”Quality, reliability, planning security“: Mannheim WWTP also relies on HUBER service and maintenance contract for its large machinery fleet

Do you have a wastewater treatment plant of manageable size with few machines? Do you use not only HUBER machinery but also systems from other manufacturers? Or do you operate a large wastewater treatment plant with dozens of machines? All this is irrelevant when concluding a HUBER service and maintenance contract, because HUBER offers the optimal solution for every requirement.

One of the major projects of the more than 1,100 existing HUBER service and maintenance contracts is Eigenbetrieb Stadtentwässerung (EBS) Mannheim with its sewage treatment plant, which has been a loyal maintenance contract customer for years. With meanwhile almost 20 HUBER products – ranging from simple conveying technology, machines for mechanical wastewater treatment, grit preparation processes up to highly complex belt dryers – almost everything is included in this HUBER service and maintenance contract.

Mr. Gremm, foreman in charge of the machinery and equipment on the Mannheim wastewater treatment plant, told HUBER in an interview why he and his team with the many machines they have in operation trust in the HUBER service and maintenance contract – and have done so for many years. 

For Stadtentwässerung Mannheim, the decisive reasons for concluding a HUBER service and maintenance contract were, apart from maintaining optimum functionality and extending the durability of the equipment, the constant exchange of information as well as the know-how transfer between the highly qualified HUBER technical staff and the employees of the sewage treatment plant. The training of the own staff and the release of their potential were also important criteria.

Another important consideration was the extension of the warranty from two to four years in accordance with the German Construction Contract Procedures (VOB/B), according to the staff of the Mannheim sewage treatment plant. In principle, the statutory limitation period is two years. Only by concluding a HUBER service and maintenance contract can this warranty period be extended from two to four years, which is an immense advantage for HUBER customers – they receive this exclusively from the manufacturer.

Highest operational reliability and consistently high machine performance

”The machine technology covered by the HUBER Service and Maintenance Contract is part of the most critical process steps in wastewater treatment. The failure of one of these plant components in extreme weather conditions can affect the operational safety of our complete plant,” says Mr. Gremm.

With a HUBER service and maintenance contract, the machinery and equipment are inspected annually according to the detailed HUBER checklist. This minimises failure risks and downtimes and ensures the highest possible operational safety.

Due to a wide variety of factors, such as long running times and high loads on the machines or abrasive substances, some customers rely on a six-monthly maintenance interval, including the Mannheim sewage treatment plant.

More planning reliability, increased operational safety and exact budget planning: great advantages for HUBER customers

According to the Mannheim WWTP, the HUBER service and maintenance contract increases planning reliability and saves in-house capacities that can be planned elsewhere. Own, internally running projects are thus not jeopardised.

The timely replacement of spare and wear parts and the scheduled deployment of the service technician contribute significantly to increasing operational reliability. System failures and any associated consequential damage can thus be minimised, which enables precise budget planning: A longer service life of the machine is achieved and the calculable operating costs are reduced in the long term.

The most important criteria of a competent service partner

The most important criteria that Mannheim WWTP expects from a competent service partner are: sound expert knowledge of current machine technology, reliability, punctuality, flexibility, communication skills and good manners – all of which HUBER fulfils to their full satisfaction.

The Mannheim sewage treatment plant also emphasises the consistently outstanding quality of the maintenance work carried out by HUBER's competent personnel. Thanks to flexibility on both sides, work processes can easily be adapted to current needs.

HUBER would like to thank the Mannheim wastewater treatment plant for the trust they have placed in us and for the excellent cooperation. For HUBER, the results of the interview are a confirmation of the good performance and cooperation so far. At the same time, we are committed to maintaining the high level of quality and performance of our HUBER services.

 
Do you have any questions or would you like to know more about the individual HUBER service and maintenance contracts?

Please do not hesitate to contact us! We will be happy to advise you on the best solution concept for your needs.

You can reach your HUBER Service Centre International at:

Phone: +49 8462 201-455 or by e-mail at: maintenance (at) huber.de 

Machines already under maintenance contract:

• 1x HUBER Grit Treatment Process RoSF5 
• 1x HUBER Wash Press WAP^® HP size 4
• 4x HUBER Multi-Rake Bar Screen RakeMax^® size 5300x1252x6mm
• 2x HUBER Multi-Rake Bar Screen RakeMax^® size 7300x1352x40
• 2x HUBER Multi-Rake Bar Screen RakeMax^® size 7040x1775/30 75
• 1x HUBER Multi-Rake Bar Screen RakeMax^® size 7040x2275/30 75
• 1x trough belt conveyor TMG BB=650 AA=6500
• 2x HUBER Belt Dryer BT 22
• 2x HUBER ROTAMAT^® Screw Conveyor Ro8 T, trough version, size 273
• 1x HUBER ROTAMAT^® Screw Conveyor Ro8 T, trough version, size 273 TWIN
• 1x HUBER ROTAMAT^® Screw Conveyor Ro8 T, trough version, size 355 TWIN

Machines commissioned in 2022:

(HUBER service and maintenance contract under consideration here as well):

• „1x HUBER Belt Dryer BT 22
• 1x HUBER ROTAMAT^® Screw Conveyor Ro8 T, trough version, size 273

Mannheim WWTP:

• „One of 41 large sewage treatment plants in Baden-Württemberg, falling into size class 5 (> 100,000 PE).
• Design size: 725,000 PE
• Treats an average of 87,000 m³ of wastewater from households, industry and commerce from the entire city area every day.
• The wastewater passes through four treatment stages in the treatment plant within 24 hours before the clarified and filtered water is discharged into the receiving waters of the Rhine.
• The sewage sludge obtained from the wastewater is treated in four process steps and then dried. The dried sewage sludge granulate, which currently amounts to approximately 10,000 tonnes per year, goes to the cement industry for thermal utilisation and material recycling.
• Rotating three-shift system with a staffing level of 36 persons in order to be able to react immediately with personnel on the plant 24/7.