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[...]The HUBER Wash Press WAP® – A cost-effective method of screenings washing! Screenings Wash Press for any application Dewatering perfomance up to 45 % DS Weight reduction up to 75 % Throughput up to 12 m³/h Automatic wear detection Completely made of stainless steel Design and Function The screenings to be treated are discharged directly from a screen or conveyor (e.g. screw conveyor) into the feed trough of the Wash Press. A robust conveying and com­pacting screw transports the screenings into the wash zone where they are exposed to directed and powerful turbulence created by automatic introduction of wash water (service water). The turbulence achieves perfect sep­aration of organic particles and thus effective screenings washing. The washing intensity and cycles are individual­ly adjustable. The washed screenings are further conveyed in the rising pipe to the press zone where they are pressed and dewa­tered by the compacting screw to a DR content of 35 - 45 %. The wash water from screenings compac­tion which is rich in carbon is discharged back into the waste water stream. Automatic cleaning of the wash water collecting tank under the machine is possible. The washed and compacted screenings are finally transport­ed through the conical discharge pipe into a skip. For an optimised maintenance strategy, machine sizes 2-12 are equipped with wear detection of the compact­ing screw in the press zone. The system automatically detects the ideal time for maintenance of the auger. The HUBER Launder Channel HLC Feed System for Screenings Wash Presses The HUBER Launder Channel operates discontinuously in a batch mode or continuously. The screenings to be treated drop into the launder channel from one or several screens. Wastewater or service water is used to flush the screenings into the wash press. The flushing water serves also as wash water for screenings washing. HUBER Launder Channel HLC systems can be adjusted to suit customer-specific requirements. To ensure maximum operating reliability the launder channel control system can be designed to use redundant wash press systems and operate the individual units as needed via according valve control. Benefits of the HUBER Launder Channel Feed System Cost-effective, low maintenance solution High operational reliability Up to 40 m channel length Individually adaptable discharge situations due to flexible launder channel arrangement Wastewater or service water as flushing water Stainless steel design for corrosion resistance The benefits of the HUBER Screenings Wash Press WAP® Dewatering performance of up to 45 % DR Volume, weight and disposal cost reduction by up to 75 % Screenings throughput capacity of up to 12 m3/h Completely made of stainless steel (including the com­pacting screw) Acid treated in a pickling bath for corrosion protection Return of carbon-rich filtrate to the wastewater Insensitive to coarse material Screened wastewater or process water can be used as wash water Flexible feed trough lengths Fast payback due to great transportation and disposal cost savings Automatic wear detection of the compacting screw[...]

[...]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)[...]

[...]With integrated screenings press With integrated screenings washing More than 2000 installations worldwide Available with wedge wire ("Ro2"), perforated plate ("RPPS") and folded perforated plate ("STAR") screen basket Wastewater treatment plants and industrial applications for process and wastewater treatment 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 reliabily achieve the maximum separation efficiency under the prevailing hydraulic conditions. The HUBER Rotary Drum Fine Screen ROTAMAT® 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 (0.5 - 6 mm) or perforation (1 - 6 mm) and screen size (screen basket diameter of up to 3,000 mm), the throughput can be individually adjusted to specific site requirements. The HUBER Rotary Drum Fine Screen ROTAMAT® is completely made of stainless steel and acid treated in a pickling bath. Design and Function The HUBER Rotary Drum Fine Screen ROTAMAT® 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 (0.5 - 6 mm) or perforation (1 - 6 mm) and screen size (screen basket diameter of up to 3000 mm), the throughput can be individually adjusted to specific site requirements. The HUBER Rotary Drum Fine Screen ROTAMAT® is completely made of stainless steel and acid treated in a pickling bath. HUBER Rotary Drum Fine Screen ROTAMAT® units are either installed directly into the channels, or are supplied as tank-mounted units, with an inclination of 35°. The wastewater flows into the open end of the inclined screen basket and then through the screen. Floating and suspended materials are retained by the screen basket. 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 basket starts to rotate when a certain upstream water level is exceeded due to screen surface blinding. The rotating screen drum lifts the screenings and drops them into the centrally arranged trough. Screenings removal from the drum is supported by a scraper brush and a spray nozzle bar. A screw conveyor in the trough rotates with the drum and transports the screenings through a closed and inclined pipe. The conveying screw transports, dewaters and compacts the screenings, without any odour nuisance, and discharges them into the customer‘s container or a subsequent conveying unit. Additional Model Variants and Options HUBER Rotary Drum Fine Screen ROTAMAT® PRO The special design of the HUBER Rotary Drum Fine Screen ROTAMAT® PRO series isolates the water level in the trough from the water levels upstream and downstream of the screen. This is achieved with a closed system below the perforated plate of the trough. The liquid phase is removed from the closed system by a suction pump which pumps the flow back to upstream of the machine. The solids are washed, compacted and discharged by a conveying screw. This operation method permits continuous screen operation with a constant water level upstream of the machine. Continuous system operation significantly increases throughput capacity. The PRO system can even be reliably applied with high downstream water levels and is especially suitable for pump applications. As backup of water into the trough is impossible, screenings discharge via the removal screw can reliably be ensured. It is easy to retrofit into any type of HUBER Rotary Drum Fine Screen ROTAMAT®. HUBER Perforated Plate Screen ROTAMAT® STAR The HUBER Perforated Plate Screen ROTAMAT® STAR is especially designed for fine apertures and for large wastewater volumes in a gravity line with low headloss. Its design is based on the well-proven ROTAMAT® principle: screenings separation, washing, transport, and compaction in one unit. To improve screen throughput capacity, the RPPS Star screen has a star-shaped screen basket with a zigzag folded surface. The star-shaped folded plate of the HUBER Perforated Plate Screen ROTAMAT® STAR provides an increased free screen surface and an approximately 30 % increase in throughput capacity with the same nominal diameter. The STAR design combines the benefits of maximum free screen surface and very high separation efficiency. This efficiency-improving innovative development permits for optimal and economical system dimensioning, it is space-saving and reduces civil costs. Installation is suitable into existing channels or for tank installation. HUBER Perforated Plate Screen ROTAMAT® STAR units are preferably used with perforations of 1 / 1.5 / 2 mm for installation on municipal and industrial wastewater treatment plants. The screens are also applied to protect downstream membrane systems by removal of hair and fibres. They can be installed in the mechanical treatment stage or downstream of grit traps. Special PRO design screens are available for applications where an additional increase in throughput capacity is required. Integrated Screenings Washing System IRGA To optimise the treatment process an integrated screenings washing system IRGA can be provided and also easy retrofitted. It improves the carbon/nitrogen ratio of the pretreated wastewater. In addition, the IRGA reduces the costs of screenings disposal to an optimal cost/performance ratio. The HUBER ROTAMAT® principle allows for integration of the screenings washing system directly in the trough and/or the lower end of the rising pipe. As the soluble matter is separated from the inert material, faeces are virtually completely washed out which leads to a significant weight reduction by approx. 50 % and improved operating and hygienic conditions. The dewatering performance of up to 40 % DS can be increased to more than 45 % DS by adding a high pressure unit (HP) to the integrated screenings washing system IRGA. This combination guarantees the maximum dewatering performance and reduces disposal and operating costs. Benefits of the HUBER Rotary Drum Fine Screen ROTAMAT® Ro2 / RPPS / STAR Low headloss – High separation efficiency: Due to the drum‘s shape and 35° installation the screen area is much larger than that of a vertical or steeply inclined screen, which results in a low headloss, high separation efficiency and maximum throughput. No by-passing: The entire flow enters the screen drum through its open front end and can only leave the drum through its screen area. This prevents plant overflow and guarantees that the screenings are always retained within the screen drum. Several functions combined in one system: The ROTAMAT® Screens perform the functions of screenings removal, transport, washing, dewatering and compaction in a single space-saving unit. An additional bagging unit guarantees operation of the entire system without odour nuisance. Outdoor installation: For frost-proof outdoor installation, the HUBER Rotary Drum Fine Screen ROTAMAT® can be supplied with a heating wire and thermal insulation. 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. Retrofitting: The design of the ROTAMAT® Screens allows for later modification so that the systems can be adapted to changing requirements. The heating and/or integrated screenings washing can be retrofitted. The bar spacing can also be reduced to meet more stringent requirements. Low maintenance: No lubrication. Regular checking and visual inspection are sufficient.[...]

[...]With integrated screenings press With integrated screenings washing Compact design Operating reliability, efficiency and hygienic operation are important factors for a mechanical separation plant. The aim is to achieve the maximum separation efficiency under the prevailing hydraulic conditions. The HUBER Fine Screen ROTAMAT® Ro1 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 (6 or 10 mm) and screen size (screen basket diameter of up to 3000 mm), the throughput can be individually adjusted to specific site requirements. The HUBER Fine Screen ROTAMAT® Ro1 is completely made of stainless steel and acid treated in a pickling bath. Design and Function HUBER Fine Screen ROTAMAT® Ro1 units are either installed directly into the channels, or are supplied as tank-mounted units, with an inclination of 35°. The wastewater flows into the open end of the inclined screen basket and passes through the screen, where floating and suspended materials are retained by the screen bars of the screen basket. Blinding of the screen surface generates an additional filtering effect so that solids can be retained that are smaller than the bar spacing. At a certain difference of the water levels up- and downstream of the screen, which is caused by screen surface blinding, the rake arm situated on the axle centre starts to rotate. Its tines, extending completely through the screen bars, clean the basket, remove all the screenings, and lift them to a 12 o‘clock position. The screenings drop into the centrally positioned trough with integrated screw conveyor. The rake is then returned back through its 12 o‘clock position. During this return movement a hinged comb pushes the screenings off the rake so that the tines are additionally cleaned. With the rotational movement of the conveying screw the screenings are transported out of the trough and conveyed through the rising pipe. As the screenings are conveyed and compressed within the inclined pipe, they are dewatered and compacted without any odour annoyance prior to being discharged into the customer‘s container or a subsequent conveying unit. The benefits of the HUBER Fine Screen ROTAMAT® Ro1 Low headloss – High separation efficiency Due to the screen basket shape and 35° installation the screen area is much larger than that of a vertical or steeply inclined screen, which results in a low headloss, high separation efficiency and maximum throughput. 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. Reliable, self-cleansing operation Positive cleaning of the complete screen area is guaranteed due to full engagement of the rake‘s tines. The screen is unimpaired even by high pollution loads. Additionally, a single flow path guarantees that the screenings remain constantly inside the basket (in front of the screen area), i.e. screenings are not taken out of the wastewater and transported into the already cleaned downstream flow during the cleaning process. Several functions combined in one system The ROTAMAT® Screen performs the functions of screenings removal, transport, washing, dewatering and compaction in a single space-saving unit. An additional bagging unit guarantees operation of the entire system without odour nuisance. Outdoor installation For outdoor installations, the HUBER Fine Screen ROTAMAT® Ro1 can be supplied with a frost protection, combined with an additional insulation, if required. Retrofitting The design of the ROTAMAT® Screens allows for later modification so that the systems can be adapted to changing requirements. Both the heating and integrated screenings washing system for example can be retrofitted. Low maintenance No lubrication is required. Routine checks and visual inspections are sufficient to keep the system running smoothly.[...]

[...]Reliable separation of solids from wastewater Low headloss due to the large effective bar rack surface High screenings discharge capacity Well-proven design based on the RakeMax® principle The RakeMax® HF is a L-shaped multi-rake bar screen and like the RakeMax® screen belongs to the MAX family of HUBER screens. This screen has a flat and therefore hydraulically advantageous bottom section that transitions into a steep conveying section. This combines the benefits of the well proven RakeMax®, reliable solids separation and high screenings discharge capacity, with a low headloss due to a big effective screen rake surface. Design and Function The HUBER RakeMax® HF Multi-Rake Bar Screen is the ‘high flow’ version and further development of the successful HUBER RakeMax® Multi-Rake Bar Screen that is well-proven in thousands of installations. The RakeMax® HF screen consists of two different sections: The flat bottom section provides a large screening surface and favourable hydraulic conditions, the steep conveying section ensures screening on a small footprint. Material removal 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. The cleaning elements, attached to the chain system, can easily be adjusted to different requirements so that a highly variable screenings discharge capacity is achieved. This is especially favourable for high solids loads. Depending on the size of bar spacing, the bar rack design is either a flow-optimising bar or non-blocking wedge wire profile. 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. At the end of the bar rack cleaning cycle the cleaning elements are cleaned by a pivoted comb that reliably discharges the removed screenings into a downstream transport, washing or disposal unit. The easy to access and maintain drive unit is installed above the channel. Due to the screen’s compact design its height above floor is very low. HUBER Detection System 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. Benefits of the HUBER Multi-Rake Bar Screen RakeMax® HF High hydraulic capacity due to the extremely flat installation angle of the bar rack High operating reliability due to defined meshing of the cleaning elements with the bar rack No accumulation of disturbing material due to material removal from the screen starting virtually right at the bar rack mounted flat to the channel bottom Compact design Easy-to-retrofit into existing channels Completely odour-encased screen with easy to remove covers Installation without channel recesses possible Not hindered by gravel or grit 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. High screenings discharge capacity Uncomplicated later change of the bar spacing No additional consumables such as service water required for plant operation, except electric current[...]

[...]Increased separation efficiency through flow deflection in the bar rack Optimal hydraulic utilisation of existing channels Unsusceptible to grit, gravel and stones The HUBER Multi-Rake Bar Screen RakeMax® CF is perfectly suited to serve both municipal or industrial wastewater, and process water screening. Due to its different design options the RakeMax® CF 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. Design and Function The HUBER RakeMax® CF consists of a U-shaped stationary bar rack installed between the two screen frames, parallel to the flow direction of the wastewater. Whilst the wastewater flows into the open front side of the screen and out through both the left and right bar rack, solids are retained on the inner surface of the U- shaped bar rack. The solids retained on the bar rack lead to gradual blinding of the bar rack surface which has an impact on the level difference in the channel. Cleaning of the screen bars starts at a defined water level in the channel upstream of the screen. The RakeMax® CF achieves this with its cleaning elements attached to the chain system. The discharge capacity can be adjusted to individual requirements as the number of screening elements attached to the chain system is variable. Due to the specific design of the RakeMax® CF 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. If the screen operation is blocked, an electric control reliably protects the screen against damage caused by overload. At the end of the bar rack cleaning cycle the rake is positively cleaned by a pivoted comb which reliably discharges the removed screenings into a downstream transport or disposal unit. The easy to access and maintain drive unit is installed above the channel. The benefits of the HUBER Multi-Rake Bar Screen RakeMax® CF Increased separation efficiency through flow deflection in the bar rack Integrated emergency overflow Optimal hydraulic utilisation of existing channels 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 Not hindered by gravel or grit Easy-to-retrofit into existing channels, installation without channel recesses possible The screen is a sturdy self-supporting stainless steel construction and therefore 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, pinions, drives and bearings). The chains and chain wheels are optionally available in stainless steel. High screenings discharge capacity through a variable number of screen rakes Automatic scraper mechanism, no service water required[...]

[...]Prevents clogging and tressing in the pumping station Compact unit, easy to fit into confined spaces Dewatering and compaction of screenings Optional frost-protected unit for outdoor operation Sturdy, low-maintenance stainless steel design Pumps and lifting units are used where wastewater needs to be lifted to a higher level so that it can be passed further on by gravity. However, the solids contained within the wastewater frequently lead to pump failure. Labour-intensive manual cleaning is required to restore the function of the units, or they may need to be replaced, both resulting in high long-term costs. Reliable solids removal is therefore the only alternative to maintain the operating stability of the pumps. Design and Function The HUBER Pumping Stations Screen ROTAMAT® RoK4 is the ideal solution for this task, whether for new structures or refurbishment. Contrary to conventional screening systems which require manual cleaning, the screen surface of the HUBER Pumping Stations Screen ROTAMAT® RoK4 is cleaned automatically. The screen Vertically lifts the screenings, and dewaters and compacts them at the same time. The compacted screenings are discharged into a container or endless bagger for further disposal thus eliminating odour nuisance and pump failure due to clogging. The screen consists of a vertical perforated screen basket and a shafted auger in a vertical tube. The wastewater flows through an inflow connection and a chamber into the screen basket. Within the screen basket the flights of the screw are equipped with wear-resistant brushes for effective cleaning of the screen. As the screenings are gradually elevated by the auger, they are dewatered. The compacted screenings are discharged into a container or endless bagger thus eliminating odour nuisance. The screened wastewater flows off by gravity or is pumped to a higher level. The filtrate drains through a hose back into the inlet chamber. The top of the inflow chamber is open and serves as an emergency bypass so that the machine can be submerged without problems, e.g. in case of a power failure. The integrated bottom step prevents back-flooding into the sewer system and thus undesired deposits in the incoming sewer. The benefits of HUBER Pumping Stations Screen ROTAMAT® RoK4 Automatic screening, lifting and compaction in a single compact unit Optimal solids retention by means of two-dimensional screening (perforated plate) Prevent clogging and tressing in pump stations and manholes Integrated bottom step to prevent deposits in the incoming sewer Easy to install into existing structures Availability of completely submerging the screen[...]

[...]Pointing-the-way screening technology for 70° / 75° installation. Space-saving due to steep installation angle The new generation for big discharge heights and deep channels For high flow rates Lifting of screenings at channel bottom level The HUBER STEP SCREEN® System is widely accepted and successful due to its function and easy-to-follow operation principle as well as the simple cleaning method without any aids (self-cleaning effect according to the counter-current principle). It is furthermore easy to maintain and able to handle extremely big screenings volumes while it offers also a high operational reliability. Design and Function The motor linkage drive has been developed from the well-proven link system. To the benefit of our customers we intentionally avoided difficult-to-maintain chain drives. With the linkage type we are able to master the occurring bending moments on the lamellas, especially with high water levels. The screenings carpet is a structure of pores, which retain smaller particles than the actual slot width would allow. An additional separation effect is generated in this way: the filtration effect. Contacting us means speaking with a partner who has more than 30 years experience with screens, their layout, construction, manufacture, operation and after-sales service and is with thousands of references worldwide the unrivalled market leader in mechanical preliminary wastewater treatment. Benefits of the HUBER Fine Screen STEP SCREEN® SSV Function principle: Lifting of screenings at bottom level due to a special bottom step design. Gentle and complete screenings transport due to the counter-current principle Retrofitting or new plants: Optimally adjustable to individual constructional conditions (high discharge height, deep channel) due to the steep installation angle Flow rate: High capacity; the flow passes the screen surface only once Separation efficiency: Very high separation efficiency due to the narrow slot width and the produced screenings carpet Cleaning: Self-cleaning effect due to movable lamellas (no spray water required, no brushes) Operational stability: Reduced susceptibility to grit, gravel and stones whether installed with or without an invert step Protection against corrosion: Manufactured from stainless steel and acid-treated in a pickling bath Experience: Unrivalled for more than 30 years Pivoting arrangement: Removal of the subsequent wash press or conveying unit is not required.[...]

[...]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[...]

[...]Durable fine screen for screening surface water, offering high operational reliability and the best possible economy Compact machine with throughputs of up to 100,000 m³/h Innovative sealing concept for removing dirt from the clean water side Rugged design for maximum uptime and reliability Extremely maintenance-friendly operation with low operating costs Machine design allows for shorter channels thanks to reduced laminar flows at the machine outlet Plant operators need robust fine screening machines that effectively protect pumps and membranes from dirt particles being carried over to the clean water side. The decisive factor here is to optimise the flow behaviour of the water in the sewer as far as possible. As a rule, coarse screens are installed upstream of the fine screening machines, tasked with filtering particularly coarse impurities. 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. Depending on the requirement profile, the screening elements can be supplied in mesh or perforated plate design with different separation sizes. The screening elements are connected to a chain and powered by a drive motor. The chain is guided by a guide track in the lower area and a chain wheel in the upper area of the machine. During operation, dirt particles settle on the screening element. They are conveyed upwards by the movement of the screening elements and removed from them by a spray nozzle system arranged upstream of the screening elements and discharged into an externally arranged launder channel. Coarser dirt particles that do not adhere to the screening element are also conveyed upwards by additional carrier bars installed on the screening element. For environmental reasons, the machine can be equipped with fish buckets as an option to protect aquatic creatures. Thanks to the way in which the contaminated water flows into the machine from both sides through the filter elements and flows out of the DualMax® at the output, turbulent flows downstream of the fine screening machine are reduced. This permits a reduced distance to the pump and thus also a shorter channel on site. The selected frame design of the DualMax® minimises Safe and economical water withdrawal with the HUBER Band Screen DualMax® installation times and required construction work, as the machine can be installed as an entire fine screen or in assemblies in the channel. The DualMax® can be manufactured in stainless steel, duplex or super duplex depending on the project-specific requirements. A combination of stainless steel and cathodic corrosion protection is also available to enable safe machine operation in corrosive media for many years. 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: No carry-over of dirt particles to the clean water side to increase 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 Long service life thanks to suitable selection of materials and use of corrosion protection systems Fish-friendly solution – optionally available thanks to specially developed fish bucket and fish return system Variable speed of operation to optimise the machines' running times and discharge capacities Lower laminar flows at the machine outlet enable onsite optimisation potential thanks to shorter channels[...]