Banca de DEFESA: JONAS LUDWIG DE BITENCOURT

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JONAS LUDWIG DE BITENCOURT
DATA : 30/08/2022
HORA: 14:00
LOCAL: IFRS Farroupilha
TÍTULO:

Method for determining the efficiency of vermicomposting of high density polyethylene packaging”.

PALAVRAS-CHAVES:

Biodegradation, Vermicomposting, Composting, Polyethylene, Polylactic acid

PÁGINAS: 22
GRANDE ÁREA: Engenharias
ÁREA: Engenharia de Materiais e Metalúrgica
SUBÁREA: Materiais Não-Metálicos
ESPECIALIDADE: Polímeros, Aplicações
RESUMO:

When analyzing the gravimetric composition of a sanitary landfill, it can be observed
that a large part of the material is formed by polymers from plastic bags, used to
store organic waste. It is believed that exploring alternatives to mitigate the impacts
resulting from the incorrect disposal of these wastes is necessary. Thus, it is possible
to segregate them more easily in landfills, and the organic waste can be valued
through composting or vermicomposting methods. In this way, an increase in the
useful life of the landfill is obtained and there is a considerable gain from an
environmental point of view. Therefore, the present work seeks to analyze the
degradation and mischaracterization of commercial polyolefins in vermicomposting
environments. Vermicomposting is a method of treatment and recovery of the organic
fraction of waste that uses annelid species. In this study, Eisenia fetida species were
used to determine their efficiency in the decomposition of polymeric material present
in disposable polyethylene packaging. The biodegradation of polymeric materials
was evaluated by infrared spectroscopy with Fourier transform, differential scanning
calorimetry, optical microscopy, mechanical tensile test and mass reduction. After
carrying out these tests, it was possible to observe degradation of the materials, as
well as a gain in efficiency in the vermicompost environment. For this purpose, the
vermicomposting and composting environments at temperature, humidity, hydrogen
potential and carbon-nitrogen ratio were controlled using sensors. Therefore, this
study effectively contributes to the scope of research regarding polymer degradation
as it establishes the degradation efficiency in a vermicompost environment with
commercial films.

MEMBROS DA BANCA:
Presidente - 1332290 - EDSON LUIZ FRANCISQUETTI
Interno - 3162537 - MARA ZENI ANDRADE
Externo à Instituição - RUTH MARLENE CAMPOMANES SANTANA - UFRGS
Externo à Instituição - LAURA DE ANDRADE SOUZA - IFRS
Externo à Instituição - ANA PAULA BILCK - IFRS
Externo à Instituição - ANA MARIA COULON GRISA - UCS