Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/2359
Título: Membrane-based treatment for tanning wastewaters 
Autor: Catarino, Justina
Mendonça, E.
Picado, Ana
Lança, Ana
Silva, Luís Manuel
Pinho, Maria
Palavras-chave: Tanning wastewaters
Data: 2013
Editora: ICE Publishing
Citação: Catarino, J.; Mendonça, E.; Picado, A.; Lança, A.; Silva, L.; Pinho, M.N. Membrane-based treatment for tanning wastewaters. In: Journal of Environmental Engineering and Science, 2013, Vol. 8, nº 1, p. 69–75
Resumo: Tanning wastewater was subjected to different unit operations to select the best treatment sequences. Textile membrane filtration (TMF), microfiltration (MF), and ultrafiltration (UF) were complemented by screening, flocculation or flotation operations. The general chemical characterization determined that the wastewater had a high organic load. The ecotoxicological study classified the wastewater as highly ecotoxic. The sequence of screening–TMF – UF was found to be the optimal treatment for wastewaters of the first and second soaking stages, while the sequence of screening – TMF –flotation –UF proved to be adequate for the liming wastewater concerning productivity and water quality. Larger pore sizes MF membrane or higher molecular weight cut off (MWCO) UF membranes with higher permeability to pure water showed lower permeation fluxes for tanning wastewater. After membrane treatments, a decrease in the ecotoxicity was measured. The use of membrane treatment technology showed to be promising in removing organic pollutants and allowing the reuse of water and chemicals in the process.
URI: http://hdl.handle.net/10400.9/2359
ISSN: 1496-256X
Versão do Editor: http://dx.doi.org/10.1680/jees.2013.0007
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