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KSCE Journal of Civil Engineering

, Volume 23, Issue 2, pp 507–512 | Cite as

Investigation of Groundwater Pollution Minimization using Compacted Bentonite Barriers

  • Thair Jabbar Mizhir AlfatlawiEmail author
  • Sanaa Shamki Alkafaji
Environmental Engineering
  • 24 Downloads

Abstract

Compacted bentonite is used as engineered barriers in contaminate site. The aim of this paper is to assess the effect of a barrier thickness and bentonite percentage to minimize groundwater pollution. Groundwater model is constructed to simulate solute transport. In order to control the migration of toxic, a compacted bentonite barriers are proposed with different thicknesses such as 1.5, 2 and 2.5 cm and different bentonite percentages (20, 35 and 50%). According to the experimental results, it found that the hydraulic conductivity decreases with the increase of bentonite percentage and bentonite percentages varies between (20–50) % seem to be suitable for constructing hydraulic barriers taking into consideration that barrier thickness is an important parameter in such cases. Results show that removal efficiency reaches about 61.8% in experimental model. Numerical modelling affirmed an acceptable coincidence with experimental results and it can be used successfully to simulate such phenomena.

Keywords

compacted bentonite MODFLOW Flux 2015.1 groundwater model hydraulic conductivity barrie thickness 

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Copyright information

© Korean Society of Civil Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Thair Jabbar Mizhir Alfatlawi
    • 1
    Email author
  • Sanaa Shamki Alkafaji
    • 1
  1. 1.Dept. of Civil EngineeringUniversity of BabylonBabylonIraq

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