Study of water - extractable fractions from South Moravian lignite

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU110317" target="_blank" >RIV/00216305:26310/15:PU110317 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s12665-014-3671-1" target="_blank" >http://dx.doi.org/10.1007/s12665-014-3671-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12665-014-3671-1" target="_blank" >10.1007/s12665-014-3671-1</a>

Result language

angličtina

Original language name

Study of water - extractable fractions from South Moravian lignite

Original language description

Lignite can be applied directly in natural form on agricultural fields as a soil conditioner. However there is little information on leaching of risky compounds by its interaction with water. South Moravian lignite was therefore extracted with water at 25 C and 2.3% of water-soluble fractions were obtained from lignite corresponding to 0.3% of total organic carbon. All ten fractions form aromatic and aliphatic structures with oxygen containing functional groups such as carboxyl groups, alcohols, ethers, esters, and fractions can be characterized as fulvic-like and humic-like substances. According to the XPS spectra, the fractions contain two nitrogen forms, one of which is ascribed to pyrroles and the second is related to protonated amines or quaternary nitrogen. Analysis at molecular level showed that the fractions contain compounds such as benzene carboxylic acids and their derivatives, small aliphatic diacids, fatty acids and polyols. Most of the identified molecules reflect clearly the origin from microbial degradation.The differences between the individual fractions are negligible, especially after 21 days of extraction. From environmental points' of view, it seems that the identified compounds do not represent a toxic risk.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

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

Name of the periodical

ENVIRON EARTH SCI

ISSN

1866-6280

e-ISSN

1866-6299

Volume of the periodical

73

Issue of the periodical within the volume

7

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

3873-3885

UT code for WoS article

000351163300066

EID of the result in the Scopus database

2-s2.0-84924678294