Počet záznamů: 1
Effect of cellular peptides of Microcystis aeruginosa on granular activated carbon adsorption of herbicides
- 1.
SYSNO ASEP 0378898 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Effect of cellular peptides of Microcystis aeruginosa on granular activated carbon adsorption of herbicides Tvůrce(i) 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, ORCIDZdroj.dok. Proceedings of the 6th IWA International Conference for Young Water Professionals. - Budapest : IWA, 2012 Rozsah stran iwa-9903 Poč.str. 8 s. Forma vydání CD-ROM - CD-ROM Akce IWA International Conference for Young Water Professionals /6./ (IWA YWPC 2012) Datum konání 10.07.2012-13.07.2012 Místo konání Budapest Země HU - Maďarsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. HU - Maďarsko Klíč. slova activated carbon ; adsorption ; cellular peptides ; herbicides ; Microcystis aeruginosa Vědní obor RIV BK - Mechanika tekutin CEP GAP105/11/0247 GA ČR - Grantová agentura ČR CEZ AV0Z20600510 - UH-J (2005-2011) Anotace 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. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2013
Počet záznamů: 1