Effects of process, operational and environmental variables on biohydrogen production using palm oil mill effluent (POME). (7th June 2018)

• Record Type: Journal Article
• Authors: Zainal, Bidattul Syirat; Zinatizadeh, Ali Akhbar; Chyuan, Ong Hwai; Mohd, Nuruol Syuhadaa; Ibrahim, Shaliza
• Is Part Of: International journal of hydrogen energy. Volume 43:Number 23(2018)
• Page Start: 10637
• Page End: 10644
• Publication Date: 2018-06-07
• Subjects: Palm oil mill effluent (POME) -- Biohydrogen -- COD removal -- Response surface methodology (RSM); Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2017.10.167
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: A batch study for biohydrogen production was conducted using raw palm oil mill effluent (POME) and POME sludge as a feed and inoculum respectively. Response Surface Methodology (RSM) was used to design the experiments. Experiments were conducted at different reaction temperatures (30–50 °C), inoculum size to substrate ratios (I:S) and reaction times (8–24 h). An optimum condition of biohydrogen production was achieved with COD removal efficiency of 21.95% with hydrogen yield of 28.47 ml H2 g −1 COD removed. The I:S ratio was 40:60, with reaction temperature of 50 °C at 8 h of reaction time. The study showed that a lower substrate concentration (less than 20 g L −1 ) for biohydrogen production using pre-settled POME was achievable, with optimum HRT of 8 h under thermophilic condition (50 °C). This study also found that pre-settled POME is feasible to be used as a substrate for biohydrogen production under thermophilic condition. Highlights: POME sludge and raw POME is feasible for biohydrogen production. Shorter reaction time is significantly increased on the hydrogen yield. Inoculum size gives a significant effect on the hydrogen yield and COD removal efficiency.