Impacts of Phosphorous Source on Organic Acid Production and Heterotrophic Bioleaching of Rare Earth Elements and Base Metals from Spent Nickel-Metal-Hydride Batteries

Autor: Payam Rasoulnia, Aino-Maija Lakaniemi, Kati Valtonen, Robert Barthen

Publikováno v: Waste and Biomass Valorization. 12:5545-5559

This study investigated heterotrophic bioleaching of rare earth elements (REEs) and base metals from spent nickel-metal-hydride (NiMH) batteries. Furthermore, the impacts of phosphorous source [Ca3(PO4)2, KH2PO4 and K2HPO4] and its concentration on o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7388e76a6d379ee32b0768371a0ea2c
https://doi.org/10.1007/s12649-021-01398-x

Enhancing thermophilic dark fermentative hydrogen production at high glucose concentrations via bioaugmentation with Thermotoga neapolitana

Autor: Onyinye Okonkwo, Giovanni Esposito, Stefano Papirio, Aino-Maija Lakaniemi, Eric Trably, Renaud Escudié

Publikováno v: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2020, 45 (35), pp.17241-17249. ⟨10.1016/j.ijhydene.2020.04.231⟩
International Journal of Hydrogen Energy, 2020, 45 (35), pp.17241-17249. ⟨10.1016/j.ijhydene.2020.04.231⟩

The aim of the present study was to investigate the effect of gradually increasing glucose concentrations (from 5.6 to 111 mmol L−1) on the fermentative H2 production with and without bioaugmentation. A stirred tank reactor (STR) was operated at 70

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8a21c736446139a213ba78ad05e14b9
https://doi.org/10.1016/j.ijhydene.2020.04.231

A critical review of bioleaching of rare earth elements: The mechanisms and effect of process parameters

Autor: Payam Rasoulnia, Aino-Maija Lakaniemi, Robert Barthen

Publikováno v: Critical Reviews in Environmental Science and Technology. 51:378-427

Rare earth elements (REEs) are important high-tech materials with widespread industrial applications and a high risk of supply disruption. Current physico-chemical methods for REE recovery are energy intensive, complex, and costly. Thus, it is crucia

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6838fa170088229174634390a9ae3ac2
https://doi.org/10.1080/10643389.2020.1727718

Removal and recovery of metal ions from acidic multi-metal mine water using waste digested activated sludge as biosorbent

Autor: Robert Barthen, Rohan Jain, Sirpa Peräniemi, Mira L.K. Sulonen, Aino-Maija Lakaniemi

Highly acidic and toxic metal ion containing acid rock drainage (ARD) can cause severe environmental problems and endanger aquatic life. However, due to the high metal ion containing ARD is an auspicious source of metals for recovery and reuse. The f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4267de0ac721c2274a5cac110a43bea6
https://trepo.tuni.fi/handle/10024/135873

Bioaugmentation enhances dark fermentative hydrogen production in cultures exposed to short-term temperature fluctuations

Autor: Aino-Maija Lakaniemi, Nicolas Bernet, Onyinye Okonkwo, Renaud Escudié, Rahul Mangayil, Eric Trably

Publikováno v: Applied Microbiology and Biotechnology
Applied Microbiology and Biotechnology, Springer Verlag, 2020, 104 (1), pp.439-449. ⟨10.1007/s00253-019-10203-8⟩
Applied Microbiology and Biotechnology 1 (104), 439-449. (2020)

Hydrogen-producing mixed cultures were subjected to a 48-h downward or upward temperature fluctuation from 55 to 35 or 75 °C. Hydrogen production was monitored during the fluctuations and for three consecutive batch cultivations at 55 °C to evaluat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3743c53719a669c4429592b4c77b89c6
https://doi.org/10.1007/s00253-019-10203-8