Electrochemical reductive extraction of copper from LCD manufacturing process and through hole plating process for PCB circuit board wastewater was experimented using synthetic wastewater. Copper plate which could be used as raw material through melting with extracted copper from wastewater and graphite plate were used as a cathode and an anode, respectively. The copper extraction could be optimized in pH 2 and polar space of 45mm. The extraction rate of copper per unit energy was decreased as HRT increased and initial copper concentration decreased. As the optimal HRTs which could maximize the productivity for copper on energy, 80 ~ 110 min at 50 mg/L, 64 min at 1,000 mg/L and 77 ~ 98 min at 3,000 mg/L were determined, respectively.

• 권상우(㈜ 에코앤파워) | Sang-Woo Kwon
• 최병운(㈜ 에코앤파워) | Byeong-Woon Choi
• 박우민(영남대학교 환경공학과) | Woo-Min Park
• 전관수(영남대학교 환경공학과) | Kwan-Soo Ju Corresponding author