Abstract
Platinum group metal (PGM) miners and recycling facilities are losing ∼$2 billion (~10% of the total market value) of PGM annually in wastewater and tailing. The membrane biofilm reactor (MBfR) is a modular biotechnology which contains a microbial community that can reduce and recover PGMs and potentially precious metals inclduing gold (Au) at mining, refining, or manufacturing sites at concentrations between 0.04 and -500 ppm. The biofilm employed in the MBfR naturally accumulates PGMs, particularly palladium (Pd) and platinum (Pt), as nanoparticles that have high economic value due to their high specific surface area and superior catalytic capability. In addition, when recovered as nanoparticles using an MBfR, PGMs have ∼6x more value than bulk PGMs. In contrast, conventional physical and chemical processes for PGM recovery are costly and introduce contamination into the environment. Thus, MBfR technology is a relatively low-cost and benign alternative to conventional PGM recovery techniques.
Original language | English (US) |
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Title of host publication | TechConnect Briefs 2018 - Materials for Energy, Efficiency and Sustainability |
Editors | Bart Romanowicz, Fiona Case, Fiona Case, Matthew Laudon |
Publisher | TechConnect |
Pages | 134-137 |
Number of pages | 4 |
Volume | 2 |
ISBN (Electronic) | 9780998878232 |
State | Published - Jan 1 2018 |
Externally published | Yes |
Event | 11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo,the 2018 SBIR/STTR Spring Innovation Conference, and the Defense TechConnect DTC Spring Conference - Anaheim, United States Duration: May 13 2018 → May 16 2018 |
Other
Other | 11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo,the 2018 SBIR/STTR Spring Innovation Conference, and the Defense TechConnect DTC Spring Conference |
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Country/Territory | United States |
City | Anaheim |
Period | 5/13/18 → 5/16/18 |
Keywords
- Biofilm
- Bioremediation
- Platinum group metals
- Precious metal recovery
- Wastewater treatment
ASJC Scopus subject areas
- General Materials Science