Electrodialyzers are composed of hundreds to thousands of membrane pairs. Under the action of a DC electric field, the dielectric ions in the water passing through the separator are oriented and moved, because the exchange membrane is selective for ions. The pair of electrodes of the electrodialyser are alternately arranged by a plurality of sets of the negative membrane, the positive membrane and the separator (A and B) to form a concentrated chamber and a light chamber (ie, the cation can penetrate the anode membrane, and the anion can penetrate the membrane The cations in the light in the light chamber migrate to the negative electrode and pass through the positive membrane, and are trapped by the negative membrane in the concentrated chamber; the anions in the water migrate toward the positive electrode and are trapped by the positive membrane in the concentrated chamber, so that the number of ions in the water passing through the light chamber gradually increases. Reduced, become fresh water, and in the water of the concentrated chamber, due to the constant intrusion of the anion and cation of the concentrated chamber, the dielectric ion concentration is continuously increased, and becomes concentrated water, thereby achieving the purpose of desalination, purification, concentration or refining. Hundreds to thousands of pairs of membranes affect the entire resistance, the voltage of the segment, and the effects such as concentration progression. Therefore, this problem should be considered when designing the electrodialyzer.
The above information is provided by Zhangzhou Yudari Water Treatment Technology Co., Ltd. http://
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