The Water Treatment Innovation Platform of global water, energy, and maintenance solutions provider, NCH Europe, has launched aquaDART, a package of fluorescent traced water treatment products and monitoring equipment for accurately controlling the chemical dosing of water systems.
Short for Direct Analysis Response Technology (DART), aquaDART ‘continuously monitors and adjusts the water treatment programme to ensure that industrial and other large-scale water cooling systems stay free of rust, mineral scale, and microbiological contamination’. The system works in combination with fluorescent dyes to precisely maintain dosing levels within tight control parameters. Each chemical inhibitor used in the dosing regimen contains dyes in trace amounts (ppb level), making it invisible to the naked eye. An in-line fluorometer uses a beam of light to excite the fluorescent dye molecules, causing them to emit light at different wavelengths. Based on the intensity of the remitted light, the system can adjust the feed rate automatically to control the concentration of inhibitor present in the cooling water.
