Heavy metals in fine-grained fractions of E-waste

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237676" target="_blank" >RIV/61989100:27360/17:10237676 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Heavy metals in fine-grained fractions of E-waste

Popis výsledku v původním jazyce

The concentration of heavy metals in the environment is gradually increasing, which has a negative impact on a number of living organisms, including humans. Particles of very small dimensions are particularly dangerous. Plants processing e-waste may be one of the sources of contamination. Samples of crushed parts of e-waste containing precious metals were separated by a vibration sieving machine into fractions ranging from 3 to 0.15 mm. For these fractions, contents of metals were determined by the ED-XRF method. It was found that the e-waste contained a number of heavy metals, and it is possible to establish also a certain connection between the content of individual elements and the granulometric class. Zinc content increased in the finest fraction with a size below 0.15 mm approx. ten times in comparison with a 3 mm thick fraction. Similarly, this difference is approx. 20 times higher for chromium, nickel and cadmium. The lead content in a fine fraction makes approx. 2 wt. %, which corresponds to approx. the 50-fold increase in comparison to the coarse fraction. The tin content also increases significantly even by 2 orders.

Název v anglickém jazyce

Heavy metals in fine-grained fractions of E-waste

Popis výsledku anglicky

The concentration of heavy metals in the environment is gradually increasing, which has a negative impact on a number of living organisms, including humans. Particles of very small dimensions are particularly dangerous. Plants processing e-waste may be one of the sources of contamination. Samples of crushed parts of e-waste containing precious metals were separated by a vibration sieving machine into fractions ranging from 3 to 0.15 mm. For these fractions, contents of metals were determined by the ED-XRF method. It was found that the e-waste contained a number of heavy metals, and it is possible to establish also a certain connection between the content of individual elements and the granulometric class. Zinc content increased in the finest fraction with a size below 0.15 mm approx. ten times in comparison with a 3 mm thick fraction. Similarly, this difference is approx. 20 times higher for chromium, nickel and cadmium. The lead content in a fine fraction makes approx. 2 wt. %, which corresponds to approx. the 50-fold increase in comparison to the coarse fraction. The tin content also increases significantly even by 2 orders.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Quo Vadis Recycling: 6th international conference : June 6th-9th 2017, High Tatras, Slovak Republic

ISBN

978-80-553-3170-6

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

8

Strana od-do

202-209

Název nakladatele

Technical University of Košice

Místo vydání

Košice

Místo konání akce

Vysoké Tatry

Datum konání akce

6. 6. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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