E4Water Niels Groot, Dow & Peter Cauwenberg, VITO

Transcription

1 E4Water Niels Groot, Dow & Peter Cauwenberg, VITO

2 Economically and Ecologically Efficient Water Management in the European Chemical Industry Vision: A new paradigm for water management in the European chemical industry 19 partners from European Chemical Industry, and affiliated partners Coordinator: DECHEMA Project costs: 19 million May April 2016 Six case studies led by chemical industry partners (

3 The E4Water Vision 3

4 Approach Six case studies at chemical sites across Europe Technology development at Research Institutes supporting pilots for demonstration Modeling and Life Cycle Assessment Policy compliance analysis Exploitability

5 Demosite 1 : Dow, Terneuzen Mild desalination of various brackish raw water streams Niels Groot, Dow Benelux BV

6 Dow 2025 Sustainability Goals By 2025, Dow will reduce its freshwater intake intensity at key water stressed sites and its waste intensity footprint by 20 % 6 Learn

7 Dow Terneuzen Quick Facts Second biggest Dow site globally 440 hectares 1,700 employees contractors 17 Plants incl. 3 Ethylene crackers 800+ different chemicals and plastics 85% of products exported Located in a Water Stressed Delta Fresh Water Annual Use is 22 Million M³ Zeeuws-Vlaanderen 1-2 Million M 3 water locally sourced Most water sourced remotely: pipeline ~120km Surface & Ground water mildly brackish

8 Dow strives to become independent of remote supply Annual fresh water demand of >20 million m³ Biesbosch Surface Water Dow wastewater Dow Terneuzen Fresh water supply 120 km Dow - Bioxplant Terneuzen - WWTP Replace source by: process water rainwater wastewater Biesbosch water Municipal wastewater Intern reuse (condensate) Self sufficing fresh water region Reduce water footprint

9 Water Balance Zeeuws-Vlaanderen Inventarized water demand and supply : Rainwater run-off (winter and summer mean) k Meetpunten Water in (10 6 m3 jaar) Water uit (10 6 m3 jaar) Hoofdwaterlopen Rain water run-off from Flanders 9

10 Regional Robust Water system Key attributes Surplus of 100 million m³ of brackish water is discharged annually Save scarce potable water sources by regional reuse Nature, landscape and recreation will benefit. (treated) waste water, diffuse discharges, rain water Water NEXUS Treatment wetlands E4Water Influent buffer Effluent buffer Agricultural usage Mild desalination Industrial reuse

11 E4Water Mild Desalination Demo at Dow/Evides premises Key characteristics: m³/day - Handle varying raw water streams - Produce water for reuse (< 1 ms/cm) - Identify robust technology - Max production costs 0.4 /m³ - Leverage to other users Treated waste water Collected rain water ELSTA Cooling tower BD

12 Demo Facility at Evides/Dow

13 Opening by MEP Lambert van Nistelrooij Flocculator & Lamella Separator Nanofiltration unit

14 Pilot RESULTS and CONCLUSIONS

15 Winning Concept and overall conclusions Most robust treatment train for mild desalination: mix of Spuikom/Biox/WRWL pretreatment EDR product Highlights and innovations Ultra Filtration: Very reliable application for new mix of raw water streams (TRL 8) Combination of suitable pretreatment and Electro Dialysis Reversal in Mild desalination on a mix of surface water and industrial streams to produce industrial quality water (TRL 7) Combination of coagulation and UF as pre-treatment for Nanofiltration on CTBD and industrial wastewater was not sufficient Membrane Distillation is a promising technology, not economically feasible yet (TRL 5)

16 Connecting Chemistry & Water with Passion Water Each drop counts!

17 Demosite 2 : INOVYN, Antwerpen Reducing drinking water dependancy by regional symbiose Peter Cauwenberg, VITO

18 Water Management&Technology team at VITO 44 specialists Sustainable water management We guide industry and communities to sustainable water use and to protect water supply and ecosystems Working for industry, agriculture, governments and cities e Setting up demonstrations & living labs, implementing sustainable solutions in a local and international context We support decision makers and entrepreneurs by holistic water management tools We innovate technology and create integrated water concepts for the future

19 Inovyn, Antwerpen 395 kt Cl 2 /y capacity 123 employees 79 contractors Production of: Chlorine: pipelines Caustic soda pipelines schips Hydrogen pipelines trailers State-of-the-art Membrane electrolysis

20 Ambition Objective1: Saving drinking water Objective 2 : resource recovery

21 Project team EU regulation LCA study Water- Technology Valorisation brines Watermangement Membrane technology Valorisation brines Symbiotic water reuse in the chemical industry Communication dissimination & exploitation

22 Starting point Tap water m³ m³ m³ m³ m³ m³ 4928 m³ Rainwater m³ Demineralized water m³ m³ m³ Rainwater : 3921 m m³ Discharge Industrial waste water m³ Chemicals Steam m³ Sources? Surface water m³ m³ m³ Tap water user Sand filter 2880 m³ - Waste water from external company - Cooling m³ tower blowdown Rainwater - Rain water - Phreatic water - Brackish surface water production 8325m³ Consumers? Solvic sanitary 6029m³ - Process water - Sanitary water m³ - Drinking water - Water for steam productie m³ - Make-up Cooling towers m³ m³ Discharge non - Industrial waste water m³ Rainwater m³

23 Definition of options

24 Pilot phase : pilot 1 Conductivity: 2000 µs/cm > 10 µs/cm ph NTU Nordic Disc filter QT QT Feed waste Water company x Drinkwater NTU Feed phreatic water QT PAC Effluent Disc filter Overflow Disc filter Filter bag UF P HCl AS EGV QT UF permeaat tank 18m3 Catridge filter F P RO EGV EGV QT QT PT Permeaat 22,5 m3/h max. 17,25 m3/h min. Overflow 40 m3/h CIP F ph 30 m3/h max. QT 23 m3/h min. F P Proceswater tank 20m3 Waste watertank 10m3 150 m3/h Bypass company X 90 m3/h 40 m3/h 22,5 m3/h N333 UF + Double pass RO

25 Pilot phase : pilot 2 Conductivity: µs/cm > 5 µs/cm

26 Pilot phase : pilot 3 NaCl conc: 8% ~ 14% Company X

27 Results Production of high quality demin water conform production specification ( < 5 µs/cm and 6,5 < ph < 8,5 ) Recycling salty water streams coming from an external company in the brine loop of INOVYN Manufacturing Belgium NV. Symbiotic working together with neighbouring companies. -60% -10% -30%