12 years of leaching of contaminants from Pb smelter slags: Geochemical/mineralogical controls and slag recycling potential

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10193740" target="_blank" >RIV/00216208:11310/14:10193740 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.apgeochem.2013.11.001" target="_blank" >http://dx.doi.org/10.1016/j.apgeochem.2013.11.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apgeochem.2013.11.001" target="_blank" >10.1016/j.apgeochem.2013.11.001</a>

Result language

angličtina

Original language name

12 years of leaching of contaminants from Pb smelter slags: Geochemical/mineralogical controls and slag recycling potential

Original language description

Lead slags from two different metallurgical technologies (primary slag from Pb-ore processing and secondary slag from car battery recycling) were submitted to 12-year batch leaching at a L/S ratio of 10 and the leaching data were compared with the previously obtained results from a {= 1-year leaching test. In the long-term, the Pb release is efficiently controlled by the precipitation of cerussite (PbCO3), Pb-phosphates and anglesite (PbSO4) and by sorption onto newly formed hydrous ferric oxides. In contrast, Zn is the most important contaminant that is continuously released from the primary slag and, after leaching for 12 years, its concentration exceeds more than 40x the regulatory limit value for hazardous wastes (200 mg/kg). For this reason, the recycling of primary slag for civil engineering purposes (concrete technology, gravel-like material) cannot be recommended, because of the long-term Zn leaching. In terms of the leaching of metals (Pb, Zn, Cu) and metalloids (As, Sb), the

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DD - Geochemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Geochemistry

ISSN

0883-2927

e-ISSN

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Volume of the periodical

40

Issue of the periodical within the volume

JANUARY

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

97-103

UT code for WoS article

000329206400011

EID of the result in the Scopus database

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