Sustainability and Challenges of Water Supply System: Case Study of Residential Water Consumption in the City of Opatija

Renata Grbac Zikovic
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Renata Grbac Zikovic: University of Rijeka, Croatia

from University of Primorska, Faculty of Management Koper

Abstract: Administrative and territorial unit the City of Opatija provides drinking water from water supply system Liburnia waters Ltd. This system uses five water resources with which makes about 70 % of consumption, but also buys additional water from water supply systems of Rijeka and Ilirska Bistrica. The city of Opatija is a part of Opatija Riviera and its economy is based on tourism. Climate variations, since the beginning of the eighties of the last century manifesting on Opatija area in a significant trend of increasing temperatures of almost 0, 5 degrees C in 10 years, have an impact on both the availability of water reserves of drinking water sources and the need for water. Due to the planned continuation of these adverse trends by the end of the 21st century, water supply system will be faced with the challenge of enabling enough amounts of quality drinking water to satisfy demands of residents and tourists and meeting the requirements of natural environment downstream of the water abstraction for water supply. The main purpose of this paper is to analyse and compare total water consumption and residential water consumption in case study area of the city of Opatija in period 2010-2014. Furthermore, paper will give an insight in resources, development of water supply network, and current state of water supply system technical indicators and direction of its further development. The methodology is based on gathering and analysing statistical data of water consumption, resources and technical indicators of water supply network and SWOT analysis of further economic and ecological sustainable development of water supply system. The results show that development of water supply system and increasing number of connected users monitors total water consumption and residential water consumption gradually decrease in researched period due to investments and improvement of water supply network (reduction of water losses). Analysis of water consumption on monthly basis shows regular oscillation during the year with higher water demands during the summer period. With further investments in water supply network and careful management it is possible to achieve future sustainable economic and ecological development.

Keywords: City of Opatija; water supply system; water consumption; sustainable development (search for similar items in EconPapers)
Date: 2015
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