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Kinetic Modeling of Anaerobic Co-digestion of Water Hyacinth and Poultry Litter

Author Affiliations

  • 1Department of Chemical Engineering, R.V. College of Engineering, Bangalore-560059, INDIA

Res.J.chem.sci., Volume 3, Issue (6), Pages 69-73, June,18 (2013)


The over-utilization of global energy sources is a major problem to the present and future world community. It has been estimated that the fossil fuels would be exhausted in the next few decades. In today’s energy demanding lifestyle, there is always a need for exploring and exploiting new sources of energy which is renewable as well as eco-friendly. Anaerobic co-digestion is a technology that utilizes more than one organic waste to produce methane, which holds promise for the future while simultaneously addressing ecological and agrochemical issues. In the present study anaerobic co-digestion of water hyacinth and poultry litter has been carried out in 300 ml batch digesters with 8% total solids content for different retention period. After completion of the retention period of individual digester, total solids, volatile solids, pH and biogas evolved is been tabulated Variation of Biogas production, total solids, volatile solids, and pH has been studied as a function of time. Anaerobic co-digestion of Water Hyacinth and Poultry Litter produced biogas yield of 0.3810 l/g volatile solids. A kinetic model was proposed using integral method of analysis which revealed the anaerobic co-digestion of water hyacinth and poultry litter follows a first order reaction with rate constant 0.026 day-1 .


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