Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic.
Bioresour Technol. 2013 Feb;130:88-96. doi: 10.1016/j.biortech.2012.12.003. Epub 2012 Dec 12.
The aim of this study was to discuss the experience from long-term operation of a laboratory UASB reactor inoculated with suspended or granulated biomass for the treatment of different kinds of crude glycerol in undiluted or diluted state. The UASB reactor was operated under mesophilic conditions. It was demonstrated that the anaerobic treatment of crude glycerol as the only substrate in the UASB reactor is feasible, although the specific inhibition effects and requirements resulting from the nature and composition of the g-phase have to be considered. Deficient concentrations of nutrients had to be compensated by their supplementation into the digester. Long-term microbiological treatment of undiluted crude glycerol led to the process inhibition due to the accumulation of dissolved inorganic salts. When dosing diluted g-phase previously treated by acidulation, very good removal efficiency of COD, stable biogas production and high share of methane in the biogas were observed at the organic loading rates of up to 12kg/(m(3)d).
本研究旨在讨论长期运行的实验室上流式厌氧污泥床（UASB）反应器的经验，该反应器接种了悬浮或颗粒状生物量，用于处理未稀释或稀释状态的不同种类的粗甘油。UASB 反应器在中温条件下运行。结果表明，尽管由于 g 相的性质和组成而导致特定的抑制作用和要求必须考虑，但在 UASB 反应器中以粗甘油作为唯一底物进行厌氧处理是可行的。营养物质的浓度不足必须通过向消化池补充来补偿。长期对未稀释粗甘油进行微生物处理会导致由于溶解无机盐的积累而导致处理过程抑制。当投加经酸化预处理的稀释 g 相时，在有机负荷率高达 12kg/（m(3)d）时，观察到 COD 的去除效率非常高，沼气产量稳定，沼气中甲烷的比例很高。
