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Konstantinos G. Aravossis
School of Mechanical Engineering, National Technical University of Athens (NTUA), 15780 Athens, Greece

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Journal article
Published: 27 August 2020 in Energies
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There has been intense debate over the depletion of fossil fuel reserves in recent decades as well as the greenhouse gas emissions that are causing climate change. At the same time, new legislation in Greece, national policies, European policies, and realistic needs, need effective waste management and the protection of national resources. As a result, it seems a necessity to exploit waste treatments, while expanding the use of renewable energy sources. In this study, an attempt is made to focus our interest and research on a specific biomass waste stream, namely the waste biomass from the agricultural-livestock sector. The possibility of processing these wastes through the technology of biomass biorefinery with anaerobic digestion as its central process will be studied. The technology of anaerobic digestion is a process widely used for the treatment of agricultural residues and livestock waste as well as for the exploitation of energy crops (energy development, soil enhancement) mainly in countries in Europe and globally. This study reviews the biorefinery biomass technology, the energy production technology, production of biofuels, and new materials from waste biomass at the behest of the circular economy and bioeconomy. Additionally, this research will be an introduction in maximizing the potential of the full utilization of agricultural and livestock waste, and the by-products that can be produced from these processes.

ACS Style

Grigorios Rekleitis; Katherine-Joanne Haralambous; Maria Loizidou; Konstantinos Aravossis. Utilization of Agricultural and Livestock Waste in Anaerobic Digestion (A.D): Applying the Biorefinery Concept in a Circular Economy. Energies 2020, 13, 4428 .

AMA Style

Grigorios Rekleitis, Katherine-Joanne Haralambous, Maria Loizidou, Konstantinos Aravossis. Utilization of Agricultural and Livestock Waste in Anaerobic Digestion (A.D): Applying the Biorefinery Concept in a Circular Economy. Energies. 2020; 13 (17):4428.

Chicago/Turabian Style

Grigorios Rekleitis; Katherine-Joanne Haralambous; Maria Loizidou; Konstantinos Aravossis. 2020. "Utilization of Agricultural and Livestock Waste in Anaerobic Digestion (A.D): Applying the Biorefinery Concept in a Circular Economy." Energies 13, no. 17: 4428.

Journal article
Published: 10 March 2020 in Journal of Cleaner Production
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Urban development planning is the process of developing long-range policies for the future of a region, taking into consideration technical, political, social and environmental aspects. The need to incorporate the prementioned aspects, resulted in the increasing use of multicriteria approaches. One of the most common problems of urban development planning is to choose among various alternative projects. Motivated by the sustainable utilization of Athens’ Hellinikon airport, this paper proposes a methodology for the selection of the best solution for the development of the urban site under certain preconditions. The main purpose of this multicriteria methodology is to assess five alternative investment proposals for the development of the urban site. Since local policy makers are considered to be the stakeholders, the implemented evaluation method includes several criteria that are based on three main categories: economy, environment and society. The selected criteria represent relevant, controllable and measurable elements and could be used as sustainable development indicators. A questionnaire is designed to gather information from stakeholders to evaluate the degree of influence of each indicator on the selection of the proposals. A sensitivity analysis has been carried out giving different preferences from the stakeholders. This paper offers an evaluation framework based on a blend of three types of approaches, the additive value model, the Electre III and the Promethee II. The three methods have been developed in the past, however, this paper tries to offer a cohesive framework, which can be used for the evaluation of urban development proposals in the light of economic, environmental and social criteria. The results obtained by the multicriteria evaluation method showed that the alternative proposals including the exploitation of the examined region in all land uses, marked the best performances in almost all the criteria.

ACS Style

C. Nikoloudis; K. Aravossis; E. Strantzali; N. Chrysanthopoulos. A novel multicriteria methodology for evaluating urban development proposals. Journal of Cleaner Production 2020, 263, 120796 .

AMA Style

C. Nikoloudis, K. Aravossis, E. Strantzali, N. Chrysanthopoulos. A novel multicriteria methodology for evaluating urban development proposals. Journal of Cleaner Production. 2020; 263 ():120796.

Chicago/Turabian Style

C. Nikoloudis; K. Aravossis; E. Strantzali; N. Chrysanthopoulos. 2020. "A novel multicriteria methodology for evaluating urban development proposals." Journal of Cleaner Production 263, no. : 120796.

Review
Published: 04 November 2019 in Sustainability
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A circular economy (CE) is conceptualized under different rounds of materials and energy cycling flows and is a matter of a three-level deployment: inter-enterprise circulation, regional circulation, and social circulation. Regarding them, the aim of this research was to get an update on the current technological advances and the perspectives of its implementation. Thus, a multi-parametric approach has been conducted to analyze the functionality of technologies in wastewater treatment, organic waste management, agrarian development, and food waste in the context of CE. Beside the narrative of the technological view, a critical approach assimilates the environmental, marketing, economic, governmental, and procedural viewpoints and leads to key indicators which are subject to positive and negative externalities. Due to this co-existence, we denoted the complexity of CE principle implementation and the need for specific envisage in each case, while proposing strategies are formulated in the light of social-environmental impact. Finally, further research gaps were proposed for deeper consideration.

ACS Style

Grigorios Kyriakopoulos; Vasilis Kapsalis; Konstantinos Aravossis; Miltiadis Zamparas; Alexandros Mitsikas. Evaluating Circular Economy under a Multi-Parametric Approach: A Technological Review. Sustainability 2019, 11, 6139 .

AMA Style

Grigorios Kyriakopoulos, Vasilis Kapsalis, Konstantinos Aravossis, Miltiadis Zamparas, Alexandros Mitsikas. Evaluating Circular Economy under a Multi-Parametric Approach: A Technological Review. Sustainability. 2019; 11 (21):6139.

Chicago/Turabian Style

Grigorios Kyriakopoulos; Vasilis Kapsalis; Konstantinos Aravossis; Miltiadis Zamparas; Alexandros Mitsikas. 2019. "Evaluating Circular Economy under a Multi-Parametric Approach: A Technological Review." Sustainability 11, no. 21: 6139.

Journal article
Published: 19 July 2019 in Sustainability
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The evaluation and selection among the best production practices beyond the conventional linear models is, nowadays, concerned with those holistic approaches drawn toward environmental assessment in industry. Therefore, researchers need to develop an analysis that can evaluate the performance of industrial organization in the light of their environmental viewpoint. This study implemented a pilot co-integrated scheme based on an innovative in-house Holistic Assessment Performance Index for Environment (HAPI-E) industry tool while assimilating the principles of circular economy through the Eco-innovation Development and Implementation Tool (EDIT). For the latter, nine qualitative indicators were motivated and enriched the weighting criteria of the questionnaire. The decomposition of the complexity and preferences mapping was accompanied by a multi-criteria holistic hierarchical analysis methodology in order to synthesize a single index upon a need-driven scoring. This multi-criteria decision approach in industry can quantify the material and process flows, thus enhancing the existing knowledge of manipulating internal resources. The key-criteria were based on administrative, energy, water, emissions, and waste strategies. Subsequently, the HAPI-E industry tool was modeled on the food industry, being particularly focused on pasta-based industrial production. Then, the parameters of this tool were modeled, measured, and evaluated in terms of the environmental impact awareness. The magnitude of necessary improvements was unveiled, while future research orientations were discussed. The HAPI-E industry tool can be utilized as a precautionary methodology on sustainable assessment while incorporating multifaceted and quantification advantages.

ACS Style

Konstantinos G. Aravossis; Vasilis C. Kapsalis; Grigorios L. Kyriakopoulos; Theofanis G. Xouleis. Development of a Holistic Assessment Framework for Industrial Organizations. Sustainability 2019, 11, 3946 .

AMA Style

Konstantinos G. Aravossis, Vasilis C. Kapsalis, Grigorios L. Kyriakopoulos, Theofanis G. Xouleis. Development of a Holistic Assessment Framework for Industrial Organizations. Sustainability. 2019; 11 (14):3946.

Chicago/Turabian Style

Konstantinos G. Aravossis; Vasilis C. Kapsalis; Grigorios L. Kyriakopoulos; Theofanis G. Xouleis. 2019. "Development of a Holistic Assessment Framework for Industrial Organizations." Sustainability 11, no. 14: 3946.

Journal article
Published: 12 April 2018 in Energies
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Natural gas as fuel for electricity production has significant advantages, such as the reduction of environmental emissions and the lower operational cost. Due to the flexibility of gas engines, the exploitation of renewable energy sources in an area, can be maximized. The main objective of the present study is to investigate the possibility of LNG supply for sustainable electricity production in insular small-scale electricity systems. A novel multicriteria evaluation model has been developed, based on the methods of Additive Value Model, PROMETHEE and Simos approach. A set of coherent criteria has been selected, that fits perfectly with the demands of this type of problem. The proposed methodology has been implemented in four Greek islands (as they are the most indicative examples and with future perspectives to use natural gas for electricity production) and in one power plant in the mainland (as another typical example of small-scale electricity production). The evaluation process included four supply alternatives that cover the annual fuel demands of the examined regions. The obtaining ranking showed that the development of a network supplying individual small-scale terminals in a roundtrip is preferable, compared to the separate supply of each terminal.

ACS Style

Eleni Strantzali; Konstantinos Aravossis; Georgios A. Livanos; Nikos Chrysanthopoulos. A Novel Multicriteria Evaluation of Small-Scale LNG Supply Alternatives: The Case of Greece. Energies 2018, 11, 903 .

AMA Style

Eleni Strantzali, Konstantinos Aravossis, Georgios A. Livanos, Nikos Chrysanthopoulos. A Novel Multicriteria Evaluation of Small-Scale LNG Supply Alternatives: The Case of Greece. Energies. 2018; 11 (4):903.

Chicago/Turabian Style

Eleni Strantzali; Konstantinos Aravossis; Georgios A. Livanos; Nikos Chrysanthopoulos. 2018. "A Novel Multicriteria Evaluation of Small-Scale LNG Supply Alternatives: The Case of Greece." Energies 11, no. 4: 903.

Review
Published: 31 January 2012 in Waste Management
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This paper examines the evaluation of a waste management project’s alternatives through a quantitative risk analysis. Cost benefit analysis is a widely used method, in which the investments are mainly assessed through the calculation of their evaluation indicators, namely benefit/cost (B/C) ratios, as well as the quantification of their financial, technical, environmental and social risks. Herein, a novel approach in the form of risk-based multi-criteria assessment (RBMCA) is introduced, which can be used by decision makers, in order to select the optimum alternative of a waste management project. Specifically, decision makers use multiple criteria, which are based on the cumulative probability distribution functions of the alternatives’ B/C ratios. The RBMCA system is used for the evaluation of a waste incineration project’s alternatives, where the correlation between the criteria weight values and the decision makers’ risk preferences is analyzed and useful conclusions are discussed.

ACS Style

Athanasios C. Karmperis; Anastasios Sotirchos; Konstantinos Aravossis; Ilias P. Tatsiopoulos. Waste management project’s alternatives: A risk-based multi-criteria assessment (RBMCA) approach. Waste Management 2012, 32, 194 -212.

AMA Style

Athanasios C. Karmperis, Anastasios Sotirchos, Konstantinos Aravossis, Ilias P. Tatsiopoulos. Waste management project’s alternatives: A risk-based multi-criteria assessment (RBMCA) approach. Waste Management. 2012; 32 (1):194-212.

Chicago/Turabian Style

Athanasios C. Karmperis; Anastasios Sotirchos; Konstantinos Aravossis; Ilias P. Tatsiopoulos. 2012. "Waste management project’s alternatives: A risk-based multi-criteria assessment (RBMCA) approach." Waste Management 32, no. 1: 194-212.