Banca de DEFESA: RAFAELA JULIA DE LIRA GOUVEIA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAFAELA JULIA DE LIRA GOUVEIA
DATE: 24/07/2024
TIME: 09:00
LOCAL: Sala de Aula 01 do PPG em Engenharia Ambiental
TITLE:

Reuse of textile dyes from the sludge of effluent treatment plants in laundries in agreste de Pernambuco

KEY WORDS:

reuse, textile effluent, environmental impact, solar energy

PAGES: 51
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

Brazil is one of the world's largest producers of textiles, and the state of Pernambuco is considered one ofthe largest textile industrial centers with great importance for the country's economy. As a result, theproduction chain generates considerable impacts on the environment, and this accumulation of waste is amajor problem for the environmental health of the population and for government and private agenciesthat manage urban waste. This makes clear the need and importance of environmental conservationmeasures and the development of strategies to promote sustainable, differentiated growth, with social andenvironmental responsibility. In order to mitigate the environmental impacts of the production of dyesand pigments from chemical processes in the textile industry, this research sought to investigate theremoval potential of a Bacterial Cellulose (BC) membrane using glycerol as a carbon source and thesubsequent proposal of a furnace in the treatment of textile effluents by adsorption using a solar energysource to aid in the recovery of dyes in textile industries. CB was produced under controlled conditionsand then the physicochemical, structural and morphological properties of the bioadsorbent werecharacterized using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy(SEM). Ten different dyes were collected from textile laundries in Pernambuco for adsorption studies.The chemical composition of the dyes was evaluated by Electronic Absorption Spectroscopy (UV-Vis),Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and Thermogravimetry (TGA).The data obtained was also statistically analyzed using Principal Component Analysis (PCA). Thetreatment tests were carried out in a 24-hour adsorption system, using 100 mg of BC and 20.0 mg L-1 ofdyes. The research therefore aimed to treat textile effluents using membrane filters of microbial origin asa prototype for the reuse of textile sludge. The most satisfactory response was for phthalocyanine dyes,with removal rates of up to 43% under the optimized conditions.

COMMITTEE MEMBERS:
Presidente - ALEX SOUZA MORAES
Externo à Instituição - OTÁVIO PEREIRA DOS SANTOS JUNIOR
Interno - ROMILDO MORANT DE HOLANDA