Project Details

JST HOME SATREPS HOME ProjectsDisaster Prevention and Mitigation

Main content

Environment/Energy (Carbon Neutrality)

Problem image
  • SDGs13
  • SDGs09
  • SDGs12
Principal Investigator (Affiliation) japan Associate Prof.
IIZUKA Atsushi
(Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University) researchmap
Republic of South Africa Prof.
Tunde Victor Ojumu
(Cape Peninsula University of Technology (CPUT))
Research Institutions in Japan Tohoku University / Seikei University / Fukuoka Institute of Technology / Taiheiyo Cement Corporation
Research Institutions in South Africa Cape Peninsula University of Technology / University of Cape Town / University of the Western Cape / Council for Geoscience
Adoption fiscal year FY 2020
Research Period 5 Years
ODA Recipient Country Republic of South Africa
General Description of the Research Project

Develop a carbon recycling system using mineral carbonation as a step toward climate neutrality
The cement industry is taking various approaches to the reduction of CO2 emissions. Our approach is to focus on process-related CO2 emissions that account for 60 percent of the industry's CO2 emissions, and to develop a carbon recycling system based on performing mineral carbonation of alkaline by-products and waste materials. The resulting carbonates are recycled for use in cement production. Resources that cannot be recycled are used as environmental purification materials, thereby creating a new circulation loop.

Use mineral carbonation to reduce carbon emissions, and contribute to the circular economy with environmental purification materials
We are advancing toward carbon neutrality by developing technologies with low CO2 marginal abatement costs for making equipment that can easily be procured, operated, and maintained by entities in developing countries. In addition, low-cost, useful products like environmental purification materials made from alkaline by-products and waste products are being developed, and it is expected that they will be used also for the treatment of acid mine drainage.

Photo gallery

Environmental pollution caused by acid mine drainage in South Africa


Concrete demolition debris outside of Cape Town

Research Project Web site -
Press Release -
Reports -
Links -

Project Map | Project List