• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2014 Fiscal Year Final Research Report

Study on the mechanisms of radiocesium sorption/desorption on soil containing waste: Effects of organic matter through experimental and MD approaches

Research Project

  • PDF
Project/Area Number 24561036
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionHokkaido University

Principal Investigator

WATANABE Naoko  北海道大学, 工学(系)研究科(研究院), 准教授 (20624711)

Co-Investigator(Kenkyū-buntansha) KOZAKI Tamotsu  北海道大学, 工学研究院, 教授 (60234746)
Project Period (FY) 2012-04-01 – 2015-03-31
Keywords放射性セシウム / 土壌 / 収脱着 / MD計算 / 有機物
Outline of Final Research Achievements

To gain understanding on the long-term stability of the soil waste containing radiocesium for interim storage and disposal, effects of organic matter on the interaction between clay mineral surfaces and Cs were studied. Different sorption sites on mineral surfaces, including planar and interlayer surfaces as well as edges, were assumed to model the sorption experiment results to obtain the results that each site is affected differently by the presence of organic matter in the solution phase: sorption capacity of the interlayer sites of montmorillonite decreased with the presence of humic acid, and the selectivity on the illite FES site increased with the presence of fulvic acid. In addition, molecular dynamics simulation revealed the structure of a very strong innersphere complex formed at K-mica edges.

Free Research Field

放射性廃棄物工学

URL: 

Published: 2016-06-03  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi