BioChem - DOS

Effect of percolation frequency on biohydrogen production from fruit and vegetable wastes by dry fermentation

International journal of hydrogen energy

Keskin, Tugba; Abubackar, Haris Nalakath; Yazgin, Okyanus; Gunay, Bensu; Azbar, Nuri

<P><B>Abstract</B></P> <P>Organic solid wastes are the most abundant sources for biohydrogen production. Dry fermentation system has many advantages over continuously fed reactor systems for treatment of organic solid wastes. In this study the effect of percolation frequency on yield of biohydrogen production from fruit and vegetable wastes using dry fermentation system was examined. For this purpose 2 times percolation per day, 1 time percolation per day and 1 time percolation per 2 days frequency were compared and the hydrogen yields were observed as; 57 mL H<SUB>2</SUB>/gVS<SUB>removed</SUB>, 53 mL H<SUB>2</SUB>/gVS<SUB>removed</SUB> and 68 mL H<SUB>2</SUB>/gVS<SUB>removed</SUB> respectively. The percolation frequency didn't affect the overall yield but significantly affected the biohydrogen producing reactor of the dry fermentation system. 80% of the hydrogen was produced in percolation tank during 1 time per 2 days feeding and almost all hydrogen production was conducted in dry fermenter during 2 times per day percolation. Therefore the percolation frequency is found to be very important for system operation characteristics.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Dark fermentation is very effective for fruit and vegetables wastes. </LI> <LI> Dry fermentation is very effective for solid wastes. </LI> <LI> Percolation period is very important for dry fermentation. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

2019

Elsevier

0360-3199

1879-3487

44

34

pp.18767-18775

10.1016/j.ijhydene.2018.12.099

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART97306714

Biohydrogen production; Fruit and vegetable wastes; Dry fermentation; Percolation frequency