Economic Analysis of a Large UASB Reactor Producing Biogas from Baggase Wash Water


This paper concerns with the treatment of bagasse wash water, which is generated after washing the stored bagasse before its use in the paper manufacture. The bagasse wash water, treated earlier in open lagoons, is now treated by the anaerobic process using UASB reactor. This study, based upon an operating unit, shows that the UASB reactor reduces COD of wash water by 85% - 90%, and results in significant emission reductions. Economic analysis carried out by using financial indicators such as DSCR, Payback period and IRR reveals very attractive rate of returns and thus, greatly reduces the risks in financing such projects by the financial institutions.

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Jain, V. , S. Sambi, S. , Kumar, S. and Shashi, &. (2014) Economic Analysis of a Large UASB Reactor Producing Biogas from Baggase Wash Water. Journal of Sustainable Bioenergy Systems, 4, 68-74. doi: 10.4236/jsbs.2014.41007.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Central Electricity Authority, Ministry of Power, Government of India, New Delhi.
[2] Ministry of Power, Government of India, New Delhi.
[3] (2006) Integrated Energy Policy—Report of the Expert Committee, Planning Commission. Government of India, New Delhi.
[4] (2008) National Action Plan on Climate Change. New Delhi.
[5] Rintala, J.A., Jain, V.K. and Kettunen, R.H. (1999) Comparative Status of the World-Wide Commercially Available Anaerobic Technologies Adopted for Biomethanation of Pulp & Paper Mills Effluents. Proceedings of the 4th International Conference on Pulp & Paper Industry, New Delhi, 14-16 December 1999.
[6] (2006) Green Energy from Wastes. MNRE, New Delhi.
[7] Metcalf and Eddy (1991) Wastewater Engineering Treatment Disposal and Reuse. 3rd Edition. Tata McGraw Hill Edition, New Delhi.
[8] APHA (1998) Standard Methods for the Examination of Water and Wastewater. 20th Edition, American Public Health Association, Washington DC.
[9] AM0022: Avoided Wastewater and On-Site Energy Use Emissions in the Industrial Sector—Version 4.0.
[10] (2006) Korat Waste to Energy (KWTE) Project in Thailand. Eco Securities Ltd.
[11] Brennan, D. (1998) Process Industry Economics—An International Perspective. Institution of Chemical Engineers, Rugby.
[12] (2011) Programme on Recovery of Energy from Industrial Wastes.

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