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The bio-hydrogen producing process has complex interactions; thus, constructing a detailed mechanistic model and proper control architecture is difficult. Artificial neural networks (ANNs) are capable of inferring the complex relationships between input and output process variables without a detailed characterization of the mechanisms governing the process. This work presented a novel ANN that accurately...
On the base of the continuous flow test of mixed micro-flora, our research were the fermentation types and their H2-Production capacity and the operation control of the biohydrogen production reactor. Also contrasted different ways to suppress the methanogenic activity. When the pH was between 6.57-;7.1, continuous stirred tank (CSTR) I got butyric acid type fermentation. The content of hydrogen in...
A continuous stirred-tank reactor (CSTR) for biohydrogen production using Biohybacterium R3 which is a new anaerobic hydrogenogens bacteria. The point was to assess the start-up and continuous operation characteristics. It was found that at pH of about 4.5, the COD concentration of 6000 mg·L-1, and a hydraulic retention time (HRT) of 8h, a hydrogen producing microbial community could be adapt on the...
Hydrogen production from diluted molasses by pure microbial species R3 was investigated in a continuous stirred tank reactor (CSTR) under continuous flow condition in this paper. The reactor used in this study was made of organic glasses. The experimental results indicated that the hydrogen-producing system could attain a stable state for hydrogen production with a hydraulic retention time (HRT) of...
The effect of hydraulic retention time (HRT) on the performance of hydrogen production from beet sugar wastewater by anaerobic fermentation using mixed microbial communities was investigated in a continuous stirred-tank reactor (CSTR) in this present study. A CSTR was designed and its performance was determined at various HRT. The goal was to find the optimal HRT for hydrogen production, to minimize...
Biohydrogen production with simultaneous wastewater treatment was studied in continuous stirred-tank reactor (CSTR) using beet sugar wastewater as substrate. Aerobic activated sludge was used as parent inoculum to startup the bioreactor. The reactor started up under the condition of influent COD concentration 4000 mg/L, pH 7, HRT 8 h and (35??1)??C, with a biomass of 6.09 g/L activated sludge in term...
The technical features of a large (300 - 500 kW) anaerobic digester (AD) plant operating on recycled organic waste are presented. The plant is located on the remote Hebridean island of Lewis off the west coast of Scotland. Excess electrical production from the AD plant's biogas engine will be used by the Hebridean Hydrogen Park currently under development for the generation of hydrogen through water...
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