Počet záznamů: 1

Adsorption of low molecular weight peptides produced by Microcystis aeruginosa onto activated carbon

SYSNO ASEP	0453690
Druh ASEP	C - Konferenční příspěvek (mezinárodní konf.)
Zařazení RIV	Záznam nebyl označen do RIV
Název	Adsorption of low molecular weight peptides produced by Microcystis aeruginosa onto activated carbon
Tvůrce(i)	Čermáková, Lenka (UH-J)_{RID, ORCID, SAI} Pivokonská, Lenka (UH-J)_{SAI, ORCID, RID} Pivokonský, Martin (UH-J)_{SAI, ORCID, RID}
Vyd. údaje	2015
Zdroj.dok.	Proceedings of the 6th IWA Specialist Conference on Natural Organic Matter in Drinking Water
Forma vydání	Tištěná - P
Akce	IWA Specialist Conference on Natural Organic Matter in Drinking Water
Datum konání	07.09.2015-10.09.2015
Místo konání	Malmö
Země	SE - Švédsko
Typ akce	WRD
Jazyk dok.	eng - angličtina
Země vyd.	SE - Švédsko
Klíč. slova	algal organic matter ; granular activated carbon ; molecular weight distribution
Vědní obor RIV	BK - Mechanika tekutin
Institucionální podpora	UH-J - RVO:67985874
Anotace	The aim of this study was to investigate the effectiveness and mechanisms of adsorption of three peptides with molecular weights (MWs) of 2, 4 and 6 kDa produced by cyanobacterium Microcystis aeruginosa. The study showed that adsorption of peptides onto activated carbon increases with decreasing pH value. The highest adsorption capacity was reached at pH 5 for Picabiol 12x40 due to a high portion of mesopores in its structure and the electrostatic attraction between functionalities of the carbon and the peptides. It was demonstrated that the increase in ionic strength can enhance the adsorption of peptides by screening of the repulsive forces or by strengthening of the attractive ones, depending on the type of carbon used and pH applied. Formation of H-bonds and electrostatic interactions played an essential role in the adsorption of peptides onto activated carbon. The effectiveness of peptide adsorption increased with a decrease in MWs of peptides.
Pracoviště	Ústav pro hydrodynamiku
Kontakt	Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
Rok sběru	2016

Počet záznamů: 1