System for resource recovery and zero liquid discharge treatment of wastewater generated during a precursor manufacturing process for a cathode active material of secondary battery

Abstract

Disclosed is a system for treating wastewater containing heavy metals and high-concentration ammonia generated during a manufacturing process for a cathode active material precursor of a secondary battery. According to one aspect of the present disclosure, there is provided a system for zero liquid discharge (ZLD) treatment of wastewater generated during a manufacturing process for a cathode active material precursor of a secondary battery, the system including: an ammonia stripping unit configured to remove an ammonia component from wastewater generated during the precursor manufacturing process; an ion exchange (IX) unit configured to remove metal ions; a chemical recovery unit configured to recover an acid solution and an alkaline solution; and a water reclamation unit configured to produce, from the wastewater from which the acid solution and the alkaline solution have been recovered, reclaimed water for use in the system.

Dependencies are inferred from the claim text.