A 6-month study was carried out at AMGA's research centre, using a microfiltration pilot plant to treat lake water from the Brugneto dam. Specific tests were carried out to challenge the membrane with respect to its ability to remove high levels of turbidity, E. coli, micro-algae, aluminium and Cryptosporidium oocysts. The microfiltration membrane used in this study was clearly fully able to reject protozoan oocysts at a level not easily obtainable using conventional treatment technologies, as well as faecal indicator bacteria.

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