NALCO1

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Innovative Offerings for Membrane and Thermal

Desalination Plants

Asif Sheikh

Industry Development Manager

Innovations Marketing – Desalination

Nalco Gulf Ltd, Dubai, UAE

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www.nalco.com

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Our Global Business Model

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Nalco a Strategic Resource - Creating and Maintaining Value

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Existing Offerings from Chemical Suppliers

Services

Chemicals

Programs

• Antiscalants approved for potable? • Antiscalant selection and dose ? • Global references ?

• Tried & Tested ? • Tailored ? • Case Studies ? • Value Adding / Differentiating ?

• Plant Survey / Audit conducted ? • Performance Reporting in place ? • Membrane Autopsy Services ? • Local on-site Service capabilities / support ? • Troubleshooting and Consultative Expertise ?

Are suppliers Adding Value ? - Asset protection - Maintaining production

and quality - Reducing O&M costs

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Innovative Offerings from Nalco

Antiscalant Chemistries

Equipment

Communication

Platform

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Innovative ANTISCALANT CHEMISTRIES

RO Membrane Desalination ANTISCALANTS

• Phosphorus-Free Scale Inhibitor (PC-1611T)

- Replacement for typical Phosphonate antiscalants

• Calcium Phosphate specific Scale Inhibitor (PC-1521T)

- Reduced need for depressing pH in water reuse applications

MSF and MED Thermal Desalination ANTISCALANT

• High Top-Brine-Temp & High Concentration Ratio Scale Inhibitor (PC-2040T)

T is the TRACER Fluoresence in all Nalco Desalination Antiscalants

that allows for the concentration to be measured instantaneously

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Innovative EQUIPMENT

Thermal (3DTfTD) Membrane (3DTfM)

Nalco Global Gateway

Fluorometer

3DT Controller

3DT Technology: Detect - Determine - Deliver

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Innovative COMMUNICATION PLATFORM

enVision: The Power of Information on Demand

Our new web-based data management platform and

system management dashboard to help optimize and

continuously improve your systems’ performance.

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3DTfM

3DT for Membranes

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Traced RO Antiscalant Dosage Control with 3DTfM

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Normalized Data Trends with Nalco 360

Permeate

Feed Water

Data Download

Trending & Analysis

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Enhanced Normalization Reports

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3DTfTD

3DT for Thermal Desalination

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Nalco’s Innovation Antiscalant for Thermal Desalination Plants

• Most MSF plants operate between a TBT of 95 to 115 degC

• Industry standard antiscalant dosing on MSF plants is 1.5 - 2.5 ppm

• 3-phase pilot MSF trial with Nalco’s Innovation Antiscalant conducted at SWDRI in Saudi Arabia

• Successfully tested at various operating conditions - SWDRI Certificates

• Most aggressive condition was successfully tested at a TBT of 119 degC, CR of 1.9 and down to a dosage of 0.8 ppm

• Significant opportunities for the industry;

- Reduce TCO using Nalco’s 3DTfTD unit to safely optimise PC-2040T antiscalant dose by UP TO 50%

- Increase production at higher TBT operation

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3DT for Thermal (3DTfTD) applicable for both MSF & MED Plants

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Sampling BEFORE

PC-2040T dosing

Sampling AFTER

PC-2040T dosing

Sampling in Distillate

(OPTIONAL)

OR

Make-up Line

(IMPORTANT)

Sampling in

Brine Blowdown

line (IMPORTANT)

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EXAMPLE SCHEMATIC for a MSF plant showing PC-2040T Dosing and Fluorometer sampling points

Distillate

Antiscalant Dosing Provision B

based on SW Make-Up Flow

SW Make-UP

Blowdown Fluorometer

Untreated Brine Recycle Fluorometer

Brine Recycle

Treated Brine Recycle Fluorometer

Blowdown

SW Make-Up Fluorometer

Heat Recovery section Heat Rejection section

Stage19

Stage16

Stage1

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On-line MONITORING of PC-2040T on MSF plant#1 - REAL CASE

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On-line CONTROL of PC-2040T on MSF plant#2 - REAL CASE

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On-line CONTROL of PC-2040T on an MED plant - REAL CASE

BEFORE AFTER

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• On-line monitoring of temperatures and turbidity using fluorometer sample points

• On-line monitoring of Brine Blowdown residual concentration of PC-2040T allows for continual verification of Concentration Ratio

• On-line changes in Seawater Turbidity monitoring enables 3DTfTD unit to adjust PC-2040T dose rate

• Connecting the Ball Cleaning system status (ON/OFF) to the 3DTfTD unit enables adjustment of PC-2040T dose rate

• Automatically web-generated reports on a daily basis consisting of various performance and parameter trends

Additional Features of the 3DTfTD unit

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Performance Management with Chemistry + Automation

Nalco has built this innovation on the

3D TRASAR technology platform

This combines novel sensor technology,

advanced treatment programs, modern

communication and expert consultancy

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enVision: The Power of Information on Demand