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[...]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 [...]

[...]Innsbruck, Austria Innsbrucker Kommunalbetriebe AG (IKB) invest into a HUBER Belt Dryer BT 16. With its strategy “ from sewage works to power plant ”, IKB’s wastewater treatment plant Innsbruck sustainably produces energy and intelligently integrates it into its existing system. The aim is to further increase the efficiency of the complete sewage treatment works and make it one of the most modern plants in Europe. With its about 130,000 inhabitants, Innsbruck, the capital of Tyrol, is the fifth largest city of Austria and produces 50,000 m³ wastewater a day (peak: 145,000 m³) together with its 14 [...]

[...]Freystadt, Germany HUBER sludge treatment solution on STP Freystadt – a concept that pays off for the operators The newly installed process chain replaces the previous system with contract dewatering and its associated problems. STP Freystadt is designed for approximately 8,000 PE. The sludge on site was previously dewatered only once a year. After the implementation of the new HUBER systems, comprising a HUBER Screw Press Q-PRESS® and a HUBER Sludge Turner SOLSTICE®, the plant operators can look forward to a smoother and easier plant operation, and the disposal costs incurred by the [...]

[...]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 [...]

[...]Freystadt, Germany Due to the new regulations and legislation for sewage sludge, disposal costs have doubled for many sewage treatment plants or increased to far more than 100 € per ton original substance. The reason for the cost increase is that the standard solution for meeting the requirements of the new legislation is sludge incineration. Incineration capacities are however unequally distributed and exploited to a large extent, and transport ways have become longer on many sites. Disposal costs can be reduced if the sludge volume is reduced through drying. The Bavarian municipality Freystadt [...]

[...]United Utilities, Warrington, England Background In 2017, United Utilities started work on a four-year improvement project at Blackburn and Darwen WwTW. This work included: Extending the current works at Blackburn WwTW to construct new tanks, buildings and improve the treatment process. Taking existing wastewater flows from Darwen WwTW through to Blackburn WwTW by installing a new connecting pipe and upgrading the existing tanks. Constructing new storm tanks and new pipeline to transfer wastewater to Blackburn WwTW from Nabs Head WwTW. Blackburn WwTW treats principally domestic crude sewage from[...]

[...]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 [...]

[...]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 [...]

[...]Redesign reduces the hazard potential Whether we develop new products or redesign existing machines, we always do this considering also the safety aspects that are important to minimise the hazard potentials when handling our products as required by the Machinery Directive. How important it is to pay special attention to product safety could be seen only last year on a competitor’s solar sewage sludge dryer installation in Bavaria where a tragic accident happened. This was even more reason for us to once again look very thoroughly at our safety systems and further improve them. When we recently[...]

[...]The advanced treatment of sewage sludge or industrial residual sludge is increasingly gaining in importance also for industrial customers. Whereas, until recently, the common strategy was to pass the sludge on to disposal companies at low costs, this has now become more and more complicated, difficult and especially more expensive due to the modified and now more stringent German Fertilizer Regulation and Waste Sewage Sludge Ordinance and because of the generally increasing costs in the disposal industry. Therefore, industrial customers increasingly concern themselves with strategies how to additionally[...]