Non- -electrical Application electrical Application Non of nuclear Power of nuclear Power “Desalination and Water Reuse Desalination and Water Reuse- - “ A technology for the future ” ” A technology for the future Ghassan Ejjeh- -Director Director IDA and Six Construct IDA and Six Construct Ghassan Ejjeh Leon Awerbuch- -President LET, Director IDA President LET, Director IDA Leon Awerbuch 17 April 2007, Oarai 17 April 2007, Oarai BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
World Water World Water World Water Salt Water Salt Water 97.5% 97.5% Total Fresh Water 2.5% Total Fresh Water 2.5% 68.9% Glaciers and permanent snow cover 68.9% Glaciers and permanent snow cover 0.3% renewable 0.3% renewable 0.9% Other 0.9% Other 29.9% Fresh Groundwater 29.9% Fresh Groundwater Freshwater Freshwater (swamps, moisture, etc.) (swamps, moisture, etc.) BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
I ncreased Water Demands: I ncreased Water Demands: Greater extraction of groundwater Greater extraction of groundwater resulting in depletion of the aquifers, resulting in depletion of the aquifers, The only available choice, to meet the The only available choice, to meet the demand demand is is SEA WATER DESALI NATI ON SEA WATER DESALI NATI ON
Desalination will create sustainable sustainable Desalination will create development of extra water resources development of extra water resources Help minimize regional and international Help minimize regional and international conflicts, over sharing of water. conflicts, over sharing of water. Will offer commercial opportunity of 80 80 Will offer commercial opportunity of billion dollars plus, in the next 10- -20 years. 20 years. billion dollars plus, in the next 10
The Challenge The Challenge The need for ever increasing quantities of low cost • desalinated water To ensure environmentally sustainable expansion • in supply To create a product which is reliable and can • attract finance BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
MARKET DRIVERS for MARKET DRIVERS for DESALINATION and POWER DESALINATION and POWER •Increasing water demand •Decreasing unit cost of desalination through technology improvement •Lack of alternatives to desalination •Environmental constraints increasing the cost of traditional water resources •Imbalance between rapid growth of water demand and slower growth of peak power •Water can be stored, whereas electricity cannot BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
TRENDS IN DESALINATION AND TRENDS IN DESALINATION AND POWER MARKETS POWER MARKETS •Movement towards market pricing of water •Privatisation of water supply •Introduction of Build Own and Operated (BOO) concept to power and desalination projects •Profitability moving from manufacturing to ownership and O&M •Hybrid and Nanofiltration (NF) as a solution to the power surplus and need for cost reduction. BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Desalting Inventory Desalting Inventory Worldwide there are 15,233 desalting units with total capacity of 32,400,000 m3 /d or 5,706 MIGPD • Over the last two years the increase averaged 10.5% / year • The Middle East is still the dominant market � Saudi Arabia 22.4% � UAE 20.4% � USA 12.0% � Kuwait 8.4% BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Total desalination capacity worldwide By Region Caribbean Australia South America 3.5% 0.8% 0.8% North America 16.2% Africa Middle East 5.1% 49.1% Asia 11.2% Europe 13.3% BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Total desalination capacity Total desalination capacity worldwide by the source water. worldwide by the source water. By Capacity Waste- Pure water River water Brine water Brackish water Seawater BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Desalting Inventory Technology Desalting Inventory Technology For all plants installed and contracted • MSF represents 43.5% • RO represents 43.5% For seawater as a feed • MSF represents 66.3% • RO represents 22.4% • MED and HYBRIDS coming strong BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
The significant increase in fuel-energy and material cost has a dramatic impact on capital and operational cost of Desalination and Power plants. Impact of US$ 60-75 per barrel oil, natural gas exceeding 11 $/MMBTU and high demand for raw materials, steel, copper, nickel and concrete has dramatically increased pressure to develop novel solutions. Can we minimize energy consumption and reduce volume and weight of desalination plants? BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Desalination is an energy and capital Desalination is an energy and capital intensive process. intensive process. All major desalination technologies Multistage All major desalination technologies Multistage Flash (MSF), Multi- -effect Distillation (MED and effect Distillation (MED and Flash (MSF), Multi MED TVC), and Mechanical Vapor Compression MED TVC), and Mechanical Vapor Compression (MVC) as well as Reverse Osmosis (RO) and (MVC) as well as Reverse Osmosis (RO) and Hybrids will be significantly affected by Hybrids will be significantly affected by energy costs energy costs
Energy Requirements Energy Requirements (Steam/Electricity) (Steam/Electricity) Process Live Steam Electricity Process Live Steam Electricity (ton product/ ton steam) kwh/ ton (ton product/ ton steam) kwh/ ton product product Multi Stage Flash 8 4 Multi Stage Flash 8 4 Vapour Compression n/a 8 Vapour Compression n/a 8 Multi Effect Distillation Multi Effect Distillation 12 12 2 2 Reverse Osmosis: Reverse Osmosis: with energy recovery n/a 3.5- -5.5 5.5 with energy recovery n/a 3.5 without energy recovery n/a 8.5 without energy recovery n/a 8.5 BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Desalination Technologies Desalination Technologies Multi- -Stage Stage- -Flash Flash Multi • • Distillation (MSF) Distillation (MSF) Multi- -Effect Effect- - Multi • • Distillation (MED) Distillation (MED) Reverse Osmosis Reverse Osmosis • • (RO) (RO) Vapour Compression Vapour Compression • • Distillation (VCD) Distillation (VCD) BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Thermally driven Desalination Thermally driven Desalination Technologies Technologies • Multi Multi- -stage Flash (MSF) stage Flash (MSF) • • Multi Multi- -effect Distillation (MED) effect Distillation (MED) • • Multi Multi- -effect Distillation with effect Distillation with • Thermocompression (MED - - TC) TC) Thermocompression (MED BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
Multi Stage Flash (MSF) Multi Stage Flash (MSF) Raw seawater total dissolved solids (TDS): Raw seawater total dissolved solids (TDS): • • 35- -47,000 mg/L 47,000 mg/L 35 o C Maximum brine temperature: 112 o C Maximum brine temperature: 112 • • Performance ratio: 8 Performance ratio: 8 • • 3 4 kWh/m 3 Electrical power: 3- -4 kWh/m Electrical power: 3 • • Scale inhibitors used for scale control Scale inhibitors used for scale control • • Recycle type plant Recycle type plant • • Dual purpose plant Dual purpose plant • • BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
MSF well established reliable technology with the limits MSF well established reliable technology with the limits • • for Performance Ratio (PR) of PR= 10 typical PR= 8, for Performance Ratio (PR) of PR= 10 typical PR= 8, internal power consumption of 4kWhr/ton of water, internal power consumption of 4kWhr/ton of water, with turndown ratio from 110- -70% of nominal 70% of nominal with turndown ratio from 110 capacity capital cost $4.00- -$8.00 per gallon per day $8.00 per gallon per day capacity capital cost $4.00 installed (GPD). installed (GPD). BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
MSF KEY PARAMETERS MSF KEY PARAMETERS Capital Cost MSF 5.5 US$ MM per MIGD Capital Cost –Intake 0.1 US$ MM per MIGD /Outfall of cooling MSF GOR 8 Tons of product/ton of steam LP Steam Supply 2.5-3 Bar. A Lost Power Potential 1.225 MW/MIGD Power Consumption 4 kW.hr/m³ of distillate Steam Consumption 23.7 Tons/MIGD Chemical Costs 40,000 US$/yr per MIGD MSF R&R 1% TIC/yr Labor 40,000 US$/yr per MIGD BESIX LEADING EDGE WATER TECHNOLOGIES BESIX LEADING EDGE WATER TECHNOLOGIES
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