True Water

Disinfection Solutions

DynaDisc Filter

Consisting of multiple rotating filter discs, the DynaDisc filter features a well proven system that uses fine woven filter media.

DynaDisc
DynaDisc

This sophisticated design produces a highly effective filtration process that can achieve high filtration efficiencies.


From raw water screening to wastewater polishing, each DynaDisc filter delivers superior filtration performance for water, wastewater and water re-use applications.


The Nordic Water DynaDisc filter is available as a freestanding unit with filter discs contained in a stainless steel tank and a version for installation in a concrete tank. The two versions have the same design regarding drive system, backwash system, level tank, disc cassettes, etc. The effective filter area can be up to 197 m2 per filter. Water to be filtered is guided into the rotor drum and flows by gravity into the filter discs through openings in the drum, and passes through the filter media on the sides of the discs. Suspended solids are separated and accumulated on the inside of the filter cloth.

When the water level inside the filter rotor increases to a pre-set point, the filter rotor starts rotating and the backwash of the filter media starts. The high pressure backwash spray removes the accumulated suspended solids into the reject flume inside the filter. The suspended solids are then discharged via the reject pipe. The discs are submerged to approximately 60% and the water level of the filtrate is kept by a level tank