220 t/h
of aggregate into the hopper
Quarries & Aggregates
Natural aggregates
Italy
Beton Lana
Plant integration and upgrade within a limited footprint.
400 m³/h
water flow rate
15 t/h
of solids to the filter press
Beton Lana, based in Lana, in the Province of Bolzano, is active in the construction-materials sector in South Tyrol, specialising in the production of ready-mixed concrete, asphalt and aggregates. The company manages the full production cycle, from extraction in its own quarries to distribution logistics, and continues to invest in plant modernisation, material recovery and wash-water recycling within the production cycle.
The project challenges
Limited space
A new clarifier and a new filter press had to be added to the existing plant within a very limited footprint.
Modernisation
The existing filter press had to be upgraded with current-generation control and operating functions, with the modifications carried out on site to maintain operational continuity.
Volume management
The plant required fully automatic operation to handle high material throughput and treat over 400 m³/h of water in a closed loop.
Tecnoidea’s process-engineering approach
Reuse of the existing clarifier
Through structural steelwork modifications, the existing clarifier was converted into a clarified-water storage tank and integrated into the new plant.
On-site upgrade of the filter press
The existing filter press was upgraded on site with software updates and the addition of a filtrate collection tray beneath the support legs.
Addition of a new filter press (redundancy)
To increase treatment capacity, a new filter press was added alongside the existing machine, equipped with an integrated, automated cloth-washing system.
Results
Automatic flocculant dosing system
The SADF system now monitors clarification performance in real time and automatically adjusts the flocculant dosing.
Optimised pressing cycles
The LEM sludge-level monitoring system continuously monitors the sludge level in the clarifier, reducing unnecessary empty filter-press cycles.
Water recovery and waste management
These integrated technologies enabled the treatment of the silt-laden wastewater, supporting water recovery and reducing make-up water requirements, and dewatered the sludge into solid, easily handled filter cakes which can, where suitable, be recovered for reuse as a secondary raw material.