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Effect of cellular peptides of Microcystis aeruginosa on granular activated carbon adsorption of herbicides
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SYSNO ASEP 0378898 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Effect of cellular peptides of Microcystis aeruginosa on granular activated carbon adsorption of herbicides Author(s) Kopecká, Ivana (UH-J) SAI, RID, ORCID
Šafaříková, Jana (UH-J) RID
Pivokonský, Martin (UH-J) SAI, ORCID, RID
Hnaťuková, Petra (UH-J) RID, SAI, ORCIDSource Title Proceedings of the 6th IWA International Conference for Young Water Professionals. - Budapest : IWA, 2012 Pages iwa-9903 Number of pages 8 s. Publication form CD-ROM - CD-ROM Action IWA International Conference for Young Water Professionals /6./ (IWA YWPC 2012) Event date 10.07.2012-13.07.2012 VEvent location Budapest Country HU - Hungary Event type WRD Language eng - English Country HU - Hungary Keywords activated carbon ; adsorption ; cellular peptides ; herbicides ; Microcystis aeruginosa Subject RIV BK - Fluid Dynamics R&D Projects GAP105/11/0247 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20600510 - UH-J (2005-2011) Annotation This study is aimed at the adsorption of organic micropollutants onto granular activated carbon (GAC) and the effect of cellular organic matter (COM) produced by Microcystis aeruginosa on this process. Adsorption experiments were performed for two herbicides with distinct chemical structure (alachlor and terbuthylazine) and two types of GAC with different surface charge (Norit 1240 and Filtrasorb 400). Both adsorbents were used fresh and preloaded with COM peptides of molecular weight < 10 kDa at pH 5 and pH 8.5. It was found that the adsorption of COM peptides was higher at pH 5 compared to pH 8.5. Adsorption of ALA and TBA onto preloaded carbons was lower than adsorption onto fresh carbons. Significantly lower efficiency of ALA and TBA adsorption was observed at pH 5, which corresponded to greater adsorption of COM peptides at acidic pH. The peptides of MW 700, 900, 1300 and 1700 Da were identified as the COM components responsible for competition with herbicides. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2013
Number of the records: 1