Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent
Mechanochemistry is a very interesting branch of chemistry for its potentiality in processes of environmental relevance. In this work, an innovative application has been proposed, namely to mechanochemically treat a blast furnace slag to be reused as a low-cost adsorbent. In particular, the adsorpti...
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2013-06-01
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Series: | Chemical Engineering Transactions |
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doaj-3d87a5a68a754915970e8c29fd2bd4322021-02-21T21:09:30ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162013-06-013210.3303/CET1332384Mechanochemical Processing of Blast Furnace Slag for its Reuse as AdsorbentS. AndiniF. MontagnaroL. SantoroG. AccardoR. CioffiF. ColangeloMechanochemistry is a very interesting branch of chemistry for its potentiality in processes of environmental relevance. In this work, an innovative application has been proposed, namely to mechanochemically treat a blast furnace slag to be reused as a low-cost adsorbent. In particular, the adsorptive properties of this industrial waste towards methylene blue present in aqueous solutions have been considered. To this end, the slag has been treated in a planetary mill at different charge ratios, rotational speeds and milling times, and then characterized by laser granulometry, porosimetric and XRD analyses. These investigations allowed to shed light on the interrelationships between milling conditions and slag physico-chemical characteristics, and to choose the most interesting samples to submit to the following adsorption equilibrium and kinetic tests. These runs have been conducted at different dye initial concentration and adsorption times, and results have been interpreted according to the previously-analyzed slag characteristics. Furthermore, adsorption data have been post-processed to give values for the equilibrium and kinetic constants, the removal efficiency and the characteristic adsorption times.https://www.cetjournal.it/index.php/cet/article/view/6778 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S. Andini F. Montagnaro L. Santoro G. Accardo R. Cioffi F. Colangelo |
spellingShingle |
S. Andini F. Montagnaro L. Santoro G. Accardo R. Cioffi F. Colangelo Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent Chemical Engineering Transactions |
author_facet |
S. Andini F. Montagnaro L. Santoro G. Accardo R. Cioffi F. Colangelo |
author_sort |
S. Andini |
title |
Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent |
title_short |
Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent |
title_full |
Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent |
title_fullStr |
Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent |
title_full_unstemmed |
Mechanochemical Processing of Blast Furnace Slag for its Reuse as Adsorbent |
title_sort |
mechanochemical processing of blast furnace slag for its reuse as adsorbent |
publisher |
AIDIC Servizi S.r.l. |
series |
Chemical Engineering Transactions |
issn |
2283-9216 |
publishDate |
2013-06-01 |
description |
Mechanochemistry is a very interesting branch of chemistry for its potentiality in processes of environmental relevance. In this work, an innovative application has been proposed, namely to mechanochemically treat a blast furnace slag to be reused as a low-cost adsorbent. In particular, the adsorptive properties of this industrial waste towards methylene blue present in aqueous solutions have been considered. To this end, the slag has been treated in a planetary mill at different charge ratios, rotational speeds and milling times, and then characterized by laser granulometry, porosimetric and XRD analyses. These investigations allowed to shed light on the interrelationships between milling conditions and slag physico-chemical characteristics, and to choose the most interesting samples to submit to the following adsorption equilibrium and kinetic tests. These runs have been conducted at different dye initial concentration and adsorption times, and results have been interpreted according to the previously-analyzed slag characteristics. Furthermore, adsorption data have been post-processed to give values for the equilibrium and kinetic constants, the removal efficiency and the characteristic adsorption times. |
url |
https://www.cetjournal.it/index.php/cet/article/view/6778 |
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