Suchergebnisse

In the Environmental Protection Strategy of the Republic of Croatia, waste management is defined as a national priority, and the vision is a landfill-free concept. The backbones are recycling centers with sorting plants where separately collected waste will be prepared for recycling. Concept of sustainable development is a key determinant of the development of the Primorje-Gorski Kotar County (PGKC), and the fact that permanent disposal of waste of any kind will not be possible on the islands is particularly important for this County. Mixed municipal waste generated in PGKC should be first sorted at the local transshipment station on the island, and then transported by road to the county center for waste management, which is an expensive and complex process. Given that sea transport is known to be the cheapest, one possible solution would be to place a waste sorting plant on a suitable ship which would collect waste by sailing around the island, thus avoiding the need for each island to have its own sorting plant. The paper presents a preliminary design of a ship for sorting waste collected from the large islands of PGKC. The mission requirements of the ship were elaborated initially, and then a basic design of the ship was made, accompanied by the corresponding naval architecture calculations, general arrangement plan and outline specification.

An analysis of drinking water supply to the Croatian islands indicates an unsatisfactory situation with drinking water on inhabited and occasionally inhabited islands, as well as frequent shortages of drinking water. Besides the fact that this constitutes an obstacle to the economic development of the islands, the scarcity of drinking water further complicates the everyday life of islanders, especially during the summer months when scarcities are more frequent. A particular problem has been observed on islands where the drinking water is supplied by drinking-water carriers. There are four such ships in Croatia, with an average age of over sixty years, which often fail to meet the island's drinking water demands on time and in sufficient quantity. For strategic reasons, the renovation and strengthening of the Croatian fleet of drinking-water carriers should be definitely considered in order to ensure a secure long-term supply of drinking water to the islands. In the paper a preliminary design of a drinking-water carrier suitable to supply water to the Croatian islands is presented.

The aim of this paper is to analyze the problem of artificial reefs, to warn to the need for definition of such facilities in the national legal framework and in the context of urban ecology, present their potential for the marine environment. A review and analysis of national legal frameworks and European regulations regarding the possibilities of their establishment and management is given, all towards to reduce the eutrophication process, the increase of the fish stock and the creation of a zone for the prohibition of fishing in order to protect the coastline and enable the renewal of marine biodiversity and ecosystems in Republic of Croatia.

The paper presents an analysis of the basic parameters of Ro-Pax ships and double-ended ferries. The study was carried out within the framework of the project METRO (Maritime Environment-friendly TRanspOrt systems), funded from 2014-2020 Interreg V-A Italy-Croatia CBC Programme. The aim of the project is an improvement of the environmental sustainability in the field of maritime transport, with particular emphasis on multimodality and "green" solutions for the coastal transport. The specific focus is on touristic connections in the North Adriatic area. One of the project goals is a development of short-medium range hybrid ships and of concern are Ro-Pax ships and double-ended ferries, which are the most common ship types for coastal shipping in the Adriatic area. Two extensive databases were created encompassing a large number of ferries that operate in Europe, by one for each ship type. The databases will serve as basis for the preliminary design of the new hybrid Ro-Pax ship and double-ended ferry.