CentraSep installed a centrifugal liquid solid separator and put it to work removing the zinc phosphate from the process water
CentraSep installed a centrifugal liquid solid separator and put it to work removing the zinc phosphate from the process water
4 PagesZinc Phosphate Case Study – Precoat Metals Zinc Phosphate Sludge Removal The Company Since 1962, Precoat Metals has been a leading supplier of metal coil-coating services. Precoat’s business is to apply protective and decorative coatings to customer’s coils of steel and aluminum, using a continuous process coating line. In fact, with nine coating lines at seven plant locations, Precoat is one of the largest metal coil-coating companies in the world. The Problem On Precoat’s coil-coating line in Houston, Texas, zinc phosphate is applied to coils of steel as a protective coating. A by-product of the coating process is a sludge formed from the zinc phosphate, water and etching compound, which ends up settling to the bottom of the coating line’s tank unit. The more sludge that accumulates, the
