Urban solid waste from Maceió/AL: analysis of gravimetric composition under seasonal influences
DOI:
https://doi.org/10.6008/CBPC2179-6858.2020.003.0033Keywords:
Organic material, Recyclable, Waste, PercentageAbstract
The gravimetric composition of solid urban waste (MSW) is an important management tool, which makes it possible to know the quantities of the fractions of each waste generated. In this sense, the present study aimed to estimate the characteristics of the waste generated and sent to the municipal landfill in Maceió/AL, quantifying and classifying them as organic, recyclable and waste, by administrative regions, in addition to evaluating characteristics of variation in the profile of the residues that may be associated with seasonality. The data on the residues were obtained through monthly reports, referring to the weighing of the residues at the arrival of the trucks on the scale of the landfill, over a year. Analyzes of the gravimetric composition of the residues were carried out in order to identify them in relation to their classification in the classes of: organic, recyclable and tailings, in 8 administrative regions, based on the guidelines for the collection of residues. Based on the evaluations carried out, it was found that, on average, organic waste represents 67.45%, potentially recyclable materials 20.32%, and tailings represent 12.23% of all waste in Maceió. The study showed the average mass percentage of recyclable materials of 18.06% and 22.58%, of the total waste collected, in the months of June, July, August and November, December 2017 and January 2018 respectively, proving the related differences seasonality and festive events. Considering the results obtained, there is a need to invest in education, environmental awareness, information and promotion of social well-being, considering the disposal and proper separation of household solid waste.
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