African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007
  • Published Articles: 1129

Full Length Research Paper

Bio-ethanol production from poultry manure at Bonga Poultry Farm in Ethiopia

Asrat Gebremariam Woldesenbet1*, Gizachew Shiferaw1 and Bhagwan Singh Chandravanshi2
1School of Chemical and Bio-Engineering, Addis Ababa Institute of Technology, Addis Ababa University, P.O. Box 385, Addis Ababa, Ethiopia. 2Department of Chemistry, Faculty of Sciences, Addis Ababa University, P.O.Box 1176, Addis Ababa, Ethiopia.
Email: [email protected] or [email protected]

  •  Accepted: 13 June 2013
  •  Published: 30 June 2013

Abstract

 

This study aimed to determine bio-ethanol potential of poultry manure. The manure was hydrolyzed by dilute H2SO4 (0.2, 0.4, 0.6, 0.8 and 1 M) at temperature of 100 and 130°C for 30 min. Maximum glucose (115.6 g/l)  was obtained from hydrolysis of 100 g poultry manure by 0.8M H2SO4 at 100°C for 30 min. The study shows that treatment of poultry manure releases more total reducing sugar using 0.8 M H2SO4. Refractometry analysis of the fermented hydrolysate gave maximum ethanol concentration of 5% w/v with 0.8 M H2SO4 and 4, 4, 3  and 2.5% of ethanol with 1, 0.6, 0.4 and 0.2 M H2SO4 hydrolysis at 130°C for 30 min, respectively. Treatment with 0.8 M acid is an effective way that results to maximum yield and treatment with 0.2 M acid is the least effective. The optimum fermentation time is 24 h.

 

Key words: Bioethanol, bio-mass, fermentation, conversion, ethanol fuel.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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