Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience...

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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.

Transcript of Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience...

Page 1: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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.

Page 2: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Core Activities

Passive Water

Treatment

Licensing and Permitting

Biorestoration

Contract Research &

Process Development

Page 3: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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

Page 4: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

CWTS

• Acid mine drainage

• Mine effluent & seepage

• Energy derived produced

or process waters

• Industrial processes

• Cold climate

• Post-closure

Page 5: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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)

Page 6: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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

Page 7: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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

Page 8: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Scaling approach

Pilot

Demonstration

Full

Page 9: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Pilot-scale CWTS

Page 10: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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

Dis

solv

ed O

xyg

en m

g/L

hrs

trial 1

trial 2

Page 11: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

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

Page 12: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Removal rate coefficients and sizing

Page 13: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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Se U Pb As

As Al Mn

Fe

Sequential treatment

S

Page 14: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Acclimation and Maturation

Page 15: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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Functioning Properly Non-Functioning

Samples

Diff

eren

t Typ

es o

f Bac

teria

Microbial Community Profiling

Page 16: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Licensing and Permitting

Page 17: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

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Locations of Projects in Canada

Page 18: Constructed Wetland Treatment Systems (CWTS)€¦ · forward looking, lateral thinking . Experience • CWTS across North America • Elements, arsenic, cadmium, chromium, cobalt,

forward looking, lateral thinking

Thank-You

contangostrategies.com [email protected] Phone: 306 978 3111