Beneficiation of Ferric Slag From Recycled Automotive Batteries for Clinker Production

This study evaluates the technical and environmental feasibility of using slag from secondary lead smelting as an alternative raw material in clinker production for the cement industry. The iron-rich slag was partially incorporated (20%) into the clinker’s iron oxide composition, resulting in concrete blocks with higher compressive strength than conventional ones. Physicochemical tests confirmed the environmental safety of the material. The proposal helps reduce landfill disposal, lowers waste treatment costs, and strengthens the circular economy by offering a sustainable solution for two industrial sectors: lead recycling and civil construction.

Presenters

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Dr Davi Trindade

Director, Antares

Brazil

Davi Trindade is a Brazilian national. He holds a Master’s degree (M.Sc.) in Environmental Engineering from the Federal University of Technology – Paraná (UTFPR). He is currently the director of ANTARES, a leading Brazilian company in environmental technology development, recognized with major national environmental awards, including the American Chamber of Commerce Award (2012), FIESP Environmental Award (2013), and the ANA Award (2014). Antares was also selected to represent Brazil at the World Water Forum in Seoul, South Korea, in 2015, and participated in an international initiative funded by Innovate UK in partnership with the University of Cambridge.

Davi leads what is known as the “world’s largest research initiative on the characterization and study of secondary lead smelting slag for recycling and reuse”, involving over 11 companies in the sector and having published several papers on the subject.

Davi specializes in contaminated site management and safe handling of process residues. He has published articles in journals such as PB Brasil, among others. He holds a Bachelor’s degree in Civil Engineering from Universidade Vale do Rio Doce, in Governador Valadares. Deeply interested in natural resource conservation, Davi has participated in several socially and environmentally oriented projects funded by SENAI and UTFPR. He also has over 10 years of experience in chemical engineering processes for the recovery and recycling of acidic and alkaline effluents.