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potable water company

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 %. Ex ternal Water board - Evides - Dow connection. 0 %.

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potable water company

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  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 0 % Dow cooling towers another water source New definition of zero discharge

  2. 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 < 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

  3. 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

  4. Science& technology regarding water & energy chain • Referencepotable 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-1for 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 * 25°C * 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. • Compressed air below 1 mWk = 2,000 kJ per kgoxygen .

  5. 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

  6. WUR Capita Selecta ETE-50403 May 6th – June 24th 2008(Waste) Water Treatment & ReusePublic – 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

  7. History Salty environment Terneuzen

  8. History 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

  9. 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

  10. 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

  11. 3 * 3 = 6 “Dow” mathematics of sustainability PPP scarce water source potable water company households public water treatment 0 % No direct “Dow connection” 0 % Dow production units Dow water treatment Industrial water company altern. water source vulnerable surface water Internal Evides Dow connection Dow cooling towers another water source

  12. 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 0 % powerplant cooling towers another water source New definition of zero discharge

  13. 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

  14. Global Reporting Initiative (GRI) report & Corporate Report. 2007

  15. 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

  16. Dow in Terneuzen Terneuzen Water Quality Management • Quantity • Site specific • ………...Quality • Sweet • Waste components Zn & P become raw material • 35 % savings Zn2+ PO43- Zn2+ PO43-

  17. 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

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