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Synergising hydrothermal pre-treatment and biological processes for enhancing biohydrogen production from palm oil mill effluent

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dc.citedby0
dc.contributor.authorZainal B.S.en_US
dc.contributor.authorYu K.L.en_US
dc.contributor.authorOng H.C.en_US
dc.contributor.authorMohamed H.en_US
dc.contributor.authorKer P.J.en_US
dc.contributor.authorAbdulkreem-Alsultan G.en_US
dc.contributor.authorTaufiq-Yap Y.H.en_US
dc.contributor.authorMahlia T.I.en_US
dc.contributor.authorid57200914760en_US
dc.contributor.authorid57539404500en_US
dc.contributor.authorid55310784800en_US
dc.contributor.authorid57136356100en_US
dc.contributor.authorid37461740800en_US
dc.contributor.authorid59154538800en_US
dc.contributor.authorid57194506693en_US
dc.contributor.authorid56997615100en_US
dc.date.accessioned2025-03-03T07:41:21Z
dc.date.available2025-03-03T07:41:21Z
dc.date.issued2024
dc.description.abstractThe high quantity of nutrient-rich palm oil mill effluent (POME) waste in the industry will have a severe negative environmental impact and a high cost of treatment. However, POME waste could be converted into bioenergy via environmentally sustainable processes. Several studies have explored using hydrothermal carbonisation for solid biomass products in biofuel production, but the potential of the liquid phase produced during these processes has received less attention. Therefore, this study aims to assess the potential of biohydrogen production from treated POME as a substrate by hydrothermal process. This study is presented in two phases: the first phase involves substrate pre-treatment using a hydrothermal process to improve biomass properties at different temperatures, and the second phase explores the potential for biohydrogen production from treated POME through dark fermentation. Substrate pre-treatment was conducted at 180, 210, and 240 �C using 100 % raw POME. Next, the treated POME was incubated for biohydrogen production at 50 �C for 24 h. A microbial analysis was conducted to determine the most dominant species present in the sample. Our findings show that at 180 �C, the total chemical oxygen demand (COD) removal efficiency was 80 %, and acetic acid concentration was 28 %. Compared to raw POME, treated POME generated a maximum hydrogen yield and rate (HPR) of 52.19 mL H2 g?1 CODrem and 0.59 mL H2 mL POME?1 day?1 with a 2.32-fold and 1.59-fold increase, respectively. Meanwhile, Clostridium was a dominant bacterial species identified in the treated POME. These findings demonstrated the feasibility of implementing a hydrothermal process to treat POME and improve its biohydrogen production efficiency. The treated POME from the hydrothermal process is more homogenous and readily consumable by microorganisms used in dark fermentation. Hydrothermal pre-treatment could potentially increase the rate and efficiency of microbial digestion, leading to enhanced hydrogen production. The high COD removal efficiency during the process significantly reduces the environmental impact of POME discharge, and converting POME into a valuable resource through the hydrothermal and dark fermentation process aligns with sustainable waste management practices. ? 2024 The Institution of Chemical Engineersen_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.psep.2024.10.024
dc.identifier.epage436
dc.identifier.scopus2-s2.0-85207027732
dc.identifier.spage424
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85207027732&doi=10.1016%2fj.psep.2024.10.024&partnerID=40&md5=096ee060bd3235649bef86264fc0d8d6
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36079
dc.identifier.volume192
dc.pagecount12
dc.publisherInstitution of Chemical Engineersen_US
dc.sourceScopus
dc.sourcetitleProcess Safety and Environmental Protection
dc.subjectChemical oxygen demand
dc.subjectClostridium
dc.subjectEffluent treatment
dc.subjectExhaust gases
dc.subjectExplosive well stimulation
dc.subjectFilm preparation
dc.subjectLand fill
dc.subjectLayered manufacturing
dc.subjectMining laws and regulations
dc.subjectOil shale
dc.subjectQuality assurance
dc.subjectQuality control
dc.subjectRoom and pillar mining
dc.subjectBio-hydrogen
dc.subjectBio-hydrogen production
dc.subjectBiological treatment
dc.subjectDark fermentation
dc.subjectHydrothermal
dc.subjectHydrothermal process
dc.subjectPalm oil mill effluents
dc.subjectPalm oil wastes
dc.subjectSubstrate pretreatment
dc.subjectSustainable energy
dc.subjectEffluents
dc.titleSynergising hydrothermal pre-treatment and biological processes for enhancing biohydrogen production from palm oil mill effluenten_US
dc.typeArticleen_US
dspace.entity.typePublication
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