Green hydrogen production from palm oil mill effluent (POME) by photocatalysis reaction

Kinetics of mesophilic biohydrogen production from ozone-pretreated palm oil mill effluent (POME) using C. butyricum and C. acetobutylicum co-culture was investigated. All experiments were setup in 0.5-L batch reactors under mesophilic condition (37°C), pH 6, and POME concentration of 5,000-30,000 mg COD L-1. At the concentration of 15,000 mg COD L-1, maximum hydrogen production yield for non-ozone pretreated POME and ozone pretreated POME were 318 and 122 mL g-1 CODremoved, respectively. Acetic and butyric acids were dominant fermentation products in liquid phase. Ozone-pretreatment of POME showed no significant improvement on the hydrogen production by the co-culture.

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Effect of operational variables on biological hydrogen production from palm oil mill effluent by dark fermentation using response surface methodology

10.5004/dwt.2019.23169 ◽

2019 ◽

Vol 137 ◽

pp. 101-113 ◽

Cited By ~ 5

Author(s):

Azam Akhbari ◽

Ali Akbar Zinatizadeh ◽

Mohsen Vafaeifard ◽

Parviz Mohammadi ◽

Bidattul Syirat Zainal ◽

...

Keyword(s):

Response Surface Methodology ◽

Hydrogen Production ◽

Response Surface ◽

Palm Oil ◽

Dark Fermentation ◽

Palm Oil Mill Effluent ◽

Biological Hydrogen Production ◽

Operational Variables ◽

Palm Oil Mill

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Bio-hydrogen production from palm oil mill effluent (POME): A preliminary study

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2016.04.096 ◽

2016 ◽

Vol 41 (28) ◽

pp. 11960-11964 ◽

Cited By ~ 23

Author(s):

Nik Norfadilah ◽

Abdul Raheem ◽

Razif Harun ◽

Fakhru'l–Razi Ahmadun

Keyword(s):

Hydrogen Production ◽

Palm Oil ◽

Palm Oil Mill Effluent ◽

Preliminary Study ◽

Palm Oil Mill

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Statistical Optimization of Biohydrogen Production from Palm Oil Mill Effluent by Natural Microflora

The Open Biotechnology Journal ◽

10.2174/1874070700903010079 ◽

2009 ◽

Vol 3 (1) ◽

pp. 79-86 ◽

Cited By ~ 7

Author(s):

Zatilfarihiah Rasdi ◽

Nor Aini Abdul Rahman ◽

Suraini Abd-Aziz ◽

Phang Lai-Yee ◽

Mohd Zulkhairi ◽

...

Keyword(s):

Hydrogen Production ◽

Palm Oil ◽

Substrate Concentration ◽

Oxygen Demand ◽

Biohydrogen Production ◽

Palm Oil Mill Effluent ◽

Optimum Conditions ◽

Heat Treated ◽

Natural Microflora ◽

Palm Oil Mill

In this study, palm oil mill effluent (POME) was used as the substrate for biohydrogen production. Heat-treated POME sludge acclimated with POME incubated at 37°C for 24 hours was used as seed culture. Preliminary screening on the effects of inocula sizes, heat treatment, substrate concentration and pH of incubation by using a factorial design (FD) were conducted under mesophilic condition (37°C) using a serum vial (160 mL). The experimental results from two-level FD showed that pH and Chemical Oxygen Demand (COD) of POME significantly affected biohydrogen production. Optimizations of the specific hydrogen production (Ps) and the hydrogen production rate (Rm) were achieved by using a central composite design (CCD). The maximum Ps of 272 mL H2/g carbohydrate was obtained under optimum conditions of pH 5.75 and substrate concentration of 80 g/L. The maximum Rm of 98 mL H2/h was calculated under the optimum conditions of pH 5.98 and substrate concentration of 80 g/L. The optimized conditions obtained were subjected to a confirmation run and it showed reproducible data with a Ps of 226 mL H2/g carbohydrate and Rm of 72 mL H2/h.

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