附件四b 自我評估管理手冊 洗滌塔

1 I ..20 II 1 [2]..4 2 20 C 1 atm HCl a ..10 3 20 C 1 atm HF a 10 4 pH ..23 1 [3]..5 2 HCl HF NH3 KGa [4]..9 3 ..14 4 ..18 5 ..19 6 pH .. ! 3 (spary column) (plate absorption tower) (packed tower) [1] OHNaClNaClONaOHHClHClOHClHClOOHClClOHSiO NaNaOHSiOHSiOOHSiHSiHHSONHSOHNHNHOHNaFNa OHHFHF2222232222244444233222()(2(42)()() ( 4 1 (packing) 1 [2]5 1 [3] (Cross FlowScrubber)1.))

2 2. 2 5 3. (Wet Scrubber)1. 2. 3. 4. 5..1 m m (Dia-T typeScrubber)1. 2. 3. Wet CycloneScrubber1. mist dust 2. 3. VenturiScrubber1. 80 90% drop 3. Packed BedScrubber1. 100 105acfm 2. 3. 4. 6 [2] 1. (dumped packing) 2. (stacked packing) [1] (1) (2) (3) (4) (Minimum-Wetting Factor MWF) MWF=VL/a> m2/hrMWF=VL/a= m2/hr 1/3600 hr/sec= 10-5m2/sec VL= a= 7 a=95 m2/m3 VL= 10-3m/s (5)

3 30mm 95mm 1/10 1/8 [2] Tellerettes Tripack VSP Hacketten 50 83mm 92 128 m /m 90m /m (6) (Minimum-Wetting Factor MWF) a= 90m2/m3 VL= 10-3m/s (VG) m/s (flooding) (flooding point) 60 % 80 % VG= (LM/GM) LM/GM= (VL A L)/(VG A G)(1)=( 10-3 A 1000)/( A )= L G (Kg/m3) A (7) Perry s Chemical Engineers 8 Handbook[4] (Number of overallmass transfer unit NOG) HCl HF HNO3 H3PO4 H2SO4 NH3 Henry s constant NOG NOG= ln (yin/ yout)(2)yout/ yin exp (-NOG)(3) %100yy1inout %1001 OGNe(4) NOG ZT/HOG HOG GM/(KG a ), %1001 MGTGaKZe (5) ZT a HCl HF Q ZT a a a a[s-m2/m3](6) [sec]9a [m2/m3] T 20 C P 1atm % GaKe (7) KG Perry sChemicalEngineers Handbook[8] 38 mm ceramic Intalox saddles P=1atm T=16-24 C HCl HF NH3 KGa 2 a (8) KG KGa/a 2 ZT VG(8) ZT 2 HCl HF NH3 KGa [4]Gas phasereactantLiquid-phasereactantKGa(kmo l/h-m)KGa(mol/s-m3) a (7) 2 3 105060708090100306090120150180210 a(s-m2/m3)

4 2 20 C 1 atm HCl a 3040506070809010050100150200250 a(s-m2/m3) 3 20 C 1 atm HF a 3 (1) ( ) ( ) (bypass) (2) NaOH 12 pH (3) VOCS ( ) (NO3- NH4+ ) VOCS RO (4) 20 30 C 85% 90% (mist eliminator) (5) 13 pH pH 14 3 1.

5 2. 1. 2. (bypass) pH ( ) (NO3- NH4+) VOCS RO 1. 1. 2. local scrubber SiO2 3. 4. NH3 localscrubber NF3 NH3 1. pH 2. 3. 4. 1. pH 2. 3. 4. 4 pH ( ) / 5 (1) (2) (3) (4) pH (5) (6) (7) (8) (9) (10) (11) / (12)pH / (13) (1) m2 (2) m (3) 16 90m2/m3 (4) pH pH 7 (5) m3/hr (6) m3/hr (7) /( ) m2/hr ( ) (8)

6 Sec (9) in-H2O (10) (11) / / (12)pH / pH / 17(13) 18 4 1. ( )2. ( )3. ( )4. pH ( )5. ( ) ( )6. ( )7. / ( )19 5 A006 92 08 pH 45 (14)pH 92/08 92/08 HCl, HF, HNO392/08 Tellerette92/08 1975ppm92/08 180ppm92/08 92/08 (1) m292/08 (2) m92/08 (3) 95 m2/m392/08 (4) pH (5) 15000 m3/ hr92/08 (6) 30 m3/ hr(7) (8) sec (9) in-H2O(10) s/cm(15) (11) / 92/08/12(16) (12)pH / 92/08/12(17) (13) 92/08/12(18) (19) / (20) / (21) / (22) 10 / (23) 45 / =(23) =(18) =(17)(7) (> )=(6)/ (1) (3) (8) (> )=3600 (1) (2)/(5)(15) = niX1)14((16) = (15)/n(17) = nXni21 (18) =pH 7 (23) =(19) + (20) + (21)+ (22)

7 (NIEA NIEA NIEA NIEA NIEA [5]) ND(Non-detectable) (Diffusion denuder)[16] (Porous metal)[17] 95% hr 95% hr pH 7 90m2/m3 95% pH 7 a 180sec-m2/m3 21 pH pH 9 pH 7 10 pH 7 pH pH pH 7 pH

8 22 pH 5 pH pH pH pH pH pH +3 pH=7 4 23 4 pH 24 1. ( ) ~126 86 (1997) D. Cooper & F. C. Alley , Air Pollution Control A Design Approach , Waveland Press Inc., 2nded., pp. 411~442, 89 (2000) H. Perry and Don W. Green Perry s Chemical Engineers Handbook ,McGraw-Hill, 7thed.

9 , EPA, Chapter , Determination of Reactive Acidic and BasicGases and Strong Acidity of Atmospheric Fine Particles in Ambient AirUsing the Annular Denuder Technology, , C. J., Huang, C. H., Wang, S. H., and Shin, T. S. Design and Testing ofa Personal Porous-metal Denuder , Aerosol Sci. 35, pp 1-6, 262728293031 32 A006 92 08 pH 45 (14)pH 92/08 92/08 HCl, HF, HNO392/08 Tellerette92/08 1975ppm92/08 180ppm92/08 92/08 (1) m292/08 (2) m92/08 (3) 95 m2/m392/08 (4) pH (5) 15000 m3/ hr92/08 (6) 30 m3/ hr(7) m2/hr (8) sec (9) in-H2O(10) s/cm(15) (11) / 92/08/12(16) (12)pH / 92/08/12(17) (13) 92/08/12(18) (19) / (20) / (21) / (22) 10 / (23) 45 / =(23) =(18) =(17)(7) (> )=(6)/ (1) (3) (8) (> )=3600 (1) (2)/(5)(15) = niX1)14((16) = (15)/n(17) = nXni21 (18) =pH 7 (23) =(19) + (20) + (21)+ (22)