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[...]Australia & Indonesia A personal approach to customers, technical advice and reliable service are key factors in the long-term operation of systems and the satisfaction of our customers. That is why HUBER invests in regular service consultant tours worldwide to support operators directly on site, identify opportunities for optimization and strengthen personal interaction. As part of these service activities, our HUBER service consultant Martin Burger spent three weeks in Indonesia and Australia from mid-May to early June 2026. Together with the regional HUBER partners, he visited numerous existing customers, inspected systems, trained operators and discussed service and maintenance issues. Three intensive days in Indonesia The service consultant tour in Indonesia was coordinated by HUBER Technology Asia-Pacific Pte Ltd in Singapore. HUBER has been working closely with its local partner, PT. Grahadika Adipurnajasa, for many years. The tour began in the Indonesian capital, Jakarta. During the customer visits, Martin Burger was accompanied by Fabian Kana from HUBER Service Malaysia, as well as Grahadika staff members Jaya and Momo. The tour included visits to various facilities in the Greater Jakarta area. Among the sites visited were Soekarno Hatta, Sumur Batu, Cideng and Cikokol, as well as several HUBER Coarse Screen TrashMax® installations in Jati Pinggir. A key focus was the training of operational staff. At the Soekarno Hatta plant, staff received comprehensive training in the operation and maintenance of the installed HUBER machinery. The direct exchange enabled questions to be clarified immediately and provided valuable guidance on safe plant operation. Working alongside Hydroflux with customers in Australia Following the first service consultant tour in 2023, Martin Burger was back on the road in Australia to visit customers alongside HUBER’s long-standing partner, Hydroflux Pty Ltd, and to support them with service and maintenance issues. Hydroflux, headquartered in Sydney, is one of Australia’s leading companies in the field of water and wastewater technology. Throughout the tour, Martin Burger was accompanied by Stewart Harris, who manages HUBER services at Hydroflux, from customer advice and spare parts and service quotations to repairs and on-site service calls. The team spent the first week in the Brisbane region of Queensland. Amongst other sites, they visited the wastewater treatment works at Noosa, Kawana, Maroochydore, Bribie Island, Luggage Point, Karana Downs and Lowood, as well as major industrial companies in the region. Discussions focused on plant optimization as well as service and maintenance issues. Customers particularly appreciated the joint visit by Hydroflux and a service consultant from Germany. Many operators took the opportunity to discuss technical issues directly with the experts. Further highlights included attending OZWATER in Brisbane, Australia’s largest trade fair for water and wastewater technology, and a visit to the famous Nepalese Peace Pagoda with Hydroflux colleagues Chee Terng Lee and Daniel Potente. The structure is one of Brisbane’s most significant cultural landmarks. There is a special story behind the bell installed there: Traditionally, Hydroflux rings it whenever a major contract is secured. It was last rung following the successful signing of the contract for the ‘Riverstone’ project involving a HUBER Belt Dryer BT. Weekend in Sydney Martin Burger spent the weekend in Sydney. During his stay, the internationally renowned Vivid Sydney Festival was taking place there – Australia’s largest festival of light, music, ideas and cuisine. The spectacular light installations along the harbor and at the world-famous Sydney Opera House were particularly impressive. The combination of modern light art and a unique backdrop made the visit a special experience. The following week saw a continuation of customer visits in the Sydney area, including to the Farley STP, Tanilba Bay, Burwood Beach, Paxton, Goulburn, Bowral STP and Moss Vale STP sites. Here, too, it was clear just how much customers appreciate the joint presence of Hydroflux and HUBER. Many operators took the opportunity to engage in in-depth technical discussions and consultations directly on site. Another key focus was the consultation at the West Camden sewage treatment works. Here, opportunities for plant optimization and future service activities were discussed. Personal service as a key to success The service consultant tour has once again demonstrated the great importance of personal contact with customers and operators. The combination of local support from HUBER’s long-standing partners and direct technical discussions with a service consultant from Germany was very well received in both Indonesia and Australia. The on-site discussions strengthened existing customer relationships, highlighted potential for optimization and provided valuable impetus for future projects. At the same time, the visits highlighted the added value of close cooperation between HUBER, its local partners and the plant operators. The tour underlines the importance of a strong international service network and the HUBER Global Service Team for the long-term support of our customers. Plans are already in place for the next service consultant tour of Australia and New Zealand. Visit to the Nepalese Peace Pagoda together with the Hydroflux team The Sydney Opera House during the Vivid Sydney Festival During a customer visit in the Greater Sydney area[...]

[...]The HUBER Sludge Acceptance Plant ROTAMAT® Ro3.1 is used for mechanical treatment of septic sludge. Effective retention of floating and suspended material Ensured complete automatic cleaning With optional screenings washing and pressing stages Suitable for all types of septic sludge Reliable separation of all disturbing material Dependable and reliable in operation Integration with HUBER Fine Screen ROTAMAT® Ro1 The HUBER Sludge Acceptance Plant ROTAMAT® Ro3.1 is used for mechanical treatment of septic sludge. For this task, HUBER Fine Screen ROTAMAT® Ro1 is installed in a tank. Design and Function HUBER Sludge Acceptance Plant ROTAMAT® Ro3.1 with ROTAMAT® Fine Screen The durable and high-performance Ro3.1 version has become one of the most popular system of its kind. Its exceptional design and engineering ensure reliable operation – day in and day out, year after year. Additionally, a heated and insulated version is available as an option. The core component of the HUBER Sludge Acceptance Plant ROTAMAT® Ro3.1 is the highly reliable HUBER Fine Screen ROTAMAT® Ro1. Known for its high throughput, excellent separation efficiency, and low head loss, this screen effectively retains floating and suspended materials in the screen basket. A standout feature is its integrated screenings press, which offers numerous benefits for efficient operation. The ROTAMAT® Fine Screen is extremely sturdy, able to deal with rocks and grit, and entirely made of stainless steel. It is fully self-cleansing as its rake tines fully engage the basket bars. Please find more detailed information at our separate product detail page for HUBER Fine Screen ROTAMAT® Ro1 .[...]

[...]Sludge Acceptance Plant with Grit Trap and Grit Classifier Well-proven mechanical pre-treatment components combined within one plant With unaerated grit trap and integrated grit classifying screw Suitable for all types of septic sludge Reliable separation of all disturbing material Dependable and reliable in operation This type of plant is used for complete separation of screenings and grit. Well-proven mechanical pre-treatment components are combined within the HUBER Sludge Acceptance Plant ROTAMAT® Ro3.3. It consists of: Fine screen with integrated screenings press Unaerated grit trap with grit classifier Due to integration of all components in a single tank it is a very compact plant and odor annoyance is prevented. Complete treatment of the septic sludge is performed within a single unit. Key Features and Benefits of the HUBER Sludge Acceptance Plant ROTAMAT® Ro3.3 The HUBER Sludge Acceptance Plant ROTAMAT® Ro3.3 is an advanced solution designed for the complete separation of screenings and grit in wastewater treatment systems, particularly for handling s eptic sludge. The Ro3.3 combines trusted mechanical pre-treatment components to achieve optimal sludge treatment. It ensures that both screenings and grit are efficiently removed from the wastewater, preventing operational issues downstream. The system features an unaerated grit trap that effectively separates grit from the sludge, and an integrated grit classifying screw that further processes the grit. This combination ensures that both coarse grit and finer materials are effectively removed for further treatment or disposal. The plant is designed to handle any type of septic sludge , making it versatile for various types of treatment plants. It efficiently deals with the diverse characteristics of septic sludge and separates the unwanted materials, such as grit and screenings. The Ro3.3 offers reliable separation of all unwanted disturbing materials , including screenings, grit, and other debris. This ensures that the treated sludge is free from contaminants and suitable for further processing. The plant is designed to be dependable and reliable in operation, ensuring that it performs consistently with minimal maintenance. It is built to handle high solids loads and is engineered for long-term durability. The system includes a fine screen with an integrated screenings press to ensure that solids are effectively separated from the wastewater. The press helps reduce the volume of the screenings, making them easier to dispose of or further treat. By integrating all components into a single tank, the system is highly compact, effectively preventing odor issues. The entire treatment of the septic sludge is carried out within one unit, ensuring streamlined and efficient operation.[...]

[...]Rotating high-performance screening drum for extreme applications Efficient and reliable coarse material separation High solids throughput even with problematic material Forced guided material transport For any type of septic sludge Reliable separation of all disturbing material Dependable and reliable in operation The HUBER Sludge Acceptance Plant RotaShield® is a high-performance solution designed specifically for coarse material separation in septic sludge treatment. It utilizes a rotating high-performance screening drum to effectively separate coarse materials from septic sludge, even in extreme applications. Design and Function The rotating high-performance screening drum is designed for demanding applications, offering reliable, clog-free solids transport through forced material guidance within the drum. This ensures high throughput, even with challenging materials such as wet wipes, grease, and stones. The solids are then washed and dewatered using a subsequent HUBER Wash Press WAP® for efficient screenings treatment. During the pre-washing and homogenization of the raw material within the HUBER Sludge Acceptance Plant, wash water is added to facilitate the process. The perforated plate of the wash drum retains particles larger than the perforations, which are then delivered for further treatment. As only coarse material larger than the perforation size is separated, the volume of the resulting residues is significantly reduced. As an option, grit material can then be treated further in the downstream HUBER Coanda Grit Washer RoSF4 . The coarse material can then be further separated into a mineral and organic fraction by means of a coarse material washer. With flexible feeding options, space-saving design, and efficient vehicle emptying, the RotaShield® is ideal for wastewater treatment plants seeking reliable, high-performance solutions. Key Features and Benefits of the HUBER Sludge Acceptance Plant RotaShield®: Rotating High-Performance Screening Drum The rotating drum is designed to handle the most challenging sludge materials, ensuring efficient and reliable separation of coarse materials, such as large debris, grit, and other contaminants. Efficient and Reliable Coarse Material Separation The system is built to separate coarse materials from septic sludge with high efficiency. This ensures that the sludge is properly treated and free from larger materials that could cause issues downstream in the treatment process. High Solids Throughput Even with problematic materials that are typically difficult to process, the RotaShield® delivers high solids throughput, ensuring that the plant can handle large volumes of septic sludge without compromising performance. Forced Guided Material Transport The design of the plant includes forced guided material transport, which helps to direct the flow of sludge and ensure consistent material separation. This mechanism minimizes blockages and ensures continuous, efficient operation. Suitable for Any Type of Septic Sludge The HUBER Sludge Acceptance Plant RotaShield® is versatile and capable of handling any type of septic sludge, making it suitable for a variety of treatment applications in wastewater treatment plants. Reliable Separation of All Disturbing Material The system offers reliable separation of all disturbing materials, ensuring that only clean, processed sludge is passed on for further treatment or disposal. Dependable and Reliable Operation Designed for dependable and reliable operation, the RotaShield® provides long-term, high-performance treatment with minimal maintenance, making it a valuable asset in wastewater treatment facilities. Benefits of the HUBER Sludge Acceptance Plant RotaShield®: High Solids Throughput Handles problematic materials such as rags, wet wipes, grease, and stones efficiently. High solids throughput of up to 6 t/hr (6 m³/h), ensuring that even large volumes of material can be processed without compromising performance. High Hydraulic Capacity The system operates effectively even with high solids contents, ensuring consistent throughput and reliable operation. Trouble-Free Operation No auger is used to transport the screened material, reducing the risk of blockages or operational issues. The system is designed for minimal wear and requires less maintenance than traditional systems with augers. Defined Separation Size The plant features two-dimensional screening, allowing for a defined separation size of materials, ranging from 3 to 10 mm, which ensures effective separation of coarse materials. Flexible Feeding Options Feeding can be done via a conveyor, launder channel, or pressure line, providing flexibility to integrate the system into various setups. Efficient and Compact Design The compact, space-saving design allows for easy installation in various treatment plant layouts. The unit is completely encased, preventing odor issues and ensuring that it can be placed in areas where space is limited. Minimal Wear & Low Maintenance The design minimizes wear and requires less maintenance compared to traditional systems, ensuring long-term reliability. Low Energy Demand The system has a low energy demand, making it an eco-friendly and cost-effective option for wastewater treatment plants. Corrosion Resistance The plant is constructed from high corrosion-resistant materials, ensuring durability and extended service life, even in harsh environments High Separation Efficiency The 3 to 10 mm separation size provides efficient separation of coarse material, improving overall system performance. Optimized for Vehicle Emptying Short tanker vehicle emptying times and the optional simultaneous emptying of multiple vehicles make the system convenient for handling large volumes of sludge with minimal downtime. Screened Wastewater Reuse The screened wastewater can be used as wash water, adding an extra layer of efficiency to the system and reducing the need for additional water supply.[...]

[...]Efficient. Flexible. Innovative. Solar sewage sludge dryer running on the ground without a concrete wall Innovative sludge turning technology for optimal drying Simple and quick construction of the entire plant Waste to product: sludge becomes dry granulate Worldwide proven process Fully automated operation HUBER solar and regenerative sludge drying Solar regenerative drying (SRT) is a process that uses solar energy to dry dewatered sewage sludge in a greenhouse. This process turns the sludge into a free-flowing, easy-to-handle granulate. Reduced disposal costs Less environmentally harmful transport of sludge by road Clean and safe disposal Plant designs and equipment Loading and unloading of dewatered sewage sludge automatically or with a wheel loader Loading and unloading on the same or opposite gable ends Sophisticated safety features Optimal climate control with sensors and fans Control of the drying plant Clean, safe and fully automated. The plant operates fully automatically, ensuring maximum efficiency with minimal staff involvement. Coordinated, continuously operating machinery Self-sufficient, fully automated process The system control provides convenient access to all key information and intelligent control technology, including: Visual representation of the sludge bed height, temperature, moisture content and required motor torque, displayed as a graph across the length of the hall Operation via the on-site HMI panel or via a mirroring function to on-site devices, such as the operator’s mobile phone or tablet Configuration, saving and loading of parameter sets (recipes) for changing requirements Ground-level system: The HUBER Sludge Turner SOLSTICE® FloorRunner The HUBER SRT solar and regenerative drying system has been operating successfully for decades. In recent years, HUBER SE has become the global market leader in solar sewage sludge drying, offering a wide range of drying lines and sludge turners. The HUBER Sludge Turner SOLSTICE® FloorRunner offers the advantage of simple structural installation of the solar drying plant. This is because the interface between the machine and the structure is a flat concrete surface. The running surface of the wheels and the sludge bed are at the same level, so an additional wall for the wheels to run on is not necessary. Standardised steel angles are used to provide guidance and to edge the sludge bed. Constructing a plant with the HUBER Sludge Turner SOLSTICE® FloorRunner is therefore cost-effective, simple and quick. Precise installation of the sludge turning machine significantly reduces maintenance requirements and wear during operation. In addition to the FloorRunner, which runs directly on the floor, HUBER also offers a variant in which the machine runs along concrete walls. HUBER supports customers with specifications, examples and testing options for the appropriate construction of the walls. Advantages of the HUBER Sludge Turner This well-proven machine is made entirely of stainless steel and consists of a rotating double shovel mounted on a moving bridge structure. Thanks to its unique design, the construction offers many advantages: Transporting, granulating, turning, accumulating or discharging sludge in a single operation Homogeneous and rapid drying thanks to high mixing and aeration performance Options available: A granulation blade is available for processing particularly sticky sludge, and the machine can be enclosed to prevent dust dispersion. Advantages of the unique operating principle with a rotating double shovel: Rapid drying and easy mechanical processing: Mixing dry sludge back into wet sludge creates an open-pored, rapidly granulating sludge that is easy to handle and releases water quickly. The lower water content resulting from backmixing leads to reduced biological activity. Achieving the desired degree of dryness: Through parameterisation, different areas of the drying hall can be processed separately. Dust and abrasion reduction: Wet sludge can be deposited in dry areas of the sludge bed to remoisten any over-dried areas if necessary. Dry sludge can be transported to the discharge point without further mechanical stress. Options for plant design: Sludge feeding and discharge can be selected on opposite sides or on the same side of the drying bed, as required[...]

[...]Continuous screening, dewatering and transport of coarse material in one operation Removal of coarse material from municipal sludge and industrial process water The STRAINPRESS® is a horizontal cylindrical coarse material separator which consists of inlet and screening zone, press zone, and a discharge section. It is used for liquid sludge screening or filtration of service or process water under pressure. The system does not need any wash water as backwashing of the screen is unnecessary. The perforation and design of the screw shaft are individually adjusted to optimally suit specific requirements. Design and Function A pump forces the unscreened liquid through the screening zone and delivers the screened liquid to subsequent processing stages. Coarse material trapped on the cylindrical screen is removed by a coaxial screw, which then moves it to the press zone for thorough compaction and dewatering. The screw activates only when pressure sensors detect a differential pressure resulting from screen surface clogging. The compacted material is then forced through a gap surrounding a hydraulically operated pressure cone, which partially closes the pipe end to create counterpressure. This counterpressure is automatically adjusted, inversely proportional to the load on the screw motor, to ensure efficient operation. Easy maintenance The complete casing, perforated plate and screw shaft of the HUBER Sludgecleaner STRAINPRESS® are made of corrosion-resistant 1.4307 (AISI 304L) stainless steel. The screw flights are reinforced with tungsten carbide for wear protection. The machine can be split in the middle and one half of the machine moved for maintenance. This design allows for the replacement of the perforated plate, enabling the installation of a screen insert with a different perforation size as needed. Applications The STRAINPRESS® is used for liquid sludge screening or filtration of service or process water under pressure. Examples for coarse material separation from: Primary sludge Secondary sludge Mixed sludge Septic sludge Floating sludge Grease sludge Digested sludge Production waste water and industrial sludges Circulation and process water The Benefits of the HUBER Sludgecleaner STRAINPRESS® Pressure-fed (inline) system for process water and all types of sludge including highly viscous and grease containing sludge Enhances the operational reliability of downstream sludge treatment systems, including thickening, disinfection, stabilization, dewatering, and drying, while reducing maintenance demands For various applications perforations of 2 to 10 mm, different screw geometries and different material qualities are available Pressure-dependent control of the screw shaft combined with the pressure cone regulation system allows for unattended automatic operation even under fluctuating flow rates Dewatering of separated coarse material to approx. 40% DR 2 sizes for throughput capacities up to 880 GPM / 200 m³/h More than 1000 successful installations worldwide Reliable cleaning of the screen without any wash water[...]

[...]By generating electricity and heat from digester gas, operators of wastewater treatment plants with anaerobic sludge stabilisation can generate energy themselves, and thus significantly reduce the purchase of external energy and consistently and sustainably lower their operating costs. Under suitable conditions, by feeding external and organic-rich waste (co-substrates) into the digester, gas and thus energy production can even be increased to the point of energy self-sufficiency. Typically, liquid waste from the food industry or catering (such as grease separator contents or flotate sludge) is delivered, processed and fed into the digester. Sustainably improving digestion processes and gas production 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. Typical materials and coarse solids are: Fibrous materials, textiles Stones, metals Plastics Possible effects of insufficient removal of impurities are: Wear on pumps and dewatering units Blockages in pipeline installations Blockages, floating ceilings and deposits in the fermenter Reduced or unstable gas yields Restrictions in the treatment of filtrate water and digested sludge Proven for over 20 years: the HUBER Sludgecleaner STRAINPRESS® For the removal of contaminants from sludge, the HUBER Sludgecleaner STRAINPRESS® has proven its worth for more than 20 years. The STRAINPRESS® is a horizontal cylindrical screen for continuous separation and dewatering of foreign matter. It is divided into an inlet and screening zone plus a compaction and discharge zone. A pump conveys the unscreened sludge through the screening zone and presses the screened sludge for further treatment. The coarse material retained on the cylindrical screen is stripped off by a coaxial screw and pushed through the compaction zone where the material is pressed and dewatered. The screw operates only when the pressure sensors detect a differential pressure caused by screen surface blinding. The foreign matter is pushed through a gap around a hydraulically actuated jam cone, which partially closes the end of the tube and builds up counterpressure. The counterpressure of the cone is automatically regulated inversely proportional to the load of the screw drive. Individual adaptation for throughputs from 5 to 150 m³/h raw sludge Proven options such as screen perforation sizes between 2 mm and 10 mm as well as individual designs of the compaction zones allow the machine to be adapted to different properties of the raw sludge and the screenings. Experience has shown that the HUBER coarse material separator can achieve specific separation capacities of 1 to 10 kg screenings per m³ raw sludge (dewatered to approx. 40%). Due to pump feeding and the closed screening process, even non-hygienised sludges and substrates can be treated without health hazards for the operating personnel. Complete removal of coarse material for significantly increased operational safety Often alternatively used macerators only macerate coarse material – inert and abrasive contaminants as well as fibres, however, remain in the substrate and can cause the negative effects mentioned above. In contrast, the HUBER Sludgecleaner STRAINPRESS® removes the coarse material completely from the process, thus ensuring significantly higher operational reliability in the downstream process stages.[...]

[...]Bayreuth, Germany and Lomianki, Poland HUBER solar sludge drying system with sludge feeding and removal on the same gable end – the feed comes back as dry sludge HUBER SE has continued the success story of its solar sludge drying system in 2014. Like on many other sites, whether in Europe or overseas, the SRT system convinced also the customer at Bayreuth in Bavaria and was the winner of the tender competition. The decisive point in favour of the HUBER SRT was that its concept ensured clever use of the scarce space on site. Feeding of the press/wet sludge and removal of the dry granulate takes place on the same gable end of the greenhouse. This allows to realize a sludge treatment solution with compact installation of all plant equipment in one place. Such a solution also minimises space demand and soil sealing. Furthermore, it is not necessary to build roads and turning round areas. The SRT system with its 'one-way-road' design is also the winner of the tender for the project Lomianki in Poland near Warsaw. This project comprises of two SRT 11 drying lines on an area of approx. 2,000 m², while five drying lines of size SRT 11 are installed at Bayreuth on an area of nearly 7,000 m². Already several years ago HUBER SE successfully tested sludge feeding and removal at the same gable end with the SRT sludge turner. The concept was for the first time implemented in 2008, on STW Marktbergel. The double-shovel sludge turner transports the sludge through the greenhouse while the sludge is drying. Pasty, biologically active press cake becomes a stable grainy product. The fully automatic climate control system developed by HUBER ensures the optimal use of solar energy and maximises water evaporation. The dry material is generated on the greenhouse end opposite to where the wet sludge is fed. Due to its special design the HUBER SRT sludge turner is able to take the dry sludge into one of its two shovels and transport it back. The shovels are mounted on a special stainless steel half shell, the so-called 'half-pipe'. The dry grainy product is transported back inside the shovel in a 'piggypack' manner. At Lomianki the dry sludge, the volume of which has been reduced to a minimum by drying, falls into a storage bunker from where it can be loaded onto a truck, whereby the 'storage bunker' is actually just a height difference in the drying surface. On the site in Bayreuth the dry material falls into a screw shaft and is removed automatically. Also material discharge is automated. Truck loading times can be minimised to 30 minutes. We are sure the success of the SRT will continue also in 2015. Customers around the world are interested in sustainable, economic and easy technical solutions that are able to make their sewage sludge 'waste' a valuable resource.[...]

[...]Self-cleaning screen for efficient solids retention in stormwater tanks and overflows Efficient solids separation Continuous automatic screen cleaning Defined solids removal For discharges with limited upstream head possibilities Robust, low-maintenance stainless steel design During and after storm events, significant amounts of debris are released into streams, rivers, and lakes through stormwater overflows from combined and sanitary sewer systems. Even with scum baffles installed, these measures often prove insufficient to prevent pollution. Unsightly items such as sanitary products, toilet paper, feces, and plastic materials not only harm the environment but also lead to substantial cleaning and disposal costs. Efforts to improve our collection and drainage systems have been intensified. Particularly vulnerable receiving water bodies and nature conservation areas necessitate more comprehensive and targeted measures for effective stormwater treatment, ensuring their ecological preservation and sustainability. Design and Function The ROTAMAT® RoK1 screen is an ideal solution for solids retention at stormwater discharges, suitable for both new installations and refurbishments. This screen is part of a group of fine screens engineered to handle high flow rates with exceptionally low hydraulic resistance. Its two-dimensional screening design ensures excellent solids retention, while the automatic and gentle cleaning of the perforated plate maintains optimal performance and efficiency. The RoK1 screens are installed horizontally on the downstream side of overflow weirs. A screw flight is mounted within a half-cylinder made of perforated plate. As stormwater flows through the horizontal perforated half-pipe, solids are effectively retained. A rotating screw, equipped with a brush on its flights, moves within the semi-circular screen trough. This action not only cleans the screen but also gently pushes the retained screenings toward the end of the trough for efficient disposal. At the end of the trough, the screenings are either returned to the sewer and transported to the wastewater treatment plant or removed via a cross conveyor for further disposal. During storm conditions, the screen automatically activates and operates fully autonomously, ensuring continuous and efficient performance without the need for manual intervention. Installation conditions The RoK1 screen can be installed on either the left or right side of the weir overflow, with standard inclination angles of 0° and 60°. To accommodate varying structural and local hydraulic conditions, the screen is designed for flexible installation into existing buildings. The full screen surface is available from the start of a storm event, minimizing hydraulic resistance and ensuring very high solids retention throughout the process. Applications The HUBER ROTAMAT® Screens RoK1 are versatile and can be used in a variety of applications within the combined sewage sector. To minimize maintenance, it is generally not necessary to remove screenings from the structure. Instead, the screenings remain in the sewer or tank and are introduced into the wastewater treatment plant after the storm event. For high solids loads and/or challenging flow conditions, the HUBER Storm Screen ROTAMAT® RoK1 can be equipped with a cross conveyor, transforming it into the HUBER Storm Screen ROTAMAT® RoK1 TS. The screw conveyor returns the separated screenings to the wastewater flow at a designated point. Alternatively, if preferred by the customer, the screenings can be discharged into a container using the cross conveyor. The Benefits of the HUBER Storm Screen ROTAMAT® RoK1 The screen is installed behind the weir overflow. This design results in the following favorable benefits: Optimal solids retention by means of two-dimensional screening (perforated plate) Low hydraulic resistance due to installation at weir height The perfect solution for discharges with limited upstream head possibilities Defined screenings discharge Designed for seamless retrofitting into existing structures Option for full submersion of the screen Available with cross conveyor as RoK1 TS if required[...]

[...]Self-cleaning screen for effective solids retention in stormwater tanks and overflows Efficient solids separation Continuous automatic screen cleaning Highly adaptable to various systems Ideal for integration with water retention elements Durable, low-maintenance stainless steel construction During and after storm events, significant amounts of debris are released into streams, rivers, and lakes through stormwater overflows from combined and sanitary sewer systems. Even with scum baffles in place, these measures often fail to prevent such pollution. Items like sanitary products, toilet paper, feces, and plastic materials not only create an eyesore but also result in substantial cleanup and disposal expenses. Efforts to improve our collection and drainage systems have been intensified. Particularly vulnerable receiving water bodies and nature conservation areas demand more comprehensive measures for stormwater treatment to safeguard their ecological integrity. Design and Function The HUBER Storm Screen ROTAMAT® RoK2 is an optimal solution for addressing this challenge, whether for new installations or refurbishment projects. This screen is part of a class of fine screens specifically engineered to handle high flow rates with minimal hydraulic resistance. Its two-dimensional screening technology ensures exceptional solids retention while providing automatic and gentle cleaning of the perforated plate, ensuring reliable and efficient operation. The HUBER Storm Screen ROTAMAT® RoK2 is horizontally installed upstream of overflow weirs. It features a screw flight mounted within a half-cylinder made of perforated plate. As stormwater passes through the horizontal perforated half-pipe, solids are effectively retained. The integrated screw, equipped with a brush on its flights, rotates within the semicircular screen trough, ensuring continuous cleaning of the screen. This process gently conveys the separated solids toward a lateral discharge point, maintaining efficient operation and preventing blockages. The screenings are retained on the polluted water side of the screen, where they are carried away with the wastewater flow. During storm events, the screen activates automatically and operates in a fully automated mode, ensuring efficient and reliable performance without manual intervention. The HUBER Storm Screen ROTAMAT® RoK2 offers flexible installation options, allowing it to be positioned on either the left or right side of the weir overflow to accommodate varying local hydraulic conditions. Even at low flow rates, the incoming water evenly engages the full length of the screen basket. This ensures gentle removal of screenings without blockages, achieving high separation efficiency while minimizing head loss through its mechanical design. Applications The HUBER Storm Screen ROTAMAT® RoK2 is designed for versatile use in the combined sewage sector. To minimize maintenance requirements, screenings are not removed from the structure. Instead, they remain in the sewer or tank and are directed to the wastewater treatment plant after the storm event, simplifying operations and reducing maintenance demands. Benefits of the HUBER Storm Screen ROTAMAT® RoK2 The screen is installed in front of the weir overflow, providing the following key benefits: Optimal solids retention by means of two-dimensional screening (perforated plate) Screenings remain on the polluted water side No downstream impact on the screen efficiency Designed for easy retrofitting into existing structures without complications The perfect solution for discharges with limited upstream head possibilities Optional emergency overflow[...]