Chemica Resource Laboratory

Midterm presentations by B4 students held (2025/11/14)

The midterm presentations for B4 students were held, and four students from our laboratory delivered their poster presentations.

D3 Abel Abebe Ersulo and M1 Konno Presented at an International Conference (2025/11/14)

D3 student Abel Abebe Ersulo and M1 student Konno participated in Geo-Environmental Engineering and Recycling 2025 at Waseda University and delivered research presentations.

D3 Casey Turingan Participated in an International Conference and Received an Award (2025/10/30)

D3 student Casey Turingan delivered a research presentation at The 29th Regional Symposium on Chemical Engineering (RSCE 2025) and received an award for her work. Congratulations, Casey!

Arima-Sensei Delivered a Presentation at the 3rd Symposium on Computational Science in the AI Era (2025/10/8)

Arima-Sensei delivered a presentation at the “3rd Symposium on the Interdisciplinary Hub for Social Implementation of Computational Science in the AI Era,” hosted by the University of Tsukuba. In his talk, he presented the outcomes of a collaborative research project conducted with EXEO Group, Inc.

D3 Thaw Dar Wunn Attended the Degree Conferment Ceremony as Valedictorian (2025/9/25)

PhD third-year student Thaw Dar Wunn received her degree from President Hōkin as the valedictorian of the Graduate School of Engineering. Congratulations, Thaw, on earning your degree and graduating!

M1 Konno and Arima-Sensei Conducted an Environmental Survey in Kazakhstan (2025/9/16)

M1 student Konno and Arima-Sensei conducted an environmental survey in Kazakhstan as part of the SATREPS project “Smart Mining+: Development of an Environmentally Harmonious Mining System That Does Not Cause Environmental Destruction.” This large-scale project will continue through FY2029.
Reference: https://www.jst.go.jp/global/kadai/r0601_kazakhstan.html

International Field Survey Conducted for M1 Student Mr. Aeron (2025/9/8)

An international field survey was conducted for Aeron, a first-year master’s student and international student from the Philippines. The objective of this survey was to evaluate environmental pollution caused by mercury-based gold extraction processes. Similar environmental issues exist worldwide, making this an important research topic. Prior to the survey, a workshop titled “Sustainable Mining Development for Artisanal Small-Scale Gold Mining (ASGM): From Assessment to Mitigation of Geo-environmental Impact in the Philippines” was held in Manila with participation from JICA, AIST, and local researchers. We sincerely appreciate JICA’s support and AIST’s involvement in both the workshop and field survey.

D3 Thaw Dar Wunn Presented at AEGC 2025 and Received an Award (2025/9/8)

D3 student Thaw Dar Wunn delivered a research presentation at the Australasian Exploration Geoscience Conference 2025 (AEGC 2025). Thaw also received third place in the Geo-Pitch presentation competition. Congratulations, Thaw!

Held the laboratory summer party. (2025/8/4)

As the first semester’s seminar activities concluded, we held the laboratory summer party.

Our laboratory alumnus Mr. Taichi Matsuzaki was granted a 50% waiver on the repayment of his Type 1 Graduate School Scholarship. (2025/8/4)

Mr. Taichi Matsuzaki, who completed his master's program in our laboratory in March 2024, was granted a 50% waiver on the repayment of his Type 1 Graduate School Scholarship. During his studies, Mr. Matsuzaki actively engaged in research activities, giving two presentations at international conferences and receiving one Outstanding Presentation Award. Congratulations, Mr. Matsuzaki.

Public dissertation presentation by third-year doctoral student Ms. Thaw Dar Wunn was held (2025/7/30)

The public dissertation presentation by third-year doctoral student Ms. Thaw Dar Wunn was held. The title of her dissertation is “Sustainable management of a legacy mine considering long-term contaminant transport.”

An academic paper by Assistant Professor Arima was published (2025/7/20)

An academic paper authored by Assistant Professor Arima as the first and corresponding author, entitled “Geochemical behavior and environmental implications of arsenic in roasted tailings from the Vatukoula Epithermal Gold Mine in Fiji,” has been published in *Environmental Geochemistry and Health*. This study clarified, through laboratory experiments, how arsenic occurs in ores from the Vatukoula gold mine in Fiji, how it changes when the ores are roasted, and how it behaves in the tailings storage facilities where the residues are deposited.
Reference link: https://doi.org/10.1007/s10653-025-02643-1

Visited Moriyama Eco Park. (2025/7/14)

Second-year master's student Mr. Murata, and first-year master's students Mr. Goto and Mr. Konno visited Moriyama Eco Park in Shiga Prefecture, a site of our joint research.

Master’s first-year student Goto presented at a domestic academic conference (2025/6/18)

Master’s first-year student Goto gave a poster presentation at the 143rd Annual Conference of the Society of Environmental and Resource Engineering, held at Hokkaido University under the theme “Resources and Information / Biotechnology.”

Second-year master's student Mr. Murata gave a presentation at an international conference. (2025/05/23)

Second-year master's student Mr. Murata gave a presentation at the 23rd Global Joint Seminar on Geo-Environmental Engineering held in Montreal, Canada.

Our laboratory's joint research has been featured on the Hokkaido University website. (2025/05/14)

Professor Hiroyoshi, Assistant Professor Arima, and second-year master's student Mr. Murata from our laboratory have been conducting a joint research project titled "Optimization of Stirring Conditions During Waste Incineration Using Supercomputers and AI – A Demonstration Project to Replace Skilled Operators" in collaboration with the University of Tsukuba, EXEO Group Inc., in Moriyama City. This project has been featured on the Hokkaido University website.
Reference link: https://www.hokudai.ac.jp/news/pdf/250514_pr2.pdf

Welcome party for new fourth-year students was held. (2025/04/23)

We held a welcome party for the four new fourth-year students who joined our laboratory.

Mitsubishi Materials Exchange Event Held (2025/4/16)

As part of a collaborative activity with the Laboratory of Environmental Remediation for Resources, which is supported by donations and hosted by Professor Hiroyoshi, an exchange event was held with Mitsubishi Materials Corporation.

Kick-off Meeting Held for SATREPS Project on "Next-generation Smart Mining Plus for Sustainable Resources Development"(2025/4/15)

On April 15, 2025, the kick-off meeting for the SATREPS project titled "Next-generation Smart Mining Plus for Sustainable Resources Development" was held in Tokyo. Professor Hiroyoshi and Assistant Professor Arima are participating in this international research initiative. The project is a large-scale endeavor scheduled to continue through the 2029 fiscal year, aiming to establish environmentally harmonious and sustainable mining development systems that do not cause environmental degradation.
Reference:https://www.jst.go.jp/global/kadai/r0601_kazakhstan.html

Professor Elaknes has been transferred to the Laboratory of Groundwater and Mass Transport.(2025/04/01)

Professor Elaknes, who had been an associate professor in our laboratory,
has been promoted full professor!
Congratulation!
Along with this promotion, he has moved to the Laboratory of Groundwater and Mass Transport.
We wish him continued success in the future!

The homepage has been updated!(2024/4/23)

The Resource Chemistry Laboratory homepage has been updated!
Thank you for your continued support.

Chemical Resources Laboratory

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