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[...]Parsberg, Germany The town of Parsberg lies in the heart of the Bavarian Jura between Nuremberg and Regensburg. It is particularly popular with tourists as a local recreation area and thanks to its perfect connection to the Five Rivers Cycle Route. The Parsberg sewage treatment plant is located in the valley alongside the Schwarze Laber river. It has a mechanical, biological and chemical treatment stage and is designed for up to 13,300 PE. A two-storey building was specifically constructed on the hilly terrain for local sludge dewatering, which was a conscious decision by the town of Parsberg. New building to optimise sludge dewatering The decision to construct a new sludge dewatering and storage facility near the existing sludge storage tank was made because the load on the sewage treatment plant had steadily increased by 10 to 15%, and the dewatering carried out by a contractor was costly. Sludge dewatering had been carried out on a quarterly basis until then. This resulted in large quantities of stored sewage sludge and filtrate building up in excess every four months. The large quantity that accumulated in a very short time could not be fully returned to the system and had to be disposed of at additional cost. New technology, new buildings At the end of 2022, the presentation of the new sludge dewatering building to the city council marked the start of construction at the Parsberg sewage treatment plant. In addition to the sludge dewatering plant building, it was also decided to build an integrated mixed sludge storage tank with a gas hood and a sludge storage hall. In addition to the HUBER Screw Press Q-PRESS®, the following equipment was also requested for sludge dewatering: the entire pump and measurement technology, polymer preparation including polymer mixing, switchgear and control technology with control system connection. Initial tests and positive results for the HUBER Screw Press Q-PRESS® The performance of the HUBER Screw Press Q-PRESS® Q440.2 was already tested on site in 2017 using our mobile demonstration unit in order to investigate the dewatering potential of the sewage sludge. The positive characteristics of the HUBER screw press were confirmed there: Dewatering performance > 26% DR Throughput of up to 4 m³/h Possibility of 24/7 operation Very good separation efficiency of > 98% Construction and commissioning Construction of the sewage sludge dewatering building began in autumn 2023. The building was designed to optimally accommodate the equipment. The mechanical and electrical peripherals for the HUBER components were supplied by SCHARR TEC at Hunderdorf (Lower Bavaria), the general contractor for the overall project, for which the HUBER Screw Press Q-PRESS® with intelligent conveyor system, including process technology, was supplied. The HUBER Screw Press Q-PRESS® Q440.2 was then commissioned in January 2025. The screw press control system regulates the machine to the preset optimum operating point, with the aim of achieving a high degree of dewatering and minimal filtrate load. Additionally, the receiving tank is equipped with an automatic sludge level reduction system. This system uses a double-secured level detection mechanism for automatic feeding of the machine. Performance data and optimisations The following sludge dewatering performance data was achieved: Dewatering performance of 25% to 28% DR 25% reduction in polymer consumption with 25% outlet DR compared to 28% outlet DR (desired outlet DR: 25%) Throughput of up to 15 m³/h Very good separation efficiency of > 98% Screw shaft speed of 0.3 rpm Electrical drive power of the machine of 0.4 kW Additional positive side effects: The operator can optimise system operation independently. Automated sludge transport and container change The dewatered sludge is then automatically transported from the upper floor to the basement via a shaft connected to the Q-PRESS®, and is then further conveyed into a container by a HUBER Ro8 TC distribution conveyor. The two degrees of freedom of the Ro8 TC – rotation and translation motion – ensure the container is filled to its optimum volume. The 20 m³ container is filled evenly due to the automatic swivel mechanism created by the rotational movement and the additional position adjustment of the screw conveyor’s chute with integrated fill level detection. The alternating filling of two containers is fully automated at the Parsberg sewage treatment plant, thus eliminating the need for employees to be present at any specific time. There is also no requirement for staff to be present when the dewatered sludge is transported away, which takes place every 6–7 days. By independently activating the ‘container change’ switch, the distribution screw automatically moves into a parking position, allowing the container to be changed independently without collision.[...]

[...]Sargans, Switzerland High level of user-friendliness increased even further In Sargans, Switzerland's first HUBER Screw Press Q-PRESS ® Q 800.2 was installed in 2017 for dewatering digested sewage sludge. The latest generation of screw press could win the competition against other systems due to its very high operational reliability and user-friendliness, complete stainless steel construction and very low operating costs. The demands on the system are extremely high. An essential factor is the required DR concentration in the dewatered sludge of over 30% with simultaneously clear filtrate quality. Furthermore, fully automatic operation is of great importance for the efficient use of the plant. After the usual system optimisations had been implemented in the first year, the operator expressed the wish for further automation options, especially with regard to decalcification. The reason for this was that the machine had to be descaled every quarter due to the hard water (around 25 °fH or 14 °dH hardness). Along with the planned automatic decalcification, the concept of a torque control for the targeted increase of the DR concentration was also developed. Both questions clearly aimed for an even higher efficiency in operation with optimised personnel deployment. Fully automatic decalcification The deposition process of lime precipitates and other substances that are difficult to dissolve on the screen basket surface and in the filter gaps is gradual. As a result, the freely available surface of the filter basket is continuously reduced, which has a direct effect on the performance of the machine. Since manual descaling is a significant time and cost factor, this operation should be reduced to a minimum. The fully automatic descaling is implemented by using the new rotating spray bar system, which is applied for the standard cleaning of the outer surface of the filter baskets. At a freely selectable interval, a descaling agent is dosed into the water supply line to the spray bar and allowed to take effect for a certain time. In the case of Sargans, this is done at an interval of one week and with a reaction time of about one hour before the system is rinsed normally with service water and then filled with sludge. The fully automatic decalcification achieves the following objectives: Regular descaling of the filter baskets without manual operations Avoid thicker deposits, which would be even more difficult to remove Ensure stable and optimal operating conditions for dewatering Increase the service life of downstream units (impeller of filtrate pump) Reduce downtimes for costly cleaning work. Since the installation of the descaling station at the beginning of 2019, no manual descaling of the HUBER Screw Press Q-PRESS ® Q 800.2 has been carried out in Sargans and the condition of the filter basket as well as the performance of the plant are constantly at a very high level. Load-dependent machine control Due to the high requirements on the DR in the dewatered sludge, the screw press is operated at high load. To ensure the machine would not be overloaded during normal operation, the operating parameters were set conservatively and closely monitored by the staff. With this mode of operation, on the one hand, part of the capacity was not utilised at all and, on the other hand, the effects of the manual interventions were only effective for a short time as the dynamics of the process could not be sustainably influenced by them. With the load-dependent control system for the HUBER Screw Press Q-PRESS ® Q 800.2 implemented in Sargans for the first time worldwide, the operating parameters are adjusted continuously to ensure optimum operation without jeopardising operational safety. The optimised control system enables: Smooth and continuous control of the sludge and flocculant feed and the screw press Operation of the machine in the optimum load range to achieve the best possible DR content in the sludge A simple and extremely effective optimisation option for the operator A shorter automatic start-up of the plant up to the optimum operating point A big “thank you” goes to the constructors at the Saar Wastewater Association and especially to the managing director Peter Müller for supporting the implementation of the presented innovations.[...]

[...]Dewatering of municipal and industrial sludges Compact, enclosed design Efficient, reliable, automated operation Low operation costs Sturdy, long-life stainless steel sludge dewatering unit Feed capacity up to 500 kgDR/h Two sizes available Extremely sturdy design Especially suitable for industrial sludges Well-proven in hundreds of installations Virtually noiseless operation Design and Function Liquid sludge is flocculated with polymer and pumped into a flocculation reactor where big solid flocks are produced. The flocculated sludge flows into up to two machines installed in parallel. The Screw Press consists in an inclined 0.25 mm wedge wire basket. The free water drains through the basket whilst the solids are retained inside the basket and conveyed gently upwards through the inclined basket by a slowly rotating screw. Continuous dewatering of the sludge takes place in the Screw Press with an increasing build-up of pressure due to the conical basket, which reduces the sludge cake volume in the press zone. The filtration pressure inside the machine is adjustable by means of a pressure cone in the sludge discharge. Brush elements on the screw flights clean the basket from the inside and rotating spray nozzle bars backwash it periodically from the outside. The Benefits of HUBER Screw Press S-PRESS Sludge volume and mass reduction up to 90 % Insensitive to coarse material, designed for high solids loads Minimum wear because of < 5 rpm screw rotation speed Low power and water consumption Automated operation Low maintenance requirements, no need for lubrication Low operation costs Completely encapsulated, odour-free plant Low noise < 68 dB(A) No vibration Pneumatically controlled pressure cone system Extra sturdy design for industrial applications More than 700 successful installations worldwide[...]

[...]HUBER Service Case Studies Convince yourself of the satisfaction of our customers and the efficiency of the HUBER Service HUBER Service Case Studies Global knowledge transfer: Successful sludge dewatering in India To provide optimal support for the first commissioning projects of the HUBER Screw Press Q-PRESS® in India,... HUBER Global Service – where technology meets natural wonders: first service consultant... In May 2025, Kevin Schneider embarked on the first service consultant tour of Canada – a country that... Systematic preparation for a major project: two-week intensive training course... A comprehensive two-week intensive training course was held at the HUBER Service Academy in preparation for... Rely on HUBER's manufacturer service – Your machines in the best hands Regular maintenance by the manufacturer is the key to the safe and efficient operation of wastewater... Training for operators of ship sewage treatment plants – A service provided by the HUBER... HUBER has been committed to providing innovative wastewater treatment solutions for cruise ships for many... Pioneering Work on the Other Side of the World: First Service Consultant Tour in New... The first HUBER service consultant tour in New Zealand, organised and planned by our long-time service... At an altitude of over 2,400 metres: HUBER service assignment for the German Alpine... HUBER Global Service recently successfully completed a very special service assignment in Austria. The... 1500th wastewater treatment plant with HUBER service and maintenance contract Ibbenbüren-Püsselbüren WWTP relies on future-oriented partnership with HUBER SE: HUBER service and... Multidimensional mirror of reality: HUBER and digital twins for more customer... Whether in the development of new machines, the production of a plant or in customer support by service... Steer into a safe future with new technologies in time – HUBER retrofit solutions for... Like mechanical components, the control system components of your HUBER machine are subject to natural... Freystadt WWTP trusts again in a HUBER service and maintenance contract For almost two decades, the municipality of Freystadt and HUBER SE have maintained a good business... Augmented reality and remote support: HUBER Global Service now even more flexible at its... HUBER is consistently pursuing the path of digitalisation and now also offers virtual support to its... ”For another machine life”: HUBER Factory Repairs introduces itself The approximately 2,000 m² hall offers the factory repair team enough space to disassemble and then... HUBER masters growing challenges in wastewater treatment with digital solutions: HUBER... The challenges in wastewater treatment are constantly growing and the adequate treatment of wastewater and... New base in Berlin: HUBER Service with even more customer proximity and... HUBER SE is expanding the locations of its Global Service in Germany and is commissioning a new base in... ”Quality, reliability, planning security“: Mannheim WWTP also relies on HUBER service and... Do you have a wastewater treatment plant of manageable size with few machines? Do you use not only HUBER... HUBER Full Service: new and trend-setting service product for HUBER customers Your requirements are our incentive: the demands on wastewater treatment plants and their operators are... Quality and reliability as seen by HUBER machinery and plant operators: customers rate... High quality of HUBER Global Service, a machine lifetime: HUBER SE's Global Service division stands for... Update your HUBER control system now With our HUBER Retrofit Service, you receive a new PLC hardware and a new operating device. This package is... "All inclusive" with HUBER Full Service HUBER expands its range of service and maintenance contracts with a further, powerful service package for... HUBER Global Service successful in Peru: Competence and quality convince our customer... Our customer has only trusted in original HUBER spare and wear parts and is absolutely satisfied with them.... HUBER Technology – hire equipment fleet goes from strength to strength HUBER Technology’s investment in its hire equipment business is going from strength to strength - latest... 1000 Plants in Germany with a HUBER Service and Maintenance Contract: HUBER signs... HUBER Service and Maintenance Contracts have over the years developed to become a worldwide highly demanded... HUBER service technicians use the possibilities of digitalisation When it comes to customer service, customers expect modern services, fast repairs, high competence and an... HUBER Technology - Global Service rises to the challenge of meeting GELITA AG's high... At the end of 2016, one of our most important industrial customers kindly agreed to give us his view of the... Reduce operating costs – sustainably improve plant performance - HUBER Service... A HUBER Service partnership on the basis of our service and maintenance contracts has meanwhile become a...[...]

[...]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 optimisation 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 optimisation 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 harbour 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 optimisation 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 optimisation 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 additionally screenings washing and pressing For any type of septic sludge Reliable separation of all disturbing material Dependable and reliable in operation 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 robust and efficient Ro3.1 version has become the most popular system of its kind. Its superior design and engineering guarantee most dependable operation – day after day, year after year. As an option, a heated and insulated version is available. The main component of the HUBER Sludge Acceptance Plant ROTAMAT® Ro3.1 is the reliable HUBER Fine Screen ROTAMAT® Ro1. It excels with its high throughput, good separation efficiency and low head loss. Floating and suspended material is retained in the screen basket. Another exceptional feature is its integrated screenings press with all its benefits. 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 For any type 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 odour 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 Design and Function HUBER Sludge Acceptance Plant RotaShield® Rotating high-performance screening drum for extreme applications. Reliable, clog-free solids transport through forced guided material transport within the drum. This ensures high solids throughput even with problematic material (wet wipes, grease, stones). Solids washing and dewatering by means of a subsequent screenings wash press, type HUBER Wash Press WAP® . While wash water is added to pre-wash and homogenise the raw material within the HUBER Sludge Acceptance Plant, the perforated plate of the wash drum retains all particles bigger than the perforation, which are dewatered and then discharged into a skip. Since only coarse material according to the perforation is separated, the volume of the resultant residues is vastly reduced with virtually the complete mineral material being further treated in the down-stream HUBER Coanda Grit Washer RoSF4 . The resultant coarse material can then be further separated into a mineral and organic fraction by means of a coarse material washer. The Benefits of HUBER Sludge Acceptance Plant RotaShield® High solids throughput even with problematic material (wet wipes, grease, stones) High hydraulic capacity even with high solids contents Defined separation size due to two-dimensional screening Feeding from a conveyor, through a launder channel or pressure line Solids throughput up to 6 m³/h Completely encased unit Insensitive to coarse material 3 to 100 mm separation size Screened wastewater can be used as wash water Short tanker vehicle emtpying times Optional simultaneous emptying of several vehicles Minimum wear, reduced maintenance Compact, space-saving design Low energy demand High corrosion resistance[...]

[...]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 presses the unscreened liquid through the screening zone and delivers the screened liquid to further process steps. The coarse material which is retained on the cylindrical screen is stripped off by a coaxial screw and pushed through the press zone where the material is extensively compacted and dewatered. The screw operates only when the pressure sensors detect a differential pressure caused by screen surface blinding. The compacted material is pressed through a gap around a hydraulically operated pressure cone which closes part of the pipe end and builds up counterpressure. The counterpressure of the cone is automatically regulated inversely proportional to the screw motor load. 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 allows for example to replace the perforated plate and install a screen insert with a new perforation size. 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 any type of sludge including highly viscous and grease containing sludge Increases the operating reliability of downstream sludge treatment systems, such as thickening, disinfection, stabilisation, dewatering, drying, and reduces maintenance requirements 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 with varying flow rates Dewatering of separated coarse material to approx. 40% DR 2 sizes for throughput capacities up to 200 m³/h More than 1,000 successful installations worldwide Reliable cleaning of the screen without any wash water[...]