Ethanol addition as a strategy for start-up and acclimation of an AnSBBR for the treatment of landfill leachate

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorContrera, Ronan Cleber
dc.creatorSarti, Arnaldo
dc.creatorCastro, Marcus César Avezum Alves de
dc.creatorForesti, Eugenio
dc.creatorZaiat, Marcelo
dc.creatorSchalch, Valdir
dc.date2014-05-27T11:30:39Z
dc.date2016-10-25T18:53:55Z
dc.date2014-05-27T11:30:39Z
dc.date2016-10-25T18:53:55Z
dc.date2013-09-05
dc.date.accessioned2017-04-06T02:38:31Z
dc.date.available2017-04-06T02:38:31Z
dc.identifierProcess Biochemistry.
dc.identifier1359-5113
dc.identifierhttp://hdl.handle.net/11449/76525
dc.identifierhttp://acervodigital.unesp.br/handle/11449/76525
dc.identifier10.1016/j.procbio.2013.08.004
dc.identifierWOS:000327920600021
dc.identifier2-s2.0-84883242922
dc.identifier0000-0001-7288-8553
dc.identifierhttp://dx.doi.org/10.1016/j.procbio.2013.08.004
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/897220
dc.descriptionThis study evaluated the ethanol addition as a strategy for start-up and acclimation of a pilot scale (1300 L) anaerobic sequencing batch biofilm reactor (AnSBBR) for the treatment of municipal landfill leachate with seasonal biodegradability variations. The treatment was carried out at ambient temperature (23.8 ± 2.1 °C) in the landfill area. In a first attempt, the leachate collected directly from landfill showed to be predominantly recalcitrant to anaerobic treatment and the acclimation was not possible. In a second attempt, adding ethanol to leachate, the reactor was successfully acclimated. After acclimation, without ethanol addition, the CODTotal influent ranged from 4970 to 13040 mg L-1 and the removal efficiencies ranged from 12.1% to 70.7%. A final test was carried out increasing the ammonia and free-ammonia concentration from 2486 mgN L-1 and 184 mgN L-1 to 4519 mgN L-1 and 634 mgN L-1, respectively, with no expressive inhibition verified. The start-up strategy was found to be feasible, providing the acclimation of the biomass in the AnSBBR, and maintaining the biomass active even when the leachate was recalcitrant. © 2013 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.relationProcess Biochemistry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAcclimation
dc.subjectAnaerobic sequencing batch biofilm reactors
dc.subjectEthanol addition
dc.subjectLandfill leachate
dc.subjectStart-up strategy
dc.titleEthanol addition as a strategy for start-up and acclimation of an AnSBBR for the treatment of landfill leachate
dc.typeOtro


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