Enhanced biological phosphate removal by granular sludge in a sequencing batch reactor

被引：48

作者：

Dulekgurgen, E ^{[1
]}

Ovez, S ^{[1
]}

Artan, N ^{[1
]}

Orhon, D ^{[1
]}

机构：

[1] Tech Univ Istanbul, Dept Environm Engn, Fac Civil Engn, TR-34469 Istanbul, Turkey

来源：

BIOTECHNOLOGY LETTERS | 2003年 / 25卷 / 09期

关键词：

enhanced biological phosphate removal; granular sludge; morphology; sequencing batch reactor; sludge volume index;

D O I：

10.1023/A:1023495710840

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A laboratory-scale sequencing batch reactor was started-up with flocculated biomass and operated primarily for enhanced biological phosphate removal. Ten weeks after the start-up, gradual formation of granular sludge was observed. The compact biomass structure allowed halving the settling time, the initial reactor volume, and doubling the influent COD concentration. Continued operation confirmed the possibility of maintaining a stable granular biomass with a sludge volume index less than 40 ml g(-1), while securing a removal efficiency of 95% for carbon, 99.6% for phosphate, and 71% for nitrogen. Microscopic observations revealed a morphological diversity.

引用

页码：687 / 693

页数：7

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