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The functioning of our filters

The HIGHFIL complete systems HF25, HF50 and HF100 consist of various components for water treatment: a pre-chamber (HF50 and HF100), a filter chamber with endless belt (mechanical cleaning) and a bio-chamber (biological cleaning).

The possible circulation rates are 25,000 litres / hour (HF25), 50,000 litres / hour (HF50) or 100,000 litres / hour (HF100). The flow through the filter system can be “pumped” (installation above the pond level) or gravity (installation below the pond level). In addition, you can choose between cornered [EB] and round [RB] versions of the bio chambers (HF25 only cornered [EB]).

The self-cleaning endless belt filter: the centrepiece of the complete system

All HIGHFIL filter systems feature a high-porous belt filter made of stainless steel wire mesh with a grade of filtration of 48 μm. The fabric structure of the belt filter provides for a high dirt pick-up, best regenerability, low flow resistance and a high flow rate of 11 litres per minute and 1 cm2 (measured at dp = 0.20 bar).

The belt filter is self-cleaning thanks to a special flushing system. The dirt from the (pond) water settles on the belt filter surface and forms a filter cake. The water level can rise to a maximum of 28 cm in the filter chamber. A level probe activates the rinse pump and the drive motor moves the belt filter a little further. The rinsed dirt proceeds from the belt filter into the outflow dirt pan, which can be connected to the sewage system.

FULLY TAILORED TO YOUR NEEDS – PUMPED OR GRAVITY BASED OPERATION

  1. 2 or 4 inlet pipes (depending on the system)
  2. Filter chamber
  3. Bio-chamber
  4. Pre-chamber
  5. Dirt outlet DN100
  6. 1 -2 outlet spigots DN150 (depending on the system)

The pumped based operation variant

The dirt polluted pond water is pumped via two (HF50B) or four inlet pipes (HF100B) into the pre-chamber, where optional UV clarification can take place. The water calms down here and flows laminar through the oval milled-out portion into the filter chamber. The dirt particles settle on the belt filter and form the so-called filter cake. This is used as an additional fine filter.

The filter cake grows in size in the course of the filtration, whereby the water level in the filter chamber rises and actuates the contact pins.

The control in the switch cabinet sets the rinsing pump and the drive motor with the belt filter in motion. The dirt particles are rinsed out of the sieve into the dirt drain pan and discharged into the sewer system.

The mechanically purified water trickles down into the underlying bio-chamber and is thereby concomitantly enriched with oxygen.

The biological treatment of the water takes place in the bio-chamber, which is filled with bio-medium. The purified water flows back to the pond with the help of the principle of gravity.

The two pumped models are each available for delivery with cornered and round bio-chambers: HF50BEB, HF50BRB, HF100BEB, HF100BRB

The gravity based operation variant

  1. 1 or 2 inlet pipes (depending on the system)
  2. Filter chamber
  3. Bio-chamber
  4. Pre-chamber
  5. Dirt outlet DN100
  6. 1 -2 outlet spigots DN150 (depending on the system)

In the case of the gravity based operation variant, the dirt polluted pond water is directed via one (HF50S) or two inlet pipes (HF100S) with the help of the principle of gravity into the pre-chamber, where optional UV clarification can take place.

The water calms down here and flows laminar through the oval milled-out portion into the filter chamber. The dirt particles settle on the belt filter and form the so-called filter cake. This is used as an additional fine filter. The filter cake grows in size in the course of the filtration, whereby the water level in the filter chamber rises and actuates the contact pins.

The control in the switch cabinet sets the rinsing pump and the drive motor with the belt filter in motion. The dirt particles are rinsed out of the sieve into the dirt drain pan and discharged into the sewer system.

The mechanically purified water trickles down into the underlying bio-chamber and is thereby concomitantly enriched with oxygen.

The biological treatment of the water takes place in the bio-chamber, which is filled with bio-medium. The purified water is sucked up from the perforated sheet cage, which is mounted under the pre-chamber, by the return pump and led into the pond.

The two gravity based operation models are each available for delivery with cornered and round bio-chambers: HF50SEB, HF50SRB, HF100SEB, HF100SRB