Self-cleaning filter DYNAMIK DF
Application
The self-cleaning filter DYNAMIK DF is a pressureless device of constant work cycle adapted to the water and wastewater treatment processes. The device size adjustment as well as kind and quantity of filter bed ensure reduction of suspension, turbidity, colour, as well as iron, manganese compounds, ammonium ions and other normative values. The filter is used also for the final biological wastewater treatment.

Functioning
Raw water/wastewater/ rinsing water are poured into the device through the inlet stub pipe situated in upper part of shell and then directed to the distributors system which distribute the fluid in all the filter surface. The fluid flowing upwards is mechanically cleaned by the filtration bed of grain size and height adjusted for the individual technological systems. The filtrate is transferred outside the device through the controlled overflow duct in the upper device part. The contaminated sediment is gathered in the lower bed section and transferred by the air pump to the air-water wash bath. The patented structure solution of the wash bath ensures high bed cleaning efficiency with minimum cleaning water consumption. The bed cleaning water is taken from the filtrate inside the device – so there is no need of installing any additional washing systems. The contaminated sand is intensively cleaned in the air-water wash bath labyrinth. The rinsing water from the sand are directed outside, while cleaned sand drops to the upper bed layer. As a result, the sand bed is in constant movement down, and the water/wastewater treatment and sand cleaning processes happen simultaneously and constantly without a requirement of being controlled.

Equipment
-The innovative filtered fluid distribution system is equipped in the inspection plugs making possible periodic maintenance without necessity of removing bed from the device.
- The air pump used for contaminated bed transportation.
- Air-water sand wash bath.
- Power supply and control panel.
- Servicing bridge.
- Winter package enabling outdoor installation of the device, system operated through signals from two autonomic thermostats (as an option).
- Material: stainless steel. Other materials may be used on demand.


Product features
- Continuous filtration with constant filtration bed cleaning.
- Highly efficient removal of suspension, turbidity, colour, as well as compounds of iron, manganese, ammonium ions and others, reduction of suspension and BOD5 in the final wastewater treatment process.
- Possibility of nitrification and denitrification in order to remove nitrogen compounds from the wastewater (special version).
- Unique, patented air-water sand wash bath structure.
- Simple structure and easy operation.
- Compatibility with Lamella Separator.
- No need of automatic valves.
- Higher filtration layers.
- Pressureless device – no necessity of UDT (Office of Technical Inspection) control.
- The device used in contact coagulation systems.
- Elimination of “initial filtrate” losses.
- Minimum maintenance costs.
- No loose parts.
- PZH (National Institute of Hygiene) certificate.

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