desalination

WELCOME

TO PRESENTATION ON

TA5

WATER TREATMENT PLANT

SEA WATER INTAKE 7800 CuM

TA4 CWPH

4500 CuM

TA5 WCTP SYSTEM - 3300 CuM

DM WATER FOR BOILER

UTILITY SERVICE WATER

POTABLE WATER FOR PLANT

SERVICE WATER FOR PLANT

POTABLE WATER FOR TOWNSHIP

WATER INTAKE FROM SEA

PRE TREATMENT

PLANT

FILTERED WATER TANK

UF SKID FIRST PASS RO

SECOND PASS RO

UF PERMEATE CUM BACK

WASH TANK

FIRST PASS RO PERMEATE

WATER STORAGE TANK

SECOND PASS RO PERMEATE

WATER STORAGE TANK

MIXED BED RO

DM TANKS


POTABLE WATER TANK




LIME STONE FILTER

TA5 PROCESS FLOW DIAGRAM

WATER INTAKE FROM SEA

PRE TREATMENT

PLANT

FILTERED WATER TANK

UF SKID FIRST PASS RO

SECOND PASS RO


WASH TANK


WATER STORAGE TANK


WATER STORAGE TANK

MIXED BED RO

DM TANKS


POTABLE WATER TANK




LIME STONE FILTER

TA5 PROCESS FLOW DIAGRAM

Flow 3300 Cum/HrTDS 35000 ppmTSS 200 ppmSp.Gr 1.03

Flow 3000 Cum/HrTSS 2 ppm

Flow 2300 Cum/Hr

SDI < 3

Flow 810 Cum/HrTDS 400 ppmTSS Nil

Flow 215 Cum/Hr

Flow 180 Cum/HrTDS 20 ppm

Flow 150 Cum/HrPH 6.8 – 7.2Silica < 0.01 ppmCond < 0.1 MicrosiemensNa & CO2 Nil

F 485

F 30 F 20 F 60

CO2 - Nil

LAMELLA CLARIFIER –

16 Cone Sectors

GRAVITY SAND FILTER

FROM SEA WATER

TURBIDITY 200 NTU AT INLET

TURBIDITY <2 NTU AT OUTLET OF PRE TREATMENT PLANT. NO

CHEMICAL CHANGE

SLUDGE SUMP 200 CUM

TO REJECT

3 Nos Vertical pumps to Feed UF feed

3 Nos Vertical pumps for GSF backwash & 3 Nos of Twin Lobe Blowers

FILTERED WATER TANK

STILLING CHAMBER

FLASH MIXER

FLOCULLATOR

Desalination Feed Pump

House – TA5

For TA4 - CWPH

NaoCl dosage

from ECP to remove

ALGAE

FeCl 3 Coagulant dosage to remove

TURBIDITY

Coagulant aid – Polyelectrolyte

- dosage to remove

COLLOIDAL SILICA

TA5 – PRE TREATMENT PLANT SCHEME

To TA4

Reject from Clarifier

B/W from GSF

TURBIDITY 50 NTU

PRE TREATMENT PROCESS• STILLING CHAMBER – NaOCl is added – To

remove ALGAE.• FLASH MIXER – FeCl3 Coagulant is added – To

remove TURBIDITY.• FLOCULLATOR – Coagulant aid

(Polyelectrolyte) is added – To remove COLLOIDAL SILICA.

• LAMELLA CLARIFIER – To filter TURBIDITY upto 50 NTU.

• GSF – To filter TURBIDITY TO < 2 NTU.

TA5 – UF & FIRST PASS RO

RO CARTRIDGE FILTER 3 Nos


WATER STORAGE TANK

Reverse Osmosis 1 Skid - 3 Nos

To RejectIst PASS RO ERU


WASH TANK

Basket Strainer8 Nos UF Skid

REJECT TANK

UF B/W

I Pass Cartridge Filter Feed Pump

Filtered Water

Storage Tank

3 Nos Vertical feed pumps from Under Ground RCC tank

To 2nd Pass RO

Service water & Lime stone feed

Antioxident SMBS to Remove Free Cl2

Antiscalant SHMP to Remove all Carbonates alkalinity

Acid/ Lye for PH correction (6 to 7)

FIRST PASS RO PERMEATE WATER STORAGE TANK

3 Nos. Mixed Bed 2 Nos. DM TANK

2nd Pass Cartridge Filter 3 Nos

2nd Pass RO HPP 3 Nos

2nd Pass DG Feed Pump

2nd Pss DG Air Blower 3 Nos

Reject to Permeate cum B/W Tank


WATER STORAGE TANK

Reverse Osmosis 2 Skid -3 Nos

DM WATER TO CST

2 Nos. DM TRANSFER PUMP

TA5 - II PASS RO – MIXED BED

II Pass Cartridge Filter Feed Pump

3 Nos. MB Feed Pump

*SMBS - Free Cl2. *SHMP - Carbonates alkalinity. *Acid/ Lye for PH correction.

MEMBERANES/CARTRIDGES

SYSTEM NUMBER OF MEMBERANES

UF MEMBERANES 896

FIRST PASS CARTRIDGE 920

FIRST PASS MEMBERANES 1281

SECOND PASS CARTRIDGE 72

SECOND PASS MEMBERANES 210

PROCESS PARAMETERSPROCESS QUANTITY in

CUM/HRTDS in ppm TSS in

NTUREMARKS

INTAKE WATER 3300 35000 200 Specific Gravity 1.03

After Lamella Clarifier

50

After GSF 3000 2

After UF Skid 2300

After I Pass RO 810 400 NIL

After II Pass RO 180 20

After Mixed Bed – DM water Qly

150 0.01 PH 6.8 to 7.2, Silica < 0.01ppmCond < 0.1 Microsiemens, Na & CO2 - NIL

Plant water 500 NIL As per IS 10500TDS 500 ppm, TSS NIL, Ca 75 ppm, Mg 50 ppm, Sulphite & Chlorides 200 ppm each, PH 7 to 8.5, CO2 NIL.

TA5 ELECTRO CHLORINATION PLANT

Electrolytic Cell Assembly -

To Generate NaOCl

High Current Low Voltage Cathode: Hastelloy Anode: Titanium

PROCESS: NaCl+H2O → NaOCl + H2

FRP Tankto Store NaOCl –

Sodium Hypo Chlorite solution

Shock Dosing to CWPH

Continuous Dosing to CWPH

To Stilling Chamber in

PT Plant

Sea Water from CWPH Tapping

TA5 EFFLUENT DISPOSAL SYSTEM

Neutralizing Pit

Plant Drain

Effluent Treatment Tank

GUARD POND

From Reject Tank

Back Wash Solutions

from Mixed Bed

Plant Strom water

Acid / Lye Dosing to adjust PH according to

TNPCB norms

TO OPEN DRAIN

TA5 POTABLE WATER SCHEME

Service Water to Plant

Potable Water to Plant

Potable Water to Township2 Nos. Bulk

Caustic Tank

To REJECT

Portable Water Tank

First pass RO Permeate

Water Storage Tank

3 Nos. Lime Stone Filters

CO2 Dosing Motive

Water Pump

2 Nos. CO2 Storage

TankEvaporator

Dosing System

THANK YOU

desalination

Documents