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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 3066-3075
DOI: https://doi.org/10.20546/ijcmas.2017.611.359


Co-Digestion of Biofuel Deoiled Cakes with Different Combinations of Cow Dung for Biogas Production and Nutrient Rich Manure
Priyanka Prasad1*, Balakrishna Gowda1, B.S. Nalini2, G. Ashwini2, K.T. Prasanna1 and K. Rajesh Kumar1
1Department of Forestry and Environmental Sciences, University of Agricultural Sciences, Bengaluru- 580 065, Karnataka, India
2Department of Microbiology, University of Agricultural Sciences,Bengaluru- 560 065, Karnataka, India
*Corresponding author
Abstract:

Biogas is generated from the anaerobic-digestion of organic-wastes and is a rapidly emerging means for power generation. The seed-cake after oil extraction can serve as a good feedstock for the generation of biogas. This study presents summary of the results obtained in the anaerobic digestion of neem and pongamia deoiled-cakes with different proportions of cow-dung. The study revealed that the pH of cow-dung slurry at the beginning was 7.8; neem-cake, 5.0 and pongamia-cake, 5.8 suggesting significant differences in pH among the bio-gas substrates used. Two months after anaerobic-digestion, there was increase in pH with increase in the proportion of cow-dung and also increase in total-N and P in biogas spent slurry after anaerobic-digestion. There was no definite trend with reference to total-K. There was a decrease in total soluble solids (organic-matter), volatile solids, C/N-ratio and volatile fatty acids at the end of digestion. Significantly, very low C/N-ratio was recorded in treatments 4:1 cow-dung: neem-cake and 1:1 cow-dung: pongamia-cake (3.24) at the end of 60 days. The cumulative biogas for nine weeks was significant with cow-dung (15,755 cc) followed by 4:1 cow-dung: neem-cake. This suggests that oil-cakes can serve as good feed stocks for biogas production.


Keywords: Biogas, Anaerobic-digestion, Organic-matter and Volatile fatty acid.
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How to cite this article:

Priyanka Prasad, Balakrishna Gowda, B.S. Nalini, G. Ashwini, K.T. Prasanna and Rajesh Kumar, K. 2017. Co-Digestion of Biofuel Deoiled Cakes with Different Combinations of Cow Dung for Biogas Production and Nutrient Rich Manure.Int.J.Curr.Microbiol.App.Sci. 6(11): 3066-3075. doi: https://doi.org/10.20546/ijcmas.2017.611.359