Publications by authors named "Eunice Maia de Andrade"
Reservoir eutrophication in the Brazilian semiarid: modeling of sediment removal and control of external loads as remediation measures.
Environ Sci Pollut Res Int
March 2025
Eutrophication, driven by nutrient enrichment, poses a global challenge, impacting the ecosystem, water supply systems, and ultimately, human health. In this research, water unavailability due to phosphorus pollution was assessed in Brazilian semiarid reservoirs with data measured over a decade. Management strategies to control eutrophication were simulated using physical-mathematical modeling of the phosphorus budget in the water and sediment layers.
View Article and Find Full Text PDFThe aim of this study is to obtain the translocation factor by application of landfill leachate (LL) diluted in public irrigation water (IW). Pennisetum purpureum Schum (elephant grass) was cultivated for 83 days in an experimental water reuse unit. The present work was developed at the Experimental Water Reuse Unit (UERA), on the UFERSA campus in Mossoró, RN, Brazil.
View Article and Find Full Text PDFArticle Synopsis
- - The study examined how water quality changes over time, particularly in dry areas, by analyzing physical, chemical, and biological metrics across seven sampling points in a tropical semi-arid region.
- - Researchers identified nine classes of phytoplankton and ten families of macroinvertebrates, using statistical methods to classify sampling points into three main groups based on water quality similarities.
- - Findings revealed that certain phytoplankton compositions and low macroinvertebrate diversity suggest worsening water quality, highlighting the need for efficient water quality monitoring to reduce costs while maintaining effective assessments.
Article Synopsis
- The study employed multivariate statistical techniques, specifically cluster analysis (CA) and principal component analysis (PCA), to assess variations in water quality and contamination sources in an aquifer fed by the Trussu River in Ceará, Brazil.
- Groundwater samples from four shallow wells were collected over a period from October 2002 to February 2004 and analyzed for 13 water quality parameters.
- Cluster analysis revealed two distinct zones related to geographic and temporal differences, with the upland region influenced by agricultural activities and the downland region affected by human settlements, while PCA identified key factors affecting water quality in each zone, primarily linked to natural processes and anthropogenic impacts.