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Sloping Sand Filters for On-Site Wastewater Treatment
This report presents findings from a two-year study examining the hydraulics and treatment performance of sloping sand filters (SSF), or lateral flow sand filters (LFSF), for on-site residential wastewater treatment in Nova Scotia. Eight filters ranged in sand size, slope gradient, filter length and loading rate. Results show that current design loading rates for SSFs in Nova Scotia are conservative and that the system is a reliable, relatively robust treatment methodology. However, additional treatment and disinfection should be utilized for discharge to surface waters or sensitive receiving bodies.
Filtres à sable en pente servant d'installation d'assainissement sur place des eaux usées
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