Análise gravimétrica de resíduos oriundos de uma ecobarreira no Lajeado Lambedor, Erval Seco – RS.

Abstract

With the increase in the world's population coupled with the growing generation of waste, the inappropriate disposal of waste originating in bodies of water has been expanding more and more. There are several factors that influence the increase of waste, such as the lack of information about the impacts generated by incorrect disposal and the negligence of people in relation to waste separation. In this context, the objective of this study was to analyze the gravimetry of the waste coming from an eco-barge installed in Lajeado Lambedor, in Erval Seco - RS. The choice of the point for installation considered mainly, besides the ease of access, being located after the urban area of the municipality. The model of the installed eco-barrier sought to be simple and low-cost, with a structure that contains a floating part and a submerged metal screen, and that the collections are performed weekly. The collections were made during 6 months, corresponding to the period from June to December. A total of 14.276kg of solid residues were collected, containing nine different types of materials: metal, plastic, furniture, paper, Styrofoam, textile material, diapers, wood, and rubber. Plastic was the most collected material, with 7,145 kg, representing 50.00% of the total, highlighting the plastic bags, packaging and PET bottles. This reflects the current trend of increasing use of disposable packaging. Thus, it can be seen that, even though the municipality has waste collection systems, there is still irregular disposal in the watercourse, and the highest concentration of materials occurs when there are volumes of precipitation.