Dissolved oxygen in gravity sewers - measurement and simulation

被引：28

作者：

Gudjonsson, G ^{[1
]}

Vollertsen, J ^{[1
]}

Hvitved-Jacobsen, T ^{[1
]}

机构：

[1] Aalborg Univ, Environm Engn Lab, DK-9000 Aalborg, Denmark

来源：

WATER SCIENCE AND TECHNOLOGY | 2002年 / 45卷 / 03期

关键词：

conceptual model; dissolved oxygen; gravity sewer; OUR; wastewater;

D O I：

10.2166/wst.2002.0049

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dissolved oxygen (DO) concentrations were during 2 months continuously measured in an intercepting sewer. Measurements were made upstream and downstream in a 3.6 km gravity sewer. DO showed significant diumal variations mainly caused by changes in the organic matter composition of the wastewater. At low temperatures the gravity sewer was strictly aerobic. However, towards the end of the measuring campaign, DO concentrations decreased as temperature increased and the sewer became anaerobic part of the day. A conceptual model that takes into account bulk water and biofilm DO uptake as well as reaeration was used to simulate the DO measured. Using measurements from the upstream station as input, the model was calibrated to yield good validation results of the DO at the downstream station.

引用

页码：35 / 44

页数：10

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