The main objective of this work was to investigate the removal of boron from processed geothermal waters (i.e., after energy production) in lab-scale tests using ceramic ultrafiltration membranes. The impacts of membrane operating pressure, feed water pH and temperature and membrane pore size on boron rejections were determined. Three different single-channel tubular ceramic membrane modules with average pore sizes of 4 nm, 10 nm and 1 kD were tested. Fine-UF ceramic membrane with 4 nm pore size provided higher boron and salt rejections than the other two tested membranes. Increasing pH from 8.8 to 10.5 did not enhance boron rejections. Operating pressure around 8 bar was found to be optimum in terms of flux values and boron and salt rejections for the 4 nm pore-sized membrane. The results indicated that ceramic ultrafiltration membranes can only partially (around 25-30%) remove boron from geothermal waters. Once much lower pore-sized nanofiltration or brackish water reverse osmosis type ceramic membranes are available, they may be used for the desalination of processed geothermal waters since ceramic membranes are resistant to extreme conditions. Ceramic fine-UF membranes can also be used as a pre-treatment stage prior to polymeric brackish water reverse osmosis processes in desalination of geothermal waters.
Published in | International Journal of Environmental Protection and Policy (Volume 2, Issue 5) |
DOI | 10.11648/j.ijepp.20140205.18 |
Page(s) | 190-194 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2014. Published by Science Publishing Group |
Boron, Ceramic Membrane, Desalination, Geothermal Water, Reuse
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APA Style
Bilgehan Ilker Harman, Hasan Koseoglu, Nevzat Ozgu Yigit, Nalan Kabay, Asuman Akyuz, et al. (2014). Ceramic Membranes in Removing Boron from Processed Geothermal Waters. International Journal of Environmental Protection and Policy, 2(5), 190-194. https://doi.org/10.11648/j.ijepp.20140205.18
ACS Style
Bilgehan Ilker Harman; Hasan Koseoglu; Nevzat Ozgu Yigit; Nalan Kabay; Asuman Akyuz, et al. Ceramic Membranes in Removing Boron from Processed Geothermal Waters. Int. J. Environ. Prot. Policy 2014, 2(5), 190-194. doi: 10.11648/j.ijepp.20140205.18
AMA Style
Bilgehan Ilker Harman, Hasan Koseoglu, Nevzat Ozgu Yigit, Nalan Kabay, Asuman Akyuz, et al. Ceramic Membranes in Removing Boron from Processed Geothermal Waters. Int J Environ Prot Policy. 2014;2(5):190-194. doi: 10.11648/j.ijepp.20140205.18
@article{10.11648/j.ijepp.20140205.18, author = {Bilgehan Ilker Harman and Hasan Koseoglu and Nevzat Ozgu Yigit and Nalan Kabay and Asuman Akyuz and Mehmet Kitis}, title = {Ceramic Membranes in Removing Boron from Processed Geothermal Waters}, journal = {International Journal of Environmental Protection and Policy}, volume = {2}, number = {5}, pages = {190-194}, doi = {10.11648/j.ijepp.20140205.18}, url = {https://doi.org/10.11648/j.ijepp.20140205.18}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepp.20140205.18}, abstract = {The main objective of this work was to investigate the removal of boron from processed geothermal waters (i.e., after energy production) in lab-scale tests using ceramic ultrafiltration membranes. The impacts of membrane operating pressure, feed water pH and temperature and membrane pore size on boron rejections were determined. Three different single-channel tubular ceramic membrane modules with average pore sizes of 4 nm, 10 nm and 1 kD were tested. Fine-UF ceramic membrane with 4 nm pore size provided higher boron and salt rejections than the other two tested membranes. Increasing pH from 8.8 to 10.5 did not enhance boron rejections. Operating pressure around 8 bar was found to be optimum in terms of flux values and boron and salt rejections for the 4 nm pore-sized membrane. The results indicated that ceramic ultrafiltration membranes can only partially (around 25-30%) remove boron from geothermal waters. Once much lower pore-sized nanofiltration or brackish water reverse osmosis type ceramic membranes are available, they may be used for the desalination of processed geothermal waters since ceramic membranes are resistant to extreme conditions. Ceramic fine-UF membranes can also be used as a pre-treatment stage prior to polymeric brackish water reverse osmosis processes in desalination of geothermal waters.}, year = {2014} }
TY - JOUR T1 - Ceramic Membranes in Removing Boron from Processed Geothermal Waters AU - Bilgehan Ilker Harman AU - Hasan Koseoglu AU - Nevzat Ozgu Yigit AU - Nalan Kabay AU - Asuman Akyuz AU - Mehmet Kitis Y1 - 2014/10/20 PY - 2014 N1 - https://doi.org/10.11648/j.ijepp.20140205.18 DO - 10.11648/j.ijepp.20140205.18 T2 - International Journal of Environmental Protection and Policy JF - International Journal of Environmental Protection and Policy JO - International Journal of Environmental Protection and Policy SP - 190 EP - 194 PB - Science Publishing Group SN - 2330-7536 UR - https://doi.org/10.11648/j.ijepp.20140205.18 AB - The main objective of this work was to investigate the removal of boron from processed geothermal waters (i.e., after energy production) in lab-scale tests using ceramic ultrafiltration membranes. The impacts of membrane operating pressure, feed water pH and temperature and membrane pore size on boron rejections were determined. Three different single-channel tubular ceramic membrane modules with average pore sizes of 4 nm, 10 nm and 1 kD were tested. Fine-UF ceramic membrane with 4 nm pore size provided higher boron and salt rejections than the other two tested membranes. Increasing pH from 8.8 to 10.5 did not enhance boron rejections. Operating pressure around 8 bar was found to be optimum in terms of flux values and boron and salt rejections for the 4 nm pore-sized membrane. The results indicated that ceramic ultrafiltration membranes can only partially (around 25-30%) remove boron from geothermal waters. Once much lower pore-sized nanofiltration or brackish water reverse osmosis type ceramic membranes are available, they may be used for the desalination of processed geothermal waters since ceramic membranes are resistant to extreme conditions. Ceramic fine-UF membranes can also be used as a pre-treatment stage prior to polymeric brackish water reverse osmosis processes in desalination of geothermal waters. VL - 2 IS - 5 ER -