LCA of heavy metals leaching from landfilled sewage sludge ash

Quantities of sewage sludge that are thermally treated (mostly incinerated) are increasing, resulting in growing quantities of sewage sludge ash (SSA) which also requires further management. Despite its potential as a resource, it is still largely landfilled. Considering the presence of potentially...

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Autores principales: Domagoj Nakić, Dražen Vouk, Mario Šiljeg, Anđelina Bubalo
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Lenguaje:EN
Publicado: Vilnius Gediminas Technical University 2021
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Acceso en línea:https://doaj.org/article/f2dcd8b08b1b4644b7bb547499829340
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spelling oai:doaj.org-article:f2dcd8b08b1b4644b7bb5474998293402021-11-11T14:02:43ZLCA of heavy metals leaching from landfilled sewage sludge ash1648-68971822-419910.3846/jeelm.2021.15594https://doaj.org/article/f2dcd8b08b1b4644b7bb5474998293402021-10-01T00:00:00Zhttps://journals.vgtu.lt/index.php/JEELM/article/view/15594https://doaj.org/toc/1648-6897https://doaj.org/toc/1822-4199Quantities of sewage sludge that are thermally treated (mostly incinerated) are increasing, resulting in growing quantities of sewage sludge ash (SSA) which also requires further management. Despite its potential as a resource, it is still largely landfilled. Considering the presence of potentially toxic and hazardous heavy metals in SSA, this paper analyzes how the change in the leaching concentrations of the selected heavy metals from landfilled SSA impacts the environment (air, water, and soil) by the means of LCA. When considering human toxicity potential as impact category, dominant impacts were due to emissions into the air, primarily caused by leaching of selenium and somewhat less cadmium, mercury and nickel. Mercury had a dominant impact when considering the terrestrial ecotoxicity potential impact. In the SSAs obtained from Croatian sludge, molybdenum leaching, along with selenium and mercury, showed a dominant impact. Therefore, due to the high variability of trace elements, detailed analysis of different SSAs is needed.Domagoj NakićDražen VoukMario ŠiljegAnđelina BubaloVilnius Gediminas Technical Universityarticleheavy metalslandfillslcaleachingsewage sludge ashEnvironmental engineeringTA170-171ENJournal of Environmental Engineering and Landscape Management, Vol 29, Iss 3, Pp 359-367 (2021)
institution DOAJ
collection DOAJ
language EN
topic heavy metals
landfills
lca
leaching
sewage sludge ash
Environmental engineering
TA170-171
spellingShingle heavy metals
landfills
lca
leaching
sewage sludge ash
Environmental engineering
TA170-171
Domagoj Nakić
Dražen Vouk
Mario Šiljeg
Anđelina Bubalo
LCA of heavy metals leaching from landfilled sewage sludge ash
description Quantities of sewage sludge that are thermally treated (mostly incinerated) are increasing, resulting in growing quantities of sewage sludge ash (SSA) which also requires further management. Despite its potential as a resource, it is still largely landfilled. Considering the presence of potentially toxic and hazardous heavy metals in SSA, this paper analyzes how the change in the leaching concentrations of the selected heavy metals from landfilled SSA impacts the environment (air, water, and soil) by the means of LCA. When considering human toxicity potential as impact category, dominant impacts were due to emissions into the air, primarily caused by leaching of selenium and somewhat less cadmium, mercury and nickel. Mercury had a dominant impact when considering the terrestrial ecotoxicity potential impact. In the SSAs obtained from Croatian sludge, molybdenum leaching, along with selenium and mercury, showed a dominant impact. Therefore, due to the high variability of trace elements, detailed analysis of different SSAs is needed.
format article
author Domagoj Nakić
Dražen Vouk
Mario Šiljeg
Anđelina Bubalo
author_facet Domagoj Nakić
Dražen Vouk
Mario Šiljeg
Anđelina Bubalo
author_sort Domagoj Nakić
title LCA of heavy metals leaching from landfilled sewage sludge ash
title_short LCA of heavy metals leaching from landfilled sewage sludge ash
title_full LCA of heavy metals leaching from landfilled sewage sludge ash
title_fullStr LCA of heavy metals leaching from landfilled sewage sludge ash
title_full_unstemmed LCA of heavy metals leaching from landfilled sewage sludge ash
title_sort lca of heavy metals leaching from landfilled sewage sludge ash
publisher Vilnius Gediminas Technical University
publishDate 2021
url https://doaj.org/article/f2dcd8b08b1b4644b7bb547499829340
work_keys_str_mv AT domagojnakic lcaofheavymetalsleachingfromlandfilledsewagesludgeash
AT drazenvouk lcaofheavymetalsleachingfromlandfilledsewagesludgeash
AT mariosiljeg lcaofheavymetalsleachingfromlandfilledsewagesludgeash
AT anđelinabubalo lcaofheavymetalsleachingfromlandfilledsewagesludgeash
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