A5019897603- Anaerobic Digestion and Biogas Production
- Microbial Metabolic Engineering and Bioproduction
- Water Quality Monitoring Technologies
- Water-Energy-Food Nexus Studies
- Membrane Separation Technologies
- Wastewater Treatment and Nitrogen Removal
- Process Optimization and Integration
- Biofuel production and bioconversion
- Metabolomics and Mass Spectrometry Studies
- Methane Hydrates and Related Phenomena
- Anomaly Detection Techniques and Applications
- Microbial metabolism and enzyme function
- Pharmaceutical and Antibiotic Environmental Impacts
- Ruminant Nutrition and Digestive Physiology
- Microbial bioremediation and biosurfactants
- Enhanced Oil Recovery Techniques
- Energy Load and Power Forecasting
- Veterinary Equine Medical Research
- Constructed Wetlands for Wastewater Treatment
- Carbon Dioxide Capture Technologies
- Chemical Analysis and Environmental Impact
- Water Quality Monitoring and Analysis
- Wastewater Treatment and Reuse
- Coconut Research and Applications
- CO2 Sequestration and Geologic Interactions
University of Minho
2015-2025
Conversion of unsaturated long chain fatty acids (LCFA) to methane in continuous bioreactors is not fully understood. Palmitate (C16:0) often accumulates during oleate (C18:1) biodegradation methanogenic bioreactors, and the reason why this happens which microorganisms catalyze reaction remains unknown. Facultative anaerobic bacteria are frequently found reactors operated at high LCFA loads, but their function unclear. To get more insight on role these bacteria, conversion was studied under...
Waste management and valorization are seen as pivotal drivers for adopting a circular economy. The production of volatile fatty acids (VFA) through anaerobic digestion (AD) fits perfectly into these emerging social industrial dynamics, being the VFA considered valuable products, namely in chemical industries. Therefore, this work focuses on AD, using wastes wastewaters, with high salinity content (20 g/L) continuous bioreactors. effect micro-aeration during acidogenesis high-salinity...
The conversion of organic matter to methane through anaerobic digestion (AD) process can be enhanced by different materials. However, literature reports show inconsistent results on the effect materials in AD systems. In this study, we evaluated influence inoculum's activity production (MP) efficiency presence (activated carbon (AC), magnetite (Mag), and zeolite (Zeo)). inocula included pure cultures methanogens, syntrophic cocultures, complex microbial communities, kinetic parameters...
This work investigates the effects of increasing fraction slowly biodegradable chemical oxygen demand (sbCOD) on morphology, stability, and performance aerobic granular sludge (AGS) used for wastewater treatment. A sequencing batch reactor (SBR) was supplied with synthetic containing acetate as readily COD (rbCOD) concentrations oleate carbon source. The sbCOD gradually increased, reaching up to 50% total influent (bCOD). Quantitative image analysis (QIA) revealed a significant shift in...
Per- and polyfluoroalkyl substances (PFAS) are recalcitrant pollutants which tend to persist in soils aquatic environments their remediation is among the most challenging with respect organic pollutants. Anaerobic digestion (AD) supplemented low amounts of carbon materials (CM), acting as electron drivers, has proved be an efficient process for removal compounds from wastewater. This work explores impact PFAS on different trophic groups anaerobic communities, effect nanotubes (CNT),...
Bioremediation of hydrocarbons in soil is a highly complex process, involving multiplicity physical, chemical and biological phenomena. Therefore, it extremely difficult to control boost the bioremediation these systems after an oil spill. A mathematical model was developed assist prediction decision-making regarding situ hydrocarbon-contaminated soils. The considered most relevant processes involved mass transfer biodegradation alkanes over time along depth flooded column. Aliphatic were...
The hydrocarbon-based economy is moving at a large pace to decarbonized sustainable bioeconomy based on biorefining all types of secondary carbohydrate-based raw materials. In this work, 50 g L−1 in COD mixture food waste, brine and wastewater derived from biodiesel production facility were used produce organic acids, important building-blocks for biobased industry. High salinity (12–18 L−1), different reactors configuration operated batch mode, initial pH tested. experiment I, stirred...
The COVID-19 pandemic caused by the SARS-CoV-2 virus led to changes in lifestyle and human behaviour, which resulted different consumption patterns of some classes pharmaceuticals including curative, symptom-relieving, psychotropic drugs. trends these compounds are related their concentrations wastewater systems, since incompletely metabolised drugs (or metabolites back transformed into parental form) may be detected quantified analytical methods. Pharmaceuticals highly recalcitrant...
Anaerobic degradation of long-chain fatty acids (LCFA) involves syntrophic bacteria and methanogens, but facultative anaerobic (FAB) might have a relevant role as well. Here we investigated oleate by synthetic co-culture Syntrophomonas zehnderi (Sz) Methanobacterium formicicum (Mf) FAB (two oleate-degrading Pseudomonas spp. I1 + I2). Sz Mf were first cultivated in continuous bioreactor under strict conditions. Thereafter, I2 inoculated microaerophilic conditions provided. Methane acetate the...
The exponential growth of technology in recent decades has led to the emergence some challenges inherent this growth. One these is enormous amount data collected by different sensors our society, namely management processes such as Wastewater Treatment Plants (WWTPs). These infrastructures comprise several treat wastewater and discharge clean water courses. Therefore, concentration pollutants must be below allowable emissions limits. In work, anomaly detection models were conceived, tuned...
Trace amounts of oxygen stimulate facultative anaerobic bacteria (FAB) within bioreactors, which was shown to correlate with enhanced methane production from long-chain fatty acids. The relationship between FAB and acid-degrading syntrophic communities under micro-aerobic conditions is still unclear. In this work, two co-cultures, Syntrophomonas wolfei + Methanospirillum hungatei zehnderi Methanobacterium formicicum, were assembled incubated short, medium acids, 0-10 % O