Banca de DEFESA: MARIA ELISA LEITE COSTA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : MARIA ELISA LEITE COSTA
DATE: 27/09/2022
TIME: 14:00
LOCAL: SALA DE AULA PPGTARH/UNB
TITLE:

DIFFUSE POLLUTION IN THE PARANOÁ LAKE BASIN

KEY WORDS:

KEY-WORDS: Runoff, Water Quality, First Flush, EMC, SWMM, Unit Load.

PAGES: 143
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

ABSTRACT The characterization of diffuse pollution in a catchment refers to the proper measurement of runoff water quality (WQ) along with hydrological data of rainfall and flow. Planning experimental monitoring is one of the major issues for evaluating this type of pollution (KOZAK, 2020). The objective of this thesis is to evaluate methods and techniques that lead to the identification of the generation processes of diffuse pollution in drainage catchments through monitoring in a single location, the outflow of the contribution area. This monitoring strategy was adopted in three urban catchments in the Federal District, CO, RFI and VP, chosen due to the characteristics of land use, carrying out hydrological monitoring (pluviometry and fluviometry) and water quality monitoring in these areas. With this data acquisition, it was possible to analyze the diffuse pollution with pollutograms, the determination of EMC and first flush, statistical analysis of the VP region; the hydraulic-hydrological modeling for quantitative analysis using SWMM (rainfall-discharge and implementation of mitigation practices) in the RF I region; comparison of the diffuse pollution data of the three study areas, with emphasis on land use and occupation issues, and finally the water quality modeling using the Unit Load model (pollutogram simulation). SWMM adequately simulated the runoff from RF I after calibration, however the modeling was still impaired due to problems in monitoring large flows. The analysis of WQ in the VP allowed the identification of sewage discharges (found during the drought period) and the most critical pollutants related to diffuse pollution, which are solids and organic matter. The Unit Load model can be considered a suitable tool for estimating pollutograms during long events in order to optimize monitoring resources. However, for the prediction of diffuse pollution generation, it proved to be deficient due to the diverse interaction of the pollutant build up and wash off processes along the catchment. This thesis made it possible to understand that monitoring for studies on diffuse pollution carried out in the outfall is adequate for the stormwater management in the catchment, as it is concise and efficient, and allowed the identification of the influence of land use and occupation processes, such as domestic sewage discharge, construction works and availability of adequate sanitary infrastructure, supporting the proposition of urban solutions for the reduction of this type of loads in the receiving water bodies.

BANKING MEMBERS:
Externo à Instituição - NILO DE OLIVEIRA NASCIMENTO - UFMG
Interno - 1646016 - ALEXANDRE KEPLER SOARES
Externo à Instituição - CRISTÓVÃO VICENTE SCAPULATEMPO FERNANDES - UFPR
Presidente - 404772 - SERGIO KOIDE