Freshwater sources are limited and access to clean water is an acute challenge in recent decades. The sustainable water treatments methods are need of time and water desalination is one of the most interesting technology. Most desalination technologies are required high energy input while Microbial Desalination Cells (MDCs) represent a sustainable option that has added benefit of solving the ever-increasing wastewater treatment and management problem. MDCs are a customized type of Microbial Fuel Cells (MFCs) that depend on the electric potential generated by organic media to decrease salt concentration by electro-dialysis and give an unconventional way of clean water production. In this research, various experiments were conducted to examine the desalination ability of an indigenously designed experimental setup using domestic wastewater inoculated with sewage sludge under identical conditions. The electrochemical properties of the system, comprising the polarization curve and Electrochemical Impedance Spectroscopy (EIS), were examined along with the scope of chemical oxygen demand (COD) exclusion, to distinguish the cell behaviour. Furthermore, acidic water and Phosphate Buffer Solution (PBS) were tested as potential catholytes compared to the performance of the wastewater was gauged at various salt concentrations. The maximum salt removal efficiency was 31%, power density and current density were 32 mW-m⁻² and 246 mA-m⁻² respectively at a salt concentration of 35 g-L⁻¹ that decreases with a decline in salt concentration. The maximum achieved power density and current density were 32 mW-m⁻² and 246 mA-m⁻² respectively. The applied method has huge potential to scaleup for large scale application in coastal regions.

淡水资源有限，获得清洁水是近几十年来的一项严峻挑战。可持续的水处理方法需要时间，而海水淡化是最有趣的技术之一。大多数海水淡化技术都需要高能量输入，而微生物海水淡化池 (MDC) 代表了一种可持续的选择，它具有解决不断增加的废水处理和管理问题的额外好处。MDC 是一种定制类型的微生物燃料电池 (MFC)，它依靠有机介质产生的电势通过电渗析降低盐浓度，并提供一种非常规的清洁水生产方式。在这项研究中，进行了各种实验，以检查本地设计的实验装置的脱盐能力，该装置使用在相同条件下接种污水污泥的生活废水。包括极化曲线和电化学阻抗谱 (EIS) 在内的系统的电化学特性与化学需氧量 (COD) 排除范围一起进行了检查，以区分电池行为。此外，酸性水和磷酸盐缓冲溶液 (PBS) 被测试为潜在的阴极电解液，与在各种盐浓度下测量的废水性能相比。最大除盐效率为31%，功率密度和电流密度为32 mW-m 包括极化曲线和电化学阻抗谱 (EIS)，以及化学需氧量 (COD) 排除范围，以区分细胞行为。此外，酸性水和磷酸盐缓冲溶液 (PBS) 被测试为潜在的阴极电解液，与在各种盐浓度下测量的废水性能相比。最大除盐效率为31%，功率密度和电流密度为32 mW-m 包括极化曲线和电化学阻抗谱 (EIS)，以及化学需氧量 (COD) 排除范围，以区分细胞行为。此外，酸性水和磷酸盐缓冲溶液 (PBS) 被测试为潜在的阴极电解液，与在各种盐浓度下测量的废水性能相比。最大除盐效率为31%，功率密度和电流密度为32 mW-m^-2和 246 mA-m ^-2分别在 35 gL ^-1的盐浓度下随着盐浓度的下降而降低。达到的最大功率密度和电流密度分别为32 mW-m ^-2和246 mA-m ^-2。所应用的方法具有在沿海地区大规模应用的巨大潜力。