화학공학소재연구정보센터
HWAHAK KONGHAK, Vol.36, No.2, 223-228, April, 1998
전기삼투에 의한 활성탄 속의 Cadmium 제거
Removal of Cadmium in Activated Carbon by Electro-osmosis
초록
활성탄의 재생 목적으로 cadmium 흡착 활성탄에 대하여 용출액을 염산 수용액으로 하여 정전류 조건에서 전기삼투 실험을 수행하였다. 전기삼투투과 계수, 전기삼투 물-이동 효율 및 겉보기 전기전도도의 값은 시간에 따라 변화하고 H+ 이온은 양극에서 음극 쪽으로 이동하며 cadmium 제거효율은 90% 이상임을 알 수 있었다.
For the purpose of activated carbon regeneration, electro-osmosis tests were conducted on activated carbon specimens loaded with cadmium under constant currents using hydrochloric acid aqueous solution as a purge solution. Electro-osmotic permeability, electro-osmotic water-transport efficiency and apparent conductivity values were time-dependent. The results show that H+ ions move from anode to cathode compartment and the cadmium removal efficiency is over 90%.
  1. Rajeshwar K, Ibanez JG, Swain GM, J. Appl. Electrochem., 24(11), 1077 (1994)
  2. Lockhart NC, Colloids Surf., 6, 229 (1983) 
  3. Buijs PJ, Van Diemen AJG, Stein HN, Colloids Surf. A: Physicochem. Eng. Asp., 85, 29 (1994) 
  4. Bowen WR, Sabuni HA, Ind. Eng. Chem. Res., 33(5), 1245 (1994) 
  5. Ferguson JF, Nelson P, Proceedings, Workshop on Electrokinetic Treatment and Its Applications in Environmental-Geotechnical Engineering for Hazardous Waste Site Remediation, Seattle, Wash. Sect V, 1 (1986)
  6. Lageman R, Pool W, Sebsinge G, Chem. Ind., 18(9), 585 (1989)
  7. Shapiro AP, Probstein RF, Environ. Sci. Technol., 27(2), 283 (1993) 
  8. Bruell CJ, Segal BA, Walsh MT, J. Environ. Eng., 118(1), 68 (1992)
  9. Acar YB, Gale RJ, J. Geotech. Eng.-ASCE, 118(1), 1837 (1992)
  10. Kim BU, Yoon JM, J. Res. Inst. Ind. Technol., 50, 127 (1996)
  11. Shaw DJ, "Colloid and Surface Chemistry," 4th ed. Butterworth-Heinemann, London, 174 (1989)
  12. Hamed J, Acar YB, Gale RJ, J. Geotech. Eng., 117(2), 241 (1991)
  13. Yuki N, Ohsaki K, Jpn. Kokai, 73(95), 994 (1973)
  14. Dobrowolski R, Jaronilc M, Kosmulski M, Carbon, 24, 15 (1986) 
  15. Putnam G, M.S. Thesis, Louisiana State Univ. (1991)
  16. Renauld PO, Probstein RF, Physicochem. Hydrodyn., 9(1-2), 345 (1987)
  17. Burton AS, Clifford JB, J. Environ. Eng., 118(1), 84 (1992)
  18. Acar YB, Hamed JT, Alshawabke AN, Gale RJ, Geotechnique, 44(2), 239 (1994)