Magnetic Sorbents Biomineralization on the Basis of Iron Sulphides
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F17%3A10237857" target="_blank" >RIV/61989100:27350/17:10237857 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/17:10237857
Result on the web
<a href="http://www.tandfonline.com/doi/abs/10.1080/09593330.2017.1369581?journalCode=tent20" target="_blank" >http://www.tandfonline.com/doi/abs/10.1080/09593330.2017.1369581?journalCode=tent20</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/09593330.2017.1369581" target="_blank" >10.1080/09593330.2017.1369581</a>
Alternative languages
Result language
angličtina
Original language name
Magnetic Sorbents Biomineralization on the Basis of Iron Sulphides
Original language description
Biomineralization means mineral formation under the influence of organisms. Sulphate-reducing bacteria (SRB) constitute an essential role of iron sulphide minerals precipitation. Their composition involves amorphous, non-stoichiometric or crystalline iron sulphides, weakly or strongly magnetic. Variation in environmental conditions can alter the reactive iron species within the mineral, potentially modifying their magnetic properties. Biogenic iron sulphide minerals can be used as heavy metals and toxic ions adsorbents in soil or water remediation. For these reasons, a series of laboratory-scale iron sulphide synthesis experiments with the aim to study the chemical composition, mineralogy and magnetic properties of iron sulphide precipitates were carried out using SRB under various cultivation mode and nutrient medium composition. Energy-dispersive X-ray analysis (EDX) showed formation of iron sulphides in all biogenic samples and iron phosphates in abiotic controls. Results of X-ray diffraction analysis (XRD) in biomineralized samples confirmed nanocrystalline greigite, mackinawite and sulphur alpha. Magnetic measurements showed that sample prepared by static cultivation without addition of fresh nutrient medium was the most magnetic, magnetic hysteresis of sample formed under semicontinuous mode without any nutrient supply was the lowest. Abiotic samples contained only vivianite and they did not prove any significant response to magnetic field.
Czech name
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Czech description
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Classification
Type
J<sub>ost</sub> - Miscellaneous article in a specialist periodical
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Technology
ISSN
0959-3330
e-ISSN
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Volume of the periodical
neuveden
Issue of the periodical within the volume
neuveden
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
1-10
UT code for WoS article
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EID of the result in the Scopus database
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