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The Portable Aqua Unit for Lifesaving (short PAUL), also known as Water Backpack is a portable membrane water filter developed at the University of Kassel for humanitarian aid. It allows the decentralized supply of clean water in emergency and disaster situations.
The process of filtering the water takes 20 seconds, allowing for 0.71 litres (1.5 pints) of water to be filtered. [4] Once a filter has reached its limit, it will not allow contaminated water to be drunk. [4] The LiveSaver bottle has been used by soldiers for drinking water as well as cleaning wounds. [2] [3] [4]
These filters are usually small, portable and lightweight (1–2 lb (0.45–0.91 kg) or less). These usually filter water by working a mechanical hand pump, although some use a siphon drip system to force water through, while others are built into water bottles. Dirty water is pumped via a screen-filtered flexible silicon tube through a ...
Portable water purification devices are self-contained, easily transported units used to purify water from untreated sources (such as rivers, lakes, and wells) for drinking purposes. Their main function is to eliminate pathogens , and often also suspended solids and some unpalatable or toxic compounds .
The Concertainer, [1] known colloquially as the Hesco barrier [2] or Hesco bastion, [3] with HESCO being the brand name of the manufacturer, is a modern gabion primarily used for flood control and military fortifications. [4]
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