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

Ceramic flat sheet membrane - CERAFILTEC - PFD 1

RAPID MIXER

BLOWER FOR AERATION

BLOWER FOR AIR-SCOURING

AERATION TANK FOR H2S STRIPPING

RAW WATER FROM WELLS

INJECTION POINT OF CHLORINE AND FECl3

RETENTION TANK FOR ORGANIC COAGULATION

CERAFILTEC WITH 4 TRAINS AND 2×5 TOWERS PER TRAIN

FILTRATION PUMP

SPRINKLER PUMP

BACKWASH PUMP

CAPCLEAN SPRINKLER PUMP

CHEMICAL PREPARATION TANK

FILTERED WATER TANK

FILTERED WATER TO RO

CONCENTRATED SLUDGE DISCHARGE

PERFORMANCE DATA

PARAMETERUNITFEED WATERFILTERED WATER
Feppm0.11< 0.02
Mnppm0.05< 0.02
CODppm3522 - 30
TSSppm> 100< 1 (nil)
TDSppm1,9451,945
TurbidityNTU> 35< 0.2
SDI 15%/min> 5.0< 0.5
PARAMETERUNITVALUE
No. of trains3+1
Max. flow per trainm³/hr189.8
Max. flux rateLMH452
Filtration timehrs4 x 5.8
Backwash timesec4 x 65
Recovery rate%96.8
Power consumptionkWhr/m³0.04
FeFeed water 0.11 ppm
Filtered water < 0.02 ppm
MnFeed water 0.05 ppm
Filtered water < 0.02 ppm
CODFeed water 35 ppm
Filtered water 22-30 ppm
TSSFeed water > 100 ppm
Filtered water < 1 (nil) ppm
TDSFeed water 1,945 ppm
Filtered water 1,945 ppm
TurbidityFeed water > 35 NTU
Filtered water < 0.2 NTU
SDI 15Feed water > 5.0 %/min
Filtered water < 0.5 %/min
No. of trains3+1
Max. flow per train189.8 m³/hr
Max. flux rate452 LMH
Filtration time4 x 5.8 hrs
Backwash time4 x 65 sec
Recovery rate96.8 %
Power consumption0.04 kWhr/m³

PLANT PICTURES & VIDEO

Ceramic flat sheet membrane - CERAFILTEC - piping 3
Site construction
Ceramic flat sheet membrane - CERAFILTEC - piping 2
Site construction
Ceramic flat sheet membrane - CERAFILTEC - Reference 2
Tower assembly
Ceramic flat sheet membrane - CERAFILTEC - train installation 5
Customer training
Ceramic flat sheet membrane - CERAFILTEC - train installation 1
Train installation
Ceramic flat sheet membrane - CERAFILTEC - train installation 10
Train installation
Ceramic flat sheet membrane - CERAFILTEC - train installation 9
Train installation
Ceramic flat sheet membrane - CERAFILTEC - plant inlet flow
First plant filling
Ceramic flat sheet membrane - CERAFILTEC - inlet flow in train
Leackage test
Ceramic flat sheet membrane - CERAFILTEC - start-up
Process
start-up
Ceramic flat sheet membrane - CERAFILTEC - train installation 2
Process check
Ceramic flat sheet membrane - CERAFILTEC - SDI inlet
Feed water
SDI > 5
NTU > 30
Ceramic flat sheet membrane - CERAFILTEC - SDI filtered water
Filtered water
SDI = 0.20
Ceramic flat sheet membrane - CERAFILTEC - turbidity filtered water
Filtered water
NTU = 0.15
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