Number of the records: 1

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

SYSNO ASEP	0453690
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	The record was not marked in the RIV
Title	Adsorption of low molecular weight peptides produced by Microcystis aeruginosa onto activated carbon
Author(s)	Čermáková, Lenka (UH-J)_{RID, ORCID, SAI} Pivokonská, Lenka (UH-J)_{SAI, ORCID, RID} Pivokonský, Martin (UH-J)_{SAI, ORCID, RID}
Issue data	2015
Source Title	Proceedings of the 6th IWA Specialist Conference on Natural Organic Matter in Drinking Water
Publication form	Print - P
Action	IWA Specialist Conference on Natural Organic Matter in Drinking Water
Event date	07.09.2015-10.09.2015
VEvent location	Malmö
Country	SE - Sweden
Event type	WRD
Language	eng - English
Country	SE - Sweden
Keywords	algal organic matter ; granular activated carbon ; molecular weight distribution
Subject RIV	BK - Fluid Dynamics
Institutional support	UH-J - RVO:67985874
Annotation	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.
Workplace	Institute of Hydrodynamics
Contact	Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
Year of Publishing	2016

Number of the records: 1