Question

What is so specific about sanitary landfills?

• A. Compact hazardous radioctive materials dumped in an isolated place.
• B. Compact hazardous material kept under soil with no leakage and impermeable bottom liners
• C. Compact hazardous material dumped in space.
• D. Recycling hazardous material waste

Answer 1

The correct option is B

Compact hazardous material kept under soil with no leakage and impermeable bottom liners

Sanitary landfills are sites where waste is isolated from the environment until it is safe. It is finally brought out when it has completely degraded biologically, chemically and physically.

The process that is followed in sanitary landfills are as follows:

Each day's trash is compacted, covered with a layer of 15 cm of soil to reduce infiltration, impermeable liners at bottom to prevent leakage of leachate. Finally the matter is brought out when it is considered as safe.