Temperature Measurement and Stratification in Facultative Waste Stabilisation Ponds in the UK Climate |
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Authors: | Karen Louise Abis Duncan Mara |
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Affiliation: | (1) School of Civil Engineering, University of Leeds, Leeds, UK |
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Abstract: | Temperature measurements were taken at three pilot-scale facultative ponds located at Esholt wastewater treatment works in West Yorkshire, UK over two one-year periods. The measurements were taken at different depths using a technology called Thermochron iButton. The iButton readings were compared with temperature measurements taken by a YSI sonde probe and maximum/minimum thermometers: they were found to be within 1 .C. In the temperature range 3.18 .C the mean weekly and monthly air temperatures were found to be good predictors for the mean weekly and monthly pond water-column temperatures. The level of stratification in the ponds under UK climatic conditions was assessed; the data revealed that the ponds remained thermally stratified for significant periods during the year despite their shallow depth. |
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Keywords: | air temperature measurement stratification UK climate waste stabilisation ponds water temperature |
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