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[...]Berching, Germany On the basis of the worldwide known and well-proven system of HUBER ROTAMAT® fine screens with wedge wire screen basket we developed the ultra-fine ROTAMAT® Perforated Plate Screen RPPS with perforated plate. The two-dimensional screen (perforated plate) ensures the reliable removal of hairs and fibres and avoids that: fibres and hairs hinder the stable operation of membrane plants and increase maintenance requirements, these materials tend to entangle on the membranes and lead to reduced membrane plant efficiency these products form tresses in the wastewater treatment plant, this would impair oxygen supply to the aeration system with the result of problems occurring in the sludge treatment line These screens with a two-dimensional perforated plate rely on the unique system of HUBER ROTAMAT® machines which combines screening, washing, transport, compaction and dewatering in a single unit. Additional advantages, such as shear-force resistant and wear resistant screen surface cleaning and a high frequency of screen surface cleaning per minute, guarantee maximum efficiency and operating reliability. Perforated plate for two-dimensional screenings is primarily used for screens with apertures > 1 mm. For finer screening < 1 mm we use the newly developed ROTAMAT® Membrane Screen RoMem with filter mesh. HUBER ROTAMAT® Perforated Plate Screen RPPS units are equipped with 1 to 5 mm perforated plate. The selection of the mesh size or perforation depends on to what extent hairs and fibres must be removed to meet the specific requirements of the downstream clarification systems. Two-dimensional perforated plate screens achieve a high removal of hairs and fibres, i.e. two to four times the amount of solids are removed than one-dimensional screens are able to separate. The significantly increased separation efficiency is accompanied by a high level of screen surface blinding and requires larger dimensioning of the fine screens compared to other commonly known wedge wire screens. Conventionally, a screen basket with bigger external dimensions is used to achieve larger dimensioning with the result of significantly increased investment costs and even building costs as a bigger channel is required. We have solved this problem with our ROTAMAT® Perforated Plate Screen RPPS-Star: The perforated plate of the screen basket is folded in axial direction like an accordion. The zig-zag folds form the star-shaped screen basket (RPPS-Star). This increases the screen basket surface by about 30 % with still the same nominal diameter. The filter drum of the ROTAMAT® Perforated Plate Screen RPPS-Star is cleaned by a water jet spraying against wastewater flow direction. This ensures that fibres and screenings are reliable washed from the drum surface and removed by the centrally arranged conveying screw. With this innovation we have made a ’traditional’ machine fit for the future. We are well prepared for higher future requirements related to separation efficiency and hydraulic throughput. The extensive experience gathered from real size installations is reflected in the continuous development and optimisation of our fine screens. Compared to one-dimensional wedge wire screens, the two-dimensional perforated plate screen achieves a significantly higher separation efficiency. Due to its star-shaped screen drum the ROTAMAT® Perforated Plate Screen RPPS-Star has a by about 30 % larger screening surface, with the same small nominal diameter and with the result of a significantly increased hydraulic throughput capacity.[...]

[...]Tula Valley of Hidalgo, Mexico The largest sewage treatment plant under construction in the world lies in the Mexican Tula Valley of Hidalgo. WWTP Atotonilco is situated about 60 km from the Mexican capital Mexico City and will treat 60 % of the wastewater generated by the city’s 20 mi HUBER SE will supply the complete equipment for the mechanical pre-treatment stage and in this way contribute significantly to the future improvement of the country’s water shortage problems. In the future, the wastewater in the inlet area will be pre-treated by ten HUBER RakeMax® Multi-Rake Bar Screens for the removal of coarse material, 20 STEP SCREEN® Vertical SSV for the removal of fine material combined with a launder channel system with integrated screenings treatment system. Another eight COANDA Grit Washer RoSF 4 units will be used for the removal and treatment of grit, and six STEP SCREEN® Flexible SSF units will be installed to screen the return sludge. WWTP Atotonilco is designed for the maximum flow of up to 50 m³ per second and will treat the wastewater of more than 12 million people. Right from the beginning, great importance was attached to the sustainability aspect in this project, which is co-financed by the Mexican government. The generated biogas will be used for energy recovery, the treated wastewater for the irrigation of 80,000 hectares of land. In the state of Hidalgo, most of the food for the inhabitants of Mexico City is grown. Up to now, untreated wastewater has been used to irrigate this agricultural land and increasingly caused hygiene and health problems. The overall project, a role model for the whole world, has a total value of € 500 million and will provide 2,000 new jobs in Mexico. By 2020, the Mexican government wants to guarantee a 100 % treatment of the complete wastewater generated in Mexico City and therefore has another five projects in the planning stage. Already in the tender phase the consortium of operators, Aguas Tratadas del Valle de Mexico (ATVM), attached great importance to the functionality of the complete solution, its economic efficiency as regards operating costs, and on the investment costs of the proposals submitted by the suppliers. In cooperation with our subsidiary in Chile and our representation Aguas Latinas in Mexico, we have developed a solution that stood out from those of our competitors as regards operating costs, involvement of specific local requirements, investment costs and product quality. Plant operation by the consortium has been fixed to 22 years. The first stage is planned to be completed and put into operation in the second quarter of 2012. Facts and figures Machines: - 10 x HUBER Multi-Rake Bar Screen RakeMax® - 20 x STEP SCREEN® Vertical SSV - 4 x Wash Press WAP/L size 12 with launder channel - 2 x Wash Press WAP/L size 6 with launder channel - 8 x COANDA Grit Washer RoSF 4 - 6 x STEP SCREEN® Flexible SSF Max. flow rate: 50 m³/sec Irrigation of 80,000 hectares of land[...]

[...]Bickenbach and Uhldingen, Germany How can a fourth treatment stage be optimally integrated or retrofitted, taking into account all individual requirements and boundary conditions? This is a question that many municipalities, operators and wastewater associations will soon be asking themselves. In Bickenbach (Hesse) and Uhldingen (Baden-Württemberg), they are already one step ahead. Those responsible there have already taken action and assumed an important pioneering role with the start of large-scale implementation. Bickenbach STP Hesse’s first quaternary treatment stage In Bickenbach, the official groundbreaking ceremony for what will probably be Hesse's first fourth treatment stage took place in spring 2022. The future plant will consist of an ozonation unit with a downstream four-line adsorption stage and an upstream two-line cloth filtration system. Sixteen HUBER Activated Carbon Filter CONTIFLOW® GAK and two HUBER Pile Cloth Media Filter RotaFilt® units will be used for primary treatment of the wastewater. The ozone reactor will be equipped with the proven HUBER Pressure-Tight Door TT7 and two high-quality HUBER Manhole Covers SD5. Commissioning of the plant is scheduled for spring 2024. Thus, the Bickenbach WWTP will make an important contribution to the protection of the Hessian Marsh, which is the largest groundwater reservoir in Germany and provides drinking water for about two million people in the Rhine-Main area. Uhldingen-Mühlhofen WWTP: 24 HUBER Active Carbon Filter CONTIFLOW® GAK The combination of ozonation and activated carbon filtration is also applied at the Uhldingen-Mühlhofen wastewater treatment plant – on a technical scale as large as never before installed in Baden-Württemberg. HUBER supplies the activated carbon stage with a total of 24 HUBER Activated Carbon Filter CONTIFLOW® GAK for biological post-filtration and adsorption. The installation of the activated carbon filters was successfully completed this summer. Commissioning of the 7.4 million euro project is planned for 2023. Then, persistent and hazardous trace substances such as pharmaceutical residues, hormones and flame retardants will be reliably separated before they enter Lake Überlingen. This part of Lake Constance supplies around four million people in large parts of Baden-Württemberg with about 135 million m³ of drinking water annually.[...]

[...]Bielefeld, Germany Stadtwerke Bielefeld GmbH are a modern multi-utility company. With the city of Bielefeld (50.1%) and Bremer swb AG (49.9%) as partners, their priority is to meet customer and market requirements. With about 1,280 employees and a turnover of 700 million euros a year they are one of the big German municipal suppliers of energy, heat and drinking water. Stadtwerke Bielefeld supply the drinking water for about 320,000 residents and 1,500 industrial companies in the city of Bielefeld itself, plus for about 40,000 people living in the greater Bielefeld area. In 2010, drinking water consumption was about 17.3 million m³. The total length of the distribution network is 1,503 km. In the field of water production the activities of Stadtwerke Bielefeld focus on the operation, new construction, reconstruction and deconstruction of its 16 water production plants and 157 wells. Other plants within their responsibility: 4 water treatment plants 10 pumping stations 18 pressure change plants 24 water reservoirs 17 water transfer and takeover stations including pipelines Stadtwerke Bielefeld continuously carry out refurbishments and reconstruction work and build new facilities. They also upgrade pipelines and conveyor systems to state-of-the-art level and take measures to improve the energy efficiency of their facilities. Cast iron and steel pipes are replaced with stainless steel pipes and various HUBER products installed: Safety doors Manhole covers Air filter units Safety climbing ladders Fitting and enlarging pieces and fittings Products made of 1.4571 or 1.4404 stainless steel are used for components in contact with water. For other applications they use 1.4301 or 14307 stainless steel products. Stadtwerke Bielefeld attach great importance to high hygiene standards and therefore plan to install HUBER air filter plants in all their water reservoirs. The size of air filter plants to be used depends on reservoir volume and reservoir management. We would like to take this opportunity to thank Stadtwerke Bielefeld for their confidence in our products. Special thanks go to Bernd Niehaus, Peter Hildebrand and Harald Necke for their excellent cooperation right from the beginning, from the planning phase to project execution.[...]

[...]Bayonne, France The water board of the city of Bayonne supplies the drinking water for one third of the population (15,000 persons) from the valleys of Petchonea, Arquetce, Ipharager and Lapeyeren. In 2011, the Bayonne water association decided to refurbish their well shafts for drinking water supply. The refurbishment was necessary as the old bitumen coated manhole covers were leaking. The water board put the refurbishment of about 100 shafts out to tender. The tender specifications were for manhole covers including entrance ladders and installations. The cheapest offer was submitted by the construction company Miremont SEE, a specialist in refurbishing concrete shafts. The requirements concerning the manhole covers were very high. The covers had to be completely weatherproof and with safety locks and emergency escape function. The air vents are equipped with insect screens. Some covers are used for highly sensitive shafts and must therefore be attack-proof. The customer relied on our excellent quality, reliability, and experience, and the cost effectiveness of HUBER manhole covers. The order was for in total 136 manhole covers, which we delivered not all at the same time but in the course of several months. Security of supply must be guaranteed at all times. Installation was a real logistic challenge because the manholes had to be installed at difficult to access places. But due to our perfect preparation and our easy-to-install products we had no problem to promise and meet a fixed delivery date. Several employees of Miremont SEE worked on site for more than five months. HUBER manhole covers are an investment into the future. HUBER stainless steel products are acid-treated in a pickling bath and passivated. They are maintenance-free, weatherproof, attack-proof, offer state-of-the-art design, and we have made them more easier to operate: They are very easy to open due to integrated gas pressure springs. Their entrances now meet the applicable accident prevention regulations and reliably protect potable water. FACTS AND FIGURES: Order volume: 136 manhole covers with safety access ladders Requirements: attack-proof easy to operate emergency exit rain-proof Design: state-of-the-art[...]

[...]Birmingham, England A HUBER Technology Industrial Wastewater Case Study HUBER Technology recently completed a project for the largest confectionery manufacturer in the UK at their site at Marlbrook between Leominster and Hereford. The project for Mondelez which own confectionery brand Cadbury was delivered following good early engagement to allow a successful project to be delivered. Project Profile This project was part of the upgrade to the sites effluent treatment plant to include for a provision of sludge dewatering capability on site. It involved removal of an existing redundant DAF plant and the installation in its place of a HUBER Q-PRESS® sludge dewatering system including the provision of poly dosing equipment and associated control panels into the constraints of the existing building. HUBER Technology Supplied 1 x HUBER Screw Press Q-PRESS ® 440.2 Sludge Dewaterer 1 x Polymer dosing plant 1 x HUBER Control Panel 1 x HUBER Screw Conveyor Ro8 for sludge discharge Objective The sludge generated on site from the effluent treatment plant was originally tankered away and treated at another location. The installation of the HUBER Q-PRESS® sludge dewaterer enabled the sludge to be treated on site with just the sludge cake requiring disposal thus reducing operating costs. Solution Based on the parameters of 83 m³/week at 3% dry solids being generated at the site the Q-PRESS® 440.2 unit was selected. This allows the unit to operate in normal situations at around 8 hours per day 5 days per week. The capacity of the unit is approximately 4m³/hr if required. The sludge dewaterer was supplied complete with a HUBER designed control panel and a polymer dosing plant. Sludge cake was discharged directly into a Ro8 screw conveyor and into a skip for disposal off site. “This project was completed and delivered on time and to budget, this was achieved by early engagement with the client to ensure the right equipment was selected to deal with the sludge and was delivered successfully into the constraints of the existing building.” Richard Willis - Area Manager Product Profile HUBER Screw Press Q-PRESS®: The new generation of our well proved sludge dewatering press which is now even more efficient with an increased reliability in operation with optimised operating costs. With over 20 units operating in the UK and over 1,650 worldwide.[...]

[...]Leibnitz, Austria Leibnitzerfeld Wasserversorgung GmbH has set itself the target to ensure the supraregional water supply in South and Southeast Styria. With an annual water production of about 3 million m³ and daily peaks of up to 15,000 m³ they supply the drinking water for 39 municipalities and three joint communities with a total of of 100,000 PE. In total, they operate 11 well system, 42 elevated reservoirs (of which 20 of their own with a capacity of 10,000 m³), 60 pressure increasing plants, and a network of 170 km transport lines and 139 km supply lines. Furthermore, they network with the water boards Graz, Leibnitzerfeld South and Grenzland Southeast. They plan to refurbish some of the elevated reservoirs, wells and pressure increasing plants in the near future. HUBER SE has been able to convince the responsible persons of Leibbnitzerfeld Wasserversorgung GmbH of the high quality and functionality of their safety doors and received an order for the supply and installation of eight RC3 doors. Already in the early project phase the HUBER sales representative in charge had taken care of the field measurement of the individual structures under the presence of a water master of Leibnitzerfeld Wasserversorgung GmbH. This ensures that the right measures can be taken for the problem-free installation of the HUBER RC3 doors. In addition, we give the customer a questionnaire where he can indicate his special requests and the special features of each door. We would like to use this opportunity to thank the persons in charge at Leibnitzerfeld Wasserversorgung GmbH for their confidence in our products.[...]

[...]Innsbruck, Austria Innsbrucker Kommunalbetriebe AG (IKB) invest into a HUBER Belt Dryer BT 16. With its strategy “ from sewage works to power plant ”, IKB’s wastewater treatment plant Innsbruck sustainably produces energy and intelligently integrates it into its existing system. The aim is to further increase the efficiency of the complete sewage treatment works and make it one of the most modern plants in Europe. With its about 130,000 inhabitants, Innsbruck, the capital of Tyrol, is the fifth largest city of Austria and produces 50,000 m³ wastewater a day (peak: 145,000 m³) together with its 14 neighbouring municipalities. This wastewater is treated on the modern sewage treatment works. Two HUBER Belt Thickener DrainBelt 2.0 units produce approximately 320 m³ thin sludge with 6% to 7% DR per day. Approximately 70 m³ biowaste a day are mixed into the generated thin sludge. The biogas yield of the digesters on the STW increases through co-fermentation. The digesters produce on average approximately 9,000 m³ gas a day. Most part of the gas is used to produce electricity in two block heat and power plants. The exhaust heat generated by motor cooling with a supply temperature of 90 °C is utilised in the medium-temperature range operation of the belt dryer. The rest of the biogas is used in a 1,800 kW hot water boiler for heat production with a temperature level of 140 °C. HUBER implemented in this project a tailor-made two-temperature zone dryer that is operated with both medium-temperature energy from the block heat and power plants and high-temperature energy from the hot water boiler. Modified dryer design for limited available space HUBER modified its belt dryer so that it could be integrated into the existing former sludge dewatering structure: A height reduction of the standard size dryer ensured that the headroom requirements for passage above the dryer were met. The given dimensions of the structure also limited the dryer length. The thermal energy inside the belt dryer therefore had to be distributed to ensure a water evaporation of 2,000 kg/h despite the reduced dryer length. Customised heat concept HUBER planned and designed for IKB a dryer that is tailored to their needs and requirements on this WWTP. In addition to the 330 kW exhaust heat from their existing block heat and power plants, the biogas is efficiently utilised for the production of thermal energy in a high-temperature boiler. Reliable operation of the drying plant even during maintenance and inspection of the block heat and power plants is guaranteed as the dryer is equipped with an additional heat exchanger that makes it possible to transfer the high temperature heat to the medium temperature range operation. In the event of failures or when maintenance and inspection work is carried out on the block heat and power plants, the dryer changes fully automatically to pure high-temperature operation. This further increases the dryer’s operating hours and ensures that the sludge volume to be dried is processed reliably. The positive energy balance of this IKB’s sewage treatment works is further improved with the operation of the HUBER Belt Dryer BT 16. An additional finned heat exchanger upstream of the condensation stage extracts more than 400 kW thermal power on a temperature level of 70 °C and feeds it to the on-site heating system. The excess heat is fed to a district heating grid to which the indoor swimming pool of the former Olympic Village and a nearby lake restaurant are connected. A cleaning system developed by HUBER is used to periodically clean the heat exchanger fully automatically and during active operation to permanently guarantee the extracted thermal energy. Intelligent HUBER throughput control The feed pump of the belt dryer is fed by six HUBER Screw Press units with a constant inlet DR of 25%. The screw presses, sludge pump and belt dryer form one process unit on this STW. The control systems of these components communicate via direct connection. The intelligent HUBER throughput control system is able to detect even minor variations in the outlet DR of the screw presses already before dryer feeding, for example seasonal variations due to the biowaste. The throughput control system balances even differences as small as ± 0.5% DR by DR-dependent reduction or increase of the dryer throughput. This ensures a constant water evaporation and thus constantly maximum plant efficiency. Of course, the dryer can optionally be operated with a lower throughput according to the volume of sludge generated in the sewage treatment process. The dryer fully automatically reacts flexibly and efficiently to varying requirements. Maximum energy efficiency The HUBER Belt Dryer BT 16 at Innsbruck positively contributes to achieving climate protection goals. Both thermal and electrical energy supply are achieved by means of regenerative energy in the form of biogas from co-fermentation. Additionally, approximately 400 t CO 2 a year can be saved due to 450 fewer truck transports that were necessary before. Convincing is the remarkably low energy consumption of the Belt Dryer BT 16 with a maximum thermal energy consumption of 0.8 kWh per kg water evaporation and an electrical energy consumption of below 0.0375 kWh per kg water evaporation. These values set new standards in the field of belt dryers. Time management and project schedule We were faced with a tight schedule at any time during this project. The contract was signed at the end of 2016, the installation work on site started already in mid May 2017, and commissioning took place at the beginning of August. The dryer with its many innovations was planned, built, installed and commissioned within eight months (from the date of order placement). After a successful test operation phase with a convincing performance test, the plant was handed over to IKB in December 2017. Facts and figures: Site: Innsbruck, Austria Size: HUBER Belt Dryer BT 16 with two temperature zones Dryer length: 19 m Water evaporation: 2000 kg/h Throughput: 21,176 t/a (2,647 kg/h) Operating time: 8,000 h/a Drying efficiency: from 22% DR to 90% DR Heat sources: medium temperature source: biogas block heat and power plant with 90 °C high temperature source: biogas block heat and power plant with 140 °C HUBER Sewage Sludge Drying with HUBER Belt Dryer BT[...]

[...]Freystadt, Germany HUBER sludge treatment solution on STP Freystadt – a concept that pays off for the operators The newly installed process chain replaces the previous system with contract dewatering and its associated problems. STP Freystadt is designed for approximately 8,000 PE. The sludge on site was previously dewatered only once a year. After the implementation of the new HUBER systems, comprising a HUBER Screw Press Q-PRESS® and a HUBER Sludge Turner SOLSTICE®, the plant operators can look forward to a smoother and easier plant operation, and the disposal costs incurred by the municipality of Freystadt will now decrease significantly. Sludge is pumped from the storage ponds and cold digesters to the dewatering building where a HUBER Screw Press Q-PRESS® 280 is installed that dewaters the sludge to approx. 24% DR. Two HUBER Screw Conveyor Ro8 T units transport the dewatered sludge into a greenhouse where the solar dryer HUBER Sludge Turner SOLSTICE® is waiting for the sludge to be dried. The new HUBER Sludge Turner SOLSTICE® 9 underwent an extensive redesign with the focus on easy maintenance, reduced wear and long lasting product life. Furthermore, all motors of the HUBER machines and the ventilators/aerators have been replaced by motors of efficiency class IE4. A new safety system has been developed in cooperation with the Technical Inspection Authority (TÜV). The installation of this system has additionally improved the aspect of work safety for the plant operators. The many beneficial details can be explained and presented best directly on site. All plant components are matched to each other. HUBER prepared a functional description on the basis of the fixed points given by the tender specification which was then discussed on site with the plant operators and the engineering office Miller from Nuremberg and adjusted accordingly. Especially the electrical control system was individually adjusted to the plant operators’ requirements.[...]

[...]Bad Orb, Hessen, Germany The further developed HUBER Screw Press Q-PRESS® was presented for the first time at IFAT 2016. The first units were installed soon and have meanwhile been in operation for more than a year. Now, it is time to review the operational experience gained on site against development targets. In April 2016, a new sludge dewatering system for STP Bad Orb was put out to tender to replace a chamber filter press. Extensive on-site testing was done before in 2015. During the tests, the screw presses turned out to be the most suitable dewatering solution. HUBER offered the newly developed HUBER Screw Press® 620.2 and could win the tender which included a screw press, the electrical control sytem, conveying technology, coagulant agent plant for simultaneous conditioning of liquid and powdery polymer, and a solution for bridging the time of installation. The screw press was installed and successfully put into operation in October 2016. The operating staff on site had already time to get familiar with the operation of the machine during the installation phase when a mobile Q-PRESS® 440 unit was operated on site as a transitional solution. Performance data of the HUBER Screw Press Q-PRESS® 620.2 Throughput: 5 – 7 m³/h, 100 – 210 kgDR/h Polymer demand: 15 kg/t; 1:1 mix of powder/liquid Dewatering results: 24 – 27 % DR Separation degree: > 97 % Screw rotation speed: 0.3 - 0.4 rpm Power consumption: 0.5 – 0.8 kW The Q-PRESS® on STP Bad Orb has already dewatered approximately 7000 m³ sludge since when it was put into service. We would like to thank the operators for their cooperation and excellent support when we were testing new drive technologies on the screw press. In addition to the installation in Bad Orb, another eight HUBER Screw Press Q-PRESS® 620.2 units have been installed successfully. HUBER Screw Press Q-PRESS® – features of the new model Easier maintenance and reduced space demand Axially dividable filter baskets are optionally available, they facilitate maintenance work significantly. Massive components, such as the screw shaft and some filter elements, can now remain in the machine during inspections. Much less space and time is therefore required for maintenance. Even if non-dividable filter baskets are used, space requirements for maintenance on the installation place are now reduced to the minimum that is necessary for machine operation and inspection. Efficient screen surface cleaning inside and outside for improved screening performance The outer surface of the cylindrical filter baskets was previously cleaned by rotating the filter baskets along a stationary nozzle bar while the dewatering process was interrupted. The new screw press offers continuous dewatering without interruptions through a rotating washing system that rotates around the filter baskets for periodic cleaning. Dewatering degree and machine throughput are no longer influenced by interruptions or starts/stops of the washing systems. In contrast to many competitive machines the rotating washing system allows for independent cleaning of the filter surfaces of the inlet and press zone. In addition, the upper and lower filter halves can be cleaned separately so that only the contaminated filter surface sections are cleaned. Filter surface sections which have been cleaned cannot be contaminated again by wash water that runs down.This system significantly reduces the water demand for filter cleaning and additionally minimizes rewetting of the sludge cake through washing. Reliable cleaning of the inner screen basket surfaces is just as important as cleaning of the outer surfaces. The inner surfaces are typically cleaned by a scraper that is mounted on the screw flights and wipes clear the inner filter surface as the screw shaft rotates. The efficiency of this scraping & wiping operation has direct influence on filter resistance and the water discharge velocity of the screw press. Both have an influence on dewatering degree, throughput, filtrate quality, polymer demand, and thus on the operating costs for dewatering. After extensive development and test series HUBER screw presses are now equipped with an innovative, especially designed patented scraper material which cleans the inner filter surface much better and more reliably than customary brushes and a lip seal system. Larger screening surface for increased hydraulic throughputs What is new is that the open filter surfaces in the filter baskets have been increased by up to 100%. The individual screen sizes are therefore able to process significantly higher hydraulic loads without placing higher loads on the filter surfaces and thus the filtrate, and without increasing polymer demand. More efficient drives for improved performance with reduced energy costs New drives exceed current energy efficiency standards. They save not only electricity costs, they also offer plant operators the possibility to operate their sludge dewatering unit much more flexibly due to significantly wider motor speed ranges. Inclined installation for improved dewatering efficiency For good reasons, the basic appearance of the press, the inclined installation, remains as it has always been. The inclined design ensures that screenings removal units can in most cases be connected without the need to place it on an additional elevation. Furthermore, the inclination of the filtrate chambers prevents sedimentation and eliminates the need for manual cleaning work. The decisive advantage of the inclined installation is improved dewatering efficiency. The separated filtrate flows off from the screen basket by gravity, against the flow direction of the press sludge. Rewetting of hydrophilic sludges through filtrate is thus reduced and the dewatering degree improved. Moreover, inclined installation facilitates especially the start-up procedure of the screw press.[...]