Feasibility of biohydrogen production from cheese whey using a UASB reactor: Links between microbial community and reactor performance

2009 ◽  
Vol 34 (14) ◽  
pp. 5674-5682 ◽  
Author(s):  
E. Castelló ◽  
C. García y Santos ◽  
T. Iglesias ◽  
G. Paolino ◽  
J. Wenzel ◽  
...  
Keyword(s):  
Microbial Community ◽  
Cheese Whey ◽  
Biohydrogen Production ◽  
Uasb Reactor ◽  
Reactor Performance

Microbial community composition and reactor performance during hydrogen production in a UASB reactor fed with raw cheese whey inoculated with compost

2011 ◽  
Vol 64 (11) ◽  
pp. 2265-2273 ◽  
Author(s):  
E. Castelló ◽  
V. Perna ◽  
J. Wenzel ◽  
L. Borzacconi ◽  
C. Etchebehere
Keyword(s):  
Microbial Community ◽  
Hydrogen Production ◽  
Cheese Whey ◽  
Microbial Community Composition ◽  
Uasb Reactor ◽  
Hydrogen Yield ◽  
Reactor Performance ◽  
Loading Rates ◽  
Streptococcus A ◽  
Selection Of

This study investigated the microbial community developed in a UASB reactor for hydrogen production and correlated it to reactor performance. The reactor was inoculated with kitchen waste compost and fed with raw cheese whey at two organic loading rates, 20 gCOD/Ld and 30 gCOD/Ld. Hydrogen production was very variable, using an OLR of 30 gCOD/Ld averaged 1.0 LH2/Ld with no methane produced under these conditions. The hydrogen yield was also very variable and far from the theoretical. This low yield could be explained by selection of a mixed fermentative population with presence of hydrogen producing organisms (Clostridium, Ruminococcus and Enterobacter) and other non-hydrogen producing fermenters (Lactobacillus, Dialister and Prevotella). The molecular analysis of the raw cheese whey used for feeding revealed the presence of three predominant organisms that are affiliated with the genera Buttiauxella (a low-yield hydrogen producer) and Streptococcus (a lactic acid-producing fermenter). Although these organisms did not persist in the reactor, the continuous addition of these fermenters could decrease the reactor's hydrogen yield.

Thermophilic biohydrogen production using a UASB reactor: performance during long-term operation

2015 ◽  
Vol 91 (4) ◽  
pp. 967-976 ◽  
Author(s):  
Adriana FM Braga ◽  
Antônio D N Ferraz Júnior ◽  
Marcelo Zaiat
Keyword(s):  
Biohydrogen Production ◽  
Uasb Reactor ◽  
Reactor Performance ◽  
Term Operation

scholarly journals Simple estimation of granule size distribution and sludge bed porosity in a UASB reactor

2013 ◽  
Vol 10 (1) ◽  
pp. 73-79
Keyword(s):  
Size Distribution ◽  
Granular Sludge ◽  
Granule Size ◽  
Uasb Reactor ◽  
Anaerobic Sludge ◽  
Reactor Performance ◽  
Efficient Operation ◽  
Mathematical Algorithm ◽  
Bed Porosity

Granular sludge is the key factor for an efficient operation of an upflow anaerobic sludge blanket (UASB) reactor. In order to monitor the granularity of anaerobic sludge, the determination of the granule size distribution is of vital importance. Another critical parameter for the UASB reactor performance is the sludge bed porosity. For this reason, several techniques have been proposed, however they are either tedious, imprecise or expensive and hardly applicable in full scale treatment plants. There was then the need for a simple and low cost technique. This technique involves the determination of the settling velocities of a sludge sample and of extrapolating the corresponding diameters using a mathematical algorithm. In the proposed algorithm, the granules density was calculated, the flow regime was examined and finally the granule size distribution was obtained. Some very important correlations were suggested by the experimental results. The granule density and diameter as well as the sludge bed porosity were strongly correlated with the VSS/TSS ratio.

Process kinetic studies of biohydrogen production by co-fermentation of fruit-vegetable wastes and cottage cheese whey

2018 ◽  
Vol 47 ◽  
pp. 39-52 ◽  
Author(s):  
Bikram Basak ◽  
Adiba Fatima ◽  
Byong-Hun Jeon ◽  
Amit Ganguly ◽  
Pradip Kumar Chatterjee ◽  
...  
Keyword(s):  
Cheese Whey ◽  
Kinetic Studies ◽  
Biohydrogen Production ◽  
Cottage Cheese ◽  
Process Kinetic ◽  
Vegetable Wastes
Sign in / Sign up

Export Citation Format

Share Document