Question

Drainage pipes of leachate collection system is filled with ________

(a) Gravel

(b) Dust

(c) Clay

(d) Grass

I got this question by my college director while I was bunking the class.

Question is taken from Landfill Disposal in division Landfill Disposal of Hazardous Waste Management

Answer 1

Correct choice is (a) Gravel

To explain: The leachate collection system comprises a network of drainage pipes and is covered with a sand/gravel drainage layer.