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[...]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[...]

[...]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.[...]

[...]Cable operated coarse screen for reliable removal of bulky material: Protection of pumping station Seawater intake Surface water intake Sewage treatment plants Screen sizes: Screen width: up to 4 m. Wider on request. Discharge height above channel floor: up to 30 m. Deeper on request. Bar spacings: ≥ 16 mm Installation angle: 70-90° Design and Function The HUBER Grab Screen Trashlift can be easily retrofitted into existing channels, even an installation without channel recesses is possible. Waste water is screend via a coarse bar screen /trash rack with the collected screenings being removed by a hoisted grab cleaner with with high operating reliability. The HUBER Grab Screen Trashlift is operated in a cyclical operation mode with the grab cleaner being mounted to two load ropes and one grabcontrol rope hoisted by a three winch system. Opening and closing of the grab cleaner is achieved by an independent winch. For an optimum discharge of the collected screenings a scraper automatically discharges the screenings and cleans out the grab cleaner. The benefits of the HUBER Grab Screen TrashLift Reliable removal of bulky material with high operating reliability Easy to retrofit into existing channels Installation without channel recesses possible High capacity grab with replacable rake teeth Two speed control of grab cleaner: Maximize screenings discharge capacity Optimum cable routing: Maximize cable lifetime Scraper and traversing grab at discharge position: Optimum screenings discharge[...]

[...]Very high screenings removal capacity and separation efficiency with low head loss Simple and robust design adapted to project-specific requirements Variable cleaning intervals and speeds Various design options enable use for coarse and fine screening of large dirt loads The powerful Multi-Rake Bar Screen RakeMax® V cleans surface water even with high dirt loads Due to the increasing pollution of surface water, operators of water withdrawal systems are faced with the challenge of effectively removing contaminants through mechanical cleaning. The extent of surface water withdrawal from rivers and seas is also growing, for example due to increasing drinking water production via desalination plants, the use of renewable heat from river water, its use for cooling purposes, or for the generation of hydrogen. 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. Design and Function of the HUBER Multi-Rake Bar Screen RakeMax® V Our decades of experience in planning, project management and after-sales service enable us to perfect the Multi-Rake Bar Screen RakeMax® V to suit any customer needs. The screen offers excellent versatility for use in a wide range of water qualities and dirt loads. Combined with modern engineering and manufacturing methods, this guarantees our customers a long service life of the RakeMax® V with high reliability and low maintenance. The HUBER Multi-Rake Bar Screen RakeMax® V is a coarse screen with front flow in the channel as the first stage for screening surface water. The RakeMax® V can also be used as a fine screen. As the water to be screened flows through the bar rack, the impurities are reliably retained by the bars. The retained material accumulates on the bar rack, crea-ting an additional filter effect, which further increases the screen’s separation efficiency. The cleaning rakes, which are attached to the chain system, are moved continuously upwards through the bars by the rake drive and transport the dirt load out of the channel. The separated material is discharged into a container or downstream transport or dewatering unit via a discharge mechanism in the upper part of the screen. The cleaning elements attached to the chain system can easily be adjusted to different requirements, enable project-specific design of the screening discharge capacity. This is especially favourable for high solids loads. The discharge height of the RakeMax® V above the ground is very low. It is designed specifically for the project depending on the installation height of the planned screenings discharge. The design ensures that no impurities fall back into the incoming sewer. The RakeMax® V can be operated manually, with time control or automatically with water level differential measurement. An integrated overload protection device ensures that the screen drive switches off in the event of a blockage. The HUBER Multi-Rake Bar Screen RakeMax® V is ideally suited for stable surface water withdrawal from rivers and seas requirements and reliably removes high dirt loads from the water. Thanks to innovative solutions, the RakeMax® V can also meet special requirements such as the removal of jellyfish and seaweed or efficient water withdrawal without harming fish. HUBER has supplied numerous machines for new plants and the modernisation of existing plants worldwide. High-quality screening machines ensure smooth water intake and reliably protect downstream systems from damage caused by contamination. Sizes and process engineering data Channel width up to 4 m Channel depth up to 25 m Installation angle up to 90° Bar spacing: 2 – 100 mm Flow rates of up to 80,000 m³/h per channel Numerous machines for new plants and the modernisation of existing plants worldwide Success stories Paper production / Germany Complete solution from HUBER (mechanical and electrical installation) Combination of coarse and fine screening Optimised plant concept with perfect integration into the construction of the overall structure for cooling and process water extraction 1x HUBER Multi-Rake Bar Screen for coarse screening Irrigation for agriculture / South Africa Timely installation in cooperation with local partners Robust low-maintenance machines that efficiently protect the pumps for the irrigation canal system from contamination High reliability over many years of operation 3 x HUBER Multi-Rake Bar Screens Electricity generation from hydropower / Switzerland Modernisation for a water power plant in the Swiss Alps Coarse screening must be carried out on water from a water reservoir to protect the water turbines Installation at over 2,000 m above sea level was logistically extremely demanding due to the difficult-to-reach location; transport to the construction site took place by helicopter 1x HUBER Multi-Rake Bar Screen Advantages of the HUBER Multi-Rake Bar Screen RakeMax® V Throughput – very low headloss with high separation efficiency Discharge capacity – short cleaning intervals to increase the machine’s discharge capacity Discharge capacity – optionally available with buckets for high quantities of jellyfish or for seaweed Installation and assembly – quick and easy installation of the machine in the structure Easy maintenance – all maintenance steps can be carried out from the operator level Increased corrosion resistance thanks to a suitable selection of materials or corrosion protection systems Variable cleaning speed to optimise machine runtimes Automatic wiper system – no washing water or brushes required for cleaning[...]

[...]Insertable entrance aid, design certification in accordance with DIN 19572 Made of 1.4307 (AISI 304 L) stainless steel, for safety access ladders with 400 mm or 500 mm width with guard rail and safety climbing devices. Access ladders must have a handhold at their exit. This requirement is deemed to be fulfilled if one or both handles of a ladder project at least 1,1 m beyond the exit height. Completely shielded arc welded, acid-treated in a pickling bath and passivated. Optionally available in: 1.4404 (AISI 3016 L) stainless steel Pivoted design, type EH FSS D, for comfortable attachment of the safety belts[...]

[...]Sludge dewatering with Efficient performance data Maximum operational safety Optimized operating and disposal costs The efficient and cost-effective Q-PRESS® series offers: Feed capacity up to 540 kgDR/h Four sizes available High dewatering performance Low energy demand Easy operation Compact, enclosed design Optional mobile units Design and Function Sludge conditioned with flocculant is pumped via a flocculation section directly into the cylindrical filter basket of the HUBER Screw Press Q-PRESS® wherein an auger rotates at a very slow speed. The geometry of the auger continuously reduces the volume in the filter basket so that free water is pressed out of the sludge. The auger pushes the increasingly thicker sludge towards an annular clearance past a pneumatically adjustable pressure cone at the discharge end. A scraper on the screw shaft permanently cleans the filter basket from inside due to the rotation of the shaft. A stationary spray bar backwashes the filter basket of the HUBER Screw Press Q-PRESS® periodically and segment by segment from the outside. For sizes 620.2 and above, the dewatering process remains uninterrupted during backwashing. Parameters used for adjustment and control include not only the sludge feed and flocculant dosing and admixing, but also the screw shaft speed, the sludge feeding pressure and the pneumatic counterpressure of the discharge cone. Innovation and Special Applications Energy efficiency: The screw drives exceed the current energy efficiency standards of electric motors. Due to maximised electrical efficiency the HUBER Screw Press Q-PRESS® can therefore be operated with higher solids throughputs. Dewatering results: Specially developed scrapers on the screw shaft permanently and reliably clean the inner filter surface with every rotation of the screw. Free water can thus very easily run off. As a result, dewatering efficiency increases and flocculant consumption is reduced. Due to the significantly enlarged open filter surface filter baskets with the same bar spacings are able to handle higher hydraulic loads without impairment of filtrate quality. The outside of the filter is cleaned without interrupting the dewatering process. The predewatering and press zone can be washed independently of each other. Rewetting of press sludge through washing is reduced to a minimum especially in the press zone without neglecting the important washing in the predewatering zone. Maintenance: As an option, the three segments of the filter baskets are available as axially divided segments. Only the upper half of the basket needs to be removed for maintenance. The lower half of the filter basket can be removed from the screw shaft by means of a special mechanism but remains inside the filtrate chamber of the Q-PRESS® during maintenance. This saves a lot of time, reduces space requirements and the need for using lifting devices for maintenance. Dewatering of thin sludges Due to pump feeding, large volumes of sludge water are removed already in the pre-dewatering zone. This permits cost-efficient dewatering of thin sludges with a solids concentration < 1 % without the need for prior thickening. Typical dewatering results of 18 – 25 % DS can be achieved, with a sludge volume reduction up to > 97% in a single step. This saves investment and operation costs for preceding sludge thickening. Variable sludge characteristics Dewatering performance is usually impaired and operator attention increased by frequently varying sludge quality. Our HUBER Screw Press Q-PRESS® automatically selfadjusts to over- and underloading. A control loop makes sure that optimal operation and performance is always maintained. By this, our Q-PRESS® is flexible with varying sludge qualities and need minimised operator attention for reliable operation. Benefits of HUBER Screw Press Q-PRESS® High dewatering Defined sludge volume reduction in the screw press Continuously adjustable counterpressure at the discharge end Filtrate discharge enhanced by gravity due to inclined installation Unique scraper system for permanent cleaning of the inner filter surface Significantly increased free filter surface Continuous dewatering Low total investment costs Compact design and small footprint Easy connection of the screw conveyor Optional tube flocculator Integrated support legs Vibration-free, virtually noiseless operation Fully enclosed design Optional extraction of air Reliable operation with little downtime Virtually no wear because of < 1 rpm screw rotation speed Sturdy stainless steel design Dividable filter baskets available as an option Simplified filter dividing mechanism Easy access through large inspection openings Minimal space requirements for maintenance Simple self-monitoring control strategy Proven in thousands of installations Minimum operation costs Outstanding energy efficiency Specific power consumption < 6 kWh/t DR Little operator attention (< 20 min/day) High solids capture rate > 97 %[...]

[...]Compact, enclosed unit Reliable operation, minimised operator attention Low operation costs High throughput capacity up to 40 m³/h The purpose of sewage sludge thickening Sewage sludge, particularly secondary sludge, is characterised by low solids concentrations and high volumes. Effective sludge thickening is essential as a preliminary step for the efficient treatment of sewage sludge, such as in digesters, and is also crucial when liquid sludge needs to be transported for further processing or utilisation. The following criteria are decisive for the selection of the thickening process: Performance and efficiency Reliable operation Easy maintenance and operation Design and Function A slightly inclined, slowly rotating filter disc covered with a filter cloth separates flocculated sludge from filtrate. A baffle plate distributes the inflow evenly across the entire filter radius. Sludge liquor collects on the bottom section of the filter disc so that a low hydrostatic pressure devel­ops enhancing sludge liquor drain-off. Flexibly supported plows divide and move the sludge layer on the disc and open up furrows so that water can easily drain through the filter cloth, thus enhancing the filtration effect. At the sludge discharge outlet, a scraper pushes the thickened sludge from the disc. The filter cloth is cleaned by a spray bar so that the solids are washed back into the sludge to ensure the filtrate water is clear. Efficiency Efficient use of water The HUBER Disc Thickener S-DISC needs little wash water at a very low pressure anyway but the need for adding external wash water can completely be eliminated by using filtrate for filter cleaning. Saving water resources Reducing the load on local water treatment facilities Reducing operation costs Hydraulic load reduction Virtually no additional demand for electrical energy for pressure increase Specific installation conditions As 80 % of the filter surface of the HUBER Disc Thickener S-DISC are permanently used, a very compact and small machine design is possible. Minimal space requirements for installation Ideal as mobile installation Easy container installation Easy retrofitting No need for foundations or service platforms Variable inlet and outlet arrangement The benefits of HUBER Disc Thickener S-DISC Performance and efficiency Sludge volume reduction > 85 %, Typical thickening results > 6 % DR Low polymer consumption, Specific power consumption < 0.03 kWh/m³ Minimum operator attendance requirements of less than 10 minutes a day Wash water demand < 5 % of sludge throughput Wash water pressure < 3 bar Filtrate water can be used as wash water for the spray bar. Typical separation efficiency > 97 % Reliable operation Robust design Stainless steel filter cloth for long life Slow filter rotation < 5 rpm Low maintenance Easy and safe to operate No need for lubrication Easy access for inspection, maintenance and operation Proven in hundreds of installations Throughput, polymer dose and filter rotation speed can be adjusted to optimise the degree of thickening. Big inspection openings to facilitate maintenance and inspection Encased thickener suitable for the treatment of strong-smelling sludge, protecting operators against harmful spray water aerosols Automatic control technology Suitable for unattended operation over 24 hours per day[...]

[...]Excellent separation efficiency due to its perforations Reliable cleansing of the perforated plates with a rotating brush 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. HUBER Belt Screen EscaMax® Each end of the filter belt of the HUBER Belt Screen EscaMax® is connected with a drive chain that is driven by chain wheels. Each chain wheel is driven by a sprocket on a common shaft and a flange mounted gear motor. When they have passed the upper turning point the screening elements are cleaned by an internal spray nozzle bar which operates against screening direction. A separately and continuously driven roller brush enhances the cleaning process additionally. The roller brush operates against the travel direction of the filter belt, this improves cleaning efficiency significantly (see detail sketch). Another advantage of this cleaning method is that a majority of the screenings, including abrasive material, are removed from the screening elements already in the first step of the cleaning process by the spray bar. It is obvious that the wear of both the screening elements and the roller brush is considerably reduced in this way. The sturdy HUBER Belt Screen EscaMax® is able to reliably cope with even high amounts of gravel and grit. The two-dimensional screening elements prevent especially long fibres from passing through the screen and achieve thus the maximum separation efficiency. 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 odour-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 high screenings discharge capacity Low headloss Low installation height above ground level even in deep channels Control-independent safety system The HUBER Multi-Rake Bar Screen RakeMax® is perfectly suited to serve both municipal or industrial wastewater, and process water screening. The cleaning elements, attached to the chain system, can easily be adjusted to different requirements. As the cleaning elements can be variably adapted, the screenings removal capacity is then adjustable. This is especially favourable for high solids loads. The cleaning elements, consisting of the rake and comb plate, are screwed and thus independently replaceable. Due to its different design options the RakeMax® covers a very wide range of applications, allowing us to respond to the individual needs of our customers and to specific constructional and hydraulic site conditions. Function of the HUBER Multi-Rake Bar Screen RakeMax® Due to the specific design of the RakeMax® screen its height above floor is very low and, even in case of deep channels, only dependent on the installation height of the downstream screenings transport or washing system. Both ends of the cleaning elements are connected to drive chains. Each chain is driven by a sprocket on a common shaft and a flange mounted gear motor. Furthermore, defined meshing of the cleaning rakes with the bar rack ensures high operating reliability. An electro-mechanical overload protection system (spring assembly with deflection monitoring) reliably ensures that the process is interrupted when the preset overload is reached, or in case of a blockage. Model Variants and Options RakeMax® J The RakeMax® J screen is a modified version of the proven HUBER RakeMax® screen. In contrast to the standard RakeMax® design version, the RakeMax® J screen does not have straight bars, the screen bars are bent in the bottom section, i.e. curved towards the sewer base. It is also this special form of the screen bars which gives the screen its name as the letter ‚J‘ has approximately the same shape as the curved screen bars. The screen rake moves along the curvature of the screen bars and describes a segment of a circle in this section. The flat inclination angle of the screen bars in the sewer base section increases the cross-sectional flow area of the screen with the result of reduced hydraulic losses and a reduced flow velocity in the gaps between the screen bars. RakeMax® HF The RakeMax® HF excellently combines the advantages of the well-proven RakeMax® with the positive properties of a screen with a bar rack that is installed with only a small inclination. The RakeMax® HF has a L-shaped design with two different screen sections: The flat bottom section provides a large screening surface and favourable hydraulic conditions, the steep conveying section ensures screening on a small footprint. Due to the extremely flat installation of the bar rack of 30° the screen section through which the flow passes is always double the depth of the approaching flow. Material removal from the screen starts virtually right at the bar rack mounted flat to the channel bottom so that any accumulation of disturbing material is eliminated. The optimal approaching flow conditions and large effective bar rack surface ensure a high hydraulic throughput capacity. RakeMax® Hybrid The special feature of this type of screen is a bar rack that is manufactured from highly wear-resistant fibreplastic composite. By adding materials like glass fibre or resins for example the profile bars are made suitable for applications with high mechanical loads and excel for their very high stability, deformation resistance and resistance to wear. Due to their high breaking elongation and elastic energy absorption the profiles retain their shape even under mechanical load, are highly flexible and return to their original shape. They also excel with a very high production precision, size accuracy and form stability so that even smaller bar spacings can reliably be maintained. Another advantage of the RakeMax® Hybrid screen are the individually replaceable screen bars for quick and safe handling without the need for welding work. Safety Vision The innovative HUBER Detection System Safety Vision enables the screen to "see" the screenings and reliably identify potentially critical contaminants. This effective protection mechanism reliably prevents damage to the screen or the downstream equipment, which not only increases the availability of the machines involved, but also improves the operational safety of the entire plant technology. In addition, the adaptive operation based on event detection means that the machine can always be optimally utilised and the running time of downstream machines can be optimised according to the actually necessary demand. The benefits of the HUBER Multi-Rake Bar Screen RakeMax® Very low headloss – high separation efficiency Defined meshing of the cleaning rakes with the bar rack ensures a high operating reliability. Screen installation possible without a bottom step Compact design with a low installation height above ground level Completely odour-encased screen with easy to remove covers Easy-to-retro fit 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. Not hindered by gravel or grit Simple and easy-to-access chain tensioning unit All parts in contact with medium (except the chain, pinion, drive and bearing) are made of immersion pickled stainless steel, optional stainless steel chains and chain wheels. High screenings discharge capacity through adjustable cleaning elements Independently replaceable rake and comb plates Automatic scraper mechanism, no service water required[...]

[...]With integrated screenings washing and compaction For channel installation or supplied in a tank With optional frost protection for outdoor installation Both municipal wastewater treatment plants and industrial applications require mechanical treatment as a first treatment step to remove as much as possible of the floating, settling and suspended material. The aim is to achieve the maximum separation efficiency under the prevailing hydraulic conditions. Operating reliability, efficiency and hygienic operation are important factors for a mechanical separation plant. The HUBER Micro Strainer ROTAMAT® Ro9 operation is based upon a unique system that allows combination of screening, washing, transport, compaction and dewatering in a single unit. Depending on the screen bar spacing or perforation and screen size (up to 700 mm screen basket diameter), the throughput can be individually adjusted to specific site requirements. The HUBER Micro Strainer ROTAMAT® Ro9 is completely made of stainless steel and acid treated in a pickling bath. The screen can be installed either directly in the channel or in a separate tank. Design and Function Whilst the wastewater flows in through the open front end of the screen basket and through the screen bars or perforations, solids are retained by the screen basket, whereby the separation of floating, settling and suspended solids is dependent upon the screen bar spacing or perforation size. Blinding of the screen surface generates an additional filtering effect so that solids can be retained that are smaller than the bar spacing or perforation. The machine starts to operate when a certain upstream water level is exceeded due to screen surface blinding. A robust stainless steel screw removes the screenings from the screen basket surface. Additional cleaning is achieved by wear-resistant brushes fitted to the screw flights. The screw conveyor transports the screenings through a closed and inclined pipe. Whilst the screenings are transported, the screw conveyor dewaters and compacts them without any odour annoyance prior to discharging them into the customer‘s container or a subsequent conveying unit. The HUBER Micro Strainer ROTAMAT® Ro9 is completely made of stainless steel and acid treated in a pickling bath. The screen can be installed either directly in the channel or in a separate tank and also available with optional frost protection for outdoor installation. Product variants HUBER Micro Strainer ROTAMAT® Ro9 XL with an extended screen basket The HUBER Micro Strainer ROTAMAT® Ro9 XL version with an extended screen basket for a higher throughput is especially suited for narrow and deep channels. The long screen basket (400/500 mm diameter) is able to handle greatly varying dry weather and stormwater flows. Extended screen basket available in two lengths Size 400 and 500 For greatly varying inflows Maintenance-free lower ceramic bearing HUBER Micro Strainer ROTAMAT® Ro9 EC The HUBER Micro Strainer ROTAMAT® Ro9 EC is a low-cost version of the HUBER Micro Strainer ROTAMAT® Ro9 with the following special features: Best cost/performance ratio No additional wash water required due to the reduced screenings compaction For installation directly in the channel or in a tank Size 300 and 500 Wedge wire screen basket or perforated plate basket available The Benefits of the HUBER Micro Strainer ROTAMAT® Ro9 Low investment costs Quick and easy installation, even as a retrofit Reliable self-cleaning of the screening area by means of the stainless steel screw flights and wear-resistant brushes All stainless steel construction, therefore virtually unlimited life and no maintenance Encapsulated, odour-free plant Low disposal costs due to integrated screenings washing and compaction Optional frost-protected unit for outdoor installation – No building required[...]