Evaluation of The Polluting Potential of Effluents From Bakery Makers of RPA6 in the City of Recife, Pernambuco

Objective: Analyze the polluting potential of effluents from baking industries, from the Political Administrative Region VI (RPA6) of the city of Recife, Pernambuco. Literature Review: Information is presented on the diagnosis of basic sanitation in Brazil, the sanitation framework and the objectives of sustainable development, and the contextualization of the bakery industry and the generation of effluents. Method: A bibliographical survey was carried out, in addition to the application of a semi-structured questionnaire and the effluent generation capacity was estimated, based on the theoretical volume of effluents calculated from the average monthly water consumption. Monthly collections of pre- and post-treatment effluents in ETE with anaerobic filter, for a period of 150 days. The parameters temperature, pH, turbidity, oils and greases, BOD, COD, E. coli, settleable solids and DO were evaluated. The parameters Total Ammonia Nitrogen (N), Phosphorus (P) and Surfactant Removal (LAS) were also evaluated pre and post-treatment for a period of 90 days. Results and Discussion: The studied treatment plant is efficient in reducing organic load, in addition to oils and greases, reducing negative environmental impacts arising from these parameters. However, it is recommended to include a tertiary treatment stage to seek to improve Nitrogen and Phosphorus indicators. Research Implications: Emphasize the need to separate industrial effluents from sanitary effluents, and for bakeries to implement a treatment system. Originality/Value: Show the importance of taking into account that this type of enterprise generates a high volume of effluents, and treatment is important to mitigate impacts and improve the quality of the environment for society.