62 documents found, page 1 of 7
Correction to: Biomass and bioenergy potentials of bioresidues: assessment meth...
d'Espiney, Ana; Pinheiro, H. M.; Marques, Isabel Paula; Kretzschmar, Jörg; Cyffka, Karl‑Friedrich; Thrän, DanielaABSTRACT: Bioenergy research aims to uncover the potentials of biological residues. Regional-specific characterization of such potentials is needed to improve the use of local resources, decisions on bioenergy conversion routes, and services within global efforts against climate change. The definition and calculation of the theoretical and technical biomass and bioenergy potentials are keys for developing susta...
Admissibility Grid to Support the Decision for the Preferential Routing of Port...
Crujeira, Teresa; Trancoso, Maria Ascensão; Eusebio, Ana; Oliveira, Ana Cristina; Passarinho, Paula; Abreu, Mariana; Marques, Isabel PaulaABSTRACT: A methodology was developed to assess the allocation of different types of endogenous waste biomass to eight technologies for producing electricity, heat, biogas and advanced biofuels. It was based on the identification of key physicochemical parameters for each conversion process and the definition of limit values for each parameter, applied to two different matrices of waste biomass. This enabled th...
Admissibility Grid to Support the Decision for the Preferential Routing of Port...
Crujeira, Teresa; Trancoso, Maria Ascensão; Eusebio, Ana; Oliveira, Ana Cristina; Passarinho, Paula; Abreu, Mariana; Marques, Isabel PaulaABSTRACT: A methodology was developed to assess the allocation of different types of endogenous waste biomass to eight technologies for producing electricity, heat, biogas and advanced biofuels. It was based on the identification of key physicochemical parameters for each conversion process and the definition of limit values for each parameter, applied to two different matrices of waste biomass. This enabled th...
Anaerobic Digestion of Microalga Chlorella protothecoides and Metagenomic Analy...
Eusebio, Ana; Santos, Carla A.; Marques, Isabel PaulaABSTRACT: Microalga Chlorella protothecoides materials were assessed as substrates for anaerobic digestion (AD) aiming at the simultaneous production of biogas/methane and pigments: whole autotrophic (AA) and heterotrophic algae (H); extracted heterotrophic microalgae from lipid production (HExt); and pretreated heterotrophic microalgae through enzymatic (HPEnz), autoclave (HPA), and ultrasound (HPU) processes....
Fermentation Wastes from Chrypthecodinium cohnii Lipid Production for Energy Re...
Eusebio, Ana; Moniz, Patricia; Silva, Teresa Lopes da; Marques, Isabel PaulaABSTRACT: Wastes generated during the cultivation of marine microalga Crypthecodinium cohnii and after the lipid extraction process, were energetically valorized into biogas production through anaerobic digestion (AD). The tested wastes were extracted microalgae (Ae) with hexane (AeH) using supercritical extraction methods (AeS) and the supernatant obtained after culture medium centrifugation (M). The digestion...
Promoting Sustainability: Wastewater treatment plants as a source of biomethane...
Baena-Moreno, Francisco M.; Malico, Isabel; Marques, Isabel PaulaWastewater treatment plants (WWTP) located in regions far from a high-pressure grid can produce renewable biomethane, which can partially substitute the natural gas locally consumed. However, the economic viability of implementing biomethane plants in WWTP has to be guaranteed. This paper uses the discount cash flow method to analyze the economic viability of producing biomethane in a WWTP located in Évora (Por...
Complementary substrates-brewery wastewater and piggery effluent assessment and...
Eusebio, Ana; Neves, André; Marques, Isabel PaulaABSTRACT: A hybrid anaerobic reactor was operated under the complementary effluents concept to reduce the unbalanced/inhibitory capacity of the provided piggery effluent. Brewery wastewater was chosen to complement piggery effluent (60:40% v/v, respectively). The HRT reduction from 6.7 to 3.0 days allowed the testing of an organic load increase from 4.5 to 10.0 g COD/L center dot d, which resulted in the almost...
Structure of microbial communities when complementary effluents are anaerobical...
Eusebio, Ana; Neves, André; Marques, Isabel PaulaABSTRACT: Olive oil and pig productions are important industries in Portugal that generate large volumes of wastewater with high organic load and toxicity, raising environmental concerns. The principal objective of this study is to energetically valorize these organic effluents-piggery effluent and olive mill wastewater-through the anaerobic digestion to the biogas/methane production, by means of the effluent c...
Promoting sustainability: wastewater treatment plants as a source of biomethane...
Baena Moreno, Francisco Manuel; Malico, Isabel; Marques, Isabel PaulaABSTRACT: Wastewater treatment plants (WWTP) located in regions far from a high-pressure grid can produce renewable biomethane, which can partially substitute the natural gas locally consumed. However, the economic viability of implementing biomethane plants in WWTP has to be guaranteed. This paper uses the discount cash flow method to analyze the economic viability of producing biomethane in a WWTP located in ...
Valorização energética de resíduos do processamento de castanha por digestão an...
Loureiro, F.G.; Eusebio, Ana; Marques, Isabel PaulaRESUMO: Os resíduos/efluentes oriundos da indústria da castanha constituem um potencial de valorização energética por digestão anaeróbia (DA). Resíduos sólidos (cascas e frações de polpa, “RS”) e lamas resultantes do tratamento de águas residuais (“LT”), ambas provenientes do processamento de castanha, foram anaerobiamente digeridas em condições batch e mesófilas de temperatura. Os RS, com um rácio substrato/in...