| 摘要 |
<p>There is disclosed a hydration bag for providing potable or even sterile water from contaminated water sources. Specifically, there is disclosed two embodiments of a passive membrane osmotic device. The first embodiment has an interior space sealed with one or two membrane walls, having an osmotic agent formulation within the interior space, and having direct osmotic concentration properties. The second embodiment has a sealable nutrient/osmotic agent chamber with a spiral wound membrane wrapped around the nutrient/osmotic agent chamber to form the membrane element, wherein the membrane element is located within a sealable dirty water compartment or within a dirty water source and wherein the membrane element communicates with a clean water compartment. More specifically, the osmotic agent or nutrient can be a partially dehydrated food source, a sugar, a medicine, or combinations thereof.</p> |
