nzc - veenendaal
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TRANSCRIPT
high tech and/or natural?!
Gerrit Veenendaal MscManaging director
joint venture (50/50)
of
• Drinking Water Company Drenthe
• Velt and Vecht Water Board.
joint venture (50/50)
of
• Drinking Water Company Drenthe
• Velt and Vecht Water Board.
MAIN GOAL:
- Activities in Water cycle- Sustainable watersystems
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
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
2000: Emmen Zoo
Hippo’s Penguins Turtles
WASTE WATER TREATMENT AND RE-USE
2000: Emmen Zoo Water Cycle
High tech: UF, UV, protein removal
Natural: Living Machine
2010: ULTRA PURE WATER
FOR
DUTCH OIL COMPANY50% 50%
REDEVELOPING THE OIL FIELD SCHOONEBEEK
Thick viscous oil
• Discovered: 1943• Oil production: 1945• Peak production (24.000
bblpd): 1957• Stop production: 1996
Redevelopment using steam injection
Capacity: 3 Mm³/y = 350 m3/h (2.2 Mgpd)
CONDUCTIVITY << 0,2 µS/cmSi, Ca, Mg,…. Etc: Not detectable
Essential: High quality water
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
SOURCE• Treated waste water from WWTP Emmen
+ Re-use of waste water + Quality+ Sustainable
ULTRA PURE WATER PLANT (UPW)
UNIQUE DESIGN OF UPW-PLANT
• Very low use of chemicals
• Low waste
• Better surface water quality
• Sustainable materials
Investment $ 50,000,000,-
X
UPW plant NieuWater
UF
BACF
RO1 RO2 + EDI
Effluent
WWTP
UP water
8200 m3/d
11200 m3/d
flushConcentrate 3000 m3/dBack
flush
Surface water
UPW plant NieuWater
Ultra Filtration: removal of particles
BACF: Preventing biofouling on RO
Effect of BACF
Without BACF
Using BACF
RO2 stages
Electro De-Ionisation (EDI) Removing salts Without addition of chemicals
• 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
The UPW project
2011: Wetlands for a Resort (research)
• Pond• 2 sub-surface constructed wetlands:
• Pebble-sand• Lava
CAPACITY for removal of Nutrients too low
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
Our Conclusions
