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Combined treatment of landfill leachate and domestic sewage in a sequencing batch reactor

Diamantopoulos Evaggelos, Samaras Peter, Dabou X., Sakellaropoulos George P.

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URIhttp://purl.tuc.gr/dl/dias/214EB480-3C2B-4009-B399-293485838193-
Identifierhttps://doi.org/10.1016/S0273-1223(97)00370-3-
Identifierhttp://www.sciencedirect.com/science/article/pii/S0273122397003703-
Languageen-
Extent8 pagesen
TitleCombined treatment of landfill leachate and domestic sewage in a sequencing batch reactoren
CreatorDiamantopoulos Evaggelosen
CreatorΔιαμαντοπουλος Ευαγγελοςel
CreatorSamaras Peteren
CreatorDabou X.en
CreatorSakellaropoulos George P. en
PublisherElsevieren
Content SummaryA study was undertaken to examine the feasibility of biologically treating a combined waste stream of landfill leachate and municipal sewage. The ratio of sewage to leachate was 9 to 1 by volume. The combined waste had an average BOD5 430 mg/l, COD 1090 mg/l, and TKN 133 mg/l (80% of which was in the form of ammonia). A laboratory-scale sequencing batch activated sludge reactor was used to carry comparative performance evaluations of biological treatment, including nitrification and denitrification. The SBR reactor was operating in daily time cycles employing the following sequential operation phases: filling phase, anoxic phase, aeration reaction phase, settling phase, and drain phase. In particular, the anoxic and aeration periods were tailored in order to develop conditions conducive to desired nitrification and denitrification. During the reaction period, the process was operated under an extended aeration mode with the MLSS concentration being around 3500 mg/l. The results indicated that successful biotreatment of combined leachate and sewage was possible, with the trealed effluent being low in BOD5 and COD. The system was capable of BODS removal efficiencies exceeding 95%. Furthermore, nitrate removal during the anoxic phase was approximately 99% due to denitrification. However, the overall nitrogen removal during a full cycle was about 50%. The inclusion of an anoxic period right after the aeration phase enhanced the nitrogen removal efficiency, yet this phase required the addition of an external carbon source to the reactor due to the low concentration of biodegradable carbon, and at the same time the process became less efficient in BOD removal.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-18-
Date of Publication1997-
SubjectDomestic effluenten
SubjectDomestic sewageen
SubjectDomestic wastewateren
SubjectEffluent (Sewage)en
SubjectIndustrial effluenten
SubjectIndustrial wastewateren
SubjectSewage effluenten
SubjectWaste wateren
SubjectWaste watersen
SubjectWastewateren
SubjectWastewatersen
Subjectsewageen
Subjectdomestic effluenten
Subjectdomestic sewageen
Subjectdomestic wastewateren
Subjecteffluent sewageen
Subjectindustrial effluenten
Subjectindustrial wastewateren
Subjectsewage effluenten
Subjectwaste wateren
Subjectwaste watersen
Subjectwastewateren
Subjectwastewatersen
Bibliographic CitationE. Diamadopoulos, P. Samaras, X. Dabou and G.P. Sakellaropoulos, "Combined treatment of landfill leachate and domestic sewage in a sequencing batch reactor," Water Sci. Technol., vol. 36, no. 2-3, pp. 61-68, 1997. doi: 10.1016/S0273-1223(97)00370-3en

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