Modelling of oxidation ditches using an open channel flow 1-D advection-dispersion equation and ASM1 process description

Stamou, AI

dc.contributor.author	Stamou, AI	en
dc.date.accessioned	2014-03-01T02:41:29Z
dc.date.available	2014-03-01T02:41:29Z
dc.date.issued	1997	en
dc.identifier.issn	0273-1223	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30480
dc.subject	ASM1 model	en
dc.subject	Dispersion	en
dc.subject	DO control	en
dc.subject	Mathematical models	en
dc.subject	Oxidation ditches	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Water Resources	en
dc.subject.other	Activated sludge model	en
dc.subject.other	Convection dispersion equations	en
dc.subject.other	Dissolved oxygen (DO)	en
dc.subject.other	Oxidation ditches	en
dc.subject.other	Plug flow	en
dc.subject.other	Activated sludge process	en
dc.subject.other	Bioreactors	en
dc.subject.other	Composition effects	en
dc.subject.other	Computer aided analysis	en
dc.subject.other	Control systems	en
dc.subject.other	Denitrification	en
dc.subject.other	Mathematical models	en
dc.subject.other	Nitrification	en
dc.subject.other	Open channel flow	en
dc.subject.other	Oxidation	en
dc.subject.other	Process control	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Water quality	en
dc.subject.other	river water	en
dc.subject.other	activated sludge	en
dc.subject.other	conference paper	en
dc.subject.other	denitrification	en
dc.subject.other	dispersion	en
dc.subject.other	mathematical model	en
dc.subject.other	nitrification	en
dc.subject.other	oxidation	en
dc.subject.other	prediction	en
dc.subject.other	waste water management	en
dc.subject.other	water quality	en
dc.title	Modelling of oxidation ditches using an open channel flow 1-D advection-dispersion equation and ASM1 process description	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/S0273-1223(97)00483-6	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0273-1223(97)00483-6	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	A river water quality model is presented for the prediction of the concentration fields of the water quality variables in an oxidation ditch performing carbon oxidation, nitrification and denitrification, The model involves the one-dimensional convection-dispersion equations for all the variables, which are described in the IAWPRC Activated Sludge Model No 1. The model is applied to a typical oxidation ditch to show that all variables, with the exception of DO, are uniformly distributed in the ditch; thus permitting the characterisation of the oxidation ditch as a completely mixed reactor. The DO concentration, which controls the reaction rates of almost all the processes, shows a plug flow behaviour. The potential of the present model to be used to improve the DO control system of the ditch and to perform real time predictions is also demonstrated. All calculations have been performed with a PC. (C) 1997 IAWQ. Published by Elsevier Science Ltd.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Water Science and Technology	en
dc.identifier.doi	10.1016/S0273-1223(97)00483-6	en
dc.identifier.isi	ISI:A1997YL20000031	en
dc.identifier.volume	36	en
dc.identifier.issue	5	en
dc.identifier.spage	269	en
dc.identifier.epage	276	en