Forward Osmosis to Concentrate Lithium from Brine: The Effect of Operating Conditions (pH and Temperature)
The development of battery technology is the driving force behind the increasing demand for lithium, which has resulted in a decreased supply of lithium in the market and continues to be a challenge for the industry. In response to these conditions, the development of lithium recovery technology...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2022-01-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/4371 |
| Summary: | The development of
battery technology is the driving force behind the increasing demand for
lithium, which has resulted in a decreased supply of lithium in the market and
continues to be a challenge for the industry. In response to these conditions,
the development of lithium recovery technology continues, and there is a search
for sources of lithium that are easier to recover. One source of lithium that
has the potential to be processed is geothermal brine using forward osmosis
technology. The aim of this study was to determine the best operating
conditions for forward osmosis as a substitute for conventional evaporation
methods. The parameters to be optimized included pH and operating temperature.
The flow rate in the forward osmosis process was controlled by two litres per
hour (LPH), while the concentration of the draw solution was 6M. The operating
temperature variations used were 40oC, 35oC, and 30oC, while the pH variations used were 7, 6, and 5.
The best results were achieved at a pH of 5 with a temperature of 40oC. Apart from these operating conditions, the
activity model (the Pitzer equation) showed superior results compared to the
simple model (the Van’t Hoff equation), explaining the forward osmosis
phenomenon. |
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| ISSN: | 2086-9614 2087-2100 |