In Sicily wastewater is being regarded as a supplemental source of water, especially for agricultural use, which represents the greatest demand at present and in the future. That is because water demand is already approaching total usable resources, and severe shortage is experienced almost everywhere and in every sector. To help overcome possible implementation problems due to high salinity and pollutant concentrations, lack in monitoring capabilities, and emotional public perception of possible health risks, major field research programs have been undertaken, including an experimental station with a pilot plant and a series of field plots.

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