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Resources Processing Engineering (Gde Pandhe Wisnu Suyantara) Lab
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A lab that treats arsenic-bearing copper ores by flotation in an environmentally friendly way.
AboutAbout the lab
Processing arsenic-bearing copper ores with care for the environment.
The lab develops environmentally friendly, resource-efficient technologies for processing complex copper ores that contain arsenic.
Its main research is on separating arsenic-bearing copper minerals from primary copper sulfide ores by flotation, and it also puts effort into developing environmentally friendly flotation reagents.
The lab also conducts research that pays attention to water resources and environmental impact, such as flotation using seawater or recycled water and the reuse of flotation tailings.
Associate Professor Gde Pandhe Wisnu Suyantara belongs to the Department of Earth Resources Engineering in the Faculty of Engineering, and holds a concurrent appointment in the Department of Interdisciplinary Science and Innovation in the School of Interdisciplinary Science and Innovation.
Key terms
- Flotation
- A method of separating a target mineral by using differences in the surface properties of minerals. Also called froth flotation.
- Copper sulfide ore
- Sulfide minerals that contain copper, such as chalcopyrite, bornite, covellite, and chalcocite.
- Flotation tailings
- The material left over after the target mineral has been recovered by flotation.
ResearchResearch themes
The lab develops environmentally friendly, resource-efficient technologies for processing complex copper ores that contain arsenic. Its research spans interfacial chemistry, flotation engineering, and environmental engineering, and aims to propose sustainable solutions in the field of mineral resource processing.
*Illustrative imageSelective Flotation of Arsenic-Bearing Copper Minerals
The lab studies selective flotation, which separates arsenic-bearing copper minerals such as arsenopyrite from primary copper sulfide ores such as chalcopyrite and chalcocite. It is also developing environmentally friendly flotation reagents using organic acids, amino acids, and metal-based nanoparticles, and studying how oxidation with hydrogen peroxide can be used to control the surface properties of minerals.
*Illustrative imageFlotation Using Seawater and Recycled Water
For the sustainable use of water resources, the lab focuses on the practicality of flotation with seawater and recycled water, aiming to solve problems faced by mines in arid regions and coastal areas. Using analytical methods such as X-ray photoelectron spectroscopy and atomic force microscopy, it investigates the mechanisms of interfacial reactions between minerals and reagents at the nanoscale.
*Illustrative imageReducing the Environmental Impact of Mineral Processing
The lab conducts research that incorporates the idea of a circular economy, such as the reuse of flotation tailings and the application of minerals as photocatalytic materials for hydrogen production.
MembersFaculty
- Associate ProfessorGde Pandhe Wisnu Suyantara
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Flotation cell” Dhatfield / CC BY-SA 3.0 (cropped)
- Selective Flotation of Arsenic-Bearing Copper Minerals: “Chalcopyrite-Arsenopyrite-33955” Robert M. Lavinsky / CC BY-SA 3.0 (cropped)
- Flotation Using Seawater and Recycled Water: “Orzel Bialy mine flotation plant” 作者不詳 / Public domain (cropped)
- Reducing the Environmental Impact of Mineral Processing: “Goro mine tailings dam” Barsamuphe / CC BY 3.0 (cropped)
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