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Removal of Cryptosporidium during Water Treatment

Price: £150


Ref: 95/DW/06/1
ISBN: 1 84057 015 6

This report describes in detail the work undertaken to identify Cryptosporidium risks associated with water treatment plant operation, and ways of overcoming these risks. Particular areas for investigation are: - + Aspects of rapid gravity filter operation which can influence the risk of Cryptosporidium oocyst breakthrough into the filtered water; + Use of particle size monitors as indicators of filtration performance, compared with turbidimeters; + Effects of recycling of settled backwash water supernatants; + Potential for penetration of oocysts into a slow sand filter bed; + Potential of ozone and UV irradiation as disinfectants for Cryptosporidium; + Potential for microfiltration for control of Cryptosporidium in water treatment; + Use of bacterial spores as surrogates for Cryptosporidium during water treatment.

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