Characterisation of enhanced biological phosphorus removal activated sludges with dissimilar phosphorus removal performances

被引：20

作者：

Bond, PL ^{[1
]}

Keller, J ^{[1
]}

Blackall, LL ^{[1
]}

机构：

[1] Univ Queensland, Adv Wastewater Management Ctr, Brisbane, Qld 4072, Australia

来源：

WATER SCIENCE AND TECHNOLOGY | 1998年 / 37卷 / 4-5期

关键词：

Acinetobacter; activated sludge; bacterial population analysis; EBPR model; phosphorus removal;

D O I：

10.2166/wst.1998.0719

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A sequencing batch reactor (SBR) was operated for enhanced biological phosphorus removal (EBPR) and dramatic differences in the P removing capabilities were obtained in different stages of the operation. At one stage extremely poor P removal occurred and it appeared that bacteria inhibiting P removal overwhelmed the reactor performance. Changes were made to the reactor operation and these led to the development of a sludge with high P removing capability. This latter sludge was analysed by fluorescent in situ hybridisation [FISH) using a probe specific for Acinetobacter. Very few cells were detected with this probe indicating that Acinetobacter played an insignificant role in the P removal occurring here. Analysis of the chemical transformations of three sludges supported the biochemical pathways proposed for EBPR and non-EBPR systems in biological models. A change in operation that led to the improved P removal performance included permitting the pH to rise in the anaerobic periods of the SBR cycle. (C) 1998 IAWQ. Published by Elsevier Science Ltd.

引用

页码：567 / 571

页数：5

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