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Sludge Screening

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Efficient and reliable removal of coarse material from sludge

For the operational safety of sludge treatment processes, it is advantageous if the sludge is as free as possible of coarse material and disturbing solids (e.g. paper, plastics, fibres and hair). Otherwise, repeated malfunctions of aggregates and processes may occur in pumps, but also during thickening, dewatering or drying, and these can be time-consuming and costly to rectify and require increased manpower.

For the agricultural recycling practised in many regions of the world, it also makes sense to separate all solids such as plastic parts for reasons of environmental protection and aesthetics.

Depending on the application, HUBER has different machines for sludge screening in its product range so that the right machine and technology is available for every application, every installation situation and any throughput rate.

HUBER sludge screening machines
Sludge screening removes coarse and impurities and increases the operational reliability - here HUBER Coarse Material Separator STRAINPRESS®
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Case Studies

HUBER Solutions in Operation

HUBER supplies machines for faecal sludge treatment on the Faroe Islands

HUBER Sludgecleaner STRAINPRESS® to ensure energy yield from digester gas plants

From screen building to sewage sludge drying: complete modernisation of the La Crosse wastewater treatment plant with HUBER

HUBER STRAINPRESS® Placed in the Most Impressive City in Italy: Rome

A HUBER Technology Wastewater Case Study at Cannock STW for Severn Trent Water

HUBER Technology Sludge Screening case study at Huddersfield STC

Digestate Screening for Plastics Removal

New size of the inline sludge screening system sets new standards for throughput capacity

Improvement to the digestion process for one of the largest inland sewage treatment works in the UK

Innovative Approach on the HUBER STRAINPRESS®

Operationally reliable biogas production with the HUBER Sludgecleaner STRAINPRESS®

STRAINPRESS® for sludge screening at Amsterdam: 3 years of successful operation

Future-oriented technology for the treatment of faecal sludge on the Faroe Islands - a reference in the midst of impressive surroundings.
HUBER supplies machines for faecal sludge treatment on the Faroe Islands

Future-oriented technology for the treatment of faecal sludge on the Faroe Islands: a reference in the midst of impressive surroundings: At least 10,000 t of sludge were to be received annually, screened and then dewatered to ≥ 35 % dry residue (DR).

Screenings dewatered by the HUBER Sludgecleaner STRAINPRESS® from out-of-date food, packaging residues and plastics.
HUBER Sludgecleaner STRAINPRESS® to ensure energy yield from digester gas plants

In order to sustainably improve the digestion process or gas production through co-substrates, as well as to protect mixing and conveying units and the downstream sludge dewatering system, foreign materials contained in the substrate must be removed and coarse solids must be broken up.

From screen building to sewage sludge drying: complete modernisation of the La Crosse wastewater treatment plant with HUBER

HUBER Technology Inc., the Denver, North Carolina-based subsidiary of HUBER SE, was awarded the contract for the modernisation of the La Crosse wastewater treatment plant located on Isle La Plume. The scope of supply includes a HUBER Multi-Rake Bar Screen RakeMax® CF in the screen building in the inlet to the WWTP, a HUBER Belt Dryer BT 18 for sewage sludge drying, and a HUBER Sludgecleaner STRAINPRESS® for primary sludge screening. The total investment volume of the modernisation package amounts to about 60 million US dollars.

Series of STRAINPRESS® Sludge Screens installed at the East Rome WWTP.
HUBER STRAINPRESS® Placed in the Most Impressive City in Italy: Rome

Seven HUBER Sludgecleaner STRAINPRESS® units for improved wastewater treatment for 3.5 million inhabitants: HUBER to renew sludge screening at all three major WWTPs in Rome

Cannock STW installation with HUBER Sludgecleaner STRAINPRESS®
A HUBER Technology Wastewater Case Study at Cannock STW for Severn Trent Water

HUBER Technology recently completed a project for Severn Trent Water at Cannock STW, north of Birmingham. HUBER Technology were engaged on the project in 2018 with the project being installed in late 2019 and commissioned in 2020.

HUBER Technology Sludge Screening case study at Huddersfield STC

Yorkshire Water’s  new facility at Huddersfield, will convert all its waste into renewable energy through a process known as anaerobic digestion and by 2020, 100% of their sludge will be digested.

Example food waste
Digestate Screening for Plastics Removal

Digestate is able to play an important role in soil replenishment, but can require some processing before use as an alternative to mineral fertilisers.

Schematic drawing of the HUBER Sludgecleaner STRAINPRESS®
New size of the inline sludge screening system sets new standards for throughput capacity

With nearly 1000 produced machines, the HUBER Sludgecleaner STRAINPRESS® 290 is one of the most proven HUBER products

Improvement to the digestion process for one of the largest inland sewage treatment works in the UK

HUBER Technology recently completed a project at one of the largest inland sewage treatment works in the UK, Minworth STW. Minworth serves a population equivalent of 1.75 million from Birmingham with full flow to treatment of 1,070Ml/d.

Innovative Approach on the HUBER STRAINPRESS®

As the original designer and manufacturer of the world recognised and respected HUBER STRAINPRESS® pressurised sludge screen, it has been increasingly interesting to us to see the number of different applications where the STRAINPRESS® has been utilised and requested.

Two insulated STRAINPRESS® machines for grease sludge screening, below a container into which the screenings are discharged
Operationally reliable biogas production with the HUBER Sludgecleaner STRAINPRESS®

On the way from a sewage treatment works to an energy park – Stadtentwässerung Dresden undertake a variety of measures on STP Kaditz to achieve this goal. One of these measures is the acceptance and treatment of foreign material for co-fermentation in the digesters.

Two of the four STRAINPRESS® units installed on site
STRAINPRESS® for sludge screening at Amsterdam: 3 years of successful operation

In order to remove the solids from the primary sludge in Amsterdam four HUBER STRAINPRESS® units were installed and successfully commissioned in 2011 via the company Dutch Spiral. The supply included removal systems and screenings containers.

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

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