Browsing CRETUS-Artigos by Issue Date
Now showing items 1-20 of 25
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Arsenic Retention on Technosols Prepared with Nanoparticles and Ferric Soil from Mine Drainage Water
(Hindawi, 2018)Mining activities generate a large amount of solid waste and acid drains that contain heavy metals in high concentrations. In wastewater of gold mines from Southern Ecuador (Portovelo), arsenic concentrations between 4.8 ... -
Trends in the Recent Evolution of Coastal Lagoons and Lakes in Galicia (NW Iberian Peninsula)
(MDPI, 2019)Coastal lagoons are habitats of great environmental value. However, they are currently subject to major threats, particularly due to increasing sea levels. This study aims to identify changes—both natural and induced by ... -
Targeted conversion of protein and glucose waste streams to volatile fatty acids by metabolic models
(Elsevier, 2019)Mixed-culture fermentations are recognised as suitable processes to valorise organic wastes and convert them into added-value products. One of the main issues of these processes is that the stoichiometry of the fermentations ... -
Equilibria and correlation of systems involving 1-hexyl-3-methylpyridinium trifluoromethanesulfonate
(Royal Society of Chemistry, 2019)Ionic liquids are being proposed for the improvement of many refinery-related applications where water and oil coexist. However, the lack of relevant thermodynamic data on equilibrium processes involving water, oil and an ... -
Assessment of the fate of organic micropollutants in novel wastewater treatment plant configurations through an empirical mechanistic model
(Elsevier, 2020)Novel wastewater treatment plants (WWTPs) are expected to be less energetically demanding than conventional ones. However, scarce information is available about the fate of organic micropollutants (OMPs) in these novel ... -
Designing a robust index for WWTP energy efficiency: the ENERWATER Water Treatment Energy Index
(Elsevier, 2020)The development and use of composite indexes has exploded in the last 15 years as a tool to summarise the large amount of information available nowadays. To ensure that composite indicators reflect faithfully the purpose ... -
Transient and Persistent Energy Efficiency in the Wastewater Sector based on Economic Foundations
(International Association for Energy Economics (IAEE), 2020)Given the increasing importance of the wastewater sector in terms of energy usage, the understanding of the level of energy efficiency of wastewater treatment plants (WWTPs) is useful to both the industry itself as well ... -
Selecting for lactic acid producing and utilising bacteria in anaerobic enrichment cultures
(Wiley, 2020)Lactic acid‐producing bacteria are important in many fermentations, such as the production of biobased plastics. Insight in the competitive advantage of lactic acid bacteria over other fermentative bacteria in a mixed ... -
Enhanced Photocatalytic Activity of Semiconductor Nanocomposites Doped with Ag Nanoclusters Under UV and Visible Light
(MDPI, 2020)Emerging contaminants (ECs) represent a wide range of compounds, whose complete elimination from wastewaters by conventional methods is not always guaranteed, posing human and environmental risks. Advanced oxidation processes ... -
Fenton and Photo-Fenton Nanocatalysts Revisited from the Perspective of Life Cycle Assessment
(MDPI, 2020)This study provides an overview of the environmental impacts associated with the production of different magnetic nanoparticles (NPs) based on magnetite (Fe3O4), with a potential use as heterogeneous Fenton or photo-Fenton ... -
Environmental assessment of viticulture waste valorisation through composting as a biofertilisation strategy for cereal and fruit crops
(Elsevier, 2020)Composting is a solid waste management alternative that avoids the emission of methane associated with its disposal in landfill and reduces or eliminates the need for chemical fertilisers if compost is applied. The main ... -
Unravelling the environmental and economic impacts of innovative technologies for the enhancement of biogas production and sludge management in wastewater systems
(Elsevier, 2020)The retrofitting of wastewater treatment plants (WWTPs) should be addressed under sustainability criteria. It is well known that there are two elements that most penalize wastewater treatment: (i) energy requirements and ... -
What is the best scale for implementing anaerobic digestion according to environmental and economic indicators?
(Elsevier, 2020)Wastewater treatment plants (WWTPs) are the most commonly used environmental management systems to ensure that water pollution is properly managed. The costs associated with energy consumption and sludge management are two ... -
Environmental analysis of servicing centralised and decentralised wastewater treatment for population living in neighbourhoods
(Elsevier, 2020)The planning and construction of large-scale wastewater infrastructure, such as sewerage networks and wastewater treatment plants, is undertaken by the public sector or by publicly regulated monopolies. Only on smaller ... -
Optimization of an enriched mixed culture to increase PHA accumulation using industrial saline complex wastewater as a substrate
(Elsevier, 2020)Polyhydroxyalkanoates (PHA) appear as good candidates to substitute conventional petroleum-based plastics since they have similar properties but with the advantage of being biodegradable. Wastewater streams with high organic ... -
Assessment of a fast method to predict the biochemical methane potential based on biodegradable COD obtained by fractionation respirometric tests
(Elsevier, 2020)The biochemical methane potential test (BMP) is the most common analytical technique to predict the performance of anaerobic digesters. However, this assay is time-consuming (from 20 to over than 100 days) and consequently ... -
Polyhydroxyalkanoates (PHAs) Production: A Feasible Economic Option for the Treatment of Sewage Sludge in Municipal Wastewater Treatment Plants?
(MDPI, 2020)Sludge is a by-product of municipal wastewater treatment plants (WWTPs) and its management contributes significantly to the operating costs. Large WWTPs usually have anaerobic sludge digesters to valorize sludge as methane ... -
Unraveling the environmental impacts of bioactive compounds and organic amendment from grape marc
(Elsevier, 2020)In a society that produces large amounts of solid waste, the search for new methods of valorisation has led to the development of techniques that make it possible to obtain new products from waste. In the case of bio-waste, ... -
Towards a digital twin: a hybrid data-driven and mechanistic digital shadow to forecast the evolution of lignocellulosic fermentation
(Wiley, 2020)The high substrate variability and complexity of fermentation media derived from lignocellulosic feedstocks affect the concentration profiles and the length of the fermentations. Not accounting for such variability raises ...