R.J. Reynolds Tobacco Company in Winston-Salem, North Carolina, operates a plating shop that produces chrome-plated cylinders that are etched by a proprietary mechanical process. The finished cylinders are then inked and used in the printing presses.
Wastewater contami-nates include Ar, Ba, Cd, Cr, Cu, Pb, Se, Ag and Zn.
Waste Disposal Goals
The company’s waste disposal goal was to reuse wastewater in the plating process or discharge it into the sewer permit free.
Wastewater Treatment Challenge
After the printing run is complete, the cylinders are chrome stripped, cleaned, resurfaced, plated then etched with a different pattern, producing wastewater from the cylinder engraving plating facility.
ThermoEnergy (formerly CASTion) installed a CAST 1500 Flash Distillation System (acid resistant) with a 1500-gallon-per-day capacity (input) GAC and Service Deionization Cylinders. The CAST distillate is post treated with GAC and SDI. The resulting product is of high quality (1-5 Mega-ohm resistivity) and can either be reused in the plating process or discharged to the sewer permit free. The concentrate from the CAST system is re-moved as F-006 waste.
R.J. Reynolds Tobacco Company - case study