Počet záznamů: 1

Effect of cellular peptides of Microcystis aeruginosa on granular activated carbon adsorption of herbicides

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, ORCID}
Zdroj.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