Banca de DEFESA: JOELMA FERREIRA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JOELMA FERREIRA SILVA
DATE: 19/07/2022
TIME: 14:30
LOCAL: Pos Graduação Engenharia Civil
TITLE:

Analysis of The Evolution of Water Quality in the North Axis Section of the Integration Project of the São Francisco River

KEY WORDS:

Semiarid; Water resources; Use of the soil; Water pollution

PAGES: 123
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Water of adequate quantity and quality is one of the most important bases for the healthy and sustainable development of human society and ecosystems. The irregular distribution of this resource directly affects the semi-arid region of the Northeast, which experiences constant periods of water vulnerability and droughts. The Integration Project of the São Francisco River with the Basins of the Northern Northeast (PISF) emerges as an alternative to address this imbalance, transferring water through two axes of artificial channels from a region that has an abundance to another that suffers from scarcity. The principal objective of this research was to analyze the evolution of water quality along a part of the North Axis of the PISF. Results of 11 physical, chemical, and biological parameters collected between 2014 and 2019 were used, corresponding to 8 water quality monitoring stations along the axis, including the diversion point, projected and existing reservoirs. The existing reservoirs presented parameters with the worst levels of limit violation recommended by CONAMA Resolution 357/2005, while the projected reservoirs presented values similar to the diversion point in the São Francisco River. All reservoirs and the diversion point showed high values in the parameters BOD and Total Phosphorus, indicating possible contamination by domestic sewage and/or non-point pollution generated by agriculture in the surroundings. The results of WQI, TSI and the application of multivariate statistics corroborate the difference between the water quality conditions in the projected reservoirs/diversion point and the existing reservoirs, which have not yet received transferred water. The analysis of land use in the surroundings of the projected reservoirs showed the existence of several communities in their vicinity and the possibility of several conflicts over water uses, mainly by the closest population that was not benefited with supply infrastructure or granted use for irrigation. It is considered important to strengthen the partnership between the institutions that carry out environmental control at different levels, to ensure effective monitoring, regularization and inspection of activities that impact on water quality, in addition to improving the environmental education of the population regarding the sustainable and rational use of PISF water resources.

BANKING MEMBERS:
Externo ao Programa - 3141471 - FABRICIO MOTTERAN
Presidente - 2304950 - WANDERLI ROGERIO MOREIRA LEITE
Externa à Instituição - ÉRIKA ALVES TAVARES MARQUES