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  Effects of Voltage and Number of Cell on Desalination of Brackish Water using Electrodialysis Method (Poster)  
Diupload oleh : Arseto Yekti Bagastyo, S.T., M.T.
Pengarang : Alfan Purnomo, Zakiatul Mirfada, Arseto Yekti Bagastyo
Tahun : 2014
Dipublikasikan di : Proceeding, The 9th Joint Conference on Chemistry, 12-13 November 2014, Semarang, Indonesia
Jenis Jurnal : International Conference
Eksternal Link : http://https://drive.google.com/file/d/0B_slE-O-UruMMTRqUXlzektfY1k/view
Bidang Penelitian : Electrodialysis
Abstrak : Brackish water is an alternative source of raw water in the coastal areas. One alternative method of brackish water treatments is electrodialysis (ED) which involves preferential transport of ions through ion exchange membranes with an electrical current as the driving force. This research aims is to analyze the effect of applied voltage and number of cell to desalinate high concentration of total dissolved solid (TDS) in brackish water. The ED reactor was operated for 72 hours with the applied voltages of 6V, 9V and 12V, and the cell number of 5 and 7 cells. Membrane effective area was 100 cm2 for each cell, while the electrode area is 25 cm2 each. The results showed that contact time of brackish water (TDS = 2.000 mg/L) in reactors affected the quality of water produced. The highest TDS removal efficiency in the 5 cell experiment was obtained by applying 6V, i.e., 61%. This equals to the salinity removal of 71% with final pH of 7.7. Similarly, The 6V experiment showed the highest TDS removal efficiency in the 7 cell experiment, i.e., 92%, (equals to 79% of salinity removal, with a final pH of 8.0. Therefore, it can be concluded that the 7 cells ED reactor is more effective to desalinate the brackish water with the energy consumption of 140 kWh/m‾, lower than in the case of the 5 cell reactor, 127 kWh/m‾. Further research is required to evaluate the membrane lifetime.
File : [ COMPRESSED.PDF ]
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