Estimate the thickness of a clay layer that would be required to limit the flow of leachate from the bottom of a landfill to a value of 1.0 mm/d. Assume the hydraulic conductivity of the clay material is 5 × 10-8 m/s and that the surface of the groundwater is 0.68 m below the surface of the leachate collected in the bottom of the landfill.

Estimate the thickness of a clay layer that would be required to limit the flow of leachate from the bottom of a landfill to a value of 1.0 mm/d. Assume the hydraulic conductivity of the clay material is 5 × 10-8 m/s and that the surface of the groundwater is 0.68 m below the surface of the leachate collected in the bottom of the landfill.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.

Question

10.5. Estimate the thickness of a clay layer that would be required to limit
the flow of leachate from the bottom of a landfill to a value of 1.0
mm/d. Assume the hydraulic conductivity of the clay material is
5 x 10-8 m/s and that the surface of the groundwater is 0.68 m
below the surface of the leachate collected in the bottom of the
landfill.

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