An Inspiring and Innovative Approach to Sustainability through Water Treatment

Transcription

1 An Inspiring and Innovative Approach to Sustainability through Water Treatment Dr. Ilham Kadri General Manager, Dow Advanced Materials, ME&A Commercial Director, Dow Water & Process Solutions, EMEA The Dow Chemical Company

2 Agenda Commitment to Sustainability Some Facts Science 2 Case Studies Conclusion 2

3 BLUE REVOLUTION to avoid heading towards world Water Bankruptcy 1. Sustainability is our generation s responsibility and the cost of not addressing the water challenges is too high and Paying lip service to Sustainability is not enough 2. Sustainability and profitability are not mutually exclusive drivers- if the real cost of water is being understood 3. Public Private Partnerships (PPP) are effective models to replicate 4. Water Management needs a holistic approach, under the mantra: quality, efficiency, effectiveness and economy -life cycle Analysis, Operational efficiency, CAPEX/ OPEX, Infrastructure rehabilitation- 5. Desalination, water re-use, brackish or surface water treatments are all viable options alone or in combination- ONE SIZE DOES NOT FIT ALL 6. Water- Energy Nexus needs to be addressed Lack of technology, poor management or inefficiencies in one area can affect the sustainability of the other 7. Desalination and the Ocean Is Becoming One of the Key Sources of Reliable and Draught-Proof Coastal Water Supply 8. Re-use is THE OTHER priority- If we re-use a waste, it is not a waste anymore- but legislation is needed 9. Water Treatment Innovative Industrial Projects are aiming at Sustainability Green is In! 10.Pan-European harmonized approval schemes for water treatment technology and harmonized water quality standards across all Member States DOW RESTRICTED - For internal use only 3

4 The DOW CHEMICAL COMPANY OUR HISTORY Founded in 1897 by Herbert H. Dow in Michigan net sales $60B in ,000 employees worldwide OUR VISION To be the most profitable and respected sciencedriven chemical company in the world WHERE WE ARE ACTIVE Supplies a broad range of products and services to customers in approximately 160 countries SOLUTIONS More than 5,000 products manufactured at 197 sites in 36 countries OUR MISSION To passionately innovate what is essential to human progress by providing sustainable solutions to our customers DOW RESTRICTED - For internal use only 4

5 Commitment to Sustainability 5

6 The earth is not ours, it is a treasure we hold in trust for future generations Sustainable Development should meet the needs of the present without compromising the ability of future generations to meet own needs

7 The Human Footprint on Ecology- we are THIRSTY Earth s carrying capacity is ~ 1.8 global hectares/person Americans and UAE citizens use ~ 5 planets Europeans and Japanese use ~ 2.5 planets Chinese use ~ 1 planet Morocco 7

8 Some facts 8

9 The World Health Organization (WHO) states that 1/6 of the world s population does not have access to safe water for drinking Global population soaring Food, energy and freshwater becoming scarce Water for potable or industrial use is limited Some supplies not useable

10 Water Statistics are often not Accurate, but Water Withdrawal By Sector The Dynamics Of Water Use ( ) Source UNESCO

11 How Can Technology & Innovation Create Sustainability? Modern water treatment technology and distribution infrastructure allows us to conquer disease, to build advanced industrial economies and to increase standards of living. Improvement of irrigation techniques makes it possible to feed a rapidly growing population, turn deserts into inhabitable lands and quench the thirst of large metropolitan areas. The latest technologies allow us to minimize Water needed for energy production Energy needed for water production

12 Science 1

13 Enabling Components Primary Loop (Roughing Stage) RO Pre-treatment System 2B3T System (UPCORE* System) Optional Single Pass RO + Working Mixed Bed IX Raw Water Storage Tank Multi Media Filter or UF Storage Tank Double Pass RO Polishing Mixed Bed Storage Tank Secondary Loop (Polishing Stage) Optional Single Pass RO + CDI or EDI UV Final Polisher UF UF Reclaim (Recovery) System Storage Tank EDI Point of Use Discharge

14 Desalination is well established in coastal stressed regions This plant provides greater than 15% of the water needs of Israel from the Mediterranean Sea 330,000 m3 of drinking water is produced per day; 1-2MM people At a cost of US cts/m3 compared to desalination plants at cts/m3 The Ashkelon Seawater reverse osmosis plant is the one of the largest in the world and uses Dow filtration membranes.

15 DESALINATION Map of Desalination plants > m3/day Total Europe Capacity: 5 million m3/day (capacity > m3/day with RO (seawater, brackish water and reuse)) Spain represents 70% of that with 3.6 million m3/day (online capacity is 3.2 million m3/day) RO Thermal ED Other 4% 2% 23 Million m³/day Thermal Desalination 34% 40 Million m³/day RO Desalination 60% 1,4 1,2 1 0,8 0,6 0,4 0,2 0 Cost of Desalinated Water, US$/m 3 Plant SWRO System Energy Use (kwh/m³) 1,000 m³/day 50,000 m³/day ,000 m³/day

16 Specific Energy (kwhr/m3) Specific US GHG(kg CO2eq/m3) DOING MORE with LESS (plus anti-fouling, higher rejection, durability) 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0 6% 11% 15% 19% 25% 44% BW BW BW BW30-400/34 BW BW30HR-44 HRLE

17 Case Study 1 Terneuzen, Holland 17

18 Water Management at Dow Eliminate usage of scarce fresh water sources suitable for drinking water by 2020 Water withdrawal in 2010 is 6% less than in 2009 Water risk management plans, focusing on local water challenges for stressed regions Risk management plans are unique to local drivers Dow Location Aratu, Brazil Bahia Blanca, Argentina Terneuzen, The Netherlands Tarragona, Spain DCL, Germany Seadrift, Texas Freeport, Texas Water Source Freshwater Freshwater Rhine, Meuse Freshwater, Ebro River River Saale, River Weisse Elster, Lake Witznitz Guadalupe River Brazos River *as defined by the World Business Council s Global Water Tool 18

19 Benelux: A Large Chemical Hub Benelux 83 billion EUR in 2010 Direct employment brings 157,000 jobs* Major investor in R&D with a budget of 3.6 billion EUR Strong knowledge base Terneuzen Rotterdam Antwerpen Dow in the Benelux 7 locations: first office opened in 1955 in Rotterdam 23 plants with annual production of 6 million tons of plastics and chemicals 2,100 Dow employees and 700 contractors Home to three Dow global top 10 customers 19

20 Scarce Water Source Surface Water Dow in Terneuzen: Model Prior to 2000 Public Water Company Terneuzen Households Public Waste Water Treatment Water Production plant Dow Production Units Dow Waste Water Treatment Dow Cooling Towers 20

21 Surface Water PPP Model After 2007 Scarce Water Source 0% Public Water Company Terneuzen Households Public-private partnership Public Waste Water Treatment 0% 0% Multiple Water sources Private Water Company Production Units Cooling Towers Waste Water Treatment Evaporation 21

22 Polution EquivalentX 1000 Our Journey: The 3X Water Reuse Model 1965 Site began operations 1.Optimize water usage at the source (in process) 2.Reuse treated industrial wastewater 3.Regional integration through recycling of municipal waste water Selected partner 1995 Evides Waste Water Treatment plant in operation 2007 PPP Dow Evides (DBO) Waterschap Zeeuws-Vlaanderen 2009 Dutch Parliament WW taxation removal 2010 Integrated urban & industrial watercycle Exapnsion of municipal WWTP Pre-reatment to increase efficiency 2012 Second largest site in the world 60,000 m3 water per day 2300 people (22 million m3/yr) Awards Received Most Innovative CSR Project Zeeland Environmental Award National VNCI Responsible Care Awards Dow Responsible Care and WRAP Awards European Chemical Industry (CEFIC) Award ICIS (Publisher) CSR Award 22

23 Dow Water Reuse & Recycle Example Terneuzen Municipal and Industrial wastewater reuse Description Dow s second largest plant globally, reuses municipal household wastewater twice in its manufacturing process Sustainability Profile Dow accepts 10,000 m³ of water every 24 hours and purifies more than 70% of it to generate steam and feed manufacturing plants Reduced energy use equivalent to lowering CO2 emissions by 5,000 tons/a Process reduces the energy use for water purification by 65% Reduce chemical treatment by 500MT/a

24 Evides and Legislation Wins Water recovery of Reverse Osmosis unit at facility increased by 20% Operational expenses decreased by half City s waste water no longer discharged to sea, reused instead In 2009, the Dutch Parliament adopted legislation that exempts companies which reuse municipal water from paying levies on the remaining discharges 24

25 E4 Water Project Coordinated effort by European Chemical Industry and partners Submitted under EU FP7 program Eco-efficient management of industrial water with six demonstrations at different locations and a number of R&D work packages 19 partners P&G, Total, Solvay, Dow Benelux, Dechema Universities of Delft, Madrid, Copenhagen, Berlin, FHNW, Campden Research institutes TNO, VITO Water companies Evides, Ondeo Organizations Cefic, SusChem Demonstration pilot Mild Desalination to produce low-cost process from various sources of reclaimed surface water- May01st 2012

26 Case Study 2 Tarragona, Spain 26

27 Dow Chemical Ibérica Dow in Ibérica Established presence since 1960 Ribaforada Home to more than 1,500 Dow employees Produces more than 250 products Estarreja Madrid Tudela Tarragona Home to four manufacturing facilities and four R&D centers 27

28 Tarragona s Water Crisis Province of Tarragona struggled with water shortage for many years Urban, tourist and industrial activities concentrated in area < 200 km² Chronic water supply shortages were solved with water transfer from Ebro Delta irrigation district. Transfer now completely allocated in Summer. System unable to accept new water demands. Province decided to reuse reclaimed water from two urban wastewater treatment plants to supply Industrial Petrochemical Area. Supply replaces freshwater from Ebro River, releasing volume for drinking water supply to the population. 28

29 PPP Partners PPP partly financed by EU funds Partners: ACA (Catalan Water Agency), AEQT (private entity purchasing reclaimed water), Urbaser-Socamex and Ematsa (JV responsible for plant construction and first year operation), Veolia Water Solutions, The Dow Chemical Company Comprising 3 phases, the urban wastewater treatment plant will grow from 6.8 hm3/year to 10.5 hm3/year and to a final maximum flow of 20 hm3/year. 29

30 Project Overview Start up year: 2011 Production: 19,000 m3/day Raw water: Secondary effluents from WWTP Tarragona and WWTP Vila Seca-Salou To meet high reclaimed water quality criteria required by the end users, Dow supplied Reverse Osmosis system with double pass Reclaimed water application: Cooling towers supply to Tarragona Industrial Petrochemical Area Salou Tarragona Vilaseca Water Reclamation Plant Industrial Area 30

31 Water Reclamation Plant Design Vilaseca/Salou &/or Tarragona Secondary Effluents Actiflo Disc Filter MFF Sand Filter 1st Pass RO 2nd Pass RO UV Unit Design rec. (%) Staging (# vessels) Number of trains Product installed Total number of modules RO 1st Pass DOW FILMTEC BW30XFR-400/34i 1,440 RO 2nd Pass DOW FILMTEC LE- 440i

32 Water Exchange Approach 32

33 Results For Industrial Users New water, free of competition and conflict with urban users Very low salinity, at similar prices Environmentally and socially responsible action Better control over water supply costs For Municipalities Improve their water supply availability, especially those that did not have adequate water allocations in the 1980 s. Additional municipalities will be allowed to join the CAT system in the near future. 33

34 Conclusion

35 Remember- Water can have several lives Fresh water supply 1 st cycle Potable water for households Sewage Treatment Plant (municipality) water evaporates Desalination of effluent with membranes 3 rd cycle Water to supply cooling towers 2 nd cycle Fresh water used to produce steam at Dow site Ultra pure water Process cooling Discharge to river Waste water Biological wastewater treatment 35

36 BLUE REVOLUTION to avoid heading towards world Water Bankruptcy 1. Sustainability is our generation s responsibility and the cost of not addressing the water challenges is too high and Paying lip service to Sustainability is not enough 2. Sustainability and profitability are not mutually exclusive drivers- if the real cost of water is being understood 3. Public Private Partnerships (PPP) are effective models to replicate 4. Water Management needs a holistic approach, under the mantra: quality, efficiency, effectiveness and economy -life cycle Analysis, Operational efficiency, CAPEX/ OPEX, Infrastructure rehabilitation- 5. Desalination, water re-use, brackish or surface water treatments are all viable options alone or in combination- ONE SIZE DOES NOT FIT ALL 6. Water- Energy Nexus needs to be addressed Lack of technology, poor management or inefficiencies in one area can affect the sustainability of the other 7. Desalination and the Ocean Is Becoming One of the Key Sources of Reliable and Draught-Proof Coastal Water Supply 8. Re-use is THE OTHER priority- If we re-use a waste, it is not a waste anymore- but legislation is needed 9. Water Treatment Innovative Industrial Projects are aiming at Sustainability Green is In! 10.Pan-European harmonized approval schemes for water treatment technology and harmonized water quality standards across all Member States DOW RESTRICTED - For internal use only 36

37 Conclusion If you can t do it better, why do it at all? Sustainability begins at home, but its destiny is to engage the problems of the world 37

38 Thank You Dow Water & Process Solutions. World-class solutions, worldwide impact. The global leader in sustainable separation and purification technology, Dow Water & Process Solutions is making a clear impact in the world. Learn more at

39 Discharge to the sea is the disposal method used almost exclusively for desalination plants at or near the coast MIXING: brine outfall should end within a strong sea current to aid mixing the brine with seawater DIFFUSION: perforate the outfall pipe running on the seafloor and to add nozzle diffusers consisting of rubber check valves DILUTION: When maximal brine discharge limit is applied (e.g. France: 10% above seawater salinity), a solution is to dilute the brine with another water source upfront such as : Natural fresh water stream (river) if the plant is located close to a delta Waste water effluent stream discharged to the sea Seawater itself coming from the intake pump, which requires a larger intake capacity 39

40 Brine Disposal Overview The industry has adopted numerous disposal options depending on location and type of process used Options include: discharge to surface water or wastewater treatment plants; deep well injection; land disposal; evaporation ponds; and mechanical/thermal evaporation. Cost plays an important role in the selection of a brine disposal method and it is believed to range from 5% to 33% of the total cost of desalination The most important environmental issues for desalination are the location of the plant, brine disposal and energy considerations

41 DISPOSAL IN INLAND LOCATIONS The most suitable disposal methods from environmental and economical perspective have to be evaluated site-specifically Deep aquifer injection Aquifer reinjection Discharge to wastewater treatment plants Discharge to sewage system Discharge to open land Reuse for agriculture or landscaping Discharge to inland surface water (not environmental friendly) Evaporation ponds Zero Liquid Discharge (ZLD)

42 DISPOSAL IN COASTAL LOCATIONS Ocean disposal alternatives Discharge by pipe far into the sea Direct discharge at the coastline Discharge at a power stations outlet Discharge to a plant for salt production

43 Environmental Issues Marine disturbances in the vicinity of the outlet Creation of a salty desert in the area near the outlet Chemicals used are also a concern regarding the marine organisms and plants Site selection is extremely important. The most basic environmental consideration in deciding location of a plant is avoiding sensitive ecosystems Most important mitigation measure is to enhance the mixing of the two fluids with different densities, i.e. dilution