Performance relationship for low and intermediate rate biological filters

Christoulas, DG; Liakos, SN; Andreadakis, AD

dc.contributor.author	Christoulas, DG	en
dc.contributor.author	Liakos, SN	en
dc.contributor.author	Andreadakis, AD	en
dc.date.accessioned	2014-03-01T01:08:06Z
dc.date.available	2014-03-01T01:08:06Z
dc.date.issued	1990	en
dc.identifier.issn	0043-1354	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10275
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Water Resources	en
dc.subject.other	Biological Filters	en
dc.subject.other	Fixed Film Reactors	en
dc.subject.other	Mathematical Models	en
dc.subject.other	Water Filtration	en
dc.subject.other	Wastewater Treatment	en
dc.subject.other	article	en
dc.subject.other	bioengineering	en
dc.subject.other	economic aspect	en
dc.subject.other	filter	en
dc.subject.other	filtration	en
dc.subject.other	flow	en
dc.subject.other	mathematical model	en
dc.subject.other	waste water treatment plant	en
dc.title	Performance relationship for low and intermediate rate biological filters	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0043-1354(90)90193-A	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0043-1354(90)90193-A	en
heal.language	English	en
heal.publicationDate	1990	en
heal.abstract	A steady-state mathematical model of the biological filter without recirculation was developed with the aid of qualitative and quantitative theoretical considerations and empirical assumptions. The model was calibrated and validated with the aid of performance data from 2 two-stage pilot-scale filters operated in parallel in the range of the low and intermediate overflow rates (1-8 m d-1). Due to the controlled operation of the pilot plant, the derived performance relationship should be considered as describing the performance of biological filters with favourable ''secondary factors'', that is, with good primary and final settling, effective distribution system and appropriate dosing regime. The performance relationship was found to be in good agreement with published pilot-scale data and also with performance data from full-scale filters characterized by relatively high efficiency which might be attributed to favourable secondary factors. Supposing that the secondary factors can be fairly easily optimized, the biological filter may have significant economical advantage over the activated sludge system, even for high BOD removal efficiencies.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Water Research	en
dc.identifier.doi	10.1016/0043-1354(90)90193-A	en
dc.identifier.isi	ISI:A1990DL99600010	en
dc.identifier.volume	24	en
dc.identifier.issue	5	en
dc.identifier.spage	607	en
dc.identifier.epage	614	en