Leachate generated from a legacy municipal solid waste dumping site has to be collected and managed carefully. Which one of the following statements is correct in the context of treatment of leachate from such a site?
- Settling chamber followed by micro-filtration units are required.
- Modular treatment units targeting dissolved organic matter and salts are required.
- Only biological treatment units like ASP with extended aeration are required.
- Only a combination of anaerobic-aerobic treatment units is required.
