Banca de DEFESA: JAIR BARROS AGRA FILHO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JAIR BARROS AGRA FILHO
DATE: 31/08/2023
TIME: 14:00
LOCAL: meet.google.com/ udd-yxav-bcs
TITLE:

CHEMOMETRICS APPLIED TO THE MONITORING OF HEAVY METALS AND ORGANIC COMPOUNDS AS INDICATORS OF ENVIRONMENTAL QUALITY IN THE SEDIMENTS OF THE IPOJUCA RIVER – TEXTILE POLE OF THE AGRESTE OF PERNAMBUCO

KEY WORDS:

Textile effluents. Chemometry. Heavy Metals. Sediments.

PAGES: 75
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

The textile industry is a giant of the economy of Pernambuco, and the Legal Productive Arrangement of the Agreste Pernambucano is the area of greatest influence of the sector. Despite its economic and social bias, this segment is considered to have enormous polluting potential, because in addition to solid waste, the amount of effluent generated is significant and not only due to the volume, showing a chemical complexity in its composition as dyes, surfactants, inorganic ions, wetting agents and other organic and inorganic compounds, which when they reach the rivers, pose ecological and public health risks. The sediments can be considered as a geochemical compartment responsible for the historical record of pollution, resulting from the activities of the laundries among others, which is used in the research as an indicator of the environmental quality of Ipojuca. The proposal aims to investigate the potential for polluting load of several inorganic compounds recorded in the sediments of the Ipojuca River within the city of Caruaru. Thus, sediment collection was carried out at 10 points along the urban stretch of the river and the concentration of 37 elements was evaluated. Chemometric methods were used to perform a multivariate analysis of the data and in order to evaluate the degree of toxicity the results were compared to international and national standards. To trace the origin of metal pollution, the Enrichment Factor and the analysis of local soil samples were used to evaluate its geochemical influence on the distribution of metals in the sediment, in order to determine the natural or exogenous origin. Regarding concentration and toxicity, As, Cr, Cu, Ni, Pb and Zn stood out presenting significant concentrations. With the exception of As, all other trace metals exceeded the minimum or maximum values at some collection point. The enrichment factor, soil and multivariate analyses showed that there is a natural and anthropic contribution in the disposition of metals in the sediment. It was found that there are points of contamination in Ipojuca, especially cooper. The textile pole is not the only source of pollution, requiring greater control, management management of effluents and waste released into the water body. 

COMMITTEE MEMBERS:
Presidente - ALEX SOUZA MORAES
Externo à Instituição - ENJOLRAS DE ALBUQUERQUE MEDEIROS LIMA
Externo à Instituição - OTÁVIO PEREIRA DOS SANTOS JUNIOR