The Yellow Quill native community in eastern Saskatchewan suffered from water contaminated with iron, manganese, arsenic, dissolved organic carbon, ammonium and total dissolved solids. Standard water treatment methods were ineffective. Ozonation produced floc which clogged filters quickly.
An integrated biological reverse osmosis system showed high biological activity, even though the water temperature was 6 degrees Celsius. Only a small amount of chemicals were used, and 15-20 times less water was required for backwashing, compared to manganese greensand filtration. The filters are expected to last more than 10 years. The system delivers high quality water at a wide range of water pressure.
Additional information can found at the Safe Drinking Water Foundation 1st INternational Conference The Future of Water Treatment.