"Filtration rate" refers to the flow rate per unit area, and is typically expressed in gal/min/ft^2 or ltr/min/m^2. Given that the size of the filter's openings are set by the size of the contaminates to...
Users should be able to comfortably filter enough water in terms of gallons per minute, or liters per minute. Flow rate is a function of the filter's "filtration rate" (typically expressed in gal/min/ft^2 or...
A threaded inlet could allow attaching a portable filter to a squeeze pouch. With that configuration, one could use hand pressure to squeeze dirty water from the pouch through the filter, without requiring...
To enable various modes of use to adapt to the needs of the moment. For example, enabling users to drink directly from the source (such as a lake, or water stream), a bottle, or a glass; or attaching the...
Connecting both ends of each membrane to the filter's outlet (by bending each membrane to form u-shapes) keeps contaminates outside the membrane's core, while allowing clean water to permeate inside through...
Connecting both ends of each membrane to the filter's inlet (by bending each membrane to form u-shapes) enables dirty water to freely enter the core of each membrane tube, while only allowing clean water to...
Each such membrane is a tube with minuscule pores throughout its length. Accordingly, filling a filter with numerous membranes allows increasing the effective surface area of the filter, thus increasing...
Water must be accessible within, or in the immediate vicinity of households, educational institutions, workplaces, health centers, or other premises occupied by people. According to the World Health...
POU devices are typically designed to treat small amounts of water for drinking. They range from systems that attach to a faucet or tap (such as countertop or under the sink devices that may require...
Point-of-entry systems are typically installed at the point where the water line enters a premise (a residence, school, health center, or other), just after the water meter. It treats all water entering the...
Water may be purified or treated at one or many points in the supply line: municipal water purification (or community water treatment), point-of-entry water treatment (typically installed after the water...
