Detailed Information on Publication Record
2021
Leachability of metals from waste incineration residues by iron- and sulfur-oxidizing bacteria
KREMSER, Klemens, Sophie THALLNER, Dorina STRBIK, Sabine SPIESS, Jiří KUČERA et. al.Basic information
Original name
Leachability of metals from waste incineration residues by iron- and sulfur-oxidizing bacteria
Authors
KREMSER, Klemens, Sophie THALLNER, Dorina STRBIK, Sabine SPIESS, Jiří KUČERA (203 Czech Republic, guarantor, belonging to the institution), Tomáš VACULOVIČ (203 Czech Republic, belonging to the institution), Dalibor VŠIANSKÝ (203 Czech Republic, belonging to the institution), Marianne HABERBAUER, Martin MANDL (203 Czech Republic, belonging to the institution) and Georg M. GUEBITZ
Edition
Journal of Environmental Management, London, Academic Press Ltd-Elsevier Science Ltd, 2021, 0301-4797
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10511 Environmental sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 8.910
RIV identification code
RIV/00216224:14310/21:00120898
Organization unit
Faculty of Science
UT WoS
000613566900002
Keywords in English
Waste incineration residues; Artificial metal ore; Bioleaching; Metal recovery; Iron- and sulfur-oxidizing acidophiles
Tags
Tags
International impact, Reviewed
Změněno: 17/2/2023 22:37, Mgr. Jiří Kučera, Ph.D.
Abstract
V originále
Hazardous waste disposal via incineration generates a substantial amount of ashes and slags which pose an environmental risk due to their toxicity. Currently, these residues are deposited in landfills with loss of potentially recyclable raw material. In this study, the use of acidophilic bioleaching bacteria (Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans, and Leptospirillum ferrooxidans) as an environmentally friendly, efficient strategy for the recovery of valuable metals from incineration residues was investigated. Zinc, Cobalt, Copper, and Manganese from three different incineration residues were bio-extracted up to 100% using A. ferrooxidans under ferrous iron oxidation. The other metals showed lower leaching efficiencies based on the type of culture used. Sulfur-oxidizing cultures A. ferrooxidans and A. thiooxidans, containing sulfur as the sole substrate, expressed a significantly lower leaching efficiency (up to 50%). According to ICP-MS, ashes and slags contained Fe, Zn, Cu, Mn, Cr, Cd, and Ni in economically attractive concentrations between 0.2 and 75 mg g-1. Compared to conventional hydrometallurgical and pyrometallurgical processes, our biological approach provides many advantages such as: the use of a limited amount of used strong acids (H2SO4 or HCl), recycling operations at lower temperatures (~30 °C) and no emission of toxic gases during combustion (i.e., dioxins and furans).
Links
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