Origin of Aluminium in the Raw Drinking Water of Sofia City, Bulgaria
| Autor: | Irina Angelova, Tony Venelinov, Ivaylo Ivanov |
|---|---|
| Přispěvatelé: | Tony Venelinov, Ivailo Ivanov |
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Population chemistry.chemical_element 010501 environmental sciences 01 natural sciences Turbidity Aluminium Drinking water Environmental Chemistry Precipitation Raw water education Chemical composition 0105 earth and related environmental sciences Water Science and Technology Hydrology education.field_of_study geography geography.geographical_feature_category Ecological Modeling DWTP Inlet Pollution chemistry Environmental science Water treatment |
| Zdroj: | Water, Air, & Soil Pollution. 231 |
| ISSN: | 1573-2932 0049-6979 |
| Popis: | In recent years, the concentration of aluminium in the Iskar River occasionally exceeds the environmental quality standard (EQS). The river and the Iskar Dam, build on the river, are the main drinking water source of Sofia city (Bulgaria), with population exceeding 1.2 million. The average concentrations of aluminium in the raw water entering the drinking water treatment plants of Sofia city—Bistritza and Pancharevo—in 2018 were 0.148 mg/L and 0.199 mg/L, respectively, which are very close to the limits set in Directive 98/83/ EC. This study uses multifactorial analysis, taking into account the influence of the mineral and chemical composition of sediments of the Iskar Dam, the geological conditions at the dam’s catchment area, the relationship between the aluminium concentrations and precipitation in the region and also the relationship between the aluminium concentration and the turbidity at the inlet of the two treatment plants, to determine the origin of aluminium in the raw drinking water of Sofia city. The obtained linear regression models for the aluminium concentration and the turbidity at the inlet are significant (p ≤ 0.001) with coefficients of determination (R2) for DWTP–Bistritza and DWTP–Pancharevo of 0.54 and 0.51, respectively. |
| Databáze: | OpenAIRE |
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