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♤ It involves treatment of the contaminated material at the site.
♤ Bioventing - supply of air and nutrients through wells to contaminated soil to stimulate the growth of indigenous bacteria. It is used for simple hydrocarbons and can be used where the contamination is deep under the surface.
♤ Biosparging - Injection of air under pressure below the water table to increase groundwater oxygen concentrations and enhance the rate of biological degradation of contaminants by naturally occurring bacteria
♤ Bioaugmentation - Microorganisms are imported to a contaminated site to enhance degradation process.
Do you know?
The jaws of the snakes are not fused together. That means that unlike our jaws, snakes jaws are not hooked up at the back of their mouths. This makes it possible for them to eat very big meals, bigger than their own heads!