Holistic Assessment of Trace Organic Compounds (TOrC) in Wastewater TreatmentHolistic Assessment of Trace Organic Compounds (TOrC) in Wastewater TreatmentA study of trace organic compound (TOrC) reactivity to selected, advanced wastewater treatment processes was conducted as part of a demonstration-scale pilot study. The pilot facilities consisted of a biological nitrogen removal (BNR) activated sludge treatment process, parallel membrane and granular media filtration processes and a biologically active filter preceded by ozone treatment, and three parallel disinfection processes: free chlorine, ozone, and UV irradiation. Twelve trace organic indicator compounds were selected to represent the treatability of a breadth of compounds. Measurements of TOrC concentrations entering and exiting each unit process were made over a period of nine months, under a range of operating conditions to assess the treatability of each compound by each process. Comparisons were made to TOrC treatability through the existing full scale plant, a high purity oxygen activated sludge (HPOAS) secondary treatment plant using chloramination for disinfection. Also available as part of your Water Inteligence Online subscription
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