A second set of columns is provided to allow for continuous operation during resin regeneration. When the water quality falls below a preset point, the active column set is switched off-line and regenerated. The rinsewater feed is redirected to the standby set of columns to maintain continuous treatment. After regeneration, the spent column set is returned to service in the standby mode.
The spent regenerants are appropriately treated or sent concentration through an evaporator (Zero Drain discharge option) before sent off-site refining or disposal.
Metal laden regenerant from selective IX units can be directed to a separate collection tank for recirculation through our Plate Out Cell System for metal recovery. The metal free regenerant can then be discharged or evaporated along with other spent process baths. By use of the EVAP Vacuum | | Evaporation System, a closed-loop operation can be effected. IX/ER Ion Exchange / Electrolytic Recovery Wastewater Treatment Systems.
Features and Benefits
■ Microprocessor control
■ Reusable regenerant
■ Single-step metal recovery
■ Reusable cathodes
■ Handles concentrates
■ Low maintenance
■ Long-life resins
■ Complete, turnkey systems
■ Assured performance
■ Low operating costs
Kurion Ion Exchange and Electrolytic Recovery Systems (IX/ER) consistently meet low discharge limits for key toxic metals. These systems recover copper sheets for disposal or resale. The Kurion IX/ER system provides an outstanding means for | | complying with environmental discharge limits especially for printed circuit board facility wastewaters. The system achieves excellent results in removing copper from segregated streams, reliably removing the copper by ion exchange, and then recovering it in the form of a metal sheet.
Ion exchange resins normally process the majority of waste streams containing complexed copper; however, specific complexes may need to be segregated for treatment by other Kurion systems.
Consistently Meets Low Discharge Limits
The IX/ER design with two columns in a series, and regenerating as soon as the effluent from the primary column approaches the discharge limit, is designed to provide continuous environmental compliance. |
