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[...]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[...]

[...]On July 25, the first HUBER Cycle Day, no fewer than 85 of our staff came to work on their bicycles. HUBER set up the Cycle Day to point its employees to a good but often forgotten alternative to driving by car. "Our employees drive 16,000 kilometres by car a day to come to work and back home, riding by bike is a possibility to do something for one's health and for the environment", explained Dr. Johann Grienberger. He himself pedalled the 22 kilometres way from home to Erasbach. The company invests 50 Cent per cycled kilometre, i.e. a total of € 992, into the further forestation of the HUBER-Natur-Park. This was additional motivation as well as the friendly reception with free cereal bars and beverages. The colleagues came from near and far on their bicycles, one of them covered 42 kilometres already early in the morning. In view of the fact that we have a lot of shift workers and commuters who drive more than 100 km the participation in the event was a great success. For some the HUBER Cycle Day was a completely new experience, for our regular cyclists it was a day like any other. But all of them agreed that is something we should definitely repeat next year! Maybe we could achieve with this event that we will see more bicycles parking in front of our entrance doors in the future.[...]

[...]Clean water for the Sinai Peninsula: The water treatment plant in Bahr El-Baqar (Egypt) has recently been awarded by Guinness World Records as the world’s largest plant of its kind. Every year, more than two billion cubic metres of water are to be treated here on an area of about 650,000 square metres. The Berching-based company HUBER is supplying, among other equipment, 128 SOLSTICE® sludge turners for the large-scale project, from which about half a million people will benefit in the future. HUBER delivers 128 HUBER Sludge Turner SOLSTICE® units Capacity: over 2,000,000,000 m³ of water per year (over 64 m³ per second) Total area: 650,000 m² Chief Technology Officer Dr. Johann Grienberger: “Innovative technology to correct ecological imbalance in the future.” The Bahr El-Baqar drainage canal runs from the Egyptian capital Cairo along the Suez Canal through Lake Manzala into the Mediterranean Sea. Partially untreated municipal and industrial wastewater as well as polluted surface water from agriculture have so far led to an ecological imbalance. Total order volume of 700 million US Dollars: joint venture brought HUBER on board To solve this problem, the joint venture Orascom Construction and Arab Contractors was awarded the contract in 2018 to build a water treatment plant for more than 700 million US dollars. For this, the joint venture brought HUBER SE on board, among others: the Berching-based company is supplying its innovative technology for sewage sludge drying with solar energy for the world’s largest sewage sludge drying project. The water treatment plant has an annual water capacity of over two billion cubic metres, which corresponds to about 5.6 million cubic metres per day and over 64 cubic metres per second. The Bahr El-Baqar plant covers a total area of 650,000 square metres, and the area of the solar sewage sludge drying plant is 160,000 square metres. “Pollution of the Bahr El-Baqar drain has so far led to a severe ecological imbalance in the region. With our innovative technology, we are helping to treat very large volumes of water. The fact that the local people will benefit from this major project makes us proud,” says Dr Johann Grienberger, Chief Technology Officer of HUBER SE. HUBER Sludge Turner SOLSTICE ® units dry sewage sludge for reuse The purification process produces very large quantities of sludge during water treatment. To reduce the amount of sludge to be disposed of, it is mechanically dewatered and dried by the fully automatic sludge turners using solar energy. The 128 HUBER Sludge Turner SOLSTICE ® units dry the sludge produced during water treatment to a quarter in mass and volume and turn it into granules. The end product is used in agriculture, for example as soil fertiliser and cultivating agent. “Drying sewage sludge with solar energy is a sustainable and environmentally friendly process: the dewatered sludge is distributed in a greenhouse structure and dried homogeneously by the radiation of the sun into a stable and odourless granulate,” says Dr Grienberger. “The process ensures the best mixing and aeration of the entire sludge bed – with minimised odour and dust development, optimised evaporation performance and low power consumption.” 490,000 tons of dewatered sewage sludge per year: fully automated drying process using solar energy The central element of the HUBER process for sewage sludge drying with solar energy is the HUBER Sludge Turner SOLSTICE ® : the machine takes care of spreading, granulating, aerating, turning and mixing of the sludge. Overall, the proportion of dry residue from 490,000 tons of dewatered sewage sludge annually will be increased from 24 to 75 percent. Thus, only about 160,000 tons of stable dry granulate need to be disposed of per year. In 16 greenhouses, a total of 128 HUBER sewage sludge turners will operate on eight lines each in the future. In addition to the 128 sludge turners, HUBER supplies the fully automatic sludge feed and discharge system by means of moving floor systems and 64 HUBER Screw Conveyor Ro8 T units. These have a total length of three kilometers, which corresponds to the length of about 30 soccer fields. In addition, the Berching-based company supplies the control system for the entire solar drying plant and the complete detailed process engineering. From concept layout to complete package with detailed plant layout: the engineering process In the engineering process, HUBER’s project management team gradually turned the concept layout into a complete package with a detailed plant layout and technical documentation that met the customer’s high requirements. “In order to master the challenges of a project of this dimension, a high degree of detailed project planning was necessary at a very early stage – across departmental and company boundaries,” says Georg Heinzelmann, Head of Project Management at HUBER SE. “For everyone involved, there were numerous hours of technical coordination to be done internally and externally, as well as consistent coordination between sales, project management, technical departments, the customer and suppliers.” Tight time frame: successful project implementation within one year Another challenge in the implementation of the project was the narrow time window. There were only twelve months between the technical approval and the delivery of the last machines to Bahr El-Baqar. Within this tight time frame, the project team not only ensured that the 128 HUBER Sludge Turner SOLSTICE ® and 64 HUBER Screw Conveyor Ro8 T units were ready for dispatch. The entire purchasing scope was also coordinated, suppliers were kept on schedule and weekly deliveries were made over a period of nine months. 40,000 hours of production time, 39 partial deliveries and 270 containers: the deliveries in numbers On 26 November 2020, the last machines were delivered within the given time from the production site at HUBER’s headquarters in Berching. The following figures provide a good insight into the dimension of this project: a total of about 40,000 hours of production time were required, so that at peak times six sludge turners or four screw conveyors of approx. 50 metres each were delivered per week. A total of 39 partial deliveries including direct deliveries from suppliers were organised and 270 containers were shipped to the construction site on the northern Mediterranean coast of Egypt. Despite the Corona pandemic: project on the home straight The Corona pandemic has severely limited the possibility to get a regular and comprehensive overview of the construction site. Despite these adverse circumstances, those involved in the project have accomplished to manage this major project and enter the home stretch. The award of the official Guinness World Record a few months ago is both a cause for joy and additional motivation to bring the Bahr El-Baqar project to an equally successful conclusion. The milestones of the project: September 2019: receipt of order February 2020: first delivery to Bahr El-Baqar December 2020: completion of main delivery March 2021: start of assembly of the HUBER machines and equipment August 2021: start of commissioning Picture Gallery The HUBER SRT system – solar sewage sludge drying with the HUBER Sludge Turner SOLSTICE® HUBER Sludge Turner SOLSTICE® unit[...]

[...]Guard grate in accordance with DGUV regulation 103-007, rectangular, made from 1.4307 (AISI 304 L) stainless steel, universally applicable and retrofittable under manhole covers. Guard grate manufactured from angle profile, load-bearing up to 200 kg, with hinges and gas pressure spring for easy opening and closing. Support made of angle profile, for internal bolted fixing under the manhole cover. Guard grate for mounting under the manhole cover and above or next to the climbing system. Both grate and support are shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Fixing material included. Options: 1.4404 (AISI 316 L) stainless steel Removable grate for round manholes Non-standard sizes[...]

[...]In the year of its 150th anniversary, HUBER SE 2022 is expanding its corporate headquarters in Berching. On Wednesday, 6 April, the official ground-breaking ceremony for the construction of a new production hall took place; the completion of the construction is also planned for this year. The investment volume of the new building with an enclosed area of 7,000 m² amounts to approximately ten million euros. With this expansion, production capacities will increase to a total of approx. 35,000 m². Groundbreaking ceremony by District Administrator Willibald Gailler, Berching's Deputy Mayor Christian Meissner and HUBER’s Executive and Supervisory Boards CEO Georg Huber: “A very special day in the 150-year history of the company” The groundbreaking ceremony took place on Wednesday, 6 April, with the participation of District Administrator Willibald Gailler, Berching's Deputy Mayor Christian Meissner and the responsible architect Hans-Jürgen Distler (Distler Architekten + Ingenieure GmbH). The entire HUBER management board in the person of CEO Georg Huber, Dr.-Ing. Oliver Rong (Deputy CEO and Director Engineering & Production), Dr.-Ing. Johann Grienberger (Director Technology) and Rainer Köhler (Chief Sales Officer) started the expansion of the headquarters together with the members of the HUBER supervisory board Alois Ponnath (Supervisory Board Chairman), former State Secretary Hans Spitzner (Supervisory Board Deputy Chairman) and Johanna Rong (shareholder and Supervisory Board member). CEO Georg Huber: “A very special day in HUBER's 150-year history” The two existing production halls are being expanded in the southern direction of the company premises. In a first step, the parts manufacturing shop area will be expanded by around 7,000 m² of production space including social and office space. In the course of this alteration, the existing halls can be relieved and thus the other process areas can also be expanded. In addition, employees will have the opportunity to gradually reduce shift work and thus enjoy significantly improved working conditions. The new production hall will close an existing free space on the site between the HUBER Global Service hall and the P2 hall, thus making optimal use of the vacant land in this area in the future. “Today is a very special day in HUBER's 150-year history, because with the groundbreaking for the construction of the new production hall we are committing ourselves to our headquarters in Berching,” said CEO Georg Huber before the official groundbreaking ceremony. “It is very pleasing that we have to expand the production capacities at the company headquarters again because of the very good business development.” Exactly 30 years after the construction of the first production hall at the Berching-Erasbach site, HUBER is taking another step towards a successful future. At that time, in 1992, the company was based in the town centre of Berching and relocated its production to the site of today’s company headquarters. In the following years until today, the production facilities were expanded several times. Dr.-Ing. Oliver Rong: “We are underpinning the very successful development and positioning ourselves powerfully for the future” “In addition to the strategic establishment and expansion of production capacities in important international target markets, our headquarters in Berching remains the largest production site of the HUBER Group,” emphasises Dr.-Ing. Oliver Rong, Deputy CEO and Chief Engineering & Production Officer. “By again expanding production capacities in Berching in HUBER’s anniversary year, we are underpinning the very successful development and positioning ourselves powerfully for the future. Not least during the Corona pandemic, the high vertical range of manufacture of our production proved to be very successful and impressively demonstrated HUBER’s resilience.” Over the past decades, HUBER has continuously developed new markets and served them centrally from the company headquarters in Berching. As a result of the positive developments also in the USA and China, the sales subsidiaries there have in the meantime developed into fully-fledged production sites and are increasingly successful in serving the demand in their respective home markets. Nevertheless, even the existing production halls in Berching are now no longer sufficient to cope with the steadily increasing order situation. “HUBER is active worldwide, but at home in Berching,” emphasised District Administrator Willibald Gailler in his speech. “It is phenomenal what has been created here at HUBER over the last decades. You are one of the world market leaders in your industry and the district of Neumarkt is proud of that.” 13,000 m² of new space for around $35 million: production at the USA site expanding to full vertical range of manufacture in 2022/23 On the occasion of the company's 150th anniversary, the American subsidiary HUBER USA is also taking another big step towards completely independent local production in Denver, North Carolina. With capacities in parts manufacturing (welding) and final assembly, the production there currently only represents a part of the necessary process chain. In the course of 2022 and 2023, the location will expand to the complete vertical range of manufacture, including its own pickling hall, cutting and machining. Approximately 13,000 m² of new production and office space will be created with a total investment volume, including machine technology, of around 35 million US dollars. New process technologies and business fields In addition to completely new process technologies in water and sludge treatment, which require new products, HUBER is also successively opening up new business fields. For example, the company is currently developing a range of products for the Intake segment (e.g. water extraction and intake for power plant cooling) and machines in the Cloth Filtration segment for advanced wastewater treatment. “We are very positive about the future and look forward to the steady development of the company,” says Dr.-Ing. Oliver Rong. “Strategic production planning is already looking at additional future expansion steps, which are expected to start as early as 2023.”[...]

[...]HUBER Technology, Inc. began construction on a new facility which will serve as both the Headquarters and manufacturing center for the North American arm of the business. To be completed by the end of the year, the new facility at Charlotte metropolitan area in North Carolina will be able to house a growing staff as well as support a multi-million dollar manufacturing operation. This begins an exciting new chapter for HUBER Technology, Inc. and the HUBER Family. Committed to the same values of quality, ingenuity and workmanship as our parent facility in Berching, Germany, HUBER Technology, Inc. North America Manufacturing will also provide well-designed, well-crafted water and wastewater solutions for the municipal and industrial sectors. The expansion located at an 20 acre area includes the addition of manufacturing capabilities, bringing even quicker turnaround, more flexibility and expanded capacity to an already worldwide operation. “ The construction of our manufacturing facility comes at a time when demand for HUBER solutions has hit an all-time high across the globe, and HUBER Technology, Inc. has decided to rise to meet that challenge. Strategically positioned and poised to deliver the product on increasingly demanding deadlines, HUBER Technology, Inc. is confident that the opening of a manufacturing facility not only serves the needs of local customers but also contributes in the growth of the company as a whole. ”, states Henk-Jan van Ettekoven, President of HUBER Technology. Designed to not only support cutting-edge manufacturing technologies with an area of more than 4,000 m², the new Headquarters will also feature updated office, conference and meeting facilities to provide a higher level of support and training for the nation-wide US representative network, but also for North American and the wider wastewater community. The ground breaking ceremony took place on Thursday, March 14 th . Grateful for the opportunity, HUBER is excited to deliver this news and ready to get started on this new chapter of HUBER Technology, Inc.’s future.[...]

[...]Complete Plants are complete systems for the mechanical treatment of small to medium amounts of wastewater from 10 to 300 l/s. Basically, a Complete Plant consists of two main components: screen and grit trap. As an option, other systems can be added, such as screenings treatment units, aeration systems or a grease trap. Since 2000, mechanical state-of-the-art wastewater treatment has additionally comprised a grit washing plant so that the screen, grit trap and grit washer are usually mentioned in the same breath. In case of conventional installations with ‘independent’ units the optimal arrangement is easy to achieve because the screen, grit trap and grit washing plant can simply be combined to a complete system as necessary. In case of Complete Plants, however, the combination of all three steps is more difficult because the screen, grit trap and grit washing unit are directly connected hydraulically. We now have managed to integrate our intelligent and patented grit washing system in the grit trap of a Complete Plant. The grit washer is arranged directly behind the grit trap and fed directly from the horizontal grit removal screw of the grit trap. Inside the grit washer, grit and organics are separated in a typical upflow process. We use our extremely efficient hydrostatic pressure meter, which is well proven in thousands of ‘big’ grit washing plant installations. The major advantage of this hydrostatic system is that the grit washing plant continues to wash and discharge grit even during feeding. The discharged treated grit is statically dewatered and collected in a container with a loss on ignition of normally below 3%. The washed out organics are dosed into the effluent from the Complete Plant to avoid the accumulation of organic particles. With this innovation we enable also small wastewater treatment plants with a flow of less than 100 l/s to treat their grit at low cost before its disposal or utilisation.[...]

[...]Minimise wear and increase operating reliability For the operating safety and reliability of wastewater treatment plants, it is necessary to separate the grit transported with the wastewater and other mineral materials from the putrescible organic matter. For this purpose, grit chambers of various designs are used in practice. Depending on the type of grit trap, grease can also be separated in addition to grit. The removal of grit from the wastewater serves to prevent operational troubles, such as grit sedimentation (in aeration tanks and digesters), increased wear (of pumps, stirrers) and clogging (of removal hoppers or pipelines). In addition, it is also used to reduce material wear of mechanical sludge treatment equipment (e.g. centrifuges, etc.). The aim is to separate as much as possible of the grit and inorganic material up to 0.20 mm grain diameter. Different types of HUBER Grit Chambers Especially grit chambers such as the HUBER Grit Trap GritWolf® are capable of separating fine sand (“sugar sand”) of significantly smaller grain size with a high separation efficiency. Due to the considerable organics content in the classified grit, longitudinal grit traps are nowadays additionally equipped with an aeration system. This partly prevents the organic matter from settling in the grit chamber and, at the same time, floating matter (grease) can be partly blown up by the injected air and retained in a separate grease trap. Special grease removal systems remove the grease automatically and pass it on for further utilisation. Different types of HUBER Grit Chambers are available for the separation of grit and grease from wastewater. The grit separated in the grit chamber is usually freed from organic matter in a subsequent grit washing process .[...]

[...]HUBER Grit Washing Plants and System Components Separation of organics from the mineral particles Grit Washing Plants Wash Drum Grit from grit traps of wastewater treatment plants and grit from sewer and road cleaning are heavily contaminated with organic matter and debris. The high content of organic material, the wide volatile solids ratio of 10 to 80%, is the reason why such grit slurries do not dewater well. The solids concentration remains somewhere between. The common performance criteria for the quality of grit removal are: The capture rate of 0.2 mm diameter grit particles; and the volatile solids concentration of the removed grit. The end product after effective grit treatment is a reusable product with a volatile solids ratio of less than 3 % and a water content of below 10 %. Such grit treatment not only reduces the volume and mass of the removed grit, but also the disposal costs. If the clean grit product is reused, e.g. for road bedding, costs for grit disposal could be avoided.[...]

[...]Grit Washing Plants Separation of organics from the mineral particles. The clean grit is removed through a classifying screw, statically dewatered and discharged into a container. The clean grit is removed through a classifying screw, statically dewatered and discharged into a container. HUBER Coanda Grit Washing Plant RoSF4 Grit Washing Plants HUBER Grit Washer RoSF4 T Grit Washing Plants HUBER Grit Washer RoSF G4E Grit Washing Plants Grit from grit traps of wastewater treatment plants The grit contained in the wastewater is usually removed in grit traps by gravity or centrifugal force to protect downstream equipment. Various different grit trap systems are available for this purpose which however separate not only the grit but frequently also many of the organic particles, dependent upon the hydraulic load (inflow). The separated particles are then pumped from the grit trap to a grit classifying unit (screw or pilgrim step classifier) which remove the solids from the flow without any differentiation. As a result, the loss on ignition of the classified grit trap material varies from 10 % to 80 % depending on the screen bar spacing and inflow. The water content of the grit trap material is accordingly high (50 - 80 %). The result are inevitably high costs for removal, transport and disposal, and in addition very bad hygienic conditions. Grit from sewer systems, gully waste, road refuse These raw materials are more or less contaminated with organics (sludge, leaves, etc.), but they contain also foreign matter that is similar to domestic waste (such as cans, screenings, stones, etc.), and a considerable amount of water. Additionally, the individual raw materials (grit, organics, foreign matter) vary seasonally so that their loss on ignition will range from 5 % to 80 % and their water content from 40 % to 90 %. This results in inevitably high costs for dewatering, removal, transport and disposal. FAQ Frequently Asked Questions Why is grit washing needed? In municipal wastewater treatment, grit is separated in a grit trap. This separation takes place by sedimentation, i.e. the grit settles in the grit chamber after sufficient retention time. However, since there are not only mineral substances such as grit in the wastewater, but also many organic solids, these also settle to a greater or lesser extent. As a result, when the grit is discharged from the grit chamber, it sometimes contains a large amount of organic solids. This contamination of the grit with organic matter hinders, among other things, cost-effective landfilling or reuse of the grit. Grit washing with a HUBER Grit Washer RoSF4 solves this problem and produces clean grit with an organic content of less than 3% loss on ignition, the HUBER Grit Washer RoSF G4E reduces the organic content to ≤ 5%. What are the characteristics of a good grit washing system? A good grit washing system is characterised by its ability to wash out the organic substances in the grit so that the loss on ignition in the washed grit is < 3%. In addition to the effective separation of organic and mineral components, the retention of fine sands is also decisive in practice, which is taken into account in the design of HUBER Grit Washing Plants . Can sewer grit be washed together with sewage treatment plant grit? HUBER has solutions for the processing of sewer grit and grit from sewage treatment plants as well as road sweepings. Depending on the quantities and composition of the material to be processed as well as other general conditions, we design a tailor-made HUBER solution for grit treatment . Why should subsequent grit washing be implemented after grit separation? Conventional grit classifiers separate virtually all solids contained in the grit trap effluent. This classified and partly dewatered grit is usually more or less contaminated with organic particles. With further treatment in a subsequent grit washer , the organics are separated from the mineral particles. What is the difference between a grit washer and a grit classifier? Both the grit washer and the grit classifier are fed with a grit-water mix. In the machine, the grit is separated from the water. In contrast to the grit classifier, the grit washer is able to wash the separated grit. This means that the separated grit is freed from organic components as far as possible. The grit washer thus produces grit that is almost free of organic matter, whereas the separated grit in the grit classifier may contain a considerable amount of organic matter. What is the advantage of classification with simultaneous grit washing compared to simple classification? Due to the additional washing, the organic content in the discharged grit can be guaranteed below 3%. This leads to possible lower disposal costs and volumes.[...]