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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum

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Nov 21 4:00 PM EST

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Maurice Winn

To: Maurice Winn who wrote (163075)	9/27/2020 12:14:34 PM
From: arun gera	2 Recommendations of 217917

<Hooray for chlorine, ozone, ultraviolet light.> Some amoebae such as cryptosporidium need higher disinfection to achieve inactivation. If Naegleria fowleri has entered groundwater for drinking water supply,then it could escape inactivation as groundwater supplies are not disinfected to the same intensity as surface water supplies. Here is one paper that states that this amoeba can withstand high chlorine dosages in the biofilms in distribution systems. pubs.acs.org Here is another that states that primary disinfection requirements in the drinking water treatment plants are less than those required for cryptosporidium. researchgate.net Since the Milwaukee cryptosporidium outbreak in 1993 en.wikipedia.org, drinking water treatment plants have been advised to optimize disinfection for cryptosporium. Not sure if all have upgraded acordingly. -Arun

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