Temperature measurement and stratification in facultative waste stabilisation ponds in the UK climate.
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.
School of Civil Engineering, University of Leeds, Leeds, UK. k.l.abis99@members.leeds.ac.uk
Karen Louise
KL
Abis
Duncan
D
Mara
D002980:Climate; D004784:Environmental Monitoring / Q000379:methods*; D013696:Temperature; D006113:United Kingdom; D014865:Waste Disposal, Fluid / Q000379:methods*; D014871:Water Microbiology / Q000592:standards*; D018508:Water Purification / Q000379:methods*; D014881:Water Supply / Q000592:standards*