Abstract
The peculiarities of the Dnieper river water that contains natural organic compounds of allochthonous origin, in the composition of which fulvic acids with a molecular mass of about 1.0 kDa predominate, are investigated. It is established that the use of iron-containing coagulants in the process of purification of such water leads to its enrichment with iron compounds and a corresponding increase in its color intensity. Comparison of the effectiveness of aluminum and iron coagulants showed that both reagents lead to a stable decrease in Dnieper water coloration caused by humic acids. However, the use of iron(II) sulfate does not reduce water coloration caused by fulvic acids because of the formation of stable soluble hydroxofulvate complexes. It is shown that the redox system of Dnieper water is at the transition boundaries between Fe2+ and hydroxide Fe(OH)3 and between Mn2+ and oxides MnO2 and Mn2O3. The replacement of the standard chlorine agent with chlorine dioxide results in moving this boundary with the formation of finely dispersed flakes of iron hydroxide and particles of manganese oxides. As a result, the use of chlorine dioxide (ClO2) in doses of 0.2–1.25 mg/dm3 in the final stage of water purification leads to an increase in water coloration intensity, which can be successfully reduced by filtration. With an increase in the dose of ClO2, an inverse relationship is established between the dynamics of water colorarion intensity growth and the decrease in the Mn content during filtration. The correlation coefficient between these factors is r = –1, which indicates that the presence of manganese is the main factor for increasing the color intensity upon the treatment of water with chlorine dioxide in the summer season. On the basis of the obtained results, a flexible scheme is proposed for chlorine dioxide supply with the following stages: primary treatment at the entrance to water treatment facilites, secondary treatment after coagulation and settling of water before fast filtration, and final disinfection before supplying drinking water to the city.
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REFERENCES
Ma, X. and Green, S.A., Fractionation and spectroscopic properties of fulvic acid and its extract, Chemosphere, 2008, vol. 72, no. 10, pp. 1425–1434.
Swietlik, J., Dabrovska, A., and Raczyk-Stanislawiak, U., Reactivity of natural organic matter fractions with chlorine dioxide and ozone, Water Res., 2004, vol. 38, no. 3, pp. 547–558.
Rabajczyk, A. and Namiesnik, J., Speciation of iron in the aquatic environment, Water Environ. Res., 2016, vol. 86, no. 8, pp. 741–758.
Rabajczyk, A., Influence of land development on heavy metal forms in the Bobrza River ecosystem (Świętokrzyskie Province, Poland), Centr. Eur. J. Chem., 2011, vol. 9, no. 2, pp. 326–336.
Arpadjan, S., Tsekova, K., Petrova, P., and Knutsson, J., Field sampling, speciation and determination of dissolved iron(II) and iron(III) in waters, Bulg. Chem. Commun., 2012, vol. 44, no. 4, pp. 299–306.
Dinu, M.I. and Shkinev, V.M., Complexation of metal ions with organic substances of humus nature: Methods of study and structural features of ligands, and distribution of elements between species, Geochem. Int., 2020, vol. 58, no. 2, pp. 200–211.
Linnik, P.N., Zhezherya, V.A., and Linnik, R.P., Iron in natural surface waters of Ukraine: Content, peculiarities of migration and biological role, Hydrobiol. J., 2018, vol. 54, no. 5, pp. 63–80.
Kovzun, I.G., Prokopenko, V.A., Panko, A.V. Tsyganovich, O.A., Oliinyk, V.O., Nikipelova, O.M., and Ulberg, Z.R., Nanochemical, Nanostructural and Biocolloidal Aspects of the Transformation in Dispersion of Iron-Aluminosilicate Minerals, Kyiv, 2020, ch. 1.7, pp. 28–31.
Adusei-Gyamfi, J., Ouddane, B., Rietveld, L., Cornard, J.-P., and Criquet, J., Natural organic matter cations complexation and its impact on water treatment—A critical review, Water Res., 2019, vol. 160, pp. 130–11.
Kulishenko, A.E., Ostapenko, V.T., Kravchenko, T.B., Kvasnitsa, E.A., and Ostapenko, R.V., The statistical analysis of quality indicators of the Dnieper river water and directions for reconstruction of water treatment facilities of the Dnieper waterworks in Kiev, J. Water Chem. Technol., 2011, vol. 33, no. 2, pp. 117–129.
Lin, J.-L. and Ika, A.R., Enhanced coagulation of low turbid water for drinking water treatment: Dosing approach of floc formation and residuals minimization, Environ. Eng. Sci. Mar., 2019, vol. 36, no. 6, pp. 732–738.
Gregory, J. and Duan, J.M., Hydrolyzing metal salts as coagulants, Pure Appl. Chem., 2001, vol. 73, pp. 2017–2026.
Lee, S., Roh, Y., and Koh, D.-C., Oxidation and reduction of redox-sensitive elements in the presence of humic substances in subsurface environments—A review, Chemosphere, 2019, vol. 220, pp. 86–97.
Gaid, K., A large review of the pre treatment, in Expanding Issues in Desalination, London: InTech Open, 2011, pp. 3–56.
ASTM D4189-95: Standard Test Method for Silt Density Index (SDI) of Water, West Conshohocken, PA: ASTM Int., 1995.
Manning, T.J., Bennett, T., and Milton, D., Aggregation studies of humic acid using multiangle laser light scattering, Sci. Total Environ., 2000, vol. 257, nos. 2–3, pp. 171–176.
Kul’skiy, L.A., Teoreticheskie osnovy i tekhnologiya konditsionirovaniya vody (Theory and Technology of Water Conditioning), Kiev, 1980.
Chow, C.W.K., van Leeuwen, J.A., Fabris, R., and Drikas, M., Optimized coagulation using aluminium sulfate for the removal of dissolved organic carbon, Desalination, 2009, vol. 245, nos. 1–3, pp. 120–134.
Shevchenko, M.A., Organicheskie veshchestva v prirodnoi vode i metody ikh udaleniya (Organic Substances in Natural Water and Methods of Their Removal), Kiev, 1966.
Goronovskii, I.T., Fiziko-khimicheskoe obosnovanie avtomatizatsii tekhnologicheskikh protsessov obrabotki vody (Physical and Chemical Substantiation of Automation of Water Treatment), Kiev, 1975.
Matilainen, A., Removal of the natural organic matter in the different stages of the drinking water treatment process, PhD Thesis, Tampere, 2007.
Archer, A.D. and Singer, P.C., SUVA and NOM coagulation using the ICR database, J. Am. Water Works Assoc., 2006, vol. 98, no. 2, pp. 110–115.
Klimenko, N.A., Samsoni-Todorova, E.A., Savchina, L.A., Lavrenchuk, I.N., and Zasyad’ko, T.N., Seasonal variations of characteristics of organic matter in the Dnieper River water, J. Water Chem. Technol., 2012, vol. 34, no. 3, pp. 154–161.
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Translated by O. Kadkin
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Kulishenko, O.Y., Klymenko, N.A., Savchyna, L.A. et al. Peculiarities of Preparation of Drinking Water from Surface Sources with High Contents of Natural Organic Compounds, Iron, and Manganese. J. Water Chem. Technol. 43, 448–458 (2021). https://doi.org/10.3103/S1063455X21060059
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DOI: https://doi.org/10.3103/S1063455X21060059