2026-05-20T09:00:54Z
https://www.peertechzpublications.org/oai-pmh
oai:www.peertechzpublications.org:10.17352/aest.000038
2021-06-26
PTZ.AEST:VOL5
Environmental impact assessment of aluminium production using the life cycle assessment tool and multi-criteria analysis
Javad Abdollahi Nima Emrani Benyamin Chahkandi Ali Montazeri Reza AghlmandMohammad Gheibi<p>Air pollution is one of the most important problems of urban life. Since
a large proportion of airborne pollutants originate from industry, it
is important to address emission removal systems. One of the growing
industries is the production of aluminum, which requires attention and
planning since emits dangerous pollutants such as particulate matter, SO<sub>2</sub>, NO<sub>x</sub>,
dioxins, furans, mercury chloride, and fluorine compounds. The present
study investigates the production life cycle of this metal and analyzes
the production of gaseous pollutants and particles in different
production units. Large amount of pollution is produced in the alumina
production and the aluminum electrolysis units, which in the best case,
for the production of one ton of final aluminum, Emit 1.07, 4.73, and
1.32 kg of particulate pollutants, sulfur dioxide, and nitrogen dioxide
respectively. In the next step, in the search of the optimal system for
controlling particulate pollutants, SO<sub>2</sub>, NO<sub>x</sub>
caused by aluminum production, by reviewing the research background and
related articles and books, ranked these systems using ELECTRE, TOPSIS
and SAW methods. Sedimentation chamber, internal separators, cyclones,
fabric filters, electrostatic precipitators, and wet collectors in
particle removal and condensation, absorption, adsorption, incineration,
and wet washing in SO<sub>2</sub> and NO<sub>x</sub> removal were
reviewed and compared. The results show the superiority of cyclones in
particle removal, wet washing system for removing SO<sub>2</sub>, and adsorption for removing NOX.</p>
Annals of Environmental Science and Toxicology - Peertechz Publications
2021-06-26
Research Article
https://doi.org/10.17352/aest.000038
en
Copyright © Javad Abdollahi et al.