OPTIMIZATION OF THE SEWER SYSTEM OF A RURAL AREA

Diplomskim radom obrađena je tema optimalizacije kanalizacijskog sustava odabranog ruralnog područja. Za promatrano područje uzeta su četiri naselja unutar Općine Viljevo, kao klasični primjeri ruralnih naselja u Slavoniji. U sklopu rada analizirani su svi mjerodavni ulazni parametri potrebni za pravilno dimenzioniranje te određivanje optimalnog kanalizacijskog sustava. Ponuđeno je više varijantnih rješenja, odabranih prema karakteristikama obrađenih ulaznih podataka, kao što su broj stanovnika na promatranom području, karakteristika otpadne vode i dr. Ponuđenim varijantnim rješenjima u obzir je uzeta primjena centraliziranog, decentraliziranog, konvencionalnog i alternativnog kanalizacijskog sustava. Time se pokrilo široko područje često primijenjenih sustava kao i onih čija primjena u budućnosti može pronaći mjesto u rješavanju ovoga problema na području Hrvatske. Unutar rada naglašena je ekonomska analiza izgradnje sustava u vidu optimalizacije, preko koje se došlo da najekonomičnijih varijanti. Nadalje, najekonomičnije varijante obrađene su višekriterijskom analizom s tehničko-tehnološkog aspekta. Temeljem obrađenih analiza može se usvojiti optimalan kanalizacijski sustav kroz sve faze, počevši od izgradnje i trajnosti do održavanja i troškova rada sustava.The topic of this master thesis is the optimization of the sewer system of a chosen rural area. This area includes four settlements, typical for the region of Slavonia, located in the municipality of Viljevo. This thesis represents an analysis of all relevant input parameters necessary for defining and properly dimensioning an optimal sewer system. Thesis also contains several possible formalizations, based on the features of analyzed input parameters, such as the population and wastewater of the chosen area. These possible formalizations include the usage of centralized, decentralized, conventional and alternative sewer systems. Therefore, this analysis includes systems which are regularly in use, as well as those which can possibly be used in the future on the territories of the Republic of Croatia. Furthermore, thesis assesses the most economical way of construction of the systems. The most economical forms are assessed through technical and technological multi-criteria analysis. This thesis presents the most optimal sewer system through all phases, starting from the construction and durability, to maintenance and labor costs

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

Analysis of the Inhomogeneous Effect of Different Meteorological Trends on Drought: An Example from Continental Croatia

The majority of central Europe has a transitional climate type as a result of interactions between maritime and continental climates. This study focuses on the appearance and severity of drought in continental Croatia, which is part of the transitional climate area. It is situated between 15° E and 19° E. The altitude declines from west (167 m a.s.l) to east (88 m a.s.l.). The time period analysed is 1981–2018. Air temperature and precipitation data series from 13 meteorological stations were analysed. The analysis was done on an annual basis to define the spatio-temporal variability in air temperature and precipitation and their impact on drought episodes using the standardised evapotranspiration precipitation index. Different statistical methods (e.g., the nonparametric Mann–Kendall test and agglomerative hierarchical clustering) were used to examine the trend homogeneity of the analysed region. The analysis indicated inhomogeneity across the study area in terms of what significantly impacted the occurrence and severity of droughts. Drought occurrence is influenced more strongly by increasing trends in air temperature as compared with increasing or decreasing precipitation trends. The probability of severe drought occurrence was estimated using a copula function, and the results demonstrated that areas with higher precipitation could be more exposed to drought. Furthermore, the results demonstrated the impacts of specific regional characteristics on drought occurrence, severity, and duration, which indicates that small-scale research on droughts is more reliable

Water for all : proceedings 8th International Conference Water for all

The 8th International Conference WATER FOR ALL was held on the 21th and 22th March 2019 in Osijek, on Faculty of Civil Engineering and Architecture Osijek on the occasion of World Water Day and with the aim of gathering and exchanging experiences of scientists and experts in the field of water management, environmental protection and preservation of water resources. The Conference included plenary lectures, oral lectures, poster presentations, and the presentations of sponsoring companies. 8th International Conference WATER FOR ALL was organized by the Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek and Faculty of Civil Engineering and Architecture Osijek, Croatian Chamber of Economy, Croatian Water - VGO, Croatian Chamber of Health Professionals, Croatian Water Pollution Control Society, Faculty of Agrobiotechnical Sciences Osijek, Department of Biology of the Josip Juraj Strossmayer University of Osijek, Department of Chemistry of the Josip Juraj Strossmayer University of Osijek, University of Bihać, Faculty of Agriculture and Food Technology University of Mostar, Faculty of Health Studies University of Sarajevo, Faculty of Food Technology and Biotechnology University of Zagreb, Faculty of Technology University of Tuzla, Faculty of Technology and Metallurgy University of Skopje, Faculty of Health Sciences University of Ljubljana, Nature Park “Kopački rit”, Public Institution for nature protection in Osijek- Baranja County, Public Health Institute of the Osijek-Baranja County, Health Center Osijek, Vodovod-Osijek d.o.o. and Alumni Association of former students and friends of the Faculty of Food Technology Osijek - TehnOS. The international co- organizers of the Conference were International Federation of Environmental Health (IFEH), European Hygienic Engineering & Design Group (EHEDG) and Danube Parks. The theme of World Water Day 2019 and 8th International Conference WATER FOR ALL was "Water for all – Leaving no one behind!". At the 8th International Conference WATER FOR ALL participated 359 authors from 10 countries (Croatia, Bosnia and Herzegovina, Serbia, Montenegro, Slovenia, Republic of Kosovo, Turkey, Norway, Mexico and Brazil) with presentation of in total 112 paper, from which of them 41 were presented orally, and were presented 71 as poster presentation. Abstract of the mentioned papers were published in the Book of Abstracts of the 8th International Conference WATER FOR ALL. The Scientific Committee of 8th International Conference WATER FOR ALL received 35 full papers for publication and 17 of them became the part of the this Proceedings, while 18 papers were accepted and publicated in following international scientific journals: Electronic Journal of the Faculty of Civil Engineering Osijek - e-GFOS, Croatian Journal of Food Science and Technology, Technologica Acta, The Holistic Approach to Environment and Environmental Engineering - Inženjerstvo Okoliša. Special contributions to the quality of this Proceedings of the 8th International Conference WATER FOR ALL were given by 49 reviewers, mostly university professors and professionals, from 10 countries and over twenty international universities, faculties and institutions. On behalf of the Organizing and Scientific Committee of the 8th International Conference WATER FOR ALL we cordially thank all the authors, participants, reviewers and sponsors for their contribution to the quality of the 8th International Conference WATER FOR ALL