여러 가지 광물 흡착제에 의한 기체상 카드뮴의 고온흡착특성

윤종성; 강용; 양희철; 강문자; 김준형; Jong-Sung Yun; Yong Kang; Hee-Chul Yang; Mun-Ja Kang; Joon-Hyung Kim

HWAHAK KONGHAK, Vol.41, No.2, 264-270, April, 2003

Export Citation

여러 가지 광물 흡착제에 의한 기체상 카드뮴의 고온흡착특성

High Temperature Adsorption Characteristics of Gaseous Cadmium by Various Mineral Sorbents

윤종성, 강용 , 양희철 ^{1, †}, 강문자¹, 김준형¹

충남대학교 화학공학과, 305-764 대전시 유성구 궁동 220
¹한국원자력연구소 핵연료주기 기술개발단, 305-353 대전시 유성구 덕진동 150

Jong-Sung Yun, Yong Kang , Hee-Chul Yang^{1, †}, Mun-Ja Kang¹, and Joon-Hyung Kim¹

Department of Chemical Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, Korea
¹Nuclear Fuel Cycle R&D Group, Korea Atomic Energy Research Institute, 150, Deokjin-dong, Yuseong-gu, Daejeon 305-353, Korea

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초록

기체상 염화카드뮴에 대한 7가지 무기흡착제의 제거특성을 고온 고정층 반응기를 이용하여 고찰하였다. 사용된 흡착제는 알루미나(alumina), 보오크사이트(bauxite), 안달루사이트(andalusite), 샤못트(chamotte), 고령토(kaolin), 납석(pyrophyllite) 그리고 규석(silica)이다. 카드뮴 제거에는 고령토, 샤못트 및 규석이 상대적으로 뛰어난 특성을 지닌 것을 알 수 있었다. 이들에 의해 흡착된 카드뮴은 TCLP 용출실험에 의해서 쉽게 용출되지 않는 우수한 침출특성을 지니고 있었다. 반응생성물에 대한 분석으로부터 고온무기흡착제를 이용한 카드뮴 제거에 대한 다음의 세가지 메커니즘이 제시되었다: 1) 불용성 물질(CdOㆍSiO2, CdOㆍAl2O3ㆍ2SiO2)을 생성하는 화학적 흡착반응, 2) 수용성 물질인 CdCl2로의 물리흡착, 3) 흡착제 표면에 불용성 물질인 CdO의 형성.

The characteristics of seven inorganic sorbents for the capture of gaseous cadmium chlorides were investigated using a high-temperature fixed bed sorption reactor. The investigated sorbents were alumina, bauxite, andalusite, chamotte, kaolin, pyrophyllite and silica stone. Kaolin, chamotte and silica stone appeared to be the relatively promising sorbents for cadmium capture. Sorbed cadmium by those minerals was not easily leached by TCLP extraction. From the analyses of post-sorption sorbent samples, three kinds of capturing mechanisms for cadmium capture by high temperature inorganic sorbents were suggested: 1) chemical reaction to form water-insoluble cadmium-mineral complexes such as CdO · SiO2 and CdO ·Al2O3 · 2SiO2, 2) physical adsorption of gaseous chloride to form water-soluble cadmium chloride(CdCl2), and 3) formation of water-insoluble cadmium oxide(CdO) on sorbent surface.

Keywords:Inorganic Sorbents;Cadmium Chloride;High Temperature Fixed Bed;Leachability;Reaction Mechanism

[References]

Davison RL, Natusch DFS, Wallace JR, Environ. Sci. Technol., 8(13), 1107 (1974)
Barton RG, Clark WD, Seeker WR, Combust. Sci. Technol., 74(5), 327 (1990)
Yang HC, Kim JH, Oh WJ, Park HS, Seo YC, Environ. Eng. Sci., 14(4), 299 (1998)
Yang HC, Seo YC, Kim JH, Park HH, Kang Y, Korean J. Chem. Eng., 11(4), 232 (1994)
Wang KS, Chiang KY, Lin SM, Tsai CC, Sun CL, Chemosphere, 38(8), 1833 (1999)
Korzun EA, Heck HH, J. Air Waste Manage. Assoc., 40(9), 1120 (1990)
Eddings EG, Lighty JS, Kozinski JA, Environ. Sci. Technol., 28(11), 1791 (1994)
Davison RL, Natusch DFS, Wallace JR, Environ. Sci. Technol., 8(13), 1107 (1974)
Ghosh-Dastidar A, Mahuli S, Agnihotri R, Fan LS, Environ. Sci. Technol., 30(2), 447 (1996)
Ho TC, Tan L, Chen C, Hopper JR, AIChE Symp. Ser., 87(281), 118 (1991)
Ho TC, Chen C, Hopper JR, Oberacker DA, Combust. Sci. Technol., 85(4), 101 (1992)
Ho TC, Wang SK, Hopper JR, "Effects of Chlorine and Sulfur on Metal Capture by Sorbents During Fluidized Bed Incineration," Proc. of 1996 International Conf. on IT3, Savannah, Georgia, U.S.A., 415 (1996)
Lee HT, Ho TC, Hsiao CC, Bostick WD, "Study of Metal Volatilization from Contaminated Soil in a Fluidized Bed Incinerator," Proc. of 1996 International Conf. on IT3, Savannah, Georgia, U.S.A., 561 (1995)
Mahuli S, Agnihotri R, Chauk S, Ghosh-Dastidar A, Fan LS, Environ. Sci. Technol., 31(11), 3226 (1997)
Carrol GJ, Venkatesh S, "The Relative Effectiveness for Mineral-Based Sorbent For Metal Capture in a Bench-Scale Incinerator," Abstract Proceedings of 21st Annual RREL Research Symposium, EPA/600/R-95/012, 84-85 (1995)
Uberoi M, Punjak WA, Shadman F, Prog. Energy Combust. Sci., 16(4), 205 (1990)
Masseron R, Gadiou R, Delfosse L, Environ. Sci. Technol., 33(20), 3634 (1999)
Uberoi M, Punjak WA, Shadman F, AIChE J., 35, 1186 (1989)
Uberoi M, Shadman F, Environ. Sci. Technol., 25(7), 1285 (1991)
Chen JC, Wey MY, Lin YC, Chemosphere, 37(13), 2617 (1998)
Linak WP, Wendt JOL, Prog. Energy Combust. Sci., 19(2), 145 (1993)
Perdek J, Randall Seeker W, "Reactor Filter System," Superfund Innovative Technology Evaluation Program, EPA/540/R-94/526, Nov., 332-333 (1994)
Yang HC, Yun JS, Kang MJ, Kang Y, Kim JH, Korean J. Chem. Eng., 19(6), 1037 (2002)
Yang HC, Yun JS, Kang MJ, Kang Y, Kim JH, J. Environ. Sci. Health Part A-Toxic/Hazard. Subst. Environ. Eng., 36(9), 1689 (2001)
Yang HC, Yun JS, Kang MJ, Kim JH, Kang Y, Korean J. Chem. Eng., 18(4), 499 (2001)
Yang HC, Yun JS, Kang MJ, Kim JH, Kang Y, Korean J. Chem. Eng., 16(5), 646 (1999)

[Related Articles]

[1] Davison RL, Natusch DFS, Wallace JR, Environ. Sci. Technol., 8(13), 1107 (1974)

[2] Barton RG, Clark WD, Seeker WR, Combust. Sci. Technol., 74(5), 327 (1990)

[3] Yang HC, Kim JH, Oh WJ, Park HS, Seo YC, Environ. Eng. Sci., 14(4), 299 (1998)

[4] Yang HC, Seo YC, Kim JH, Park HH, Kang Y, Korean J. Chem. Eng., 11(4), 232 (1994)

[5] Wang KS, Chiang KY, Lin SM, Tsai CC, Sun CL, Chemosphere, 38(8), 1833 (1999)

[6] Korzun EA, Heck HH, J. Air Waste Manage. Assoc., 40(9), 1120 (1990)

[7] Eddings EG, Lighty JS, Kozinski JA, Environ. Sci. Technol., 28(11), 1791 (1994)

[8] Davison RL, Natusch DFS, Wallace JR, Environ. Sci. Technol., 8(13), 1107 (1974)

[9] Ghosh-Dastidar A, Mahuli S, Agnihotri R, Fan LS, Environ. Sci. Technol., 30(2), 447 (1996)

[10] Ho TC, Tan L, Chen C, Hopper JR, AIChE Symp. Ser., 87(281), 118 (1991)

[11] Ho TC, Chen C, Hopper JR, Oberacker DA, Combust. Sci. Technol., 85(4), 101 (1992)

[12] Ho TC, Wang SK, Hopper JR, "Effects of Chlorine and Sulfur on Metal Capture by Sorbents During Fluidized Bed Incineration," Proc. of 1996 International Conf. on IT3, Savannah, Georgia, U.S.A., 415 (1996)

[13] Lee HT, Ho TC, Hsiao CC, Bostick WD, "Study of Metal Volatilization from Contaminated Soil in a Fluidized Bed Incinerator," Proc. of 1996 International Conf. on IT3, Savannah, Georgia, U.S.A., 561 (1995)

[14] Mahuli S, Agnihotri R, Chauk S, Ghosh-Dastidar A, Fan LS, Environ. Sci. Technol., 31(11), 3226 (1997)

[15] Carrol GJ, Venkatesh S, "The Relative Effectiveness for Mineral-Based Sorbent For Metal Capture in a Bench-Scale Incinerator," Abstract Proceedings of 21st Annual RREL Research Symposium, EPA/600/R-95/012, 84-85 (1995)

[16] Uberoi M, Punjak WA, Shadman F, Prog. Energy Combust. Sci., 16(4), 205 (1990)

[17] Masseron R, Gadiou R, Delfosse L, Environ. Sci. Technol., 33(20), 3634 (1999)

[18] Uberoi M, Punjak WA, Shadman F, AIChE J., 35, 1186 (1989)

[19] Uberoi M, Shadman F, Environ. Sci. Technol., 25(7), 1285 (1991)

[20] Chen JC, Wey MY, Lin YC, Chemosphere, 37(13), 2617 (1998)

[21] Linak WP, Wendt JOL, Prog. Energy Combust. Sci., 19(2), 145 (1993)

[22] Perdek J, Randall Seeker W, "Reactor Filter System," Superfund Innovative Technology Evaluation Program, EPA/540/R-94/526, Nov., 332-333 (1994)

[23] Yang HC, Yun JS, Kang MJ, Kang Y, Kim JH, Korean J. Chem. Eng., 19(6), 1037 (2002)

[24] Yang HC, Yun JS, Kang MJ, Kang Y, Kim JH, J. Environ. Sci. Health Part A-Toxic/Hazard. Subst. Environ. Eng., 36(9), 1689 (2001)

[25] Yang HC, Yun JS, Kang MJ, Kim JH, Kang Y, Korean J. Chem. Eng., 18(4), 499 (2001)

[26] Yang HC, Yun JS, Kang MJ, Kim JH, Kang Y, Korean J. Chem. Eng., 16(5), 646 (1999)