Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/54968

TitleEco-friendly process for the removal of Pb (II), Ni (II) and Zn (II) using different adsorbents: sepiolite and modified cedar
Author(s)Lago, A.
Rocha, Verónica
Tavares, Teresa
Issue date6-Jul-2017
CitationLago, A.; Rocha, Verónica; Tavares, Teresa, Eco-friendly process for the removal of Pb (II), Ni (II) and Zn (II) using different adsorbents: sepiolite and modified cedar. Book of Abstracts of CEB Annual Meeting 2017. Braga, 6 July, 77, 2017. ISBN: 978-989-97478-8-3
Abstract(s)[Excerpt] Heavy metal contamination in groundwater and sediments is one of the most relevant threats to environmental quality and human health. Their presence in the aquatic environment has attracted global attention due to their toxicity, persistence in nature, non-biodegradability and ability to bio-accumulate in food chains. The traditional treatment methods for their removal have been used but chemical methods are often restricted due to the technical or economic restraints. Various biomaterials have been used to entrap those ions from water and wastewater such as clays, zeolites, industrial and/or agriculture wastes, becoming a good alternative to industrial wastewater treatment [1, 2]. The capacity of natural sepiolite (clay) and modified cedar (wood) sawdust for heavy metals adsorption, lead (Pb), nickel (Ni) and zinc (Zn), has been assessed using a batch method. Natural sepiolite was supplied by TOLSA and cedar was obtained from Morocco. Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS) was used to characterize the morphology and chemical composition of both adsorbents. Cedar was subjected to an alkaline chemical pre-activation with of 0.2 M solution of potassium hydroxide, as suggested by literature. [...]
TypeAbstract
DescriptionBook of Abstracts of CEB Annual Meeting 2017
URIhttp://hdl.handle.net/1822/54968
ISBN978-989-97478-8-3
Publisher versionhttps://www.ceb.uminho.pt/Events/Details/3180
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Resumos em Livros de Atas / Abstracts in Proceedings

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