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[...]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 Conveyors are installed for horizontal, inclined and even vertical transport of screenings, dewatered sludge, grit etc. from wastewater treatment plants, or other solids from industrial processes. Gentle movement in an enclosed pipe prevents odor nuisance and dust development. Design and Function The HUBER Screw Conveyors are custom made for the individual product to be conveyed and designed and manufactured with state-of-the-art techniques. Due to their special design principle the conveyors can be equipped with either a push or pull drive and feed hoppers or discharges can be added if required. Direct screenings transfer from one to the other screw conveyor is no problem. 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 15 m for a throughput of 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 realised. 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.[...]

[...]Wastewater fine screening Screenings treatment Grit separation Grit classification Requirements for a complete mechanical wastewater treatment plant Manually operated screens and grit traps are no longer sufficient even for small wastewater treatment plants. The increased demands on biological treatment make it necessary to improve the separation performance of mechanical treatment. Solid material has to be separated as far as possible and removed. Screens with automatic cleaning and integrated discharge are now required. Screenings treatment, such as washing of faecal matter, dewatering and compaction, is required more and more often for economic and hygienic reasons. Reliable state-of-the-art grit separation and automatic grit discharge are needed. Our HUBER Coanda Complete Plant ROTAMAT® Ro5 C offers all these mechanical wastewater treatment steps for small sewage treatment plants in one machine. Design and function A container-mounted ROTAMAT® Micro Strainer removes solid material from the wastewater depending on its bar spacing (e.g. e = 2 mm). Screenings are removed and transported by a screw conveyor. Inside the closed rising pipe, screenings are dewatered and compacted by an integrated press. Subsequently, they are discharged into a container. The cleaned wastewater flows by gravity into a COANDA circular grit trap. As the COANDA Tulip is fed through a vortex chamber, the wastewater flow gets a tangential in addition to a radial flow direction. Air is sucked into the vortex and mixed with the waste water flow. The combination of three effects, namely the COANDA effect, the tea-cup effect and the air intake, guarantee that the organic components are kept on the surface and discharged over a weir while the grit settles in the lower trough area. The separated grit is removed through a classifying screw, statically dewatered and discharged into a container. Benefits of the HUBER COANDA compact unit Complete mechanical preliminary treatment combined in a single unit Maximum throughput up to 25 l/s (90 m3/h) Small space requirements Integrated dewatering and compaction of the screenings; option of screenings washing High grit removal efficiency Completely made of stainless steel (also the augers) Option of frost-proof design down to -25° C Grit classifying screw supported on both ends Encapsulated, odour-free plant[...]

[...]Utilisation of the Coanda effect ensures high grit removal efficiency Partly reduced organic content of the grit Maximum corrosion resistance and wear protection Grit classifiers are widely used on sewage works for the removal of grit. Flow conditions ideal for maximum grit removal based on scientific definition have until now been unobtainable. Previously designed plants based on past experience have often suffered from grit carry over due to insufficient retention time caused by undersizing of plant (consequence: deposits in digester, high wear rate of pumps) or conversely classified grit with a high organic content due to oversizing of plant. Consequence: high disposal costs, and wet grit due to insufficient dewatering. The HUBER Coanda Grit Classifier RoSF3 was developed by HUBER in cooperation with the University of Munich, hydraulics department. Based on the Coanda-Effect, the flow into the tank can be defined exactly and simulated mathematically. When operating at optimum flow, the grit separation is up to 95 % (grain size 0.2 mm). Design and Function The difference in density between grit and other organic components can partly be taken into consideration to ensure reduced organic contamination and thus static dewatering of the classified grit. High efficiency has enabled the HUBER Coanda Grit Classifier RoSF3 to be significantly smaller than conventional classifiers. The grit / water mixture flows either by means of a pump or by gravity into the vortex chamber where a rotary motion is induced. An automatic air intake takes place through the centrically located drilling hole on the vortex chamber. The heart of the HUBER Coanda Grit Classifier RoSF3 is the inserted Coanda Tulip. The organically laden water flowing in from the top adheres to the tulip wall and is diverted to the horizontal below water surface by the Coanda-Effect. Reduced radial and tangential flows assist the separation process and the difference in density between organic and mineral material is partly taken into consideration. The classifier screw transports the clean grit up an inclined plane where it is dewatered under gravity before discharge into a skip. The mineral residue from a plant operating under optimum conditions is in excess of 90% (e.g. a plant with appropriate pre-screening and grit collection facilities). The benefits of HUBER Coanda Grit Classifier RoSF3 High levels of grit separation of 95 % of grain size 0.20 - 0.25 mm Screw supported on both ends for minimised wear High corrosion resistance Encapsulated, odour-free plant Option of frost-proof design[...]

[...]Grit classifying and grit washing in a single and compact unit Reduced disposal costs Utilisation of the Coanda effect ensures high grit removal efficiency. Less than 3 % organic content High solids throughput More than 2,000 installations worldwide The HUBER Coanda Grit Washer RoSF4 combines grit classifying and grit washing in a single and compact unit. By using the Coanda effect the process of classifying can be combined with the process of sorting to ensure a continuously high separation efficiency and outstanding washing performance. Design and Function Classifying with the Coanda Effect A mixture of grit, organics and water is fed through a vortex chamber where a fast spinning rotational movement is generated. The mixture then flows down through a trumpet-shaped Coanda Tulip. The flow is diverted along the curved inner surface of the Coanda Tulip by the Coanda effect that a liquid flow is adhering to the contour of a curved surface. The flow is thus smoothly, without generation of eddies, diverted from a fast rotating vertical direction to a gradually slower rotating horizontal direction. There is a high flow velocity along the inner surface of the Coanda Tulip, a moderate radial velocity underneath the water surface and the again high velocity at the weir. The solids contained in the flow (grit particles, organic material) are then separated due to the flow diversion combined with flow velocity reduction, dependent upon the particle settling velocity, and sink down to the bottom portion of the tank. The excellent flow pattern in the HUBER Coanda Grit Washer RoSF4 leads to a > 95 % separation of 0.20 – 0.25 mm diameter grit particles. The separation degree depends on the settling velocity of the solids to be separated (due to the influence of particle density and size) so that also organic material will be separated. Fluidised bed for outstanding grit washing The separated grit is then washed, i.e. attached organic matter is separated from the mineral grit particles. This takes place in the bottom portion of the HUBER Coanda Grit Washer RoSF4 where a fluidised grit bed is generated. Wash water is fed into a bottom chamber that is separated from the grit washer tank by a perforated plate and a perforated rubber diaphragm. The wash water flows upwards through the diaphragm and is evenly distributed over the bottom of the tank thus generating a fluidised grit bed. Within the fluidised bed the grit particles rub against each other thus removing organics from their surfaces. This process is supported by the central stirrer keeping the particles in motion. After removal of the organic material the clean grit is removed through a classifying screw, statically dewatered and discharged into a container. The organic material left in the HUBER Coanda Grit Washer RoSF4 is removed from the plant also automatically but discontinuously, depending on the entire process, so that a defined separation capacity is constantly available. The benefits of the HUBER Coanda Grit Washing Plant RoSF4 No additional preceding screening required (e.g. < 4 mm) High grit and gravel yield Suitable for treatment of grit from sewers, gully waste, road sweepings No crushing of stones and gravel inside the plant The screw is supported on both ends for minimized wear. Optional grit removal even during grit feeding due to on-line grit level measurement Encapsulated, odour-free plant Separate organics discharge allows for separate further treatment of organics Large diameter screws for a high solids throughput Stainless steel stirrer and screw More than 2,000 installations worldwide give proof of customer satisfaction Easy to integrate into complete treatment processes Up to 3 m³ solids throughput per hour[...]

[...]Cable operated coarse screen for: Protection of pumping station Seawater intake Surface water intake Sewage treatment plants The HUBER Coarse Screen TrashMax® is ideal to be used in pumping stations, as first treatment stage of wastewater treatment plants or industrial plants, and in the inlet to power plants. The screen removes coarse and bulky material and therefore protects downstream systems. The TrashMax® excels due to its high-capacity screen rakes and the high operational safety due to efficient and reliable screen rack cleaning. Design and Function The cleaning elements, attached to the chain system, can easily be adjusted to different requirements and remove even heavy objects and bulky material. As the cleaning rakes can be variably adapted, removal capacity is then adjustable. The benefit of high cleaning efficiency is especially favourable for high solids loads. The installation height of the HUBER Coarse Screen TrashMax® above ground level is very small and only dependent, even in case of deep channels, on the installation height of screenings transport or disposal units. Both ends of the cleaning rakes are connected to robust drive chains. Two wear-resistant rollers on each side, running in lateral guiding tracks, ensure true and smooth running of the rakes as they move upwards with the result of reliable intensive screen rack cleaning. Each chain is driven by a sprocket on a common shaft and a gear motor. The rakes of the TrashMax® screen mesh with the screen rack bars at the bottom dead centre, at first with the back cleaned screen rack and then with the behind front cleaned screen rack. This operation principle avoids the accumulation of material in front of the screen and even extremely bulky objects are reliably removed by the screen rakes and transported upwards out of the channel. The lower part of the HUBER Coarse Screen TrashMax® consists in the steep conveying section followed by the upper part, the flat discharge section with a small inclination. This screen design guarantees the reliable discharge of screenings into a downstream transport or disposal system. Benefits of HUBER Coarse Screen TrashMax® Innovative combination of a front cleaned and back cleaned screen rack in a single unit Reliable removal of bulky material with high operating reliability High capacity screen rakes Exact screen rake guidance for reliable cleaning of the front cleaned and back cleaned screen rack Compact L-shaped screen Easy to retrofit into existing channels Installation without channel recesses possible Simple and easy-to-access drive unit All parts in contact with medium (except the drive and bearings) are made of immersion pickled stainless steel. No additional consumables, such as service water, required for plant operation except electric current[...]

[...]Sewage sludge drying using a heat pump – an environmentally friendly and cost-effective solution for municipal and industrial wastewater treatment The compact containerised solution The HUBER Cold Air Dryer HPS® has been developed to efficiently, safely and cost-effectively dry sewage sludge, all within a ready-to-operate, modular containerised design. Who is the sludge dryer for? Specifically for small to medium-sized sewage treatment plants (10,000 to 50,000 p.e.) If there is no source of waste heat for drying but surplus electricity is available, for example from a solar PV system, the HUBER Cold Air Dryer HPS® really comes into its own. Due to the amendment of the Waste Sewage Sludge Ordinance (AbfKlärV), disposal costs for sewage sludge are set to rise in the foreseeable future. Drying reduces the volume and mass of sludge whilst simultaneously creating a high-calorific fuel for mono- or co-incineration. This makes an immense contribution to CO2 reduction. Compact design in combination with the HUBER Screw Press Q-PRESS® Minimal space requirements for maximum cost savings on sewage sludge disposal Integration of sewage sludge dewatering, surplus energy and sewage sludge drying operations Design of the HUBER Cold Air Dryer HPS® The compact containerised solution The HUBER Cold Air Dryer HPS® has been developed to efficiently, safely and cost-effectively dry sewage sludge, all within a ready-to-operate, modular containerised design. No additional structure is required! The HUBER Cold Air Dryer HPS® can be delivered fully assembled in a container. No construction time No need for planning permission for a new building Minimal foundation requirements Quick to install at almost any location In buildings, the dryer can be installed with or without a container. Few interfaces ‒ plug and dry The container contains all the necessary components: Drying chamber Fans Heat pump Control cabinet with control technology All that remains to be connected is: Electrical power supply Sludge supply Dry sludge removal Condensate removal Cooling water How does sludge drying with a heat pump work? The process runs continuously in a closed loop. Evaporator: Moist air from the dryer flows over the heat exchanger, causing the refrigerant to evaporate. Compressor: The refrigerant is compressed, causing the pressure and temperature to rise. Condenser: Here, energy is released again, heating the process air for drying. Expansion valve: The refrigerant expands via the valve and is regulated to a constant, defined superheat after the evaporator. The drying process ‒ step by step The sludge is fed onto the drying belts. The sewage sludge is evenly applied to perforated conveyor belts. The sludge dries on the belts. Water evaporates by convection. Cooling and condensation. The moist air is condensed by passing through heat exchangers. The air flow is heated. The air is heated by the liquefaction of the refrigerant. A recirculation fan compensates for pressure loss. Warm, dry air is directed to the belts.[...]

[...]Well-proven mechanical preliminary treatment equipment High grit separation efficiency Large scum separator with automatic grease removal Optional grit washing The unique HUBER Complete Plant Hydro Duct ROTAMAT® Ro5 HD combines the benefits of both aerated and unaerated grit traps by using a high-performance, innovative grit trap with a small overall plan area. Design and Function The wastewater flows firstly through an inlet screen that retains, washes, compacts and dewaters the solids contained within the flow. The screened wastewater then passes at a right angle into the grit trap tank where it generates a spiral flow. Integrated air tubes support the spiral flow and ensure that the organic particles are kept in suspension. Additionally, grease and similar substances float to the surface by the action of the aeration system within the grit trap. The flow then enters a second unaerated upflow grit trap chamber which contains an integral hydro duct that ensures a directed flow approach from the bottom of the chamber with positive and uniform upflow distribution. The flow velocity in the unaerated grit trap chamber is reduced to such an extent that very fine grit settles at the bottom and the grease rises to the water surface from where it is automatically removed by a well-proven paddle system. Whilst the particles separated from both chambers are removed from the grit trap by classifying screws or grit pumps, they are simultaneously being statically dewatered, or washed in a grit washer, prior to being discharged into a container. As an option, the separated grit trap material can be washed in the Complete Plant. In this case, the horizontal grit conveyor transports the separated grit fractions directly into a grit washer integrated at the Complete Plant outlet. Due to a defined introduction of upwardly directed service water the grit situated within the lower part of the grit washer is fluidised within the flow enabling the lighter organic particles to be separated from the dense grit particles. The separation of the lighter organic particles from the dense grit particles is supported by a rabble rake. After removal of the organic material the clean grit is automatically removed by a classifying screw, statically dewatered and discharged into a container. The benefits of the HUBER Complete Plant Hydro Duct ROTAMAT® Ro5 HD Fully integrated screenings separation, washing and dewatering in one system Very high levels of grit separation of 95% of grain size 0.20mm (confirmed by the University of Erlangen) For any throughput up to 150 l/s (540 m3/h) Large surface for grease separation with automatic grease removal system Optionally integrated emergency bypass possible Optional integral grit washing system Above-ground or underground installation Small footprint and space-saving compact design Optionally available without inlet screen Completely made from stainless steel (including the screws)[...]

[...]With aerated or optionally unaerated grit channel Grit trap designed accordance with international standards Separate grease trap with semi-automatic grease removal (optional) Integrated grit washing (optional) For reasons of operational safety the first step of sewage treatment works is generally mechanical wastewater pretreatment including: Fine screening Screenings treatment Grit separation Grit discharge Separation and removal of fat and grease Integrated grit washing Complete wastewater pre-treatment is essential for ensuring smooth operation in wastewater treatment plants, as it prevents issues like blockages, wear, or silting that can lead to costly downtime or equipment damage. The HUBER Complete Plant ROTAMAT® Ro5 was first developed and supplied in the 1980s, and since then, it has become a reliable and highly favored solution for wastewater pre-treatment. Thanks to its robust design and reliability, it has been chosen by hundreds of consulting engineers and plant operators worldwide. Planning and installation of our HUBER Complete Plant ROTAMAT® Ro5 units is not only quick and easy, but also saves considerable construction costs. In fact, they are even acknowledged as state of the art in the 4th edition of DWA’s Handbook for mechanical wastewater treatment. Design and function Fine screening Depending on the specific conditions and data, such as peak flow, screenings load and grit load, one of the following HUBER screens is selected: HUBER Fine Screen ROTAMAT® Ro1 ‒ Bar spacing 6 or 10 mm HUBER Rotary Drum Fine Screen ROTAMAT® Ro2 ‒ Bar spacing 1 - 6 mm HUBER Micro Strainer ROTAMAT® Ro9 ‒ Bar spacing 1 - 6 mm HUBER Multi-Rake Bar Screen RakeMax® ‒ Bar spacing 2 - 10 mm HUBER Belt Screen Esca Max® ‒ Perforation 3.5 - 10 mm HUBER Fine Screen STEP SCREEN® SSF ‒ Slot width 3 or 6 mm Other separation sizes can be supplied on demand. Separate details are available for all of these machines. Screenings treatment The HUBER screens Fine Screen ROTAMAT® Ro1, Rotary Drum Fine Screen ROTAMAT® Ro2 and Micro Strainer ROTAMAT® Ro9 include an integrated screenings press for dewatering and compaction and therefore do not require an additional wash press. Screenings washing with an optional IRGA unit is possible. Solids concentration of screenings: up to 45% DS. For HUBER Fine Screen STEP SCREEN® SSF, HUBER Belt Screen EscaMax® a separate HUBER Wash Press WAP® is usually installed behind these HUBER screens. Solids concentration of screenings, depending on the WAP® type used: up to 50% DS. Grit separation The grit channels of the HUBER Complete Plant ROTAMAT® Ro5 units are designed in accordance with international standards or the customer’s specific requirements. The grit channels are availabe as aerated or optionally unaerated units. The selection of the grit channel type (aerated or unaerated) depends on various criteria, such as the storm/dry weather flow ratio or whether further grit treatment systems are planned. Grit removal and discharge The settled grit is collected from the bottom of the grit channel with a horizontal grit screw. An inclined grit screw conveys, agitates and dewaters the collected grit. The classified grit slides from the upper end of the inclined screw into a HUBER Coanda Grit Washer RoSF4 T. Optionally, the material can be pumped to the grit washer . Grease separation and removal (optional) Separation of fats and grease is only available when used with aerated grit channels. The grease is collected in a separate chamber with the partition between the grit trap chamber and grease chamber consisting of a slotted scum board. The flow generated within the grit trap chamber by the aeration system transports the grease through the slotted scum board into the grease chamber. In contrast to many competitors, the floating fats and oils are skimmed off the water surface with a paddle scraper that is slowly pulled with a stainless steel rope. The paddle is shaped so that it removes virtually all floating matter from the grease trap. Anaerobic degradation of fat and grease, and there-with odor nuisance, is thus prevented. Optional integrated grit washing In this case the horizontal grit conveyor transports the separated grit fractions directly into a grit washer which is integrated at the Complete Plant outlet. Due to a defined introduction of upwardly directed service water the grit situated within the lower part of the grit washer is fluidised within the flow enabling the lighter organic particles to be separated from the dense grit particles. The separation of the lighter organic particles from the dense grit particles is supported by a rabble rake. After removal of the organic material the clean grit is automatically removed by a classifying screw, statically dewatered and discharged into a container. The benefits of the HUBER Complete Plant ROTAMAT® Ro5 Dependable, complete and compact headwork unit performing the following process steps: Fine screening Screenings washing (optional) Screenings dewatering Grit separation Grit dewatering Grit trap aeration (optional) Grease separation and removal (optional) Optional integrated grit washing Removal efficiency in accordance with international standards (DWA) with Qmax: 90 % of 75 mesh grit (particle diameter 0.2 – 0.25 mm) (confirmed by the University of Erlangen) Throughput capacity up to 300 l/s (1,080 m3/h) Separate grease chamber with automatic grease removal (optional) Completely encased unit, no odor nuisance Frost protection for outdoor installation (optional) Above-ground or underground installation More than 2,500 installations Completely made of stainless steel (including the screws)[...]

[...]Contact Drying of Sewage Sludge Partial drying of sewage sludge for recycling in fluidized bed incineration plants. Water evaporation per dryer: 2 to 6 t/h Dewatered sludge throughput per dryer: 6 to 12 t/h * DR throughput capacity per dryer: 1.5 to 6.0 t/h * Heating medium: Saturated steam up to 10 bar(a) * dependent on inlet and outlet DR Thermal drying of sewage sludge is an indispensable process component to ensure the sewage sludge has the right dry residue. The subsequent mono-incineration of the sewage sludge achieves an enormous reduction in volume and mass and provides for the recovery of phosphorus. Design and Function The HUBER Disc Dryer RotaDry® is designed for homogeneous partial drying of dewatered sewage sludge. Due to its compact design and high specific water evaporation, it is not only ideally suited for use in new sewage sludge mono-incineration plants, but also for capacity expansions of existing plants. The dryer can dry exactly to the required DR content and thus enable a selfsustaining combustion in the fluidized bed incinerator. The HUBER RotaDry® is available in different sizes, so that a water evaporation of about two to six tons per hour and dryer can be achieved. By using different disc diameters and numbers of discs, the heating surface can be optimally adapted to the amount of generated sludge and the dryer can be operated in the ideal capacity range. The heat requires for drying is provided and, depending on the size of the plant, electricity is also generated by means of steam turbine. A reliable condensate removal system , an innovative concept for moisture control, an optimized feed and a steam control line with minimized pressure loss characterize the HUBER Disc Dryer RotaDry® as the perfect sewage sludge dryer in combination with a monoincineration plant. All dryers are optionally available with jacket heating. Vapour condensation The overall dryer system always includes the condensation of the vapours produced by the disc dryer. Depending on the project-specific conditions, there are various possibilities here. Tube bundle condenser (indirect condenser) Compact design to maximise the extraction steam for district heating, as heating water is raised to the required temperature level directly in the condenser. Injection condenser (direct condenser) Circulating and cooled vapour condensate is sprayed in the head of the condenser to knock down the condensable vapours. Robust and universal design. Multi-stage condensation system Consisting, for example, of a sludge preheater (for energy optimization and polymer consumption reduction in the dewatering process) and an injection condenser as residual condenser. Ease of maintenance disc dryer Maximum reduction of the activities during walkarounds The main rotor bearings and the discharge screw bearings are supplied with automatic grease lubrication. Highly efficient direct drive with peripheral speed adjustment capability. Wear-optimised driving style and startup under load possible. Discharge screw is easily accessible and removable for replacing wear plates and screw spiral. The benefits of the HUBER Disc Dryer RotaDry® Compact design The HUBER Disc Dryer RotaDry® convinces by its compact design, which allows the dryer to be installed even on a small footprint or to be integrated into existing plants. Proven and durable technology The many years of successful use of disc dryers in combination with sewage sludge incineration plants demonstrate the robust technology of the process. High specific water evaporation capacity By heating the rotor discs and optionally the jacket, a high volume-specific water evaporation can be achieved. Competent partner Thanks to the cooperation between HUBER and OESTERGAARD, the customer is offered the best possible solution, both in terms of process and design. Maintenance-friendly dryer Minimal effort for operating personnel thanks to automatic grease lubrication and low-maintenance direct drive. Extended service life By using a special welded construction for the discs, the minimum permissible residual wall thickness can be reduced. The service life of the rotor is thus extended to a maximum. Control concept adapted to mono-incineration plants In the event of fluctuating sludge quality, the DR measured online can be included in the control. Secure condensate drainage Reliable condensate drainage from the discs due to the omission of a syphon pipe.[...]