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Adsorption of cellular peptides of Microcystis aeruginosa and two herbicides onto activated carbon. Effect of surface charge and interactions
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SYSNO ASEP 0359739 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Adsorption of cellular peptides of Microcystis aeruginosa and two herbicides onto activated carbon. Effect of surface charge and interactions Author(s) Hnaťuková, Petra (UH-J) RID, SAI, ORCID
Kopecká, Ivana (UH-J) SAI, RID, ORCID
Pivokonský, Martin (UH-J) SAI, ORCID, RIDSource Title Water Research. - : Elsevier - ISSN 0043-1354
Roč. 45, č. 11 (2011), s. 3359-3368Number of pages 10 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords cellular organic matter ; granular activated carbon ; molecular weight distribution ; surface charge ; cyanobacterial peptides Subject RIV BK - Fluid Dynamics OECD category Environmental sciences (social aspects to be 5.7) R&D Projects IAA200600902 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GPP105/10/P515 GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access CEZ AV0Z20600510 - UH-J (2005-2011) UT WOS 000291499100010 EID SCOPUS 79955954440 DOI 10.1016/j.watres.2011.03.051 Annotation In this research, the adsorption of two herbicides, alachlor (ALA) and terbuthylazine (TBA), on granular activated carbon (GAC) in the presence of well-characterized peptide fraction of cellular organic matter (COM) produced by cyanobacterium Microcystis aeruginosa was studied. Two commercially available GACs were characterized using nitrogen gas adsorption and surface charge titrations. The COM peptides of molecular weight (MW) <10 kDa were isolated and characterized using MW fractionation technique and high-performance size exclusion chromatography (HPSEC). Electrostatic interactions and hydrogen bonding proved to be important mechanisms of COM peptides adsorption. The adsorption of ALA and TBA on granular activated carbon preloaded with COM peptides was influenced by solution pH. The majority of the competition between COM peptides and both herbicides was attributed to low molecular weight COM peptides with MW of 700, 900, 1300 and 1700 Da. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2012 Electronic address https://www.sciencedirect.com/science/article/pii/S0043135411001692?via%3Dihub
Number of the records: 1