International Journal of Environmental Sciences

Volume 6 Issue 6 2016- May 2016 Pages: 934- 940 <<Previous    Next>>

Impact of poly-aluminium chloride on foam suppression in a chicken waste based biogas plant: A case study at KEPCO Kerala

Author Information:

Bhaskar Jha1, Krishna Kumar Jaiswal2 and Arun Prasath Ramaswamy3

1- M. Tech. Student, LEMS, Centre for Green Energy Technology, Pondicherry University
2- Research Scholar, LEMS, Centre for Green Energy Technology, Pondicherry University
3- Assistant Professor, LEMS, Centre for Green Energy Technology, Pondicherry University

ABSTRACT

Foaming in biogas plant is a major operational issue that needs to be addressed for efficient biogas production. The reasons considered for foaming in biogas plant are associated with presence of surfactants, overfeeding of protein and fat rich substances, and proliferation of filamentous microorganisms. The present study investigates the impact of poly-aluminium chloride (PAC) on foam suppression as well as bio-methane production in the chicken waste based biogas reactors. The cationic polymer, PAC in the concentration range of 50-500 ppm, was fed into the biogas reactor; at the PAC concentrations of 300 and 400 ppm the foam formation was suppressed up to 33% and 41% respectively. Moreover, the addition of PAC increased bio-methane production. PAC provides a potential solution for excessive foaming in biogas reactors.

Keywords: Foaming, Polyaluminium chloride, Foam suppressor, Chicken waste, Biogas plant.

DOI:10.6088/ijes.6088

© 2016 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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