Comparison of AOC and BDOC with Surrogates for Determining Nutrients in UK Drinking Water

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Measurements of nutrients in drinking water is currently carried out by one of two approaches, Assimilable Organic Carbon (AOC) or Biodegrable Dissolved Organic Carbon (BDOC). These approaches have evolved different analytical techniques. There was concern that the use of different methods may account for the apparent differences between typical AOC concentrations quoted for treated waters in the UK and those in mainland Europe. This work compared the KIWA AOC method with methods used in the UK for AOC and BDOC. Potential surrogates for AOC and BDOC were investigated. Waters from treatment works were monitored for nutrient content over a 24 hour period to investigate variability due to variation in flowrate. A desk study of the feasibility of reducing nutrients in water using current UK drinking water treatment practices was assessed. Substantial differences were found between methods carried out at different laboratories and between methods carried out at each laboratory. No surrogates were found for BDOC bu



UKWIR Reference :- 95/DW/03/2Published Date :- 17/04/2002
Retail Price (£) :- 10ISBN :- 1 84057 043 1