An alternative approach of UASB dynamic modeling

Vlyssides, A; Barampouti, EM; Mai, S

dc.contributor.author	Vlyssides, A	en
dc.contributor.author	Barampouti, EM	en
dc.contributor.author	Mai, S	en
dc.date.accessioned	2014-03-01T01:25:53Z
dc.date.available	2014-03-01T01:25:53Z
dc.date.issued	2007	en
dc.identifier.issn	0001-1541	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17792
dc.subject	Anaerobic digestion	en
dc.subject	Biological reactions	en
dc.subject	Dynamic model	en
dc.subject	Physicochemical reactions	en
dc.subject	Thermodynamic data	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Anaerobic digestion	en
dc.subject.other	Computation theory	en
dc.subject.other	Mathematical models	en
dc.subject.other	Synthesis (chemical)	en
dc.subject.other	Biological reactions	en
dc.subject.other	Dynamic model	en
dc.subject.other	Physicochemical reactions	en
dc.subject.other	Thermodynamic data	en
dc.subject.other	Chemical reactors	en
dc.subject.other	Anaerobic digestion	en
dc.subject.other	Chemical reactors	en
dc.subject.other	Computation theory	en
dc.subject.other	Mathematical models	en
dc.subject.other	Synthesis (chemical)	en
dc.title	An alternative approach of UASB dynamic modeling	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/aic.11342	en
heal.identifier.secondary	http://dx.doi.org/10.1002/aic.11342	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	A mathematical model was developed and validated to simulate the dynamic behavior of a UASB reactor. This model took into consideration all the biological and physicochemical reactions. Seven microbial populations were selected using Monod kinetics where inhibition terms were added. The overall biological reactions were determined by first evaluating the reactions for energy and synthesis separately and then adding them together. For each differential time interval, the biomass produced was estimated from the stoichiometry of these reactions. The feasibility of each reaction was determined by thermodynamic calculations. A thermodynamic solution was suggested for the microorganisms that are able to follow more than one catabolic routes and produce several products in spite of the fact that they consume just one substrate. All the reactions that may be performed were realized according to the relative percentage of their free energies. The validation of the model was based on a set of dynamical experiments designed to cover a wide spectrum of operating conditions that are likely to take place in the practical Operation of a UASB plant. The model can be a useful tool for the prediction of process performance in transient conditions, even in failure, and can be used to assist in the operation of biogas plants. 9 2007 American Institute of Chemical Engineers AIChE J, 53: 32693276,2007.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	AIChE Journal	en
dc.identifier.doi	10.1002/aic.11342	en
dc.identifier.isi	ISI:000251200400023	en
dc.identifier.volume	53	en
dc.identifier.issue	12	en
dc.identifier.spage	3269	en
dc.identifier.epage	3276	en