Removal of Lead from Lead-loaded Activated Carbon Using Water Electrolysis

물의 전기분해를 이용한 납-흡착 활성탄으로부터 납의 제거

  • Kim, Bu Ung (Division of Chemical Engineering, Pusan National University) ;
  • Sung, Kyoung Sik (Division of Chemical Engineering, Pusan National University) ;
  • Choi, Yeon Seok (Department of Thermal Fluid & Environment, Korea Inst. of Machinery and Materials)
  • 김부웅 (부산대학교 응용화학공학부) ;
  • 성경식 (부산대학교 응용화학공학부) ;
  • 최연석 (한국기계연구원 열유체환경연구부)
  • Received : 1999.07.12
  • Accepted : 1999.09.08
  • Published : 1999.10.10

Abstract

Under the condition of water electrolysis in aqueous hydrochloric acid as the electrolyte, the lead removal from the lead-loaded activated carbon packed on the anode was investigated. The adequate flow condition is a total flow rate of 10 mL/min in the same flow rate ratio to both electrodes. The increase of current decreases pH values at the anode and the decrease of pH leads to the lead removal. This work shows that the water electrolysis is an efficient method for the lead removal from the lead-loaded activated carbon with a reduction in quantity of the chemical used in comparison with the acid rinse.

Keywords

lead removal;water electrolysis;activated carbon;lead;hydrochloric acid

Acknowledgement

Supported by : 부산대학교

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