Many technologies are available. An effective system generally requires prefiltration, followed by a sanitizing treatment technology. Options include chemical (e.g., chlorine or ozone), physical (e.g., heat or UV), or biological (e.g., constructed wetlands or slow sand filtration) approaches. Published research on efficacy of different treatment technologies is summarized in our Waterborne Solutions tool. You can compare technologies at the University of Guelph website.
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