A lot of wastewater contains high concentration organic matter was discharged from cornstarch production industry. It contains plentiful bioenergy. Upflow anaerobic sludge blanket (UASB) reactor for cornstarch industry wastewater treatment was constructed in a manufactory, and the biogas had been produced. The wastewater flux, influent CODCr , volume of UASB were 3900m3/d, 6200mg/L, 1700m3 respectively. The operation results showed that, at the CODCr loading rate of 7kg/(m3.d), temperatures in reactor was 30°C. CODCr conversion efficiency ≥ 90% and biogas productivity of 3.3m3/(m3.d) were obtained. 21810kg CODCr were reduced and 10740m3 gas was produced per day. The energy was transformed from biogas to electricity with generator, and 16110kW.h of power energy were obtained per day.
Keywords. cornstarch industry wastewater; UASB; biogas; bioenergy
References
Annachhatre AP, Amornkaew A. 2001. Upflow Anaerobic Sludge Blanket Treatment of Starch Wastewater Containing Cyanide. Water Environ Res. Vol 73. No 5. pp622~632. Thailand.
Karnchanawong S, Sawangpanyangkura T. 2004. Pretreatment of Silk-dyeing Industrial Wastewater by UASB Reactor. Water Sci. Technol. Vol 50. No 8. pp185~192. Thailand.
Torry-Smith M, Sommer P and Ahring BK. 2003. Purification of Bioethanol Effluent in an UASB Reactor System with simultaneous Biogas Formation. Biotechnol Bioeng. Vol 84. No 1. pp7~12. Denmark.
How to cite this article
Liu, J. and Zhang, C. (2005). 'The Study of Reclaiming Biomass Energy in Cornstarch Wastewater by Using UASB Reactors'. SET Proceedings, 4(1), pp. 248-250. https://doi.org/10.65582/set.2005.056
