KLI

Kaolinite and illite colloid transport in saturated porous media

Metadata Downloads
Abstract
Understanding the transport of naturally abundant clay colloids is critical in colloid associated contaminant transport in porous media. This study was focused on the impact of the median size of sand grains and the ionic strength of solution on the transport and retention behavior of clay colloids. Two clay samples of kaolinite and illite colloids were selected to represent clay samples containing 1:1 and 2:1 clay minerals, respectively. The observed retention profiles and breakthrough curves demonstrated that the impact of ionic strength on the retention behavior of clay was consistent with other colloidal colloids such as latex colloids or graphene oxide. The quantity of the retained clay increased as the median sizes of sand decreased, and the ionic strength increased from 0 to 0.1 M. However, a similar quantity of retained illite at the ionic strength of 0.01 M and 0.1 M indicates the presence of threshold ionic strength in clay colloid retention. The exponential relationship between sand-to-clay size ratio and first-order retention coefficient at given ionic strength implies the chance in long-term prediction of clay colloid transport from the observed retention profiles.
Author(s)
강민규김태형원종묵최용준최항석
Issued Date
2021
Type
Article
Keyword
KaoliniteIlliteColloid transportRetention profileBreakthrough curve
DOI
10.1016/j.colsurfa.2021.127052
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9204
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A671493551&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Kaolinite%20and%20illite%20colloid%20transport%20in%20saturated%20porous%20media&offset=0&pcAvailability=true
Publisher
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Location
네덜란드
Language
영어
ISSN
0927-7757
Citation Volume
626
Citation Number
1
Citation Start Page
127052
Citation End Page
127052
Appears in Collections:
Engineering > Civil and Environmental Engineering
Authorize & License
  • Authorize공개
Files in This Item:
  • There are no files associated with this item.

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.