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Important Facts For Prelims

Leachate Treatment

  • 17 Jul 2019
  • 1 min read

The South Delhi Municipal Corporation (SDMC) has commissioned a leachate treatment plant at the Okhla landfill to overcome the problem of seepage during monsoons.

  • Leachate is the black, foul-smelling toxic liquid emanating from rotting garbage at landfills, which not just has fungus and bacteria in it but harmful chemicals as well.
  • It gets accumulated at the bottom of the landfill and percolates down through the soil contaminating the groundwater. It contaminates surface water as well.
  • Such contamination of groundwater resources poses a substantial risk to local resource users and to the natural environment.
  • Leachate generation is a major problem for municipal solid waste (MSW) landfills.
  • Leachate treatment options include recycling, on-site treatment, discharge to a municipal sewage treatment plant, or a combination of these approaches.
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