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1,011 results on '"RABAEY, KORNEEL"'

1. Towards a Unified Framework for Modelling of Bipolar Membrane Electrodialysis for Resource Recovery Processes

Author

Herold, Gaétan, Schneider, Mariane Y., Rabaey, Korneel, Torfs, Elena, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Lu, Xinzheng, Series Editor, Mannina, Giorgio, editor, and Ng, How Yong, editor

Published
2024
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34. Concomitant Leaching and Electrochemical Extraction of Rare Earth Elements from Monazite

Author

Maes, Synthia, Zhuang, Wei-Qin, Rabaey, Korneel, Alvarez-Cohen, Lisa, and Hennebel, Tom

Subjects
Affordable and Clean Energy, Citric Acid, Lanthanum, Metals, Rare Earth, Neodymium, Phosphates, Recycling, Environmental Sciences
Abstract

Rare earth elements (REEs) have become increasingly important in modern day technologies. Unfortunately, their recycling is currently limited, and the conventional technologies for their extraction and purification are exceedingly energy and chemical intensive. New sustainable technologies for REE extraction from both primary and secondary resources would be extremely beneficial. This research investigated a two-stage recovery strategy focused on the recovery of neodymium (Nd) and lanthanum (La) from monazite ore that combines microbially based leaching (using citric acid and spent fungal supernatant) with electrochemical extraction. Pretreating the phosphate-based monazite rock (via roasting) dramatically increased the microbial REE leaching efficiency. Batch experiments demonstrated the effective and continued leaching of REEs by recycled citric acid, with up to 392 mg of Nd L-1 and 281 mg of La L-1 leached during seven consecutive 24 h cycles. Neodymium was further extracted in the catholyte of a three-compartment electrochemical system, with up to 880 mg of Nd L-1 achieved within 4 days (at 40 A m-2). Meanwhile, the radioactive element thorium and counterions phosphate and citrate were separated effectively from the REEs in the anolyte, favoring REE extraction and allowing sustainable reuse of the leaching agent. This study shows a promising technology that is suitable for primary ores and can further be optimized for secondary resources.

Published
2017

42. Reactors for Microbial Electrobiotechnology

Author

Krieg, Thomas, Madjarov, Joana, Rosa, Luis F. M., Enzmann, Franziska, Harnisch, Falk, Holtmann, Dirk, Rabaey, Korneel, Scheper, Thomas, Series Editor, Belkin, Shimshon, Series Editor, Bley, Thomas, Series Editor, Bohlmann, Jörg, Series Editor, Gu, Man Bock, Series Editor, Hu, Wei-Shou, Series Editor, Mattiasson, Bo, Series Editor, Nielsen, Jens, Series Editor, Seitz, Harald, Series Editor, Ulber, Roland, Series Editor, Zeng, An-Ping, Series Editor, Zhong, Jian-Jiang, Series Editor, Zhou, Weichang, Series Editor, Harnisch, Falk, editor, and Holtmann, Dirk, editor

Published
2019
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