Post on 11-Mar-2020
REMEDIATION OF A FORMER TANK FARMSAVIKTOK POINT, NWT
Philippe GingrasBiogénie S.R.D.C. Inc.
Saviktok Point Tank Farm
Tuktoyaktuk
TuktoyaktukGeneral View
Saviktok Point
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
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
Treatment Technologies
Bench Scale Trials
Wind Turbines
Saviktok PointBioremediation Efficiency
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0 3 6 12 16 18 21 240
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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
Other examples
Other Applications
Other Applications
Other Applications
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