Constructed Wetland Treatment Systems (CWTS) forward looking, lateral thinking . Experience ¢â‚¬¢ CWTS

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  • forward looking, lateral thinking

    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.

  • forward looking, lateral thinking

    Core Activities

    Passive Water

    Treatment

    Licensing and Permitting

    Biorestoration

    Contract Research &

    Process Development

  • forward looking, lateral thinking

    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

  • forward looking, lateral thinking

    CWTS

    • Acid mine drainage

    • Mine effluent & seepage

    • Energy derived produced

    or process waters

    • Industrial processes

    • Cold climate

    • Post-closure

  • forward looking, lateral thinking

    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)

  • forward looking, lateral thinking

    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

  • forward looking, lateral thinking

    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

  • forward looking, lateral thinking

    Scaling approach

    Pilot

    Demonstration

    Full

  • forward looking, lateral thinking

    Pilot-scale CWTS

  • forward looking, lateral thinking

    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

    D is

    so lv

    ed O

    xy g

    en m

    g /L

    hrs

    trial 1

    trial 2

  • forward looking, lateral thinking

    Design Optimization + Scientific testing = Predictable Treatment

    0.0000

    0.0050

    0.0100

    0.0150

    0.0200

    0.0250

    0.0300

    m g

    /L

    Selenium

    0

    0.01

    0.02

    0.03

    0.04

    0.05

    0.06

    0.07

    0.08

    0.09

    0.1

    m g

    /L

    Uranium

    0

    0.001

    0.002

    0.003

    0.004

    0.005

    0.006

    0.007

    0.008

    0.009

    0.01

    m g

    /L

    Lead

    0

    0.05

    0.1

    0.15

    0.2

    0.25

    0.3

    0.35

    m g

    /L

    Arsenic

  • forward looking, lateral thinking

    Removal rate coefficients and sizing

  • forward looking, lateral thinking

    Se U Pb As

    As Al Mn

    Fe

    Sequential treatment

    S

  • forward looking, lateral thinking

    Acclimation and Maturation

  • forward looking, lateral thinking

    Functioning Properly Non-Functioning

    Samples

    D iff

    er en

    t T yp

    es o

    f B ac

    te ria

    Microbial Community Profiling

  • forward looking, lateral thinking

    Licensing and Permitting

  • forward looking, lateral thinking

    Locations of Projects in Canada

  • forward looking, lateral thinking

    Thank-You

    contangostrategies.com info@contangostrategies.com Phone: 306 978 3111

    Slide Number 1 Core Activities About us CWTS Experience Our approach How can we be confident in performance? Scaling approach Pilot-scale CWTS Develop Explanatory Parameters Design Optimization + Scientific testing�= Predictable Treatment Removal rate coefficients and sizing Sequential treatment Acclimation and Maturation Slide Number 15 Licensing and Permitting Locations of Projects in Canada Thank-You