;Savannah Air Center, Savannah GA.
Problem Savannah Air Center, a jet aviation company, located in Savannah, GA, is a full-service aviation center offering corporate aircraft operators the highest quality maintenance, avionics installation and interior/exterior design and refurbishments. The waste stream generated during the operation of the plant in an acidic liquid (pH ~4.0) characterized by a high chemical oxygen demand (COD) and high hexavalent chromium concentrations (~30-50ppm). Approximately 5,500 gallons of hazardous industrial waste water is generated from each plane refurbishment that must be transport and disposed off at high cost.
Solution USERRG developed a two step treatment system that initially satisfies the chemical oxygen demand and results in the reduction of hexavalent chromium to its trivalent oxidation state. Step 2 results in the co-precipitation of chromium by WP-1™ adsorbent and the subsequent neutralization of the waters acidity to pH ~7.5. Following treatment the water can be pumped, hauled and disposed off at a non-hazardous facility without the need for additional treatment, containment or storage.
Results Implementation of USERRG’s operational procedure resulted in a dramatic decrease in hexavalent chromium concentrations from 31.5 mg/l to 1.5 mg/l (95% reduction) in 8 hours. COD is typically reduced from >1500 mg/l to less than 50 mg/l (97% reduction).
Before WP-1™
After WP-1™