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Biomethanation of fruit processing industry waste-water through high-rate reactor

Indian Agricultural Research Journals

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Title Biomethanation of fruit processing industry waste-water through high-rate reactor
 
Creator GITANJALI, J
MEKALA, L
AHMED, O RIYAZ
RAO, K BALAJI
KAMARAJ, S
 
Subject Biogas batch study, Biogas yield, High-rate reactor, Net volatile solid content, Total solid content
 
Description The present paper reports a study conducted at Tamil Nadu Agricultural University, aiming at developing a highrate reactor for treating the food processing waste-water. It was found that the waste-water had low strength biodegradability by conducting batch experiment with and without mixing cattle-dung in different volatile solid proportion and cattle-dung ratio. The BOD and COD of the waste-water were found to be 540 and 2000 mg/Lrespectively and pH of the processing waste-water was 1.37 that lies in the acidic range. In the batch studies conducted, the maximum gas production was recorded per kg of Total Solid Content and Net Volatile Solid Content added was observed in crushed and over ripen sample as 87.95, 91.51 L and 82.05, 84.24 L respectively. The minimum gas production per kg of total solid content and volatile solid content added was observed in waste-water sample as 2.22 and 2.42 L respectively for the digestion period of 21 days. The high-rate reactor for treating the food processing waste-water was installed at a reputed firm. The COD removal efficiency, TS removal efficiency and VS removal efficiency was found to be about 50, 36 and 29% respectively. The biogas generation potential is estimated to be 60 m3/day. The industry saved not only electric power of 96 kWh/day, but also the sludge was used as manure, thus thewaste disposal was in an environmentally friendly approach.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-04-17
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/47899
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 4 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/47899/20561
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences