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BRACKISH WATER
RO PRE-FILTRATION

REFERENCE FACT SHEET

PROJECT DESCRIPTION

  • Filtered water capacity up to 14,400 m³/d
  • Brownfield BOT
  • Modification of pre-treatment process steps, replacement of existing lamella settler 
  • Location: Caspian Sea
  • In operation since 11/2017

PROCESS CHAIN

  • Aeration tank for removal of H2S
  • Rapid mixer for injection of chlorine and FeCl3
  • Retention tank with baffle wall design for TOC coagulation
  • Dead-end submerged ceramic flat sheet membrane filtration
  • CapClean for integrated chemical cleaning process
  • Reverse osmosis

PROCESS FLOW DIAGRAM

PERFORMANCE DATA

PARAMETER
UNIT
FEED WATER
FILTERED WATER
Fe
ppm
0.11
< 0.02
Mn
ppm
0.05
< 0.02
COD
ppm
35
22 - 30
TSS
ppm
> 100
< 1 (nil)
TDS
ppm
1,945
1,945
Turbidity
NTU
> 35
< 0.2
SDI 15
%/min
> 5.0
< 0.5
PARAMETER
UNIT
VALUE
No. of trains
3+1
Max. flow per train
m³/hr
189.8
Max. flux rate
LMH
452
Filtration time
hrs
4 x 5.8
Backwash time
sec
4 x 65
Recovery rate
%
96.8
Power consumption
kWhr/m³
0.04

PLANT PICTURES & VIDEO

Site
construction

Site
construction

Tower
assembly

Customer
training

Train
installation

Train
installation

Train
installation

First plant
filling

Leackage
test

Process
start-up

Process check

Feed water
SDI > 5
NTU > 30

Filtered water
SDI = 0.20

Filtered water
NTU = 0.15

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