Search

[...]Munich, Germany A total of 1,816.6 million hectolitres beer were produced worldwide in 2008. Assuming an average fresh water consumption of 400 litres for one hectolitre beer, this means a fresh water consumption of 726.6 million m³. About one third of the fresh water, however, could be replaced with service water as it is not necessary to use highest drinking water quality in all production areas. A part of the saving potential of 240 million m³ water can only be exploited with the use of new technical solutions. Under a research project of the Bavarian Research Foundation and in cooperation with the institutes of the technical university of Munich, we have therefore examined a process technology solution consisting of modular components for the advanced treatment of brewery wastewater. The aim of the project is reuse of treated water without the addition of chemicals, or with only a small amount of chemicals. We have installed a test plant at Erdinger Weißbräu Werner Brombach GmbH to treat a partial flow of the effluent from anaerobic reactors. The first treatment step is flotation with subsequent biological treatment in a membrane plant which uses immersed rotating ultrafiltration membranes. The wastewater to be treated flows through the feed line into the flotation tank and is intensively mixed with dissolved air in the inlet pipe already. The gas bubbles produced have a size of 20 µm to 70 µm and are passed into the plant via a clog-free valve. An additional integrated lamella separator increases the effective separation surface of the plant so that its maximum admissible hydraulic load is higher than that of conventional plants of equal dimensions. The effluent from the flotation plant, which is virtually free of solids, is collected in a storage tank from where it is passed to the biological treatment system, the membrane bioreactor. The nitrification tank, installed downstream of the denitrification stage, is aerated by membrane aerators mounted on the tank bottom. The effluent from the nitrification tank flows by gravity into the filtration tank with the membrane module where the permeate is discharged at intervals by a submerged vacuum rotation membrane. The rotating membranes are the core part of the MBR system and the MBR plant achieves high clarification efficiency with continuously low concentrations of below 70 mg COD/l. Due to this high effluent quality the treated water is suitable for further treatment or reuse.[...]

[...]Freystadt, Germany For almost two decades, the municipality of Freystadt and HUBER SE have maintained a good business relationship: several HUBER machines are in operation at the town’s wastewater treatment plant and, since 2018, a HUBER service and maintenance contract for the sludge treatment machines has also been in place. The service contract was ordered in 2018 together with the delivery of new machines and now regularly expired in mid-2022 after the warranty extension from 2 to 4 years, which is always possible with a maintenance contract. We are particularly pleased that we can continue our service partnership after this period and that a HUBER service and maintenance contract has been concluded again. Included in this service contract are: 1 HUBER Screw Press Q-PRESS® (size 280) 2 HUBER Screw Conveyor Ro8 T units (size 273) 1 HUBER Sludge Turner SOLSTICE® 9 According to Johann Weihrich, the HUBER Sludge Turner SOLSTICE®, the sludge conditioning system at the wastewater treatment plant with subsequent solar drying of sewage sludge, is working to his satisfaction and should, of course, continue to operate reliably for as long as possible thanks to a HUBER service and maintenance contract. Professional competence and good customer service Together with his colleagues Mr. Breindl and Mr. Meixner, Mr. Weihrich takes care of the Freystadt WWTP, which is designed for 8,000 population equivalents, and explained to HUBER Service in an interview the reasons for signing a HUBER service and maintenance contract again: As one of the advantages of such a service contract he mentioned the technical competence and good support by the HUBER service technicians. The machine technology installed at that time around the sludge turner and the screw press had been technically new for the team of Freystadt WWTP four years ago. The HUBER service staff provided competent answers regarding operation and control of the new machines. Fast assistance and great support What they particularly appreciated about this service solution was that they were helped on the spot and often just in time, and that the team received competent help from HUBER Service without any problems. Mr. Weihrich also appreciates the fast troubleshooting by HUBER Service and the great support by HUBER service advisor Erwin Wagner, who is always there to assist with help and advice. Expert maintenance, operational safety and higher efficiency Freystadt WWTP had again decided in favour of a HUBER maintenance contract in order to keep machine failures and malfunctions as low as possible, as in previous years, he said. The HUBER service and maintenance contract and the associated regular expert maintenance have increased operational reliability, making the operation of the plant even more economical. Quality, transparency and calculable costs Among the decisive criteria for a HUBER service contract, Mr. Weihrich mentioned the quality and transparency of the HUBER Service and its performance, the calculability of costs due to the fixed price associated with the maintenance contract, and thus better traceability of the costs incurred, also with regard to annual budget planning. Smooth communication with HUBER service technicians The HUBER service technicians, who are on site for our customers week after week, also received positive feedback from the Freystadt WWTP team: friendly and courteous, they say – uncomplicated communication is simply possible here. The HUBER Global Service team would like to thank the municipality of Freystadt, the wastewater foreman Mr. Weihrich and his colleagues Mr. Breindl and Mr. Meixner for the trust they have placed in us so far and hopes for a continued very good partnership and successful cooperation in the future.[...]

[...]Isle La Plume, WI, USA In 2021, 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 city of La Crosse, with a population of around 52,000, is located in the state of Wisconsin, which is situated in the Midwest of the USA. Total investment volume of around 60 million US dollars 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. Top seller: the HUBER Belt Dryer BT is one of the company's top-selling products Here shortly after beginning the construction phase at La Crosse WWTP The previously installed shredder at the La Crosse wastewater treatment plant. Henk-Jan van Ettekoven (right), managing director of HUBER Technology Inc., at the start of the modernisation. A HUBER Belt Dryer BT size 18 will be used at the La Crosse wastewater treatment plant in the future. Screen building: HUBER Multi-Rake Bar Screen RakeMax® CF One of the reasons for implementing this modernisation project were two defective shredders that were regularly flooded and caused significant bypass problems. HUBER solved this problem by installing one of its multi-rake bar screens, which has proven itself in thousands of installations worldwide. This allows work to be carried out on the operating deck. The HUBER RakeMax® CF screen with its vertical design enabled the engineer to combine both shredding channels into one larger channel and to route 100% of the influent through one screen. This is capable of handling the full hourly peak flow. Special baffles for the inlet allow for an emergency overflow (bypass) in case of a power failure of the plant. The screen is also very easy to maintain because it has no bottom bearing and thus no submerged wearing parts. Throughput of over 90,000 cubic metres per day Due to the robust and vertical design of the HUBER Multi-Rake Bar Screen RakeMax® CF and therefore only minimal adaptations to the existing structure required, HUBER Technology Inc. could convince the customer. The screen is designed for a throughput capacity of 24 million gallons per day (90,850 m³/d). The HUBER Multi-Rake Bar Screen RakeMax® CF consists of a U-shaped stationary bar rack arranged parallel to the direction of wastewater flow. The wastewater streams into the open face of the screen and then out through both the left and right bar rack. The solids are efficiently retained inside. The retained screenings are carried vertically upwards out of the concrete channel and transferred to the upper discharge area. Compared to shredders, the arriving screenings are efficiently removed from the wastewater stream. Primary sludge screening: HUBER Sludgecleaner STRAINPRESS ® To ideally protect the digesters from disturbing solids entering from the primary sludge, a HUBER Sludgecleaner STRAINPRESS® separator was installed on the influent side. This is designed for a throughput of max. 314 gallons per minute (approx. 72 m³/h) with a solids content of 3.36% DR. In the solids discharge, the sludge screen achieves approx. 35% DR. Sewage sludge drying: HUBER Belt Dryer BT 18 In addition to the modernisation of the sewage treatment plant, the customer also asked HUBER to address the existing problems in sewage sludge treatment. The recent wet weather made it difficult to apply the sewage sludge to the soil due to the odour nuisance, and storing the material for later spreading was not an option for the customer. Looking for new ways to treat and dispose of sewage sludge, the customer opted for drying the sludge, thus ensuring long-term disposal security. The best drying process: customer visited HUBER reference plant In order to select the most suitable and best drying process, the customer visited HUBER's reference plant in Sheboygan, Wisconsin. There he could see for himself the quality of the HUBER belt drying system, especially since the turnkey plant built by HUBER in 2014 has been in operation to the customer's full satisfaction since completion. Over 28,000 tonnes of sludge per year The mechanical installation of the BT 18 belt dryer started at the beginning of August 2022 and has already been completed. The final commissioning of the dryer is scheduled for the 2nd quarter of 2023. The amount of sewage sludge to be dried in La Crosse will be 28,654 tonnes per year in the future. Competence, development and innovation In the coming years, HUBER will continue to develop the BT belt dryer and adapt it to the market situation. With competence, new innovative ideas and pioneering spirit, HUBER will continue to meet the challenges of the highly dynamic sewage sludge drying market. The La Crosse sewage treatment plant will add another project successfully completed by HUBER to the portfolio in the field of sewage sludge drying. USA now second largest market for HUBER belt dryers Meanwhile, the market for belt dryers is growing for HUBER Technology Inc.: In 2022, HUBER's US subsidiary was awarded three more belt dryer projects – the USA is now the second largest market for HUBER belt dryers. So far, there are 8 installations in the USA with a total of 9 dryers. The sizes range from the BT 10 belt dryer to the largest available size, the BT 30 belt dryer. HUBER belt dryers installed in the USA: Mooresville, North Carolina Sheboygan, Wisconsin Savannah, Georgia Springdale, Arkansas Jordan Basin, Utah La Crosse, Wisconsin Swatara, Pennsylvania Hickory, North Carolina[...]

[...]Freystadt, Germany HUBER sludge treatment solution on STP Freystadt – a concept that pays off for the operators The newly installed process chain replaces the previous system with contract dewatering and its associated problems. STP Freystadt is designed for approximately 8,000 PE. The sludge on site was previously dewatered only once a year. After the implementation of the new HUBER systems, comprising a HUBER Screw Press Q-PRESS® and a HUBER Sludge Turner SOLSTICE®, the plant operators can look forward to a smoother and easier plant operation, and the disposal costs incurred by the municipality of Freystadt will now decrease significantly. Sludge is pumped from the storage ponds and cold digesters to the dewatering building where a HUBER Screw Press Q-PRESS® 280 is installed that dewaters the sludge to approx. 24% DR. Two HUBER Screw Conveyor Ro8 T units transport the dewatered sludge into a greenhouse where the solar dryer HUBER Sludge Turner SOLSTICE® is waiting for the sludge to be dried. The new HUBER Sludge Turner SOLSTICE® 9 underwent an extensive redesign with the focus on easy maintenance, reduced wear and long lasting product life. Furthermore, all motors of the HUBER machines and the ventilators/aerators have been replaced by motors of efficiency class IE4. A new safety system has been developed in cooperation with the Technical Inspection Authority (TÜV). The installation of this system has additionally improved the aspect of work safety for the plant operators. The many beneficial details can be explained and presented best directly on site. All plant components are matched to each other. HUBER prepared a functional description on the basis of the fixed points given by the tender specification which was then discussed on site with the plant operators and the engineering office Miller from Nuremberg and adjusted accordingly. Especially the electrical control system was individually adjusted to the plant operators’ requirements.[...]

[...]HUBER TECHNOLOGY Inc. awarded for superior customer service No matter what our customers need, whether products and solutions for sewage treatment plants or for potable water objects, and no matter whether they are operators of municipal or industrial plants, HUBER TECHNOLOGY stands for game-changing innovations combined with top quality. As we want to ensure that our customers enjoy the maximum benefit from our advanced technical solutions in the long run, we take care that the machines and plants we supply are optimally used and operated on site. We therefore offer a wide range of product-supporting services on a global scale which are tailored to meet each customer's specific requirements. For us as a family-owned enterprise customer satisfaction has top priority whether in Germany or in all the markets of our globally active subsidiaries. Together with our subsidiary HUBER USA we have reached a milestone in customer orientation. HUBER TECHNOLOGY Inc. has recently been awarded by Frost & Sullivan for superior customer service. Founded in New York in 1961, Frost & Sullivan are today a renowned market research consultancy. More than 1,800 employees in more than 40 countries around the world work for Frost & Sullivan to analyse branches, markets and their development, and the industrial enterprises which are active there– constantly on the search for best-in-class companies. In 2013, both municipal authorities and industrial enterprises have selected HUBER Technology Service as an outstanding example for best customer service in the solid / liquid separation technology market. Frost & Sullivan have evaluated the customer service of companies considering several criteria: Service quality Service response times Customer value through the services supplied Service costs The results of this market analysis identified HUBER TECHNOLOGY Service as the best of all in the North American technology market of solid/liquid separation, especially in the opinion of its customers. On 9th September 2013, HUBER TECHNOLOGY Inc. was handed over the “2013 North American Customer Service Leadership Award - Solid/Liquid Separation Technology ” during an official ceremony. The award is a great honour for us and appreciation of our common efforts and achievements in the United States. We understand it also as an acknowledgement of our service strategy of customer-oriented organisation combined with the high-quality service we provide for our customers. Our special thanks to all our customers who have expressed their appreciation in this way! We provide customer-friendly service and a high quality of service to all our customers on an international scale. Do not hesitate to contact us if you are interested in or responsible for or the operating reliability, costs and increased efficiency of equipment! We will be glad to help with a comprehensive range of services[...]

[...]Wastewater and residue treatment for the fruit and vegetable processing industry Reduce disposal costs Separate solids and contaminants Separate coarse and fine grit Reduce organic matter Dewater sludge We offer well-proven and customised solutions for the specific wastewater problems in fruit and vegetable processing. Whether you need individual machines or process solutions, we are your competent partner for your wastewater treatment plant equipment needs. High solid loads, coarse materials and considerable amounts of grit are characteristic of wastewater from fruit and vegetable processing. Depending on the production, high COD loads and other dissolved pollutants also occur. We have safe and proven solutions to significantly reduce the pollution loads on site. In this way, even strict limit values are complied with and the treated wastewater can usually be discharged into the public sewer system without incurring heavy pollution charges, or even be reused for pre-washing. HUBER products and solutions for your requirement Our well-proven HUBER ROTAMAT® screens or our HUBER Multi-Rake Bar Screen RakeMax® remove coarse solids from the production process (solids and impurities). The typically high amounts of sand and soil are separated by the HUBER Longitudinal Grit Trap ROTAMAT® Ro6 . For separation of fine and ultrafine grit we use the HUBER Grit Trap GritWolf® . For the removal of colloidal substances and organic matter (COD), HUBER Dissolved Air Flotation Plants are available. The clear effluent can be discharged to the sewer or reused. The resulting residuals are thickened with HUBER machines, thus saving transport and disposal costs. The treated sludge can optionally be further processed in biogas plants. Maximum volume reduction and thus low transport and disposal costs can be achieved if dewatering systems are used, such as the HUBER Screw Presses. The numerous projects we have successfully executed in the fruit and vegetable processing industry combined with our many years of experience in wastewater treatment guarantee the reliable and efficient operation of your wastewater and/or residue treatment system! Our solutions for your challenges: COD, fat and solids reduction Reliably comply with discharge limits Reduce operating costs for wastewater treatment Reduce disposal costs for waste and sludge Water reuse Access solutions for manholes and tanks[...]

[...]Berching, Germany On the basis of the worldwide known and well-proven system of HUBER ROTAMAT® fine screens with wedge wire screen basket we developed the ultra-fine ROTAMAT® Perforated Plate Screen RPPS with perforated plate. The two-dimensional screen (perforated plate) ensures the reliable removal of hairs and fibres and avoids that: fibres and hairs hinder the stable operation of membrane plants and increase maintenance requirements, these materials tend to entangle on the membranes and lead to reduced membrane plant efficiency these products form tresses in the wastewater treatment plant, this would impair oxygen supply to the aeration system with the result of problems occurring in the sludge treatment line These screens with a two-dimensional perforated plate rely on the unique system of HUBER ROTAMAT® machines which combines screening, washing, transport, compaction and dewatering in a single unit. Additional advantages, such as shear-force resistant and wear resistant screen surface cleaning and a high frequency of screen surface cleaning per minute, guarantee maximum efficiency and operating reliability. Perforated plate for two-dimensional screenings is primarily used for screens with apertures > 1 mm. For finer screening < 1 mm we use the newly developed ROTAMAT® Membrane Screen RoMem with filter mesh. HUBER ROTAMAT® Perforated Plate Screen RPPS units are equipped with 1 to 5 mm perforated plate. The selection of the mesh size or perforation depends on to what extent hairs and fibres must be removed to meet the specific requirements of the downstream clarification systems. Two-dimensional perforated plate screens achieve a high removal of hairs and fibres, i.e. two to four times the amount of solids are removed than one-dimensional screens are able to separate. The significantly increased separation efficiency is accompanied by a high level of screen surface blinding and requires larger dimensioning of the fine screens compared to other commonly known wedge wire screens. Conventionally, a screen basket with bigger external dimensions is used to achieve larger dimensioning with the result of significantly increased investment costs and even building costs as a bigger channel is required. We have solved this problem with our ROTAMAT® Perforated Plate Screen RPPS-Star: The perforated plate of the screen basket is folded in axial direction like an accordion. The zig-zag folds form the star-shaped screen basket (RPPS-Star). This increases the screen basket surface by about 30 % with still the same nominal diameter. The filter drum of the ROTAMAT® Perforated Plate Screen RPPS-Star is cleaned by a water jet spraying against wastewater flow direction. This ensures that fibres and screenings are reliable washed from the drum surface and removed by the centrally arranged conveying screw. With this innovation we have made a ’traditional’ machine fit for the future. We are well prepared for higher future requirements related to separation efficiency and hydraulic throughput. The extensive experience gathered from real size installations is reflected in the continuous development and optimisation of our fine screens. Compared to one-dimensional wedge wire screens, the two-dimensional perforated plate screen achieves a significantly higher separation efficiency. Due to its star-shaped screen drum the ROTAMAT® Perforated Plate Screen RPPS-Star has a by about 30 % larger screening surface, with the same small nominal diameter and with the result of a significantly increased hydraulic throughput capacity.[...]

[...]Bitterfeld Wolfen, Sachsen-Anhalt, Germany The sewage treatment plant Bitterfeld-Wolfen clarifies the municipal wastewater of the sewage treatment association "Westliche Mulde", the industrial wastewaters of the companies P-D-ChemiePark Bitterfeld-Wolfen and Industriepark BAYER Bitterfeld, and the groundwater of MDSE GmbH (large-scale ecological project of the regional authority for the release of soil remediation responsibility of the German Federal Land Saxony-Anhalt). The total capacity of the sewage treatment plant is 586.000 PE (population equivalent). The main wastewater clarification takes place in several separate pretreatment stages (mechanical, chemical-physical) and in one common aerobic biological treatment stage. To produce biogas, a separate wastewater flow from methyl cellulose production is treated in anaerobic reactors together with a partial flow of the municipal wastewater which is heated by heat exchangers. The municipal wastewater is prescreened in our ROTAMAT® Membrane Screen RoMem Pro 1600 to protect the heat exchangers. The RoMem screen is equipped with a 1.0 mm square mesh. The two-dimensional structure of this mesh ensures that a very high degree of fibre and hair retention is achieved. The RoMem Pro version is a further development of the standard system. The well-proven concept of HUBER ROTAMAT® machines excels especially for its drum-shaped screen basket and installation angle. The latter allows to combine several functions in one unit (screening, washing, removal, compaction, dewatering). For applications with increased throughput requirements HUBER has developed the RoMem Pro version which makes it possible to continuously wet a larger area of the screen surface and thus significantly increase throughput capacity compared to the standard design. A smaller design is therefore sufficient to achieve the same results but with reduced space requirements, construction costs, investment costs and spray water demand. The simple design of the Pro version also permits easy retrofitting of existing screens so that an increase in throughput capacity can be achieved without the need for any structural alterations of the channel. Even if the backup at the outlet end is high the Pro design guarantees the safe transport of screenings and thus ensures a reliable and safe plant operation even under difficult conditions. Like the folded perforated plate of the RPPS Star screen, also this Pro version represents a further development of the well-known and well-proven system of HUBER ROTAMAT® screens (Ro 2, RPPS, RoMem): The new innovative design makes it possible to even better adjust the machines to individual requirements and conditions. It is even more easier now to find the most optimally suitable solution for different wastewater qualities and installation conditions.[...]

[...]Over the years, the screw presses of the Q-PRESS ® series have become one of the most successful HUBER products. The latest leap in development took place with significantly more wear-resistant and powerful scraper lips and matching, higher-torque gearboxes with reduced electrical energy consumption. Current further development: significantly changed filter geometry The two long-proven sizes 280 and 440.2 will in future be equipped with a significantly increased open filter surface. In order to increase the open filter surface, the first, relatively coarse screen section in the inlet area will be significantly lengthened, and the middle, somewhat finer screen section will in future be equipped with a wider bar spacing. In this way, more than 30% more open filter area can be provided in the throughput-relevant first half of the filter than before. The enlarged open screen area enables a higher sludge throughput or, with unchanged throughput, a reduced screw speed and thus a higher dewatering result. The wear-resistant wedge wire filters, proven over many years, will continue to be used. All new HUBER Screw Press Q-PRESS ® units will be equipped with the new filter geometry. Less operator intervention, better dewatering results A new control mode of the Q-PRESS ® shows that further developments and improved operator benefits at HUBER are not necessarily only achieved with stainless steel: Previously, the filtration pressure in the filter basket was decisive for the automatic adjustment of the screw press shaft speed. If the filtration pressure was too high, the speed was increased to avoid soaking of the press cake and to reduce the filtrate load. If the filtration pressure was too low, the shaft speed was automatically reduced to ensure sufficient filling of the press. This mode of operation was and is the basis for trouble-free, unattended operation. New: extension of the control mode for maximum dewatering performance What is new now is an extension of the proven control mode with the focus on maintaining the maximum degree of dewatering. As a control parameter, the engine torque now also functions as a measure of the dryness of the sludge cake. If the torque or the degree of dewatering is too low, the screw shaft slows down automatically. Because the torque has significantly lower variances than the filtration pressure, which is directly influenced by the floc quality, the press can be operated with significantly lower variances of the shaft speed – ideally even with a largely constant shaft speed. Experience shows that the pressure level in the press then drops, which automatically reduces the shaft speed and the torque or the degree of dewatering subsequently remains stable in the maximum range. Automatic fine adjustment for ideal dewatering result The fine adjustment of the press with the aim of achieving an ideal dewatering result, which previously depended on the time and experience of the operator, is now also carried out automatically and unattended. New control mode can also be retrofitted The control mode extended by the torque can be retrofitted to HUBER Screw Press Q-PRESS ® units and HUBER control systems back to year of manufacture 2018. The significantly smoother press operation with more stable dewatering degrees and less operator intervention is therefore not only reserved for new customers.[...]

[...]Wendelstein, Germany Since 2008, the ZV zur Abwasserbeseitigung im unteren Schwarzachtal (Lower Schwarzach Valley Sewage Treatment Association) has been retrofitting existing relief structures with screening systems to separate floating and coarse materials. These retrofits contribute significantly to greatly improving the discharge quality of rainwater from the combined sewer system into the receiving water. Installation of a screening plant at the Röthenbacher Straße stormwater tank with overflow In the stormwater tank with overflow at Röthenbacher Straße in Wendelstein, just outside Nuremberg, a screening plant had to be installed in front of an existing overflow sill. The system had to be dimensioned so that the entire discharge volume of 2,234 l/s could be reliably treated with a required screen aperture of 6 mm. The very limited permissible backwater levels during system operation also had to be taken into account for dimensioning. HUBER Storm Screen ROTAMAT ® RoK2 meets all requirements The HUBER Storm Screen ROTAMAT® RoK2, size 700, was able to meet all these requirements without restriction. Decision in favour of proven technology Based on the positive operational, maintenance and separation performance experiences gained from the previous four screen installations, the decision was made to purchase another HUBER Storm Screen ROTAMAT® RoK2. HUBER SE would like to thank the client, the Lower Schwarzach Valley Sewage Treatment Association, the head of the wastewater treatment plant, Mr Heiling, and the engineering firm Christofori und Partner from Heilsbronn, which was responsible for planning, tendering and construction supervision, for their trust and excellent, constructive and smooth cooperation.[...]