High-quality suspended particle filtration from a small-footprint filter bed with no moving parts or backwash equipment requirements.
DynaSand® is a continuous upflow vertical sand filter for low-power, low-maintenance filtration of potable water and tertiary treatment of final effluent discharge from sewage and industrial wastewater treatment plants.
DynaSand® delivers high-quality suspended particle filtration from a small footprint filter bed with no moving parts or backwash equipment requirements.
As the water flows upwards through the filter bed to the filtrate outlet, precipitated particles are deposited on the sand grains. Flocculation chemicals may be injected directly into the DynaSand® inlet stream if required. The sand is continuously circulated by an airlift pump and impurities washed from the sand in the separate sand washer, to be discharged for additional treatment or disposal.
DynaSand® handles high concentrations of suspended solids efficiently without requirements for settlement tanks and has a 90% smaller footprint than the equivalent horizontal filter bed.
With the addition of metal salts, DynaSand® can provide phosphorus removals down to 0.1 mg/l whilst also removing effluent BOD and TSS down to 10 mg/l. Read about how DynaSand® has been protecting the lakes of Växjö in Sweden for over 20 years.