Chamber filter press for purification (filtration) of residual/wash water with bindable fine particles (cement).

Residual water and wash water can be purified with the following systems. Here, the fine particles in the residual and wash water are removed, so that purified water is available after the process. With all processes, the residual or wash water is supplied to the respective systems either directly or from an agitator tank. The pH value can also be reduced from 11 to 13 by further treatment of the purified water.
Using a chamber filter press, residual/wash water can be filtered down to a few μm The press consists of several filter plates arranged in a row. The plates are enclosed by a filter cloth that retains the coarse particles. During the operation of the press, the filter plates are compressed under high pressure, and the residual/wash water flows between the plates from the inside out. Here, the fine particles contained are separated. A filter cake forms.

Once the chambers are completely filled with filter cake, the cake is removed. The filtered water is collected and flows into a buffer tank.
The resulting filter cake is either disposed of or reused (e.g. as filling material for road construction). The purified water collected in the buffer tank can be reused in the production cycle.

The technical advantages of the chamber filter press at a glance

  • Purification of residual/wash water with fine particles (cement) that have binding properties
  • Purification of coloured water
  • The water content in the filter cake is only approx. 25 % (watertight)
  • Simple handling of the filter cake
  • Little space required, high filtration performance of the system
  • Low assembly costs
  • Low operating and maintenance costs

The economic advantages of the chamber filter press at a glance

  • Reduction of water costs by reusing the filtered water
  • for the production of concrete
  • for surface treatment (e.g. concrete blocks, paving stones)
  • for cleaning mixers, bucket conveyors
  • Avoidance of wastewater charges and waste disposal costs 

Treatment tower to purify residual/wash water with fine particles (cement) that have binding properties.
The treatment tower consists of two concentric tubes and separates sedimentable fine particles from liquids. For this purpose, the residual/wash water is fed into the inner tube of the treatment tower. The fine particles settle and gather in the sludge funnel at the bottom. The purified water flows into a buffer tank via a spillway. The built-in rabble rake prevents the fine particles from sticking to the sludge funnel. From there, the collected concrete sludge is either returned to the production cycle or disposed of. Alternatively, the sludge can also be fed to a chamber filter press for dewatering. The purified water collected in the buffer tank can also be reused in the production cycle.

The technical advantages of the treatment tower at a glance

  • Purification of residual/wash water with fine particles (cement) that have binding properties
  • Purification of coloured water
  • Little space required, high purification performance of the system
  • Low assembly costs
  • Low operating and maintenance costs
  • Few moving parts
  • Adding a flocculant allows for the clarification performance to be increased

The economic advantages of the treatment tower at a glance

  • Reduction of water costs by reusing the purified water
  • for the production of concrete
  • for surface treatment (e.g. concrete blocks, paving stones)
  • for cleaning mixers, bucket conveyors
  • Avoidance of wastewater charges and waste disposal costs

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WP 20170614 012c