water

1
Global Reporting Initiative (GRI) report
Corporate Report. 2007

• 3 3 3 Dow mathematics of sustainability
  PPP

scarce water source
0
potable water company
households
public water treatment
0
External Water board - Evides - Dow connection
0
Dow production units
Dow water treatment
RO Industrial water company (RO)
altern. water source
vulnerable surface water
Internal Evides Dow connection
Dow cooling towers
0
another water source
New definition of zero discharge
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Global Reporting Initiative (GRI) report
Corporate Report. 2007

• Mind setting
• Water business sustainability is unique
• Water COLD ? energy
• Water team play
• Water in the region current performance
• Water quality
• Conclusion
• COLD water independent of oil price other raw
  materials
• Water price lt 1 of total industrial production
  cost
• Regional water issue
• Scarce water sources first to households
  hygiene first
• Industry can perform with less quality
• Quality control ultra pure come first in
  industry
• Sustainable quantity improvements will then follow

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Solving global problems

• Most people will (soon) live in mega cities than
  instead of rural areas
• Most mega cities will be situated in a river
  delta or at the coast.
• Health and safety risks will increase
• Pressure on the water systems will grow
• PPP is a solution to these challenges
• Household wastewater recycling concept
• Urban regions with water problems
• Source for local industries
• Key elements
• Time Temperature Risk Mgt. .
  .Science Technology ( TUD)
• ? s ultra pure

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• Science technology regarding water energy
  chain
• Reference potable water heating 150
  Wth.household-1public oblivious
• Potable water hygiene 10 We.household-1
  50 kg CO2.a-1
• Municipal waste water ecology 20
  We.household-1 for O2 mainly
• Industrial water risk mgt 60 We.household-1
  for RO mainly
• 5 50 years time table to incorporate the water
  chain
• Industrial water integral part
• Complex chemical matrix ultra pure needs
• Natural follow-up for existing potable
  municipal waste water
• Science technology approach is unique
  consistent
• COLD water independent of oil price other raw
  materials
• gezondheidstechniek of Water mgt at Civil dep.
  Dia 62 oil- water- price since 1989 -
  2005
• Sanitation basics 1.000 m3.a-1.household-1
  including rain.
• Energy basics 6 kWth per person
• Transport 1 m3 1 bar 10 mWk.bar-1 9.8
  m.s-2 103 kg.m-3 100 kJ per m3 water
• Heating 1 m3 25C 4.18 kJ.kg-1
  103 kg.m-3 100 MJ per m3 water
• Compressing 1 Nm3 air 1 bar 104 kg.m2.bar-1
  9.8 m.s-2 100 kJ per m3 air.

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H2O (re-use as) cooling water customer
vulnerability

• Road to sustainable integral chain of events
  internal factors
• Back to Basics
• Focus on previous, current and next water user
• Trouble free exchanger life time for decades
  every pipe centuries
• 2 mm of carbon steel only
• Energy conservation clean heat exchangers
• Reliability clean heat
  exchangers
• Thermodynamics predict clean heat exchangers

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WUR Capita Selecta ETE-50403 May 6th
June 24th 2008 (Waste) Water Treatment
Reuse Public Private Partnership
Lambèr Paping, Leon van Miert, Cees van
Houwelingen, Niels Groot Albert Veraart,
Hans Huiting, Sjaak van Agtmaal, Marc
Slagt, Piet de Boks, A. Wrangel, R.Haug
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Salty environment Terneuzen
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Sweet surface water.or re-use

10 km
The Netherlands
Vlissingen
North Sea
Scheldt estuary
Dow
Antwerp Harbour Docks
Antwerp
Belgium
Braakman
6 million m3 storage
Scheldt
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• 3 3 9 the world even until the last
  century

(scarce) water source
potable water company
households
Industrial production units
( vulnerable ) surface water
Industrial cooling towers
12

• 3 3 9 The world changed 70-th in each
  region

(scarce) water source
potable water company
households
public water treatment
No direct industrial community connection
Industrial production units
Industrial water treatment
water plant
vulnerable surface water
Industrial cooling towers
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• 3 3 3 Dow mathematics of sustainability
  PPP

scarce water source
0
potable water company
households
public water treatment
0
External Water board - Evides - Dow connection
0
industrial production units
ind. water treatment
RO industrial water company (RO)
altern. water source
vulnerable surface water
Internal Evides Dow connection
powerplant cooling towers
0
another water source
New definition of zero discharge
15
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Global Reporting Initiative (GRI) report
Corporate Report. 2007
Effluent Recycle to Cooling tower ongoing
improvements
2008 YTD (26 Sep) 1,938,000 m³ 306 m3.hr-1
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Global Reporting Initiative (GRI) report
Corporate Report. 2007
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Water Reuse - Chain Complexity
In red introduced later
Surface Water reservoirs (Belgian polders)
Wastewater suppliers
Evaporation
Dow WWTP segregation
Discharge to river
Fresh / recycle ratio
salt
Dow Cooling Tower
Blow down to river
Evides DECO plant
sweet
Conductivity Phosphate Ammonium Suspended
solids Organics pH Temperature Oxygen
Conductivity Nutrients Oxygen
Basins
Conductivity, P, N
Water treatment (pH, P, Zn, free
oxidant) concentration factor, debris, dosage
control
Nutrient Addition Control
Process stability requires advanced chain control
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Terneuzen Water Quality Management

• Quantity
• Site specific
• ...Quality
• Sweet
• Waste components Zn P become raw material
• 35 savings

Zn2 PO43-
Zn2 PO43-
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H2O (re-use as) sustainability success factors

• Accept industry as part of the solution
• Public Private Partnership PPP regional
  integration
• Potable water first for the kids hygiene
• Municipal waste water to industry
• Delivery
• Multi raw water sources
• Reliability of delivery ultra pure
• Sustainable water source
• Dow Terneuzen
• 50 internal water recycle
• 80 sweet WWTP re-use
• Energy savings
• 55 kTon CO2 equivalent 90 of 240 kJ.kg-1
  demiwater MSFE
• 2 kTon CO2 equivalent 65 based on RO-salt
  to RO sweet