Projection UF plant
AquaFlex 0.8mm V1.04
Customer: Hantech Engineering Revision: 04 Jun. 2008
Project: UTAC reclaim water 528 CMD Revision date:
Lead nr: P-0804 Designed by: Alice
Description: Checked by:
Comments: The water quality for cutting line: pH:5.9 ~ 6.5; TH:2.6 ~9.3 ppm as CaCO3; TDS: 19 ~35 ppm; SiO2: 0.77 ~ 1 ppm; Turbidity: 5
~ 15 NTU; S. S. : 10 ~ 65 ppm; Flow Rate: 12 M3/Hr
The water quality for grinding line: pH:6.5 ~ 6.9; TDS: 1 ~ 5 ppm; SiO2: 77 ~ 88.4 ppm; Turbidity: 211 ~ 300NTU; S. S. : 150 ~ 914 ppm; Particle: 0.1 ~ 0.8 um; Flow rate : 10.2 M3/hr
Currency: Euro
Watersource: WWTP effluent Acid CEB @ pH=2
AquaFlex 1.5 mm to be considered
Max Turbidity: 150 NTU
Average Temp: 20 °C
Coagulant usage: No
type PACl
costs [/l]
stock concentration 60 [g/l as metal]
Requested: Designed:
Feed 22.0 m3/h Feed 22.2 m3/h (Overdesign: 1.1 %)
22.0 m3/h 22.2 m3/h
Recovery 90.0 %
Permeate 20.0 m3/h
Nett flux 62.6 lmh (36.9 gfd)
Unit design constraints: Unit design: Suggested Actual
Max. nr. of modules per unit 40 units 1 1
Membrane area per module 20 m2 (215 ft2) modules per unit 16 16
Number of units per feed pump 1 Total number of modules 16 16
Maximum BW pump running time 80 % Total area (m2) 320 320
CEB wash-in to: Backwash waste
Process settings: Feed pump layout:
Suggested Actual 1 feed pump(s) feeding 1 unit(s) each
Coagulant concentration 5 5 [mg/l]
Gross flux 50 72 [lmh] (42.4 gfd) Backwash pump layout:
HC interval 15 25 [min] 1 backwash pump(s) backwashing/cleaning 1 unit(s) each
CEB1:
Interval 6 24 [h]
Cleaning agent 1 HCl HCl [-]
Working concentration 400 450 [mg/l]
Stock concentration 281 281 [g/l]
Costs [/l]
Cleaning agent 2 [-]
Working concentration [mg/l]
Stock concentration [g/l]
Costs [/l]
CEB2:
Interval 12 24 [h] Enter 0 for not executing CEB2
Cleaning agent 1 NaOCl NaOCl [-]
Working concentration 200 200 [mg/l]
Stock concentration 150 150 [g/l]
Costs [/l]
Cleaning agent 2 NaOH [-]
Working concentration 400 [mg/l]
Stock concentration 319 [g/l]
Costs [/l]
Extra dead time [sec/HC] [min/day]
Chemical usage based on feedwater pH = 7 and alkalinity = 100 mg/l as CaCO3 unless stated otherwise
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