This document presents an overview of bioremediation and the enzymes used. It discusses how bacteria, fungi, and plant enzymes are involved in biodegrading toxic pollutants. Major enzymes discussed include lignin peroxidase, horseradish peroxidase, and manganese peroxidase. Advantages of bioremediation are that it is relatively inexpensive and doesn't require removing contaminated soil. Limitations include difficulty controlling bacteria and limited effectiveness on non-biodegradable compounds.