Biohydrogen production with anaerobic sludge immobilized by granular activated carbon in a continuous stirred-tank

2010 ◽  
Vol 21 (4) ◽  
pp. 509-513 ◽  
Author(s):  
Wei Han ◽  
Hong Chen ◽  
Xin Yao ◽  
Yong-feng Li ◽  
Chuan-ping Yang
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Biohydrogen Production ◽  
Stirred Tank ◽  
Anaerobic Sludge ◽  
Continuous Stirred Tank

Influence of activated carbon on performance and microbial communities in the treatment of solvent pollutant mixtures in a continuous stirred tank reactor

2020 ◽  
Vol 6 (5) ◽  
pp. 1445-1455
Author(s):  
Pablo Ferrero ◽  
Marta Izquierdo ◽  
Francisco Javier Álvarez-Hornos ◽  
Josep Manuel Penya-Roja ◽  
Vicente Martínez-Soria
Keyword(s):  
Activated Carbon ◽  
Microbial Communities ◽  
Granular Activated Carbon ◽  
Stirred Tank ◽  
Continuous Stirred Tank Reactor ◽  
Carbon Addition ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Continuous Stirred Tank ◽  
Pollutant Mixtures

Granular activated carbon addition could promote specific microorganisms which favour the anaerobic removal of non-readily biodegradable solvent compounds through their influence on the degradation (methanogenesis) of intermediates.

scholarly journals Enhancement of Biohydrogen Production via pH Variation using Molasses as Feedstock in an Attached Growth System

2018 ◽  
Vol 34 ◽  
pp. 02045 ◽  
Author(s):  
C.N.S. Che Zuhar ◽  
N.A. Lutpi ◽  
N. Idris ◽  
Y.S. Wong ◽  
T.N. Tengku Izhar
Keyword(s):  
Activated Carbon ◽  
Hydrogen Production ◽  
Industrial Effluent ◽  
Granular Activated Carbon ◽  
Batch Cultivation ◽  
Biohydrogen Production ◽  
Anaerobic Sludge ◽  
Carrier Material ◽  
Initial Ph ◽  
Repeated Batch

In this study, mesophilic biohydrogen production by a mixed culture, obtained from a continuous anaerobic reactor treating molasses effluent from sugarcane bagasse, was improved by using granular activated carbon (GAC) as the carrier material. A series of batch fermentation were performed at 37°C by feeding the anaerobic sludge bacteria with molasses to determine the effect of initial pH in the range of 5.5 to 7.5, and the effect of repeated batch cultivation on biohydrogen production. The enrichment of granular activated carbon (GAC) immobilised cells from the repeated batch cultivation were used as immobilised seed culture to obtain the optimal initial pH. The cumulative hydrogen production results from the optimal pH were fitted into modified Gompertz equation in order to obtained the batch profile of biohydrogen production. The optimal hydrogen production was obtained at an initial pH of 5.5 with the maximum hydrogen production (Hm) was found to be 84.14 ml, and maximum hydrogen production rate (Rm) was 3.63 mL/h with hydrogen concentration of 759 ppm. The results showed that the granular activated carbon was successfully enhanced the biohydrogen production by stabilizing the pH and therefore could be used as a carrier material for fermentative hydrogen production using industrial effluent.

Biohydrogen production in a continuous stirred tank bioreactor from synthesis gas by anaerobic photosynthetic bacterium: Rhodopirillum rubrum

2008 ◽  
Vol 99 (7) ◽  
pp. 2612-2619 ◽  
Author(s):  
Habibollah Younesi ◽  
Ghasem Najafpour ◽  
Ku Syahidah Ku Ismail ◽  
Abdul Rahman Mohamed ◽  
Azlina Harun Kamaruddin
Keyword(s):  
Synthesis Gas ◽  
Photosynthetic Bacterium ◽  
Biohydrogen Production ◽  
Stirred Tank ◽  
Stirred Tank Bioreactor ◽  
Continuous Stirred Tank

Appropriate mixing speeds of Rushton turbine for biohydrogen production from palm oil mill effluent in a continuous stirred tank reactor

Energy ◽  
2019 ◽  
Vol 179 ◽  
pp. 823-830 ◽  
Author(s):  
Tanawat Srirugsa ◽  
Suteera Prasertsan ◽  
Thanansak Theppaya ◽  
Theerayut Leevijit ◽  
Poonsuk Prasertsan
Keyword(s):  
Palm Oil ◽  
Biohydrogen Production ◽  
Palm Oil Mill Effluent ◽  
Stirred Tank ◽  
Continuous Stirred Tank Reactor ◽  
Stirred Tank Reactor ◽  
Rushton Turbine ◽  
Tank Reactor ◽  
Continuous Stirred Tank ◽  
Palm Oil Mill

scholarly journals Biotransformation of congo red in a UASB reactor under salinity conditions using immobilized redox mediator in granular activated carbon

2021 ◽  
Vol 6 (4) ◽  
pp. 17-34
Author(s):  
Glenda A. Espinoza ◽  
◽  
Verónica Almaguer-Cantú ◽  
Refugio B. García-Reyes ◽  
Edna R. Meza ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Congo Red ◽  
Granular Activated Carbon ◽  
Uasb Reactor ◽  
Anaerobic Sludge ◽  
Substrate Consumption ◽  
Biotransformation Process ◽  
Decolorization Efficiency ◽  
Salinity Levels ◽  
Anaerobic Sludge Blanket

Azo dyes are susceptible to be treated by reductive biotransformation process under anaerobic conditions. The process can be accelerated by the addition of quinones and humic substances acting as redox mediators (RM). In this study, the anthraquinone-2-sulfonate (AQS) was immobilized on granular activated carbon (GAC) to evaluate the reductive biotransformation of congo red (CR) in an up-flow anaerobic sludge blanket reactor (UASB). The syudy was divided in five stages, where the reactors with immobilized RM and without RM were operated under different salinity levels (1% and 3%) and hydraulic retention times (HRT = 5 and 10 h). The reactor with immobilized RM (GAC-AQS) achieved a decolorization efficiency of 96.1% and substrate consumption of 98.8% with a HRT = 15 h and 1% of salinity. Nonetheless, with a salinity of 3% and the same HRT, the efficiency was similar (95.6%). The reactor provided with unmodified GAC achieved values below those observed in the reactor GAC-AQS, with decolorization efficiencies of 90.8% and 75.8%, and substrate consumption of 97.1% and 88.4%, for the stages IV and V, respectively. The microbial consortium sued was able to promote the biotransformation of azo dye and no inhibitory effects were identified.

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