Optimum Solid Loading Rate for Biogas Production from Agricultural Wastes
Abstract
Turkey was the fourth and third largest producer of tomato and pepper from
greenhouses, respectively, according to FAO in 2012. The huge amount of agricultural wastes
generated from the production of tomato and green pepper are served as renewable sources for
energy production via anaerobic digestion (AD) For efficiently biogas production, it is essential to
determine the operation conditions of AD such as solid loading rate (SLR) for target wastes.
The aim of this study is to optimize SLR for optimum biogas production from tomato and green
pepper wastes. For this purpose, biochemical methane potential tests were carried out at 37 °C
with 7% and 15% of SLRs. For supplying the nutritional requirements of AD process, cow manure
was also added as a 10% of the selected SLR. As the biogas production from tomato wastes was
nearly 75% increased with the increase in SLR from 15% to 7%., the optimum SLR was
determined as 7% for anaerobic digestion of tomato wastes. On the other hand, decreasing SLR of
pepper waste from 15% to 7% is resulted with only 11% decrease in biogas production. When the
energy revenue between the 7% and 15% SLRs is compared with disposal cost of nearly two-fold
pepper wastes, suitable SLR for pepper wastes can be suggested as 15%. Consequently, the
optimum SLR for anaerobic digestion of tomato and pepper was determined as 7% and 15%,
respectively.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
H. Emre Akman
This is me
Ecehan Akman
This is me
Asli S. Cıggın
This is me
N. Altınay Perendeci
This is me
Publication Date
June 1, 2014
Submission Date
May 16, 2014
Acceptance Date
July 15, 2014
Published in Issue
Year 2014 Volume: 10 Number: 3