Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Touliu 640, Yunlin County, Taiwan.
Bioresour Technol. 2011 May;102(9):5473-8. doi: 10.1016/j.biortech.2010.10.097. Epub 2010 Oct 25.
This study compared the PHAs production behavior of sludges from the anaerobic and oxic phases of an enhanced biological phosphorus removal (EBPR) system. This was accomplished by using the kinetics and stoichiometric coefficients obtained from aerobic batch tests to evaluate the performance of these two sludges. Experimental results indicated that the metabolic behavior of the sludges for PHAs production depend significantly on the operating sludge retention time (SRT) of the EBPR system. The oxic sludge with 5 days of SRT exhibited better PHAs production performance than anaerobic sludge. Conversely, the anaerobic sludge with 15 days of SRT had superior PHAs production capability compared to oxic sludge. These comparisons suggest that whether anaerobic or oxic sludge should be employed for PHAs production depends mainly on the operating SRT of the EBPR system.
本研究比较了强化生物除磷（EBPR）系统的厌氧和好氧阶段的污泥中 PHAs 的生产行为。这是通过使用好氧批量试验获得的动力学和化学计量系数来评估这两种污泥的性能来实现的。实验结果表明，污泥中 PHAs 的生产代谢行为取决于 EBPR 系统的运行污泥停留时间（SRT）。SRT 为 5 天的好氧污泥表现出比厌氧污泥更好的 PHAs 生产性能。相反，SRT 为 15 天的厌氧污泥与好氧污泥相比具有更高的 PHAs 生产能力。这些比较表明，是否应使用厌氧或好氧污泥进行 PHAs 生产主要取决于 EBPR 系统的运行 SRT。
