Bubble Stripping 탱크에서 염소화탄화수소의 물질이동

조정식; 전해수; 박찬영

HWAHAK KONGHAK, Vol.28, No.6, 644-650, December, 1990

Export Citation

Bubble Stripping 탱크에서 염소화탄화수소의 물질이동

Mass Transfer of Chlorinated Hydrocarbons in a Bubble Stripping Tank

조정식, 전해수, 박찬영

초록

Bubble stripping 탱크를 이용한 5종류의 염소화탄화수소와 산소에 대한 물로부터의 물질이동을 연구하였다. 5종류의 염소화탄화수소와 산소의 총괄물질이동용량계수는 가스유속에 비례하였고, 염소화탄화수소의 총괄물질이동용량계수는 가스유속에 관계없이 산소에 대한 값보다 약 0.58배 작았다. 액측물질이동계수에 대한 기체측물질이동계수의 비（k_G/k_L）는 본 실험범위에서 22내외임이 추론되었고, 이 결과로부터 자연계에서 얻어 기체측저항을 무시하는데 관습적으로 사용되어온 표준값(k_G/k_L = 100)은 본 실험과 같은 인공계하에서는 재평가되어야 함을 알았다.

The mass transfer of five chlorinated hydrocarbons and oxygen from aqueous solution was studied us-ing bubble stripping tank. The overall Volumetric mass transfer coefficients for five chlorinated hydrocarbons and ox-ygen were proportional to gas flow rate. The overall volumetric mass transfer coefficients for the chlorinated hydrocar-bons were approximately 0.58times as great as those of oxygen, independent of gas flow rate. The ratio of individual phase mass transfer coefficient, k_G/k_L was inferred to be the value of ca. 22 in the regime of this experiment. It was found from this result that under the artificial system like this experiments, the criterion value(k_G/k_L=100)which was obtained from the natural system and has been used customarily in neglecting the gas-phase resistance must be reassessed.

[References]

Akita K, Yoshida F, Ind. Eng. Chem. Process Des. Dev., 12, 76 (1973)
Cho JS, Wakao N, Chem. Eng. Commun., 56, 139 (1987)
Cho JS, Wakao N, HWAHAK KONGHAK, 25(6), 578 (1987)
Cho JS, Wakao N, J. Chem. Eng. Jpn., 21, 576 (1988)
Dilling WB, Environ. Sci. Technol., 4, 405 (1977)
Gossett JM, Environ. Sci. Technol., 21, 202 (1987)
Hikita H, Asai S, Tanigawa K, Segawa K, Kitao M, Chem. Eng. J., 22, 61 (1981)
Hughmark GA, Ind. Eng. Chem. Process Des. Dev., 6, 218 (1967)
Liss PS, Slater PG, Nature, 247, 181 (1974)
Mackay D, Leinonen PJ, Environ. Sci. Technol., 9, 1178 (1975)
Mackay D, Shiu WY, Sutherland RP, Environ. Sci. Technol., 13, 333 (1979)
Matter-Muller C, Gujer W, Giger W, Water Res., 15, 1271 (1981)
Reid RC, Prausnitz JM, Sherwood TK, "The Properties of Gases and Liquids," 3rd ed., McGraw-Hill, New York (1977)
Shah YT, Kelker BG, Godbole SP, Deckwer WD, AIChE J., 28, 353 (1982)
Smith JH, Bomberger DC, Haynes DL, Environ. Sci. Technol., 14, 1332 (1980)
Smith JH, Bomberger DC, Haynes DL, Chemosphere, 10, 281 (1981)
Treadwell FT, Hall WT, "Analytical Chemistry," II, Wiley, New York (1942)

[1] Akita K, Yoshida F, Ind. Eng. Chem. Process Des. Dev., 12, 76 (1973)

[2] Cho JS, Wakao N, Chem. Eng. Commun., 56, 139 (1987)

[3] Cho JS, Wakao N, HWAHAK KONGHAK, 25(6), 578 (1987)

[4] Cho JS, Wakao N, J. Chem. Eng. Jpn., 21, 576 (1988)

[5] Dilling WB, Environ. Sci. Technol., 4, 405 (1977)

[6] Gossett JM, Environ. Sci. Technol., 21, 202 (1987)

[7] Hikita H, Asai S, Tanigawa K, Segawa K, Kitao M, Chem. Eng. J., 22, 61 (1981)

[8] Hughmark GA, Ind. Eng. Chem. Process Des. Dev., 6, 218 (1967)

[9] Liss PS, Slater PG, Nature, 247, 181 (1974)

[10] Mackay D, Leinonen PJ, Environ. Sci. Technol., 9, 1178 (1975)

[11] Mackay D, Shiu WY, Sutherland RP, Environ. Sci. Technol., 13, 333 (1979)

[12] Matter-Muller C, Gujer W, Giger W, Water Res., 15, 1271 (1981)

[13] Reid RC, Prausnitz JM, Sherwood TK, "The Properties of Gases and Liquids," 3rd ed., McGraw-Hill, New York (1977)

[14] Shah YT, Kelker BG, Godbole SP, Deckwer WD, AIChE J., 28, 353 (1982)

[15] Smith JH, Bomberger DC, Haynes DL, Environ. Sci. Technol., 14, 1332 (1980)

[16] Smith JH, Bomberger DC, Haynes DL, Chemosphere, 10, 281 (1981)

[17] Treadwell FT, Hall WT, "Analytical Chemistry," II, Wiley, New York (1942)