A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity.
We constructed electrostatic shielding zones made of electrode graphite powder and used them as a new type of ionic and electronic current sinks. Because of the local elimination of the applied electric field, voltage and current within the current sinks, ions are led inside them and accumulate ther...
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| Format: | Article |
| Language: | English |
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Eastern Macedonia and Thrace Institute of Technology
2009-01-01
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| Series: | Journal of Engineering Science and Technology Review |
| Subjects: | |
| Online Access: | http://www.jestr.org/downloads/volume2/fulltext709.pdf |
| _version_ | 1818026157293961216 |
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| author | A. Dermentzi A. Christoforidis D. Papadopoulou K. Dermentzis |
| author_facet | A. Dermentzi A. Christoforidis D. Papadopoulou K. Dermentzis |
| author_sort | A. Dermentzi |
| collection | DOAJ |
| description | We constructed electrostatic shielding zones made of electrode graphite powder and used them as a new type of ionic and electronic current sinks. Because of the local elimination of the applied electric field, voltage and current within the current sinks, ions are led inside them and accumulate there. The sinks become ion concentrating compartments whereas the adjacent compartments become ion depleting compartments. The proposed electrodeionization process uses no permselective ion exchange membranes. We implemented it in electrodialysis desalination of a synthetic brackish 0.03 M NaCl solution and obtained potable water with a NaCl concentration <500 mg L-1. Furthermore, we performed electrodialysis of 0.002 M NiSO4 and electrodeionization of 0.001 M NiSO4 solutions with simultaneous electrochemical regeneration of the used ion exchange resin beds. By the continuous mode of electrodeionization of the 0.001 M NiSO4 solution we obtained pure water with a Ni2+ ion concentration of less than 0.5 mg L-1 at a flow rate of 2.3 x10-4 L s-1 diluate stream |
| first_indexed | 2024-12-10T04:27:32Z |
| format | Article |
| id | doaj.art-ade6b294127743109681dbcae03041c8 |
| institution | Directory Open Access Journal |
| issn | 1791-2377 |
| language | English |
| last_indexed | 2024-12-10T04:27:32Z |
| publishDate | 2009-01-01 |
| publisher | Eastern Macedonia and Thrace Institute of Technology |
| record_format | Article |
| series | Journal of Engineering Science and Technology Review |
| spelling | doaj.art-ade6b294127743109681dbcae03041c82022-12-22T02:02:15ZengEastern Macedonia and Thrace Institute of TechnologyJournal of Engineering Science and Technology Review1791-23772009-01-01213342A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity.A. DermentziA. ChristoforidisD. PapadopoulouK. DermentzisWe constructed electrostatic shielding zones made of electrode graphite powder and used them as a new type of ionic and electronic current sinks. Because of the local elimination of the applied electric field, voltage and current within the current sinks, ions are led inside them and accumulate there. The sinks become ion concentrating compartments whereas the adjacent compartments become ion depleting compartments. The proposed electrodeionization process uses no permselective ion exchange membranes. We implemented it in electrodialysis desalination of a synthetic brackish 0.03 M NaCl solution and obtained potable water with a NaCl concentration <500 mg L-1. Furthermore, we performed electrodialysis of 0.002 M NiSO4 and electrodeionization of 0.001 M NiSO4 solutions with simultaneous electrochemical regeneration of the used ion exchange resin beds. By the continuous mode of electrodeionization of the 0.001 M NiSO4 solution we obtained pure water with a Ni2+ ion concentration of less than 0.5 mg L-1 at a flow rate of 2.3 x10-4 L s-1 diluate streamhttp://www.jestr.org/downloads/volume2/fulltext709.pdfDesalinationnickel removalmembrane-less electrodialysisfaraday cagewater reuse |
| spellingShingle | A. Dermentzi A. Christoforidis D. Papadopoulou K. Dermentzis A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity. Journal of Engineering Science and Technology Review Desalination nickel removal membrane-less electrodialysis faraday cage water reuse |
| title | A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity. |
| title_full | A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity. |
| title_fullStr | A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity. |
| title_full_unstemmed | A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity. |
| title_short | A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks. Study of optical sensors of the form Al/a-SiC:H/c-Si(n) with high sensitivity. |
| title_sort | new process for desalination and electrodeionization of water by means of electrostatic shielding zones ionic current sinks study of optical sensors of the form al a sic h c si n with high sensitivity |
| topic | Desalination nickel removal membrane-less electrodialysis faraday cage water reuse |
| url | http://www.jestr.org/downloads/volume2/fulltext709.pdf |
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