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HUBER Drum Screen LIQUID Reliable fine screening with maximum separation efficiency

  • Maximum retention of fibres and hair
  • Operating reliability for membrane bioreactors
  • Maximum COD / BOD5 reduction rates

Mechanical pretreatment is required for both municipal and industrial wastewater in order to remove coarse materials and separate floating, settling and suspended solids.

Depending on the method of wastewater treatment that is applied the mechanical pretreatment system must fulfil different requirements in terms of separation efficiency.

Special plants which operate according to the MBR princi­ple put the highest demands on the mechanical pretreat­ment system as all coarse material needs to be removed.

A cost-efficient solution must not only achieve the requested separation results, it must also provide high throughput capacities combined with maximum operat­ing reliability.

HUBER Drum Screen LIQUID Mesh with stainless steel mesh for highest availability
HUBER Drum Screen LIQUID Mesh with stainless steel mesh for highest availability
HUBER Drum Screen LIQUID Mesh as an economical alternative to primary sedimentation. For best separation efficiency and COD separation performance
HUBER Drum Screen LIQUID Mesh as an economical alternative to primary sedimentation. For best separation efficiency and COD separation performance
Polyurethane sealing in the inlet of the HUBER Drum Screen LIQUID
Polyurethane sealing in the inlet of the HUBER Drum Screen LIQUID
HUBER Drum Screen LIQUID for maximum separation efficiency and COD reduction - load reduction in the preliminary treatment stage and at the same time low pressure losses
HUBER Drum Screen LIQUID Mesh for maximum separation efficiency and COD reduction - load reduction in the preliminary treatment stage and at the same time low pressure losses
Low-maintenance chain drive on the HUBER Drum Screen LIQUID
Low-maintenance chain drive on the HUBER Drum Screen LIQUID
Screenings separated by the HUBER Drum Screen LIQUID mesh: The load to be handled in the biological treatment stage is reduced and more gas can be produced in the digester
Screenings separated by the HUBER Drum Screen LIQUID mesh: The load to be handled in the biological treatment stage is reduced and more gas can be produced in the digester
Installation of a HUBER Drum Screen LIQUID as tank version in open air installation instead of a primary clarifier
Installation of a HUBER Drum Screen LIQUID as tank version in open air installation instead of a primary clarifier
HUBER Drum Screen LIQUID in HUBER production: Diameter 2200 mm and length 4000 mm with fine stainless steel mesh for defraying the biological treatment stage.
HUBER Drum Screen LIQUID in HUBER production: Diameter 2200 mm and length 4000 mm with fine stainless steel mesh for defraying the biological treatment stage.
6 x HUBER Drum Screen LIQUID with fine stainless steel mesh for River and Sea Outfall application.
6 x HUBER Drum Screen LIQUID with fine stainless steel mesh for River and Sea Outfall application.
HUBER Drum Screen LIQUID STAR for protection of plate and hollow fibre membranes. 1 mm folded perforated plate for maximum hydraulic throughputs.
HUBER Drum Screen LIQUID STAR for protection of plate and hollow fibre membranes. 1 mm folded perforated plate for maximum hydraulic throughputs.
HUBER Drum Screen LIQUID Mesh during installation: Integrated service water supply makes external service water for main cleaning obsolete.
HUBER Drum Screen LIQUID Mesh during installation: Integrated service water supply makes external service water for main cleaning obsolete.
HUBER Drum Screen LIQUID pp with 2 mm perforated plate downstream of the coarse screen and grit trap for the protection of downstream plant technology such as aeration of the biology.
HUBER Drum Screen LIQUID pp with 2 mm perforated plate downstream of the coarse screen and grit trap for the protection of downstream plant technology such as aeration of the biology.
HUBER Drum Screen LIQUID Mesh instead of cost- and space-intensive primary sedimentation. Only 1/10 of the space required for primary sedimentation.
HUBER Drum Screen LIQUID Mesh instead of cost- and space-intensive primary sedimentation. Only 1/10 of the space required for primary sedimentation.
HUBER Drum Screen LIQUID Mesh with stainless steel mesh
HUBER Drum Screen LIQUID Mesh with stainless steel mesh
HUBER Drum Screen LIQUID trial machine in a container: 100% self-sufficient solution to determine the reduction effects on the biological treatment stage.
HUBER Drum Screen LIQUID trial machine in a container: 100% self-sufficient solution to determine the reduction effects on the biological treatment stage.
Design sketch: Automatic high pressure cleaning system of the HUBER Drum Screen LIQUID
Design sketch: Automatic high pressure cleaning system of the HUBER Drum Screen LIQUID
CarbonWin® System with HUBER Drum Screen LIQUID: the better primary settlement tank for optimal reduction rates
CarbonWin® System with HUBER Drum Screen LIQUID: the better primary settlement tank for optimal reduction rates
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Design sketch: HUBER Drum Screen LIQUID for channel installation
Design sketch: HUBER Drum Screen LIQUID for channel installation

Design and Function

Design sketch: HUBER Drum Screen LIQUID for channel installation
Design sketch: HUBER Drum Screen LIQUID for channel installation

The characteristic feature of the HUBER Drum Screen LIQUID is its screen basket which is horizontally installed in the channel or in a tank. The wastewater to be treated flows through the basket from inside to outside. Whilst the wastewater flows through the open front into the screen basket, solids are retained within the drum. A special sealing between the channel and the front-end screen basket opening prevents unscreened wastewa­ter from passing through the screen basket.

The solids settling on the drum surface lead to gradual blinding of the surface. As a result, the water level upstream of the screen rises. When the predefined maximum water level has been reached, the screen basket starts to rotate around its axis to clean its surface. At its crown a spray nozzle bar sprays water onto the drum surface from outside to remove the solids and flush them into a trough inside the drum basket from where the screenings are discharged by gravity. The screenings can optionally be pumped to a higher level.

High pressure cleaning

For preventive basket cleaning an innovative automatic high pressure system can be integrated as an option. The spray nozzle head rotates automatically due to the water pressure and moves linearly along the full length of the screen basket to clean the complete basket thoroughly and efficiently. Water demand and operator attendance are reduced to a minimum.

Reliable sealing

Every system is only as good as its sealing system in the inlet of the machine. A special PU sealing is therefore integrated in the HUBER Drum Screen LIQUID to ensure that no unscreened wastewater can pass through the screen and best separation results are met constantly and reliably.

Low-maintenance direct drive

The HUBER Drum Screen LIQUID is equipped with a unique, self-adjusting bearing unit. The drum can therefore be mounted stress-free with automatic angle compensation. The bearings are automatically lubricated for maximum availability.

    Model Variants

    The HUBER Drum Screen LIQUID is available in different designs and suitable for numerous applications of sol­ids-liquid separation.

    Depending on the specific application requirements the horizontal drum is covered with a mesh, wedge wire or perforated plate.

    Drum Screen LIQUID ww
    • HUBER Drum Screen LIQUID with wedge wire drum, wedge wire sizes 0.5 / 1 / 2 / 3 mm.
    • Solids retention with high throughput capacities of up to 10,000 m³/h per machine.
    • Typical applications: Mechanical pretreatment on sewage treatment plants, industrial solids-liquid separation
    Drum Screen LIQUID pp
    • HUBER Drum Screen LIQUID with perforated plate, perfo­rations 1.5 / 1 / 2 / 3 mm.
    • High separation efficiency and retention of fibres and hair.
    • Typical applications for 1 and 2 mm perforation: Protection of hollow-fibre membrane filtration plants
    • Typical applications 3 mm perforation: Protection of plate membrane filtration plants
    Drum Screen LIQUID mesh
    • HUBER Drum Screen LIQUID with mesh, mesh sizes from 0.2 up to 0.75 mm.
    • Maximum separation efficiency and reduction of COD and BOD by up to 40%.
    • Typical applications: Load reduction in the preliminary treatment stage, Replacement for primary settlement tank, Sea and river outfall applications.
    A tailored solution to suit any application:
    • Industrial and municipal applications
    • Primary and secondary treatment stage
    • Protection of membrane plants
    • Replacement for primary settlement tank
    • Load reduction in the biological treatment system through reduction of COD / BOD / AFS
    • Screening in the inlet to power plants
    • Treatment of cooling water circuits
    • Brewery wastewater
    • River and sea outfall
    • Surface and river water screening
    Replacement for Primary Settlement Tanks

    A special application is the use of the HUBER Drum Screen LIQUID as part of the HUBER CarbonWin® System (see separate product brochure). The HUBER CarbonWin® System is the economically better alternative to a conventional primary settlement tank.

    The benefits of the HUBER Drum Screen LIQUID

    • High throughput capacity – maximum separation efficiency
    • Easy maintenance
    • Low operation costs
    • Low life-cycle costs
    • Optional high pressure cleaning reduces maintenance requirements
    • For channel or tank installation
    • Various possible applications
    • Maximum corrosion protection through stainless steel design and acid treatment in a pickling bath

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    Case Studies

    HUBER Solutions in Operation

    HUBER Drum Screen LIQUID Mesh instead of cost- and space-intensive primary sedimentation. Only 1/10 of the space required for primary sedimentation.
    2021-05-17

    Implementation of economically efficient septic tank systems in the range of 10,000 to 20,000 p.e.

    Changing from aerobic to anaerobic sludge stabilisation: More and more municipalities in Germany are striving to...

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    img-casestudy-20-11-liquid-norwegen-01
    2020-11-02 Øygarden, Norway

    HUBER Drum Screen LIQUID - innovative overall process succeeds in Norway

    In Øygarden, one of the most modern wastewater treatment plants in the country was built - with innovative and optimally...

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    img-casestudy-20-07-liquid-01
    2020-07-08

    Busy - the mobile plants with HUBER Drum Screen LIQUID help in planning and operation

    Our demonstration plants with the HUBER Drum Screen LIQUID for the reduction of the pollution load in the inlet to...

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    img-casestudy-18-05-verfahren-03
    2018-03-19 Staßfurt and Spaichingen, Germany

    HUBER supplies a process system as replacement for the primary settling tank

    In 2017, HUBER was successful with its innovative HUBER CarbonWin® system for carbon removal, winning projects in two...

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    img-casestudy-17-06-feinstsiebung-01-en
    2017-06-22

    Carbon removal with HUBER fine screening technology – a success story

    For the process changeover from aerobic to anaerobic sludge stabilisation fine screening systems represent a highly...

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    img-casestudy-2016-10-drumscreen-liquid-01-sketch
    2016-10-19

    New product HUBER Drum Screen LIQUID: Increasing requirements need adapted solutions

    The new HUBER Drum Screen LIQUID is a machine that is available in different designs and suitable for numerous...

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    img-casestudy-okt11-feinstsiebung-mbr-01
    2011-10-25 Gessen, Germany

    Mechanical wastewater pre-treatment for membrane bioreactors

    When membrane technology solutions appeared on the market for the treatment of municipal wastewater, the requirements on...

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