Using cheese whey for hydrogen and methane generation in a two-stage continuous process with alternative pH controlling approaches

2009 ◽  
Vol 100 (15) ◽  
pp. 3713-3717 ◽  
Author(s):  
Nikolaos Venetsaneas ◽  
Georgia Antonopoulou ◽  
Katerina Stamatelatou ◽  
Michael Kornaros ◽  
Gerasimos Lyberatos
Keyword(s):  
Cheese Whey ◽  
Continuous Process ◽  
Two Stage ◽  
Methane Generation

A two stage continuous process for the production of thermogelable curdlan-type exopolysaccharide

1982 ◽  
Vol 4 (11) ◽  
pp. 689-694 ◽  
Author(s):  
H. G. Lawford ◽  
K. Railton Phillips ◽  
G. R. Lawford
Keyword(s):  
Continuous Process ◽  
Two Stage

Effect of Two-Stage Treatment on the Biological Treatability of Strong Industrial Wastes

1993 ◽  
Vol 28 (2) ◽  
pp. 145-154 ◽  
Author(s):  
F. Germirli ◽  
D. Orhon ◽  
N. Artan ◽  
E. Ubay ◽  
E. Görgün
Keyword(s):  
Biological Treatment ◽  
Cheese Whey ◽  
Anaerobic Treatment ◽  
Industrial Wastes ◽  
Second Phase ◽  
Acid Plant ◽  
Two Stage ◽  
Effluent Standards ◽  
Biological Treatability ◽  
Very High

Some agro-industries generate wastewaters with very high COD concentrations and require two-stage biological treatment Inert or residual organic constituents of these wastewaters, even at very low ratios, play a major role in the compliance of effluent standards. In this study, two strong wastes, citric acid plant effluent and cheese whey were tested for their inert COD content. The experiments showed that the first-phase anaerobic treatment provided a major decrease in the residual COD, but introduced significant amounts of particulate residual COD to the second phase. A newly developed procedure was used for the assessment of the soluble and particulate residual COD.

Continuous hydrogen and methane production in a two-stage cheese whey fermentation system

2011 ◽  
Vol 64 (2) ◽  
pp. 367-374 ◽  
Author(s):  
C. B. Cota-Navarro ◽  
J. Carrillo-Reyes ◽  
G. Davila-Vazquez ◽  
F. Alatriste-Mondragón ◽  
E. Razo-Flores
Keyword(s):  
Methane Production ◽  
Cheese Whey ◽  
Continuous Production ◽  
Uasb Reactor ◽  
Organic Loading Rate ◽  
Stable Operation ◽  
Operational Parameters ◽  
Two Stage ◽  
Production Of Hydrogen ◽  
Stage Process

The feasibility of integrating biological hydrogen and methane production in a two-stage process using mixed cultures and cheese whey powder (CWP) as substrate was studied. The effect of operational parameters such as hydraulic retention time (HRT) and organic loading rate (OLR) on the volumetric hydrogen (VHPR) and methane (VMPR) production rates was assessed. The highest VHPR was 28 L H2/L/d, obtained during stable operation in a CSTR at HRT and OLR of 6 h and 142 g lactose/L/d, respectively. Moreover, hydrogen (13 L/L/d) was produced even at HRT as low as 3.5 h and OLR of 163 g lactose/L/d, nonetheless, the reactor operation was not stable. Regarding methane production in an UASB reactor, the acidified effluent from the hydrogen-producing bioreactor was efficiently treated obtaining COD removals above 90% at OLR and HRT of 20 g COD/L/d and 6 h, respectively. The two-stage process for continuous production of hydrogen and methane recovered over 70% of the energy present in the substrate. This study demonstrated that hydrogen production can be efficiently coupled to methane production in a two-stage system and that CWP is an adequate substrate for energy production.

scholarly journals Optimization of Two-Stage and Single-Stage Anaerobic Reactors Treating Cheese Whey

2016 ◽  
Vol 19 (1) ◽  
pp. 25 ◽  
Author(s):  
Emre YAZAR ◽  
Kevser CIRIK ◽  
Şebnem ÖZDEMIR ◽  
Dilek AKMAN ◽  
Yakup CUCİ ◽  
...  
Keyword(s):  
Cheese Whey ◽  
Single Stage ◽  
Two Stage ◽  
Anaerobic Reactors

Innovative two-stage anaerobic process for effective codigestion of cheese whey and cattle manure

2013 ◽  
Vol 128 ◽  
pp. 779-783 ◽  
Author(s):  
Lorenzo Bertin ◽  
Selene Grilli ◽  
Alessandro Spagni ◽  
Fabio Fava
Keyword(s):  
Cheese Whey ◽  
Cattle Manure ◽  
Two Stage ◽  
Anaerobic Process
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