetría DBO Biological oxygen demand Eau ménagère Domestic water Agua doméstica Eau usée domestique Domestic waste water Agua residual doméstica Eau usée Waste water Agua residual Effluent Efluente Epuration biologique Biological purification Depuración biológica Epuration eau usée Waste water purification Depuración aguas servidas Hexacyanoferrate III Hexacyanoferrates III Hexacianoferrato III Méthode contrôle Control method Método control Station épuration Sewage treatment plant Estación depuradora BOD5 assay Ferricyanide-mediated biochemical oxygen demand (FM-BOD) Grey water Wastewater
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Environmental Futures Centre, Griffith University, Gold Coast campus, Qld 4222, Australia ; School of Environment, Griffith University, Gold Coast campus, Qld 4222, Australia ; Gold Coast Water, PO Box 5042, Gold Coast Mail Centre, Qld 9729, Australia Rights: Copyright 2014 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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A sensitive ferricyanide-mediated biochemical oxygen demand assay for analysis of wastewater treatment plant influents and treated effluents