EVALUATION OF SLUDGE PROPERTIES AT AN ACTIVATED-SLUDGE PLANT

被引：58

作者：

ERIKSSON, L ^{[1
]}

STEEN, I ^{[1
]}

TENDAJ, M ^{[1
]}

机构：

[1] STOCKHOLM WATER LTD,S-11382 STOCKHOLM,SWEDEN

来源：

WATER SCIENCE AND TECHNOLOGY | 1992年 / 25卷 / 06期

关键词：

ACTIVATED SLUDGE; RESIDUAL TURBIDITY; SLUDGE VOLUME; FLOC MODEL; FLOC STRUCTURE; FILAMENTOUS ORGANISMS; FLOC STRENGTH; FILTRATION RESISTANCE; SLUDGE LOADING; SLUDGE AGE;

D O I：

10.2166/wst.1992.0127

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Composition of pre-settled water, sludge properties in two different fines of an activated sludge plant, and suspended solids (SS) content in outgoing water were followed three times a week during one year. Sludge characteristics were: settling properties, residual turbidity, floc strength, filtration resistance, amount of extracellular polymers, microscope appearance and total length of filamentous organisms. The outgoing SS could be related to residual turbidity and sludge volume. These factors depended on the floc structure and the filament length. These were determined by sludge load or sludge age, water composition and the hydrodynamic history of the sludge. On basis of these and earlier findings a general model for properties of flocs built by floc-forming organisms in activated sludge is proposed.

引用

页码：251 / 265

页数：15

共 17 条

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[2]

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[3]

CABANE B, 1989, ACS S SERIES, V384

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