Banca de DEFESA: KESSYA RAYANNE DE ARAUJO SANTOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : KESSYA RAYANNE DE ARAUJO SANTOS
DATE: 06/07/2022
TIME: 09:30
LOCAL: sala reunioes
TITLE:

Modelling the potential for sustainable generation of bioenergy from landfills

KEY WORDS:

Landfill, Biogas, Municipal Solid Waste

PAGES: 174
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUBÁREA: Saneamento Ambiental
SPECIALTY: Controle da Poluição
SUMMARY:

The use of urban solid waste for the sustainable production of bioenergy is more than a diversification of the energy matrix of a country, it is an environmental, economic and social necessity. The use of biogas is an alternative for the production of bioelectricity due to its high calorific power, besides the capture and sequestration of carbon, which leads to negative emissions and, consequently, to the mitigation of climate change. Thus, finding economically feasible and sustainable ways to use this waste is a concern of the whole society and the application of mathematical models for estimating the potential production of biogas in landfills becomes plausible, both from the energy point of view, as from the environmental point of view. Therefore, the present study aims at, by means of an adequate mathematical modelling, estimating the methane production and bioelectricity potential from the four existing landfills in Alagoas, located in different climatic regions. For such, it was necessary to survey the information of the study area aiming at its characterization and obtaining the input data of the model used: Intergovernmental Panel on Climate Change - IPCC (2006). To this end, relevant data were collected, such as the average amount and gravimetric composition of SUW deposited in landfills and the climatic characteristics of the landfills studied. The choice of the degradation kinetic constant of the SUW components directly affects the behavior of the methane generation curve in landfills throughout the useful life and after closure, showing whether the methane generation can last for long periods or not. It was verified that the landfills located in the Atlantic slope, therefore, with similar regional characteristics and the same input parameters in the k model, presented the same behavior in their methane generation curves. Similarly, the same behavior can be noted in relation to the landfills located on the slope of the São Francisco River. It was also noted that the MSW gravimetric composition directly influences the calculation of the methane generation potential in landfills, considering that each waste component has a distinct DOC. The study of the potential to generate electric power showed that, as of the first year of generation until the year 2056, the Maceió, Metropolitano, Agreste and CIGRES landfills have the capacity to serve an average of 33,586; 32,196; 14,46 and 12,090 households, respectively, during the period analyzed.

BANKING MEMBERS:
Presidente - 1121201 - NELIA HENRIQUES CALLADO
Interno - 1774383 - EDUARDO LUCENA CAVALCANTE DE AMORIM
Interna - 1644323 - KARINA RIBEIRO SALOMON
Externo à Instituição - ALESSANDRA LEE BARBOSA FIRMO