Search

[...]The efficient flocculant mixer achieves a significant reduction of operating costs Conditioning of the sludge to be processed with polymeric flocculants is a precondition for the mechanical dewatering of sewage sludge. The focus is typically on the optimal flocculant dose as this is the factor that influences directly the dewatering results and flocculant consumption, and thus the largest portion of the operation costs. Turning the attention to sludge conditioning as the determining process step for dewatering, it becomes apparent however that also the mixing intensity and flocculant solution concentration have a significant impact on dewatering results and flocculant consumption. Dynamic inline mixers are a suitable solution to increase the mixing intensity compared to frequently used static mixers or slowly running stirrers in big-volume tanks. This compact type of mixer operates at a rotary speed of up to 3000 rpm directly in the sludge feed line of the dewatering unit. Advantages of dynamic mixers: The comparably high mixer speed achieves a turbulent and thus ideal admixture of the flocculant. All solid particles have contact with the flocculant and the flocks all have virtually the same size. The formation of very small flocks or big instable agglomerates is minimized with the result of an increased water loss of the flocks in the dewatering machine. Due to the faster loss of water, it is possible to increase the throughput of the dewatering unit or optimize the dewatering degree. With a specific energy input of up to 20 kWh/t DR , even highly viscous liquids can be mixed under turbulent conditions. The concentration of the flocculant solution can therefore be increased from typically 0.2% to 0.4% effective substance, i.e. the volume of dilution water for preparing the flocculant can be halved. This reduces the hydraulic load on the dewatering system, which in turn has a positive impact on the dewatering degree. If the flocculant is prepared with drinking water, also the current costs for the dilution water can be halved. Furthermore, a smaller size of the flocculant preparation plant is sufficient for the same maturation time. The smaller design makes the plant cheaper and the storage stability of the highly concentrated flocculant increases significantly. Practical experience The sewage treatment plant of the Hessian spa town Bad Orb has operated a screw press for digester sludge dewatering since 2016. The screw press is fed three times a day for 4-5 hours with a sludge volume of 5 to 6 m³/h. The dewatering properties of the digested sludge were increasingly influenced negatively by the processed grease separator material from restaurants and co-substrates from food industries. With a flocculant volume of 15 kg/t DR , the dewatering degree reached was frequently only 21% DR. Since the integration of the dynamic HUBER Inline Polymer Mixer IPM upstream of the screw press, the dewatering degree has increased by 3% and the specific flocculant demand has been reduced by approximately 15%. The dynamic mixer is operated with a rotary speed of 2200 rpm and has a power consumption of 2.2 kW. The effective substance in the flocculant solution is 0.3%. The new HUBER Inline Polymer Mixer has also considerably improved the operational reliability of the sludge press. The previous mixing unit became frequently clogged with contaminants contained in the external sludges. Now, such problems belong to the past.[...]

[...]Birmingham, Great Britain[...]

[...]Flotation Plants Effective and efficient treatment of industrial wastewater and process water allows recirculation and reuse Dissolved Air Flotation Plants Chemicals Dosing Efficient wastewater and process water treatment for industrial applications through flotation with micro bubbles Grease, oil, fat, floating and suspended solids, settling material, and dissolved components need to be separated to provide good and uniform water quality. In addition, clogging and excessive wear of pipelines and other associated equipment is prevented, which increases the operating reliability of the production plant. Where used process water is discharged as wastewater, pre-treatment is often required to prevent toxic or otherwise harmful substances from entering the sewer system and reduce disposal costs. Conventional gravity clarifiers are often incapable of achieving sufficient pre-treatment. Various types of flotation processes have been developed, whereof dissolved air flotation with pressure water recirculation has proven most effective. The HUBER Dissolved Air Flotation Plant provides a significantly improved flotation process with a special inlet structure that provides optimum control of the flow within the flotation tank. HUBER Dissolved Air Flotation Plants are successfully operating for a very wide variety of industrial and municipal applications.[...]

[...]Dissolved Air Flotation Plants Effective and efficient wastewater and process water treatment for industrial applications through flotation with micro bubbles HUBER Dissolved Air Flotation Plant HDF Dissolved Air Flotation Plants HUBER Dissolved Air Flotation Plant HDF S Dissolved Air Flotation Plants Extensive pre-treatment of used process water is reasonable and necessary for both economic and legal reasons Process water is needed in many production processes as a solvent, for production of material, or for cleaning purposes. Water is recirculated and reused for economical and environmental reasons. Grease, oil, fat, floating and suspended solids, settling material, and dissolved components need to be separated to provide good and uniform water quality. Recovery of valuable product from the water may be another additional objective. Proper pre-treatment ensures that the applicable discharge standards for problematic substances (e.g. heavy metals, HC, AOX, etc.) are met and that the effluent discharge fee is minimized. Conventional gravity clarifier sare often incapable to achieve sufficient pre-treatment for the reliable compliance with effluent standards or for extensive reduction of the contaminant load upstream of subsequent treatment stages. Various types of flotation processes have been developed for such separation requirements, whereof dissolved air flotation with pressure water recirculation has proven most effective. The use of a multistage rotary pump for recycle water saturation with air eliminates the need for costly pressure tanks with high maintenance requirements.[...]

[...]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.[...]

[...]Be part of engineering solutions that make a difference Are you starting your engineering career, or looking to move from a hands-on electrical role into design , or are you an experienced Design Engineer ready for a new challenge in the Wastewater and Environmental engineering sector ? We’re looking for an Electrical Design Engineer to join our team at our Head Office in the South West . You don’t need to have followed a traditional electrical design career path. What matters to us is your electrical knowledge, problem-solving ability, attention to detail and enthusiasm to learn and take ownership . Whether you’re a graduate looking to build your experience, an electrician or electrical engineer ready to take the next step into design, or an experienced electrical designer looking to apply your skills in a new industry, we’d like to hear from you. HUBER Technology is a global environmental engineering business delivering innovative wastewater treatment solutions around the world, helping the water industry protect one of our most important resources: water . You’ll join a small, collaborative electrical engineering team, designing bespoke and standard control panels, electrical systems and installation schematics for a wide range of projects. This is a hands-on engineering role where you’ll take ownership of your designs from concept through to manufacture, testing and commissioning , while developing specialist knowledge of our products and systems. As an Investors in People Gold organisation, we’re committed to developing our people in an environment where they can succeed whilst creating rewarding long-term careers. If you’re curious, practical and enjoy solving engineering problems, we’d love to hear from you. What you’ll be doing Creating electrical schematics, 2D layouts and wiring diagrams for control panels Designing electrical installation systems using AutoCAD Electrical, EPLAN or similar Developing practical, cost-effective solutions to meet customer and project requirements Working with mechanical, engineering, manufacturing and project teams Supporting panel build, testing, fault finding and commissioning Participating in design reviews and managing design revisions Supporting commissioning engineers during FAT and SAT activities Developing your knowledge of our equipment and wastewater treatment systems What we’re looking for We’re interested in people with a range of backgrounds. You’ll ideally have: A qualification in Electrical Engineering or a related discipline or relevant practical electrical experience An interest in electrical design and engineering Experience with electrical CAD software is desirable, but training can be provided for the right candidate . Experience with low-voltage electrical systems or control panels would be advantageous A practical, methodical approach and strong attention to detail Good communication and collaboration skills An enthusiasm for learning and developing your technical expertise Experience with ISO 13849 or other machine and functional safety standards would be advantageous. Why join us? This is an opportunity to join an organisation where engineering and the people behind it matter! Technical development and career progression Opportunity to become a technical expert in HUBER Technology’s products and systems Support from experienced engineers in a collaborative team Exposure to projects from design through to manufacture, testing and commissioning Genuine ownership and responsibility Flexible working opportunities following a structured training period Competitive salary and benefits The opportunity to work on technology that contributes to protecting and improving the environment Interested? Whether you’re taking your first step into electrical design , looking to move from a practical electrical role into engineering design, or bringing established design experience into a new industry, we’d love to hear from you. Please e-mail hr@huber.co.uk with your CV and a brief covering letter/ e-mail to outline your motivation for our role. Come and help us engineer solutions that make a difference.[...]

[...]Elimination of Trace Substances Solutions for the elimination of trace substances and micro pollutants from wastewater Adsorption process with powdered activated carbon (PAC) Elimination and reduction of micropollutants from wastewater: Adsorptively removal of trace substances with powdered activated carbon, which is added to the wastewater and then separated again by means of a polishing filter (before the treated wastewater is added to the receiving water.) Adsorption process with granulated activated carbon (GAC) Elimination and reduction of micropollutants from wastewater: The removal of trace substances is carried out adsorptively with granulated activated carbon, whereby ozone can be additionally used. It has been proven that wastewater treatment plant effluents are significant input pathways for anthropogenic trace substances (especially pharmaceutical residues) into our water bodies. In the aquatic environment, these micropollutants have negative impacts and in conventional wastewater treatment plants, these substances are only insufficiently degraded. In order to achieve a more extensive elimination of micropollutants in municipal wastewater treatment, special processes of advanced wastewater treatment are necessary. Elimination of micropollutants is also referred to as the fourth purification stage or quaternary treatment. There are different processes for the elimination of micropollutants, for each of which HUBER has different machinery and plant technology in its product range. Adsorption process with powdered activated carbon : In the process with powdered activated carbon (PAC), the trace substances are adsorbed on powdered activated carbon. Adsorption process with granulated activated carbon : In the process with granulated activated carbon, the GAC process, the micropollutants are adsorbed on granulated activated carbon. Note: When considering the elimination of micropollutants, it is highly recommended to keep the synergy effects of solids reduction and phosphorus elimination in mind, as these can skilfully be exploited, taking into account all individual boundary conditions. FAQ Frequently Askes Questions What are anthropogenic micropollutants? Anthropogenic micropollutants are man-made chemicals that enter water bodies via wastewater and have negative effects even in low concentrations. Typical trace substances of this kind are, for example, medicines, cosmetics, cleaning agents or plasticisers in plastics. Industrial chemicals, corrosion protection agents, pesticides and biocides also belong to this category of substances. Why should trace substances be removed from wastewater? Although trace substances are only present in wastewater in very low concentrations, they can still have an environmentally harmful effect. Not only active substances of the contraceptive pill but also many other substances such as bisphenol A can negatively influence the hormone balance of aquatic organisms. Other trace substances can damage the gills and internal organs of fish. In addition, trace substances can accumulate in aquatic animals and ultimately reach humans via the food chain. Why not prevent trace substances from entering wastewater in the first place? In principle, medicines and chemicals should not be disposed of down the toilet. But even if everyone followed this rule, these substances would still end up in the sewage system and thus in the wastewater treatment plants. All medicines that we take leave the body with our excretions and are therefore automatically in the sewage. Many objects that are exposed to rain, weathering or mechanical wear can release harmful substances, which are then flushed into the sewage system with the rainwater. Since the input of trace substances cannot be prevented in practice, the elimination of trace substances at the wastewater treatment plant is an effective way to remove the unwanted substances.[...]

[...]Vohburg and Kahla, Germany The topic of replacing a conventional primary clarifier with a mechanical screen has already been the subject of numerous publications. HUBER SE was the first company in Germany to take up this new challenge several years ago. The performance of the plants already installed, their reliable operation and the resulting energy savings in the operation of the wastewater treatment plants are already a success story, as the Vohburg and Kahla projects impressively demonstrate. Vohburg wastewater treatment plant: complete modernisation for energy performance optimisation Vohburg on the Danube is a town in the Upper Bavarian district of Pfaffenhofen an der Ilm. The town lies on the northern border of the district, around 15 kilometres down the Danube from Ingolstadt. The old town centre is framed by the rivers Danube, Little Danube and Paar. The Ilm also flows along the southern edge of the town. Vohburg could therefore be called a ‘four-river town’ The municipality of Vohburg and its neighbouring areas are growing steadily, but unfortunately the capacity of the wastewater treatment plant is not. As a result, it has become necessary to expand the capacity of the Vohburg wastewater treatment plant from 9,000 PE to 14,000 PE. The scope of the refurbishment includes a fundamental conversion of the process management from aerobic to anaerobic sludge stabilisation. One advantage of anaerobic process management is that up to 30% aeration energy can be saved. The costs for the aeration energy of an aerobic sludge stabilised wastewater treatment plant are one of the largest items in a municipality's budget. For wastewater treatment plants, this means that approx. 60% of the total costs are incurred by the aeration energy of the biological treatment stage. An additional advantage of converting to anaerobic digestion is that 50% of the electricity will be produced by the sewage treatment plant itself in future. Many factors are important in order to be able to make this process conversion project a reality. Firstly, the space required for a conventional primary clarifier must be available and secondly, there must be sufficient space to accommodate a digester and a CHP unit. If the wastewater treatment plant does not yet have a sludge dewatering system, a mechanical dewatering system must also be planned. In the Vohburg project, the technical effort required to build a primary clarifier was not economically feasible. The planning engineering company BBI Ingenieure GmbH and the city of Vohburg therefore analysed the possibility of a mechanical alternative to the primary clarifier. However, the use of the HUBER Drum Screen LIQUID to remove suspended solids from the wastewater flow upstream of the biological stage should only be approved if prior tests with a HUBER demonstration plant show that the HUBER Drum Screen LIQUID achieves the required reduction performance. HUBER SE therefore provided a test plant for 3-4 weeks. This trial was supervised by the Nuremberg University of Applied Sciences and a HUBER team. The Drum Screen LIQUID had to compare itself with a competitor's belt screen system on this wastewater treatment plant. As the results showed, the HUBER Drum Screen LIQUID was able to demonstrate clear advantages due to its significantly better reduction performance in terms of filterable solids and COD as well as the operational reliability of the system. Despite the very low concentration of filterable solids, the HUBER solution showed a reduction performance of 70%. And in spite of the sometimes high external water input and a ratio of 50% particulate / 50% dissolved COD, a separation performance of 29% total COD was still achieved. An excellent result under these conditions. The maximum inflow to the Vohburg wastewater treatment plant is 360 m³/h. The HUBER Drum Screen LIQUID installed there is also designed for 360 m³/h and contributes to relieving the biological stage. In concrete terms, this means a reduction in aeration costs of up to 30%. HUBER Disc Thickeners S-DISC are installed on the wastewater treatment plant to process the sludge from the Drum Screen LIQUID. A digester was installed to utilise the thickened sludge for energy recovery. The digested sludge is then dewatered by a HUBER Screw Press Q-PRESS®. Furthermore, it was necessary to integrate a CHP unit which converts the gas yield from the digester into electricity. As already mentioned, the self-generated electricity can be used for own consumption or fed into the public power grid. Commissioning took place at the end of 2019. Reduction of operating costs by 35,000 euros per year At the time of planning, a reduction in operating costs of 35,000 euros/year was expected for this wastewater treatment plant with an expansion stage of 14,000 PE. As the most important component of the overall concept, the HUBER Drum Screen LIQUID has made a significant contribution to the successful energy-efficient refurbishment of the Vohburg wastewater treatment plant. This project impressively demonstrates how the process conversion from aerobic to anaerobic sludge stabilisation can conserve valuable resources, generate financial added value for the wastewater treatment plant operator and at the same time protect the environment. Measures: HUBER Drum Screen LIQUID HUBER Disc Thickener S-DISC Digester incl. CHP HUBER Screw Press Q-PRESS® Benefits: 24 % savings in aeration energy after reaching the expansion stage 50% self-supply of electricity for the wastewater treatment plant (approx. 140,000 kWh/a) 40 % reduction in disposal costs Utilisation of waste heat from CHP for building heating Savings due to reduced cost for purchased electricity and for sludge disposal amount to approx. 80,000 €/year New paths – new opportunities: the energy upgrade of the Kahla wastewater treatment plant Kahla is a small town in the middle part of the Saale river valley, south of Jena. Kahla is the seat of the Südliches Saaletal administrative community for the southern Saale valley, but is not a member of the community itself. Kahla is famous for its porcelain, which has been produced there for over 150 years. The Kahla wastewater treatment plant benefited from a European funding programme. In order to improve the energy efficiency of a wastewater treatment plant, process optimisation measures are often carried out for wastewater treatment plants of 8,000-50,000 PE. For small to medium-sized wastewater treatment plants in particular, this means converting the concept of the aerobic sludge-stabilised wastewater treatment plant originally planned for plant sizes to the new concept of the anaerobic sludge-stabilised wastewater treatment plant. From a size of 50,000 PE, wastewater treatment plants are generally only operated with anaerobic sludge stabilisation anyway. In the Kahla project with a capacity of 15,000 PE, the HUBER Drum Screen LIQUID was integrated into the hydraulic connection line between the grit chamber and aeration via a branch line. For this purpose, an empty basin was used to accommodate the machine. Therefore, no new structure had to be built. Another decisive factor was the higher degree of separation compared to a primary clarifier After all, the wastewater in Kahla is not the conventional type. There is a predominant proportion of soluble COD, which comes from food industry operations. This shifts the ratio between soluble COD and particulate COD in favour of soluble COD. As the design of a primary clarifier is largely determined by the hydraulic load, an unnecessarily large structure must be built to ensure the desired degree of separation of particulate COD (only this can be separated by mechanical-physical processes). This ratio shift plays a subordinate role in the design of an ultra-fine screening system. The local food industry had significantly increased its production capacity, so that an aeration tank enlargement would have been necessary. However, due to the advantages of this technology described above, the necessary aeration tank enlargement could be avoided by installing an ultra-fine screen. This drum screen was planned in such a way that no additional adjustments to the structure were necessary. Only one pipeline into and one pipeline out of the HUBER Drum Screen LIQUID tank was required. An emergency bypass was already in place. HUBER Disc Thickeners S-DISC are installed to process the sludge from the HUBER Drum Screen LIQUID. A 2-phase digester was installed to process the thickened sludge for energy recovery. Furthermore, it was necessary to integrate a gas turbine CHP unit, which converts the gas yield from the digester into electricity. Commissioning took place at the end of 2019. Thanks to the excellent cooperation with the engineering company Arequa, it was possible to develop this extraordinary, innovative and sustainable concept. The citizens will be grateful if these measures for the energy efficiency optimisation of the wastewater treatment plant enable the costs for wastewater charges to be kept stable in the medium term despite rising electricity and sludge disposal prices. Measures: HUBER Drum Screen LIQUID HUBER Disc Thickener S-DISC Digester incl. CHP Benefits: Consistent aeration energy despite increased loads (COD / filterable solids) 50% self-supply of electricity for the wastewater treatment plant (approx. 146,000 kWh/a) 20 – 30% less sludge for dewatering (reduction in disposal costs) Utilisation of waste heat from CHP to heat the digester.[...]

[...]Bavaria's Minister of Finance and Home Affairs Albert Füracker visited the Museum of Bavarian History in Regensburg today, Friday, and inspected a plant for recovering energy from wastewater. The heart of the plant is the HUBER ThermWin System, consisting of a HUBER Pumping Stations Screen ROTAMAT® RoK4 and a HUBER Heat Exchanger RoWin. Besides Füracker, Gertrud Maltz-Schwarzfischer (Mayor of the City of Regensburg), Dr. Richard Loibl (Director of the House of Bavarian History) and Georg Huber (CEO HUBER SE) were also on site to see the plant. Tour of the plant with Minister of State Albert Füracker, Gertrud Maltz-Schwarzfischer (Mayor of Regensburg), Dr. Richard Loibl (Director of the House of Bavarian History) and Georg Huber (CEO HUBER SE) Minister of State Albert Füracker: ”HUBER ThermWin uses wastewater for heating and cooling and is a future-oriented showcase model in times of energy crisis and climate change.” Füracker: ”forward-looking showcase model in times of energy crisis and climate change”. Füracker was impressed by the innovative technology and emphasised the ever-increasing importance of sustainable solutions such as energy from wastewater: ”In Bavaria, tradition and innovation go hand in hand. This is impressively demonstrated in the House of Bavarian History. The HUBER SE ThermWin system installed in the state-of-the-art building does justice to this idea of progress: it uses wastewater for heating and cooling and is a future-oriented showcase model in times of energy crisis and climate change. It is impressive to see that what once seemed like a dream of the future is now technically feasible. I hope for many others to follow suit and be inspired by this example,” said Albert Füracker, Minister of Finance and Home Affairs, during the tour of the plant. HUBER ThermWin for heating and cooling The main component of the ThermWin process is the HUBER Heat Exchanger RoWin, which has been specially developed for use with wastewater and, in combination with a heat pump, allows heating and cooling of buildings. Depending on the season, the operating modes “heating” and “cooling” are used in the House of Bavarian History in Regensburg. In the “heating” operating mode, the heat pumps extract energy from the wastewater in the sewer with the help of the two size 8 wastewater heat exchangers. In the operating mode ”cooling”, the thermal energy of the building is supplied to the wastewater. The innovative feature of the HUBER Heat Exchanger RoWin is its fully automatic self-cleaning. This feature makes it possible to ensure a permanently high and constant heat transfer performance even though the medium is wastewater. Toronto: the world's largest project for recovering energy from wastewater In addition to projects in Germany, the ThermWin process is also increasingly in demand abroad. Currently, the largest “energy from wastewater” project is being executed in Toronto/Canada. HUBER supplied 16 RoWin wastewater heat exchangers (size 8). In total, the machine technology for pre-screening and energy recovery from up to 550 l/s raw wastewater was supplied. This solution ensures the energy supply of the Toronto Western Hospital with up to 17.5 MW after the heat pumps. This is the largest project of its kind in the world. Hospitals in Munich, Hamburg and Zurich also use HUBER ThermWin Another project example from Bavaria is the integration of the HUBER Heat Exchanger RoWin into the university hospital Klinikum Rechts der Isar in Munich. Here, the wastewater from the central sterile supply department (CSSD) is relieved of part of its energy in a small-scale cycle. This energy is fed into the incoming drinking water, raising the temperature level from 10 °C to 30 to 40 °C. Previously, the process water was heated exclusively with electricity. Commissioning took place in 2014, and these solutions were subsequently also installed in the University Hospitals of Zurich and Hamburg-Eppendorf.[...]

[...]Witzenhausen, Germany A sewage treatment plant in Witzenhausen, a retirement home in Switzerland, and an office building in France – What do they have in common? The answer is: They all use eco-friendly, regenerative energy from wastewater during the next heating period. This demonstrates the wide range of applications the HUBER RoWin Heat Exchanger offers. In the shadow of the large order HUBER received from the Ministry of the Interior in Stuttgart it have been the smaller orders which show the wide field of application of the HUBER ThermWin® System. On WWTP Witzenhausen for example the energy contained within the wastewater is used to heat the digester, the chamber filter press and the operator building. Previously, especially during winter, the block heat and power plant (operated with sewage gas) could not supply enough energy. Mineral oil had to be used additionally. But as huge amounts of (warm) wastewater are present on sewage treatment plants anyway, the wastewater is an ideal alternative energy source. HUBER developed a conclusive concept for the heat supply on site, which includes a HUBER RoWin Heat Exchanger and heat pump. This concept is certainly suitable to be applied on many other wastewater treatment plants as well. More than 500 km south of Witzenhausen lies Münchenstein, a small town of 12,000 residents near Basel in Switzerland. In 2000, Münchenstein was officially put on the list of ‘energy cities’. The people living there are proud that they can contribute to achieving the climate goals and preserving our living environment. But as the list status is verified every three years, Münchenstein must continuously make efforts to stay on the list. It is therefore no surprise that the local retirement and nursing home Hofmatt decided to use regenerative energy sources when they renovated and expanded their care facility. For the first time, the HUBER RoWin Heat Exchanger is fed exclusively with the wastewater from their buildings. Short ways within the buildings, combined with a certain buffer effect of the heat exchanger, ensure that the heat level at the connected heat pump is high. The heat pump operates with a high performance and therefore provides an economical and efficient solution of water heating and hot water supply for the buildings. Such innovative ‘recycling‘ of heat energy saves fossil fuels so that Münchenstein can rightly hope for even more awards. Another 700 km west of Münchenstein lies Tours in France, between Orléans and the Atlantic coast. In autumn 2012, the first HUBER ThermWin® unit in France will be installed in Tours with its 140,000 residents. An office building of about 2,100 m² area is being erected in the city’s district Saint Pierre des Corps as space to be leased to companies and authorities. The local employment office will be the first to move in. The HUBER ThermWin® system will be used for heating and cooling, like at Winterthur in Switzerland, a previous HUBER project. The French investor made his decision in favour of the HUBER solution after they had visited the HUBER project in Straubing. The operators in Straubing had told them about the high operational reliability of the system and the resulting constant heat transfer. Applications where heat pumps save energy on sewage treatment plants, support heating plants in housing developments and public facilities, or climatise office buildings, are nothing special. It is however unusual that municipal wastewater is used as an energy source in such applications. Wastewater is an ideal energy source with a high heat capacity and high temperatures during the heating period. Its energy value is outstanding, and the HUBER RoWin Heat Exchanger impressively eliminates the disadvantage that it is contaminated water. Germany and Switzerland were the first to make use of energy from wastewater, now also France is jumping onto the ‘energy-from-wastewater train’. Packed with solutions for the most different applications and profitable cost-saving solutions, it will rapidly gather pace very soon and certainly find many other stations in Europe.[...]