TDS LPRO 92 AOC UF SDI 1 96 % 1
---------------------------------------------------------- 03 ------------------------------------------------------ 03 1. ----------------------------------------------------------- 03 2. ----------------------------------------------------------- 04 --------------------------------------------------- 04 1. ----------------------------------------------- 04 2. ------------------------------------------------- 05 3. ---------------------------------------------- 05 --------------------------------------------- 06 1. ------------------------------------------------ 06 2. --------------------------------------------- 08 3. ---------------------------------------- 08 3.1 ------------------------------------------ 08 3.2 -------------------------------------------- 08 3.3 ------------------------------------ 09 3.4 UF ----------------------------------------------- 10 3.5 LPRO -------------------------------------------------- 11 ------------------------------------------------ 12 --------------------------------------------------------------- 14 ------------------------------------------------------- 14 2
1994 1998 2 4 1. MIB Geosmin 3
2. 56 % 170 mg/l 250400 mg/l 300 mg/l 80 % 20 % 300 mg/l 74150 mg/l 1. 261,000 CMD 313,200 CMD 4
2. 1 2 Odor Taste 3 Disinfection Byproducts 4 3. LSI -1 < LSI < 1 p 6.5-8.0 3 PCU 1 TON 0.3 NTU 100 % of the time 150 mg/l TDS 250 mg/l NH + 4 -N 0.08 mg/l NO - 2 -N 0.08 mg/l NO - 3 -N 8 mg/l 0.25 mg/l 0.04 mg/l 0.01 mg/l 0.05 mg/l 0.005 mg/l 0.05 mg/l 0.002 mg/l 0.01 mg/l 0.008 mg/l (Chlorite) 1.0 mg/l 0.51.0 mg/l FPA Odor free FPA 1 TTHMs 30 µg/l HAA5 30 µg/l 1.0 CFU/mL MPN/100 ml0.0 CFU/100 ml (AOC) 50 µg/l FPA 5
1. ( ) (Ultra-filtration UF) (Low Pressure Reverse Osmosis LPRO) UF LPRO (HCl) ph 6.5 HCO3-CO2 CO2 ph 7.0 UF UF Dead-end LPRO (PLC) 5 ppm LPRO COD UF (100~500 ppm) LPRO Loose RO Low pressure RO 6
LPRO (4-10 bar) 6 40 2 bar 6 bar (Flux) 85 % Specific Flux UF LPRO LRPO UF Flux 96 % LPRO ph UF 230 % LSI 2 7
TDSAOCTH ph UF TDS < 250 ppmth < 150 ppmaoc < 50 µg/lph > 6.5 2. µ 3. 3.1 UF 3.2 8
PAC 3.3 3.3.1 1 µm 3 3.3.2 2 1 9
3.3.3 1 CO2 NH3 HCO3- H+ CO2 H2O NH4+ OH- NH3 H2O 80 2 SS 20 ppm SS 3 4COD COD 30 50 3.3.4 1 µm 1 8 min 28 348 kg / cm2 3.4 UF 3.4.1 UF Silt Density Index SDI 1LPRO LPRO UF 0.05 µm ( 100,000 MWCO) MF UF MF 0.1 µm 10
AOC UF AOC UF LPRO UF PVDF UF UF 3.4.2 UF 150 UF Stack (DS-160)48 Stack UF UF Stack ψ45 cm 100 cm (H) 300 cm (L) 100 cm (W) 595 cm (H) 3.4.3 Stack 2.95 CMH 2.95 48141.6 CMH UF 141.6 5708 CMH/ UF 20 2 UF 1 bar 3.5 LPRO 3.5.1 LPRO TDS TH Flux 96 LPRO Spiral WoundTFC-PA FRP 11
3.5.2 LPRO 162 6 2 3 4 700 cm (L) 300 cm (W) 485 cm (H) ψ9.6 258ψ24.4 cm 655.3 cm ψ7.88 40 ψ20.02 cm 101.6 cm 3.5.3 1.11.2 CMH/ LPRO 437 CMH LPRO 15.4 CMH LPRO 19 12 48 76 LPRO 5.2 bar 9 bar 3,311,767,002 15 15 12
NT$ 969,570,000 1 6 2003 10 UFLPRO 15 NT$ 2,324,056,360 CMD 2.1 /CMD 15 NT$ 18,140,642 1 1 µm 3 2 1 CO 2 NH 3 ph 2 SS 3 COD 4 FeMn UF 1 PVDF 2 0.05 µm SDI<1 LPRO LPRO LPRO 1 96 % Flux 2 TDS TH 13
TDS LPRO UF 96 % CMD 2.1 1. 2. 3. AWWA RESEARCH FOUNDATION (1994), Evaluation of Ultra-filtration Membrane Pretreatment and Nano- filtration of Surface Waters. 4. US EPA Municipal Environment Research Laboratory (1980), Effect of Pretreatment on the Filtration of Low Turbidity Secondary Effluent. 14