Nitrification-denitrification and activated sludge settlement

Andreadakis, AD

dc.contributor.author	Andreadakis, AD	en
dc.date.accessioned	2014-03-01T01:09:28Z
dc.date.available	2014-03-01T01:09:28Z
dc.date.issued	1993	en
dc.identifier.issn	0959-3330	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11009
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027305785&partnerID=40&md5=ca479d785f02c542e71dec3c7301b87a	en
dc.subject	Activated sludge	en
dc.subject	Denitrification	en
dc.subject	Nitrification	en
dc.subject	Sludge settlement	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	carbon	en
dc.subject.other	nitrate	en
dc.subject.other	nitrogen	en
dc.subject.other	activated sludge	en
dc.subject.other	article	en
dc.subject.other	denitrification	en
dc.subject.other	greece	en
dc.subject.other	nitrification	en
dc.subject.other	sewage	en
dc.subject.other	sludge settling	en
dc.subject.other	temperature	en
dc.subject.other	theory	en
dc.subject.other	waste water management	en
dc.title	Nitrification-denitrification and activated sludge settlement	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	Bench scale activated sludge units, fed with sewage from the main sewer of Athens, were used to study the biological removal of nitrogen. Nitrification and denitrification rates for different solids retention times, temperatures and carbon to nitrogen ratios were measured. A solids retention time of eight days was found to be adequate for complete nitrification throughout the year. Sludge settling characteristics, in terms of dilute sludge volume index, DSVI, were correlated to the concentrations of nitrates in the effluent. Due to the lower concentration of nitrates, the denitrifying activated sludge had better settling characteristics. Zone settling velocity measurements were used to determine values for the constants incorporated in the flux theory. Application of this theory indicated that a substantial reduction of the area of the final clarifier may be realized with a nitrification-denitrification system.	en
heal.publisher	SELPER LTD, PUBLICATIONS DIV	en
heal.journalName	Environmental Technology	en
dc.identifier.isi	ISI:A1993LM50600002	en
dc.identifier.volume	14	en
dc.identifier.issue	7	en
dc.identifier.spage	615	en
dc.identifier.epage	627	en