University of Belgrade - Faculty of Agriculture
AgroSpace - Faculty of Agriculture Repository
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   AgroSpace
  • Poljoprivredni fakultet
  • Radovi istraživača / Researchers’ publications
  • View Item
  •   AgroSpace
  • Poljoprivredni fakultet
  • Radovi istraživača / Researchers’ publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Determination of crystalline structure of calcium carbonate obtained from drinking water

Određivanje kristalne strukture kalcijum-karbonata dobijenog iz vode za piće

No Thumbnail
Authors
Rajković, Miloš
Lačnjevac, Uroš Č.
Baščarević, Zvezdana
Rajković, Teodora M.
Tošković, Dragan V.
Stanojević, Dušan D.
Article (Published version)
Metadata
Show full item record
Abstract
Sample of scale which taken from house boiler is examined. This scale is made by warming drinking water from water-supply system of the -city of Belgrade - New Belgrade. Examinations on atomic absorption spectrophotometer (AAS) showed that there was mostly calcium, like CaO, for 48.90 % of mass which means calculated on contents CaCO3 takes 87.32 % of mass. Research on diffraction meter showed that scale is composed of CaCO3 (in % of mass) (85.25%), MgCO3 (11.05%), FeCO3 (1.90%) and MnCO3 (1.80%). It was also proved that scale is mixture of 66.92 % Mg calcite and 33.07 % aragonite. This structure is result of fact that Mg calcite and aragonite are become in quiet conditions of sedimentation of half shut skin-deep water surrounding on temperature between 60 and 100°C (nearest about 80°C) and low pressure.
Ispitivan je uzorak kamenca koji je uzet sa kućnog bojlera nastao zagrevanjem vode za piće koja se nalazi u vodovodnoj mreži grada Beograda - Novi Beograd (blokovi). Ispitivanja na atomskom apsorpcionom spektrofotometru ukazala su da se nalazi dominantno kalcijum, kao CaO i to 48,90%, što preračunato na sadržaj CaCO3 iznosi 87,32%. Snimanja na difraktometru ukazala su da se kamenac sastoji od CaCO3 (85,25%), MgCO3 (11,05%), FeCO3 (1,90%) i MnCO3 (1,80%). Takođe je dokazano da je kamenac mešavina koja se sastoji od 66,92 % kalcita i 33,07% aragonita. Ovakav sastav posledica je činjenice da su kalcit i aragonit nastali u mirnijim uslovima sedimentacije u poluzatvorenoj plitkovodnoj sredini na temperaturi između 60 i 100°C (najbliže oko 80°C) i pri niskom pritisku.
Keywords:
drinking water / scale / scanning electron microscope (SEM) / X-ray diffraction analysis / atomic absorption spectrophotometer (AAS) / voda za piće / kamenac / skenirajući elektronski mikroskop / rendgenska difrakciona analiza / atomski apsorpcioni spektrofotometar (AAS)
Source:
Zaštita materijala, 2008, 49, 2, 43-50
Publisher:
  • Inženjersko društvo za koroziju, Beograd
Funding / projects:
  • Nove metode i tehnike za separaciju i specijaciju hemijskih elemenata u tragovima, organskih supstanci i radionuklida i identifikaciju njihovih izvora (RS-142039)

ISSN: 0351-9465

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_agrospace_1679
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/1679
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Poljoprivredni fakultet

DSpace software copyright © 2002-2015  DuraSpace
About the AgroSpace Repository | Send Feedback

re3dataOpenAIRERCUB
 

 

All of DSpaceCommunitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About the AgroSpace Repository | Send Feedback

re3dataOpenAIRERCUB