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How algal organic matter affects coagulation of other impurities present in surface waters
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SYSNO ASEP 0489943 Druh ASEP A - Abstrakt Zařazení RIV O - Ostatní Název How algal organic matter affects coagulation of other impurities present in surface waters Tvůrce(i) Barešová, Magdalena (UH-J) RID, ORCID, SAI
Načeradská, Jana (UH-J) SAI, ORCID, RID
Novotná, Kateřina (UH-J) SAI, ORCID, RID
Pivokonská, Lenka (UH-J) SAI, ORCID, RID
Pivokonský, Martin (UH-J) SAI, ORCID, RIDZdroj.dok. , 2018 Poč.str. 3 s. Forma vydání Online - E Akce UK-IWA Young Water Professionals Conference /19./ Datum konání 16.04.2018 - 18.04.2018 Místo konání Cranfield Země GB - Velká Británie Typ akce WRD Jazyk dok. eng - angličtina Klíč. slova algal organic matter ; coagulation ; cyanobacterial cells ; humic substances ; kaolin Vědní obor RIV DJ - Znečištění a kontrola vody Obor OECD Environmental sciences (social aspects to be 5.7) CEP GA18-14445S GA ČR - Grantová agentura ČR Institucionální podpora UH-J - RVO:67985874 Anotace Drinking water treatment (DWT) is facing an adverse impact of algae especially when they extensively decay and release cellular organic matter (COM). Algal organic matter (AOM) has been usually reported to interfere with coagulation that seems to be a cost-effective prerequisite for the efficient performance of all down-stream processes (Henderson et al., 2010). Despite low treatability of AOM, owing to its variable features AOM exhibits both favourable and adverse effects on the removal of other impurities (Bernhardt et al., 1985). Research into the impact of AOM on coagulation of other particles or molecules has preferably dealt with coagulation of algal cells in the presence of extracellular organic matter released via metabolic activity into the culture media (Vandamme et al., 2012, Garzon-Sanabria et al., 2013) or as a drawback of pre-oxidation (Ma and Liu, 2002, Ma et al., 2012). What has not received much attention so far is coagulation of COM released after cell lysis, which may form a majority of dissolved natural organic matter contained in water sources (Henderson et al., 2008). As COM is not only difficult to coagulate, but also hinders coagulation of other substances, the study investigates the impact of COM derived from two common cyanobacterial species Microcystis aeruginosa and Merismopedia tenuissima on removability of other impurities naturally occurring in surface waters: kaolin, humic substances (HS) and cyanobacterial cells of M. tenuissima by means of coagulation/flocculation as the essential and simultaneously most vulnerable step in the overall solid-liquid separation scheme in DWT. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2021
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