Banca de DEFESA: MATHEUS TOMIM TARTARI
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.DISCENTE : MATHEUS TOMIM TARTARI
DATA : 27/03/2021
HORA: 16:00
LOCAL: Sala de videoconferência do Colegiado da Pós-graduação em Geologia - UFBA
TÍTULO:
Quality and phytoremediation of sufarce and groundwater in the urban area of Feira de Santana, BrazilPALAVRAS-CHAVES:
Water Quality Index; Trophic State Index; Hydrochemistry; Principal Component Analysis; Phytorremediation; Vetiver; Feira de Santana
PÁGINAS: 51
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Geologia
ESPECIALIDADE: Geologia Ambiental
RESUMO:
The natural water resources in Feira de Santana, Brazil, are used by the population, however the water is deteriorated by domestic effluents. The aim of this study is to evaluate both the current quality of groundwater and surface water along with the effectiveness of phytoremediation under these conditions. Water quality was determined using the Water Quality Index (WQI) most used in Brazil in association with the Trophic State Index (TSI) and its hydrochemical nature. The compatibility of current water uses was also assessed under brazilian law. Multivariate analysis was applied to assist in the cause-effect relationship on water quality and, finally, an evaluation was carried out to determine the effectiveness of Vetiver (Vetiveria Zizanioides) in the phytoremediation of natural waters impacted by domestic effluents. The WQI and the TSI showed terrible results, since most of the samples were classified in the two worst classes. The assessment of the compatibility of water uses with the current scenario was unfavorable, so that, according to Brazilian legislation, there are restrictions on current uses due to the poor quality. The multivariate analysis registered 3 groups, in which the first correlates the variables PO43-, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Apparent Color, Turbidity, Fecal Coliforms and the WQI, representing anthropic pollution. The second group contemplates the variables Na+, Ca2+, Mg2+, Cl-, Electrical Conductivity (CE) and Total Dissolved Solids (STD), representing the variables related to salinity, while the third group includes the variables N-ammoniacal, Potential Oxidation-Reduction (ORP) and Dissolved Oxygen (DO), partially representing the association of the bio-geochemical cycle of nitrogen with the influence of anthropic pollution. Phytoremediation using Vetiver showed evident efficacy in removing PO43- (88%), Nitrogen (81%) and Fecal Coliforms (100%), in addition to an increase in OD by 240% and WQI in 140%, being an alternative effective for the remediation of water contaminated with domestic sewage.
MEMBROS DA BANCA:
Presidente - 2298240 - LUIZ ROGERIO BASTOS LEAL
Interno(a) - 3071908 - MARIA DA CONCEICAO RABELO GOMES
Interno(a) - 031.086.865-34 - SERGIO AUGUSTO DE MORAIS NASCIMENTO - UFBA
Externo(a) à Instituição - CLELIA NOBRE DE OLIVEIRA