Banca de DEFESA: ARIANE SILVA CARDOSO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ARIANE SILVA CARDOSO
DATE: 17/05/2022
TIME: 14:00
LOCAL: Pós-Graduação em Engenharia Civil on line
TITLE:

Quali-quantitative Modeling of Water in the East Axis of the São Francisco River Integration Project: The Case of Upper Paraíba River Course

KEY WORDS:

water allocation; water quality; semiarid; sustainable water management.

PAGES: 196
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

The water resources presented in a qualitative and quantitative way in Brazil, especially in the northeastern semi-arid region, a region of irregular water availability. To minimize the problems of public hydraulic problems and guarantee the supply in the semiarid region, the São Francisco River Integration Project (PISF) has been developed. With the objective of serving 12 million people in Pernambuco, Ceará, Rio Grande do Norte and Paraíba, transferring water from the São Francisco river to other basins in these states. The sustainable management of these waters will be essential to guarantee their uses. To this end, this study aimed to evaluate the quality of water and its demands, in order to assist in the management of water resources in the Upper Paraíba river Course (PB), East Axis of the PISF. The assessment of water quality was carried out through the analysis of the monitoring of the 12 physical-chemical and biological parameters, between 2009 and 2019, and multiple uses, through the analysis of the grants issued for the Poções and Epitácio Pessoa reservoirs, in 2019. Simulations quali-quantitative measurements of water were carried out considering the presence and absence of water from the PISF, based on the application of the AcquaNet model. The main water demands identified in the Poções reservoir were public supply (1), and in the Epitácio Pessoa reservoir, public supply (1) and irrigation (583). The phosphorus, total dissolved solids and biochemical oxygen demand (BOD) parameters exceeded the limits recommended by Conama Resolution 357/05, Class 2, in most of the monitoring. The WQI was more expressive in the good (55%) and regular (30%) classifications, and the ETI, between eutrophic (31%) and mesotrophic (22%). Cyanobacteria blooms, with the occurrence of potentially toxic species, and exotic dinoflagellates were observed after the arrival of the PISF waters. The water allocation scenarios showed deficits in public supply and irrigation, in the simulations with and without PISF water. However, in scenarios with PISF water, or when it delivered a higher flow, these deficits were reduced. In the water quality scenarios, with PISF waters, the concentrations of dissolved oxygen, BOD, phosphorus and nitrogen tended to reduce, stabilize or maintain for a longer period, with results within the limits recommended by the legislation, but not always was enough to improve water quality. The results of this research provide information that support decision-making for sustainable water management and guarantee of public supply, contributing to an improvement in the quality of life of the beneficiary population.

BANKING MEMBERS:
Externo ao Programa - 3141471 - FABRICIO MOTTERAN
Externo à Instituição - GILBERTO QUEIROZ DE LIMA FILHO
Externa à Instituição - MARISTELA CASE COSTA CUNHA - UNEB
Presidente - 2304950 - WANDERLI ROGERIO MOREIRA LEITE
Externa à Instituição - ÉRIKA ALVES TAVARES MARQUES