Show simple item record

dc.contributor.authorGerosa, B.F.
dc.contributor.authorRatusznei, Suzana Maria
dc.contributor.authorRodrigues, José Alberto Domingues
dc.contributor.authorZaiat, Marcelo
dc.date.accessioned2024-10-11T16:25:43Z
dc.date.available2024-10-11T16:25:43Z
dc.date.issued2015
dc.identifier.citationAdv. in Environ. Res.
dc.identifier.isbn978-163482912-0
dc.identifier.isbn978-163482886-4
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84959159629&partnerID=40&md5=320310261f3d71d00c6b2c97ed4baf3d
dc.identifier.urihttps://repositorio.maua.br/handle/MAUA/799
dc.description.abstractAn anaerobic sequencing fed-batch reactor (7.2 L) with recirculation of the liquid phase containing immobilized biomass (AnSBBR) was used to produce biohydrogen from the treatment of glucose-based wastewater, at 30°C. The effect of applied volumetric organic load (AVOL) on biohydrogen production was analyzed by varying influent concentration between 3600 and 5250 mgCOD.L-1, cycle lengths of 4, 3 and 2 h, and feeding times of 2, 1.5 and 1 h, resulting in AVOL of 10.4; 13.2; 15.9; 21.5; 21.7 and 31.1 gCOD.L-1.d-1. For concentration at 5250 mgCOD.L-1, cycle length of 3 h and feeding time of 1.5 h the AnSBBR was operated at 30 and 40°C. Removal of organic matter (COD) ranged from 19 to 23% and of carbohydrates (glucose) from 96 to 99%. Volumetric and specific molar productivity were 81.4 molH2.m-3.d-1 and 7.1 molH2.kgSVT-1.d-1 at 31.1 gCOD.L-1.d-1 (5250 mgCOD.L-1 and 2 h) and the yield between the produced hydrogen and removed organic matter in terms of carbohydrates was 0.76molH2.molGLU-1 at 19.9 gCOD.L-1.d-1 (5250 mgCOD.L-1 and 3 h at 40°C). The most significant metabolic compounds were ethanol and acetic acid. Comparison of the biohydrogen production indicators, of fed-batch and batch operation at the same conditions, reveals the values of fed-batch operation were lower for all indicators at conditions with 3600 and 5250 mgCOD.L-1 and 4 and 3 h cycle lengths. However, the condition with the highest AVOL (31.1 gCOD.L-1.d-1), the condition with the highest concentration (5250 mgCOD.L-1.d-1) and highest temperature (40 °C) showed higher values for all indicators when compared to those obtained for batch mode. Thus, batch operation performs better for AVOL up to 21.7 mgCOD.L-1.d-1. For applied volumetric organic loads exceeding 21.7 gCOD.L-1.d-1, fed-batch operation resulted in improved reactor performance, indicating that this configuration was more suitable. Thus, at higher organic loads gradual availability of the substrate allow for better results in terms of molar and specific hydrogen productivity. © 2015 by Nova Science Publishers, Inc. All rights reserved.en
dc.languageInglêspt_BR
dc.publisherNova Science Publishers, Inc.en
dc.relation.ispartofAdvances in Environmental Research
dc.rightsAcesso Restrito
dc.sourceScopusen
dc.subjectAnSBBRen
dc.subjectBiohydrogenen
dc.subjectCycle lengthen
dc.subjectInfluent concentrationen
dc.subjectLiquid circulationen
dc.subjectOrganic loadingen
dc.subjectBatch reactorsen
dc.subjectBiogeochemistryen
dc.subjectBiological materialsen
dc.subjectCarbohydratesen
dc.subjectGlucoseen
dc.subjectHydrogen productionen
dc.subjectOrganic compoundsen
dc.subjectProductivityen
dc.subjectAnSBBRen
dc.subjectBio-hydrogenen
dc.subjectCycle lengthen
dc.subjectInfluent concentrationsen
dc.subjectLiquid circulationen
dc.subjectOrganic loadingsen
dc.subjectWastewater treatmenten
dc.titleInfLuence of Organic Load, Fill Time and Cycle Length on Biohydrogen Production in an Ansbbr Treating Glucose-Based Wastewateren
dc.typeCapítulo de Livropt_BR
dc.description.affiliationEscola de Engenharia Mauá, Instituto Mauá de Tecnologia (IMT), Brazilpt_BR
dc.description.affiliationEscola de Engenharia de São Carlos, Universidade de São Paulo (USP), Brazilpt_BR
dc.identifier.scopus2-s2.0-84959159629pt_BR
dc.citation.epage111.0
dc.citation.spage95.0
dc.citation.volume42


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record