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Ramune Albrektiene, Mindaugas Rimeika, Ruta Grazeniene
Organic fractions and metal-organic complexes in the groundwater
| Conference Information: |
9th International Conference on Environmental
Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |
| Source: |
ICEE-2014 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
ISSN 2029-7092 online |
| ISBN: |
978-609-457-640-9 / 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
Natural organic matters are widely used in both surface and underground waters, which are prepared as drinking water. The organic
matter are divided into four fractions: very hydrophobic acids (VHA), slightly hydrophobic acids (SHA), hydrophilic charged (CHA) and
hydrophilic neutral (NEU). Organic matters are negatively charged so they form complexes with metals. For the determination of organic
fractions and metal organic complexes rapid fractionation technique is used. Researches were made in Nida and Preila (III group (open)),
Taujenai and Petronys (II group (semi-closed)) water well fields. After fractional studies were made it showed that 90 % of all organic
compounds composed of very hydrophobic acids (VHA) and slightly hydrophobic acids (SHA) which consist of a large molecular weight
compounds. Over 90 % of bivalent iron composed complex compounds with hydrophobic organic matters. Manganese does not entirely
complexes with organic compounds.
Keywords: ground water; natural organic matters; rapid fractionation.
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