Some influences of sediments in aerated lagoons and waste stabilization ponds

Chabir, D.; El Ouarghi, H.; Brostaux, Yves; Vasel, Jean-Luc

doi:10.2166/wst.2000.0652

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Some influences of sediments in aerated lagoons and waste stabilization ponds

Chabir, D.; El Ouarghi, H.; Brostaux, Yves et al.

2000 • In Water Science and Technology, 42 (10), p. 237-246

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https://hdl.handle.net/2268/18958

DOI
10.2166/wst.2000.0652

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Keywords :

sediment oxygen demand; modelling; temperature

Abstract :

[en] Respirometric tests have been undertaken on sediments in aerated lagoons and waste stabilization ponds to quantify their oxygen demand and to determine the main factors governing the process. Factors such as seasonal variations, temperature, substrate, sediment layer thickness, density of macro-invertebrates and suspended sediments were investigated. The results showed that temperature and substrate concentration are the main factors that influence sediment oxygen demand; followed by spatial heterogeneity and resuspension of sediments, whereas the density of macro-invertebrates could have an effect in summer (hot season). Sediment layer thickness had no effect. A model of sediment oxygen demand is developed for the two main factors (temperature and substrate) with an r2 of 0.98.

Disciplines :

Environmental sciences & ecology

Author, co-author :

Chabir, D.

El Ouarghi, H.

Brostaux, Yves ; Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech

Vasel, Jean-Luc ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Assainissement et Environnement

Language :

English

Title :

Some influences of sediments in aerated lagoons and waste stabilization ponds

Publication date :

2000

Journal title :

Water Science and Technology

ISSN :

0273-1223

eISSN :

1996-9732

Publisher :

IWA Publishing, Londres, United Kingdom

Volume :

Issue :

Pages :

237-246

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www.iwaponline.com/wst/04210/wst042100237.htm

Available on ORBi :

since 18 August 2009

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