Groundwater Remediation Applications 

Contaminant

Gas
Delivery

Electron
Donor

Carbon
Source

Process

Hydrocarbons

O2

Contaminant

Contaminant

Aerobic Degradation

Hydrocarbons

O2+ Alkane

Alkane + Contaminant

Alkane + Contaminant

Aerobic Degradation

MTBE

O2

Contaminant

Contaminant

Aerobic Degradation

MTBE

O2+ Alkane

Alkane + Contaminant

Alkane + Contaminant

Aerobic Cometabolism

CAH

H2

H2

In Situ Organics

Anaerobic Degradation

CAH

H2

H2+ Organic Electron Donor

Added Organic

Anaerobic Degradation

CAH

Alkane

Alkane

Alkane

Anaerobic Degradation

CAH

O2+ Alkane

Alkane

Alkane

Aerobic Cometabolism

CAH

O2

Alkane

In Situ Organics (natural Methane)

Aerobic Cometabolism

CAH (Vinyl Chloride)

O2

Contaminant

Contaminant

Aerobic Degradation

CAH (Vinyl Chloride)

O2+ Alkane

Ethene + Contaminant

Ethene + Contaminant

Aerobic Degradation

Ammonia

O2

Ammonia

In Situ Organics or CO2

Nitrification (Aerobic)

Nitrate

H2 +/- CO2

H2

In Situ Organics or CO2

Denitrification (Anaerobic)

Perchlorate

H2 +/- CO2

H2 Organic or CO2

In Situ Organics or CO2

Dissimilatory Reduction (Anaerobic)

1-4, Dioxane

O2+ Propane

Propane

In Situ or Added Organics

Aerobic Cometabolism