Aggregation of humic an fulvic acids in diluted solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F09%3APU83579" target="_blank" >RIV/00216305:26310/09:PU83579 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Aggregation of humic an fulvic acids in diluted solutions

Popis výsledku v původním jazyce

The aggregation of humic substances sodium salts was studied using high resolution ultrasonic spectroscopy. Results confirmed earlier statements about progressive aggregation of humic substances at concentration 0.001 g/L and revealed that there is onlysmall difference in behavior of humic and fulvic acids. Obtained dependences of increment of ultrasonic velocity were fitted by super-exponential function and correlation of obtained coefficients showed the importance of hydrophobic structures in interactions stabilizing humic supramolecular structures. In contrast, polar oxygen-containing groups were shown to have minor influence at lower concentrations. For further considerations the fractal analysis was used and revealed that around concentration 1 g/L, fractal dimension reached a constant value suggesting possible switch between mechanisms of humic substances aggregation.

Název v anglickém jazyce

Aggregation of humic an fulvic acids in diluted solutions

Popis výsledku anglicky

The aggregation of humic substances sodium salts was studied using high resolution ultrasonic spectroscopy. Results confirmed earlier statements about progressive aggregation of humic substances at concentration 0.001 g/L and revealed that there is onlysmall difference in behavior of humic and fulvic acids. Obtained dependences of increment of ultrasonic velocity were fitted by super-exponential function and correlation of obtained coefficients showed the importance of hydrophobic structures in interactions stabilizing humic supramolecular structures. In contrast, polar oxygen-containing groups were shown to have minor influence at lower concentrations. For further considerations the fractal analysis was used and revealed that around concentration 1 g/L, fractal dimension reached a constant value suggesting possible switch between mechanisms of humic substances aggregation.

Druh

C - Kapitola v odborné knize

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

ENERGY, ENVIRONMENT, ECOSYSTEMS, DEVELOPMENT and LANDSCAPE ARCHITECTURE

ISBN

978-960-474-125-0

Počet stran výsledku

6

Strana od-do

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Počet stran knihy

369

Název nakladatele

WSEAS Press

Místo vydání

Řecko

Kód UT WoS kapitoly

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