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.
Ključne reči:
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)
TY - JOUR
AU - Rajković, Miloš
AU - Lačnjevac, Uroš Č.
AU - Baščarević, Zvezdana
AU - Rajković, Teodora M.
AU - Tošković, Dragan V.
AU - Stanojević, Dušan D.
PY - 2008
UR - http://aspace.agrif.bg.ac.rs/handle/123456789/1679
AB - 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.
AB - 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.
PB - Inženjersko društvo za koroziju, Beograd
T2 - Zaštita materijala
T1 - Determination of crystalline structure of calcium carbonate obtained from drinking water
T1 - Određivanje kristalne strukture kalcijum-karbonata dobijenog iz vode za piće
EP - 50
IS - 2
SP - 43
VL - 49
UR - https://hdl.handle.net/21.15107/rcub_agrospace_1679
ER -
@article{
author = "Rajković, Miloš and Lačnjevac, Uroš Č. and Baščarević, Zvezdana and Rajković, Teodora M. and Tošković, Dragan V. and Stanojević, Dušan D.",
year = "2008",
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.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Determination of crystalline structure of calcium carbonate obtained from drinking water, Određivanje kristalne strukture kalcijum-karbonata dobijenog iz vode za piće",
pages = "50-43",
number = "2",
volume = "49",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1679"
}
Rajković, M., Lačnjevac, U. Č., Baščarević, Z., Rajković, T. M., Tošković, D. V.,& Stanojević, D. D.. (2008). Determination of crystalline structure of calcium carbonate obtained from drinking water. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 49(2), 43-50.
https://hdl.handle.net/21.15107/rcub_agrospace_1679
Rajković M, Lačnjevac UČ, Baščarević Z, Rajković TM, Tošković DV, Stanojević DD. Determination of crystalline structure of calcium carbonate obtained from drinking water. in Zaštita materijala. 2008;49(2):43-50.
https://hdl.handle.net/21.15107/rcub_agrospace_1679 .
Rajković, Miloš, Lačnjevac, Uroš Č., Baščarević, Zvezdana, Rajković, Teodora M., Tošković, Dragan V., Stanojević, Dušan D., "Determination of crystalline structure of calcium carbonate obtained from drinking water" in Zaštita materijala, 49, no. 2 (2008):43-50,
https://hdl.handle.net/21.15107/rcub_agrospace_1679 .
