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Ciliates as model organisms for the ecotoxicological risk assessment of heavy metals: A meta–analysis
No full textCiliates are key components of aquatic ecosystems, significantly contributing to the decomposition of organic matter and energy transfer to higher trophic levels. They are considered good biological indicators of chemical pollution and relatively sensitive to heavy metal contamination. In this study, we performed a meta–analysis of the available toxicity data of heavy metals and ciliates to assess: (1) the sensitivity of freshwater ciliates to different heavy metals, (2) the relative sensitivity of ciliates in comparison to the standard test species used in ecotoxicological risk assessment, and (3) the difference in sensitivity across ciliate taxa. Our study shows that the tolerance of ciliates to heavy metals varies notably, which is partly influenced by differences in methodological conditions across studies. Ciliates are, in general, sensitive to Mercury > Cadmium > Copper > Zinc > Lead > Chromium. Also, this study shows that most ciliates are more tolerant to heavy metal pollution than the standard test species used in ecotoxicological risk assessments, i.e., Raphidocelis subcapitata, Daphnia magna, and Onchornyncus mykiss. Threshold concentrations derived from toxicity data for these species is expected to confer sufficient protection for the vast majority of ciliate species. Our data analysis also shows that the most commonly tested ciliate species, Paramecium caudatum and Tetrahymena thermophila, are not necessarily the most sensitive ones to heavy metal pollution. Finally, this study stresses the importance of developing standard toxicity test protocols for ciliates, which could lead to a better comprehension of the toxicological impact of heavy metals and other contaminants to ciliate species
Vegetation filters for the treatment of nutrients and contaminants of emerging concern: adaptation of technology to high-salinity wastewater / Filtros verdes para el tratamiento de nutrientes y contaminantes de preocupación emergente: adaptación de la tecnología a aguas residuales con elevada salinidad
No full textPhotovoltaic and solar disinfection technology meeting the needs of water and electricity of a typical household in developing countries: From a Solar Home System to a full-functional hybrid system
No full textTecnologías electroquímicas microbianas para la industria alimentaria: aires nuevos en el tratamiento de aguas residuales
No full textLa industria alimentaria absorbe el 70 % del consumo mundial de agua, según los datos de la Organización de las Naciones Unidas para la Alimentación y la Agricultura (FAO). La industria cárnica suele aparecer como la gran consumidora de agua (15.400 litros por cada kilo de ternera producido), pero hay otras que también utilizan el preciado líquido de forma intensiva, como la del sector de bebidas
Ultrafast synthesis of exfoliated manganese oxides in deep eutectic solvents for water purification and energy storage
No full textHospital discharges in urban sanitation systems: Long-term monitoring of wastewater resistome and microbiota in relationship to their eco-exposome
No full textEvolutionary landscapes of Pseudomonas aeruginosa towards ribosome-targeting antibiotic resistance depend on selection strength
No full textAbandoned Mine Tailings Affecting Riverbed Sediments in the Cartagena–La Union District, Mediterranean Coastal Area (Spain)
No full textPoplar Vegetation Filters for the beer industry: Wastewater treatment combined with biomass production - Preliminary results
No full textThe use of land application as a means for wastewater treatment dates back to the ancient Greek, and reached its peak during the 19th century, before being replaced for currently conventional treatment plants. A vegetation filter is a type of land application system in which a forestry plantation is irrigated with pre-treated or treated wastewater for its treatment. The main aim of this project is to assess the viability of a poplar short rotation coppice in terms of wastewater treatment, using wastewaters from a local brewery for irrigation. To test the adequacy of different poplar genotypes for this specific scenario, a hydroponic experiment was carried out. We evaluated several plant development parameters and analysed the quality of wastewater before and after its use on the system. Here we present the detailed methodology and some preliminary results, as well as the currently and ongoing research on
this project
