This document summarizes the work of Gerrit Veenendaal and the joint venture between Drinking Water Company Drenthe and Velt and Vecht Water Board. It describes several projects including treating wastewater from 200 households in 1998, a 2000 project at Emmen Zoo using both high-tech and natural water treatment, and a unique ultra-pure water plant built in collaboration with an oil company to treat wastewater for steam injection into an oil field. The document emphasizes sustainable design with low chemical use and the benefits of cooperation between partners with different expertise.

1. Gerrit Veenendaal Msc
Managing director

2. joint venture (50/50)
of
• Drinking Water
Company Drenthe
• Velt and Vecht Water
Board.

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

6. 2000: Emmen Zoo

7. WASTE WATER TREATMENT AND RE-USE
Hippo’s
Penguins
Turtles

8. 2000: Emmen Zoo Water Cycle
High tech: UF, UV, protein
removal
Natural: Living Machine

9. 50%
50%

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

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

18. UPW plant NieuWater

19. Ultra Filtration:
removal of particles

20. BACF: Preventing biofouling on RO

21. Effect of BACF
Without BACF
Using BACF

23. Electro De-Ionisation (EDI)
Removing salts
Without addition of chemicals

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

28. Information
info@nwtr.com
www.nwtr.com