Lígia Amado
Instituto Politécnico da Guarda, Civil Engeneering, Faculty Member
As Zonas Húmidas Artificiais (ZHA) aplicadas ao tratamento de águas residuais são uma tecnologia relativamente recente quando comparada com as tecnologias de tratamento convencionais. Em Portugal as ZHA entraram em funcionamento apenas... more
As Zonas Húmidas Artificiais (ZHA) aplicadas ao tratamento de águas residuais são uma tecnologia relativamente recente quando comparada com as tecnologias de tratamento convencionais. Em Portugal as ZHA entraram em funcionamento apenas nos anos 90, sendo a maioria dos sistemas de Fluxo Subsuperficial Horizontal. Estes sistemas constituem um conjunto complexo de água, substrato, plantas, detritos, animais e microrganismos. O tratamento de águas residuais com recurso a este tipo de tecnologia envolve a separação e transformação de contaminantes através de mecanismos físicos, químicos e biológicos, que podem ocorrer simultânea ou sequencialmente à medida que as águas residuais percorrem o sistema. As ZHA de Fluxo Subsuperficial Horizontal podem ser caracterizadas por uma lagoa em que o leito contém um meio de enchimento poroso que suporta a estrutura radicular da vegetação e permite o desenvolvimento de biofilme. A água residual escoa horizontalmente através do meio de enchimento e não...
Research Interests: Engineering, Environmental Engineering, Chemical Engineering, Civil Engineering, Ecological Engineering, and 128 moreLandscape Ecology, Earth Sciences, Environmental Science, Geology, Hydrogeology, Environmental Education, Aquatic Ecology, Environmental microbiology, Quality, Water, Hydrology, Hydraulics, International Development, Landscape Architecture, Environmental Studies, Biochemical Engineering, Water quality, Water resources, Ecotoxicology, Catalysis, Restoration Ecology, Biotechnology, Energy, Bioenergy, Water and wastewater treatment, Bioremediation, Process Control, Water Engineering, Environmental Management, Corporate Sustainability, Environmental Sanitation and Phytotechnology, Wastewater Treatment, Rivers, Energy and Environment, Waste Management, Sustainable Water Resources Management, Urban Wetlands, New Materials in design, Landscape Urbanism, Stormwater, Environmental Sustainability, Water Resources engineering, Water Pollution, Biological Control, Materials Science and Engineering, Water Resources Management, Industrial wastewater Treatment, Biological Engineering, Integrated Water Resources Management, Chemical and Biological Engineering, Water Resources and Environmental Engineering, Bioremediation of wastewater, Planning, Biological Sciences, Lakes, Biofuels, Science for Conservation and Restoration of Cultural Heritage, Educación Ambiental, Environmental Sciences, Educação Ambiental, Water Supply, Derecho Ambiental, Marine, Water and Sanitation, Biological Wastewater Treatment, Ecologia, Freshwater, Meio Ambiente, Separation processes, Manual de Construcción de Reservorios de Agua de Lluvia, Biomonitoring, Medio Ambiente, Ecosystems, New, Gestão Ambiental, civil Engineer, Engenharia Ambiental, Caracterizaciones ambientales, Pollution, Renewable Energy Technologies, Waste Water Treatment with Constructed Wetlands, Groundwater Quality, Constructed Wetlands, Civil Engineerig, Contaminación del Agua, Ingeniería Sanitaria, Native Plants, Sanitation, Ingeniería Ambiental, Chemical and Environmental Engineering, Sustainable Landscapes, Greenhouse Effect, Engenharia Civil, Bioprocessing, Infiltration, Water Resources Environment, Valor costo y tarifas del agua, Proyecciones De Demandas De Agua, Chemical Engineer, Institutional Sustainability, Sustainability in construction industry, Water and Waste Water Engineering, Conceptualization, Engenharia do Ambiente, Water Quality, Civil and Environmental Engineering, Water Sanitation and Hygiene, Sanitasi, Sanitário, Kinetic Modelling, Bioproducts, Biomass Processing, Social Aspects of Sustainability, Decontamination, Gestión Integrada Del Agua, Subsurface Flow, Water Self Purification, Improving, Trace Contaminants of Water Resiurces, Energy and Process Engineering, Native Vines for Living Walls, Bio Swales, Restoration of Invasive Species, Rain Gardens, Geo Environmental Engineering, Chemical Enggineering, Environmental Science and Engineering, and Biological Systems Engineering
A research project was conducted during 2008-2009 in Portugal to evaluate the potential of reclaimed water from constructed wetlands for irrigation reuse. A 21 month monitoring campaign was set up in a Filtralite-based horizontal... more
A research project was conducted during 2008-2009 in Portugal to evaluate the potential of reclaimed water from constructed wetlands for irrigation reuse. A 21 month monitoring campaign was set up in a Filtralite-based horizontal subsurface flow bed. Results showed a significant fluctuation of the hydraulic loading rate that has influenced the hydraulic retention time and the wastewater characteristics over time and, therefore, the removal efficiencies for BOD5, COD, TSS, nitrogen and phosphorus were lower than the reported values for CW performance. If the hydraulic loading rate could be properly controlled the treatment performance, as well as the quality of the reclaimed water, can be improved considerably. The effluent concentrations of conductivity (EC), BOD5, COD, TN, K, Ca, Mg and phytotoxic elements (Na, Cl and B), showed a suitable quality for irrigation reuse according to different international standards, although it is necessary to improve the removal of phosphorous and a final disinfection must be implemented to decrease the pathogenic content.