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Hi Allan
In terms of survival kit type portable solutions, as well as the ceramic filters that Martin and Krystof mention, the following UF membrane filters will disinfect. In oder of increasing size:
- https://www.vestergaard.com/lifestraw-personal
- https://www.lifesaverusa.com/products/lifesaver-bottle.htm
- https://www.vestergaard.com/lifestraw-family-2-0
- https://www.lifesaverusa.com/products/lifesaver-jerrycan.htm
However if minerals are a real issue desalination may be required. Survival kit RO systems do exist, but tend to be much more expensive. In order of increasing size:
- https://www.katadyn.com/usen/katadyn-products/products/katadynshopconnect/katadyn-entsalzer-manuelle-survivors/katadyn-survivor-06/
- https://www.spectrawatermakers.com/products/aquifer-expedition-150-200T.html
- https://www.genesismembrane.com/hand-operated-ro-plants.html
Kind regards
Martin