Performance and Kinetics of a Huasb Reactor for Treating Tapioca-Based Starch Industrial Waste Stream
1Dr. S. Govindaradjane, Associate Professor, Department of Civil Engineering, Pondicherry, India.
2Dr. T. Sundararajan, Professor, Department of Civil Engineering, Pondicherry, India.
Manuscript received on March 22, 2013. | Revised Manuscript received on April 15, 2013. | Manuscript published on April 30, 2013. | PP: 55-64 | Volume-2, Issue-4, April 2013. | Retrieval Number: D1277042413/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this paper, performance of a HUASB reactor for treating a tapioca-based starch industrial waste stream has been studied under six influent COD concentrations (ranging from about 1700-5800 mg/l) and five hydraulic retention times (HRTs) (ranging from 8 to 24 hours). The performance of HUASB reactor was evaluated based on COD removal (%) and bio-gas yield. Salient kinetic co-efficient of the HUASB reactor were determined by a modified-Monod based model and the dominant species in the sludge granules of the reactor was also identified. From an overall assessment, the better performance of HUASB reactor over the UASB reactor, for treating the above waste stream has been highlighted.
Keywords: HUASB and UASB reactors; Tapioca-based starch industrial waste stream; COD removal (%); Bio-gas yield; kinetic co-efficients and Performance evaluation.