Técnica de coagulação/floculação combinada com processo de separação por membrana, aplicada ao tratamento de efluente de lavanderia de jeans

• Main Author: Rodrigues, Matheus da Silva
• Publication Date: 2023
• Format: Bachelor thesis
• Language: por
• Source: Repositório Institucional da UTFPR (da Universidade Tecnológica Federal do Paraná (RIUT))
• Download full: http://repositorio.utfpr.edu.br/jspui/handle/1/33568
• topic: Resíduos industriais; Indústria têxtil; Osmose; Factory and trade waste; Textile industry; Osmosis; CNPQ::ENGENHARIAS

The textile industrial effluent is a problem for the environment. In addition to having a high presence of color, it is also loaded with residual chemical agents from the beneficiation/finishing processes, and may often contain heavy metals. The Textile sector consumes thousands of liters of water every day and consequently generates a high volume of effluent, which makes treatment difficult due to high contamination and the large volume of input. Thinking about alternatives that can help to mitigate this problem, the work presents effluent treatment practices, using a combination of techniques: The primary treatment of Coagulation/Flocculation (CF) and the tertiary treatment of Process of Separation by Membranes (PSM), with Reverse Osmosis (RO). To carry out the experimental tests, the effluent generated during the practical classes of improvement of Jeans pieces, in the laboratory of industrial laundry of the UTFPR was used and collected in the homogenization tank of the effluent treatment station of the Federal Technological University of Paraná (UTFPR) campus Apucarana – PR. A compact treatment system was built using a fifty-liter gallon and a wooden easel, the gallon served as a feed tank, where the coagulant and the stirrer were introduced, the decantation and installation of the filtering system also took place in the gallon. Inverse Osmosis, receiving the housing coupling with the membrane and the water pump. Finally, after carrying out the procedures described in the methodology, it was possible to obtain satisfactory results regarding the reduction of turbidity, electrical conductivity, COD, color and total solids, the coloristic analyzes returned positive results, demonstrating that the treated effluent was adequate to carry out the dyeing proposed in this work. Evaluating the results obtained, it was concluded that the combination of techniques was effective in the treatment of the laundry effluent under the conditions of this work, industrially speaking, its application is not economically viable, since the membrane permeate flow was low.