Abstract
Water hyacinth was subjected to various thermochemical pretreatments and used as a substrate in anaerobic digestion for biomethanation. Results indicate that the pretreatment increased the solubility of biomass and improved gas production. Best results were obtained when water hyacinth was treated at pH 11.00 and temperature 121‡C. Severe treatment conditions showed a negative effect, especially on methanogenic bacteria caused by toxic compounds produced during treatment.
Similar content being viewed by others
References
Obeid, M. (1975),Aquatic Weeds in the Sudan, Obeid, M., ed., National Council Res., Sudan and US National Academy Science, Washington, DC, pp. 101–103.
Gupta, O. P. and Lampa, P. S. (1976),Aquatic Weed in S. E. Asia, Junk, W., ed, the Hague, pp. 361–367.
Wolverton, B. C. and McDonald, R. C. (1976),New Scientist (USA) 71, 318–329.
Saraswat, N. and Khanna, P. (1986),Biotechnol. Bioeng. 828, 240–248.
Madamwar, D. B. and Mithal, B. M. (1986),Biotechnol. Bioeng. 28, 624–626.
Malik, R. K., Tauro, P., and Dahiya, D. S. (1989),Biotechnol. Bioeng. 33, 924–926.
Varel, V. H., Hashimoto, A. G., and Chen, Y. R. (1980),Appl. Environ. Microbiol. 40, 217–222.
Madamwar, D. B., Patel, A., and Patel, V. (1990),J. Ferment. Bioeng. 70, 340–342.
Gould, J. M. (1984),Biotechnol. Bioeng. 26, 46–52.
Stuckey, D. C. and McCarty, P. L. (1978),Biotechnol. Bioeng. Symp. No. 8, 231–233.
Yang, S. T. and Chang, M. (1985),Annual Reports on Fermentation Processes, vol.8, Tsao, G. T., ed., Academic Press, New York, pp. 187–209.
Reig, M., Toldra, F., Tsai, G. J., Jansen, N. B., and Tsao, G. T. (1989),Biol. Wastes 29, 201–210.
Tosum, A., Selcak, N., and Soyapak, S. (1989),Chem. Eng. Technol. 12, 96–102.
Pavlostathis, S. G. and Gossett, J. M. (1985),Biotechnol. Bioeng. 27, 334–344.
APHA, (1976),Standard Methods for the Examination of Water and Waste Water, 14th ed., American Public Health Association, Washington DC.
Fraser, M. D. (1977),Proc. Symp. Fuels from Biogas and Wastes, Inst. of Gas Technology, Chicago.
McCarty, P. L., Young, L. Y., Gossett, J. M., Stuckey, D. C, and Healy, J. B. (1976),Proc. Seminar on Microbial Energy Conversion, Germany, p. 179.
Samson, P. and Leduy, A. (1983),Biotechnol. Lett. 5(10), 671–676.
Hills, J. D. and Roberts, W. D. (1981),Agric. Wastes 3, 179–189.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Patel, V., Desai, M. & Madamwar, D. Thermochemical pretreatment of water hyacinth for improved biomethanation. Appl Biochem Biotechnol 42, 67–74 (1993). https://doi.org/10.1007/BF02788902
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02788902