期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 76, 期 1, 页码 71-75出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2005.01.010
关键词
nutrient removal; phosphate uptake and release; sequencing batch reactor (SBR)
A three-step sequencing batch reactor (SBR) was used for nutrient removal from synthetic wastewater with different glucose-organic acid mixtures (1/1). Acetic. butyric. propionic and citric acids were used as organic acids along with glucose. The operation consisted of anaerobic. anoxic and oxic (An/Ax/Ox) phases with durations of 2/l/4.5 h. Sludge age was kept constant for 10 days. Phosphate release Pr and uptake rates were determined for different glucose-organic acid mixtures in the feed wastewater. Maximum phosphate uptake (8.1 mg PI-1 h(-1)) and release rates (2.23 Ing PI-1 h(-1)) were obtained with the glucose-citric acid mixture. The highest (96%) percent phosphate removal at the end of the nutrient removal cycle (7.5 h) was also obtained with the glucose-citric acid mixture while the glucose-acetic acid mixture resulted in comparable percent phosphate removal (95%). (c) 2005 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据