ArticleScientific reports2021
Removal behavior and chemical speciation distributions of heavy metals in sewage sludge during bioleaching and combined bioleaching/Fenton-like processes.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Review of Magnetic Adsorbents for Heavy Metals in Sludge Leachate: Synthesis, Mechanism, and Performance Evaluation.Materials (Basel, Switzerland) · 2026Review
- Bioremediation in action: recent progress, challenges, and future directions for environmental restoration.Biodegradation · 2025Review
- Porphyrin-Based Sorbents for the Enrichment and Removal of Metal Ions.Molecules (Basel, Switzerland) · 2025Review
- Perspectives on innovative non-fertilizer applications of sewage sludge for mitigating environmental and health hazards.Communications engineering · 2024Review
- Research progress and perspective on sludge anaerobic digestion technology: A bibliometric analysis.Water science and technology : a journal of the International Association on Water Pollution Research · 2024Article
- Bioleaching Mercury from Coal withMicroorganisms · 2023Article
- A Comparison of Conventional and Ultrasound-Assisted BCR Sequential Extraction Methods for the Fractionation of Heavy Metals in Sewage Sludge of Different Characteristics.Molecules (Basel, Switzerland) · 2022Article
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Authors and funding
7 authors.
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Abstract
The removal and chemical speciation changes of heavy metals in the sewage sludge during the single bioleaching and combined bioleaching/Fenton-like processes were compared in this study. The improvement in the dewaterability of the treated sludge was also investigated. The single bioleaching led to a removal of Zn, Cu, Cd, Cr, Mn, Ni, As and Pb of 67.28%, 50.78%, 64.86%, 6.32%, 56.15%, 49.83%, 20.78% and 10.52% in 10 days, respectively. The chemical speciation analysis showed that the solubilization of heavy metals in mobile forms (exchangeable/acid soluble and reducible forms) and oxidizable form was the main reason for their removal. Subsequent Fenton-like treatment was carried out at different bioleaching stages when the bioleached sludge dropped to certain pH values (4.5, 4.0 and 3.0), by adding H
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