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Coagulation/flocculation of organic matter in water treatment
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SYSNO ASEP 0535785 Document Type A - Abstract R&D Document Type O - Ostatní Title Coagulation/flocculation of organic matter in water treatment Author(s) Filipenská, Monika (UH-J) ORCID, RID
Pivokonský, Martin (UH-J) SAI, ORCID, RIDSource Title , 2018 Number of pages 3 s. Publication form Medium - C Action UK-IWA Young Water Professionals Conference /19./ Event date 16.04.2018 - 18.04.2018 VEvent location Cranfield Country GB - United Kingdom Event type WRD Language eng - English Country GB - United Kingdom Keywords AOM (algal organic matter) ; cyanobacteria ; coagulation ; aggregate structure ; water treatment Subject RIV DJ - Water Pollution ; Quality OECD category Environmental sciences (social aspects to be 5.7) R&D Projects GA18-05007S GA ČR - Czech Science Foundation (CSF) Institutional support UH-J - RVO:67985874 Annotation On the contrary with effect of hydrodynamic conditions on the properties of formed aggregates (Jarvis et al., 2005), the effect of the type of impurity (humic matter, AOM, clay minerals etc.), impurity properties (size of molecules, functional groups, charge density, hydrophobicity etc.) and mutual interaction between different types of impurities and coagulant has been quite overlooked so far. Our previous work (Safarikova et al., 2013) showed that a presence of AOM (or especially Cellular Organic Matter - Proteins, COM) fundamentally influences the coagulation efficiency due to AOM/protein-kaolin interactions and thus, we can assume/believe that characteristics of impurities and their interactions have just as significant effect on aggregate properties as hydrodynamics. Therefore, this work has been focused on the influence of kaolinite particles (that represent turbidity) and COM of cyanobacteria Microcystis aeruginosa on size, structure and shape of aggregates formed by coagulation with two conventional coagulants (ferric and aluminium sulphate). At first, kaolinite and COM were used separately and then simultaneously and they were coagulated under different shear rates. Thus, the effect of single impurities and their mutual interaction on the aggregate properties could be compared. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2021
Number of the records: 1