From Soil Remediation
Bioremediation is the process where organic contaminants are degraded by the metabolic action of aerobic, microaerophilic, anaerobic microorganisms and fungi. Biodegradation of organic compounds is a natural process where microorganisms gain energy and cell mass through the usage of organic carbon. The organisms are “obligatorily mutualistic” or, in other words, are producing by products that other strains will utilize in their catabolic reactions. Natural degradation rates are hampered by the limited supply of oxygen and nutrients in the subsurface and the presence of other non-degrading organisms which compete for the limited resources.
Brown Environmental practices bioaugmentation which includes the engineering of the soil and/or groundwater environment to create and maintain optimum physical, chemical, and biological conditions to promote the rapid bioremediation of these media. Bioremediation amendments can be mixed into the soil with a soil aerator or with an onsite pug mill system. Furthermore, a biopile may be constructed to place the material into a contained treatment cell depending upon contaminant concentrations, anticipated treatment times, weather conditions, and the available remedial treatment area.