[...]Barueri, Brazil A comprehensive two-week intensive training course was held at the HUBER Service Academy in preparation for the major Barueri project in Brazil, one of the largest wastewater treatment plant projects in South America. Delivery of the machinery for this project has already begun, comprising a total of 85 units for mechanical wastewater pre-treatment and grit treatment. This includes four different types of screens, for this project and a sister project, namely the HUBER Course Screen TrashMax®, the HUBER Grab Screen TrashLift, the HUBER Multi-Rake Bar Screen RakeMax®, and the HUBER Belt Screen EscaMax®. The portfolio is complemented by HUBER Launder Channel HLC units, the downstream HUBER Screenings Wash Press WAP® L, HUBER Grit Trap GritWolf® and the HUBER Coanda Grit Washer RoSF4. Comprehensive training programme The training course combined detailed theoretical sessions with practical training modules. It covered operational principles, control logic, installation guidelines and systematic troubleshooting procedures. The practical sessions focused on typical inspection, adjustment and maintenance tasks. In addition, two site visits provided the opportunity to accompany HUBER service specialists in maintaining a HUBER Multi-Rake Bar Screen RakeMax® at nearby wastewater treatment plants, to inspect wear parts and to understand the operational processes of a HUBER Grab Screen TrashLift. In addition to the machine-specific content, further training was provided on measurement technology and sensor systems, on control processes for complex interlinked systems, and on the use of surveying and levelling equipment. Another key focus was on the detection and prevention of corrosion. The international training group comprised four participants from Brazil, from both the customer and HUBER do Brasil, as well as service colleagues from Canada, Poland, the Czech Republic and Latvia. In addition to the technical exchange, there was a supporting programme featuring group dinners, a visit to an FC Bayern home match and the 'Rossmarkt' winter folk festival in Berching, offering insights into Bavarian culture. Building expertise as a foundation for the future Six trainers from various HUBER departments were on hand to ensure a high standard of training. A simultaneous interpreter was also available for the Brazilian participants. Having now completed the two-week intensive phase, our Brazilian colleagues are fully prepared for their roles in the major Barueri project. We would like to thank our client for the great trust they have placed in us with this significant large-scale project. Such comprehensive training ensures that subsequent plant operation is as well-prepared as possible and can be carried out to the highest standard in the long term.[...]
[...]Arosa, Swiss A CO2-neutral hotel with HUBER technology? Yes, Valsana The Valsana Hotel & Apartment Arosa sets new standards for its sustainable energy concept and is heated 100% without fossil fuels. The lifestyle boutique hotel in the popular holiday destination of Arosa in the Swiss Alps has already proven in 2017 that sustainability can be successfully accomplished in harmony with nature and customer needs with an integrated approach in the upscale hotel industry. This pioneering achievement by the Tschuggen Hotel Group as owner of the Valsana was implemented long before the climate debate became omnipresent. The balance after two years of operation is extremely positive and expectations have been clearly exceeded. The entire heating output of the hotel complex with 40 rooms and a total of 20 apartments is obtained both from the hotel's own waste heat from various sources and from geothermal probes. The core element of the energy concept is an 850 m³ ice storage tank (latent storage unit), which in combination with the heat pumps ensures the heat balance of the building complex. If the heat pumps draw large amounts of energy, the water in the storage tank can be cooled down to such an extent that it freezes. If more waste heat is available than energy is extracted from the storage tank, the surplus is fed into the water basin, thus thawing the ice again. The water can then heat up to 15°C. The HUBER Heat Exchanger RoWin plays a key role in heat recovery. It recovers 50% of the waste heat from wastewater, which has a temperature of about 23°C, from the huge amount of water required for the kitchen and especially the wellness area. The wastewater is discharged into the sewerage system with a temperature of approx. 10°C. With over 15%, the contribution of the wastewater heat to the total heat requirement of the hotel complex is very significant and contributes to an important CO 2 reduction. The entire installation for waste heat recovery with the HUBER Heat Exchanger RoWin is located in the technical equipment room and is an encapsulated, odourless installation. The plant is accessible at any time and operation is fully automatic. Before the wastewater is fed to the RoWin heat exchanger, it is pre-screened with a 6 mm perforated screen (modified HUBER Wash Press WAP® 4). In the Valsana project, only the hotel’s own wastewater is used, the public sewerage system is not used for heating purposes. This example clearly shows that even with low wastewater flows of 1 litre per second on average, the HUBER Heat Exchanger RoWin can be applied successfully. For optimum heat yield, batch operation was implemented in the project. The HUBER Heat Exchanger RoWin is suitable for new construction projects and for the rehabilitation of existing heat generation plants. In combination with alternative energy systems, this technology can be used to tap a significant, previously unused energy source.[...]
[...]Quarzbichl, Germany Quarzbichl, a material extraction and marketing company, provides municipal waste management services for the districts of Bad Tölz and Wolfratshausen. It also processes compost into high-quality soil on site. The surface wastewater produced is collected in an intermediate storage tank and treated for direct discharge into the Loisach River. The HUBER Dissolved Air Flotation Plant HDF process was chosen because the wastewater is almost exclusively contaminated with particles, the process effectively separates suspended solids from clear water without blockages, and the resulting residues are concentrated accordingly. Pilot project as proof of feasibility Every new process involves uncertainties and unknown effects by its very nature. To familiarise the future operator of the plant with the process and test its practical suitability, a pilot plant was installed. The plant was temporarily installed at the customer's site to demonstrate its effectiveness. This pilot project enables a realistic estimate of future operating costs to be made. Specific cost factors, such as chemicals, are determined, enabling an economic assessment of the plant technology. The plant's reliability under changing wastewater compositions is also thoroughly tested. Independent testing laboratories provide reliable data for the subsequent operation of the plant, and a qualified evaluation is carried out afterwards. Transfer of results to permanent installation Valuable insights counteract surprises: Based on these insights and results, the dimensions of the subsequent large-scale plant can be determined. The challenges encountered during the pilot operation are incorporated into the design of the large-scale plant. In this project, an inline screen was installed as a so-called 'police filter’ as the first stage of treatment in the large-scale system to reliably retain coarse materials. The subsequent chemical stage was designed as a tube flocculator based on the findings of the pilot test. It is important to note that drinking water-certified products must be used for chemical conditioning. This ensures that the flotate sludge produced later can be fed into natural composting within the company. Wastewater treatment for the Isar tributary In the flotation cell, solids are transported to the water surface by extremely fine gas bubbles. The remaining water is completely free of particles and can therefore be discharged directly into the receiving watercourse, the Loisach, a tributary of the Isar. Appropriate measurement technology is installed to monitor the water quality in the effluent and ensure that it remains consistently high.[...]
[...]On Thursday, 5 October, the wastewater syndicate SIDEST (Syndicat Intercommunal de Dépollution des eaux résiduaires de l'Est) together with HUBER and ProMinent invited to the final symposium "Removal of Micropollutants and Water Reuse". More than 100 participants from Luxembourg, Rhineland-Palatinate, North Rhine-Westphalia and Baden-Württemberg were presented with the results of the 18-month trial operation at the Grevenmacher wastewater treatment plant. After the very informative and varied lecture blocks in the morning, the participating planners, operators and decision-makers were able to see the demonstration plant for themselves in the afternoon. The plant installed at the Grevenmacher WWTP consists of a HUBER Pile Cloth Media Filter RotaFilt® , ozonation and activated carbon adsorption . Since March 2022, it has been convincing with stable plant operation and very good elimination of micropollutants. The treated wastewater (240 m³/d) is reused as process water at the treatment plant all year round, and during the dry summer months even in viticulture and on urban green spaces. Further information on advanced wastewater treatment can be found here at our website .[...]
[...]Steve Morris, Managing Director of wastewater treatment specialist HUBER Technology UK, takes a look at some of the challenges the water sector faces in achieving Net Zero Carbon 2030 – and how the supply chain can help. With Elaine Coles from Waterbriefing. In 2019 the UK water companies set themselves a tough challenge as part of their Public Interest Commitment when the industry became the first sector in the UK to commit to net zero carbon emissions by 2030. Since that time the water companies have been setting out their individual strategies to achieve their net zero targets – Northumbrian Water have set themselves the accelerated target of reaching net zero by 2027. So what does this mean for the water sector supply chain in practice? Water UK rightly says that “net zero will be a huge team effort” and that the Routemap will also enable those involved in the sector – including the water companies, regulators and the wider supply chain to understand the key opportunities and challenges in preparing the sector to become net zero by 2030. The water companies know that they can’t do this alone – and collaboration with the supply chain has a key role to play. From a supplier point of view, we’re already seeing a real drive and explicit requirements in terms of procurement processes that we need to provide clear evidence to demonstrate what we are doing - both in terms of our own carbon emissions and how our technologies and services can help the utilities achieve their net zero ambitions. The focus is on two key areas in particular: assurance that carbon reduction is a part of our own production processes and operational activities for the goods and services we provide demonstrating that these goods and services can in turn deliver significant reductions in energy use and associated carbon emission reductions – both for the water companies’ operational activities and capital investment schemes. Like a growing number of suppliers, for some time now at HUBER Technology we have been systematically developing our own carbon strategy and taking active steps to ensure we can clearly demonstrate our green credentials to our customers. To take just a few examples: Our parent company HUBER SE, which is headquartered in Germany started buying green electricity in 2014 for its manufacturing processes sourcing 100% renewable energy from small and large hydropower plants in Austria. Significant investment by HUBER SE in state of the art production plant with the aim of reducing waste and improving its own operational efficiency. IE4 energy efficient motors are now fitted as standard on new machines. Using stainless steel, rather than galvanised steel, to manufacture equipment – providing significant benefits to customers in terms of longevity, whole life costs, reduced maintenance requirements and downtime – all of which translate directly into associated carbon reductions. Here in the UK, we continuously monitor our carbon footprint to find ways to reduce its impact on the environment. Our carbon footprint is calculated and verified in accordance with ISO 14064, the International Standard for Greenhouse Gas Emissions, Inventories and Verification. We’re also looking at our fleet and transport requirement and making ever-growing use of electric vehicles. However, the area where we can make a real difference and make a meaningful contribution to helping the water companies achieve significant reductions is first and foremost helping them to minimise operational carbon emissions. Technology is already available to deliver significant reduced carbon wastewater treatment processes HUBER Technology has the potential to make a major contribution to reducing energy use and cutting associated carbon emissions in their operational activities – thereby also delivering significant cost savings in the process. The WATER UK Routemap clearly states that activities the UK water companies will need to undertake include: “identifying feasible options to reduce process emissions, initially through operational adjustments to existing processes and then through gradual deployment of alternative treatment technologies." It also flags up “low regrets actions” that the sector can take to start implementing immediately. These include: Maximising energy efficiency potential in water and wastewater to include accelerating deployment of interventions already adopted by individual water companies but scaling them up at sector level. Increasing monitoring and modelling of process emissions to inform operational adjustments to reduce these where possible, including optimisation of existing process operations to minimise emissions from secondary wastewater treatment processes. the technologies themselves how they are installed and used the aftercare, support and maintenance services which underpin them The Routemap also points out that the sector will need significant support from its supply chain in understanding suitable operational adjustments while maintaining process performance and resilience to meet this challenge. From a supplier point of view, I’m keen to emphasise that existing technologies and services are already available which offer proven solutions which can be immediately implemented and start to deliver demonstrable results within months – both in terms of payback time, reduced energy use and cuts in carbon emissions. There will of course be trials of other solutions and as yet unproven technologies – but the outcomes may take longer to come to fruition before they can be implemented and rolled out at scale. In the meantime however, there are immediate steps water companies can take which will make a real difference. To take one specific example from our own company, our Q-PRESS® sludge dewatering technology is already in use in a number of wastewater treatment and industrial sites in the UK – and is undoubtedly a low regret option. A successful trial of the Q-PRESS® to replace existing energy-intensive centrifuges at South West Water’s Plymouth wastewater treatment works demonstrated significant cost and energy savings - the Q-PRESS® can typically deliver: 40% lower chemical consumption 90% power savings 50% saving on annual operating costs Following the trial, we were selected to supply permanent HUBER Q-PRESS® sludge dewaterers for both the site at Plymouth Central and the water company’s Maer Lane WWTW. The figures, which show Q-PRESS® power consumption of around 11 kw when compared with centrifuge technology of 140kw speak for themselves – an order of magnitude in terms of cost, energy use & carbon reductions. In my view, the fact that South West Water were prepared to move away from conventional thinking and select a different technology represents an important lesson for the net zero journey. At a broader level, the Routemap also flags up the potential of utilising waste heat from the sewerage network to help the heating and cooling demand of residential and commercial buildings. Again, HUBER already has proven technology which is in widespread use at sites in Europe and the US. The HUBER RoWin Heat Exchangers are a ready to go technology for recovering low grade heat which can then be put through a heat pump for either heating or cooling purposes. In the context of climate change, cooling is as big a requirement as heating. However, while the effective use of the technology can be demonstrated, its uptake in the UK is still low. In my view, one reason for the slow adoption of the technology for low grade heat recovery may be due to the specific constraints of dealing with the multiple stakeholders involved in these schemes. Quite apart from the water companies’ own activities, it might be worth considering the potential regulatory and structural barriers which may be presenting obstacles to meeting these challenges. Other services which can play their part in reducing carbon emissions include preventative maintenance and what we call Smart Servicing of existing assets –i.e. the use of data for asset condition monitoring, increased operational efficiency, reduced power consumption etc. We also have the HUBER CarbonWin process, which uses the HUBER Drum Screen Liquid and the HUBER S-DISC sludge thickener, as an alternative to conventional Primary Settlement, to improve process efficiency, energy balance and reduce opex. While these may be indirect methods ,they can still nevertheless contribute to carbon emission reductions, and are easy to implement potential quick wins. Other areas where regulatory hurdles could be removed include co-digestion of sewage with other organic wastes – while these are referred to in the Routemap, to date this has still not been rolled-out. Again, we have existing technology solutions, already operating on commercial waste sites, which stand ready to optimise the process and performance of AD plants, including digestate screening and grit removal . Measuring carbon emissions is a source of ongoing concern for the sector Among a number of key issues related to achieving net zero by 2030, must surely be the question of how the companies will measure their carbon emissions and reductions. According to the Water UK Routemap, there is still uncertainty around the scale of process emissions from the sector and two issues that the sector is looking to resolve. Firstly, an update to the Carbon Accounting Workbook methodology used by all the water companies. The impact of this potential change is estimated to increase baseline process emissions by 31% and the residual level of process emissions in 2029-30 by ~25%. In addition, there is ongoing uncertainty around the true level of emissions arising from wastewater treatment processes in the UK. The concern must be that the water companies will face an ongoing challenge in making this work unless there is some real uniformity of measurement and an agreed consensus in taking this forward. The water companies have faced a similar challenge with the advent of Totex. While in theory measuring Totex should be a straightforward process, in practice that has never really been the case– to date there is still no real consistency in terms of how the water companies measure their Totex costs. In my view, establishing how carbon emissions are measured to ensure a level playing field will be of considerable benefit to both the water companies and the supply chain who stand ready to help with practical measures and solutions which will make a real difference. It is a truism to say that it if you don’t measure it you can’t measure it – but accurately measuring carbon emissions and reductions requires a generally agreed mechanism and approach to establish a real level playing field. Without this there will be a range of varying parameters which will inevitably not produce a clear and accurate assessment of the water sector’s carbon landscape. And this will not just be a challenge for the water companies – it also has implications for how comparisons can be made at a regulatory level to ensure the sector is operating on a level footing. Without this the sector risks generating huge amounts of information and data – but with a question mark hanging over how meaningful will it be. With investment and operational decisions increasingly set to be viewed through the lens of net zero carbon, ensuring accurate data is available which can then be translated into actionable intelligence will be key to achieving Net Zero by 2030. Given that there is no single and rapid silver bullet fix, the ability to assess the carbon impact of a range of measures all contributes to working steadily and consistently towards that goal. While they may of themselves be relatively small wins, taken together the whole is likely to be significantly greater than the sum of its parts. Finally, I’d like to make the point that the water sector cannot simply build its way towards achieving Net Zero –exemplified by a scheme we worked on at Great Dunmow with Anglian Water which focused on an off-site manufactured DfMA solution installed above ground. This meant less concrete was poured, while having the assets above ground rather than in channels made maintenance and servicing a far more straightforward activity compared to conventional civils solutions. For any project, Net Zero is set to be the prism through which the components should be viewed .i.e. the technologies themselves how they are installed and used the aftercare, support and maintenance services which underpin them The water companies should rightly be applauded for setting themselves such an ambitious goal.Hopefully, sector-wide collaboration will see best practice cascading across all points of the wider supply chain and across into other sectors. And meeting the challenge means the water companies can say to their stakeholders, including the communities they serve and their investors, we are making sure our suppliers are fully engaged in achieving Net Zero.[...]
[...]50 high-quality products and solutions from HUBER, a great many interested visitors and colleagues from all over the world: that was IFAT 2022, the World’s Leading Trade Fair for Environmental Technologies, which took place from May 30 to June 3 at the Munich Trade Fair Center. After IFAT 2020 had been cancelled due to the Corona pandemic, this year’s leading world trade fair proved to be very successful for HUBER. Bavarian Minister of State Glauber impressed by HUBER products Already on Monday, May 30, IFAT started with a highlight: Thorsten Glauber, Bavarian State Minister for the Environment and Consumer Protection, was given an exclusive tour of the 1,100 m² booth by the HUBER Board and was very impressed by the products and solutions. Interesting excursions, numerous delegations visiting the company From Tuesday to Thursday, several exciting excursions took place, where the participants could experience HUBER products and solutions live in action. They were enthusiastic about all destinations: the Bayreuth WWTP, the Vohburg and Nuremberg WWTPs, and the company Emter in Altenstadt and the Penzing WWTP. Several delegations, among others from the European People’s Party (Europäische Volkspartei), Bündnis 90/Die Grünen Bavaria, and the Chinese Association for Resource and Environmental Science in Germany (CVRU e.V.), as well as a large number of interested customers, contacts, and visitors made the trade fair experience at the HUBER booth a vivid event that was entertaining and interesting. IFAT: The World’s Leading Trade Fair for Environmental Technologies IFAT is the world’s leading trade fair for environmental technologies and is held every two years at the Messe München exhibition center. In the fields of water, wastewater, waste and raw materials management, companies exhibit their products, solutions and innovations and enter into dialog with numerous visitors from all over the world. At IFAT 2018, 3,305 exhibitors from 58 countries and regions presented themselves to a total of 142,472 visitors from 162 countries and regions on a total of 260,000 square meters of exhibition space.[...]
[...]On 22nd November, the UmweltCluster symposium on sewage sludge disposal and phosphorus recovery took place on the premises of HUBER SE in Berching. HUBER organised the event together with UmweltCluster Bayern e.V. - a Bavarian environmental collaboration initiative - and German Phosphorus-Platform DPP. The disposal of the sewage sludge that is generated from wastewater treatment in Germany costs about 500 million Euro per year. Up to now, sewage sludge disposal has meant that the sludge is either utilised as fertilizer being spread onto agricultural land or used for landscaping, or incinerated in power or cement works and mono-incineration plants. But there is an amendment of the German Sewage Sludge Ordinance (AbfKlärV) coming up with far-reaching changes relating to the utilisation of sewage sludge. The amendment, which will presumably come into force in 2017, stipulates a significant reduction of the agricultural use of sewage sludge and commits larger sewage treatment plants (for more than 50,000 PE) to recover the phosphorus. In addition to promoting the recovery of valuable material, this legal regulation is intended to protect also the groundwater against further contamination by pharmaceutical residues. This attracted great interest among sewage plant operators, operators of incineration plants, associations for sewage sludge utilisation, politics, engineering offices and research institutes. We finally counted more than 170 participants from Bavaria, Baden-Württemberg, Hesse and Austria. They were welcomed by Mr. Mayr of the UmweltCluster Bavaria, Mr. Georg Huber, CEO of HUBER SE, and Dr. Schnee of the German Phosphorus-Platform. At the beginning, Dr. Schnee as the moderator of the event read out a statement of the Bavarian State Ministry for environment, health and consumer protection on the future requirements on sewage sludge disposal in Bavaria. Prof. Bischof and Prof. Mocker of the University of Applied Sciences Amberg-Weiden in Eastern Bavaria presented a comprehensive overview on the present state of the Sewage Sludge Ordinance amendment and the options of phosphorus recovery on sewage treatment plants and from sewage sludge ash in general. Dr. Markus Rödiger, consulting engineer from Stuttgart, reported about the energetic situation of small and medium-sized sewage treatment plants including sewage sludge drying in solar dryers and belt dryers. He also provided useful information how to fill energy gaps in advanced treatment. Dr. Heindl of HUBER SE explained some of the highly efficient HUBER machines and described a possible scenario for phosphorus recovery in Bavaria. He explained that enough capacity would be available in Southern Bavaria for the thermal utilisation of sewage sludge whereas four new utilisation plants would have to be erected in Northern Bavaria, among other mono-incineration pants, preferably on existing power plant sites. The actual recovery of phosphorus from the ash could be done in two centres, among other by a private fertilizer processing and trading company. Harald Plank of S2E GmbH, a subsidiary of HUBER SE and WTE Wassertechnik GmbH in Essen, informed about mono-incineration plants for the thermal utilisation of sewage sludge which have especially been designed as modular systems for dewatered sludge volumes of approx. 10,000 to 50.000 t/year. These plants are offered as complete systems including sludge storage, drying, incineration and storage of ash in a building. With great anticipation the audience had waited for what Thomas Knoll, Managing Director of the joint waste management authority Schwandorf, would tell about a very special project. He reported of a merger of several municipalities for thermal sewage sludge utilization which is unique so far and takes over the drying of the generated sewage sludges, among other those of the city of Regensburg. A new belt drying plant is planned to dry the sludge on the site of the waste-fired power plant in Schwandorf using exhaust heat. The dried sludge is planned to be co-incinerated in a nearby cement works. A site report of phosphorus recovery from ash was presented by Bernhard Ortwein of CNP-Technology Water and Biosolids GmbH. Sewage treatment plants with biological phosphorus elmination frequently have problems with phosphate deposits in the pipelines downstream of the digester. The AirPrex system prevents such operational problems through phosphate removal from the sludge liquor and, as a side effect, produces fertilizer in the form of magnesium-ammonium phosphate. Burghard Hagspiel of Stadtentwässerung Nürnberg (authority for waste water and surface water collection and treatment) reported about the latest state of the research project KRN-Mephrec on STP Nuremberg. The sludge there is dried and briquetted. Coke and lime are added then and this mix is melt-gassed in a cupola furnace. The products that are won from the tap are metal and phosphate slag. Phosphate slag is a well plant-available fertilizer. Michael Knust of WTE-Betriebsgesellschaft GmbH explained the sewage sludge disposal concept to be implemented on STP Hecklingen in Saxony-Anhalt. As a first step, a belt dryer will be installed. From 2018 on, it is planned to further operate a mono-incineration plant for sewage sludge as a BOT model. Dr. Turek of MSE Mobile Schlammentwässerungs GmbH (Mobile Sludge Dewatering PLC) presented a mobile plant for phosphorus recovery from sewage sludge which is installed in two 40ft sea transport containers. In a wet-chemical process, magnesium-ammonium phosphate is won from the sludge which can be used as fertilizer after drying and granulation. There were vivid discussions, particularly about the methods of recovering phosphorus from sludge or ash, the comparison of mono-incineration and co-incineration in cement works after prior phosphorus depletion and about the costs of the available techniques and how to implement them in practice. The successful event ended with a tour of the HUBER factory.[...]
[...]Hanover, Germany The sewage sludge recycling plant in Hanover-Lahe will go into operation after successful hot start-up and optimisation: the plant, which has been equipped with two HUBER RotaDry® 2050 M disc dryer units, now recycles sewage sludge from the surrounding sewage treatment plants every day and supplies 5,000 households with district heating from a renewable source. The opening ceremony for the sewage sludge recycling plant took place on 6 July in the presence of Dr. Manfred Schüle (Managing Director of enercity contracting GmbH), Dr. Susanna Zapreva (Chief Executive Officer of enercity) and Hanover’s Mayor Belit Onay. Recycling 130,000 tonnes of sewage sludge per year The primary goal of the plant, which was planned and built by sludge2energy GmbH as the general contractor, is to recycle around 130,000 t of drained sewage sludge per year. A further goal is the return of the valuable and finite raw material phosphorus from the sewage sludge ash. As a result, enercity contracting GmbH is already making it possible today to comply with the recovery of phosphorus from wastewater, legally required as of 2029. HUBER supplied key plant components With the two disc dryers, HUBER supplied two key components for the Hanover-Lahe recycling plant. The sewage sludge delivered by various sewage treatment plants is supplied to the respective dryers by a bunker crane and piston pumps. The two HUBER RotaDry® 2050 M disc dryers dry the sludge from an average of approx. 22% DR to approx. 40% DR. The partially dried sewage sludge is then autothermally recycled in the subsequent, fluidised bed incineration unit. This means that without additional fuel, the thermal energy from the combustion is sufficient to supply the consumers of the steam system with steam. The installed turbine also makes its contribution to covering the plants own electrical needs. Greener district heating for up to 15,000 citizens of Hanover In addition to sewage sludge utilisation, the plant also contributes to making district heating in Hanover greener. The sewage sludge utilisation plant supplies up to 15,000 customers within the supply area with regenerative heat. Consequently, fossil-fuelled heat is substituted in the district heating network. A majority of this extracted heat is provided by the vapour condenser supplied by HUBER. Here, the vapours evaporated in the disc dryers are re-condensed, the district heating water is heated to 90°C and then made available to consumers. The HUBER start-up team would like to thank all those involved for the constructive cooperation on the construction site and wish everyone smooth plant operation![...]
[...]At the IFAT 2016 that took place in Munich from 30th May to 3rd June the HUBER group successfully presented its complete range of products and fields of application. With an exhibition stand of more than 1,100 m² HUBER presented a wide selection from its present product range and, moreover, a large number of innovations and improvements. Numerous visitors from all over the world took this opportunity to get an idea of our extensive business spectrum, innovative products and future-orientated solutions. We would like to use this opportunity to cordially thank all our visitors for their interest and trust placed in HUBER! The high response from the visitors and the many constructive meetings during the exhibition week are for us the confirmation that our products exactly meet the market requirements, both national and international, and provide innovative and reliable solutions for any application. It will remain our endeavour also in the future to commit ourselves to the development of innovative and customer-oriented solutions in the fields of wastewater and sludge treatment, potable water supply and energy efficiency.[...]