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Notícias

Banca de DEFESA: KENNETH MICHAEL DOLL
09/02/2017 10:55


Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE: KENNETH MICHAEL DOLL
DATA: 22/02/2017
HORA: 15:00
LOCAL: A SER DEFINIDO
TÍTULO: Evaluation of the Water Quality at the Mouth of the São Francisco River Brejo Grande/SE
PALAVRAS-CHAVES: Water resources, Water quality, São Francisco River, Salt water Intrusion
PÁGINAS: 105
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Sanitária
SUBÁREA: Recursos Hídricos
RESUMO:

Monitoring water quality especially fresh water is an indispensable tool, giving perceptiveness into the current problems threating the ecosystem and ultimately human health, whether they are naturally occurring or due to anthropogenic actions. This study aims to provide awareness of the critical changes happening at the mouth of the Sao Francisco River. The San Francisco River the most important natural resource to the Brazilian people living in the northeast of the country. Such challenges currently endangering the mouth of the San Francisco River are Dam constructions controlling the flow rate of the river, poor sanitary control of pollutants entering the water and a prolonged drought that has plagued the Northeast. The river covers a drainage area of 638,576sq km with a population of over 11 million inhabitants inside the limits of its basin. In this research the specific region will be the mouth of the River San Francisco River, located in Brejo Grande-Sergipe, Brazil, with a population of 7,742 inhabitants. A total of five points (with each point located further upstream than the previous) were chosen to identify the hydrological regime. The results were classified in accordance with the resolutions of the National Environmental Council (CONAMA). Results provided salinity levels above the acceptable amounts at the first three points with point 1 having an average of 15.0 PSU. The salinity levels show that the mouth of the river has already been compromised and saltwater is pushing further upstream. BOD levels varied between Classes 1, 2 and 3, with the majority being in class 2. Point 4 had elevated BOD levels up to 10 mg/ L indicating the presence of point source pollution. An immediate plan of action is needed to combat the saltwater intrusion at the mouth of the river and sanitary conditions need to be improved upon in order restore the Sao Francisco River back to a healthy and steady state.


MEMBROS DA BANCA:
Presidente - 2177263 - ANTENOR DE OLIVEIRA AGUIAR NETTO
Interno - 1834882 - ARIOVALDO ANTONIO TADEU LUCAS
Interno - 1295924 - CARLOS ALEXANDRE BORGES GARCIA
Externo ao Programa - 3336357 - MARIA DE LARA PALMEIRA DE MACEDO ARGUELHO

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