Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1669
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dc.contributor.authorPatroescu, Viorel Ionen_US
dc.contributor.authorDinu, Laurentiu Razvanen_US
dc.contributor.authorStefanescu, Mihaien_US
dc.contributor.authorBadescu, Valeriuen_US
dc.contributor.authorCristea, Ionuten_US
dc.contributor.authorMartin, Colineen_US
dc.date.accessioned2020-10-21T14:40:19Z-
dc.date.available2020-10-21T14:40:19Z-
dc.date.issued2020-10-
dc.identifier.urihttp://hdl.handle.net/123456789/1669-
dc.descriptionRomanian Journal of Ecology & Environmental Chemistry, vol. 2, no. 2, 2020, p. 17-21en_US
dc.description.abstractThe municipal wastewater treatment is the source of significant amounts of primary and secondary sludge, which is under the present legislation referring to quality and management aspects. It is estimated that half of wastewater treatment plant costs are due to the sludge management. Anaerobically sludge stabilization, capitalization as an energy source, to diminish the costs and sludge volume decreasing, are the aims of the main operational steps of sludge treatment, as a part of wastewater treatment plant. The improvement of sludge anaerobically stabilization process must be possible by acting in the rate-limiting step - hydrolysis to rise the organic carbon solubilization. The increase of soluble carbon can be possible by adding a pretreatment step of waste biological sludge, ultrasonic disintegration being one option. This paper emphasized the experimental results regarding anaerobically stabilization of the thickened waste biological sludge by ultrasonication taking into account the results of the blank test, without ultrasonication. Experimental tests show that ultrasonic disintegration of the sludge having initial dried substances content (d.w) 2.72% and soluble organic load COD of 598 mg O2/L led to soluble COD concentration of 4950-6710 mg O2/L after sonication with a specific energy in the range of 3.06 - 14.24 kWh/kg d.w. Anaerobically stabilization during 25 test days at 36°C of the mixture 40% disintegrated biological sludge and 60% digested sludge (inoculum) mixture led to 30-38.6% increase of biogas production comparing with parallel test with non-sonicated sludge.en_US
dc.language.isoenen_US
dc.publisherNational Research and Development Institute for Industrial Ecology, INCD-ECOINDen_US
dc.subjectWaste activated sludgeen_US
dc.subjectUltrasonic disintegrationen_US
dc.subjectAnaerobically sludge digestionen_US
dc.subjectBiogas productionen_US
dc.titleApplication of ultrasonic disintegration to waste activated sludge for increasing of biogas production by anaerobic digestionen_US
dc.typeArticleen_US
dc.contributor.affiliationNational Research and Development Institute for Industrial Ecology, ECOINDen_US
dc.contributor.affiliationNational Research and Development Institute for Industrial Ecology, ECOINDen_US
dc.contributor.affiliationNational Research and Development Institute for Industrial Ecology, ECOINDen_US
dc.contributor.affiliationNational Research and Development Institute for Industrial Ecology, ECOINDen_US
dc.contributor.affiliationNational Research and Development Institute for Industrial Ecology, ECOINDen_US
dc.contributor.affiliationUniversité Toulouse II-IUT “A” Paul Sabatier, Franceen_US
item.fulltextWith Fulltext-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.deptNational Research and Development Institute for Industrial Ecology, INCD-ECOIND-
crisitem.author.deptNational Research and Development Institute for Industrial Ecology, ECOIND-
crisitem.author.deptNational Research and Development Institute for Industrial Ecology, INCD-ECOIND-
crisitem.author.deptNational Research and Development Institute for Industrial Ecology, INCD-ECOIND-
crisitem.author.deptUniversité Toulouse II-IUT “A” Paul Sabatier-
crisitem.author.orcid0000-0001-8042-7327-
crisitem.author.orcid0000-0001-9681-9691-
crisitem.author.orcid0000-0003-1203-2205-
crisitem.author.orcid0000-0003-1147-5928-
Appears in Collections:RJEEC, Volume 2, no. 2, 2020
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