Monitoring of chlorides and sulphates concentrations in the wells B-17 and B-18 water supply Vinogradi near Osijek

Vodocrpilište Vinogradi nalazi se zapadno od grada Osijeka koje vodom snabdjeva stanovnike grada Osijeka i okolnih naselja. Kakvoća vode koja se zahvaća iz 18 bunara, kontinuirano je pod nadzorom. Monitoring kakvoće podzemne vode vodocrpilišta Vinogradi, na mikrobiološke i fizikalno-kemijske parametre, provodi se jednom mjesečno. Višegodišnjim praćenjem utvrđena je ujednačena kakvoća podzemne vode kod većine bunara vodocrpilišta, osim kod uzoraka vode iz bunara B-17 i B-18 kod kojih su utvrđene povišene koncentracije klorida i sulfata. U ovom radu prikazani su rezultati analiza kakvoće podzemne vode bunara B-17 i B- 18 vodocrpilišta Vinogradi u razdoblju od 2011. do 2016. godine koji pokazuju oscilacije i povećane koncentracije klorida i sulfata tijekom ispitivanog razdoblja. Ipak, utvrđene vrijednosti i dalje su u granicama dozvoljenih vrijednosti prema Pravilniku o parametrima sukladnosti i metodama analize vode za ljudsku potrošnju (NN 125/13).Vinogradi water well field is located in the west of the town of Osijek, and represents the source of drinking water for population of the town of Osijek. The quality of groundwater drilled from 18 wells is under continuous monitoring and implies one-month determination of microbiological and physicochemical parameters. The results of the analysis showed that the quality of groundwater taken from wells is mostly the same, except for the groundwater taken from wells B-17 and B-18 in which oscillation and heightened sulphate and chloride concentrations were detected. This paper presents the values of sulphate and chloride concentrations detected in groundwater samples taken from wells B-17 and B-18 during the period 2011- 2016. The results show the oscillation of chloride and sulphate concentrations with increasing trend from 2013 to 2016. Although elevated, detected concentrations of sulphate and chlorides are still lower than maximum permissible concentration set by Croatian regulations

Water for all : Proceedings of the 7th international scientific and professional conference Water for all

The 7th International Scientific and Professional Conference Water for all is organized to honour the World Water Day by the Josip Juraj Strossmayer University of Osijek, European Hygienic Engineering & Design Group (EHEDG), Danube Parks, Croatian Food Agency, Croatian Water, Faculty of Food Technology Osijek, Faculty of Agriculture in Osijek, Faculty of Civil Engineering Osijek, Josip Juraj Strossmayer University of Osijek Department of Biology, Josip Juraj Strossmayer University of Osijek Department of Chemistry, Nature Park “Kopački rit”, Osijek- Baranja County, Public Health Institute of the Osijek- Baranja County and „Vodovod-Osijek“ -water supply company in Osijek. The topic of World Water Day 2017 was "Wastewater" emphasizing the importance and influence of wastewater treatments on global environment. The international scientific and professional conference Water for all is a gathering of scientists and experts in the field of water management, including chemists, biologists, civil and agriculture engineers, with a goal to remind people about the significance of fresh water and to promote an interdisciplinary approach and sustainability for fresh water resource management. The Conference has been held since 2011. About 300 scientists and engineers submitted 95 abstracts to the 7th International Scientific and Professional Conference Water for all, out of which 33 was presented orally and 62 as posters. 47 full papers were accepted by the Scientific Committee. 38 full papers became the part of the this Proceedings while 9 papers were accepted for publication in Croatian Journal of Food Science and Technology and Electronic Journal of the Faculty of Civil Engineering Osijek - e-GFOS