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Anaerobic Co-Digestion of Food Waste and Straw for Methane Production

Author Affiliations

  • 1Department of Civil Engineering, Coimbatore Institute of technology, Coimbatore, India

Res. J. Engineering Sci., Volume 5, Issue (6), Pages 5-9, June,26 (2016)


Solid waste management programmes are driven by a desire to keep environment clean in the hope of promoting environmental quality and public health. Large quantity of food waste produced results in nuisance and cause foul smell due to their nature. These wastes are disposed off by dumping, thermo chemical process, sanitary landfill, composting. The biodegradable organic waste was carried out in anaerobic digestion in enclosed space under controlled conditions of temperature, moisture, pH, etc. Co-digestion of food wastes and straw is the best suited process, apart from biogas production, the methane fermentation process produces stabilized waste. Codigestion is combined digestion with different waste carried out in a single reactor. The present study focus on the Anaerobic digestion of mixed food and straw waste carried out in laboratory scale at ambient temperature condition and investigates on volume of biogas produced per unit weight of waste . Daily and cumulative gas produced was measured by water displacement method. Analysis of variability of feedstock during the digestion process was carried out .Samples showed considerable reduction in total solids, total volatile solids and COD during degradation process indicating the waste stabilization.


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