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HUBER Belt Dryer BT Flexible, fully automated medium temperature solution for reliable sewage sludge drying

Create value from waste!

Sewage sludge is the „waste product“ that is generated on sewage treatment plants. Dry your sewage sludge to reduce disposal costs and use your „waste“ as a fuel or fertiliser resource!

  • Dry, low-dust, disinfected granular biosolids product
  • Easy and safe to handle
  • Tailor-made heat utilisation concept
  • Reduced disposal costs
HUBER Belt Dryer BT - the flexible, fully automated medium temperature solution
HUBER Belt Dryer BT
HUBER Belt Dryer BT 24
HUBER Belt Dryer BT 24
HUBER Belt Dryer BT 20 at the site of a sewage sludge mono-incineration plant
HUBER Belt Dryer BT 20 at the site of a sewage sludge mono-incineration plant
Sludge bunker and pump
Sludge bunker and pump
Multi-line design of the HUBER Belt Dryer BT for large projects
Multi-line design of the HUBER Belt Dryer BT for large projects
Heat supply and fans of the HUBER Belt Dryer BT
Heat supply and fans of the HUBER Belt Dryer BT
Condensation stage with heat extraction and fully automatic heat exchanger cleaning
Condensation stage with heat extraction and fully automatic heat exchanger cleaning
Head piece with integrated automatic belt cleaning
Head piece with integrated automatic belt cleaning
Sludge feeding with HUBER extruder unit (pelletizer)
Sludge feeding with HUBER extruder
HUBER extruder for sludge feeding onto the belt
HUBER extruder for sludge feeding onto the belt
Design sketch: HUBER offers you customised plant solutions. The HUBER Belt Dryer BT uses various waste heat sources and is therefore ideal to be integrated into existing processes
Design sketch: HUBER offers you customised plant solutions. The HUBER Belt Dryer BT uses various waste heat sources and is therefore ideal to be integrated into existing processes
HUBER Belt Dryer BT 16 with integrated maintenance platform
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Design and Function

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The HUBER Belt Dryer BT makes waste a valuable resource ...

… in the most efficient way ...

The unique HUBER HELIX air flow system ensures that only the minimum required amount of drying air is blown through the dryer by the ventilators. In combination with the CFD-optimised dryer geometry, an extremely low electrical energy demand is achieved with this air flow system.

The closed process air circulation system with integrated condensation stage reduces the exhaust air volume flow to 5,000 m³/h maximum and contributes to keeping down operating costs.

... in the most reliable way ...

The HUBER Belt Dryer BT is designed for fully automatic 24/7 operation. All its core components are robust and “made in Germany”.

Integrated automatic belt cleaning and the HUBER extruder guarantee a reliable and failure-free dryer operation. High safety standards and low drying temperatures of 70 °C to 150 °C make the HUBER Belt Dryer BT so safe that all ATEX requirements are reliably met.

... in the most comfortable way ...

The electrical control system of the HUBER Belt Dryer BT responds fully automatically to external influences that could impair the complex drying process, eliminating the need for intervention by the operating staff. The dryer can easily be cleaned and maintained by a single person.

Optional telemaintenance solutions are additionally available to enable system operators to monitor their drying plant from anywhere, or even control and operate it if required via an end device, such as PC, mobile phone or tablet PC.

... in the most sustainable way ...

Consequent use of exhaust heat from processes, such as power generation from sewage gas or biogas, reduces operating costs and CO2 emissions. Optional heat recovery from the dryer (to heat buildings or digesters) also contributes to the sustainable protection of the environment. The dry granulate produced by the dryer can be used both as fuel and fertilizer.

... in the most clever way ...

The HUBER Belt Dryer BT represents state-of-the-art technology of sewage sludge drying. Maximum energy efficiency, full automation and flexible use of exhaust heat guarantee low operating costs and easy system operation. The dryer can also easily be integrated into existing installations and process plants. Various components of peripheral plant equipment ensure maximum flexibility and can be selected to meet specific requirements.

Customised Plant Solutions

HUBER offers you customised plant solutions. The HUBER Belt Dryer BT uses various waste heat sources and is therefore
ideal to be integrated into existing processes.

Combined with HUBER dewatering systems and HUBER Screw Conveyor Ro8 T, the HUBER Belt Dryer BT offers the customer a reliable complete solution for perfectly tailored sludge treatment.

The HUBER Belt Dryer BT has proven its reliability in many projects worldwide.

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FAQ

Frequently Asked Questions

Heat recovery (e.g. for heating buildings or digesters) is optionally possible, actively contributes to climate protection and also saves costs. Flow temperatures of up to 70 °C are possible (depending on dryer size and heat supply).

Starting at about 3,000 t/a up to over 200,000 t/a, HUBER offers tailor-made solutions for drying your sewage sludge.

The intermediate storage decouples the operation of the drying plant from the operation of the dewatering or sewage sludge logistics. The aim is to ensure 24/7 operation of the drying plant.

Almost all heat sources from a temperature of 70°C can be used. Waste heat from CHPs or other processes is particularly suitable for the belt dryer. Do you have another energy source? Ask our experts what options are available specifically for your application!

The advantages of this technology are obvious: The sewage sludge is pressed into an always identical shape and placed on the dryer belt as a well-permeable pile of material. The drying conditions are the same at every point in the pile, which guarantees homogeneous drying of the sewage sludge with a very low dust content in the end product. This completely eliminates the time-consuming and wear-intensive back-mixing of already dried material.

In Germany, the so-called "TA Luft" standard (Technical Instructions on Air Quality Control) regulates the emission limits for sewage sludge drying plants. When sewage sludge is dried, highly volatile compounds inevitably escape, which must be removed from the exhaust air in order to comply with the TA Luft limits and to prevent odour nuisance.

Case Studies

HUBER Solutions in Operation

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2024-02-04 Mooresville, North Carolina, USA

A success story: 10 years of HUBER Belt Dryer operation in Mooresville (North Carolina, USA)

The ninth belt dryer project was sold in the USA in 2022. The USA has thus established itself as the second largest belt...

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2023-12-19 Timpanogos, USA

HUBER Technology Inc. wins its largest belt dryer project in the USA to date in a public participation competition

The American HUBER subsidiary delivers 2 Belt Dryers BT 30 to Timpanogos, Utah. It is the largest belt dryer project in...

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2023-10-15 Šumperk , Czech Republic

HUBER complete solution: sludge treatment plant at Šumperk WWTP officially inaugurated

On Thursday, 12 October, the official inauguration of the sludge treatment plant at the Šumperk WWTP in the Czech...

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2022-11-21 Isle La Plume, WI,
USA

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...

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2021-07-16 Erlangen, Germany

Erlangen decides in favour of HUBER technology for sewage sludge drying

At the beginning of 2021, HUBER was awarded the contract for the supply of a HUBER Belt Dryer BT 16 for WWTP Erlangen...

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2021-05-17 Mannheim, Germany

HUBER modernises sludge drying on Mannheim wastewater treatment plant

In 2017, HUBER received the order to modernise the sludge drying system at the Mannheim wastewater treatment plant....

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2020-03-23 Medellin, Colombia

HUBER SE commissions one of the largest sewage sludge belt drying plants worldwide

The largest HUBER Belt Dryer BT worldwide installed several months ago has since been convincing in operation. In this...

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2019-06-28

HUBER industrial customers go for sewage sludge dryers

The advanced treatment of sewage sludge or industrial residual sludge is increasingly gaining in importance also for...

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2018-10-16 Innsbruck, Austria

Energy-efficient sewage sludge drying at Innsbruck with HUBER Belt Dryer BT

With its strategy “from sewage works to power plant”, the wastewater treatment plant in Innsbruck sustainably produces...

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2017-03-30 Isle of Man, Great Britain

Isle of Man: Successful start-up of a HUBER Belt Dryer BT 16

The first HUBER Belt Dryer BT installation in Great Britain went officially into operation recently. On the Isle of Man,...

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2016-10-18

Innovative control system for HUBER Belt Dryer BT

HUBER develops a revolutionary control system for BT Belt Dryers: The system is able to adjust the plant throughput...

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2016-05-02 Nova Gorica, Slovenia

Belt Dryer BT 8 in Nova Gorica, Slovenia

HUBER received the first order for a Belt Dryer BT installation in Slovenia. Besides a number of other HUBER products,...

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2013-11-07 Sheboygan, WI, USA

HUBER Belt Dryer installation in Sheboygan

A new HUBER Belt Dryer project is on the way in the USA. A BT 18 dryer for a throughput of 11,700 t/a will be installed...

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2005-10-01 Ingolstadt, Germany

Sewage sludge drying on STP Ingolstadt – a success story

Two HUBER belt dryers BT were put into operation on STP Ingolstadt in August 2005. The installed total dryer surface is...

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