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1、ISSN1063455X,JournalofWaterChemistryandTechnology,2012,Vol.34,No.2,pp.117–123.©AllertonPress,Inc.,2012.OriginalRussianText©N.A.Klimenko,E.A.SamsoniTodorova,L.A.Savchina,T.P.Chekhovskaya,I.N.Lavrenchuk,T.N.Zasyad’ko,2012,publishedinKhimiyaiTekhnologiyaVody,2012,Vol.34,No.2,pp
2、.195–205.NATURALWATERSSeasonalFluctuationsintheContentofDifferentFormsofOrganicCarbonandTheirChangesinWaterTreatmentProcessesN.A.Klimenko,E.A.SamsoniTodorova,L.A.Savchina,T.P.Chekhovskaya,I.N.Lavrenchuk,andT.N.Zasyad’koDumanskiiInstituteofColloidChemistryandWaterChemistry,NASo
3、fUkraine,KievReceivedJune23,2011Abstract—Wehaveassessedthecontentofdifferentformsoforganiccarbon(total,bioaccessible,andassimilated)inthewateroftheDnieperriverintheareaofthewaterintakeoftheDnieperwaterstationandinthewaterafteralltreatmentstagesused.Thearticlehasinvestigatedseas
4、onalchangesinthecontentofdifferentformsoforganiccarbonandtheimpactofwatertreatmentontheseindicators.DOI:10.3103/S1063455X12020087Keywords:assimilatedorganiccarbon,bioaccessibleorganiccarbon,totalorganiccarbon,naturalorganiccompounds.INTRODUCTIONNaturalwaterinthebasinoftheDniepe
5、rRiverischaracterizedbyahighcontentofnaturalorganiccompounds(NOC)substantiallyaffecting,inwatertreatment,thequalityofdrinkingwaterobtained.SinceNOCareasubstrateensuringvitalactivitiesofmicroorganisms,theirpresenceindefiniteconcentrationsdeterminesbiologicalstabilityorinstabil
6、ityofdrinkingwater.Waterbiologicalstabilityisastatewherebytherearenoconditionsforreproductionofcoliformandheterotrophicbacteria[1]and,accordingly,secondarywaterpollution.Intransportationandstorageofwatertherepeatedgrowthofmicroorganismsmayresultinthedeteriorationofbacterialqual
7、ities,taste,andgustofthewater,increasescorrosionandpromotesthegrowthofinvertebratehydrobiontsinthesystem[2].Themainfactordeterminingbiologicalstabilityofthewateristhepresenceinitofbiologicallyaccessibleorganiccarbon(BAOC).BAOCisidentifiedasafractionofsolubleorganiccarbon,whichm
8、aybemineralizedbyheterotrophicmicroorganisms.Apartfrom
