Denise Bevilaqua

Urban Mining of Rare Earth Elements from Fluorescent Lamp Recycling Waste via Acidithiobacillus thiooxidans : A Sustainable and High-Performance Bioleaching Approach

Ailton Guilherme Rissoni Toledo, Warley Pimenta de Sá, Beatriz Sanches Gonçalves, Felipe Bortolazzo Fernandes et autres

High Resolution Image Download MS PowerPoint Slide Rare earth elements (REEs) are critical for modern technologies, yet their sustainable recycling from electronic waste remains a significant challenge. While bioleaching presents a green alternative to conventional hydrometallurgy, its efficiency for complex real wastes …

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Lactate as co-substrate to biostimulate sulfidogenic bioreactors using brewery spent grain as slow-release electron donor for acid mine drainage treatment

Guilherme S. Peres Neto, Rachel B. Costa, Piet N.L. Lens, Denise Bevilaqua

Bioremediation using sulfate-reducing bacteria (SRB) for treating acid mine drainage (AMD) offers benefits such as low energy consumption, minimal sludge generation, and metal recovery. However, AMD is carbon-deficient and necessitates external electron donors, thereby increasing costs. Lignocellulosic materials function as cost-effective slow-release …

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Electrochemical insights into chalcopyrite leaching: Applying semiconductor theory for enhanced recovery

Ailton Guilherme Rissoni Toledo, Ysabela Maria Thomeo, Kelly Johana Dussán, Assis Vicente Benedetti et autres

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Recycled Rare Earth Ions From E‐Waste In Borogermanate Glasses For Magneto‐Optical Applications

Ana Elisa Berno, Fábio José Caixeta, João Pedro Costa Ruzene, Aline Martins Feltran et autres

Abstract Magneto‐optical borogermanate glasses were developed by incorporating electro‐electronic waste recovered from fluorescent lamps. Glasses with a composition of (41GeO₂–25B₂O₃–4Al₂O₃–10Na₂O–20BaO)‐x%wst, (x=0, 10, 20, 30, and 50 wt% of waste) were prepared. The final chemical composition was determined, and the glasses were characterized …

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Semiconductor Aspects of Chalcopyrite and its Relevance for Copper Bioleaching: A Review

Ailton Guilherme Rissoni Toledo, Assis Vicente Benedetti, Denise Bevilaqua

The demand for copper drives hydrometallurgical innovation amidst high-grade resource depletion. Compared to pyrometallurgy, biohydrometallurgy presents eco-friendly, cost-effective solutions for ore processing. Semiconductor minerals, notably chalcopyrite, which corresponds to the largest source of copper in the earth’s crust, play a critical role. …

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Chalcopyrite Dissolution: Challenges

Denise Bevilaqua, Ailton Guilherme Rissoni Toledo, Laíze Guimarães Crocco, Riberto Nunes Peres et autres

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Hydrometallurgical Processing of Sulfide Minerals from the Perspective of Semiconductor Electrochemistry: A Review

Ailton Guilherme Rissoni Toledo, Denise Bevilaqua, Sandeep K. Panda, Ata Akçıl

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Exploring chalcopyrite (bio)leaching mechanisms under thermophilic conditions

Ailton Guilherme Rissoni Toledo, Rachel Biancalana Costa, Tiago Palladino Delforno, Fabiana Antonia Arena et autres

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Co-Application of Porous Polysulfide Pellets with Acidithiobacillus thiooxidans Improves Sulfate Availability in Soil

Stella F. Valle, Amanda S. Giroto, Rodrigo Klaic, Denise Bevilaqua et autres

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Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum

Samir Prioto Tayar, Maurício César Palmieri, Denise Bevilaqua

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New insights into oxidative-reductive leaching of chalcopyrite concentrate using a central composite factorial design

Ailton Guilherme Rissoni Toledo, Samir Prioto Tayar, Fabiana Antonia Arena, Assis Vicente Benedetti et autres

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A sustainable approach on biomining of low-grade bauxite by P. simplicissimum using molasses medium

Syed Sikandar Shah, Maurício César Palmieri, Sandra Regina Pombeiro Sponchiado, Denise Bevilaqua

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