- Anaerobic Digestion and Biogas Production
- Edible Oils Quality and Analysis
- Algal biology and biofuel production
- Biofuel production and bioconversion
- Water-Energy-Food Nexus Studies
- Municipal Solid Waste Management
- Biodiesel Production and Applications
- Cassava research and cyanide
- Advanced oxidation water treatment
- Membrane Separation Technologies
- Electrochemical Analysis and Applications
- Agriculture Sustainability and Environmental Impact
- Water Quality Monitoring and Analysis
- Microbial Fuel Cells and Bioremediation
- Wastewater Treatment and Nitrogen Removal
- Microbial Metabolic Engineering and Bioproduction
- Global Energy and Sustainability Research
- Bioeconomy and Sustainability Development
- Recycling and Waste Management Techniques
- Enzyme Catalysis and Immobilization
- Dye analysis and toxicity
- Microbial metabolism and enzyme function
- Microbial Community Ecology and Physiology
- Agriculture Market Analysis Ukraine
- Photovoltaic Systems and Sustainability
National Laboratory of Energy and Geology
2013-2024
University of Minho
2010
National Institute of Engineering, Technology and Innovation
2001-2008
University of Lisbon
2005
The recovery of phenolic compounds, present in the olive fruits and its by-products, has been intensively studied by antioxidant properties. Olive mill wastewater (OMW) is a phenolic-rich industrial effluent that can be advantageously valorized anaerobic digestion to methane agricultural fertilizer productions. objective this work was evaluate antiradical activity OMW after order maximize valorization type effluents. digested flow obtained from an hybrid reactor treating at different organic...
In addition to energy benefits, anaerobic digestion offers other interesting advantages. The cork industry is of great environmental, economic and social significance in the western Mediterranean region, with Portugal being world-leading producer exporter. Cork boiling wastewater (CBW) a toxic recalcitrant organic effluent produced by this sector, which constitutes serious environmental hazard. However, there no documented research on treatment/valorization performed effluent. work presented...
Wastewater treatment plants (WWTP) located in regions far from a high-pressure grid can produce renewable biomethane, which partially substitute the natural gas locally consumed. However, economic viability of implementing biomethane WWTP has to be guaranteed. This paper uses discount cash flow method analyze producing Évora (Portugal). The results show that, under current conditions, it is unprofitable this WWTP. Since selling CO2 separated biogas may result an additional income, option was...
Abstract New data on biogas production and treatment of cattle wastewater were registered using an upflow anaerobic sludge blanket-anaerobic filter (UASB-AF) hybrid reactor under mesophilic temperature conditions (37 °C). The was operated in semi-continuous mode with hydraulic retention times 6, 5, 3 2 days organic loading rates 3.8, 4.6, 7.0 10.8 kg CODt m−3 d−1. Biogas volumes 0.6–0.8 m3 d−1 (3.8–4.6 d−1) 1.2–1.4 (7.0–10.8 d−1), methane concentrations between 69 75%, attained. removal...
Anaerobic digestion of olive mill wastewater (OMW) in admixture with anaerobically digested piggery effluent (ADPE) was investigated. Successive volumetric increases OMW ranging from 8 to 91% were mixed ADPE and treated through an upflow anaerobic filter promote gradual adaptation the microbial consortium. The response digester positive, only at v/v lower reactor performance obtained, suggesting that a concentration on order 83% highest terms efficiency stability reactor. At this inlet...
Abstract Combined anaerobic digestion of olive mill wastewater (OMW) and piggery effluent (PE) was performed to evaluate the operational conditions required develop a feasible method OMW treatment. The effect influent concentration composition on performance an up-flow filter treating mixture these wastes investigated by gradually increasing proportion in feed from 8% 83% volume. Organic loads ranged 3 10 kg COD m−3 d−1, with substrate organic load ratio (OMW COD/PE COD) varying...
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) heterotrophic algae (H); extracted microalgae from lipid (HExt); pretreated through enzymatic (HPEnz), autoclave (HPA), ultrasound (HPU) processes. AA was more suitable AD than H, it efficiently converted into methane (279 vs. 180 L CH4/kg VSin). In comparison, pretreatment had a positive effect on...
In the original published paper value of biomass potential for one residues (sewage sludge) is mistakenly presented as 1000-fold higher than correct value.This mistake does not affect proposed methodology and its application, but changes results case study and, consequently, discussion.Therefore, tables (Tables 3 and4) with corrected values are here submitted, together revised text in Results, Discussion Conclusions sections. ResultsThe assessment at different levels (theoretical, technical,...
A methodology was developed to assess the allocation of different types endogenous waste biomass eight technologies for producing electricity, heat, biogas and advanced biofuels. It based on identification key physicochemical parameters each conversion process definition limit values parameter, applied two matrices biomass. This enabled creation one Admissibility Grid with target per type technology, applicable a decision in routing energy production. The construction grid evaluation 24...