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Economic and environmental assessment of organic waste to biomethane conversion.
Gupta, Rohit; Miller, Royce; Sloan, William; You, Siming.
Afiliação
  • Gupta R; James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
  • Miller R; James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
  • Sloan W; James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.
  • You S; James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK. Electronic address: siming.you@glasgow.ac.uk.
Bioresour Technol ; 345: 126500, 2022 Feb.
Article em En | MEDLINE | ID: mdl-34890814
Biomethane and biofertilizer production by anaerobic co-digestion of organic waste serves a promising method for reducing the environmental footprint of organic waste management. This study evaluated the techno-economic feasibility and environmental impacts of organic waste to biomethane development in Glasgow, UK using net present value (NPV) analysis and life cycle assessment. Four different biogas upgrading technologies (pressurized water scrubbing, chemical scrubbing, membrane separation, and pressure swing adsorption) were compared. The membrane separation technology-based biomethane production meets 0.8% of the gas demand for Glasgow households with a conversion efficiency of 83%. The organic waste to biomethane development saved up to 264 kg CO2-eq annually per tonne of waste treated, with an NPV ranged between £-9.0 million and £-12.0 million based on the upgrading technology. High costs for waste collection and transportation are primarily responsible for the negative NPV. Carbon taxes between £31.30 and £58.02 per tonne of CO2 are needed for economically viable biomethane production.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Gerenciamento de Resíduos / Metano Tipo de estudo: Health_economic_evaluation Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Gerenciamento de Resíduos / Metano Tipo de estudo: Health_economic_evaluation Idioma: En Ano de publicação: 2022 Tipo de documento: Article