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Solids Separation with Screens and Fine Screens

The first step of operationally reliable and efficient wastewater treatment

The separation of solids in wastewater with screens and fine screening systems is the first step in municipal and industrial wastewater treatment.

The main task here is to remove all coarse and foreign materials that could inhibit or hinder the function of subsequent wastewater treatment stages.

The following factors, among others, must be taken into account when planning an operationally reliable solids separation solution:

  • Maximum required hydraulic throughput
  • Expected screenings quantities
  • Required bar spacing or separation capacity for solids
  • Influence of sewer system (surges, deposits, pumping stations, etc.)
  • Redundancy requirements
  • Installation situation (channel, tank)
  • Feeding (by gravity, pump, hoist, ...)

All this information and framework conditions are then taken into account for the choice of the right machine technology and determine the number, size and type of screening systems.

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Parallel installation of three HUBER Multi-Rake Bar Screen RakeMax® at a municipal WWTP
Parallel installation of three HUBER Multi-Rake Bar Screen RakeMax® at a municipal wastewater treatment plant
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Machine Technology

A Wide Range of Screens, Fine Screens and Ultra-Fine Screens for any Application

HUBER has decades of experience in dimensioning and selecting the optimum machine technology for each individual mechanical cleaning application.

As different requirements also demand different screen systems, HUBER has developed a wide range of various screens, fine screens and ultra-fine screens , which are in use in thousands of installations worldwide.

The separated and removed screenings with household waste, fecal matter, toilet paper, and mineral solids are then passed on to the screenings treatment system, which is ideally planned together with the screening plant.

Case Studies

HUBER Solutions in Operation

Twelve 2.6 diameter Ro1 screens in China’s boom town

The HUBER ROTAMAT® family – proven technology for large projects

Multi-Rake Bar Screen 2.0: the HUBER RakeMax® CF, an all-rounder with powerful hydraulics

Two new HUBER Rotary Drum Fine Screens ROTAMAT® Ro2 2600 XL for Salzburg-Siggerwiesen WWTP

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FAQ

Frequently Asked Questions

The size of the opening width on the one hand and the shape of the screening element on the other.

With one-dimensional screening elements such as bars, the separation efficiency is generally lower than with two-dimensional elements such as perforated plates, mesh, etc. This is mainly due to the fact that it is very difficult for long-fibre material such as hair to pass through a perforated plate.

This requirement can only be met by a screen that covers the full range of screen opening widths from fine to coarse screens.

In addition, the screen bars must be designed with the respective geometry to meet the corresponding requirement.

A typical screen that fulfills all these requirements is our HUBER Multi-Rake Bar Screen RakeMax®

Machines with a steep installation angle are best suited for such applications.

This screen installation option allows the installation space to be very compact, especially in the direction of flow.

Typical examples are our HUBER Multi-Rake Bar Screens RakeMax® and RakeMax® CF as well as the HUBER Belt Screen EscaMax®, HUBER Coarse Screen TrashMax® and HUBER Grab Screen TrashLift.

News

Related News

22-03-rakemax-3000-01
03/22/2022

The HUBER Multi-Rake Bar Screen RakeMax® – a success story with more than 3000 installed machines

At HUBER SE, the 3,000th RakeMax® screen has left the factory at the company’s headquarters in Berching. In the course of its almost 20-year success story, the RakeMax® has become the flagship among screening systems.

The HUBER Multi-Rake Bar Screen RakeMax®, firmly established in the market and first presented to the public at the International Trade Fair for Sewage Technology IFAT 2005, has meanwhile proven itself more than three thousand times on the worldwide market of wastewater technology due to its versatile application possibilities.

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If you have any questions, please do not hesitate to contact us!

We welcome your enquiries and want to offer you the best possible support for your projects.

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