Disinfection by-products in Croatian drinking water supplies with special emphasis on the water supply network in the city of Zagreb

Kurajica, Livia; Ujević Bošnjak, Magdalena; Novak Stankov, Mirjana; Kinsela, Andrew; Štiglić, Jurica; Waite, Trevor; Capak, Krunoslav

doi:10.1016/j.jenvman.2020.111360

Pregled bibliografske jedinice broj: 1100646

Disinfection by-products in Croatian drinking water supplies with special emphasis on the water supply network in the city of Zagreb

Kurajica, Livia; Ujević Bošnjak, Magdalena; Novak Stankov, Mirjana; Kinsela, Andrew; Štiglić, Jurica; Waite, Trevor; Capak, Krunoslav

Disinfection by-products in Croatian drinking water supplies with special emphasis on the water supply network in the city of Zagreb // Journal of environmental management, 276 (2020), 111360, 11 doi:10.1016/j.jenvman.2020.111360 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 1100646 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Disinfection by-products in Croatian drinking water supplies with special emphasis on the water supply network in the city of Zagreb

Autori
Kurajica, Livia ; Ujević Bošnjak, Magdalena ; Novak Stankov, Mirjana ; Kinsela, Andrew ; Štiglić, Jurica ; Waite, Trevor ; Capak, Krunoslav

Izvornik
Journal of environmental management (0301-4797) 276 (2020); 111360, 11

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

Ključne riječi
Disinfection by-products ; Drinking water ; Croatia ; Zagreb ; Fluorescence ; PARAFAC

Sažetak
The occurrence of disinfection by-products (DBPs) was investigated in 48 drinking water systems across Croatia. Eleven DBPs were studied: chlorite (ClO2−), chlorate (ClO3−), four trihalomethanes (THMs), and five haloacetic acids (HAAs). Furthermore, an intensive sampling program was conducted in the distribution system in the city of Zagreb where, aside from DBP analyses, natural organic matter (NOM) was characterized using fluorescence spectroscopy. In the drinking waters examined across Croatia, DBP values were found in the range from 0.7 μg/L to 32.8 μg/L for THMs, below LOQ to 17.2 μg/L for HAAs (primarily di- and trichloroacetic acids), below LOQ to 720 μg/L for ClO2− and below LOQ to 431 μg/L for ClO3−. The results obtained showed higher chlorite concentrations in the systems treated with hypochlorite compared to systems treated with chlorine dioxide. DBPs in the Zagreb distribution network were generally low (the average values were below 6 μg/L and 2 μg/L for total THM and total HAA respectively). In contrast to our observations throughout Croatia, dibromoacetic acid (DBAA) was found to be the predominant HAA within Zagreb, most likely due to the degradation of chlorinated carboxylates (di-/tri-chloroacetic) in the network. Characterization of NOM by Parallel Factor Analysis (PARAFAC) fluorescence spectroscopy across the Zagreb network showed distinct temporal variations arising from groundwater inputs, as evident from variable humic-, tyrosine-, and tryptophan-like peaks. Statistical correlations between fluorescence data and DBPs highlight its potential for monitoring the presence of DBPs in distribution networks.

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,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Profili:

Krunoslav Capak (autor)