594 documents found, page 1 of 60
Pharmaceutical removal through granular sludge systems: performance, operationa...
Costa, M.; Mesquita, D. P.; Ferreira, Eugénio C.; Quintelas, Cristina Maria CatalãoPharmaceuticals may end up in the environment through untreated wastewater, improper disposal of unused and expired pharmaceutical formulations, or effluents from manufacturing facilities. Many reports focusing on the occurrence of pharmaceuticals in the environment have been published in recent years. This environmental problem is also an issue of special concern for the European Union, which recommends the mo...
Monitoring the stability of aerobic granular sludge under increasing fractions ...
Silva, Sérgio Alves; Duarte, Maria Salomé Lira; Amaral, A. Luís; Ferreira, Eugénio C.; Alves, M. M.; Mesquita, D. P.This work investigates the effects of increasing fraction of slowly biodegradable chemical oxygen demand (sbCOD) on the morphology, stability, and performance of aerobic granular sludge (AGS) used for wastewater treatment. A sequencing batch reactor (SBR) was supplied with synthetic wastewater containing acetate as readily biodegradable COD (rbCOD) and increasing concentrations of oleate as slowly biodegradable...
Tratamento de águas residuais sintéticas contaminadas com carbamazepina usando ...
Costa, Mariana; Mesquita, D. P.; Salvador, Andreia Filipa Ferreira; Silva, Ana R.; Ferreira, Eugénio C.; Quintelas, Cristina Maria CatalãoUm reator descontínuo sequencial (SBR) inoculado com lamas granulares (AGS) foi utlizado para tratar água residual sintética contaminada com carbamazepina (CBZ) a três concentrações distintas: 2, 5 e 8 mg/L. As maiores taxas de remoção foram observadas a 8 mg/L, tendo-se, no entanto, observado grandes oscilações na eficiência de remoção ao longo dos três ensaios. Estas oscilações devem-se, muito provavelmente, ...
BioISO: an objective-oriented application for assisting the curation of genome-...
Cruz, Fernando João Pereira; Capela, João; Ferreira, Eugénio C.; Rocha, Miguel; Dias, OscarAs the reconstruction of Genome-Scale Metabolic Models (GEMs) becomes standard practice in systems biology, the number of organisms having at least one metabolic model is peaking at an unprecedented scale. The automation of laborious tasks, such as gap-finding and gap-filling, allowed the development of GEMs for poorly described organisms. However, the quality of these models can be compromised by the automatio...
Unravelling microbiome changes in aerobic granular sludge saline wastewater tre...
Paulo, Ana M. S.; Salazar, Oihane; Costa, Joana Sofia Gomes; Mesquita, D. P.; Ferreira, Eugénio C.; Castro, Paula M. L.; Amorim, Catarina L.Saline wastewaters mainly result from various industrial activities. In response to water shortage, seawater is increasingly utilized for diverse purposes, leading to an increased production of saline wastewater. The presence of salts in wastewater frequently impairs the efficiency of biological wastewater treatment technologies. Among these, aerobic granular sludge (AGS) has emerged as the most effective aerob...
Cookie composition analysis by Fourier transform near infrared spectroscopy cou...
Quintelas, Cristina Maria Catalão; Rodrigues, Cláudia; Sousa, Clara; Ferreira, Eugénio C.; Amaral, A. LuísThe consumption ofcookies is ever growing and during the COVID-19 pandemic reached record consumption values and it is imperative to guarantee the quality and safety of the products.Fourier transform near infrared (FT-NIR) spectroscopy, combined with chemometric techniques, provides a promising solution in that regard, due to its speed and simple sample preparation. The objective of this study was to investigat...
Innovative technologies for emerging issues in pharmaceuticals
Quintelas, Cristina; Mesquita, D. P.; Ferreira, Eugénio C.Pharmaceutical contaminants have been detected in the environment all over the world. The main sources responsible for their appearance in aquatic, soils and air environments include human usage for personal health or cosmetic reasons, veterinary usage to enhance growth or health of livestock and agricultural usage to fertilize soil and fight pests. The adverse effects of pharmaceuticals include toxicity, devel...
15 - Challenges and future perspectives for tackling PPCPs
Quintelas, Cristina; Mesquita, D. P.; Ferreira, Eugénio C.The improvement in the living conditions of the world population leads to an increase in the demand for pharmaceuticals and personal care products (PPCPs). Unfortunately, the massive use of these products contributes to environmental pollution since many of these products end up directly or indirectly being discharged in the environment. The appearance of personal care products in the aquatic environments, air,...
Quantitative image analysis for assessing extracellular polymeric substances in...
Melo, Antonio; Costa, Joana Sofia Gomes; Quintelas, Cristina Maria Catalão; Amaral, António Luís; Ferreira, Eugénio C.; Mesquita, Daniela P.Extracellular polymeric substances (EPS) play a vital role in biological wastewater treatment systems. This study investigates the impact of herbicide atrazine (ATZ) on the overall performance, EPS yield, composition, and sludge morphology in an activated sludge (AS) system operated in a sequencing batch reactor (SBR). Since conventional methods for analyzing EPS are time-consuming and releases residues, a new ...
Unravelling microbiome changes in aerobic granular sludge saline wastewater tre...
Paulo, Ana M. S.; Salazar, Oihane; Costa, Joana; Mesquita, Daniela P.; Ferreira, Eugénio C.; Castro, Paula M. L.; Amorim, Catarina L.Saline wastewaters mainly result from various industrial activities. In response to water shortage, seawater is increasingly utilized for diverse purposes, leading to an increased production of saline wastewater. The presence of salts in wastewater frequently impairs the efficiency of biological wastewater treatment technologies. Among these, aerobic granular sludge (AGS) has emerged as the most effective aerob...