| 摘要 |
<p>The membrane distillation system comprises a plurality of membrane distillation modules that are pressure-wise coupled in series, such that each subsequent membrane distillation module operates at a lower pressure than a preceding membrane distillation module. At least one of which membrane distillation modules comprises a liquid channel with a fluid entry and a fluid exit and a substantially fluid-impermeable, vapor permeable membrane through which evaporated liquid may pass; a vapor space adjacent to the liquid channel and separated therefrom through the hydrophobic, vapor permeable membrane, through which evaporated liquid may pass into the vapor space, and a vapor channel coupled to a vapor space and comprising a condensation wall and a distillate exit for a distillate generated by means of condensation of evaporated liquid from said vapor space. Said distillate exit in said membrane distillation module is provided with a further fluid-permeable membrane means between said membrane distillation module and a distillate collector unit.</p> |
