Mixing of arsenic-rich groundwater and surface water in drinking water distribution systems: Implications for contaminants, disinfection byproducts and organic components

Kurajica, Livia; Ujević Bošnjak, Magdalena; Kinsela, Andrew S.; Bieroza, Magdalena; Štiglić, Jurica; Waite, Trevor D.; Capak, Krunoslav; Romić, Željka

doi:10.1016/j.chemosphere.2021.133406

Pregled bibliografske jedinice broj: 1168336

Mixing of arsenic-rich groundwater and surface water in drinking water distribution systems: Implications for contaminants, disinfection byproducts and organic components

Kurajica, Livia; Ujević Bošnjak, Magdalena; Kinsela, Andrew S.; Bieroza, Magdalena; Štiglić, Jurica; Waite, Trevor D.; Capak, Krunoslav; Romić, Željka

Mixing of arsenic-rich groundwater and surface water in drinking water distribution systems: Implications for contaminants, disinfection byproducts and organic components // Chemosphere, 292 (2022), 133406, 13 doi:10.1016/j.chemosphere.2021.133406 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 1168336 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Mixing of arsenic-rich groundwater and surface water in drinking water distribution systems: Implications for contaminants, disinfection byproducts and organic components

Autori
Kurajica, Livia ; Ujević Bošnjak, Magdalena ; Kinsela, Andrew S. ; Bieroza, Magdalena ; Štiglić, Jurica ; Waite, Trevor D. ; Capak, Krunoslav ; Romić, Željka

Izvornik
Chemosphere (0045-6535) 292 (2022); 133406, 13

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Drinking water supply ; Water quality ; Arsenic ; Fluorescence spectroscopy ; Principal component and classification analysis (PCCA)

Sažetak
The utilization of groundwaters containing high levels of arsenic (As) for drinking water purposes presents major health and economic challenges for water utilities. One low-cost approach is to mix arsenic-rich groundwater (GW) with arsenic-free surface waters (SW) to achieve acceptable As levels. In this study we investigated the effect of different mixing ratios on water quality in an eastern Croatian water distribution system (WDS). To investigate the effects of mixing on drinking water quality, we measured the organic matter (OM) composition, disinfection byproduct (DBP) and metal concentrations in differently mixed ratios of GW and SW within the WDS. Fluorescence analysis revealed that the GW and SW had similar OM composition, with an almost equal ratio of humic- and protein-like OM throughout the WDS despite fluorescence indices revealing slightly different OM sources between the two water types. The tyrosine-like OM component was more variable, increasing during warmer months and towards the end of the WDS, most likely due to enhanced biofilm formation. Arsenic concentrations decreased to below 10 μg/L in the second half of the sampling campaign. Acceptable water quality was achieved after a period of destabilization and solubilization of loose deposits within the WDS resulting in their mobilization caused by water quality changes. Principal component and classification analysis, regression models and Spearman correlation coefficients revealed an association between As, OM and DBP concentrations with these correlations suggestive of their role in As mobilization in the WDS. Changing source waters, with different OM content and characteristics, corresponded to variable As release within the WDS.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA

Projekti:
UIP-2017-05-3088 - Istraživanje procesa koji se odvijaju u vodoopskrbnim sustavima (ProVoda) (Ujević Bošnjak, Magdalena, HRZZ - 2017-05) ( CroRIS)

Ustanove:
Hrvatski zavod za javno zdravstvo

Profili:

Krunoslav Capak (autor)