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Bioventing
Airsparging
Bioslurping
Bioreactor
Bioaugmentation
This process applies to contamination in the vadose zone (unsaturated: above WT)
This process applies to contamination in the saturated zone (below the WT)
This process applies to contamination in the vadose zone (above WT)
Bioventing and Air sparging
Air sparging and Bioaugmentation
Vacuum enhanced free product recovery and bioventing
Vacuum enhanced free product recovery and air sparging
In none of the above, both technologies are correct.
Stable/shrinking plume
High levels of Oxygen, Nitrate or Sulphate
Metabolic by products (Ferrous Iron etc)
Active, heterophobic bacteria
You would expect to see all of the above.
TRUE
FALSE
No further (harmful) compounds injected into ground
No action = no cost, no machinery & no pollution
Less remediation waste is generated.
No monitoring is required.
Yes, with an apt supply of nutrients
Yes, but no nutrients would be required
No, organic gases simply escape to the atmosphere
No, organic gases can only be treated using chemical treatment.