2024-09-24 14:48:37
v3.3.0.4
Project name: Water type: PMC Membrane age: 3 , 3
Customer: Flux loss per year: 7.00% , 5.00% Safety factor: 1 , 1
Username: Salt passage increase: 7.00% , 5.00%
Overall System
Total permeate flow: 15.79 m3/hr Water source: Well Water (SDI<3) Feed pressure: 9.28 bar (1P)
Raw water flow: 26.54 m3/hr Raw water TDS: 500.94 mg/L 9.27 bar (2P)
Total concentrate flow: 10.75 m3/hr Feed osmotic pressure: 0.22 bar
Overall recovery: 59.49 % Concentrate osmotic pressure: 0.08 bar
System - Pass1
Permeate flow: 18.58 m3/hr Average flux: 27.78 lmh Temperature: 19 °C
RO feed flow: 26.54 m3/hr Water source: Well Water (SDI<3) Average NDP: 5.95 bar
Concentrate flow: 7.96 m3/hr Feed TDS: 500.94 mg/L Specific energy: 0.46 kWh/m³
Recovery: 70 % Feed osmotic pressure: 0.22 bar Feed pressure: 9.28 bar
Number of elements: 18 Concentrate osmotic pressure: 0.71 bar Permeate TDS: 3.85 mg/L
ERD type: None Pump efficiency: 80 % Fouling factor: 0.8
Recirculation:
RO feed Permeate Conc. RO feed Conc. Vessel Boost Back Inter-stage Average
# of vessels # of elements pressure Perm. TDS
flow flow flow pressure pressure DP pressure pressure flux
loss
m3/hr m3/hr m3/hr bar bar bar bar bar bar lmh mg/L
Stage 1 2 6 26.54 13.55 12.99 9.28 7.57 1.71 0 0 0 30.39 2.93
Stage 2 1 6 12.99 5.01 7.98 7.57 5.7 1.87 0 0 0 22.48 6.34
Water Analysis - Pass1
Conc. Permeate
Species Raw water Adjusted feed
Stage1 Stage2 Composite Stage1 Stage2 Composite
Ammonium 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Sodium 53.04 53.04 107.85 174.92 174.92 0.49 1.06 0.64
Potassium 5.00 5.00 9.92 15.76 15.76 0.29 0.63 0.38
Magnesium 30.02 30.02 61.29 99.71 99.71 0.05 0.11 0.06
Calcium 50.04 50.04 102.15 166.20 166.20 0.08 0.16 0.10
Strontium 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Barium 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Fluoride 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Chloride 87.91 87.91 179.32 291.55 291.55 0.25 0.61 0.35
Sulfate 149.84 149.84 306.01 498.09 498.09 0.08 0.19 0.11
Nitrate 9.99 9.99 20.04 32.10 32.10 0.35 0.84 0.48
Carbonate 0.09 0.09 0.19 0.30 0.30 0.00 0.00 0.00
Bicarbonate 100.00 100.00 202.89 328.62 328.62 1.33 2.71 1.70
Boron 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Bromide 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Silica 15.00 15.00 30.62 49.84 49.84 0.02 0.03 0.02
CO2 10.30 10.30 10.30 10.30 10.30 10.30 10.30 10.30
TDS 500.94 500.94 1,020.28 1,657.09 1,657.09 2.93 6.34 3.85
pH 7.20 7.20 7.49 7.69 7.69 5.37 5.67 5.45
Within Vessels - Pass1
RO feed Permeate Element Element Net driving
Position Flux Polarization Feed TDS Perm. TDS
flow flow recovery DP pressure
m3/hr m3/hr lmh % bar bar mg/L mg/L
Stage 1
LG BW 400 ES 1 13.27 1.26 33.89 9.49 0.43 8.81 1.15 500.94 1.96
LG BW 400 ES 2 12.01 1.20 32.23 9.97 0.36 8.38 1.16 553.32 2.27
LG BW 400 ES 3 10.81 1.14 30.79 10.58 0.30 8.01 1.17 614.43 2.63
LG BW 400 ES 4 9.67 1.10 29.54 11.35 0.25 7.69 1.18 686.93 3.08
LG BW 400 ES 5 8.57 1.06 28.43 12.32 0.20 7.41 1.19 774.62 3.62
LG BW 400 ES 6 7.52 1.02 27.43 13.56 0.16 7.16 1.21 883.17 4.33
Stage 2
LG BW 400 ES 1 12.99 0.97 26.21 7.50 0.42 6.85 1.12 1,021.31 4.25
LG BW 400 ES 2 12.02 0.91 24.52 7.58 0.37 6.41 1.12 1,103.82 4.97
LG BW 400 ES 3 11.11 0.85 22.99 7.69 0.33 6.02 1.12 1,194.04 5.81
LG BW 400 ES 4 10.25 0.80 21.61 7.83 0.28 5.66 1.12 1,293.15 6.80
LG BW 400 ES 5 9.45 0.76 20.35 8.00 0.25 5.34 1.12 1,402.59 7.97
LG BW 400 ES 6 8.69 0.71 19.21 8.21 0.22 5.04 1.12 1,524.09 9.35
Solubility - Pass1
Solubility calculation
Feed Conc.
LSI -0.69 0.49
CaSO4 2.05 % 14.06 %
SrSO4 0% 0%
BaSO4 0% 0%
CaF2 0% 0%
SiO2 0% 44.1 %
Stiff Davis Index -1.08 0.03
Warnings - Pass1
System - Pass2
Permeate flow: 15.79 m3/hr Average flux: 35.41 lmh Temperature: 19 °C
RO feed flow: 18.58 m3/hr Water source: RO permeate Average NDP: 8.35 bar
Concentrate flow: 2.79 m3/hr Feed TDS: 3.85 mg/L Specific energy: 0.38 kWh/m³
Recovery: 84.98 % Feed osmotic pressure: 0.01 bar Feed pressure: 9.27 bar
Number of elements: 12 Concentrate osmotic pressure: 0.08 bar Permeate TDS: 2.63 mg/L
ERD type: None Pump efficiency: 80 % Fouling factor: 0.86
Recirculation:
RO feed Permeate Conc. RO feed Conc. Vessel Boost Back Inter-stage Average
# of vessels # of elements pressure Perm. TDS
flow flow flow pressure pressure DP pressure pressure flux
loss
m3/hr m3/hr m3/hr bar bar bar bar bar bar lmh mg/L
Stage 1 2 4 18.58 10.74 7.84 9.27 8.67 0.6 0 0 0 36.12 1.9
Stage 2 1 4 7.84 5.04 2.8 8.67 8.24 0.42 0 0 0 33.93 4.2
Water Analysis - Pass2
Conc. Permeate
Species Raw water Adjusted feed
Stage1 Stage2 Composite Stage1 Stage2 Composite
Ammonium 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Sodium 0.64 6.21 14.13 37.83 37.83 0.43 0.94 0.59
Potassium 0.38 0.38 0.73 1.48 1.48 0.13 0.30 0.19
Magnesium 0.06 0.06 0.14 0.40 0.40 0.00 0.00 0.00
Calcium 0.10 0.10 0.24 0.67 0.67 0.00 0.00 0.00
Strontium 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Barium 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Fluoride 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Chloride 0.35 0.35 0.83 2.37 2.37 0.00 0.01 0.00
Sulfate 0.11 0.11 0.26 0.75 0.75 0.00 0.00 0.00
Nitrate 0.48 0.48 1.05 2.74 2.74 0.06 0.16 0.09
Carbonate 0.00 0.06 0.15 0.42 0.42 0.00 0.00 0.00
Bicarbonate 1.70 16.29 36.84 98.19 98.19 1.28 2.79 1.76
Boron 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Bromide 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Silica 0.02 0.02 0.05 0.14 0.14 0.00 0.00 0.00
CO2 10.30 0.29 0.29 0.29 0.29 0.29 0.29 0.29
TDS 3.85 24.07 54.42 145.00 145.00 1.90 4.20 2.63
pH 5.45 8.00 8.35 8.77 8.77 6.90 7.24 7.01
Within Vessels - Pass2
RO feed Permeate Element Element Net driving
Position Flux Polarization Feed TDS Perm. TDS
flow flow recovery DP pressure
m3/hr m3/hr lmh % bar bar mg/L mg/L
Stage 1
LG BW 400 ES 1 9.29 1.38 37.15 14.86 0.23 9.14 1.24 18.45 1.29
LG BW 400 ES 2 7.91 1.35 36.33 17.07 0.17 8.94 1.28 21.61 1.59
LG BW 400 ES 3 6.56 1.33 35.71 20.23 0.12 8.79 1.33 25.98 2.03
LG BW 400 ES 4 5.23 1.31 35.27 25.05 0.08 8.68 1.43 32.45 2.73
Stage 2
LG BW 400 ES 1 7.84 1.29 34.74 16.46 0.17 8.55 1.27 43.09 2.84
LG BW 400 ES 2 6.55 1.27 34.11 19.35 0.12 8.39 1.32 51.43 3.50
LG BW 400 ES 3 5.28 1.25 33.63 23.65 0.08 8.28 1.40 63.54 4.48
LG BW 400 ES 4 4.03 1.24 33.25 30.62 0.05 8.18 1.54 82.86 6.06
Solubility - Pass2
Solubility calculation
Feed Conc.
LSI -3.18 -1.29
CaSO4 0% 0%
SrSO4 0% 0%
BaSO4 0% 0%
CaF2 0% 0%
SiO2 0% 0%
Stiff Davis Index -3.53 -1.64
Warnings - Pass2
Disclaimer: LG Chem Design is intended to be used by persons having the requisite technical skill, at their own discretion and risk.
When using LG Chem Design, it is the user's responsibility to make provisions against fouling, scaling and chemical attacks, to account for piping and valve pressure losses, feed pump suction pressure and permeate backpressure.
LG Chem shall not be liable for any error or miscalculation in results obtained by using LG Chem Design.
Because use conditions and applicable laws may differ from one location to another and may change with time,users are responsible for determining whether products are appropriate for their use.
Pressure
# Stream Flow (m3/hr) TDS (mg/L) pH
(bar)
1 Raw Feed 26.54 0.00 500.94 7.20
2 1P RO Feed 26.54 9.28 500.94 7.20
3 1P Brine 7.96 5.70 1,657.09 7.69
4 1P Product 18.58 0.00 3.85 5.45
5 2P RO Feed 18.58 9.27 24.07 8.00
6 2P Brine 2.79 8.24 145.00 8.77
7 2P Product 15.79 0.00 2.63 7.01
