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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

—

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Applied Geochemistry

ISSN

0883-2927

e-ISSN

—

Svazek periodika

40

Číslo periodika v rámci svazku

JANUARY

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

97-103

Kód UT WoS článku

000329206400011

EID výsledku v databázi Scopus

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