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Sulfate Delivery Methods to Accelerate BTEX Biodegradation and Expedite Site Closure
1. Why Add Sulfate to Impacted Subsurface? Natural biodegradation of petroleum hydrocarbons is a useful mechanism to reduce concentration and destroy mass of petroleum hydrocarbons in the subsurface. Natural biodegradation begins through metabolism of petroleum hydrocarbons using electron acceptors that are naturally occurring such as oxygen, nitrate, iron III, or sulfate. When these electron acceptors…