Enhanced biological phosphorus removal in a semi full-scale SBBR

被引：28

作者：

Arnz, P ^{[1
]}

Arnold, E ^{[1
]}

Wilderer, PA ^{[1
]}

机构：

[1] Tech Univ Munich, Inst Water Qual Control & Waste Management, D-85748 Garching, Germany

来源：

WATER SCIENCE AND TECHNOLOGY | 2001年 / 43卷 / 03期

关键词：

enhanced biological phosphorus removal (EBPR); large scale; process stability; Sequencing Batch Biofilm Reactor (SBBR); simultaneous denitrification;

D O I：

10.2166/wst.2001.0133

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A 17 m(3) Sequencing Batch Biofilm Reactor (SBBR) was operated for enhanced biological phosphorus removal and nitrification for a period of 384 days. Enhanced biological phosphorus removal (EBPR) activity was instantly induced after start-up of EBPR operation mode and low phosphate effluent values were reached from the first batch onward. Process stability with regard to nitrification and EBPR were very good although high nitrate loads from backwashing disturbed the P removal performance. Due to anoxic conditions in the beginning of the cycle. readily degradable COD was depleted by dentrification. Consequently, particulate matter was the main carbon source for phosphorus accumulating organisms. Anaerobic hydrolysis or fermentation was found to be the rate limiting process in the SBBR cycle. Simultaneous dentrification occurred in the first 30 minutes of aeration and - to a lesser extent - during the remaining aeration time, enhancing nitrogen removal and indirectly also phosphorus removal.

引用

页码：167 / 174

页数：8

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