Engineering Board Exam Reviewer · Environmental Engineering · medium

Groundwater contamination from a landfill is prevented primarily by:

1. Planting trees on top
2. A low-permeability liner and leachate collection system
3. Increasing waste density only
4. Burning the waste

Answer

B. A low-permeability liner and leachate collection system

Solution

Composite liners of compacted clay and geomembrane (HDPE) are common.

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