Constructed Wetland Treatment Systems (CWTS) - … Wetland Treatment Systems (CWTSs) for water...
Transcript of Constructed Wetland Treatment Systems (CWTS) - … Wetland Treatment Systems (CWTSs) for water...
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Constructed Wetland Treatment Systems (CWTSs)
for water treatment of multiple elements, organic compounds, and nutrients
Monique Haakensen, PhD, PBiol, EP
Contango Strategies Ltd
Haakensen, M., Terry, M.W., Castle, J.W., and Rodgers, J.H.
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Core Activities
Passive Water
Treatment
Licensing and Permitting
Biorestoration
Contract Research &
Process Development
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About us
Expertise • Microbiology • Biochemistry • Biogeochemistry • Molecular Processes • Genomics • Toxicology
• Partner with: Engineering, Bioinformatics and others as needed
Facilities • Laboratory • All-season greenhouses • Outdoor pilot facilities • Saskatoon, SK
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CWTS
• Acid mine drainage
• Mine effluent & seepage
• Energy derived produced
or process waters
• Industrial processes
• Cold climate
• Post-closure
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Experience
• CWTS across North America
• Elements, arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, selenium, sulphur, vanadium and zinc
• Organics and nutrients (ammonia, phosphate, hydrocarbons, other)
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Our approach • Site specific, case-by-case
• Scientific testing and optimization
• Sequester contaminants into the soil or sequentially degrade
• Design to avoid toxic buildup in soil
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How can we be confident in performance? • Scientific Design • Modeling, optimizing • Pilots, demonstration scale (early in operations) • Testing and validation of design
• Water • Sediments • Plants • Toxicology
• Contingency
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Develop Explanatory Parameters • Redox (Eh) • Alkalinity • pH • Dissolved Oxygen • Nutrients
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 10 20 30
Dis
solv
ed O
xyg
en m
g/L
hrs
trial 1
trial 2
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Design Optimization + Scientific testing = Predictable Treatment
0.0000
0.0050
0.0100
0.0150
0.0200
0.0250
0.0300
mg
/L
Selenium
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
mg
/L
Uranium
0
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.01
mg
/L
Lead
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
mg
/L
Arsenic
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Functioning Properly Non-Functioning
Samples
Diff
eren
t Typ
es o
f Bac
teria
Microbial Community Profiling
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Thank-You
contangostrategies.com [email protected] Phone: 306 978 3111