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Limnology of a Warm Hypertrophic Wastewater Reservoir in Israel I. The Physical Environment

✍ Scribed by Marcelo Juanico

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
828 KB
Volume
79
Category
Article
ISSN
1434-2944

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✦ Synopsis

Abstract

This paper deals with stratification in a small reservoir (50 000 m^3^ volume, 5.5 m depth) receiving wastewater with a BOD of 80 mg/1 during the winter in order to irrigate agricultural areas during the dry summer. The reservoir goes through three partially overlapping annual cycles: solar radiation, water temperature and reservoir operation. It presents both permanent (deep) and ephemeral (shallow) stratification during the summer in spite of the strong breeze, due to both thermal and biogenic chemical gradients. There are stratified and non‐stratified wastewater reservoirs in Israel. Stratification in hypertrophic impoundments seems to depend also on parameters derived from the chemical composition of hypertrophic waters. (e. g., turbidity, biogenic gradients, wind/water friction coefficient, viscosity).

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