Innovative processes for celestite recovery, waste valorisation and water recirculation were validated through laboratory and pilot-scale trials. Equipment was designed, manufactured and assembled. Optimised gravimetric and centrifugal concentration tests enabled improved mineral recovery, while new super-thickener systems achieved higher sedimentation rates and water recovery.
Advanced mobile impact crushing and mobile screening prototypes integrating electrification, dust suppression and noise encapsulation technologies were engineered and field-tested, achieving up to 83% dust reduction, 27% fuel savings and 3 dB(A) noise decrease. Novel crushability testing methods and granulometry methods (based on artificial vision systems) enhanced predictive control of energy use, demonstrating energy savings and CO2 emission reduction. ROTATE Handbook compiles sustainable quarrying solutions for energy efficiency, resources efficiency & water management, life cycle analysis, air emissions, noise estimation & abatement during quarry operation, soil quality management, biodiversity, rehabilitation & visual impact, and human health & ecosystem risk assessment.
Aggregate-washing sludges have been proved as fillers, supplementary cementitious materials (SCM) and lightweight aggregates (LWA). Aggregate sludges have also been reused as raw materials for 3D-printing mixes. Moreover, geophysical-mineral mapping workflows confirmed industrial feasibility. A modular digital platform was developed for integrated environmental management, coupling real-time monitoring with multi-criteria decision-making tools for emissions, energy and biodiversity.