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[...]Sludge Drying Cost reduction on sludge transportation and disposal costs. Efficient solutions to minimise the volume of sludge for disposal Wastewater sludge is dried to minimise its mass and to save sludge transport and disposal costs. Handling and storage of dried sludge is cost effective, and any further disposal and utilisation methods are possible. The dried product can be used as fertiliser, as well as fuel – the calorific value of fully dried sludge is similar to that of brown coal. Thermal energy from different energy sources Thermal drying involves the evaporation or vaporisation of [...]

[...]Efficient and reliable removal of coarse material from sludge For the operational safety of sludge treatment processes, it is advantageous if the sludge is as free as possible of coarse material and disturbing solids (e.g. paper, plastics, fibres and hair). Otherwise, repeated malfunctions of aggregates and processes may occur in pumps, but also during thickening, dewatering or drying, and these can be time-consuming and costly to rectify and require increased manpower. For the agricultural recycling practised in many regions of the world, it also makes sense to separate all solids such as [...]

[...]Various solutions for conveying dewatered and dried sewage sludge Sludge transport plays an important role in the planning and construction of sludge drying plants. On the one hand, the dewatered sewage sludge has to be brought into the dryer and on the other hand, the fully or partially dried sewage sludge has to be transported away from the dryer. When designing a particular transport solution, important criteria include not only the required transport capacity but also the sludge properties (moist, dry, sticky, dusty,...) and the desired degree of automation. Feeding and Removing Supply and[...]

[...]Mechanical sludge thickening to reduce sludge volume Before sludge with a very high water content is subjected to further treatment, it makes sense and is often necessary to reduce its volume by thickening. This also increases the solids content of the sludge. If sludge with a solids content of 1% is thickened to 6% solids, this gives a volume reduction of more than 80%. The thickening of the sludge is effected by separating sludge water; thin sludge becomes thick sludge, which is viscous but still pumpable. Sludge Volume Reduction Excess Sludge Thickening Sludge settles in gravity thickeners and is[...]

[...]HUBER Case Studies for Mechanical and Thermal Sludge Treatment Applications 2026-03-31 Berching, Germany News from the HUBER Rental Equipment division: expansion of the rental fleet, systems and services In addition to permanently installed systems within buildings, there has been a significant increase in demand for... Continue reading 2026-03-27 Berching, Germany HUBER As a full-liner: A Partner for Every Stage of Modern Wastewater and Sludge Treatment Anyone planning or operating a wastewater treatment plant, or looking to optimise an existing process, faces growing... Continue reading 2025-11-[...]

[...]Birmingham, England A HUBER Technology Industrial Wastewater Case Study HUBER Technology recently completed a project for the largest confectionery manufacturer in the UK at their site at Marlbrook between Leominster and Hereford. The project for Mondelez which own confectionery brand Cadbury was delivered following good early engagement to allow a successful project to be delivered. Project Profile This project was part of the upgrade to the sites effluent treatment plant to include for a provision of sludge dewatering capability on site. It involved removal of an existing redundant DAF [...]

[...]Plymouth + Maer Lane, Great Britain South West Water had been looking at alternative sludge dewatering technologies with lower TOTEX to potentially replace existing veteran centrifuge assets and tasked their preferred contractor Kier Utilities to offer solutions for the Plymouth Central and Maer Lane WwTW’s. HUBER worked closely with Kier Utilities, undertaking trials to demonstrate the HUBER Screw Press Q-PRESS® to South West Water operations who wanted to touch and feel the machine and satisfy themselves that the machine was simple, robust and easy to operate. The trial data not only satisfied[...]

[...]Zaragoza, Spain[...]

[...]Using the energy of the sun Solar drying of sludge uses the energy of the sun as a thermal energy source. This provides a very ecological, environmentally friendly and energy-efficient process for the treatment of sludge from wastewater treatment plants or water purification plants. The basic principle of the process is that the sludge is dried in a greenhouse structure. The sludge can be brought into the greenhouse manually, for example with a wheel loader, or automatically directly from the dewatering facility by means of special conveying units. In the greenhouse, the sludge must be distributed[...]

[...]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 [...]