b'GENERAL INFORMATION When plumbing drainage systems that contain the When plumbing drainage systems contain the discharge of corrosive, toxic anddischarge of corrosive, toxic flammable wastes, special attention should be placed in treating the waste.and flammable wastes, special Untreated waste can physically damage a buildings plumbing system as well asattention should be placed in the environment. Hospitals, laboratories and industrial plants with this type oftreating the flow. Such untreated wastewater are common applications that require the treatment.waste can physically damage buildings plumbing system The ParkUSA LabTank Neutralization Tank is designed so that acidic waste isas well as the environment. collected and passed through the tank prior to discharging into the sanitaryLaboratories and industrial plants sewer system. The waste is chemically neutralized within the unit. It is importantare common applications that to note that the tank is an acid neutralizer. For optimal tank performance it isrequire the treatment of this type not recommended that acidic waste be further diluted prior to neutralization.of waste. Therefore, all acidic effluent should be gathered separately from other non-acidic waste and non-acidic waste should bypass the neutralization tank." The ANTC model present a steel shell with a ceramic brick interior liner, it provides efficient neutralization when the flow presents highly acidic waters.The ParkUSA Ceramic Lined Acid Tank is an excellent choice when standardacid resistant materials are not enough (i.e. epoxy coatings, fiberglass or plastics). The ceramic liner offers permanent protection even in the harshest corrosive environments and is designed to last the life of the building. The key to this kind of durability is the internal ceramic liner. Made up of an impermeable membrane overlaid with acid proof brick, this type of liner hasa long history of performance where resistance to liquid and gaseous acid mediais present. In the Pulp & Paper Industry, the brick is the preferred material of choice for lining bleach towers, generating tanks and waste acid tanks.The acid proof brick is manufactured from a blend of selected clays withcontrolled particle size, fully de-aired and fired to vitrification at 1121 degrees Celsius. This assures an exceptionally dense and highly vitrified brick whichmeets ASTM C279 Type H specifications.OPERATIONThe Acid Neutralization Tank Model ANTC is a special model available.Operation occurs following chemical processes. Acids and alkalies can be neutralized, rendering them harmless. The degree of neutralization can be measured by the pH system (concentration of hydrogen ion). Acid pH valuesrange from zero to 6.99, a neutral solution is seven and alkalies range from7.01 to 14. The smaller the pH value, the higher the content of acidic waste.The larger the pH value the higher the content of alkaline waste. The neutralization process occurs by the chemical reaction of calcium and magnesium carbonate with the acidic waste. The pH value is increased to 6.0 - 8.0. This range of pHin the neutralized effluent is generally acceptable for discharge into publicsewer systems.386'