Determining TOC in Power Plant Waters

Waters within power plants, and particularly boiler feed waters are subject to strict analytical control. Organic impurities in the boiler feed water can easily be oxidized under high pressure and high temperatures, and may lead to the formation of corrosive organic acids and carbonic acid. Salts are often added as oxygen scavengers.TOC monitoring in the boiler feed water is crucial for controlling this process. In this application note, UV radiation and the dissolved oxygen in the samples analyzed were sufficient to convert all organic compounds into CO2. The results obtained were extremely reliable TOC measurements in the boiler feed water.