Search

[...]Hamburg, Germany On the way to Germany's largest sewage sludge incineration plant: HUBER supplies three HUBER Disc Dryer RotaDry® units for the extension of VERA Hamburg by HAMBURG WASSER. The extension will increase the capacity of the VERA incineration plant by approx. 50 percent. As a result of the extension, the annual throughput of sewage sludge at the plant will increase to about 76,000 tonnes dry matter, with further potential for expansion to 97,000 tonnes per year. Energy self-sufficient showcase sewage treatment plant Digester sludge has been treated thermally in an environmentally friendly way in Hamburg since 1997. The VERA, a recycling plant for residues from wastewater treatment, is the core element of Hamburg's energy self-sufficient sewage treatment plant. In the VERA, municipal sewage sludge and screenings from the Köhlbrandhöft/Dradenau sewage treatment plant network as well as sewage sludge from third parties are thermally treated and disposed of without causing any harm. HAMBURG WASSER has been drying and incinerating its sludge at the Köhlbrandhöft site for over 25 years. The existing plants comprise six drying lines and three lines with a nominal capacity of 3 tonnes dry matter per hour each. Decision for HUBER Disc Dryer RotaDry® 2064 HAMBURG WASSER and Steinmüller Engineering GmbH decided to use the technology of the Berching-based company and ordered three HUBER Disc Dryer RotaDry® units for the extension of the VERA. The commissioned HUBER Disc Dryer RotaDry® 2064 machines each consist of 64 individually steam-heated discs with a diameter of 2 m and a wall thickness of 10 mm. When designing the dryers, it was necessary to consider different load cases during operation of the plant. The water evaporation capacity of each dryer is at least 4.6 t/h, which corresponds to a throughput capacity of approx. 10.8 t of original substance per hour. The partially dried sewage sludge with a dry residue of ≤ 42% is used as fuel in the next process step in the fluidised bed incinerator. The VERA II plant is located in the port of Hamburg. (© HAMBURG WASSER) Aerial view of the construction work for the expansion of VERA II. (© HAMBURG WASSER) Dimensioning of the HUBER Disc Dryer RotaDry® units The dryers were dimensioned in such a way that two out of three dryers can provide the partially dried sewage sludge required for VERA ll's full boiler load. The vapours (air saturated with water vapour) released during partial drying of sewage sludge are condensed with the help of a spray condensation stage. The process steam, which is extracted from the process steam system, serves as a heat source. Expected start of construction at the end of 2023, commissioning planned for 2024 The planned new building is directly adjacent to VERA's existing sewage sludge incineration plant and the sewage sludge dewatering and drying plant KETA. The limited space available for construction poses a particular challenge. Assembly is expected to start towards the end of 2023, and commissioning is planned for 2024. The aim will be to connect and commission the four lines with minimum downtime during the changeover. After completion of the expansion and the subsequent rehabilitation of the existing plant, VERA Hamburg is expected to ensure the safe and environmentally friendly disposal of the sewage sludge produced for many years to come. 100,000 megawatt hours of electricity and 165,000 megawatt hours of heat per year According to HAMBURG WASSER, the joint venture of Hamburger Wasserwerke GmbH and Hamburger Stadtentwässerung AöR, sewage treatment at the Hamburg STP produces around 1.5 million m³ of sewage sludge every year, which is digested, dewatered, dried and then incinerated. From "waste product" to energy provider: already today, the operation of VERA produces almost 90,000 megawatt hours of electricity and almost 100,000 megawatt hours of heat annually from the incineration of sewage sludge. These amounts of energy are used to supply the sewage treatment plant and the adjacent container terminal. The expansion of the plant is expected to increase the amount of electricity generated to 165,000 megawatt hours of heat per year in the future.[...]

[...]Ruggell, Liechtenstein Due to ever increasing surface sealing high amounts of rain water occur suddenly and flow into the sewer system along with domestic wastewater. As the stormwater amounts which occur are very high therefore, the flow capacity must be regulated by means of stormwater tanks to relieve the sewer system. The municipality Ruggell therefore commissioned the engineering office Wenaweser+Partner Bauingenieure AG in Ruggell (Liechtenstein) to plan the stormwater tank "Kirche". Now as the stormwater tank has been erected the combined water (stormwater and domestic wastewater) from the sewers can be stored and passed on to the sewage treatment plant after storm events. At the tank inlet the stormwater is treated at first with HUBER HSW screens. If the stormwater tank capacity is exceeded, the water passes a second treatment stage before the overflow is discharged to the receiving water course. In this way the pollution load the receiving water course has to cope with is reduced to a great extent. Depending on their mode of operation one distinguishes between different types of stormwater tanks: tanks designed to retain the first amount of discharged stormwater and stormwater tanks with overflow for settled combined sewage and tank overflow. The combination of both types is called a compound basin. The water in the stormwater tank designed to retain the first amount of discharged stormwater is very polluted as it contains the sediments in the sewers that are washed away with the first flush. The stormwater tank with overflow for settled combined sewage and tank overflow does not only store the rain water but also retains floating material and provides for additional clarification of the stormwater overflow discharged to the receiving water course. The stormwater tank "Kirche" is such a compound basin. Several HUBER products were supplied under this joint project between Picatech Huber AG and Helmut Breschan AG: two high-performance HUBER screens, pressure doors TT7 and TT7.Z and manhole covers SD7. The TT7 pressure doors are designed to be tight up to the upper tank edge and withstand the water pressure. The doors with locking levers are easy to operate. The manhole covers which were selected are pedestrian bearing manhole covers type SD7. As a gas pressure spring is installed as standard the cover can easily be opened and closed. We wish to take this opportunity to thank the municipality Ruggell for their cooperation and confidence in our products. It has been a pleasure for us to work with them and develop this solution. Facts and figures: Length 28.4 m, maximum width 16.5 m, maximum depth 8.4 m Maximum tank volume (compound basin): 250 m³ Maximum pump sump volume (pumping station): 200 m³ Installed capacity of the surplus pumping station: approximately 1,800 l/s[...]

[...]Spain Spain and the wider Mediterranean region experience intense rainfall repeatedly within very short time periods. This has increased over the last decade. During such events, when several hundred millimetres of rain fall in a short space of time, the ground can no longer absorb the water. This is particularly the case when the heavy rainfall follows a long period of hot weather with no precipitation. Even the smallest streams can quickly turn into frightening rivers that sweep everything away, causing great damage to people and the environment. Recent events in the greater Valencia area in 2024 have shown how quickly heavy rainfall can turn into a disaster. To avoid such disasters, space must be created for excess rainwater so it does not flow uncontrollably through cities and cause devastation. Spain’s solution: storm water tanks Spain's answer to this is storm water tanks. Rainwater is collected in large channels, some of which are up to six metres wide, and fed into an underground storage facility. This reduces the strain on sewage treatment plants and enables valuable rainwater to be stored temporarily or discharged in a controlled manner. However, this rainwater is heavily polluted, carrying all the coarse materials that accumulate on the streets and in the sewers during periods of heavy rainfall. HUBER Multi-Rake Bar Screen RakeMax® in use The HUBER Multi-Rake Bar Screen RakeMax® can be used here to effectively remove screenings from the rainwater – fully automatically. This protects the environment and significantly reduces operating costs, as manual cleaning is no longer necessary. In the Madrid region, great efforts are being made to meet the challenges of today and tomorrow. Canal de Isabel II, a state agency responsible for managing all phases of the integral water cycle in the greater Madrid area, currently supplies and connects more than 6.6 million people. The existing sewer network is approximately 16,000 km long and comprises 155 wastewater treatment plants with a total capacity of 3.2 million m 3 per day. Spain currently has a total of 470 rainwater retention tanks. Of these, 70 are located in the greater Madrid area and are the responsibility of Canal de Isabel II. Storm water tanks Butarque and Arroyofresno With the Butarque and Arroyofresno (Pinos) rainwater retention tanks, each with a capacity of up to 400,000 m³ (the largest capacity in the EU), the Spanish HUBER subsidiary HUBER Technology España, S.L.U. has already implemented significant projects with the Multi-Rake Bar Screen RakeMax® for screening storm water. In both plants, the HUBER RakeMax® screens reliably ensure that rainwater is freed of floating matter and waste, allowing the water to be pumped into the sewage treatment plants for further treatment without overloading them. Storm water tank Abronigales With the Abronigales project, HUBER Technology España, S.L.U. was able to secure another contract for the treatment of rainwater in storm water tanks. The Abronigales storm water tank has a capacity of around 200,000 m³, which is significantly smaller than Butarque and Arroyofresno. However, the incoming volume flow of 100 m³/s is the largest to date. The request from the Canal de Isabel II authority reached HUBER Technology España, S.L.U. at the end of 2023 and the project was completed within just six months. Previous heavy rainfall events had demonstrated that manually cleaning the Abronigales underground rainwater retention basin was costly. Therefore, a quick and effective solution had to be implemented within a very short time As there were no channels in this underground building to date, we were free to design the channels, and Canal de Isabel II built them based on our proposals and hydraulic calculations. 20 of HUBER Multi-Rake Bar Screen RakeMax® The decision was made to use 20 HUBER Multi-Rake Bar Screen RakeMax® 5760x1775/40 75°, which then discharge the screenings into a conveyor belt provided by the customer. Thanks to excellent cooperation between HUBER Technology España, S.L.U., Canal de Isabel II, and HUBER SE's internal departments, the order was placed in April 2024 and production could begin. As planned, the 20 HUBER RakeMax® screens were delivered in four stages by the end of September 2024. The aim was to install and commission all 20 machines before the rainy season in autumn 2024. Unfortunately, the weather was uncooperative, resulting in a delay of installation of a few weeks. Commissioning was successfully completed in December 2024. The first rainfall events have already shown that the HUBER RakeMax® screens can be relied upon: a reliable partner for screening rainwater – state of the art. Further projects in the pipeline And the success story continues: At the end of 2025, another storm water tank in Madrid (La China with a capacity of 130,000 m³) is to be equipped with HUBER RakeMax® screens. In addition, we are already in discussions with Canal de Isabel II regarding the emergency relief of the Abronigales storm water tank, equipped with HUBER Storm Screen ROTAMAT® RoK2 systems. Our RakeMax® screen is a success story, and we look forward to many more future storm water projects we will complete together![...]

[...]Stormwater Screens Combined sewage screens for wastewater treatment at sewer overflows and stormwater discharges HUBER Storm Screen ROTAMAT® RoK1 Stormwater Screens HUBER Storm Screen ROTAMAT® RoK2 Stormwater Screens Innovative HUBER System Solutions for Combined and Stormwater Treatment Advanced combined and stormwater treatment in municipal combined sewers is a main issue with regard to sustainable environmental and water protection. HUBER screens are used to retain debris and other coarse solids within the sewer systems and to prevent them from overflowing into receiving water bodies during storm events. Our screens can be installed upstream of, on top, or downstream of overflow weirs. With solids retention, constant design retention level and overflow measurement, HUBER offers reliable solutions for a lot of problematic situations in combined and stormwater sewers. An innovative combination of mechanical treatment systems for combined and stormwater overflow ensures sustainable environmental protection and improved water quality. The optimally suited screen is selected depending on the required or desired capture rate, flow requirement and structural conditions. Our global presence and experience allows our experts to propose the best solution to any problem and guarantees a maximum operating reliability and reduced investment and operating costs. FAQs Frequently Asked Questions Where is a storm screen used? Storm screens are used in the combined storm and sanitary sewage line of a sewerage system at storm water overflows. These overflow structures serve to relieve the sewer network during rain events by temporarily storing wastewater or directly discharging it into the watercourse. How often does a relief discharge take place? Depending on the region and the type of structure, overflow discharge at a combined sewage screening system occurs several times a year. Usually, it is assumed that a storm screen is in operation for about 1000 hours in 10 years. What can be done to keep screenings from combined sewer overflows out of a water body? In a combined sewer system, direct overflow discharge to a water body can occur several times a year. Many municipalities therefore use a storm screen to prevent coarser solids from entering the watercourse in the event of overflow discharge.[...]

[...]Newark, UK A HUBER Technology Wastewater Case Study HUBER Technology recently completed a project at Crankley Point STW located in Newark. The scheme was part of a £60 million investment by Severn Trent Water in Newarks waste and water systems to prevent flooding at around 400 homes in Newark. Part of this work involved the construction combined sewer tunnel 2.8m in diameter with a new terminal pumping station built at Crankley Point STW. Project Profile HUBER Technology were first approached to look at the outline design of the project in 2012 directly by Severn Trent Water and as the project developed further in 2015 with NMCN and the BNM alliance Through this early involvement in the project we were able to develop the most cost effective solution which provided the best solution for this challenging project. The terminal pumping station features four dry weather flow pumps which pump the flow directly into the inlet works and six storm pumps which are used only in storm conditions. Each storm pump is capable of pumping 1,000 l/sec each and the combined flow of 6,000 l/sec needed to be screened to prevent debris from entering the River Trent A working scale model of the complete pumping station and screen chamber was constructed to ensure that it worked correctly; this allowed us to ensure the screens would function in the way they were designed. HUBER Technology Supplied 2 x HUBER Storm Screen ROTAMAT® RoK1 Objective The two storm screens were designed to screen the full maximum storm flow of 6,000 l/sec delivered from the 6 storm pumps. The 6mm two dimension screens prevent debris and screenings from entering the River Trent during storm conditions, both screens will operate as soon as a storm pump starts. Any screenings captured by the screens will be discharged back into the dry weather flow channel to be treated and removed by the current inlet works. Solution Through the early involvement in the project, several possible solutions we developed using a variety of screen designs depending on the flow rates and design of the pumping station. Options were considered using up to four screens and different solutions to potentially remove the screenings into a dedicated screening handling plant. The final solution involved the use of two 700mm diameter screens with a length of just over 8,000mm, mounted on opposite weirs to screen the full flow. The screenings collected by the screens are transported by an auger to the non-drive end where they are discharged via a discharge scraper into the dry weather flow channel. This allowed the screenings to be returned to the flow to be removed by the inlet screens at the site. By utilising a double dissipation zone cover on the screen we could ensure no storm flow would bypass into the dry weather flow channel and then overwhelm the inlet works. The double dissipation zone prevents flow from entering the screen over the weir but allows any flow transported by the auger to pass to the outfall. The screens start to operate when the storm pumps start and will run on after a storm event to ensure the screen basket is clean for the next storm event. The project was successfully completed and commissioned in December 2018 and is now ready to operate. “The high profile nature of the project meant that it was imperative we engaged early and effectively so that a suitable innovative solution could be agreed.” The project was delivered on time and to budget and is an excellent demonstration of close involvement with the water company and the contractor.” (Richard Willis, Area Manager) Installation photo Pumping station and screen chamber Storm screen operation[...]

[...]HUBER Digital Platform Save 5% straight away when shopping online via the HUBER Digital Platform. Offers are free of charge and can be downloaded straight away. go to HUBER Digital Platform[...]

[...]Stemwede, Germany At the Stemwede wastewater treatment plant in North Rhine-Westphalia, a major infrastructure project has been successfully completed in recent months: The plant’s mechanical pre-treatment system has been completely renewed. This involved the removal of two ageing screens and the refurbishment of the concrete channel. Subsequently, two modern HUBER Multi-Rake Bar Screen RakeMax® units with 5 mm bar spacing and a high-performance HUBER Wash Press WAP were installed. In addition, a HUBER Coanda Grit Washer RoSF4 has been operating reliably at the plant since 2004. Complex construction work The work was carried out whilst the plant was operating as normal. This placed high demands on planning, coordination and collaboration. Downtime or reductions in wastewater treatment performance had to be avoided at all costs. To ensure this, the project was divided into two clearly separate stages: First, one screen was replaced whilst the second string ensured continued operation. Subsequently, the second section of the plant was refurbished. In addition to replacing the mechanical equipment, a comprehensive refurbishment of the concrete channel was also required. This structural work was necessary to ensure the new technology could be optimally integrated and to establish the plant’s long-term operational reliability. A partnership of equals A key factor in the project’s success was the close and trusting collaboration between the plant operator and HUBER SE. From detailed planning through coordination of the construction phases right through to commissioning, both sides worked in close coordination. The shared goal: a reliable, high-performance and future-proof pre-treatment system for the Stemwede sewage treatment works. The wastewater plant manager, Sandro Menne, gives a thoroughly positive assessment: ‘This project has shown what is possible when everyone involved pulls together. Despite the work being carried out whilst the plant was in operation, everything went smoothly – that’s exactly how you imagine such a project to go.’ Greater efficiency and operational reliability With the new screening technology and the integrated wash press, the mechanical pre-treatment system in Stemwede is now state-of-the-art. The plant benefits from higher separation efficiency, improved screenings treatment and, overall, increased operational reliability. The project in Stemwede is therefore a successful example of how even challenging refurbishment measures in existing facilities can be implemented when planning, technology and collaborative partnership go hand in hand.[...]

[...]Like mechanical components, the control system components of your HUBER machine are subject to natural ageing and wear. These can have a negative effect on the function and operational safety of the plant and impair it. In the worst case, this can result in machine failure – with far-reaching consequences. In practice, in such a "worst case scenario", the machines are operated non-stop or safety devices are bypassed. This can lead to extreme wear or even mechanical damage to the machines and, in the worst case, to accidents and personal injury. Long machine downtimes and thus high costs are the result. Preventing risks for persons and plant with the HUBER retrofit solution With the HUBER retrofit solution, downtime of the plant and possible risks to persons can be prevented at an early stage. Acute action is required for SIEMENS S5 and S7-200 series controllers. For these series, new spare parts are only available on the market at high costs and with long delivery times. For the wastewater treatment plant Bonstetten, district of Augsburg, HUBER received the order to update the control system of the multifunctional HUBER Compact Plant ROTAMAT® Ro5 with HUBER Screen ROTAMAT® Ro2, HUBER Screw Conveyor Ro8 T and HUBER Grit Washer RoSF4 T to the current and future-proof technical standard. Operational management of the wastewater treatment plant using the HUBER retrofit solution: safe, simple and fast Silke Otterbein, who is in charge of the operational management of the wastewater treatment plant, says about this important renewal of the switchgear and control system: ”For us, the functionality and operational reliability of the mechanical pre-treatment system is very important. Unfortunately, the existing control system experienced increasingly frequent malfunctions and minor failures.” A complete failure of the mechanical pre-treatment system would have had catastrophic consequences for the subsequent wastewater treatment plant operation. The elimination of consequential damage would have meant immense costs and additionally high personnel expenditure. ”HUBER service consultant Erwin Wagner carried out a cost-neutral on-site survey of the switchboard and control system, followed by a project-specific quotation on his visit report,” says Silke Otterbein. ”The conversion itself went smoothly: the old hardware of the programmable logic controller (PLC) and the operating device were dismantled by the HUBER service technician and the new components were installed. All devices had already been programmed in advance for our machine technology and our needs. The complete system could therefore be put into operation again immediately after the replacement of the control system. Finally, the operating personnel were instructed in the new technology – this was easy due to the intuitive operation of the new touch display.” HUBER installs new technologies HUBER not only supplied and installed new PLC hardware, but also replaced the transformer with bridge rectifier for generating the control voltage with a regulated power supply unit, and fuses with circuit breakers. Instead of the screen’s existing level measurement with air injection, hydrostatic level measurement is now used for continuously measuring the water level. Thus, the plant is also well prepared for any heavy weather events. ”Our 20-year-old control system has been brought back up to the current and operationally safe technical standard, and we are now well prepared for the future” sums up Silke Otterbein. HUBER would like to take this opportunity to thank Silke Otterbein from BSB5 Abwassertechnik GmbH & Co. KG and her colleagues on site for their trust and good cooperation and wishes them trouble-free operation of their plant. Do you also have a HUBER machine or plant? Our recommendation: Contact service@huber.de at an early stage before a machine or plant failure occurs. We will be happy to advise you without obligation on site or by phone to find the optimum solution for your plant together with you.[...]

[...]Eleven young people start their professional life at HUBER SE: the company welcomes ten apprentices and one dual student at the company headquarters in Berching. During an introductory event lasting several days, the young people get to know the company and the site and familiarise themselves with their new colleagues. Start of a new phase of life for eleven young people: HUBER welcomes ten apprentices and one dual student at the start of training in 2021. Six of the apprentices will start their careers in the industrial sector as precision mechanics, metal workers, mechatronics engineers and wastewater technology specialists. Four trainees start their commercial and technical training as industrial clerks and technical product designers. In addition, a dual student in bio and environmental process engineering at the East Bavarian Technical University Amberg-Weiden starts his career at HUBER. CEO Georg Huber: "For environment, nature and climate protection we need young and motivated people". "We are delighted that young people have decided to take up an apprenticeship and dual study programme at HUBER," says CEO Georg Huber. "As a company operating worldwide in a market that continues to grow, we will continue to build on your ideas in the future." Especially in view of the increasing importance of the environment, nature and climate protection, young and motivated people are needed to tackle the challenges of the future together and contribute to HUBER's success. Human resources department, works council and youth and trainee representation introduce themselves For the easiest possible introduction to the chapter "Apprenticeship" and "Studies", the first item on the agenda was a welcome by the Management Board, the Works Council and the Youth and Apprentice Representation. "It is particularly important to us to guarantee you the best possible start to your professional life despite the Corona pandemic," said Huber. Also at the second training start during the Corona pandemic, all participants complied with the applicable regulations. After introductory words by Markus Hummel, Chairman of the Works Council, and the Youth and Trainee Representation, and then getting to know each other, Human Resources Manager Michael Hiller presented the company and HUBER's products. Following an occupational safety training session, the young people got to know their future employer even better in the form of a company rally, before they were sent off for their well-deserved first day of work. "Trainee etiquette" and entertaining team building On the second day of the introductory event, the young people were welcomed by members of the human resources department, who explained the most important aspects of the apprenticeship. Before a tour of the company, the young people were given a "trainee etiquette manual" to prepare them in the best possible way for the apprenticeship and study period as well as for the work in the company. At the end of the second introductory day, an entertaining team-building activity awaited the young people: to give them the opportunity to get to know each other better as well as the trainers and members of the youth and trainee representation, a round of football and swing golf was on the agenda. On the third day, the industrial trainees already started in their specialist department, while the other trainees and the dual student received an introduction to the IT systems before the daily work routine began for them as well. HUBER SE wishes all of them a good start into their professional life and looks forward to a successful cooperation in the years to come.[...]

[...]Bielefeld, Germany Stadtwerke Bielefeld GmbH are a modern multi-utility company. With the city of Bielefeld (50.1%) and Bremer swb AG (49.9%) as partners, their priority is to meet customer and market requirements. With about 1,280 employees and a turnover of 700 million euros a year they are one of the big German municipal suppliers of energy, heat and drinking water. Stadtwerke Bielefeld supply the drinking water for about 320,000 residents and 1,500 industrial companies in the city of Bielefeld itself, plus for about 40,000 people living in the greater Bielefeld area. In 2010, drinking water consumption was about 17.3 million m³. The total length of the distribution network is 1,503 km. In the field of water production the activities of Stadtwerke Bielefeld focus on the operation, new construction, reconstruction and deconstruction of its 16 water production plants and 157 wells. Other plants within their responsibility: 4 water treatment plants 10 pumping stations 18 pressure change plants 24 water reservoirs 17 water transfer and takeover stations including pipelines Stadtwerke Bielefeld continuously carry out refurbishments and reconstruction work and build new facilities. They also upgrade pipelines and conveyor systems to state-of-the-art level and take measures to improve the energy efficiency of their facilities. Cast iron and steel pipes are replaced with stainless steel pipes and various HUBER products installed: Safety doors Manhole covers Air filter units Safety climbing ladders Fitting and enlarging pieces and fittings Products made of 1.4571 or 1.4404 stainless steel are used for components in contact with water. For other applications they use 1.4301 or 14307 stainless steel products. Stadtwerke Bielefeld attach great importance to high hygiene standards and therefore plan to install HUBER air filter plants in all their water reservoirs. The size of air filter plants to be used depends on reservoir volume and reservoir management. We would like to take this opportunity to thank Stadtwerke Bielefeld for their confidence in our products. Special thanks go to Bernd Niehaus, Peter Hildebrand and Harald Necke for their excellent cooperation right from the beginning, from the planning phase to project execution.[...]