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PROCESS PERFORMANCE ASSESSMENT OF ADVANCED ANAEROBIC DIGESTION OF SEWAGE SLUDGE INCLUDING SEQUENTIAL ULTRASOUND-THERMAL (55 °C) PRE-TREATMENT

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dc.creatorPATRICIO ALEJANDRO NEUMANN LANGDON
dc.date2018
dc.date.accessioned2025-01-10T15:00:25Z
dc.date.available2025-01-10T15:00:25Z
dc.date.issued2018
dc.description.abstractTHE AIM OF THIS STUDY WAS TO EVALUATE THE PERFORMANCE AND DIGESTATE QUALITY OF ADVANCED ANAEROBIC DIGESTION OF SEWAGE SLUDGE INCLUDING SEQUENTIAL ULTRASOUND?THERMAL (55?°C) PRE-TREATMENT. BOTH STAGES OF PRE-TREATMENT CONTRIBUTED TO CHEMICAL OXYGEN DEMAND (COD) SOLUBILIZATION, WITH AN OVERALL FACTOR OF 11.4?±?2.2%. PRE-TREATMENT LED TO 19.1, 24.0 AND 29.9% INCREASED METHANE YIELDS AT 30, 15 AND 7.5?DAYS SOLID RETENTION TIMES (SRT), RESPECTIVELY, WITHOUT AFFECTING PROCESS STABILITY OR ACCUMULATION OF INTERMEDIATES. PRE-TREATMENT DECREASED UP TO 4.2% WATER RECOVERY FROM THE DIGESTATE, BUT SRT WAS A MORE RELEVANT FACTOR CONTROLLING DEWATERING. ADVANCED DIGESTION SHOWED 2.4?3.1 AND 1.5 LOGARITHMIC REMOVALS OF COLIFORMS AND COLIPHAGES, RESPECTIVELY, AND UP TO A 58% INCREASE IN THE CONCENTRATION OF INORGANICS IN THE DIGESTATE SOLIDS COMPARED TO CONVENTIONAL DIGESTION. THE COD BALANCE OF THE PROCESS SHOWED THAT THE OBSERVED INCREASE IN METHANE PRODUCTION WAS PROPORTIONAL TO THE PRE-TREATMENT SOLUBILIZATION EFFICIENCY.
dc.formatapplication/pdf
dc.identifier.doi10.1016/j.biortech.2018.03.057
dc.identifier.issn1873-2976
dc.identifier.issn0960-8524
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/9970
dc.languagespa
dc.publisherBIORESOURCE TECHNOLOGY
dc.relation.uri10.1016/j.biortech.2018.03.057
dc.rightsPUBLICADA
dc.titlePROCESS PERFORMANCE ASSESSMENT OF ADVANCED ANAEROBIC DIGESTION OF SEWAGE SLUDGE INCLUDING SEQUENTIAL ULTRASOUND-THERMAL (55 °C) PRE-TREATMENT
dc.title.alternativeEVALUACIÓN DEL RENDIMIENTO DEL PROCESO DE DIGESTIÓN ANAERÓBICA AVANZADA DE LODOS DE DEPURADORA, INCLUIDO EL PRETRATAMIENTO SECUENCIAL DE ULTRASONIDO TÉRMICO (55 °C)
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.SedeCHILLÁN
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