Biogas Production from Waste using Biofilm Reactor: Factor Analysis in Two Stages System

Authors: N. Zainol, J. Salihon, R. Abdul-Rahman

Abstract:

Factor analysis was applied to two stages biogas production from banana stem waste allowing a screening of the experimental variables second stage temperature (T), organic loading rates (OLR) and hydraulic retention times (HRT). Biogas production was found to be strongly influenced by all the above experimental variables. Results from factorial analysis have shown that all variables which were HRT, OLR and T have significant effect to biogas production. Increased in HRT and OLR could increased the biogas yield. The performance was tested under the conditions of various T (35oC-60oC), OLR (0.3 g TS/l.d–1.9 gTS/l.d), and HRT (3 d–15 d). Conditions for temperature, OLR and HRT in this study were based on the best range obtained from literature review.

Keywords: Biogas, factor analysis, banana stem waste

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1077999

References:

[1] L. Hartmann, "Biologische Abwassereinigung 3," Uberarbeitete. Springer, Berlin. 1993.
[2] D. Dalis, A. K. Anagnostidis, A. A. Lopez, A. I. Letsiou, I. Hartmann, "Anaerobic digestion of total : raw olive-oil wastewater in a two-stage pilot-plant (up-flow and fixed-bed bioreactors)," Bioresource Technology. 57 (1996) 237-243.
[3] W. T. Tang, L. S. Fan, "Steady state phenol degradation in a draft-tube, gas-liquid-solid fluidized bed bioreactor," AIChE J. 33 (1987) 239.
[4] P. Fox, M. T. Suidan, J. T. Bandy, "A comparison of media types in acetate fed expanded-bed anaerobic reactors," Wat. Res. 24 (1990) 827- 835.
[5] M.T. Suidan, J. R. V. Flora, T. K. Boyer, A. M. WueUner, B. Narayanan, "Anaerobic dechlorination using a fluidized-bed GAC reactor," Wat. Res. 30 (1996) 160- 170.
[6] W. G. Cochran, G. M. Cox, "Experimental Design," John Wiley and Sons, New York, 1957.
[7] F. Yates, "The design and analysis of factorial experiments," Imperial Bureau of Soil Science, Harpenden, England, 1937.
[8] D. M. Himmelblau, "Process analysis by statistical methods," John Wiley and Sons, New York, 1970.
[9] A. E. Greenberg, L. S. Clesceri, A. D. Eaton, "Standards methods for the examination of water and wastewater. 18th Edition," American Public Health Association, Washington, DC, 1992