이온교환법에 의한 탈질소 공정개발의 기초연구(VI)- 작용기의 입체효과에 따른 NO3-/SO42-의 선택성 변화

이동환; 이민규; Dong-Hwan Lee; Min-Gyu Lee

Journal of the Korean Industrial and Engineering Chemistry, Vol.15, No.8, 850-854, December, 2004

이온교환법에 의한 탈질소 공정개발의 기초연구(VI)- 작용기의 입체효과에 따른 NO₃^-/SO₄^2-의 선택성 변화

Basic Study for Development of Denitrogenation Process by Ion Exchange Resin (VI) - Variation of NO₃^-/SO₄^2- Selectivity Depending upon Steric Effect of Functional Group -

이동환 , 이민규 ^{1, †}

동의대학교 물질과학부 및 기초과학연구소, 부산 614-714
¹부경대학교 응용화학공학부, 부산 608-739

Dong-Hwan Lee , and Min-Gyu Lee^{1, †}

Division of Material Science & Reseach Institute of Basic Sciences, Dongeui University, Busan 614-714, Korea
¹Division of Applied Chemical Engineering, Pukyong National University, Busan 608-739, Korea

E-mail:

초록

클로로메틸화된 폴리스티렌-디비닐벤젠 담체를 출발물질로 사용하여 에탄올 용매 중에서 입체적으로 bulky한 3차 아민을 반응시켜 이 아민을 작용기로 가지는 이온교환수지들 [NR₃ = NPr₃[N(CH₂CH₂CH₃)₃] (IX-3), NBu₃[N(CH₂CH₂CH₂CH₃)₃] (IX-4), NPe₃ [N(CH₂CH₂CH₂CH₂CH₃)₃] (IX-5)을 합성하였다. NMe₃[N(CH₃)₃]을 작용기로 가지는 시판 이온 교환수지(IX-1)의 경우에는 NO_3-보다 SO₄^2- 제거에 우수한 선택성을 나타낸 반면 합성한 이온교환수지들 (IX-3), (IX-4), 그리고 (IX-5)는 SO₄^2-보다 NO₃^- 제거에 현저히 뛰어난 선택성을 나타내었다. NO₃^-와 SO₄^2-가 1:1로 혼합된 낮은 농도의 혼합액을 사용하여 이온교환수지의 작용기의 종류에 따른 NO₃^-의 제거 성능은 NPr₃ > NBu₃ > NEt₃ > NMe₃ > NPe₃로 나타났다.

Nitrate-selective ion exchange resines which have bulky triallkyl amine [NR₃ = NPr₃[N(CH₂CH₂CH₃)₃] (IX-3), NBu₃ [N(CH₂CH₂CH₂CH₃)₃] (IX-4), NPe₃[N(CH₂ CH₂CH₂CH₂CH₃)₃] (IX-5) as functional group have been synthesized by the reaction of chloromethylated polystyrene-divinylbenzene copolymer and the corresponding trialkyl amine in ethanol. Synthesized resines, (IX-3), (IX-4), and (IX-5) appeared to be more nitrate selective while commericial resin (IX-1) having NMe₃[N(CH₃)₃] as functional group showed sulfate selective in low concentration of NO₃^-/SO₄^2-(1:1) mixed solution. The functional group of ion exchange resin for the effective NO₃^- removal was in the order of NPr₃>NBu₃>NEt₃>NMe₃>NPe₃

Keywords:ion exchange;nitrate-selective resin;selectivity;nitrate removal;tripropylamine

[References]

Sorg TJ, EPA seminar on Nitrate in Groundwater, Kansas City Mo, 3~4 October (1979)
Barnard JL, J. Wat. Pollut. Cont., 72, 705 (1973)
Guter GA, Removal of nitrate from contaminated water supplies for public use, EPA-600/S2-82-042, U.S. EPA, Cincinnati, Ohaio (1982)
Miquel AF, Oldani M, Nitrate contamination: Exposure, consequence and control, 385. Springer-Verlag, Berlin, Germany (1991)
Hoek JP, Klapwijk A, Water Res., 21(8), 989 (1987)
Hoell WH, Ion Exchange Technology, 271, Technomic Publishing Co. (1995)
Clifford D, Liu X, J. AWWA, 85(4), 135 (1993)
Deguin A, Perot J, Nauleau F, Water Supply, 19(3), 161 (1992)
Korngold E, Water Air Soil Pollut., 2, 15 (1973)
Lee DH, Kim SI, Jun JH, Park CY, Lee MG, J. Environ. Sci., 9, 319 (2000)
Huheey JE, Keither EA, Keither RL, Inorganic Chemistry, 4, 341, Haper Collins College Publisher (1993)
Huheey JE, Keither EA, Keither RL, Inorganic Chemistry, 4, 118, Haper Collins College Publisher (1993)
Weber WT, Physicochemical Processes for Water Quality Control, Wiley, New York (1972)

[Related Articles]

[1] Sorg TJ, EPA seminar on Nitrate in Groundwater, Kansas City Mo, 3~4 October (1979)

[2] Barnard JL, J. Wat. Pollut. Cont., 72, 705 (1973)

[3] Guter GA, Removal of nitrate from contaminated water supplies for public use, EPA-600/S2-82-042, U.S. EPA, Cincinnati, Ohaio (1982)

[4] Miquel AF, Oldani M, Nitrate contamination: Exposure, consequence and control, 385. Springer-Verlag, Berlin, Germany (1991)

[5] Hoek JP, Klapwijk A, Water Res., 21(8), 989 (1987)

[6] Hoell WH, Ion Exchange Technology, 271, Technomic Publishing Co. (1995)

[7] Clifford D, Liu X, J. AWWA, 85(4), 135 (1993)

[8] Deguin A, Perot J, Nauleau F, Water Supply, 19(3), 161 (1992)

[9] Korngold E, Water Air Soil Pollut., 2, 15 (1973)

[10] Lee DH, Kim SI, Jun JH, Park CY, Lee MG, J. Environ. Sci., 9, 319 (2000)

[11] Huheey JE, Keither EA, Keither RL, Inorganic Chemistry, 4, 341, Haper Collins College Publisher (1993)

[12] Huheey JE, Keither EA, Keither RL, Inorganic Chemistry, 4, 118, Haper Collins College Publisher (1993)

[13] Weber WT, Physicochemical Processes for Water Quality Control, Wiley, New York (1972)