Bioremediation of Contaminated Soil, Conventional Land-Farming Techniques, Nutrients, Microbes, Amendments

www.molecular-plant-biotechnology.info

Home >> Biotechnology and Enviroments >> Bioremediation >> Bioremediation of Contaminated Soil

	Bioremediation of Contaminated Soil Only Soil contamination can be bioremedied by any one or more of the following methods: (i) Conventional land-farming techniques used by many oil companies involve placement of 6 to 12 inches of contaminated soil on top of sand/gravel bd in a treatment cell. Nutrients, water, microbes and other amendments are sprayed over the soil, which is periodically tilled, for the microbes to get oxygen. Leachate collected is sprayed back on the contaminated soil.
(ii) Soil-slurry biotreatment is the second method of choice and involves the use of a vessel containing soil-water slurry (contaminated soil making 1-30% of slurry by volume). Nutrients are regularly supplied and soil-wter slurry is vigorously agitated to allow aeration. (iii) Bioreactor technology, as described in the previous section above, can also be used for bioremediation of contaminated soils