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Length-mass relationships for macroinvertebrates in the Choghakhor international wetland, Iran
No full textValidating full scale metland solutions for decentralized sustainable wastewater treatment: techno-environmental and geospatial analysis
No full textIn recent decades increasing pressures on natural resources has drastically altered demographic dynamics and climate change. Currently, different lines of action are being pursued for the sustainable management and conservation of global water resources. In the field of wastewater treatment, the problem lies in small population centers where the scarcity of technical and economic resources compromises the effectiveness of conventional treatment methods. METland® technology emerges from the integration of Microbial Electrochemical Technologies (METs) into constructed wetlands. Integration improves treatment efficiency by replacing an inert material (gravel) with a biocompatible and electro-conductive material (ec-biochar or coke). Such designs maximize the transfer of electrons between ec�materials and electroactive bacteria. This makes full-scale METlands ® a valid, sustainable, efficient, and robust wastewater treatment solution, with low operation and maintenance costs, for small and remote population centers. In this thesis, new strategies have been explored to improve the design and operation of full-scale METland® systems. A Life Cycle Analysis (LCA) was performed, evaluating the impacts of different operational modes on each environmental category. To explore the geospatial application of METlands, a process to evaluate optimal locations for their implementation was developed. The proposed methodology can be used to help decision�makers employ METland® worldwide using multi-criteria evaluation (MCE) techniques applied to Geographic Information Systems (GIS) with a final sensitivity analysis (SA) to optimize and validate the mode
Assessment of CHADFDM satellite‐based input dataset for the groundwater recharge estimation in arid and data scarce regions
No full textChapter 8: New frontiers and outlook
No full textThe main goal of this chapter is to outline the areas for further development and research of microbial desalination cells (MDCs) for production of low energy drinking water. This chapter highlights the challenges ahead in the context of membrane and electrode development, scaling-up, construction, environmental challenges, capital and operational costs, social acceptancy and further identification of niche areas for MDCs
MCE–GIS evaluation for the potential location of RO membrane recycling plant in the Segura River Basin, Spain
No full textThe large amount of end-of-life (EoL) reverse osmosis (RO) membrane modules needed in desalination processes represents an important opportunity for material valorization. Alternative waste management routes are being developed worldwide to give them a second life within the Circular Economy (CE) principles. The aim of this study is the potential location identification for an EoL-RO direct recycling plant in the Segura River Basin, one of the most important desalination areas of Spain (with more than 42% of the Spanish desalination capacity). Using Geographical Information System (GIS) technologies, a Multi-criteria evaluation (MCE) methodology has been used for the suitability assessment for the membranes recycling plant best location. The evaluated criteria have been divided into restricted (natural protected areas, rivers, roads, reservoirs, supply channels and flood-prone areas) and conditioning (land use, topography and distance to shoreline). The spatial analysis shows that the 0.8% and 4.7% of the river basin area are optimally and highly suitable, respectively, for the recycling plant location. On the contrary, the totally restricted areas are more than 23% of the basin. This work will be the base for further environmental and economic studies of the reverse logistics: EoL-RO modules collection and the distribution of recycled products
Spatio-temporal distribution of microplastics in a Mediterranean river catchment: The importance of wastewater as an environmental pathway
No full textMETland, sistema innovador y sostenible para el tratamiendo de aguas residuales
No full textMETland es una tecnología basada en la integración de las tecnologías
electroquímicas microbianas y humedales para el tratamiento de aguas residuales (sistemas que imitan a la naturaleza para depurar agua). Como resultado se consigue tratar de forma descentralizada el agua residual aumentando la eficiencia de depuración, sin aporte de energía o reactivos químicos. Con el objetivo de optimizar futuros diseños se han aplicado dos metodologías de evaluación ambiental. Tecnologías de Información Geográfica para la localización de zonas óptimas de implantación y Análisis de Ciclo de Vida para determinar los impactos ambientales
