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[...]STP Vorra , Germany STP Vorra chooses a HUBER RoDisc® Screen The trickling filter plant with separate secondary clarification tank on STP Vorra was built in 1982 and had to be redesigned in 2006 to meet ATV-DVWK A281 standards. It was necessary to build a new bigger secondary clarification tank with a volume of 350 m³. Taking into account the conditions on site (soil properties, high groundwater level) the costs for building this new clarifier (including sheet pile, unwatering, distribution structure, inlet/outlet line, secondary clarification tank) were estimated to amount to approximately € 525,000. In search of low-cost alternative solutions plant manager Mr. Sauerbrey contacted HUBER SE in 2007. Within a very short time we came to the conclusion that the desired improvements could be achieved with the use of a RoDisc® screen. It was the wish of the municipal council to run tests at first to be sure about the actual operating efficiency of our screen. The test unit achieved the requested results for all parameters. Test results: Inlet AFS = 22 mg/l -> Outlet AFS = 8 mg/l Inlet COD = 51 mg/l -> Outlet COD = 37 mg/l After thorough investigation of technical options by the engineering office Siegle it was decided in 2009 to have another design proposal prepared that should include the alternative of a disc filter system for installation downstream of the existing secondary clarification tank. The total costs for this measure were now estimated to amount to approximately € 330,000. Additionally, another € 50,000 could be saved with execution planning. So, compared to a conventional solution (building a new secondary clarification tank), the investment costs could be reduced by approximately € 250,000 and also the required parameters can be fully met. After placement of the order for the supply and installation of the HUBER RoDisc® screen at the end of 2011 the screen was commissioned already in June 2012 and has since operated to the full satisfaction of the plant operators. HUBER SE would like to take this opportunity to thank everyone involved in the project for their cooperation and confidence in our products and services, in particular the customer (municipality of Vorra), the operating staff on site, plant manager Mr. Sauerbrey, and the engineering office Siegle from Nuremberg.[...]

[...]Zell am See, Austria The Austrian municipalities Zell am See and Bruck an der Glocknerstraße operate a water supply facility together which is fed from a spring at 940 m above sea level. The minimum delivery of the spring is about 40 l/s. It lies in the Fuscher Valley near Salzburg in the Glockner mountain chain. The highest peak of the Glockner mountains and Austria's highest mountain is the Großglockner. Directly after the well shaft the drinking water flows through an inverted syphon through the valley bottom to the inlet structure where it is filtered by a HUBER RoDisc® screen. The RoDisc® screen is equipped with 10 discs which are covered with a 18 µm stainless steel mesh. The screen is used for the first stage of water treatment and serves to protect downstream systems. It retains the minerals contained within the spring water, mainly small plates of mica schist which especially occur after storms and during the melting of snow in spring. The RoDisc® screen not only protects the turbine, it also improves the pollution prevention in the drinking water reservoir. The normal capacity of the water works is 370 MWh/a which is equivalent to the supply of about 85 households. Initially, cylindrical reversible flow filters were planned to be used which are known from many drinking water applications. Due to the right information at the right time the customer's decision makers immediately recognised the benefits of the RoDisc® screen. As no DVGW or ÖVGW test guidelines were available for this type of filters, the customer insisted to have the non-metallic materials tested for their suitability. For the use of the RoDisc® screen in a drinking water application the non-metallic materials required the KTW certification and DVGW certification according to work sheet W270. The results of the tests according to the DVGW work sheet W270 confirmed that, in terms of microbiological aspects, the non-metallic materials tested are suitable to be used in drinking water applications. The KTW certification tests showed that the non-metallic materials used do not give off any substances to the drinking water and do not unacceptably affect the drinking water. Two of the benefits the RoDisc® screen offers were the main reason why the customer decided to buy the HUBER product: First, the HUBER RoDisc® screen operates with a very low pressure difference of 10-15 cm WC. Second, HUBER does not use any adhesives in the manufacturing process. Other advantages of the HUBER RoDisc® screen are its space-saving design and filtration by gravity due to the small pressure loss. The height difference between the water level upstream and downstream of the RoDisc® screen is the driving force in the filtration process. It is not necessary to lift or suck of water. The RoDisc® screen can easily be tailored to suit specific site requirements and minimises the requirements for structural measures. It is a simple, economical and efficient solution. Water works operators are therefore well advised to think about whether to use a HUBER RoDisc® screen to pretreat drinking water.[...]

[...]Frame window, rigid, ready for installation Made from two-sheet special 1.4301 (AISI 304) stainless steel profile with intermediate special plastic core to prevent thermal conduction, thermally insulated according to EN 10077, Uf = 2.70 W/(m²*K). Glazing bead invisibly fastened . Frame, designed for dowelling into window soffit, including fixing material. Machine ground surface finish. Dry glazing with insulation glass, without KTW approval Options 1.4404 (AISI 316 L) stainless steel Special glazing (e.g. security glass) Outside window sill made from stainless steel Water chamber window, with drain holes towards the dry side, wet glazing KTW approved Secure to prevent forced access according to DIN EN 1627, RC3 (only possible with wet glazing) Multi-wing window Other designs available on request[...]

[...]Universally applicable for controlled ventilation of buildings, especially in the field of potable water supply, and for plants with increased security requirements. Rigid safety louvre TT2.JW (for external face of the wall), attack proof, ready for installation, of rigid all welded construction, completely made from 1.4307 (AISI 304 L) stainless steel. Frame, made from Z profile , 3 mm thick, designed for internal bolted fixing, with access to the anchors only from the interior wall surface. Slats, 3 mm thick , rigidly welded, with the slats staggered so that penetration is impossible even with moveable hoses. With 1 x 1 mm fly screen on the inside. Both frame and slats are shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Options 1.4404 (AISI 316 L) stainless steel Lacquered on the outside Ground surface finish Additional internal frame with removable fine filter for dust and pollen, held by wing nuts Fixing material[...]

[...]Heating and cooling with wastewater as a regenerative energy source Buildings play an important role in the fight against the threat of climate change. Worldwide, real estate is one of the largest consumers of fossil fuels, which are used for heating and cooling, among other things. Rising living standards and the overall increase in population will cause consumption to rise further if we do not succeed in improving energy efficiency. In addition to the right choice of building materials and good thermal insulation, the most important thing is to choose the right system for heating and cooling. HUBER has solutions that allow to use the wastewater in the sewer station as a regenerative energy source. HUBER solutions for heating and cooling with wastewater Wastewater heat exchanger in combination with heat pump Particularly efficient solutions can be achieved with heat pumps that draw energy from the wastewater and not from the outside air. Since wastewater is significantly warmer in winter and significantly colder in summer than the outside air, the heat pump can be operated with a higher degree of efficiency. The core of the entire process is a HUBER Heat Exchanger RoWin , which extracts energy from the wastewater, combined with a heat pump, which raises the energy for heating to a higher temperature level and thus makes it usable for larger buildings. Wastewater heat pumps can not only be used for heating buildings and the water in large buildings, but are also suitable for cooling rooms during the warmer months of the year. The heat pump works in reverse, i.e. it extracts heat from the building and transfers it to the wastewater with the help of the HUBER Heat Exchanger RoWin. Large properties near large sewers or the sewage treatment plant A prerequisite for using wastewater as a regenerative energy source is a sufficient amount of wastewater. For this reason, property locations that are close to large sewers or sewage treatment plants are particularly advantageous. Suitable buildings are all properties that have a high heating and/or cooling demand, such as hotels, shopping centres, administrative buildings, schools, homes, housing estates, industrial buildings, hospitals, swimming pools. Heating and cooling with wastewater : HUBER has the right solutions for heating and cooling large buildings using wastewater energy from the sewage system or wastewater treatment plant.[...]

[...]Ingelheim, Germany HUBER Active Carbon Filter CONTIFLOW® GAK: The quaternary treatment stage Boehringer Ingelheim Pharma GmbH & Co.KG was founded by Albert Boehringer in Ingelheim on the Rhine in 1885. The company operates a central wastewater treatment plant on their research and development location in Biberach an der Riß (Baden-Württemberg). The treated wastewater is discharged directly to the receiving water course. As part of a research project investigating the reduction of trace substances and micropollutants, a partial flow of the wastewater generated daily is treated there. This partial flow comes from two lines operated in parallel. The wastewater from the first line flows into a HUBER Active Carbon Filter CONTIFLOW® GAC. In the CONTIFLOW® filter, the adsorptive elimination of the micropollutants on the inner surface of the active carbon takes place. The wastewater from the second line is pretreated with ozone before it is passed into a HUBER Active Carbon Filter CONTIFLOW® GAC, he design of which is identical with the one used for the wastewater from the first line. When in contact with ozone, the micropollutants are oxidized. The generated transformation products are usually readily biodegradable and well adsorbable. A dosing station for the most different trace substancesand micropollutants is installed in the inlet to both lines. Due to the targeted dosing of different substances the research project delivers interesting results for both municipal and industrial applications. Under this research project, the effects of upstream ozonisation on a HUBER Active Carbon Filter CONTIFLOW® GAC are examined over a period of 18 months. The expected research results include not only an increased efficiency for the elimination of micropollutants but also a longer life of the active carbon.[...]

[...]Braunschweig, Germany The "baby" solar dryer is back In 2012, HUBER SE manufactured a mobile solar dryer in a container for Expoval Sludge, a research project supported by the Federal Ministry of Education and Research (BMBF). The dryer was extensively tested in cooperation with the Institute for Sanitary Engineering of the Technical University of Braunschweig in Germany, in Poland and in Colombia. The results achieved with the dryer were summed up in a DWA work sheet on solar sludge drying. The baby solar dryer was recently taken out of the research project and overhauled. In autumn this year, it will be shipped to South America where it will be used for drying tests on several municipal and industrial sewage treatment plants. This should have a sales-promotional effect on the sales of HUBER solar dryers. On the trail of odours As part of the master's theses of two students from the Technical University Amberg-Weiden a laboratory cabinet dryer was modified and tested for exhaust air measurements. The aim of the students' theses is to enable predictions to be made on odour-carrying substances in the exhaust air from the solar dryer. For this purpose, the temperature range was altered from 30 to 70 °C and also the pH value and the return rate for the dry material were modified. Then, the effects on the ammoniac content in the exhaust air were measured. It turned out that the ammoniac content in the exhaust air is reduced if dry material is mixed into the dewatered sludge as it is the case with the HUBER Sludge Turner SOLSTICE®. The reduced ammoniac content leads to a significant reduction of ammoniac emissions. On the other hand, it appears that the ammoniac load in the dryer exhaust air increases as the temperate rises, as it is the case in warmer regions or in case of additional utilisation of exhaust air in the solar dryer (floor heating or hot air). The measurements on the large-scale sewage sludge drying plant at Bayreuth are to be used to compare the laboratory data with the real data gained from practical experience. The decision whether or not an exhaust air treatment is required for the solar dryer has a significant influence on the investment and operating costs of the solar sewage sludge drying plant.[...]

[...]Replacing the primary clarifier with a fine screen – HUBER CarbonWin® In the HUBER CarbonWin® process, the primary clarifier is replaced by a fine screen. This results in the following advantages: Only 1/10 of the space required compared to conventional primary clarifiers Minimised investment and operating costs Suitable to be integrated into existing plants The primary clarifier is the last stage of the mechanical pre-treatment of a wastewater treatment plant and works according to the anaerobic sludge stabilisation process. In the primary settling tank, undissolved organic and inorganic substances settle at low flow velocities and with sufficient retention time and thus build the primary sludge. This is then added to the digester – usually after mechanical thickening – together with the excess sludge. In the anaerobic process, the sludge is converted into digester gas, which can be used for energy generation. Sewage treatment plants that work according to the principle of aerobic sludge stabilisation usually do not have a primary clarifier. However, the advantage of the simpler process technology is offset by high energy consumption, because sludge stabilisation takes place simultaneously with biological wastewater treatment through a correspondingly long aeration period (high sludge age). Aerobic sludge stabilisation is more common in smaller wastewater treatment plants up to about 20,000, sometimes up to 50,000 population equivalents (p.e.). Driven by constantly rising energy costs and technical innovations in the field of sludge digestion and digester gas utilisation, anaerobic sludge treatment is gaining in importance also for smaller sewage treatment plants designed for fewer than 50,000 PE. For an economic and energy-optimised conversion from aerobic to anaerobic sludge stabilisation, the use of a primary clarifier is usually unavoidable. Carbon Removal The HUBER CarbonWin® Process The HUBER CarbonWin® system offers an interesting and economical possibility to do removal of carbon without a primary settlement tank when converting from aerobic to anaerobic sludge stabilisation. In order to achieve the required carbon removal from the biological treatment stage, HUBER uses the fine screening process with the HUBER Drum Screen LIQUID. The advantages are low investment costs and a 90% reduction in space requirements. The HUBER Drum Screen LIQUID can also be used to relieve an existing primary clarifier. In case of overload of the primary clarifier, a partial flow can be treated with the HUBER Drum Screen LIQUID.[...]

[...]Plants for sludge treatment (e.g. HUBER Screw Press Q-PRESS ® , HUBER Disc Thickener S-Disc) or for pre- and secondary treatment of industrial and municipal wastewater (e.g. HUBER Flotation Plant HDF) are usually purchased in Germany. This involves prior planning, authorisation, construction of infrastructure and buildings, as well as permanent responsibility for the acquired plant technology. In addition, the process from idea to implementation often takes several years. Industrial plant operators, in particular, increasingly wish and demand to rent rather than permanently purchase machinery and equipment. The reasons are: Short-term and rapid implementation, especially where the wastewater pollution load is temporarily or permanently higher due to increased production Tight deadlines set by the authorities to improve discharge values (including in the event of a threatened plant closure), also as a stopgap until a permanent installation is built Avoiding complex planning and preparation processes, as well as reduced investment in structures and buildings Avoiding major investments, especially in economically strained times, and utilisation of operating cost budgets … HUBER has recognised these requirements and will make machines and systems available for rent in the future. The technology can be rented temporarily and then returned, or taken over completely at a later date. In most cases, the machines are designed completely ready for connection and operation as containerised systems, as so-called skids or as individual machines that can be temporarily installed on site, e.g. in tents. A whole range of HUBER machines is available for a wide variety of applications: Sludge thickening and dewatering (disc thickeners, screw presses) Flotation plants up to approx. 50 m³/h, including chemical pre-treatment Screening systems in tanks (different separation capacities) Contact us, we will be happy to advise you and offer you the right solution for your wastewater and sludge issues.[...]

[...]Glasgow, Scotland[...]