92 documents found, page 1 of 10
Conductive materials change the composition and activity of butyrate-degrading ...
Braga, Cátia Sofia Neves; Costa, João Carlos Sequeira; Duarte, Maria Salomé; Martins, Gilberto; Pereira, Inês A. C.; Pereira, Luciana; Alves, M. M.Conductive materials (CM) can improve methane production (MP) efficiency in many methanogenic systems. However, several types of CM exist, and there are uncertainties regarding whether they all improve MP efficiency to the same extent and modulate microbial communities in a similar way. To investigate that, different microbial enrichments with and without activated carbon (AC), magnetite (Mag), and zeolites (Ze...
Optimizing anaerobic digestion of textile wastewater: the critical role of the ...
Barbosa, Sónia G.; Silva, Ana Rita Pereira; Salvador, Andreia Filipa Ferreira; Pereira, M. A.; Pereira, LucianaIntroduction: Among other resources, the textile industry consumes substantial volumes of water, thus producing highly contaminated effluents. These effluents are typically highly coloured and contain various chemical compounds (such as surfactants and dyes) and high salt concentrations, resulting in elevated chemical oxygen demand (COD), biochemical oxygen demand (BOD), and conductivity levels. Therefore, they...
Thriving in salty environments: aspergillus niger's halotolerance and BTEX biod...
Rodrigues, Kelly; Salgado, Ricardo; Galhanas, Dina; Bermudez, Victoria Maura S.; Silva, Glória Maria Marinho; Mata, Ana Maria Álvares Tavares daBenzene, toluene, ethylbenzene, and xylene (BTEX) can be found in marine and estuarine waters due to accidental spills of oil and derivatives, as well as in production water and effluents discharged from petrochemical plants. Addressing the bioremediation of these compounds in saline environments and effluents with elevated salinity levels is imperative. In this study, the halotolerance of Aspergillus niger was...
Unveiling microbial community dynamics during anaerobic bioremediation of pfas ...
Silva, Ana Rita Pereira; Gomes, Jéssica; Duarte, Maria Salomé Lira; Pereira, LucianaIntroduction: Per/polyfluoroalkyl substances (PFAS) known as 'forever chemicals,' are persistent pollutants entering ecosystems through natural and anthropogenic sources. Their extreme resistance to degradation, bioacummulation and severe health effects make them high-priority hazardous substances. Anaerobic digestion (AD) is promising for degrading recalcitrant pollutants in the presence of carbon materials (C...
Microbial activity of the inoculum determines the impact of activated carbon, m...
Braga, Cátia Sofia Neves; Martins, Gilberto; Duarte, Maria Salomé Lira; Soares, O. Salomé G. P.; Pereira, M. Fernando R.; Pereira, Inês A. C.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 of materials in different AD systems. In this study, we evaluated the influence of the inoculum's activity on methane production (MP) efficiency in the presence of different materials (activated carbon (AC), magnetite (Ma...
Predictive artificial neural networks as applied tools in the remediation of dy...
da Costa, Mauro F. P.; Araújo, Rinaldo dos Santos; Silva, Ana Rita Pereira; Pereira, Luciana; Silva, Glória M. M.Environmental pollution has become one of societys main concerns, which is why it is increasingly necessary to look for new effective remediation strategies. The applicability of artificial intelligence (AI) tools in different areas of knowledge has attracted the attention of the academic community due to their ability to process large datasets efficiently and deliver rapid, reliable predictions. Among them, ar...
Boosting methane production: the effect of sand, activated carbon, and nano zer...
Braga, Cátia Sofia Neves; Hoffmann, Nicolás; Pereira, Luciana; Salvador, Andreia Filipa Ferreira; Duarte, Maria Salomé Lira; Martins, GilbertoIntroduction: Methane production (MP) efficiency depends on the nature of the waste and the activity of hydrolytic, acidogenic, acetogenic and methanogenic microorganisms. Materials, like activated carbon (AC), are widely recognized for boosting MP from different types of waste. In contrast, more sustainable materials, like sand, received less attention. To better understand the effect of different materials on...
Bioremediation of endocrine disruptors (EDs): a systematic review of fungal app...
Viana, Camila Emanuelle Mendonça; Lima, Valquíria dos Santos; Rodrigues, Kelly; Pereira, Luciana; Silva, Glória Maria MarinhoEndocrine disruptors (EDs), including natural estrogens, such as 17-estradiol (E2) and synthetic chemicals (e.g., bisphenol A (BPA) and per- and polyfluoroalkyl substances (PFAS)), pose environmental and human health risks due to their ability to interfere with hormonal systems, even at trace concentrations and can lead to developmental, reproductive, and carcinogenic effects. These persistent compounds often e...
Efficient solar-driven degradation of diclofenac in aquatic environments using ...
Tlemcani, Saad Slimani; Fernandes, Ricardo Jorge Cunha; Silva, Ana Rita Pereira; Parpot, Pier; Canle, M.; Pereira, LucianaPhotocatalysis has gained considerable attention for the degradation of hazardous pollutants. In this study, the photocatalytic efficiency of Cu(0.50%)/TiO/Kaolin thin films was evaluated for the removal of diclofenac (DCF), a widely used non-steroidal anti-inflammatory drug, from aquatic environments. The photocatalytic activity of the thin films was assessed in three different water matrices: distilled water ...
Potential of magnetic silver-coupled zinc and copper ferrite nanoparticles as v...
Fernandes, Ricardo Jorge Cunha; Cardoso, Beatriz D.; Silva, A. R.; Pereira, Luciana; Coutinho, Paulo J. G.Increased environmental concerns about water pollution and scarcity have driven the development of innovative processes and technologies to address these issues. Photocatalysis using nanomaterials is auspicious, with proven efficiency in degrading different pollutants. Ferrite nanoparticles (MFe2O4) stand out for their dual functionality, photocatalytic activity and potential superparamagnetic behavior, that ma...