Search

[...]Sludge Acceptance Plant with Grit Trap and Grit Classifier Well-proven mechanical pre-treatment components combined within one plant With unaerated grit trap and integrated grit classifying screw For any type of septic sludge Reliable separation of all disturbing material Dependable and reliable in operation This type of plant is used for complete separation of screenings and grit. Well-proven mechanical pre-treatment components are combined within the HUBER Sludge Acceptance Plant ROTAMAT® Ro3.3. It consists of: Fine screen with integrated screenings press Unaerated grit trap with grit classifier Due to integration of all components in a single tank it is a very compact plant and odour annoyance is prevented. Complete treatment of the septic sludge is performed within a single unit. Key Features and Benefits of the HUBER Sludge Acceptance Plant ROTAMAT® Ro3.3 The HUBER Sludge Acceptance Plant ROTAMAT® Ro3.3 is an advanced solution designed for the complete separation of screenings and grit in wastewater treatment systems, particularly for handling s eptic sludge. The Ro3.3 combines trusted mechanical pre-treatment components to achieve optimal sludge treatment. It ensures that both screenings and grit are efficiently removed from the wastewater, preventing operational issues downstream. The system features an unaerated grit trap that effectively separates grit from the sludge, and an integrated grit classifying screw that further processes the grit. This combination ensures that both coarse grit and finer materials are effectively removed for further treatment or disposal. The plant is designed to handle any type of septic sludge , making it versatile for various types of treatment plants. It efficiently deals with the diverse characteristics of septic sludge and separates the unwanted materials, such as grit and screenings. The Ro3.3 offers reliable separation of all unwanted disturbing materials , including screenings, grit, and other debris. This ensures that the treated sludge is free from contaminants and suitable for further processing. The plant is designed to be dependable and reliable in operation, ensuring that it performs consistently with minimal maintenance. It is built to handle high solids loads and is engineered for long-term durability. The system includes a fine screen with an integrated screenings press to ensure that solids are effectively separated from the wastewater. The press helps reduce the volume of the screenings, making them easier to dispose of or further treat. By integrating all components into a single tank, the system is highly compact, effectively preventing odor issues. The entire treatment of the septic sludge is carried out within one unit, ensuring streamlined and efficient operation.[...]

[...]Continuous screening, dewatering and transport of coarse material in one operation Removal of coarse material from municipal sludge and industrial process water The STRAINPRESS® is a horizontal cylindrical coarse material separator which consists of inlet and screening zone, press zone, and a discharge section. It is used for liquid sludge screening or filtration of service or process water under pressure. The system does not need any wash water as backwashing of the screen is unnecessary. The perforation and design of the screw shaft are individually adjusted to optimally suit specific requirements. Design and Function A pump presses the unscreened liquid through the screening zone and delivers the screened liquid to further process steps. The coarse material which is retained on the cylindrical screen is stripped off by a coaxial screw and pushed through the press zone where the material is extensively compacted and dewatered. The screw operates only when the pressure sensors detect a differential pressure caused by screen surface blinding. The compacted material is pressed through a gap around a hydraulically operated pressure cone which closes part of the pipe end and builds up counterpressure. The counterpressure of the cone is automatically regulated inversely proportional to the screw motor load. Easy maintenance The complete casing, perforated plate and screw shaft of the HUBER Sludgecleaner STRAINPRESS® are made of corrosion-resistant 1.4307 (AISI 304L) stainless steel. The screw flights are reinforced with tungsten carbide for wear protection. The machine can be split in the middle and one half of the machine moved for maintenance. This allows for example to replace the perforated plate and install a screen insert with a new perforation size. Applications The STRAINPRESS® is used for liquid sludge screening or filtration of service or process water under pressure. Examples for coarse material separation from: Primary sludge Secondary sludge Mixed sludge Septic sludge Floating sludge Grease sludge Digested sludge Production waste water and industrial sludges Circulation and process water The benefits of the HUBER Sludgecleaner STRAINPRESS® Pressure-fed (inline) system for process water and any type of sludge including highly viscous and grease containing sludge Increases the operating reliability of downstream sludge treatment systems, such as thickening, disinfection, stabilisation, dewatering, drying, and reduces maintenance requirements For various applications perforations of 2 to 10 mm, different screw geometries and different material qualities are available Pressure-dependent control of the screw shaft combined with the pressure cone regulation system allows for unattended automatic operation even with varying flow rates Dewatering of separated coarse material to approx. 40% DR 2 sizes for throughput capacities up to 200 m³/h More than 1,000 successful installations worldwide Reliable cleaning of the screen without any wash water[...]

[...]A combination of screw conveyor and screenings press HUBER Screenings Compactor Ro7 units are used for the compaction, dewatering, and volume reduction of screenings and a large variety of waste materials from industrial processes. Optionally, they are also available with a screenings washing system. The sturdy machine is insensitive to coarse material and can be supplied with optional heating and insulation for outdoor installation. Design and Function The screenings to be treated enter the machine directly from the screen through an inlet hopper. A sturdy conveying and compacting screw transports the solids inside the closed rising pipe into the compaction and dewatering zone. The Ro 7 is fully enclosed thus eliminating odour nuisance. At the end of the compaction and dewatering zone the dewatered and compacted material is discharged into a container. The carbon-rich press liquor is discharged into the channel. Automatic cleaning via a solenoid valve is provided for the collection trough below the machine and the press zone chamber in the area of the compaction and dewatering zone. Optional automatic addition of wash water exposes the screenings to heavy turbulences thus achieving efficient separation of organic particles and washout of screenings. The washing intensity and washing cycle are adjustable. The benefits of the HUBER Screenings Compactor Ro7 Compaction of up to 35 % DS Reduced disposal costs Easy to remove press zone chamber and collection trough Completely made of stainless steel and acid treated in a pickling bath Carbon is returned to the wastewater Insensitive to coarse material Variable installation angle Optional bagging unit for fully enclosed, odour-free screenings disposal Optional screenings washing Optional heating and insulation for outdoor installation[...]

[...]Reduced disposal costs with high pressure for maximum washing and dewatering results Dewatering performance up to 60 % DR due to hydraulic high-pressure unit High washout factor Increase of the thermal value of screenings Especially wear resistant and solid materials in the conical high-pressure unit ensure reliable long-term operation of the plant. The ROTAMAT® Screenings Wash Press SL HP operates in a batch mode. Screenings either drop into the launder tank directly from a screen or conveyor, or they are flushed into the tank through a launder channel. After a batch of screenings has been fed, the tank is filled up with wash water and agitated for an adjustable period by means of an impeller. Design and Function High washout factor due to intensive washing The feacal matter is loosened and removed from the screenings by high turbulence and shear. The washing intensity is selectable and can be adjusted to suit the specific screenings quality. After the washing cycle has been finished, an automatic valve opens and the wash water drains through perforations in the trough. It returns, together with the faecal matter, to the wastewater flow. The washed screenings are further conveyed into the press zone where they are dewatered by means of a sturdy compacting screw. In the following automatically controlled second press zone the screenings are constantly compacted and dewatered under high pressure to a DS content of up to 60 %. The press water from the screenings compaction is collected under the high-pressure unit and discharged along with the wash water which is rich in carbon. Automatic cleaning with water of the press and wash water collecting tank under the machine and the complete highpressure unit is possible. The washed and compacted screenings are finally transported through the conical discharge pipe into a skip. 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. Free transport water is returned to the system through a perforated plate. 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 HUBER Screenings Wash Press WAP® SL HP High-intensity washing in launder tank Dewatering performance of up to 80 % DR Volume, weight and disposal cost reduction of up to 85 % Hydraulically controlled high-pressure zone Return of carbon-rich filtrate to the wastewater Screened wastewater or process water can be used as wash water Insensitive to coarse material Completely made of stainless steel (including the compacting screw) Compacting screw with reinforced flights for wear protection High economic efficiency due to reduced transport and disposal cost[...]

[...]Super Launder Wash Press for disposal cost reduction Volume, weight and disposal cost reduction of up to 85 % Compaction up to 50 % DR High washed screenings quality of (< 20 mg BOD5 / g DR) Reduction of disposal costs by up to 10 % compared to simple wash press systems The HUBER Screenings Wash Press WAP® SL operates in a batch mode. Screenings either drop into the wash press trough directly from a screen or conveyor, or they are flushed into the trough through a launder channel. After a batch of screenings has been fed, the trough is filled up with wash water and agitated for an adjustable period by means of an impeller. The fecal matter is loosened and removed from the screenings by high turbulence and shear. Design and Function After the washing cycle has been finished, an automatic valve opens and the wash water drains through perforations in the trough. The discharge of the washed screenings along with the compaction and dewatering of the screenings takes place in the following step in a single operation. The screw pushes the screenings through the pressure zone where they are compressed, dewatered and compacted before they are finally discharged through the discharge pipe into a dumpster or bagger. Feeding through a HUBER Launder Channel HLC The screenings drop from the screen or conveyor into the HUBER Launder Channel HLC. Screened wastewater or process water flushes the screenings through the launder channel into the trough of the HUBER Screenings Wash Press WAP® SL. The flush water also serves as wash water in the trough. Feeding directly from a screen or conveyor The screenings drop from the screen or conveyor into the trough. Screened wastewater or process water is directly introduced into the trough as wash water. 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. Free transport water is returned to the system through a perforated plate. 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 HUBER Screenings Wash Press WAP® SL Very clean screenings due to volume, weight and disposal cost reduction of up to 85% High-intensity washing in launder tank Washed screenings quality < 20 mg BOD5 / g DR Compaction up to 50 % DS Screenings processing capacity of up to 12 m3/h Screened wastewater or process water can be used as wash water Sturdy, durable design All structural parts, including the screw, are made of stainless steel to prevent corrosion Fast payback due to great transportation and disposal cost savings Reduction of disposal costs by up to 10 % compared to simple wash press systems.[...]

[...]Simple process for the removal of trace substances (fourth treatment stage) No shutdowns necessary for cleaning Reuse of the activated carbon Especially municipal sewage plant effluents are among the most critical paths of entry for micropollutants into surface waters. Many of these so-called trace substances are hazardous to the environment and health, are not readily biodegradable and can accumulate in the environment. With the HUBER Active Carbon Filter CONTIFLOW® GAK, HUBER has developed a versatile and reliable key component for the removal of trace substances (fourth treatment stage), which, cleverly combined with the HUBER Pile Cloth Media Filter Rotafilt® or the HUBER Sandfilter CONTIFLOW® , represents an ideally matched process solution. However, also in industrial wastewater treatment, the HUBER activated carbon filter CONTIFLOW® GAK finds a steadily growing field of application. Especially when it comes to removing dissolved organic COD compounds and pollutants to meet stricter discharge criteria, adsorptive treatment stages with the HUBER Active Carbon Filter CONTIFLOW® GAK are the technology of choice. Design and Function The HUBER Active Carbon Filter CONTIFLOW® GAK is an upflow active carbon adsorber with granulated activated carbon (GAC) as filling. It has a modular design and is available as a stainless steel tank or optionally as concrete construction. The HUBER Active Carbon Filter CONTIFLOW® GAK is designed for continuous operation. This means that no feed interruptions are necessary for cleaning the activated carbon. As the inflow slowly streams through the activated carbon bed from bottom to top, dissolved organic particles such as trace substances are adsorbed on the large inner surface of the activated carbon. The purified water flows off via a weir in the upper part of the filter. As the pressure loss increases, the activated carbon is gently conveyed from the bottom of the hopper into the scrubber located at the top, where it is cleaned from particulate residues. The particles are separated with a small partial flow, the so-called wash water. The activated carbon, which has been cleaned of solids but is still partially loaded with micropollutants, then falls back down onto the filter bed, creating an internal activated carbon circuit. As operation progresses, the loading on the internal surface of the carbon slowly increases. Applications Adsorption of trace substances in advanced wastewater treatment (fourth treatment stage) Biological secondary filtration for the removal of trace substances following ozonisation (BAC filtration) Removal of dissolved COD compounds in industrial wastewater treatment (process wastewater, recirculation water) The benefits of the HUBER Active Carbon Filter CONTIFLOW® GAK Easy to retrofit on existing sewage treatment plants due to modular design No complex carbon dosing technology as with PAC processes No dirt and dust loads as with PAC processes No precautions for explosion protection as with PAC processes No secondary filtration required as with PAC processes No shutdowns necessary for cleaning the activated carbon bed Activated carbon can be regenerated and largely reused[...]

[...]Retention of filterable solids from the secondary clarifier effluent Reduction of phosphorus by upstream precipitation Preliminary filtration in drinking water recovery from surface waters and in UV disinfection applications High hydraulic loads, insufficient tank depth and poor settling behaviour of the activated sludge are the most common causes for the poor performance of secondary clarifiers. Frequently, secondary clarifiers are even unable to reliably ensure the solids retention required. Overflow of flocks increases COD, BOD and phosphorus loads in the effluent and receiving watercourse with the result of higher wastewater fees. A subsequently installed filtration system is a quick, efficient solution in order to achieve separation of suspended material, such as sludge flocks. Combined with preceding precipitation and flocculation a micro screen provides an easy-to-implement means for the reduction of phosphorus in effluents to very low concentrations. This prevents eutrophication of waters and excessive growth of algae and water plants. Design and Function Our HUBER Disc Filter RoDisc® is a filtration plant and consists of up to 35 vertical discs installed on a horizontal shaft. Up to 65% of the disc surface is submerged in the filtrate during operation. Each filter disc consists of 12 individual plastic segments equipped with two filter plates each. The filter plates are covered with filter mesh on both sides. A thermal process is applied to fix the mesh. Each segment can be exchanged individually in case the mesh should be damaged. The finest available mesh size is as small as 10 μm. Due to its small space requirement and modular design the HUBER Disc Filter RoDisc® can be tailored to suit any specific site requirements. The HUBER Disc Filter RoDisc® is a gravity-flow filtration system. The wastewater to be treated flows into the horizontal shaft and from there through openings into the filter discs which the water passes from inside to outside. The filter discs remain in rest position at first during the filtration process. The solids are retained on the inner disc surfaces, which leads to gradual blinding of the mesh, resulting in an increasing pressure differential. An overflow weir ensures that the water level in the tank remains virtually constant. The upstream water level rises as the blinding process progresses. When the predefined maximum pressure differential has been reached, the solids are removed automatically from the filter surfaces. The filter material is cleaned by spray nozzle bars. The solids are removed by the slow rotation of the filter discs combined with the high-pressure water jets which wash the filtrate through the mesh from inside to outside without the need to use fresh water as filtrate is used for backwashing. The spray water and the solids contained are collected in a trough and discharged axially from the machine. The filtration process runs on continuously whilst the filter discs are being cleaned. The Applications of the HUBER Disc Filter RoDisc® Filtration of biologically treated wastewater The HUBER Disc Filter RoDisc® is frequently utilised for the separation of fine suspended material from biologically treated wastewater within municipal and industrial applications, especially if secondary clarifiers work insufficiently because they are too small or the settling behaviour of the activated sludge is poor for example. Our HUBER Disc Filter RoDisc® reliably achieves effluent values which are significantly better than the required limit values for filterable solids. Furthermore, it achieves a further significant reduction of phosphorus concentrations. Filtration to protect or increase the efficiency of downstream treatment systems A virtually solids-free flow is a prerequisite for effective and efficient as well as trouble and maintenance free operation of some subsequent treatment steps, such as UV disinfection or membrane filtration. Our micro screens significantly reduce the concentration of suspended material. Investment and operation costs are more than compensated because micro screening saves money for downstream systems. Treatment of water and wastewater in industries Due to new legislation concerning direct or indirect wastewater discharge, advanced wastewater treatment at source is required. Removal of solids is also required for wastewater recycling because service and process water must be virtually solids-free. Special applications: Wastewater within paper and pulp industry Wastewater within plastic processing industries Treatment of service and process water, closing water loops (e.g. in food and chemical industry) Removal of microplastics The Benefits of the HUBER Disc Filter RoDisc® High hydraulic throughput capacity on a small footprint Gravity system with low headloss, no lifting of wastewater required. Significant reduction of filterable solids, COD, BOD, phosphorus. Effluent standards are reliably met. Reduced wastewater discharge charges. Form-locked and chemical-resistant thermal fixation of the mesh. No external water supply required as filtrate is used for cleaning. For installation within a stainless steel tank or in customer‘s concrete tank. Continuous operation even during backwashing. Simple individual filter element replacement without the need for lifting equipment.[...]

[...]Removal of fibres and hair Service water and wash water treatment Defined separation size COD and BOD removal in river or sea outfall applications Protection of membrane filtration plants Separation of hair, fibres and fine suspended material from municipal and industrial wastewaters is in many applications essential for trouble-free and low-maintenance operation of subsequent treatment stages. Fine mesh screens are required to remove such materials. Wastewater treatment at source is necessary for many industrial installations to meet the requirements for wastewater discharge into sewer systems. Since waste-water fees depend on the freight discharged it is eco-nomically beneficial to minimise the freight by using a fine mesh screen for wastewater treatment at source. Design and Function The HUBER Drum Screen RoMesh® consists of a horizontal screen basket equipped with a fine square mesh (0.2 to 1 mm mesh size) or a perforated plate (2 to 3 mm perforation). Due to the two-dimensional effect of the mesh or perforated plate the screen removes very fine particulate material. The wastewater flows from inside to outside the basket through the screen surface. Filtrate is discharged vertically from the bottom of the drum and the screenings are transported horizontally by the rotation of the screen Filtrate is discharged vertically from the bottom of the drum and the screenings are transported horizontally by the rotation of the screen towards the discharge point. The discharged screenings are usually dewatered in a down-stream screenings press. A spray bar with alternately operating spray nozzles cleans the screen surface while the drum rotates. The screened wastewater can be reused as wash water if a sufficiently fine mesh is used. Applications of the HUBER Drum Screen RoMesh® The HUBER Drum Screen RoMesh® Screen is used to remove ultra-fine solids from municipal and industrial wastewater. The machine is completely made of stainless steel and pickled in an acid bath for optimal corrosion protection and minimised maintenance requirements. The compact units are supplied in a container. Separation of hair and fibers Separation of hair and fibers is crucial to protect downstream treatment stages. In technologies like Membrane Bioreactors (MBRs), preliminary separation of fine material is essential to ensure smooth and low-maintenance operation. Specifically, the removal of fibers and hair is critical before hollow fiber membrane plants as fibers may lead to tressing or blocking of the membrane. 1.0 mm square mesh to protect hollow fiber membranes 2.0 or 3.0 mm perforated plate to protect plate membranes feed pump from sump or channel COD and BOD reduction prior to river or sea outfalls Raw wastewater is often only treated with a mechanical coarse screen before being discharged directly into rivers or the sea. Ultra-fine screens are highly effective for outfall applications in rivers or seas, as they significantly reduce the COD and BOD loads in the discharge. This process is both fast and cost-effective. Due to their fine mesh, these screens not only capture waste but also effectively separate fine particulate material of organic origin, which has a high COD and BOD content. The screen is capable of reducing BOD by 20% and filterable solids (AFS) by 50%, ensuring compliance with the stringent discharge standards Even better performance can be achieved with prior precipitation and flocculation. Recovery of wash water and service water free of hair and fibers Separation of hair and fibers is crucial for reusing wastewater as wash water. The HUBER Drum Screen RoMesh®, with its two-dimensional square mesh, effectively retains nearly all hair and fibers, ensuring the treated water is suitable for reuse. Treatment of industrial process water Mechanical wastewater pre-treatment is essential to meet discharge requirements for sewer systems. Since wastewater fees are often based on the load (freight) discharged, it is economically advantageous to minimize this load at the source. The HUBER Drum Screen RoMesh®, featuring a square mesh for high capture rates, is specifically designed for this purpose, efficiently removing solids and reducing the load on downstream systems. A selection of the variety of applications in industries: Paper and pulp industry: separation of fine fibers Meat processing industry: separation of scraps Agricultural industry: separation of fruit and peel residues Breweries: mechanical preliminary treatment of all process waters Laundries: separation of fibers from wash waters The benefits of the HUBER Drum Screen RoMesh® Excellent separation efficiency due to the defined separation size provided by the square mesh Significant reduction of COD and BOD in river or sea outfall applications Protection of downstream treatment stages, e.g. MBR plants, through removal of hair and fibers High-pressure washing at 120 bar eliminates blocking of the square mesh Small footprint requirements due to the enclosed, compact design Reduced wastewater discharge fees through freight reduction[...]

[...]For high separation efficiencies For any flow rate Easy and reliable screenings transport 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 variable installation angle ensures optimal adjustment to individual hydraulic conditions, such as limited upstream levels due to preceding pumping stations operating reliability due to tailor-made layout 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 new linkage type we are able to master the occurring bending moments on the lamellae, especially with high water levels. The screenings carpet is a structure, the pores of which retain much smaller particles than the actual slot width would allow. This additional filtration effect significantly improves separation efficiency. 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® SSF Functional principle: Lifting of screenings at bottom level Gentle and complete screenings transport due to the counter-current principle Optimally adjustable to individual hydraulic conditions due to the flexible 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 moveable lamellae (no spray water, no brushes) Operational stability: Reduced susceptibility to grit, gravel and stones due to the bottom step washing system Pivoted screen: Without the need to remove the subsequent wash press or transport unit Protection against corrosion: Completely manufactured from stainless steel and acid-treated in a pickling bath Experience: Unrivalled for more than 30 years[...]

[...]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)[...]