Factors limiting petrol hydrocarbon biodegradation at in-situ conditions

Within this project the feasibility of an in-situ biotreatment to remediate an oil-spill is studied. Biological and physical-chemical constraints are investigated either in the laboratory or in the field. In soil column experiments degradation conditions occurring in the vadose as well as saturated soil zone are simulated. Information on biodegradation rates and achievable residual hydrocarbon concentrations is gathered. In the field soil permeability and in-situ degradation rates are investigated. Possibilities for oxygen, water, and nutrient supply are evaluated.