User:FahnbullehV/sandbox

Water filter media and systems of granulated ceramics

The need for point-of-use water treatment in the developing world for rural areas is obvious. In urban areas the situation differs, where the delivery infrastructure from municipal treatment tends to be damaged or non-existent. Since the 1970s nanoscale silver has been used as the active antimicrobial ingredient in drinking water purification systems.

The action that insures pathogen reduction through contact with the silver is the Oligodynamic Effect, ‘biocidal effect of metals, especially heavy metals, that occurs even in low concentrations. For silver coated ceramic filters, a distinct advantage of using granulated ceramic filters rather than monolothic filters, e.g., candle filters or filter pots, is that a filter of any size can be fabricated, according to the size of the community.