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[...]A robust fine screen designed for surface water screening, delivering exceptional operational reliability and optimal cost efficiency Compact machine with throughputs of up to 528 MGD / 100,000 m³/h Innovative sealing concept for removing dirt from the clean water side Rugged design for maximum uptime and reliability Highly efficient and cost-effective operation with minimal maintenance requirements Machine design allows for shorter channels thanks to reduced laminar flows at the machine outlet Plant operators require durable fine screening machines to effectively shield pumps and membranes from dirt particles contaminating the clean water side. A critical aspect is optimizing water flow behavior in the sewer to maximize efficiency. Typically, coarse screens are installed upstream of fine screens to capture larger impurities, ensuring optimal performance of the fine screening machines. The correct choice of the mechanical screens determines the stability of subsequent process steps and thus the economic efficiency and safety of the entire plant. In view of the increased demands of operators for high throughput rates using the smallest construction volume and low operating and maintenance costs, HUBER has developed the compact Band Screen DualMax®. Design and function of the HUBER Band Screen DualMax® The HUBER Band Screen DualMax® is a screen with stainless steel screen elements and a flow from the outside to the inside of the channel. The screening elements, available in mesh or perforated plate designs with various separation sizes, are tailored to meet specific requirements. These elements are linked to a chain driven by a motor. The chain is guided along a track in the lower section and a chain wheel at the upper end of the machine, ensuring smooth and reliable operation. During operation, dirt particles accumulate on the screening elements and are transported upward by their motion. A spray nozzle system positioned ahead of the screening elements removes these particles, directing them into an externally positioned launder channel for discharge. Coarse dirt particles that do not stick to the screening elements are also carried upward by additional carrier bars integrated into the screening design. For environmental reasons, the machine can be equipped with fish buckets as an option to protect aquatic life. The DualMax® design allows contaminated water to flow into the machine from both sides through the filter elements and exit through the output, significantly reducing turbulent flows downstream of the fine screening machine. This minimizes the distance to the pump, enabling a shorter on-site channel. The robust frame design of the DualMax® ensures safe and economical water withdrawal while optimizing installation time and reducing construction requirements. The machine can be installed as a complete fine screen unit or in assemblies directly within the channel. The DualMax® can be constructed from stainless steel, duplex, or super duplex materials to meet specific project requirements. For enhanced durability in corrosive environments, a combination of stainless steel and cathodic corrosion protection is also available, ensuring reliable and long-lasting machine operation. In addition to design, manufacturing, installation and commissioning, HUBER's service portfolio encompasses the complete after-sales service, including the supply of spare parts and system maintenance. If site conditions change, we also adapt the existing plant equipment. Advantages of the HUBER Band Screen DualMax® Quick and easy installation of the machine in the structure thanks to self-supporting frame Zero carry over: ensuring no dirt particles are transferred to the clean water side, thereby enhancing the operational reliability of subsequent process steps High levels of durability and low-maintenance operation thanks to compact machine design Easy maintenance – all maintenance steps can be carried out at operator level Extended service life ensured by the careful selection of materials and the application of advanced corrosion protection systems Fish friendly solution – optionally available thanks to specially developed fish bucket and fish return system Variable speed of operation to optimize the machines' running times and discharge capacities Lower laminar flows at the machine outlet enable onsite optimization potential thanks to shorter channels[...]

[...]Prevention of blocking Easy retrofit Sturdy design, reliable operation As stones and large objects present in sewers can damage pumps and the inlet equipment of wastewater treatment plants, such objects have to be removed to ensure reliable operation. Design and Function The HUBER Basket Screen CageLift prevents such blockage, the entanglement of debris and damage of equipment as it removes the material. The screen can be installed in a manhole prior to pumps, the size depending on the inflow rate and depth. The sturdy, stable basket screen with bar spacing from 20mm to 80mm retains the floating debris at the sewer outlet. The screen bottom plate is perforated to allow static dewatering of the retained material. When a certain amount of material has accumulated, the screen basket is lifted upwards by an electric chain hoist. The vertical basket movement is supported by a stable carrier and guide rails. These rails are curved in the upper section to ensure a partly automatic discharge into a suitable container. While the screenings are transported upwards in the basket, material which could impair the function of downstream pumps is removed by a fall screen supported on guide rollers. The Benefits of the HUBER Basket Screen CageLift Prevention of blocking and entanglement of debris, and damage of equipment Quick and easy retrofit Sturdy design, reliable operation, functional[...]

[...]Create value from waste! Sewage sludge is the “waste product“ that is generated in sewage treatment plants. Drying the sludge reduces disposal costs and offers the ability to convert the waste to fuel or a fertilizer resource! Dry, low-dust, disinfected granular biosolids product Easy and safe to handle Tailor-made heat utilization concept Reduced disposal costs Design and Function The HUBER Belt Dryer BT makes waste a valuable resource ... … in the most efficient way ... The unique HUBER HELIX air flow system ensures that only the minimum required amount of drying air is blown through the dryer by the ventilators. In combination with the CFD-optimized dryer geometry, an extremely low electrical energy demand is achieved with this air flow system. The closed process air circulation system with integrated condensation stage reduces the exhaust air volume flow to 3000 cfm / 5,000 m³/h maximum and contributes to keeping down operating costs. ... in the most reliable way ... The HUBER Belt Dryer BT is designed for fully automatic 24/7 operation. All core components are durable and manufactured in the USA. The integrated automatic belt cleaning system and the HUBER extruder ensure reliable, trouble-free operation of the dryer. With high safety standards and low drying temperatures ranging from 158°F to 302°F / 70°C to 150°C, the HUBER Belt Dryer BT meets all ATEX requirements, ensuring safe operation at all times. ... in the most comfortable way ... The electrical control system of the HUBER Belt Dryer BT automatically adjusts to external factors that could affect the drying process, eliminating the need for operator intervention. Additionally, the dryer is designed for easy cleaning and maintenance, allowing a single person to handle these tasks efficiently. Optional remote maintenance solutions are additionally available to enable system operators to monitor their drying plant from anywhere, or even control and operate it if required via an end device, such as PC, mobile phone or tablet PC. ... in the most sustainable way ... The consistent use of exhaust heat from processes, such as power generation from sewage gas or biogas, helps reduce both operating costs and CO 2 emissions. Optional heat recovery from the dryer (to heat buildings or digesters) also contributes to the sustainable protection of the environment. The dry granulate produced by the dryer can be used both as fuel and fertilizer. ... in the most clever way ... The HUBER Belt Dryer BT represents state-of-the-art technology of sewage sludge drying. Maximum energy efficiency, fully automated, and the flexible use of exhaust heat guarantee low operating costs and easy system operation. The dryer can also easily be integrated into existing installations and process plants. Various components of peripheral plant equipment offer maximum flexibility and can be customized to meet specific requirements. Customized Plant Solutions HUBER offers you customized plant solutions. The HUBER Belt Dryer BT uses a variety of waste heat sources and istherefore the ideal solution for existing process integration. Combined with HUBER dewatering systems and HUBER Screw Conveyor Ro8 T , the HUBER Belt Dryer BT offers the customer a reliable complete solution for perfectly tailored sludge treatment. The HUBER Belt Dryer BT has proven its reliability in many projects worldwide.[...]

[...]Sheboygan, WI, USA A new HUBER Belt Dryer project is on the way in the USA. A BT 18 dryer for a throughput of 11,700 t/a will be installed at Sheboygan in the US state Wisconsin. HUBER SE could win the order already in July 2012. We were commissioned to supply not only the belt drying plant, our scope of delivery includes also a HUBER Screw Press Q-PRESS®, size 800 for sludge dewatering. The HUBER Belt Dryer we supply to Sheboygan will be the first installation of the new dryer generation in the USA. The plant conception excels for its excellent energy efficiency and a high level of safety. The low electrical energy demand is achieved primarily through the new control concept and the so-called "helix air flow" which ensures that the process air streams through the drying chambers as a spiral air flow. As the air is reheated in each chamber, its load capacity can be utilized to the maximum. This means that only that amount of air needs to be moved through the dryer which is actually used for drying. Much smaller drives are therefore sufficient for the ventilators and also the exhaust air treatment system can be dimensioned very small so that a lot of operating costs can be saved. Especially the feeding system of the dryer ensures a reliable plant operation. The sewage sludge extruder, also called pelletizer, presses the sludge and produces spaghetti-like sludge strands with a defined surface-volume ratio. As the sludge keeps its form during drying it is possible to avoid the highest safety risk involved with the operation of belt dryers, namely the production of dust. To facilitate the installation work to be carried out on site the dryer will be pre-assembled in the factory and delivered as only few individual parts. Furthermore, a HUBER engineer will be there to supervise installation on site and support the local installation team. Facts and figures on the project: Site: Sheboygan, Wisconsin, USA Size: BT 18 Dryer length: 24 m Water evaporation: 1.361 kg/h Throughputmax: 11.700t/a ; 1.800 kg/h Operating time: 6.500 h/a Drying: from 20% DR to 90% DR Heat source: Warm water 90° C[...]

[...]Excellent separation efficiency due to its perforations Reliable cleansing of the perforated plates with a rotating brush and spray bar Very compact system with minimum space requirements Easy-to-retrofit into existing channels The EscaMax® complements the well-known HUBER program for municipal and industrial wastewater screening, as it is particularly well suited in situations where excellent separation efficiency is required in deep channels with high water levels. Perforated screening elements provide superior separation efficiency in comparison with slit screening elements. It has been determined that two-dimensional perforations are better than one-dimensional slits. Formation of screenings rolls is prevented by rake bars extending over the full width of the screen in combination with the screen‘s installation angle. Even cans and bottles are lifted by these rakes. Design and Function The HUBER Belt Screen EscaMax® operates with a filter belt, where each element is connected to a drive chain. These chains are powered by chain wheels, which in turn are driven by sprockets on a common shaft connected to a flange-mounted gear motor. As the filter belt moves, it passes over an upper turning point. At this stage, the screening elements are cleaned by an internal spray nozzle bar, which operates in the opposite direction of the screening flow to effectively dislodge and remove collected debris. This self-cleaning mechanism ensures continuous, efficient operation with minimal maintenance. The HUBER Belt Screen EscaMax® is equipped with a separately driven roller brush that further enhances the cleaning process. The roller brush operates against the travel direction of the filter belt, significantly improving the efficiency of the cleaning action. One of the main advantages of this cleaning method is that the spray nozzle bar removes a majority of the screenings, including abrasive materials, in the initial stage of cleaning. This reduces the wear on both the screening elements and the roller brush, extending the service life of the system. The sturdy construction of the HUBER Belt Screen EscaMax® allows it to handle even high amounts of gravel and grit reliably. The two-dimensional perforated screening elements effectively capture long fibers, preventing them from passing through the screen and ensuring maximum separation efficiency. This combination of features makes the EscaMax® an ideal choice for challenging wastewater treatment applications where both durability and high performance are required. The Benefits of the EscaMax® Screen Excellent separation efficiency due travelling perforated plates Reliable cleansing of the perforated plates with an internal spray nozzle bar and counterrotating brush No scraper roller for trough edge cleaning required All submerged bearings are wear-resistant ceramic bearings. Compact design with a low installation height above ground level Completely odor-encased screen with easy to remove covers Not hindered by gravel or grit Easy-to-retrofit into existing channels, installation without channel recesses possible The screen consists of a self-supporting folded stainless steel profile so that it can easily be lifted out of the channel. Simple and easy-to-access chain tensioning unit All machine components in contact with the medium are made of stainless steel and acid treated in a pickling bath (except chains, drives, bearings). As an option, the chains and chain wheels are available in stainless steel.[...]

[...]Very low polymer consumption High throughput capacity Reliable operation The purpose of sewage sludge thickening Sewage sludge, particularly secondary sludge, is charac­terised by low solids concentrations and therefore big vo­lumes. Good sludge thickening is required as a prerequi­site for the efficient further treatment of sewage sludge, for example in digesters, and is also necessary where liquid sewage sludge is transported to further treatment steps or utilisation. The following criteria are decisive for the selection of the thickening process: Efficiency Performance Reliability Design and Function Polymer is added to the thin sludge and the sludge condi­tioned in a flocculation reactor prior to being distributed evenly over the full width of the continuously travelling filter belt. The water filtered through the belt filter cloth drains off into collection troughs whilst the solids are retained on the filter belt. Chicanes furrow the sludge to facilitate drainage and support the production of a concentrated sludge cake. The initial thin sludge volume is reduced by approx. 85 %. The sludge cake is dischar­ged into a collection trough from where it is removed by an eccentric screw pump for example. A spray bar cleans the filter belt while it travels back. The benefits of the HUBER Belt Thickener DrainBelt Efficiency Sludge volume reduction up to > 85% Typical thickening results > 6% DR Minimised polymer consumption, normally only 2 – 3 g effective substance/kg DM Low energy consumption Belt filter cleaning with filtrate water as spray water Reliable technology Long filter cloth life due to the slow filter belt velocity of < 20 m/min Minimised wear of the plastic chicanes Encased thickener suitable for the treatment of strong-smelling sludge, protecting operators against harmful spray water aerosols Big inspection openings to facilitate maintenance Easy to operate and maintain High performance Large active filter surface Very long thickening zone Increased filtration results through repeated sludge restacking Increased thickening results due to a ramp installed to decelerate the sludge prior to being discharged Selectable filter cloth options to meetspecific requirements High specific throughput capacity up to 45m3/h per metre of filter belt width[...]

[...]Belt filter press for municipal and industrial sludge High-performance belt filter press for best dewatering results Combi-unit: thickening and dewatering in one working process Feed capacity up to 1000 kgDR/h Three sizes available Versatile sludge press High efficiency (low polymer and power consumption) High capacity (due to extended predewatering zone) Application-optimized design Can be combined with the HUBER Belt Thickener DrainBelt unit to further increase capacity The Machines – Design and Function HUBER Bogenpress B-PRESS A new, extended high-performance pre-dewatering zone with chicanes, the bow zone, plus two perforated dewatering rolls ensure optimal pre-treatment and compaction of the flocculated sludge so that it can be exposed to maximum pressure in the following high pressure zone which is equipped with press rolls decreasing in diameter (4, 6, 8, or 10 rolls). This process guarantees highest dewatering results. The machine is equipped with detachable covers to provide easy access to moving machine parts. HUBER Bogenpress B-PRESS BS Combi The BS Combi version has a belt thickener ( HUBER Belt Thickener DrainBelt ) mounted on the actual Bogenpress. The sludge is at first pre-thickened on the belt thickener prior to passing through the dewatering zones of the Bogenpress. The combination system is able to handle up to 80 m³/h. Another advantage of the system is that coagulant agent addition is required only once for both the thickening and dewatering process.[...]

[...]Chemicals dosing is optimal if the flotation system constantly achieves the required performance without overdosing of chemicals and unnecessarily increasing operating costs. In practice, it proves to be difficult to adjust the chemicals dose due to varying volumes and freights. Large-dimensioned mixing and balancing tanks are beneficial but can frequently not be installed due to lack of space. Besides, the investments costs are high for the tanks and the accessory equipment required, such as circulation pumps and aeration systems for homogenisation. The innovative HUBER Chemicals Dosing DIGIT-DOSE allows optimal dosing of the chemicals even with small mixing and balancing tanks. The specially developed system uses a combination of several measuring principles and constantly determines the optimal chemicals dose in real time. A cyclically operating cleaning system ensures the constant availability of the installed measuring technology. Chemicals consumption, and therefore also operating costs, are reduced to a minimum. Additional positive effects can be seen in the volume of flotate sludge generated, a main cost factor of flotation plants for utilisation and disposal. Furthermore, DIGIT-DOSE makes life easier for the operating staff as the system adjusts automatically to varying wastewater parameters without the need for any manual intervention. Design and Function Precipitation: Transformation of dissolved pollutants into removable solids. Neutralisation: Neutralisation of the wastewater mixture through addition of neutralisers, automatic pH regulation. Flocculation: Generation of large and strong flocs by polymer addition. Flotation: Addition of micro bubbles for flotation of the micro flocs, mechanical removal of the concentrated sludge layer and separation of the solids-free clear water phase. Applications of the HUBER Chemicals Dosing DIGIT-DOSE Slaughterhouses and meat processing industry Dairies and cheese dairies Food companies Tanneries Animal rendering plants General pre-treatment by flotation for highly varying wastewater compositions Suitable also for retrofitting existing HUBER HDF installations! The HUBER Chemicals Dosing DIGIT-DOSE System Benefits Up to 30% reduction in chemicals consumption Support and relief for operating staff Up to 20% reduced flotate sludge volumes Production of hydroxide sludge resulting from overdosing of precipitants is effectively avoided Integrated automatic cleaning of the measuring equipment used Low investments costs and space requirements for mixing and balancing tanks Return on investment within few months Optimized use of chemicals due to the intelligent and permanent dose regulation reduces the amount of flotate sludge. Beside the operating costs for chemicals, disposal costs for flotate sludge are another main cost factor. The investment costs for the HUBER Chemicals Dosing DIGIT-DOSE pay off for plant operators within a very short time due to the significantly reduced operating costs. Existing plants retrofitted with DIGIT-DOSE have shown that the ROI (Return on Investment) can be achieved within only one year. If HUBER DIGIT-DOSE is considered and included already in the project engineering phase, the size of mixing and balancing tanks can be reduced to the minimum. Any load variations still present can then reliably be managed with the freight-controlled chemicals dosing solution without any negative effects on operating costs and/or plant efficiency.[...]

[...]High grit separation efficiency through tangential wastewater inflow Optional with integrated grit classifying screw Compact, space-saving unit Stainless steel tank design Applications Wastewater treatment plants Process water treatment Solids / liquid separation in general Design and Function Separation of the grit particles in the HUBER Circular Grit Trap HRSF is supported by the rotational motion of the wastewater. The separation effect is generated by overlapping of the vertical downward motion and a developing centrifugal force acting on the individual grit particles. The inner tank surface serves as the separation area. To increase the separation area, the HUBER Circular Grit Trap HRSF has an additional separation cone for a reliable maximum separation performance. For improved separation of organics from grit, the option for air intake via an aeration system is provided. Organic components are kept floating and are discharged with the water flow above the separator cone. The separated solids are removed from the plant either directly by means of an integrated classifying screw, or pumped into a grit classifier. The layout of the HUBER Circular Grit Trap HRSF was made on the basis of numeric design engineering and tested and verified under practical conditions in collaboration with the German test institute LGA. Benefits of the HUBER Circular Grit Trap HRSF Maximum separation efficiency due to additional separation area (separator cone) Throughput capacity up to 150 l/s (540 m³/h) Compact, space-saving unit Encapsulated, odour-free plant Completely made of stainless steel for high corrosion resistance Optional with integrated grit classifying screw Optional with scum separator and aeration[...]

[...]HUBER Screw Conveyor in a closed tube Transport of coarse, fine and compacted screenings, sludge, grit, and solids from industrial processes Customized designed for horizontal, inclined and even vertical transport The HUBER Screw Conveyor in a Closed Tube is designed for the transport of coarse, fine, and compacted screenings, sludge, grit, and other solids. This conveyor system can be customized for horizontal, inclined, and even vertical transport, offering versatility for various installation needs. Gentle movement in an enclosed pipe prevents odor nuisance and dust development. Design and Function The HUBER Screw Conveyors are custom-built to suit the specific material being transported, ensuring optimal design and efficiency for each unique application. Manufactured using state-of-the-art techniques, these conveyors can be equipped with either a push or pull drive, and additional components like feed hoppers or discharge outlets can be integrated as needed. They also allow for direct screenings transfer between conveyors, ensuring seamless material flow. The closed tube version HUBER Screw Conveyor Ro8 with guide bars can be installed at an angle of up to 90° depending on the individual product to be conveyed. As an option, depending on the individual installation situation, several units can discharge into one screw conveyor as the screw shaft is supported on both ends. The motor and screw design are adaptable to specific customer requirements. Screw lengths up to 49 ft / 15 m for a throughput of 4.4 GPM – 52 GPM / 1 – 12 m³/h are no problem. The Benefits of the HUBER Closed Tube Screw Conveyor Ro8 Installation angle Depending on application and layout, an installation angle up to 90° can be realized. Completely made of stainless steel The machine is completely made of stainless steel and pickled in an acid bath which eliminates corrosion and thus reduces maintenance. Enclosed system Gentle movement in an enclosed pipe prevents odor nuisance and dust development. Outdoor installation For outdoor installations, the HUBER Screw Conveyor Ro8 can be supplied with a frost protection, combined with an additional insulation if required. Low maintenance No lubrication. Regular checking and visual inspection are sufficient.[...]