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173 labs · 21 student voices
Faculties at Hokkaido University ›
Yasumasa Tojo, Professor
0 student voices
The Waste Disposal Engineering Lab studies waste from sorting through final disposal. The lab views the waste problem as a "system" that connects generation, sorting, and collection with intermediate treatment, resource recovery, and landfilling. Using both experimental, survey-based, and chemical-analysis methods and approaches such as questionnaires and data analysis, the lab aims to build comprehensive waste treatment systems.
Taku Matsushita, Professor
0 student voices
The Environmental Risk Engineering Lab researches the development and evaluation of new drinking water treatment technologies for producing safe drinking water. Its targets include per- and polyfluoroalkyl substances (PFAS), pesticides, substances that cause chlorine odor, and pathogenic viruses found in tap water. Through laboratory experiments and surveys at actual water treatment plants, the lab investigates how well these substances can be removed by drinking water treatment, and also aims to make recommendations for establishing tap water quality standards. The lab also works on treating PFAS with vacuum ultraviolet light, which has a shorter wavelength than ordinary ultraviolet light, and on evaluating treatability using the outer protein (capsid protein) of norovirus.
Kazuei Ishii, Professor
0 student voices
The Circular Symbiosis Systems Lab researches how to make the fullest use of waste and the unused resources that lie dormant in local communities as new materials and energy. It aims for a society that avoids producing waste as much as possible and uses it as a resource (a circular economy). By combining basic experiments, field surveys, questionnaire and interview surveys, and modeling, the lab proposes waste flows and conversion systems that can actually be used in society. A distinctive feature is that it takes on these problems not only from the technical side but also from the perspectives of economics, institutions, and human psychology and consensus building.
Mayumi Ito, Professor
0 student voices
The Resource Recycling Engineering Lab studies technologies for separating and recovering useful substances from natural resources and waste with little effort and energy. To build a circular society, the "urban mine," a hub for recovering and recycling urban waste as a resource, is the key. The lab conducts basic and applied research on recycling and waste-to-resource technologies, as well as advanced separation and refining technologies for making use of unused resources. The lab also works on environmental conservation technologies that build on these results, and on research to add value to resources.
Naoki Hiroyoshi, Professor
0 student voices
The Resource Chemistry Lab studies mineral processing and smelting, which extract useful metals from ore, as well as the environmental remediation of mines. Under Professor Hiroyoshi, students tackle challenges such as flotation and leaching using both experiments and machine learning models. Under Associate Professor Arima, students investigate mine environmental remediation, focusing on acid mine drainage, and how heavy metals and other substances dissolve out. Students also take part in environmental surveys for an international joint project in Kazakhstan and in field surveys in the Philippines.
Yohei Kawamura, Professor
0 student voices
The Resource Management Lab studies "Smart Mining," which combines mining engineering, the discipline of extracting mineral resources, with information engineering such as AI. Most mines that are easy to work have already been mined out. What remains are dangerous locations deep underground and low-grade deposits that contain only small amounts of metal. To make safe and profitable development possible even in such places, the lab develops technologies such as automation of mining operations, digital twins, and VR and AR. From a geology perspective, Associate Professor Ohtomo studies natural hydrogen, which forms naturally underground, and is also involved in developing technologies that use rocks to reduce carbon dioxide.
Elakneswaran Elakneswaran, Professor
0 student voices
The Geosphere Mass Transfer Lab studies fluid dynamics and mass transfer related to resources and the environment. It investigates how underground water, and the fine particles and dissolved substances moving within it, travel through gaps in rock and through layers of particles. In addition to experiments, numerical analysis, and theoretical analysis, the lab also develops new measurement systems. Some of its themes connect to resource and environmental issues, such as geological disposal of radioactive waste and ore separation without water.
Kazunori Nakashima, Professor
0 student voices
The Resource Bioengineering Lab works to solve problems of resources, the environment, and energy by using and imitating the remarkable functions of the many kinds of organisms found in nature. It uses the ability of microorganisms and other organisms to adsorb metals to remove harmful metals from the environment and to recover valuable metals from urban mines. Learning from beachrock, the rock formed when sand and gravel on a seashore naturally harden, the lab has also developed a technique that uses microorganisms to solidify soil in a short time.
Yoshiaki Fujii, Project Professor
0 student voices
The International Resource and Environment Systems Lab studies a variety of problems related to resources and the environment. Targeting coal mines in Kushiro and mines in Zambia, it investigates the stability of mine tunnels and the design of pillars that support the roof, using numerical analysis and field measurements. The lab also works on coal seam CCS, which confines carbon dioxide in coal seams, and on methods of preventing large earthquakes through water injection.
Norihito Sakaguchi, Professor
0 student voices
The Multiscale Functional Integration Lab evaluates the inside of materials at the atomic level and aims to analyze their properties from the nano to the macro scale as a whole. Working closely with the Ultra-High Voltage Electron Microscope Laboratory, the lab also aims to develop materials analysis methods that combine various kinds of electron microscopes. Using these analysis techniques together with data mining, the lab develops new structural materials, semiconductor materials, and energy materials. Staff members also participate in the Leading Research Center for Green Transformation and the Semiconductor Frontier Education and Research Organization.
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