Hydrogen becomes a promising alternative energy carrier to fossil fuels since it is clean, renewable, contains high energy content and does not contribute to greenhouse effect. Therefore, using cheap or renewable resources, such as lignocellulosic materials, as the feedstock for hydrogen production, in particular, dark fermentative hydrogen production has a great potential to give major contrib...

Anaerobic sludge from palm oil mill effluent (POME) treatment plant was used as a source of inocula for the conversion of POME into hydrogen. Optimization of temperature and initial pH for biohydrogen production from POME was investigated by response surface methodology. Temperature of 60oC and initial pHof 5.5 was optimized for anaerobic microflora which gave a maximum hydrogen production of 4...

Biohydrogen production from starch wastewater industry via up-flow anaerobic staged reactor (UASR) was investigated. The reactor was operated at a hydraulic retention time (HRT) of 0.28 d, and different food to micro-organisms ratios (F/M) of 0.5, 0.9, 1.4, 1.9 and 2.8 g-COD/g-VSS.d. Peak hydrogen production rate (HPR) of 246 mmol-H2/L.d was observed at F/M of 1.4 g-COD/g-VSS.d. Artificial Neur...

The production of biohydrogen through anaerobic fermentation has received increasingly attention and has great potential as an alternative process for clean fuel production in the future. The monitoring of the stages of anaerobic fermentation provides relevant information about the bioprocess. The objective of this study is to propose a novel methodology for simultaneous analysis of sucrose, gl...

Currently, hydrogen is mainly produced through steam reforming of natural gas. However, this conventional process involves environmental and energy security concerns. This has led to the development of alternative technologies for (potentially) green hydrogen production. In this work, the environmental and energy performance of biohydrogen produced in Europe via steam reforming of glycerol and ...

The present study focused on the anaerobic biohydrogen production from olive pulp (two phase olive mill wastes, TPOMW) and the subsequent anaerobic treatment of the effluent for methane production under mesophilic conditions in a two-stage process. Biohydrogen production from water-diluted (1:4) olive pulp was investigated at hydraulic retention times (HRT) of 30 h, 14.5 h and 7.5 h while metha...

Ammonia inhibition of biohydrogen production was investigated in batch and continuous flow reactors with glucose as a substrate. In batch tests, biohydrogen production rate was highly dependent on pH and ammonia (defined as the sum of NH3 of NH4+ species) concentrations above 2 g N/L. At pH = 6.2, the maximum production decreased from 56 mL/h at 2 g N/L to 16 mL/h at 10 g N/L. At pH = 5.2, prod...

Crude glycerol from the biodiesel manufacturing process is being produced in increasing quantities due to the expanding number of biodiesel plants. It has been previously shown that, in batch mode, semi-anaerobic fermentation of crude glycerol by Enterobacter aerogenes can produce biohydrogen and bioethanol simultaneously. The present study demonstrated the possible scaling-up of this process f...

The non-renewable nature of fossil energy and the environmental pollution caused by its use, such as haze, make it very urgent to develop clean efficient renewable energy. By using microalgae biomass an alternative raw material sources like biohydrogen, methane can be produced through fermentation photosynthesis. Unlike solar energy, which has disadvantages low density, instability difficulty i...

The effectiveness of biohydrogen conversion from biomass sources is governed by the selection ideal biohydrogen-producing bacteria to achieve high and consistent production performance. aim this research was isolate identify a producer in local soil samples, as well evaluate its fermentability oil palm empty fruit bunches (OPEFB). To end, preliminary identification performed using morphological...