Light fermentation of dark fermentation effluent for bio-hydrogen production by different Rhodobacter species at different initial volatile fatty acid (VFA) concentrations

2008 ◽  
Vol 33 (24) ◽  
pp. 7405-7412 ◽  
Author(s):  
H ARGUN ◽  
F KARGI ◽  
I KAPDAN
Keyword(s):  
Fatty Acid ◽  
Hydrogen Production ◽  
Volatile Fatty Acid ◽  
Dark Fermentation

Dark fermentation: Production and utilization of volatile fatty acid from different wastes- A review

Chemosphere ◽  
2022 ◽  
Vol 288 ◽  
pp. 132444
Author(s):  
Ashutosh Kumar Pandey ◽  
S. Pilli ◽  
P. Bhunia ◽  
R.D. Tyagi ◽  
Rao Y. Surampalli ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Volatile Fatty Acid ◽  
Dark Fermentation

Screening and bioprospecting of anaerobic consortia for biohydrogen and volatile fatty acid production in a vinasse based medium through dark fermentation

2018 ◽  
Vol 67 ◽  
pp. 1-7 ◽  
Author(s):  
Eduardo Bittencourt Sydney ◽  
Alessandra Cristine Novak ◽  
Drielly Rosa ◽  
Adriane Bianchi Pedroni Medeiros ◽  
Satinder Kaur Brar ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Dark Fermentation ◽  
Fatty Acid Production

Inhibition by chromium and cadmium of anaerobic acidogenesis

2001 ◽  
Vol 43 (11) ◽  
pp. 267-274 ◽  
Author(s):  
H. Q. Yu ◽  
H. H. P. Fang
Keyword(s):  
Fatty Acid ◽  
Hydrogen Production ◽  
Volatile Fatty Acid ◽  
Biogas Production ◽  
Gas Production ◽  
Total Volatile ◽  
Alcohol Production ◽  
Dairy Waste ◽  
Degree Of Acidification ◽  
Total Volatile Fatty Acid

The effects of chromium (III) and cadmium on the anaerobic acidogenesis of a simulated dairy waste were examined using serum vials. At Cd dosages less than 20 mg/l, the acidogenesis process was enhanced by the dosage, resulting in a higher degree of acidification, protein conversion, and hydrogen production than the control. At dosages over 20-mg/l, Cd inhibited the acidogenesis. The Cr (III) dosage of 5 mg/l reduced overall volatile fatty acid and alcohol generation, degree of acidification, conversions of lactose, lipid and protein, and total biogas production, with the exception of accumulation of hydrogen and propionate. At dosages exceeding 5 mg/l, Cr (III) had a severe inhibition on the acidogenesis. The Cd concentrations which caused a 50% reduction in total volatile fatty acid and alcohol production, degree of acidification and cumulative gas production were higher than the corresponding values caused by Cr (III), suggesting that Cr (III) was more toxic to acidogenic bacteria than Cd.

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