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@article{1717696,
author = {Kremser, Klemens and Thallner, Sophie and Strbik, Dorina and Spiess, Sabine and Kučera, Jiří and Vaculovič, Tomáš and Všianský, Dalibor and Haberbauer, Marianne and Mandl, Martin and Guebitz, Georg M.},
article_location = {London},
article_number = {February},
doi = {http://dx.doi.org/10.1016/j.jenvman.2020.111734},
keywords = {Waste incineration residues; Artificial metal ore; Bioleaching; Metal recovery; Iron- and sulfur-oxidizing acidophiles},
language = {eng},
issn = {0301-4797},
journal = {Journal of Environmental Management},
title = {Leachability of metals from waste incineration residues by iron- and sulfur-oxidizing bacteria},
url = {https://doi.org/10.1016/j.jenvman.2020.111734},
volume = {280},
year = {2021}
}
TY - JOUR
ID - 1717696
AU - Kremser, Klemens - Thallner, Sophie - Strbik, Dorina - Spiess, Sabine - Kučera, Jiří - Vaculovič, Tomáš - Všianský, Dalibor - Haberbauer, Marianne - Mandl, Martin - Guebitz, Georg M.
PY - 2021
TI - Leachability of metals from waste incineration residues by iron- and sulfur-oxidizing bacteria
JF - Journal of Environmental Management
VL - 280
IS - February
SP - "111734-1"-"111734-8"
EP - "111734-1"-"111734-8"
PB - Academic Press Ltd-Elsevier Science Ltd
SN - 03014797
KW - Waste incineration residues
KW - Artificial metal ore
KW - Bioleaching
KW - Metal recovery
KW - Iron- and sulfur-oxidizing acidophiles
UR - https://doi.org/10.1016/j.jenvman.2020.111734
L2 - https://doi.org/10.1016/j.jenvman.2020.111734
N2 - 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).
ER -
KREMSER, Klemens, Sophie THALLNER, Dorina STRBIK, Sabine SPIESS, Jiří KUČERA, Tomáš VACULOVIČ, Dalibor VŠIANSKÝ, Marianne HABERBAUER, Martin MANDL and Georg M. GUEBITZ. Leachability of metals from waste incineration residues by iron- and sulfur-oxidizing bacteria. \textit{Journal of Environmental Management}. London: Academic Press Ltd-Elsevier Science Ltd, 2021, vol.~280, February, p.~''111734-1''-''111734-8'', 8 pp. ISSN~0301-4797. Available from: https://dx.doi.org/10.1016/j.jenvman.2020.111734.
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