Patent
Portable water purification system
TLDR
An apparatus for purifying drinking water by a combination of reverses osmosis, deionization by ion exchange resins, resin and final passage through activated carbon is described in this article.Abstract:
An apparatus for purifying drinking water by a combination of reverses osmosis, deionization by ion exchange resins, resin and final passage through activated carbon. The components for reverse osmosis, de-ionization, and passage through active carbon, and a product water reservoir are housed in a cabinet suitable for placement in a home. Ionic impurities are removed by reverse osmosis through a cellulose acetate membrane which feeds the flux water to a mixed resin bed for deionization. Waste brine is removed from the reverse osmosis module by controlled leakage to maintain concentration at a low level. The product water is filtered through a cartridge of granular activated carbon prior to being stored in a product water reservoir. An attachment is connectable with the tap water faucet to provide tap water to the unit at main water supply pressure and to dispose of waste brine water and excess product water. Components are replaceable and available on the market.read more
Citations
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Water treatment compositions
TL;DR: In this article, the authors present methods and kits for purifying and clarifying and/or nutrifying contaminated drinking water and which comprise a primary coagulant material, a microbiocidal disinfectant and an oxidant system.
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TL;DR: A water purifying system including two or more stages for removing organic and inorganic contaminants from source water is described in this paper, where the system may be configured such that water is first passed through a biocidal resin, and then through a granular metal alloy and an activated carbon filter to remove iodides.
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References
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Patent
Ultra pure water process and apparatus
Terry Lee Faylor,Roger W Martin +1 more
TL;DR: In this article, deionized pretreated supply water is stored in a storage unit, and a part of the stored water is recirculated through a pure water recirculation loop.
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Method of producing ultrapure, pyrogen-free water
TL;DR: In this paper, a method of producing ultrapore, pyrogen-free water comprising providing a source of water, filtering the water to remove suspended solids and organics, deionizing the water, and introducing substantially pure ozone into the deionized water at a concentration of at least two milligrams of ozone per liter of deionised water to thereby produce ultrapure pyrogen free water was proposed.
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Apparatus for emergency water purification
TL;DR: In this article, a method and apparatus for the purification of water in emergency situations is provided, comprising a manually operated pump having a discharge port connected to a plurality of series-connected treatment filters.