Evaluation of the efficiency of a Venturi scrubber in particulate matter collection smaller than 2.5 mu m emitted by biomass burning

Autor(es)

Martins Costa, Maria Angelica ; da Silva, Bruno Menezes ; Coelho de Almeida, Samilla Gabriella ; Felizardo, Marcos Paulo ; Martins Costa, Ana Flavia ; Cardoso, Arnaldo Alves ; Dussan, Kelly Johana

• Tipo de documento: Artigo Científico
• Fonte: Environmental Science and Pollution Research; v. N/A, p. 18-pg., 2022-09-02.

Resumo

Energy demand has increased worldwide, and biomass burning is one of the solutions most used by industries, especially in countries that have a great potential in agriculture, such as Brazil. However, these energy sources generate pollutants, consisting of particulate matter (PM) with a complex chemical composition, such as sugarcane bagasse (SB) burning. Controlling these emissions is necessary; therefore, the aim was to evaluate PM collection using a rectangular Venturi scrubber (RVS), and its effects on the composition of the PM emitted. Considering the appropriate use of biomass as an industrial fuel and the emerging need for a technique capable of efficiently removing pollutants from biomass burning, this study shows the control of emissions as an innovation in a situation such as the industrial one with the use of a Venturi scrubber in fine particle collection, in addition to using portable and representative isokinetic sampling equipment of these particles. The pilot-scale simulation of the biomass burning process, the representative sampling of fine particles and obtaining parameters to control pollutant emissions for a Venturi scrubber, meets the current situation of concern about air quality. The average collection efficiency values were 96.6% for PM> 2.5, 85.5% for PM1.0-2.5, and 66.9% for PM< 1.0. The ionic analysis for PM< 1.0 filters showed potassium, chloride, nitrate, and nitrite at concentrations ranging from 20.12 to 36.5 mu g/m(3). As the ethanol and sugar plants will continue to generate electricity with sugarcane bagasse burning, emission control technologies and cost-effective and efficient portable samplers are needed to monitor particulate materials and improve current gas cleaning equipment projects. (AU)

• Processo FAPESP: 16/23209-0 - Implantação de nova linha de aproveitamento integral da mistura palha/bagaço de cana-de-açúcar via conversão termoquímica e química
• Beneficiário: Kelly Johana Dussán Medina
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular
• Processo FAPESP: 18/00697-5 - Controle de emissão e avaliação da deposição seca de partículas finas emitidas por processo de combustão de biomassa
• Beneficiário: Maria Angélica Martins Costa
• Modalidade de apoio: Auxílio à Pesquisa - Regular