Conference paper

Publication year: 2016

Pages: 10-20

Journal: Bioresource Technology

Volume number: 217

ISSN: 0960-8524

eISSN: 1873-2976

DOI Link: https://doi.org/10.1016/j.biortech.2016.01.110

Conference: International conference on Solid Waste - Knowledge Transfer for Sustainable Resource Management (ICSWHK)

Publisher: Elsevier

Abstract: 
In this study, the effects of nitrogen, phosphate and trace elements supplementation were investigated in a semi-continuously operated upflow anaerobic sludge blanket system to enhance process stability and biogas production from sugarcane vinasse. Phosphate in form of KH2PO4 induced volatile fatty acids accumulation possibly due to potassium inhibition of the methanogenesis. Although nitrogen in form of urea increased the reactor's alkalinity, the process was overloaded with an organic loading rate of 6.1 g COD L-1 d(-1) and a hydraulic retention time of 3.6 days. However, by supplementing urea and trace elements a stable operation even at an organic loading rate of 9.6 g COD L-1 d(-1) and a hydraulic retention time of 2.5 days was possible, resulting in 79% higher methane production rate with a stable specific methane production of 239 mL g COD-1. (C) 2016 Elsevier Ltd. All rights reserved.

Harvard Citation style: Janke, L., Leite, A., Batista, K., Silva, W., Nikolausz, M., Nelles, M., et al. (2016) Enhancing biogas production from vinasse in sugarcane biorefineries: Effects of urea and trace elements supplementation on process performance and stability, Bioresource Technology, 217, pp. 10-20. https://doi.org/10.1016/j.biortech.2016.01.110

APA Citation style: Janke, L., Leite, A., Batista, K., Silva, W., Nikolausz, M., Nelles, M., & Stinner, W. (2016). Enhancing biogas production from vinasse in sugarcane biorefineries: Effects of urea and trace elements supplementation on process performance and stability. Bioresource Technology. 217, 10-20. https://doi.org/10.1016/j.biortech.2016.01.110