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Which among the following is NOT an example of In situ bioremediation techniques?

Which among the following is NOT an example of In situ bioremediation techniques? Correct Answer Biopiles

The Correct Answer is Option 3 i.e Biopiles.

  • In situ bioremediation techniques: It involves treatment of the contaminated material at the site.
    • Example: Bioventing, Biosparging, Bioaugmentation.
  • Ex Situ bioremediation techniques: It involves the removal of the contaminated material to be treated elsewhere.
    • Example: Landfarming, Biopiles, Bioreactors, Composting.
  • Bioventing: Supply of air and nutrients through wells to contaminated soil to stimulate the growth of indigenous bacteria.
  • 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 the degradation process.
  • Biopiles: It is a hybrid of landfarming and composting. Typically used for treatment of surface contamination with petroleum hydrocarbons.

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