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Journal : Indonesian Journal of Life Cycle Assessment and Sustainability

Life cycle assessment (LCA) refuse derived fuel (RDF) waste in pusat inovasi agro teknologi (PIAT) Universitas Gadjah Mada as alternative waste management for energy Titi Tiara Anasstasia; Muhammad Mufti Azis; Imam Haryanto; Rio Arya Pratama
Indonesian Journal of Life Cycle Assessment and Sustainability Vol 2, No 1 (2018)
Publisher : Indonesian Life Cycle Assessment Network (ILCAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.25 KB) | DOI: 10.52394/ijolcas.v2i1.71

Abstract

Pusat Inovasi Agroteknologi (PIAT) handles institutional waste generated from Universitas Gadjah Mada (UGM). Waste from UGM is called Institutional Solid Waste (ISW) reaches 1,427.27 kg / week. In this study, Life Cycle Assessment (LCA) analysis was used as a tool to calculate and evaluate the environmental impact of potential ISW conversion to densified Refused Derived Fuel (dRDF) with gate to gate framework system. For simulation, OpenLCA software equipped with Ecoinvent database was used in this work. The results showed that conversion of combustible inorganic waste into densified Refuse Derived Fuel (dRDF) along with conversion of organic waste into compost gave following environmental impacts: global warming potential of 1.3E+00 kg CO2 eq, acidification 3.9E-03kg SO4 eq., eutrophication 7.1E-01 kg P eq., human toxicity 1.2E+00 kg 1.4-dichlorobenzene and terrestrial ecotoxicity 6.1E-02 kg 1.4-dichlorobenzene. By separating combustible from non-combustible inorganic waste may significantly improve the quality of dRDF as well as the quantity of compost. The substitution of coal using dRDF combined with the selling of compost is a feasible option. In addition, our results also showed that installation of exhaust gas emission control could further reduce the environmental impact of dRDF production. An economic evaluation was also conducted to evaluate the scenario of converting ISW into dRDF and compost. This option appeared to be profitable, provided that no restrictions to the processed waste, steady flow of dRDF product to the end-users, and the presence of standard price for dRDF.
Life Cycle Assessment (LCA) of Refused Derived Fuel and Biogas as Products as Option of Sleman Regency Municipal Solid Waste Management Muhammad Abdul Ghony; Muhammad Mufti Azis; Titi Tiara Anasstasia
Indonesian Journal of Life Cycle Assessment and Sustainability In Press
Publisher : Indonesian Life Cycle Assessment Network (ILCAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sustainable municipal waste management is a big challenge for cities in Indonesia such as Sleman Regency, in D.I.Yogyakarta. Waste to Energy (WtE) is one of the methods in municipal waste management. Energy recovery from municipal waste is expected to produce electricity and/or thermal energy and thereby may reduce the amount of waste transferred to landfills. This study aims to evaluate the environmental impact of two energy recovery scenarios of municipal solid waste management in Sleman Regency. Here, we investigated 3 option for MSW management: direct combustion of once sorted waste to produce energy (O-1) , an integrated combustion of inorganic waste through the formation of densified Refuse Derived Fuel (RDF) followed by energy production (O-2) and scenario which are including dRDF and biogas followed by energy production (O-3). The environmental impacts from both scenarios were computed with Life Cycle Assessment (LCA) simulation by using OpenLCA software. The impact assessment include global warming potential (GWP), acidification potential (AP), eutrophication potential (EP) and human toxicity potential (HTP). The LCA simulation results showed that the GWP value of O-1, O-2 and O-3 are 0,6741 kg CO2eq / kWh, 0. 65863 kg CO2eq / kWh, and 0,574 kg CO2eq/kWh respectively. The AP, EP and HTP values for O-3 are consistently lower than that of O-2 and O-3. Thus, the LCA simulation results showed that MSW conversion into dRDF and biogas as a part of WtE technology is more environmentally friendly than direct combustion of MSW to energy.