2026-05-05T13:10:26Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/465432025-02-18T08:54:30Zcom_10324_35294com_10324_952com_10324_894col_10324_35295

Pérez Martínez, Victor Mota Filho, Cesar Rossas Muñoz Torre, Raúl Lebrero Fernández, Raquel 2021-05-10T10:52:58Z 2021-05-10T10:52:58Z 2020 Chemosphere, 2020, vol. 255. 9 p. 0045-6535 http://uvadoc.uva.es/handle/10324/46543 10.1016/j.chemosphere.2020.126929 Producción Científica Using the biogas generated from organic waste anaerobic treatment to produce polyhydroxyalkanoates (PHAs) has emerged as an attractive alternative to heat and power generation (CHP) in waste treatment plants. The sustainability of biogas combustion for CHP, biogas bioconversion into PHA and a combination of both scenarios was compared in terms of environmental impact, process economics and social responsibility according to the IChemE Sustainability Metrics. Although PHA production presented higher investment and operational costs, a comparable economic performance was observed in all biogas valorization scenarios regarding net present value (0.77 M€) and internal rate of return (6.4 ± 0.2%) due to the higher market value of biopolymers. The PHA production entailed a significant reduction of atmospheric acidification and odor emissions compared to CHP despite showing higher land, water, chemicals and energy requirements. Job creation associated to biopolymer industry and the increasing public demand for bioproducts were identified as fundamental aspects for enhancing social and local acceptance of waste processing facilities. This study demonstrated that PHA production from biogas constitutes nowadays a realistic alternative to CHP in waste treatment plants and that PHA can be produced at a competitive market price when biogas is used for internal energy provision (4.2 €·kg−1 PHA). Bio Based Industries Joint Undertaking (grant 745785) Junta de Castilla y León - Fondo Europeo de Desarrollo Regional (grants CLU 2017–09, UIC 71 and VA281P18) Junta de Castilla y León (grant C18IPJCL) European Union’s Horizon 2020 research and innovation programme under grant agreement No 745785 application/pdf eng Elsevier info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2020 Elsevier Attribution-NonCommercial-NoDerivatives 4.0 Internacional Biogas valorization Valorización de biogás Biopolymers Biopolímeros Circular economy Economía circular Methanotrophic bacteria Bacterias metanotróficas Polyhydroxyalkanoates (PHA) production from biogas in waste treatment facilities: Assessing the potential impacts on economy, environment and society info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion https://www.sciencedirect.com/science/article/pii/S004565352031122X?via%3Dihub info:eu-repo/grantAgreement/EC/H2020/745785 SI