3. joint venture (50/50)
of
• Drinking Water
Company Drenthe
• Velt and Vecht Water
Board.
MAIN GOAL:
- Activities in Water cycle
- Sustainable watersystems
4. STROOMDAL
•
•
•
•
First project 1998
200 households
Treatment of 80 m3/h waste water
Producing 40 m3/h water for re-use
• Study different treatment processes:
– NF, UF, Wetlands, Living Machine, MBR…
PROJECT STOPPED: TOO EARLY, NO SUPPORT
5. STROOMDAL
•
•
•
•
First project 1998
200 households
Treatment of 80 m3/h waste water
Producing 40 m3/h water for re-use
• Study different treatment processes:
– NF, UF, Wetlands, Living Machine, MBR…
PROJECT STOPPED: TOO EARLY, NO SUPPORT
10. REDEVELOPING THE OIL FIELD SCHOONEBEEK
• Discovered:
1943
• Oil production:
1945
• Peak production (24.000 bblpd): 1957
• Stop production:
1996
Thick viscous oil
11. Redevelopment using steam injection
Essential: High quality water
Capacity: 3 Mm³/y = 350 m3/h (2.2 Mgpd)
CONDUCTIVITY << 0,2 µS/cm
Si, Ca, Mg,…. Etc: Not detectable
12. SOURCE?
• Surface water: High TOC (Peat area) in winter,
chloride in summer (Water from Lake IJssel)
• Groundwater: Scarce, not to be used by industry
in this area
• Both not sustainable
13. SOURCE
• Treated waste water from WWTP Emmen
+ Re-use of waste water
+ Quality
+ Sustainable
14.
15. UNIQUE DESIGN OF UPW-PLANT
• Very low use of chemicals
• Low waste
• Better surface water quality
• Sustainable materials
Investment $ 50,000,000,-
16. UPW plant NieuWater
11200 m3/d
Effluent
WWTP
UF
RO1
RO2 + EDI
BACF
flush
Surface water
Back
flush
Concentrate
3000 m3/d
UP water
8200 m3/d
25. The UPW project
• Intense cooperation between oil company NAM and
water supply company NieuWater
• Re-use of waste water in area with water scarcity
• Better surface water quality (less nutrients and sludge)
• Sustainable design, low chemical use
• Reliability high (sources, design, redundancy)
• More investments than standard design; total costs only
slightly more
• New technology, experience, export thanks to knowledge
of partners
26. 2011: Wetlands for a Resort (research)
• Pond
• 2 sub-surface constructed wetlands:
• Pebble-sand
• Lava
CAPACITY for
removal of Nutrients
too low
27. Our Conclusions
Urban water cycle often takes place at the interface
between technosphere and biosphere.
Sustainable water management implies both high- and
low-tech water technology:
• high tech when necessary, natural treatment
when possible
