Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/12756
Title: | Novel hybrid adsorption-electrodialysis (AdED) system for removal of boron from geothermal brine | Authors: | Altınbaş, Bekir Fırat Orak, Ceren Ökten, Hatice Eser Yüksel, Aslı |
Keywords: | Boron Geothermal brine Adsorption |
Publisher: | American Chemical Society | Abstract: | A novel hybrid adsorption-electrodialysis (AdED) system to remove environmentally harmful boron from geothermal brine was designed and effective operating parameters such as pH, voltage, and flow rate were studied. A cellulose-based adsorbent was synthesized from glycidyl methacrylate (GMA) grafted cellulose and modified with a boron selective n-methyl-d-glucamine (NMDG) group and characterized with SEM-EDX, FT-IR, and TGA analyses. Batch adsorption studies revealed that cellulose-based adsorbent showed a remarkable boron removal capacity (19.29 mg/g), a wide stable operating pH range (2-10), and an adsorption process that followed the Freundlich isotherm (R2= 0.95) and pseudo-second-order kinetics (R2= 0.99). In the hybrid AdED system, the optimum operating parameters for boron removal were found to be a pH of 10, a voltage of 10 V, a flow rate of 100 mL/min, and an adsorbent dosage of 4 g/L. The presence of the adsorbent in the hybrid system increased boron removal from real geothermal brine (containing 199 ppm boron) from 7.2% to 73.3%. The results indicate that the designed AdED system performs better than bare electrodialysis for boron removal from ion-rich real geothermal brine while utilizing environmentally friendly cellulose-based adsorbent. | Description: | This study was financially supported through the project The Scientific and Technological Research Council of Turkey-TUBITAK (Project No. 119N310). | URI: | https://doi.org/10.1021/acsomega.2c06046 https://hdl.handle.net/11147/12756 |
ISSN: | 2470-1343 |
Appears in Collections: | Chemical Engineering / Kimya Mühendisliği Environmental Engineering / Çevre Mühendisliği PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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File | Description | Size | Format | |
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acsomega.2c06046.pdf | Article File | 6.11 MB | Adobe PDF | View/Open |
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