Produção Nacional
Color removal by coagulation, flocculation and sedimentation from water containing humic substances with different apparent molecular sizes
2007; UWA Publishing; Volume: 56; Issue: 5 Linguagem: Inglês
10.2166/aqua.2007.009
ISSN1365-2087
AutoresSandro Xavier de Campos, Eduardo Ribeiro de Azevêdo, Tito José Bonagamba, Eny María Vieira, Luiz Di Bernardo,
Tópico(s)Aquatic Ecosystems and Phytoplankton Dynamics
ResumoResearch Article| August 01 2007 Color removal by coagulation, flocculation and sedimentation from water containing humic substances with different apparent molecular sizes Sandro X. Campos; Sandro X. Campos 1State University of Ponta Grossa, UEPG, Ponta Grossa, PR Brazil Search for other works by this author on: This Site PubMed Google Scholar Eduardo Ribeiro de Azevedo; Eduardo Ribeiro de Azevedo 2Institute of Physics of São Carlos, University of São Paulo, São Carlos, Brazil Search for other works by this author on: This Site PubMed Google Scholar Tito J. Bonagamba; Tito J. Bonagamba 2Institute of Physics of São Carlos, University of São Paulo, São Carlos, Brazil Search for other works by this author on: This Site PubMed Google Scholar Eny M. Vieira; Eny M. Vieira 3Institute of Chemistry of São Carlos, University of São Paulo, São Carlos, Brazil Search for other works by this author on: This Site PubMed Google Scholar Luiz Di Bernardo Luiz Di Bernardo 4Department of Hydraulics and Sanitation, School of Engineering at São Carlos, University of São Paulo, Brazil, Av. Trabalhador São-Carlense, #400, 13 566-570, São Carlos, SP Brazil Tel.: 16 3373 95 28; Fax: 16 3373 95 50; E-mail: bernardo@sc.usp.br Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2007) 56 (5): 327–333. https://doi.org/10.2166/aqua.2007.009 Article history Received: January 15 2007 Accepted: May 07 2007 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Sandro X. Campos, Eduardo Ribeiro de Azevedo, Tito J. Bonagamba, Eny M. Vieira, Luiz Di Bernardo; Color removal by coagulation, flocculation and sedimentation from water containing humic substances with different apparent molecular sizes. Journal of Water Supply: Research and Technology-Aqua 1 August 2007; 56 (5): 327–333. doi: https://doi.org/10.2166/aqua.2007.009 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Samples of water with true color of approximately 100 HU, prepared with humic substances of different molecular sizes (filtered through a 0.45 μm membrane with weights in the range of >100 kDa; 100 to 30 kDa; <30 kDa) were studied in order to verify the influence of the apparent molecular size on the performance of coagulation, flocculation and sedimentation of flocs formed using aluminum sulfate as coagulant. To achieve the same degree of color removal, the water samples with higher apparent molecular size fractions required lower dosages of aluminum sulfate (approximately 50% of those necessary for the water prepared with the fraction of the smallest molecules). The results of nuclear magnetic resonance (NMR) and Infrared Spectroscopy (FTIR) studies demonstrate that, under the same conditions, the higher the number of oxygen-containing functional groups, the lower the level of color removal becomes. apparent molecular size of humic substances, coagulation, color, flocculation, sedimentation This content is only available as a PDF. © IWA Publishing 2007 You do not currently have access to this content.
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