Owing to the high specific energy consumption of conventional seawater desalination methods available hitherto, there is much motivation for designing greener desalination processes. As a greener desalination process, it should consume lower top-brine temperatures for the seawater feed as well as minimum chemical use for brine treatment. In this paper, a direct-contact spray-assisted evaporation and condensation (DCSEC) is presented that addresses the above-mentioned requirements of greener desalination. We have tested both the single-stage and multi-stage configurations of DCSEC process with seawater (3.5% by weight salinity) from Red Sea. The performance of the system was investigated for a feed flow rate of 6 L/minute when the evaporator chamber temperature was varied from 38 °C to 60 °C. From the experiments, maximum distillate production of 31 L/hr m³ was recorded at 60 °C feed temperature for a single-stage configuration. To further enhance the distillate production of DCSEC, an innovative micro/nano-bubbles (M/NBs) generator device is incorporated in the feed supply system which resulted in 34% increase in potable water production at the corresponding inlet feed temperatures.

由于迄今为止可获得的常规海水淡化方法的高比能耗，因此有很多动机来设计更绿色的淡化方法。作为一种更环保的脱盐工艺，海水进料应消耗较低的上盐水温度，并且盐水处理的化学药品用量最少。在本文中，提出了一种直接接触式喷雾辅助蒸发和冷凝（DCSEC），解决了上述绿色脱盐的要求。我们已经用来自红海的海水（盐分含量为3.5％）对DCSEC工艺的单阶段和多阶段配置进行了测试。当蒸发室温度从38°C变为60°C时，以6 L / min的进料流量研究了系统的性能。从实验来看对于单级配置，在60°C进料温度下记录了³。为了进一步提高DCSEC的馏出物产量，在进料供应系统中采用了创新的微/纳米气泡（M / NBs）发生器装置，在相应的进料温度下，饮用水的产量增加了34％。