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Risaia del Duca: Where Smart Farming, Research and...
Sludge Treatment Equipment
Sludge treatment in civil wastewater plants stabilises and reduces the volume of sludge produced during primary and secondary treatment. Processes include thickening, digestion, dewatering, and sometimes drying. Proper treatment ensures safe disposal or reuse, minimising environmental impact and complying with regulatory requirements. Modern systems are designed for energy efficiency, odour control, and reliable operation, helping plants achieve sustainable management of residual solids while reducing operational costs and supporting circular economy initiatives.
Sludge Thickening Systems
For sludge thickening, SAVECO® offers both static and dynamic systems, ensuring efficient volume reduction and optimised downstream processing.
SAVECO® Sludge Thickeners are used to increase the dry solids content of sludge following its discharge from the digestion tank. Thickening the sludge enhances overall process efficiency in wastewater treatment plants.
The innovative POLYLESS™ Sludge Thickening System by SAVECO® is a dynamic mechanical solution that achieves effective thickening without the use of polyelectrolytes. This system significantly reduces chemical consumption and waste compared to conventional sludge treatment methods.
Lime Dosing Plants
For lime dosing, SAVECO® supplies complete plants featuring state-of-the-art silo technology, along with a comprehensive range of accessories and safety equipment for reliable and safe operation.
For the neutralisation of sludge, hydrated lime is typically stored in silos and extracted as required using a tubular screw feeder. The lime is then accurately fed into a mixer via a micro-batch feeder.
Each silo is equipped with a filling pipe and intercepting pinch valve, a pipe elbow, a venting filter, a pressure relief valve, safety and monitoring instruments, a bin activator, and a shut-off valve—ensuring safe, efficient, and controlled handling of the material throughout the process.
Sludge Dewatering and Conditioning Systems
For sludge dewatering and conditioning, SAVECO® offers specialised conveying, feeding, and mixing systems, all designed to meet the highest international environmental standards.
Sludge dewatered by a centrifuge or filter press is conditioned with lime or another inertising agent in a mixer. Both conditioned and unconditioned sludge are conveyed using shaftless bin bottoms and screw conveyors, ensuring reliable and continuous handling throughout the process. These systems are engineered for minimal maintenance, reduced risk of blockages, and safe, hygienic operation, providing efficient transport of sludge to storage, treatment, or disposal points while optimising plant performance and operational safety.
Sludge Drying Systems
For sludge drying—the ultimate treatment option—SAVECO® provides specialised conveying, feeding, mixing, and handling equipment designed to meet the highest user standards.
Sludge drying is an advanced alternative process in which dewatered sludge is dried in a rotary drum dryer, producing a dry, granular end product. A portion of the dried sludge is recirculated to a continuous mixer, where it is blended with fresh dewatered sludge before being reintroduced into the dryer. This approach enhances drying efficiency, optimises energy consumption, and reduces overall moisture content. It also produces a more stable, hygienic, and transportable product suitable for safe disposal, reuse, or further processing, contributing to sustainable and cost-effective sludge management.
WAMGROUP®
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