3 research outputs found

    Preliminary risk assessment model of wastewater treatment plant construction

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    Predmet ovog istraživanja je formiranje modela preliminarne procjene rizika za proces građenja postrojenja za prečišćavanje otpadnih voda (u daljem tekstu PPOV). To podrazumijeva identifikaciju, analizu i evaluaciju, tj procjenu i ocjenu značaja pojedinih rizika građenja PPOV. Na osnovu dobijenih podataka formira se model preliminarne procjene rizika za proces građenja. Da bi se došlo do neophodnih podataka za formiranje modela koristi se Delfi metoda (metoda ekspertske ocjene).  Eksperti predstavljaju tim formiran od grupe eminentnih stručnjaka iz različitih oblasti značajnih za izgradnju objekata za prečišćavanja otpadnih voda. Ovi stručnjaci su birani na osnovu definisanih kriterijuma i klasifikovani kao eksperti. Eksperti u Delfi metodi treba da postignu konsenzus i nakon toga je potrebno verifikovati predloženi model prelimarne procjene rizika za proces građenja PPOV. Takav verifikovani model može da se uvrsti u procedure upravljanja rizicima u okviru upravljanja projektima izgradnje PPOV.The subject of this research is proposing of a new model of preliminary risk assessment of wastewater treatment plants construction (hereinafter WWTP). This implies identification, analysis and evaluation, ie. assessing and evaluating the importance of the risks during construction of WWTP. Based on the data obtained, a model of preliminary risk assessment for construction is formed. In order to get the necessary data to form a model, the Delphi method is used (the method of expert assessment).  Expert team is formed as a group of eminent experts from different fields important for the construction of wastewater treatment facilities. These experts were elected based on defined criteria and classified as experts. Experts in the Delphi method should reach a consensus and after that it is necessary to verify the model of proposed preliminary risk assessment of WWTP construction. Such a verified model can be included in risk management procedures as part of the management of WWTP construction projects

    Risk Assessment Model for Planning and Design Processes of Wastewater Treatment Plants

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    Before joining the European Union, Serbia faces a big task related to the treatment and purification of wastewater. The capital of Serbia, Belgrade, and some larger cities do not have wastewater treatment plants. Although there are no plants in larger cities in Serbia, they still exist on the territory of the state itself. However, either they are not in good condition, or they do not work with the projected capacity or they do not work at all. This paper presents the model for risks quantification for the planning and design processes of wastewater treatment plants in which the risks are divided into 6 categories: legal, financial and economic, logistics, environmental protection, management and design risks. 37 risks have been defined, analyzed and evaluated by the experts participating in the Delphi method. Experts in various fields dealing with the planning, design or construction of wastewater treatment plants were selected to assess the risks through 2 rounds of Delphi methods and reach the consensus on major risks. By using statistical methods, it is determined that the experts reached the consensus after which each risk received its own relative weighting coefficient. Risk model has been initially verified by experts from Delphi team on two projects during construction phase. This model is important in the initial phases of the project, when the investor starts the project, as well as in the design phases

    Preliminary risk assessment model of wastewater treatment plant construction

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    Predmet ovog istraživanja je formiranje modela preliminarne procjene rizika za proces građenja postrojenja za prečišćavanje otpadnih voda (u daljem tekstu PPOV). To podrazumijeva identifikaciju, analizu i evaluaciju, tj procjenu i ocjenu značaja pojedinih rizika građenja PPOV. Na osnovu dobijenih podataka formira se model preliminarne procjene rizika za proces građenja. Da bi se došlo do neophodnih podataka za formiranje modela koristi se Delfi metoda (metoda ekspertske ocjene).  Eksperti predstavljaju tim formiran od grupe eminentnih stručnjaka iz različitih oblasti značajnih za izgradnju objekata za prečišćavanja otpadnih voda. Ovi stručnjaci su birani na osnovu definisanih kriterijuma i klasifikovani kao eksperti. Eksperti u Delfi metodi treba da postignu konsenzus i nakon toga je potrebno verifikovati predloženi model prelimarne procjene rizika za proces građenja PPOV. Takav verifikovani model može da se uvrsti u procedure upravljanja rizicima u okviru upravljanja projektima izgradnje PPOV.The subject of this research is proposing of a new model of preliminary risk assessment of wastewater treatment plants construction (hereinafter WWTP). This implies identification, analysis and evaluation, ie. assessing and evaluating the importance of the risks during construction of WWTP. Based on the data obtained, a model of preliminary risk assessment for construction is formed. In order to get the necessary data to form a model, the Delphi method is used (the method of expert assessment).  Expert team is formed as a group of eminent experts from different fields important for the construction of wastewater treatment facilities. These experts were elected based on defined criteria and classified as experts. Experts in the Delphi method should reach a consensus and after that it is necessary to verify the model of proposed preliminary risk assessment of WWTP construction. Such a verified model can be included in risk management procedures as part of the management of WWTP construction projects
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