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

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 (V1), the operation with recovery of waste as soil improver (V2), the closure of the biogas plant (V3). 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, V2, 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.

The acceptance of biogas in Islamic Boarding School Surakarta

“…Awe et al, (2017) demonstrated that is an effective renewable energy sources for fuel and chemicals production, including hydrogen and synthetic gas. Additionally, Ionescu et al (2019) reported significant revenue growth (37.96%) and profit (53.175) in Romania from the application of biogas, underscoring its environmental and economic benefits. Further research has explored societal, cultural, and economic aspects of biogas adoption, particularly among farmers (Dobers, 2019;Emmann et al, 2013;Francois, 2020).…”

Industrial Symbiosis through the Use of Biosolids as Fertilizer in Romanian Agriculture

“…Emergency Ordinance 48/2017 for the amendment and supplementation of Government Emergency Ordinance 196/2005 on the Environment Fund [42] suspended the landfill waste disposal charge until January 2019. In this way, the waste to landfill disposal was no longer fined [43]. Starting from 1 January 2019, the charge for landfill waste disposal has been reintroduced, in a sum of 16.9 Eur/t in 2019 and 25.1 Eur/t in 2020.…”