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REMEDIATION OF A FORMER TANK FARM SAVIKTOK POINT, NWT Philippe Gingras Biogénie S.R.D.C. Inc.

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REMEDIATION OF A FORMER TANK FARMSAVIKTOK POINT, NWT

Philippe GingrasBiogénie S.R.D.C. Inc.

Saviktok Point Tank Farm

Page 3: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Tuktoyaktuk

Page 4: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

TuktoyaktukGeneral View

Saviktok Point

Page 5: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Site Characteristics• No source of electrical power

• Sea access only• Remote location• Limited availability of equipment, materials and manpower• Hydrocarbon contamination – 25,000 m3

• Biological treatment was preferred solution

Page 6: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Keys of Biological Treatment• O2 is required to maximise the degradation of contaminants

• Heat is required to sustain microbial activity• Nitrogen and Phosphorous• Neutral pH, loose structure and moisture content

Page 7: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Treatment Technologies

Page 8: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Bench Scale Trials

Page 9: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Wind Turbines

Page 10: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Saviktok PointBioremediation Efficiency

500

1000

1500

2000

2500

3000

3500

4000

4500

0 3 6 12 16 18 21 240

TPH Conc.GuidelineT (ºC)

Winter 00-01

Winter 01-02

Results

• 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg)• 85% Average reduction of concentrations

4,136 mg/kg to 649 mg/kg

• Average temperatures of 30 ºC during treatment• Soils were recycled as landfill cover material

• Three seasons of treatment

Page 12: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Other examples

Page 13: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Other Applications

Page 14: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Other Applications

Page 15: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Other Applications

Page 16: Philippe Gingras Biogénie S.R.D.C. Inc. - ESAA · Results • 17,000 m3 treated to NWT Industrial Standard (2,500 mg/kg) • 85% Average reduction of concentrations 4,136 mg/kg to

Saviktok PointBenefits

• Minimization of soil handling

• Utilization of a wind-powered aeration system

• Adapted design of the biological treatment to site-specific conditions

• Maximum use of local resources

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