The effect of GAOs (glycogen accumulating organisms) on anaerobic carbon requirements in full-scale Australian EBPR (enhanced biological phosphorus removal) plants

被引：116
|
作者：
Saunders, AM [1 ]
Oehmen, A [1 ]
Blackall, LL [1 ]
Yuan, Z [1 ]
Keller, J [1 ]
机构：
[1] Univ Queensland, Adv Wastewater Management Ctr, St Lucia, Qld 4072, Australia
来源：
WATER SCIENCE AND TECHNOLOGY | 2003年 / 47卷 / 11期
关键词：
enhanced biological phosphorus removal (EBPR); fluorescence in situ hybridisation (FISH); glycogen accumulating organism (GAO); polyphosphate accumulating organism (PAO); poly-beta-hydroxyalkanoate (PHA); volatile fatty acid (VFA);
D O I：
10.2166/wst.2003.0584
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Glycogen-accumulating organisms (GAOs) were present in six full-scale plants investigated and in all but one made a significant contribution to the amount of volatile fatty acid (VFA) taken up anaerobically. While most plants surveyed contain GAOs, it was demonstrated that it is possible for a full-scale plant to operate with an insignificant GAO population. "Candidatus Accumulibacter phosphatis" were the significant polyphosphate-accumulating organisms (PAOs) in all plants surveyed. "Candidatus Competibacter phosphatis" were found in all plants along with other possible GAOs that were observed but not identified. A significant GAO population will increase the carbon requirements by removing VFA that could otherwise have been used by PAOs. Process optimization minimizing GAOs in full-scale plants would lead to a more efficient use of VFA.
引用
收藏
页码：37 / 43
页数：7
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