Recovery of Precious Metals in Plating Rinsed Wastewater Generated from Lead Frame Manufacturing Process

Lead Frame 제조공정에서 발생되는 도금세정폐수 중 유가금속회수

  • Kim, Jae-Yong (Department of Environmental Engineering, Chungbuk National University) ;
  • Um, Myeong-Heon (Division of Chemical Engineering, Kongju National University) ;
  • An, Dae-Hyun (Department of Environmental Engineering, Chungbuk National University) ;
  • Shim, Myeong-Jin (Department of Environmental Engineering, Chungbuk National University)
  • 김재용 (충북대학교 환경공학과) ;
  • 엄명헌 (공주대학교 화학공학부) ;
  • 안대현 (충북대학교 환경공학과) ;
  • 심명진 (충북대학교 환경공학과)
  • Received : 2005.09.09
  • Accepted : 2006.07.28
  • Published : 2006.08.10

Abstract

The object of this experiment is to recover precious metals from plating rinsed wastewater generated from Lead Frame manufacturing process using electrolysis coupled hybrid process. This was achieved from Amberlite IRA 400 at 1.15 V electrolysis potential using the oxide electrode and at 1.30 V using the Al electrode and from Amberlite IRA 402 at 1.10 V using the oxide electrode and at 1.20 V using the Al electrode. During the first 10~30 min of the process, 90~95% of the silver can be recovered.

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