Bioremediation is any process that uses living microorganisms or their enzymes, to return a polluted environment to its original condition. As such, it uses relatively low-cost, low-technology techniques, such as using environment-friendly microorganisms which generally have a high public acceptance and can be used on the site [26]. It constitutes the use of natural biota and their processes for pollution reduction and the end products are non-hazardous [27].