20.500.12556/DKUM-38519 ANALIZA NERAZTOPLJENIH SNOVI V PITNI VODI GOSPODINJSTEV THE ANALYSIS OF SUSPENDED SOLIDS IN HOUSEHOLDS' DRINKING WATER V diplomski nalogi smo analizirali črne neraztopljene delce, ki so se izločili iz pitne vode. Glede na literaturne navedbe bi se v vodi lahko nahajale spojine z železom ali manganom, ki bi se izločale skupaj z vodnim kamnom. Druga možnost je tvorba biofilma. Opravili smo fizikalno-kemijske analize vode ter mikroskopske analize in posneli IR spektre izločenih delcev iz vode. Rezultati fizikalno-kemijskih analiz so pokazali, da je voda trda ter ne vsebuje železovih in manganovih snovi. Iz IR spektrov smo določili prisotnost proteinov, ki so bistveni sestavni del celične stene bakterij, zato smo zaključili, da gre za izločanje vodnega kamna, obdanega s črnim biofilmom. The analyses of small black particles which precipitated from households’ drinking water were performed in diploma work. Due to the literature review, iron and manganesse compounds could precipitate from water or biofilm could be formed. Physico-chemical analyses of water as well as microscopic examination and IR spectras of precipitation were performed. Physico-chemical analyses showed that the water is quite hard, but it did not contain any iron or manganese compounds. IR spectra showed the presence of proteins in precipitation. Proteins are the major compound of bacterias’ cellular membrane. We can conclude that biofilm attached to the CaCO3 precipitated from water. pitna voda onesnaženje vode kovine v vodi vodni kamen IR spektrometrija bakterije biofilm Drinking water water pollution metals in water water scaling IR spectrometry bacteria biofilm true true false [V. Čižić] Slovenski jezik Angleški jezik Diplomsko delo 2012-09-28 10:13:37 2012-10-04 15:26:06 2022-04-26 11:37:17 2021-04-19 03:32:11 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.16.033(043.2) 16682774 URN:SI:UM:DK:VGZN3WAZ VS_Cizic_Valerija_2012.pdf VS_Cizic_Valerija_2012.pdf 1 8C1F619D321B935F0889F07302D27433 4b2758bf3c02884ce01b97e14b927645a6ca28d3662d80c4eb4647390cf3ac0a 186353f6-7c08-11eb-bb7a-00155d0001ca 20.500.12556/dkum/3c9bfacc-408d-4d1e-96ba-ce620a3f863f https://dk.um.si/Dokument.php?lang=slv&id=51502 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0