Innovation

The plant uses grey water in its cooling tower, which reduces the plant’s freshwater use. But grey water can carry high concentrations of calcium, sulfate and chloride, which contribute to scaling and performance issues. Nalco Water conducted studies to determine the optimal cycles of chemical concentration in the cooling tower to minimise water use and avoid scaling. The team implemented 3D TRASAR™ Technology for Cooling Water to reduce scaling which included continuous monitoring of performance from a remote control room and the application of cutting-edge chemical products. “Nalco Water has unique polymers that work via charge reinforcement to carry impurities out of a cooling tower before they settle as scale and deposits,” said Fernando Garcia, district manager, Nalco Water.