Detail publikace

Aggregation of humic an fulvic acids in diluted solutions

DRASTÍK, M. ČTVRTNÍČKOVÁ, A. ZMEŠKAL, O. KUČERÍK, J.

Originální název

Typ

kapitola v knize

Jazyk

angličtina

Originální abstrakt

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 only small 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.

Klíčová slova

Humic and fulvic acids, aggregation, IHSS, ultrasonic spectroscopy, fractal analysis

Autoři

DRASTÍK, M.; ČTVRTNÍČKOVÁ, A.; ZMEŠKAL, O.; KUČERÍK, J.

Rok RIV

2009

Vydáno

28. 10. 2009

Nakladatel

WSEAS Press

Místo

Řecko

ISBN

978-960-474-125-0

Kniha

ENERGY, ENVIRONMENT, ECOSYSTEMS, DEVELOPMENT and LANDSCAPE ARCHITECTURE

Edice

Energy and Environmental Engineering Series

Číslo edice

Strany od

163

Strany do

168

Strany počet

BibTex

@inbook{BUT55727,
  author="Martin {Drastík} and Anna {Uhrová} and Oldřich {Zmeškal} and Jiří {Kučerík}",
  title="Aggregation of humic an fulvic acids in diluted solutions",
  booktitle="ENERGY, ENVIRONMENT, ECOSYSTEMS, DEVELOPMENT and LANDSCAPE ARCHITECTURE",
  year="2009",
  publisher="WSEAS Press",
  address="Řecko",
  series="Energy and Environmental Engineering Series",
  edition="1",
  pages="163--168",
  isbn="978-960-474-125-0"
}