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[...]Complete Plants Multifunctional plants for reliable and complete wastewater pre-treatment. Fine screening, Screenings treatment, Grit separation, Grit classification, Separation and removal of fat and grease in one single machine HUBER Complete Plant ROTAMAT® Ro5 ROTAMAT® Screens | Complete Plants HUBER Complete Plant Hydro Duct ROTAMAT® Ro5 HD ROTAMAT® Screens | Complete Plants HUBER Coanda Complete Plant ROTAMAT® Ro5 C ROTAMAT® Screens | Complete Plants Multifunctional plants for reliable and complete wastewater pre-treatment For reasons of operational safety the first step of sewage treatment works is generally mechanical wastewater pre-treatment to prevent operational problems, such as blockages, wear, or silting. Complete wastewater pre-treatment includes: Fine screening Screenings treatment Grit separation Grit classification Separation and removal of fat and grease We developed and supplied our first ROTAMAT® Complete Plant during the 1980s. Since then hundreds of consulting engineers and operators have selected and installed our Complete Plants because of their reliable operation, low maintenance and low space requirements. Our Complete Plants have been continuously improved and additional models and sizes were launched to give operators the optimum solution for their specific requirements. Planning and installation is not only quick and easy, but also saves considerable construction costs.[...]

[...]The HUBER Screw Press Q-PRESS® 280 trial equipment has been busy over the last few months. Although it has been much harder and taken longer to organise than usual, we at HUBER Technology consider ourselves very fortunate to have been able to conduct business like this during the COVID pandemic. Trial 1 The first trial was at a site in the North East of England. The site has a Population Equivalent of 61,469 and a full flow to treatment of 463 l/s and which presently uses a Gravity Belt Thickener (GBT) to mechanically thicken the Surplus Activated Sludge (SAS) produced on site, which is then mixed in 2 storage tanks with the manually decanted indigenous primary sludge. Due to varying transfer volumes and times, the ratio of SAS to Primary in the sludge tanks can fluctuate significantly. Results summary Average Incoming DS 3.97% Average Cake DS 28.48% Trial 2 This was at a WwTW site that treats effluent from a Population Equivalent of 19,615 with a dry weather flow of 202 l/s and full flow to treatment of 505 l/s. Primary industries in the catchment are food manufacturers. The treatment on site produces roughly 320 m3/d of primary sludge from the Kaldnes moving bed bio-film process, which uses aeration and floating plastic media, and around 195 m3/d of Surplus Activated Sludge (SAS). The Kaldnes sludge was considered a “tricky” sludge to subsequently process. Results summary Average Incoming DS 3.92% Cake DS using enhanced mixing 23% These results demonstrate that the Q-Press® provides a viable alternative to centrifuges with the following benefits 80% power reduction compared to centrifuge 30% reduction in poly compared to belt presses 6 fold reduction in maintenance compared to centrifuge Reliable single moving part slow rotation Reduced operator interventions Filtrate drains by gravity Removable outer case for easy maintenance For full details on the trials and more performance results please contact Rachael Harvey at Rachael.harvey@huber.co.uk[...]

[...]Municipal Wastewater Treatment Innovative solutions for the protection of people and the environment We are specialists for various process steps in municipal wastewater treatment. We are specialists for various process steps in municipal wastewater treatment. Mechanical Preliminary Treatment HUBER Solutions for mechanical wastewater pre-treatment: Contaminants and solids contained in wastewater are removed by screens and fine screening systems as well as through sedimentation and separation processes. Advanced Wastewater Treatment The aim of advanced wastewater treatment is the reduction of one or more of the following pollutants: solids, COD, BOD, phosphorus, nitrate, micropollutants and germs. Elimination of Trace Substances HUBER offers solutions for the elimination of trace substances and micropollutants from wastewater with granulated activated carbon (GAC) and powdered activated carbon (PAC). Sludge Treatment HUBER offers highly efficient and comprehensive solutions for sludge treatment, from mechanical pre-treatment with screens to drying and incineration. Screening in Pumping Stations Reliable screening and solids removal for pumps and lifting units at combined and separate sewer systems. HUBER pumping station screens maintain the operating stability of the pumps and protect them against interfering substances. We are experts in municipal wastewater treatment and liquid-solid separation as well as sludge treatment. We have a comprehensive range of machines and equipment for wastewater treatment plants. Our products and solutions have demonstrated their performance and reliability at wastewater treatment plants of every size – from small WWTW to extremely large WWTW. We are keen to engage with our customers as early on in the planning process as possible to ensure that the correct solution is provided. We are partners to our customers and support them in meeting the required treatment performance. Schematic drawing: Overview of a municipal sewage treatment plant Schematic drawing: Overview of a municipal sewage treatment plant We provide solutions for the following fields of municipal wastewater treatment: Mechanical Pre-Treatment : As the first stage of wastewater treatment, HUBER provide – Coarse and fine screening Combined screening Screenings handling Packaged inlet works Advanced Wastewater Treatment : To safely meet increased requirements for the quality of the treated wastewater, there are various processes for reducing and eliminating solids, phosphorus, nitrogen and trace substances . Screens for Pumping Stations : Specific screens and screening systems ensure the operational safety of pumping stations and lift stations.[...]

[...]HUBER continues to expand its media presence and have now been active on the social network LinkedIn for a few months. Therefore, you now have the opportunity to follow this channel and keep up to date with the latest projects, products, solutions and news. If you follow the company page, the latest info and notifications will be displayed in your news feed or you will receive a notification in the LinkedIn app. Become a follower of HUBER and always get the latest news and background information on products, projects and much more. Follow us now on LinkedIn: https://www.linkedin.com/company/huber-se[...]

[...]The aerated grit trap is a very important element in mechanical wastewater treatment. Its task is not only to reliably remove the grit from the wastewater flow but also to retain particulate lipophilic substances (grease) to prevent floatable particles from settling or overflowing in downstream treatment systems. Fine grit of a grain size ≥ 75 µm can usually not be separated by conventional aerated longitudinal grit traps as the rising air counteracts the continuous sedimentation of small particles. Very long, wide and voluminous structures are already required if you want to remove grit of a grain size ≥ 100 µm. The new HUBER Grit Trap GritWolf® we will present for the first time at IFAT 2018 sets new standards. The screen is the result of a development based on a wealth of experience in grit and grease removal gathered over many years. Steering away from space-consuming aerated longitudinal grit traps, the HUBER GritWolf® consists of an aerated chamber and a separate unaerated chamber. In the first smaller chamber the wastewater is exposed to fine-bubble aeration. Floatable particles float to the water surface where they accumulate forming bigger agglomerates. A paddle system removes the agglomerates from the grit trap surface just before the outlet. The second chamber is unaerated and equipped with so-called ‘stacked plates’. Due to the deep flow approach and the advantages of a lamella separator, the GritWolf® reliably removes 90% of the grit of grain size ≥ 75 µm. The new HUBER Grit Trap GritWolf® is available in different sizes for flow rates from 44 l/s (1 MGD) to 876 l/s (20 MGD) and requires much less space than conventional systems. The grit trap tank is usually made of concrete, stainless steel tanks for a flow of up to 175 l/s (4 MGD) are however available as an option . The HUBER GritWolf® can also be integrated into existing grit trap chambers. The horizontal grit conveyor, the lamella packages and the paddle system for grease removal are manufactured from corrosion-resistant material. The grit is removed axially from the HUBER Grit Trap GritWolf® by a time-controlled horizontal screw conveyor. Even large ‘sand dunes’ occurring under stromwater conditions (stormwater flushes) are evenly dosed into the suction area of the grit pump. Clogging in conical grit sumps or wear on scrapers are a thing of the past. A grit pump delivers the grit-water mix into a HUBER Coanda Grit Washer RoSF4 that produces clean grit in a proven way, thus perfecting the entire grit treatment system.[...]

[...]Bad Orb, Hessen, Germany The further developed HUBER Screw Press Q-PRESS® was presented for the first time at IFAT 2016. The first units were installed soon and have meanwhile been in operation for more than a year. Now, it is time to review the operational experience gained on site against development targets. In April 2016, a new sludge dewatering system for STP Bad Orb was put out to tender to replace a chamber filter press. Extensive on-site testing was done before in 2015. During the tests, the screw presses turned out to be the most suitable dewatering solution. HUBER offered the newly developed HUBER Screw Press® 620.2 and could win the tender which included a screw press, the electrical control sytem, conveying technology, coagulant agent plant for simultaneous conditioning of liquid and powdery polymer, and a solution for bridging the time of installation. The screw press was installed and successfully put into operation in October 2016. The operating staff on site had already time to get familiar with the operation of the machine during the installation phase when a mobile Q-PRESS® 440 unit was operated on site as a transitional solution. Performance data of the HUBER Screw Press Q-PRESS® 620.2 Throughput: 5 – 7 m³/h, 100 – 210 kgDR/h Polymer demand: 15 kg/t; 1:1 mix of powder/liquid Dewatering results: 24 – 27 % DR Separation degree: > 97 % Screw rotation speed: 0.3 - 0.4 rpm Power consumption: 0.5 – 0.8 kW The Q-PRESS® on STP Bad Orb has already dewatered approximately 7000 m³ sludge since when it was put into service. We would like to thank the operators for their cooperation and excellent support when we were testing new drive technologies on the screw press. In addition to the installation in Bad Orb, another eight HUBER Screw Press Q-PRESS® 620.2 units have been installed successfully. HUBER Screw Press Q-PRESS® – features of the new model Easier maintenance and reduced space demand Axially dividable filter baskets are optionally available, they facilitate maintenance work significantly. Massive components, such as the screw shaft and some filter elements, can now remain in the machine during inspections. Much less space and time is therefore required for maintenance. Even if non-dividable filter baskets are used, space requirements for maintenance on the installation place are now reduced to the minimum that is necessary for machine operation and inspection. Efficient screen surface cleaning inside and outside for improved screening performance The outer surface of the cylindrical filter baskets was previously cleaned by rotating the filter baskets along a stationary nozzle bar while the dewatering process was interrupted. The new screw press offers continuous dewatering without interruptions through a rotating washing system that rotates around the filter baskets for periodic cleaning. Dewatering degree and machine throughput are no longer influenced by interruptions or starts/stops of the washing systems. In contrast to many competitive machines the rotating washing system allows for independent cleaning of the filter surfaces of the inlet and press zone. In addition, the upper and lower filter halves can be cleaned separately so that only the contaminated filter surface sections are cleaned. Filter surface sections which have been cleaned cannot be contaminated again by wash water that runs down.This system significantly reduces the water demand for filter cleaning and additionally minimizes rewetting of the sludge cake through washing. Reliable cleaning of the inner screen basket surfaces is just as important as cleaning of the outer surfaces. The inner surfaces are typically cleaned by a scraper that is mounted on the screw flights and wipes clear the inner filter surface as the screw shaft rotates. The efficiency of this scraping & wiping operation has direct influence on filter resistance and the water discharge velocity of the screw press. Both have an influence on dewatering degree, throughput, filtrate quality, polymer demand, and thus on the operating costs for dewatering. After extensive development and test series HUBER screw presses are now equipped with an innovative, especially designed patented scraper material which cleans the inner filter surface much better and more reliably than customary brushes and a lip seal system. Larger screening surface for increased hydraulic throughputs What is new is that the open filter surfaces in the filter baskets have been increased by up to 100%. The individual screen sizes are therefore able to process significantly higher hydraulic loads without placing higher loads on the filter surfaces and thus the filtrate, and without increasing polymer demand. More efficient drives for improved performance with reduced energy costs New drives exceed current energy efficiency standards. They save not only electricity costs, they also offer plant operators the possibility to operate their sludge dewatering unit much more flexibly due to significantly wider motor speed ranges. Inclined installation for improved dewatering efficiency For good reasons, the basic appearance of the press, the inclined installation, remains as it has always been. The inclined design ensures that screenings removal units can in most cases be connected without the need to place it on an additional elevation. Furthermore, the inclination of the filtrate chambers prevents sedimentation and eliminates the need for manual cleaning work. The decisive advantage of the inclined installation is improved dewatering efficiency. The separated filtrate flows off from the screen basket by gravity, against the flow direction of the press sludge. Rewetting of hydrophilic sludges through filtrate is thus reduced and the dewatering degree improved. Moreover, inclined installation facilitates especially the start-up procedure of the screw press.[...]

[...]New pressure doors? Hasn't HUBER successfully manufactured a large number of pressure doors for a long time already? That's right – since the early eighties about 250 to 300 a year. What new features would make them better? The pressure doors (TT7) we have produced by now are laid out for a limited static load of up to 10 m water column. The feedback we get from the market, from suggestions, predictions or even concrete inquiries, we know that this pressure resistance will not be sufficient any more for many future building projects. A pressure resistance of up to 30 m water column could be required for some projects, such as for pumping stations, pressure increasing plants in drinking water supply projects, locks or stormwater overflow tanks. Reason enough to work on a solution! The solution has the internal name "TT7-30" – a pressure door that is absolutely tight up to 30 m water column. The development phase for the new door started at the beginning of 2012 and held a lot of challenges for everyone involved in the project. The HUBER product management together with the construction department designed a new door based on the long-term experience with manufacturing pressure-tight doors. A special construction had to be developed which, due to its distinctive design and appearance (see picture), offers a substantially improved resistance to high water pressures. The construction was statically calculated and tested to meet the diverse relevant standards, regulations and guidelines. After a prototype had been manufactured and successfully tested, the first order could be realized: As part of an order placed by Gelsenwasser AG for the water works Echthausen we delivered three doors of the new, innovative type with size 800x1200 mm. The new product impresses with numerous innovative features: Absolutely tight up to 30 m water column. The central lock allows for easy and quick operation of the door. Due to its special design the door can easily and hygienically be cleaned in the course of regular elevated reservoir cleaning. Especially robust seals have been developed with regard to dead water zones. The seals of the TT7-30 doors are certified to KTW and DVGW W270 standards which are of fundamental importance in the field of drinking water supply.[...]

[...]Plymouth, England Background Site operators at Plymouth Central STW wanted a more reliable and less labour intensive option to de-watering than a centrifuge. South West Waters requirements were lowest WLC, low operator attendance and simple operation South West Water had been looking at alternative dewatering technologies with lower TOTEX to potentially replace existing veteran centrifuge assets and tasked preferred contractor Kier to offer solutions for the Plymouth Central and Maer Lane WwTWs. Plymouth Central serves a Population Equivalent of around 320,000 and, being on a coastal port receives higher proportions of saline and fat than other in-land works typically do. Maer Lane serves a small population on the outskirts of Exmouth On site previously was a 2002 centrifuge unit with 45 kW main drive and 7.5 kW back drive which operates from around 6:30 AM to 9 PM as required, running at around 30 m³/h. Kier undertook the process evaluation which compared Whole Life Costs, operational requirements and product support. Solution HUBER worked with Kier, undertaking trials to demonstrate the machine to SWW operations who wanted to touch and feel the machine and satisfy them that the machine was simple, robust and easy to operate. The trial data not only satisfied SWW that this - first of its kind in their region - was what they needed but provided hard data to confirm WLC in terms of power and chemical consumption as well as enabling accurate sizing. HUBER Screw Press sludge dewaterers are designed to provide efficient, fully-automatic, mechanical dewatering of sludge once the diluted polymer dose into the feed sludge has been adjusted correctly to provide a suitable flocc. The enclosed design serves to reduce the odours, noise and the potential requirement for operator attendance due to spills that can be associated with other dewatering technologies on some sites. The low operating speed of the screw presses reduces wear and energy demand. For the trial to take place, a HUBER Screw Press 280 was tested on indigenous co-settled chemically-assisted lamella-settled DensaDeg Primary and humus-like BAFF secondary sludges from the Plymouth Central site as well as imported similar sludges from the site at Maer Lane WwTW. The feed sludge during the trial varied from 4.6 to 5.15% DS with an average active polymer usage of 4.7-4.8 kg/tDS with an average cake dryness of 33% and minimum of 28.6%. As a comparison the existing centrifuge was using around 8-10 kg/tDS of polymer based on a throughput of 25-30 m³/day to produce cake at around 23%. A sample of the trial results from a single day are shown in the adjacent table. Following the successful trial Huber Technology were asked to tender for the supply of the permanent units for both of the sites at Maer Lane and Plymouth Central. The sludge feed at both sites was specified as 4.5% DS with a feed rate at Maer Lane of 10.22m³/hr and at Plymouth Central a feed rate of 35.55 m³/hr. The HUBER Screw Press 800.2 model was selected for both sites with a single unit required at Maer Lane and three units required at Plymouth Central. Following a successful tender submission Huber Technology were awarded both projects in January 2019 with installation and commissioning due to take place in July 2019. Client Benefits SWW now have an alternative to centrifuges with a demonstrable WLC benefit together with Operators who have bought into the equipment and are supportive of the change. 50% polymer saving 80% power savings (typical) 6 fold maintenance savings are achieved[...]