Engenharia Química
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Navegando Engenharia Química por Autor "Cardoso, Olívia Michels"
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Plano de Negócio Acesso aberto Estudo da viabilidade técnica e econômica para implantação de uma indústria de produção de sacos para lixo e de resinas a partir da reciclagem de resíduos pós-industrial(2020) Francisco, Antônio Augusto Beckhauser; Gregório, Brenda Gaidzinski Alexandre; Lima, Bruna Felizardo de; Silva, Nicolly Souza Remor; Cardoso, Olívia Michels; Silva, Paulo Sérgio da; Silva, Tainá Rocha daThe impact caused by the inappropriate discard of plastic materials in the environment has become a major concern in the last years. Being today the 4th biggest plastic producer in the world, Brazil lies in a delicate position regarding the destination of this residue. Recycling comes in this context as a great alternative to reverse those effects, reduce the generation of CO2, and limit the use of necessary resources to the packaging and other consumer goods’ production. However, its application still happens in a very reduced way in the country, which needs more efficient management of solid waste, requiring a major effort in this sector. With that in mind, this present work was idealized with the intent of studying the technical and economic viability of implementing an industry to produce garbage bag and resins from recycled post-industrial waste, in the South of Santa Catarina. Thus, important aspects were listed for the development of the company. The chapters dedicated to Strategic Planning and Marketing describe the company’s plans for creating a strategic identity, choosing the location, market study and strategic positioning. Basic Engineering dealt with the description of the raw material used, process variables and equipment. Safety Engineering was responsible for describing the Regulatory Standard, adopting safety measures based on the mapped risks and elaborating the Good Manufacturing Practices handbook. Environmental Engineering made waste management planning, besides being responsible for necessary licenses. In the Quality Management section, the tools used to manage that meet the company’s standards were described, as the quality policy established and the parameters for control and quality assurance in the processes. Lastly, the financial data collection provided info to make it possible to accomplish an economic and financial feasibility analysis, estimating costs and evaluating the financial return on the investment.Relatório de Estágio Acesso aberto Uso de biorremediadores em uma estação de tratamento de efluentes sanitários(2020) Cardoso, Olívia MichelsNon-treated wastewater discharges cause the alteration of important properties of receiving water bodies. Wastewater treatment plants can also cause relevant impacts if not managed correctly. Therefore, it’s essential to understand wastewater treatment microbiology for optimisation of these system’s projects and operations, besides the use of technologies that minimize these impacts. Nowadays, there are a lot of methods that promise efficiency on treatment processes with relatively low costs. Among them, we can mention bioremediation techniques, in which it’s applied a selection of microrganisms to degradade effluent’s pollutants more efficiently. The study was conducted in a wastewater treatment plant, which was not obtaining adequate treatment, having complications throughout the process. Therefore, it was aimed to evaluate the use of bioremediators in the plant to verify the product’s performance with what it is specified by the fabricator. The bioremediator’s solution was applied daily, distributing portions of the liquid throughout the tanks and the aerated lagoon. By the end of the period, physical-chemical and biological analysis of raw and treated effluents were conducted, BOD, phosphorus and phenols being some of the parameters analyzed. Besides that, the odor around the station and the formation of sludge inside the tanks were also evaluated. An apparent inefficiency was obtained, especially in the removal of pollutants like phenols, ammoniacal nitrogen and sulfides. The removal of organic matter was apparently satisfactory when compared to environmental legislation, given the removal percentages estipulated by them. The high COD values and the high COD/BOD ratio on raw effluent indicates possible contamination by industrial waste. There was also a decrease in odors around the WWTP throughout the period, despite the high concentration of sulfides found in the treated effluent. No sludge was formed inside the tanks, except in the first one, possibly due to sludge discharg in the beginning of the process. Therefore, the bioremediator’s performance compared to what’s specified by the fabricator was satisfactory in part of the described topics, obtaining an apparent efficiency in the removal of organic matter and an improvement in relation to odors. For a more accurate evaluation, it is suggested to apply the bioremediator for a longer period and compare the effects obtained at the plant with and without incorporating the bioremediation into the process.