The Analysis of the Economic Effects on the Greening and Recovery of the Sludge Waste Resulting from the Biogas Production Activity

Constantin Aurelian Ionescu, Mihaela Denisa Coman, Elena Liliana Moiceanu Marin, Liliana Paschia, Nicoleta Gudanescu, Gabriel Cucui, Coman Marius () and Sorina Geanina Stanescu
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Constantin Aurelian Ionescu: Faculty of Economics, Hyperion University of Bucharest, 030615 Bucharest, Romania
Mihaela Denisa Coman: Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania
Elena Liliana Moiceanu Marin: IOSUD, Valahia University of Targoviste, 130105 Targoviste, Romania
Liliana Paschia: Faculty of Economics, Hyperion University of Bucharest, 030615 Bucharest, Romania
Gabriel Cucui: Faculty of Economics, Valahia University of Targoviste, 130004 Targoviste, Romania
Sorina Geanina Stanescu: Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania

Sustainability, 2019, vol. 11, issue 18, 1-19

Abstract: Starting from identifying an upward trend in waste disposal costs at the municipal landfill, the research aims to analyze the viability of investment to integrate a compost platform, which transforms the sludge resulting from the biogas production process into a soil improver for agricultural land. The economic entity analyzed activates agri-food and uses a biogas plant as a management tool for the waste from slaughtering chickens, to obtain biogas, heat, and electricity. The study is carried out through the multi-criteria analysis based on the following variants: The operation of the biogas plant with sludge disposal as waste (V 1 ), the operation with recovery of waste as soil improver (V 2 ), the closure of the biogas plant (V 3 ). The economic effects regarding the greening and capitalization of the sludge waste are quantified from a monetary point of view and based on the analysis the optimal variant, V 2 , is established. It has been proven that the investment generates: Positive results increased by 70.52%, a positive and upward opportunity cost by 37.96%, and marginal profit growth of 53.17%. The study emphasizes that efficient waste management turns an environmental problem and cost into an economic and ecological advantage for the economic entities.

Keywords: sustainability; waste; soil enhancer; multi-criteria analysis; environmental impact; corporate social responsibility (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
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