This research investigates a capacitive deionization method for salinity reduction in a batch reactor as a new approach for desalination. Reductions of cost and energy compared with conventional desalination methods are the significant advantages of this approach. In this research, experiments were performed with a pair of graphite bipolar electrodes that were coated with a one-gram activated carbon solution. After completing preliminary tests, the impacts of four parameters on electrical conductivity reduction, including (1) the initial concentration of feed solution, (2) the duration of the tests, (3) the applied voltage, and (4) the pH of the solution, were examined. The results show that the maximum efficiency of electrical conductivity reduction in this laboratory-scale reactor is about 55%. Furthermore, the effects of the initial concentration of feed solution are more significant than the other parameters. Thus, using the capacitive deionization method for water desalination with low and moderate salt concentrations (i.e., brackish water) is proposed as an affordable method. Compared with conventional desalination methods, capacitive deionization is not only more efficient but also potentially more environmentally friendly.

这项研究研究了一种用于降低间歇式反应器盐度的电容式去离子方法，这是一种新的脱盐方法。与传统的脱盐方法相比，降低成本和能源是该方法的显着优势。在这项研究中，实验是用一对涂有1克活性炭溶液的石墨双极电极进行的。完成初步测试后，四个参数对电导率降低的影响包括：（1）进料溶液的初始浓度，（2）测试的持续时间，（3）施加的电压和（4）电极的pH解决方案，进行了检查。结果表明，在该实验室规模的反应器中，电导率降低的最大效率约为55％。此外，进料溶液初始浓度的影响比其他参数更显着。因此，提出了使用电容性去离子方法用于具有低和中等盐浓度（即微咸水）的水脱盐作为一种可负担的方法。与传统的脱盐方法相比，电容式去离子不仅效率更高，而且对环境更友好。