Treatment of septage using single and two stage activated sludge batch reactors systems

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dc.contributor.author Andreadakis, AD en
dc.contributor.author Kondili, G en
dc.contributor.author Mamais, D en
dc.contributor.author Noussi, A en
dc.date.accessioned 2014-03-01T02:41:08Z
dc.date.available 2014-03-01T02:41:08Z
dc.date.issued 1995 en
dc.identifier.issn 0273-1223 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/30381
dc.subject Cyclic batch activated sludge systems en
dc.subject Denitrification en
dc.subject Nitrification en
dc.subject Septage en
dc.subject Sequencing batch reactors en
dc.subject Two stage treatment en
dc.subject.classification Engineering, Environmental en
dc.subject.classification Environmental Sciences en
dc.subject.classification Water Resources en
dc.subject.other Anoxic cycles en
dc.subject.other Cesspools en
dc.subject.other Cyclic batch activated sludge systems en
dc.subject.other Septage en
dc.subject.other Septage treatment en
dc.subject.other Sequencing batch reactors en
dc.subject.other Two stage treatment en
dc.subject.other Bioreactors en
dc.subject.other Chemical oxygen demand en
dc.subject.other Denitrification en
dc.subject.other Nitrates en
dc.subject.other Nitrification en
dc.subject.other Nitrogen en
dc.subject.other Reduction en
dc.subject.other Wastewater treatment en
dc.subject.other Activated sludge process en
dc.subject.other nitrate en
dc.subject.other nitrogen en
dc.subject.other activated sludge en
dc.subject.other aeration en
dc.subject.other biodegradation en
dc.subject.other bioreactor en
dc.subject.other chemical oxygen demand en
dc.subject.other conference paper en
dc.subject.other denitrification en
dc.subject.other nitrification en
dc.subject.other waste water management en
dc.title Treatment of septage using single and two stage activated sludge batch reactors systems en
heal.type conferenceItem en
heal.identifier.primary 10.1016/0273-1223(96)00080-7 en
heal.identifier.secondary http://dx.doi.org/10.1016/0273-1223(96)00080-7 en
heal.language English en
heal.publicationDate 1995 en
heal.abstract The cyclic or sequencing batch activated sludge process was applied for the treatment of septage originating from cesspools serving non-sewered areas. Single and two stage systems were investigated in bench scale units. The single stage aerated system was capable in removing practically all the biodegradable COD and producing a well stabilised excess sludge with excellent settling and thickening characteristics. With respect to nitrogen the average removal rate was to the order of 70%, but the performance was unstable due to periodic strong inhibition of the nitrification process. Subsequent treatment in a second stage aerated unit improved nitrification but did not result in higher nitrogen removal rates due to the increased concentrations of oxidised nitrogen, An anoxic second stage post denitrification unit resulted in an overall nitrogen removal of 88%, through a substantial reduction of nitrates. Further improvement of the system, with nitrogen removal of about 95% and average effluent nitrogen concentrations lower than 10 mg.l(-1), can be achieved by adoption of a two stage system consisting of a first aerated stage unit, followed by a second stage unit with alternating aerated and anoxic cycles and addition of external carbon during the anoxic cycle. en
heal.journalName Water Science and Technology en
dc.identifier.doi 10.1016/0273-1223(96)00080-7 en
dc.identifier.isi ISI:A1995UC24000013 en
dc.identifier.volume 32 en
dc.identifier.issue 9-10 en
dc.identifier.spage 95 en
dc.identifier.epage 104 en

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