Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/8258
Título: Ensaio exploratório de otimização do tratamento primário da ETAR de Beirolas para incrementar a eficiência energética. Aplicação de Moringa oleifera no processo de coagulação-floculação
Autor: Oliveira, Sara Amaral e Silva Lima de
Orientador: Brito, António José Guerreiro de
Duarte, Elizabeth Fernandes de Almeida
Teixeira, Ana Paula Sousa R.
Palavras-chave: wastewater
coagulation-flocculation
energy efficiency
Moringa oleifera
optimization
primary treatment
Data de Defesa: 2014
Editora: ISA/UL
Citação: Oliveira, S.A.S.L. - Ensaio exploratório de otimização do tratamento primário da ETAR de Beirolas para incrementar a eficiência energética. Aplicação de Moringa oleifera no processo de coagulação-floculação. Lisboa: ISA, 2014, 81 p.
Resumo: Currently the reduction of the amount and the wastewater treatment issues are very relevant in the area of Environmental Engineering. The need to explore the optimization of primary treatment, one of the integrated line treatment of liquid fraction of a wastewater treatment plant (WWTP), and increased production of biogas from sludge generated (solid fraction) unit processes was the motivation for the preparation of this dissertation. In the present study were collected and characterized representative samples of flow of input and output in the primary settling tank of the Beirolas WWTP. Coagulation-flocculation assays and crushed seed of Moringa oleifera in Jar test were conducted in order to understand the coagulant properties of this plant. M. oleifera is a plant native to northwestern India, Pakistan and Afghanistan. The removal efficiencies achieved for turbidity, COD, BOD5 e TSS are 86, 73, 66 e 79%, respectively. The reference scenario and an exploratory optimization, given some presuppositions and theoretical values were sketched. The obtained results indicate a decrease of 20% of affluent organic load to the secondary treatment, reducing energy costs for aeration, and an increased potential for energy production, about 5%. The synergistic effect of these two factors can increase energy efficiency in WWTP
Descrição: Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/8258
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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