title: Evaluation of potential for reuse of industrial wastewater using metal-immobilized catalysts and reverse osmosis.
abstract: This report describes a novel technology of reusing the wastewater discharged from the display manufacturing industry through an advanced oxidation process (AOP) with a metal-immobilized catalyst and reverse osmosis (RO) in the pilot scale. The reclaimed water generated from the etching and cleaning processes in display manufacturing facilities was low-strength organic wastewater and was required to be recycled to secure a water source. For the reuse of reclaimed water to ultrapure water (UPW), a combination of solid-phase AOP and RO was implemented. The removal efficiency of TOC by solid-phase AOP and RO was 92%. Specifically, the optimal acid, pH, and H2O2 concentrations in the solid-phase AOP were determined. With regard to water quality and operating costs, the combination of solid-phase AOP and RO was superior to activated carbon/RO and ultraviolet AOP/anion polisher/coal carbon.
authors.affiliation: R&D Center, Samsung Engineering Co. Ltd., 415-10 Woncheon-Dong, Youngtong-Gu, Suwon, Gyeonggi-Do 443-823, South Korea.
authors.forename: Jeongyun
authors.initials: J
authors.lastname: Choi
authors.affiliation: R&D Center, Samsung Engineering Co. Ltd., 415-10 Woncheon-Dong, Youngtong-Gu, Suwon, Gyeonggi-Do 443-823, South Korea. Electronic address: jin-wook.chung@samsung.com.
authors.forename: Jinwook
authors.initials: J
authors.lastname: Chung
mesh_terms: D002244:Carbon / Q000032:analysis; D002384:Catalysis; D005374:Filtration; D006861:Hydrogen Peroxide / Q000032:analysis; D008670:Metals / Q000737:chemistry; D009995:Osmosis; D010084:Oxidation-Reduction; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000191:economics / Q000379:methods*; D060753:Water Quality / Q000592:standards
chemical_list: D002244:Carbon; D006861:Hydrogen Peroxide; D008670:Metals; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Advanced oxidation process (AOP); Display wastewater; Hydrogen peroxide (H(2)O(2)); Metal-immobilized catalyst; Reverse osmosis (RO)