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[...]Germany In times of global uncertainty, rising raw material prices and growing environmental requirements, the recycling of plastics is becoming increasingly important. However, producing new materials from fossil fuels is often still cheaper than recycling. This makes the quality of the recycled material and the cost-effectiveness of the entire plastic recycling process all the more crucial. This is precisely where HUBER comes in. Our technologies for treating process water and sludge provide the basis for sustainable and economical recycling processes. Advantages of HUBER technology based on customer feedback HUBER offers a comprehensive range of machines and plants for the treatment of process water and sludge, which is a major advantage over many competitors. This is a significant benefit for planners, consultants, and manufacturers of plastics machinery. They have a single point of contact, a specialist, who can cover all their water treatment requirements. The wide range of variants in the HUBER portfolio also enables high throughput rates with just one machine (e.g. 350 m³/h per flotation unit). Highest quality and materials HUBER relies on the highest quality stainless steel for its products and solutions, which are fully acid-treated in a pickling bath. This ensures durability and process reliability HUBER Global Service Another key advantage is that HUBER offers global service through its subsidiaries, representative offices and partners, supported by four international production sites. This ensures rapid support even outside Europe. Operating experience in plastics recycling As one of many examples, a leading global manufacturer of high-performance plastic films relies on HUBER technology at several of its sites, including locations in Sweden and France. They recycle agricultural and construction films are recycled there. HUBER machines used HUBER Complete Plant ROTAMAT ® Ro5 Reliably removes contaminants such as plastic particles and grit. Simultaneous compaction significantly reduces disposal costs. HUBER Dissolved Air Flotation Plant HDF with DIGIT-DOSE chemical dosing The clear water can be reused in the recycling process and as process water for the HUBER machinery. The intelligent DIGIT-DOSE system simultaneously reduces both precipitant consumption and sludge volume – a clear advantage over competing products. Throughput: 150 m³/h – one HUBER unit can replace up to three flotation units from other suppliers. HUBER Screw Press Q-PRESS ® Fully automatic, continuous dewatering with minimal energy consumption (<1 rpm thanks to IE4 drive). In contrast to centrifuges or chamber filter presses, personnel costs, downtime and wear are greatly reduced. The press water produced is directly reprocessed via the HUBER flotation unit – a closed water cycle. Customer satisfaction Thanks to high efficiency and a single point of contact, the customer plans to equip future sites, including in the USA and Denmark, with HUBER machines. Cooperation with manufacturer of plastic recycling machines A manufacturer of plastic recycling machines relies on HUBER technology as standard for the treatment of process water and sludge. Machines used: HUBER Drum Screen RoMesh ® Removes fine solids from the process water. The integrated rinsing system enables operation without the need for any fresh water supply. HUBER Dissolved Air Flotation Plant HDF and HUBER Screw Press Q-PRESS® These machines deliver above-average results in terms of separation performance, operating costs and maintenance requirements. According to customer feedback, they are significantly more efficient than competing products. Additional customer benefits Technical expertise remains with the respective experts Synergies in joint tenders Only one contact person for multiple processes Reliable on-site service through the HUBER partner network Most efficient flotation on the market Excellent filtrate quality Minimal personnel and maintenance costs Unbeatable after-sales support – global and fast High-quality design as the basis for long service life Summary HUBER offers the plastics recycling sector not only individual machines, but complete, well-thought-out solutions. Through high-quality technology, energy efficiency, a global service network and in-depth application knowledge, HUBER creates clear added value for machine manufacturers, operators and planners, while also making an important contribution to a sustainable recycling management.[...]

[...]Germany Membrane systems, especially membrane bioreactors (MBR), are wastewater treatment technologies that combine biological processes with membrane filtration. These systems are used in some sewage treatment plants instead of the conventional activated sludge process. A typical MBR system consists of a biological reactor in which microorganisms break down organic matter and a membrane filtration unit that separates the purified water from the solids. Solids separation prior to membrane filtration To ensure optimum performance, membranes must be protected from large solids. For this purpose, two-dimensional separation of solids with a screen with between 1 and 2 mm bar spacing is considered optimal. HUBER offers various systems in this range, each with its own advantages. System types and applications Both the HUBER Drum Screen LIQUID with perforated plate or as STAR version and the HUBER Rotary Drum Fine Screen ROTAMAT® RPPS or STAR are used. The two machine types are used for different requirements. For lower throughputs and small applications, a small size of the ROTAMAT® RPPS is sufficient. For large wastewater treatment plants, the Drum Screen LIQUID with its small footprint is the ideal choice. Treatment of screenings and flexible system solutions When it comes to treating the separated screenings, the well-known system with integrated screenings washing and compaction can be used with the ROTAMAT® machine solution. The flume that conveys the screenings from the Drum Screen LIQUID is very flexible and several machines can be interconnected so that the screenings can be treated collectively, e.g. with a HUBER Micro Strainer ROTAMAT® in tank. HUBER solutions in international projects Due to the different requirements of each plant, we recently commissioned a Drum Screen for use in two projects in Australia, for example. Two projects in Greece are also equipped with this solution. On the other side of the globe, several projects in America are running with ROTAMAT® STAR machines, which reliably protect the downstream membranes from contamination and thus ensure optimised operation. Flexible solutions for individual requirements HUBER offers the optimal solution for any situation where the wastewater needs to be screened before it goes through a membrane system.[...]

[...]UK water companies have identified water treatment works upgrades planned for AMP 8 as part of their Water Resource Management Plans. Several of these projects identify treatment works that require an increase in capacity and with that, new water intake screens. Intake screens need to be “fish friendly” and demonstrate compliance with the Eels Regulations. HUBER is able to help with its range of fine screens which have been designed: To ensure zero carry over of debris To provide mesh sizes down to 1mm, suitable for preventing the smallest elvers passing through the screen. To ensure reliable operation with minimal maintenance requirements To minimise the environmental footprint during both the screen manufacturing process and through its operational life with energy efficient operation and longevity achieved through stainless steel construction Each type of screen is available with a fish recovery and return (FRR) system that has been designed to safely remove fish prior to high pressure washing of the screen mesh. The screen installations are designed to provide large filtration areas and low approach velocities to comply with the Environment Agency’s best practice design guidelines. These fine screens are not only suitable for water intakes for drinking water plants but also cooling water, process water and desalination plant intakes. They can be manufactured in different grades of stainless steel ranging from 304L to Super Duplex to suit each particular application. HUBER Band Screen DualMax® The HUBER DualMax® is an “out to in” band screen available with woven mesh or perforated plate with mesh size from 10mm down to 1mm. For channel widths up to 6m and depths up to 18m. Suitable for flows up 2400 Ml/D per screen. It’s available with a fish bucket and fish return system. The laminar flow emerging from the central outlet reduces downstream turbulence and allows for shorter channels prior to the extraction pump(s) and reduced construction costs. HUBER Band Screen DualMax® HUBER Band Screen DualMax® HUBER Band Screen CenterMax® The HUBER CenterMax® is an “in-out” band screen available with woven mesh or perforated plate with mesh size from 10mm down to 1mm. For channel widths up to 4m and depths up to 18m. Suitable for flows up 2400 Ml/D per screen. It’s available with a fish bucket and fish return system. HUBER Band Screen CenterMax® HUBER Band Screen CenterMax® HUBER Band Screen DiscMax® The HUBER DiscMax® is a compact direct-flow screen available with woven mesh or perforated plate with mesh size from 10mm down to 1mm. For channel widths up to 3.5m and depths up to 25m. Suitable for flows up 1200 Ml/D per screen. It’s available with a fish bucket and fish return system. The laminar flow emerging from the downstream side of the screen reduces downstream turbulence and allows for shorter channels prior to the extraction pump(s) and reduced construction costs. HUBER Band Screen DiscMax® HUBER Band Screen DiscMax®[...]

[...]Maximum service competence all over the world When it comes to customer service, customers expect modern services, fast repairs, high competence and an extremely high degree of flexibility from machine manufacturers. The tasks of a HUBER service technician are very versatile. Starting with the mechanical assembly of HUBER machines and plants, continuing with the electrical wiring of all units with final commissioning, up to maintenance, repair and operator training, the service technician is the link between the customer and HUBER, worldwide. Digitalisation enables more efficient work in the field Only a few years ago, the work tasks of a HUBER service technician, as well as the coordination of service and maintenance orders, were structured differently. Service calls were documented with pen and paper on carbon copy forms and, apart from the resulting "paper chaos", often resulted in inefficient workflows. With advancing digitalisation, it is now almost unimaginable to carry out the entire order processing, including preparation and follow-up, without technical support and automated processes. So, today, the working week of a HUBER service technician starts with a look at a mobile device: In addition to a smartphone, the basic equipment of every HUBER service technician includes a laptop, tablet computer and signature pad. Before departure to site, the service technician checks all information relevant for the service assignment on a work order sent online, which, in addition to a description of the damage, also shows the work to be carried out, including all spare and wear parts supplied, as well as checklists and contact data required for the documentation of the work. On arrival at the site it is not uncommon for the service technician to encounter a problem that may require individual expertise. Equipped with HUBER Smartglasses, augmented reality offers almost unlimited possibilities for troubleshooting and problem solving. By using smartglasses the HUBER service technician works hands-free and is permanently connected to an expert - if necessary even on the other side of the world. By means of live video conferencing, the image the service technician has in front of him is transmitted in real time to various screens. The experts at the end of the line have the possibility to zoom into the moving image, add notes and drawings, mark individual image sections and give the technician visual and acoustic guidance and support in solving the problem. Immediately after completion of the assignment, all reports required for documentation are generated and digitally signed after consultation and review of the content by the customer. Finally, the complete work order documentation is automatically forwarded to the customer and HUBER internal systems for inspection and further use or processing. The coupled solutions within our service process form the basis for the correct use of digital components to continuously improve the productivity and quality of our services. For our worldwide customers, these groundbreaking digitalisation developments at HUBER Global Service mean outstanding advantages in quality, safety and efficiency![...]

[...]Schwarzenfeld, Germany HUBER supplies the sludge dewatering plant for Naabtaler Milchwerke The dairy company Bechtel recently built its own new industrial wastewater treatment plant. HUBER supplied three screw press units, type Q-Press® 620, for sludge dewatering. Naabtaler Milchwerke GmbH & CoKG, Privatmolkerei Bechtel, founded in 1908, is a large German dairy company based in the Bavarian town Schwarzenfeld. As one of the largest and most important dairies in Germany the company processes more than 1000 t milk a day. Selling to 27 European countries, the company is well established internationally as well. About 1,600 milk producers supply the milk which is processed to make cheese, yoghurt, curd, etc. As the company has been growing, also its water consumption and amount of wastewater generated has increased. The dairy therefore decided in 2016 to build its complete own wastewater treatment plant. The situation on site The industrial wastewater treatment plant clarifies the generated wastewater through flotation and downstream SBR technology. The produced surplus sludge is dewatered by two HUBER Screw Press Q-PRESS® 620 units. The press cake comes out almost solid and is transported away in mobile containers. For internal operational reasons they started with dewatering the flotate sludge only recently but the excellent dewatering and separation efficiencies achieved in the pre-tests seem to be sustainable. Since the dewatering units have been in operation, several truck transports a day have become unnecessary – an important economic advantage for the customer and, moreover, a benefit for the environment as traffic noise and exhaust gases are reduced. First operationa l experience In the initial operation phase, during which the operation of the units was optimised by HUBER SE, a final DR in excess of 18% was reliably achieved with surplus sludge dewatering. The separation efficiency of more than 95% was achieved even without additional filtrate treatment, contrary to competitive systems. The remarkable results for surplus sludge dewatering are only outperformed by the results achieved with flotate sludge dewatering where dream results of more than 30% are achieved. Energy and polymer consumption are low while the separation degree of > 98% is excellent. This is the point from where the operator OEWA will continue, supported by a master student, optimising equipment operation to tease out one or another percent. We wish our customers all the best and are of course still available for them with help and advice. Surplus sludge press 1 + 2 Flotate sludge press 3 DS inlet 0.8% - 2.5% 4.3 - 6.9% DS outlet 18.2% - 19.5% > 30% Separation degree > 95% > 98% ![...]

[...]Varna, Bulgaria The Bulgarian Black Sea Coast along the city of Varna with 300,000 residents is an important economic factor, especially due to its touristic potential. The European Union decided in 2002 to give aid money for the protection of the Black Sea, in particular for upgrading and building new local sewage treatment plants. The capacity of the sewage treatment plant at Varna could therefore be expanded to 450,000 PE and equipped with state-of-the-art technology. The main intention was to minimise the direct discharge of untreated wastewater to the Black Sea. They wanted to achieve that the quality of the discharged wastewater in the future meets the European standards for nitrogen and phosphate. At Varna, for example, one of the biggest sewers has been connected to the sewage treatment plant, the biological treatment stage has been upgraded. The digesters have been modernised and equipped with an energy-from-biogas system. HUBER won the public tender for the mechanical sludge thickening system in 2011. We supplied three type HUBER Screw Thickeners S-PRESS 4L still in the same year. HUBER screw thickeners have been used by customers all around the world for more than 20 years already. The thickener installed at Varna is a size 4L unit which, in 2008, was especially further developed for high hydraulic throughputs and high solids loads. The well-proven operation principle of a slowly rotating screw inside a massive stainless steel filter basket allows for virtually unlimited filter lifetimes. As the sludge to be thickened is conveyed against gravity and due to the special geometry of the conveying screw high thickening degrees can be achieved and break-through of insufficiently thickened sludge due to e.g. varying inflow conditions is effectively prevented. Reliable measuring equipment is used to control machine load and thus allow for automatic operation of the screw thickeners without operator attention. The operating data of the Varna plant prove the capacity and reliability of the HUBER machines: They thicken biological surplus sludge from static thickeners and, with a throughput of 75 m³/h and varying solids content of 1.6 - 2.4 % in the inlet, process an average solids load of 1500 kg/h. Despite the inhomogeneous inflow the sludge is reliably thickened to an extraordinary solids content of 6 - 8% which is the optimal basis for the following digestion. Due to the low connected load of only 3 kW per machine the balance of the new digester gas block heat and power plant is hardly affected. For more than two years since start-up all three machines have operated reliably and to the full satisfaction of the Bulgarian operators.[...]

[...]Staßfurt and Spaichingen, Germany HUBER Drum Screen LIQUID – an innovative product with more and more success in Germany In 2017, HUBER was successful with its innovative HUBER CarbonWin ® system for carbon removal, winning projects in two federal states of Germany. We are now working busily on implementing the two projects in Saxony-Anhalt and Baden-Württemberg. Project Staßfurt – first HUBER CarbonWin ® system installation in Germany Staßfurt is a town in the Salzlandkreis district in Saxony-Anhalt, Germany. On 31 st January 1851, the town became the cradle of the worldwide potash mining industry. It was the seat of the Royal Prussian Salt Mine, the first potash mine in the world. When the first potash mine shafts were driven, Staßfurt experienced an enormous economic upswing due to the mining industry itself but also due to the chemical industry settling there. The sewage treatment plant Staßfurt is designed for 40,00 PE. As more and more industries have settled there, the inlet COD load has steadily increased and is now equivalent to approx. 46,000 PE. The nitrogen concentration, however, would suggest a plant size of 27,000 PE. Given these basic conditions, an economically attractive solution had to be found to eliminate the very large amounts of carbon generated on site. The overall concept would have to include the change of the process management from aerobic to anaerobic sludge stabilisation and digestion. To achieve this, it is necessary to build a primary clarification stage. With its reduced space requirements and economic efficiency, the HUBER Drum Screen LIQUID represents the better alternative to a conventional primary clarifier. The HUBER Drum Screen LIQUID is applied for fine screening the wastewater and designed for a partial flow treatment of 100 l/s. As the total flow to the sewage treatment plant is 256 l/s under stormwater conditions, 156 l/s are discharged in this case. Due to the very high COD removal rate of the HUBER Drum Screen LIQUID, the biological sewage treatment stage on site (see fig. 1) can soon be shut down. This will save considerable amounts of aeration energy. Moreover, the primary sludge generated from fine screening with the HUBER screen will be converted into energy-rich biogas in the digester and this biogas converted into electrical energy in a block heat and power plant. The principle of the treatment process on STP Staßfurt The HUBER Drum Screen LIQUID is installed downstream of the grit trap instead of a primary settling tank and integrated into the existing system. The maximum flow to the screen is controlled by a flow meter and control valve. Special focus has been placed on the fact that the HUBER screen is a gravity flow system. HUBER Drum Screen LIQUID screens are installed horizontally in the channel. The water flows through the screen from inside to outside. The maximum filter surface can be utilised due to the horizontal position of the screen drum and at the same time a very high maximum possible upstream level. As the water level upstream of the machine increases, a filter carpet is developing on the filter mesh. Due to the filter carpet leading to a deep bed filtration effect, all particles are retained that are much smaller than the nominal aperture size of the mesh. When the water level upstream of the drum screen reaches the maximum permissible water level, the screen basket is cleaned. The fine screenings (primary sludge) are removed from the screen surface and accumulate in the internal trough from where they are conveyed by gravity to the downstream continuous thickener. The statically thickened sludge from the continuous thickener is pumped into the digester or optionally further thickened in a HUBER Disc Thickener S-Disc unit. Also the surplus sludge generated is thickened in the HUBER Disc Thickener S-Disc prior to being pumped into the digester. Project Spaichingen Situated on the river Prim at the foot of the Dreifaltigkeitsberg hills, Spaichingen is the third largest market town in the district of Tuttlingen. The river Prim is a tributary of the upper reaches of the river Neckar in Baden-Württemberg and flows along the steep escarpment of the Albtrauf hills. The mountains Dreifaltigkeitsberg and Heuberg belong to the Danube Hills Nature Park. Designed or a capacity of 17,000 PE, the sewage treatment works Spaichingen clarifies the municipal and industrial wastewater of the municipalities Spaichingen and Balgheim. The sewage treatment plant is already operated as an anaerobic sludge stabilisation process with digestion. The maximum stormwater flow that can be handled by the plant is 175 l/s. After completion of this stage of extension it will have a capacity for 225 l/s. The sewage treatment plant is equipped with an Imhoff tank that is used as a primary clarifier. The Imhoff tank has reached its design capacity limit, this means that it fulfills its task under dry weather conditions and will do so in the future, but will be overloaded under stormwater conditions. Due to the planned plant extension by another 50 l/s a solution had to be found to improve the situation. Various options were discussed. The first approach under discussion was to integrate a two-line primary clarifier and shut down the Imhoff tank. There would have been enough space on site for this solution but they actually did not want to give up the Imhoff tank that still worked well with dry weather conditions and were therefore looking for an alternative. Mechanical carbon removal with a HUBER Drum Screen LIQUID as fine screening system was then found to be the all in all more economical solution. With the use of the Drum Screen LIQUID (with a throughput of 100 l/s in normal operation) it is possible to reduce the load on the Imhoff tank during peak hours and establish a controlled plant operation. Despite the capacity extension, the Imhoff tank can still be operated at its optimal operating point and, depending on its capacity utilisation, the HUBER Drum Screen can additionally be switched on as required to meet the requested separation results. A specific feature of this project is that the HUBER Drum Screen LIQUID will be installed into an old aeration tank that is not needed anymore. There will additionally be a building in the tank to ensure optimal working conditions. The throughput is regulated by a flow meter with control valve installed downstream of the grit trap via gravity lines to the HUBER Drum Screen LIQUID. The principle of the treatment process on STP Spaichingen The wastewater flows through the HUBER Drum Screen LIQUID in tank from inside to outside (see fig. 3). The wastewater is fed via a gravity line downstream of the grit trap. As the water level upstream of the machine increases, a filter carpet is developing on the filter mesh. The fine screenings (primary sludge) are removed from the screen surface and accumulate in the internal trough from where they are conveyed to a downstream HUBER Wash Press WAP® liquid. With this dewatering system, a freely adjustable, defined DR content of the primary sludge can be achieved. An eccentric screw pump with buffer tank delivers the mechanically thickened primary sludge to the existing digester. The generated surplus sludge is thickened together with the primary sludge of the Imhoff tank or optionally further treated in a static thickener prior to being passed on to the digester. The projects Staßfurt and Spaichingen are in the construction phase and will go into service in summer 2018. Both sewage treatment plants are taking another step forward together with HUBER towards becoming a sewage treatment plant of the future.[...]

[...]Faroe Islands The Faroe Islands are probably known mainly to nature lovers with a penchant for rather unusual destinations. So it was initially something interesting and different for a change when HUBER received an enquiry in mid-2017 for a faecal sludge treatment plant for predominantly domestic sludge. At least 10,000 t of sludge were to be received annually, screened and then dewatered to ≥ 35 % dry residue (DR). Transport with suction and tanker vehicles What makes this project special is first and foremost the input DR: The sludge is collected island-wide with suction and tanker vehicles of the Simon Moos company. These special vehicles have several tanks and, with the addition of polymer, can thicken the sludge to 9 – 11 % DR, or even more if the sludge is left standing for a longer time. This reduces the unnecessary transport of water over the sometimes long distances on the island. The task Screening of flowable sludge is a standard task for HUBER and has been tried and tested many times, but the pre-thickened material is almost solid and cannot be screened in this condition. However, the challenge was to treat sludge from 2 % to about 11 % DR equally. HUBER Reception Bunker, Wash Drum and Screw Press After considering various options, the first budget offer was for a HUBER Reception Bunker RoSF7 with re-dilution of the sludge as required, followed by a HUBER Wash Drum RoSF9 for sludge screening. Afterwards, the sludge was to be collected in a buffer and from there pumped to the proven HUBER Screw Press Q-PRESS® for dewatering. Samples, analyses, trials As a next step, a sludge sample was analysed in the HUBER laboratory in autumn 2017 and dewatering tests were carried out – with promising results. The interest of the operator IRF in Leirvik was now high and it was only a matter of evaluating the "unknown" with the thickened sludge. During a visit to the Faroe Islands in the summer of 2018, the delivered sludge was inspected, simple tests for re-dilution were carried out and the operator's expectations and requirements were discussed. IRF is the central supplier and disposal contractor for water, wastewater, waste and energy for most of the Faroe Islands. Based on the findings and agreements of the visit, it was now possible to render the offer more precisely in cooperation with a Danish plant constructor and to start with the detailed planning of process engineering and construction. The machines in the order placed with HUBER The order to HUBER was placed in December 2020 and included the following components for delivery in December 2021: 1x HUBER Sludge Reception Bunker RoSF7 with integrated unit for re-dilution 1x HUBER Wash Drum RoSF9 for sludge screening 1x HUBER Wash Press WAP® for dewatering of screenings 3x thin sludge pump for feeding the screw presses 3x flocculant conditioning plant 3x HUBER Screw Press Q-PRESS® Agreed guarantee values achieved After completion of the building and process technology, the wet commissioning was successfully completed in December 2022 against a spectacular natural backdrop. The agreed guarantee values of 35 % DR in the dewatered sludge were achieved and this with minimal polymer use. To sum up: IRF receives future-oriented technology for the treatment of faecal sludge and HUBER adds a reference to its project portfolio in the midst of impressive surroundings.[...]

[...]Waßmannsdorf-Berlin, Germany About 3.4 million people live in Germany's capital Berlin presently. Together with the local industries they produce a daily amount of about 600,000 m3 of wastewater under dry weather conditions. The generated wastewater is clarified on six sewage treatment plants, one in the city centre and five large works distributed around the city. These sewage treatment plants discharge their wastewater into a receiving water course each. STP Waßmannsdorf lies in the southern part of the city within intermediate proximity to the new Berlin-Brandenburg airport. With a clarification capacity of 230,000 m³ wastewater per day (under dry weather conditions) it is designed for 1,300,000 PE. The entire amount of the city's wastewater is collected in main pumping stations via collecting lines and from there pumped to the sewage treatment works. On STP Waßmannsdorf the wastewater is fed into the screen building via two huge vertical pressure pipelines and distributed to four treatment lines. As the existing old screening system on site had shown its age and screens had to meet ever increasing requirements due to changing screenings composition, the plant operators decided to replace all machines in the screen building with new ones. In addition, the separation efficiency of the existing 8 mm perforated plate screen seemed to have become insufficient. That is why they decided during the planning phase to install a two-stage screening plant consisting of a multi-rake bar screen with 20 mm bar spacing as course screen and a 6 mm perforated fine screen. Due to the given conditions and scarce space in the building it was no easy task for the planning office PWU in Magdeburg to plan this project in detail in cooperation with Berliner Wasserbetriebe and put it out to tender. Highest attention was paid to two requirements: robust screens and flexibility of the manufacturer. Some of the requirements in the tender specification were very high and bidders had to submit a calculation together with their bid to prove they can meet these requirements. It had to be verified whether the supplier is able to manufacture products that can be tailored to suit specific project requirements. Not least due to the fact that we had already supplied four RoSF 4 Grit Washer units (size 16 l/s) in 2011/2012 via ATM Hartmann (Berlin), we finally received the order in autumn 2013 to supply one coarse, one fine screen and one screenings wash press for treatment line 1. In view of the site conditions the order was initially limited to one line. Placement of the order for the other lines was subject to trouble-free operation of the first-line screens during an eight-week test period under predefined load conditions. After mechanical installation of the complete plant at the end of 2013 and completed electrical installation the plant was put into operation in spring 2014. Despite a number of interfaces plant start-up went off without any problems so that the new screening system could be put into test operation after a very short time already. During this test period all mechanical equipment operated without troubles even during several heavy rainfalls with extremely high pollution loads. Throughout the whole period only one problem report was received from the coarse screen, this was caused by a big squared timber due to which the screen was reliably stopped by the integrated mechanical safety shutdown function (torque control) to protect it against damage. At the end of the test period it had to be proven that the screens can cope with the defined load conditions. The screens had to reliably manage water level differentials of up to 2 m with enormous amounts of screenings (90 kg per minute) upstream of the screens. It turned out during the test period already that such conditions were not at all exaggerated requirements on the part of the customer but real scenarios as they occur regularly on STP Waßmannsdorf. Since both screens and the wash press performed to the full satisfaction of the customer, we received in summer 2014 also the order for the equipment for the rest of the four lines. Presently, the screens of line 4 are installed, i.e. when the structural measures are finished. According to the time schedule the overall project is planned to be finished by the end of 2015. After project completion the following HUBER machines will be operating on site: 4 HUBER RakeMax® Multi-Rake Bar Screens, size 5300 / 2552 as coarse screens; Bar spacing: 20 mm with tear drop shaped bars (size 8 mm), throughput: 2700 l/s per screen 4 HUBER Belt Screen EscaMax® units, size 6000 / 2552 as fine screens, aperture: 6 mm, throughput: 2700 l/s per screen 4 HUBER Wash Press WAP units, approx. 2500 mm feed trough length, throughput: 8.5 m³/h per Wash Press 4 COANDA Grit Washer RoSF 4 units, size 2, throughput: 16 l/s per Grit Washer In operation since 2011 – HUBER COANDA Grit Washer units, type RoSF 4, size 16 l/s HUBER Belt Screen EscaMax®: Blinding of the screen during load operation and insertion of the bottom part of a two-part HUBER EscaMax® screen into the screen building[...]

[...]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[...]