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- Title
Dealing with Plastic Waste from Agriculture Activity.
- Authors
Batista, Teresa; Cansado, Isabel Pestana da Paixão; Tita, Barbara; Ilhéu, Ana; Metrogos, Luis; Mourão, Paulo Alexandre Mira; Nabais, João Manuel Valente; Castanheiro, José Eduardo; Borges, Cátia; Matos, Gilda
- Abstract
The increase in agricultural production and food quality has forced the growing use of plastics in various activities. The plastic wastes are partially recycled in or outside Portugal; nevertheless, the contaminated wastes are sent to landfill. It is crucial to consider new models for their valorization at a regional level and from a circular economy perspective. In the scope of the Placarvões project, a study was elaborated, which included the types and quantities of plastics used in the irrigation area of the Alqueva Dam, in southern Portugal. The crops that use the most plastic are intensive olive groves, almonds, and table grapes, which represent more than 91% of total plastic waste. The production of activated carbons (ACs) is a solution to avoid plastics landfill. ACs were produced from plastic used on food packaging (PB-Samples) and sheeting film (PS-Samples) by activation with K2CO3. ACs presented well-developed textural properties (PB-K2CO3-1:1–700 and PS-K2CO3-1:1–700 exhibited a volume of 0.32 and 0.25 cm3 g−1 and an apparent surface area of 723 and 623 m2 g−1, respectively). Both ACs performed very well concerning four pesticide removals from the liquid phase. This solution is very promising, such these ACs could be applied in effluent treatments on a large scale.
- Subjects
PORTUGAL; WATER purification; TABLE grapes; FOOD packaging; AGRICULTURAL productivity; FOOD quality; PLASTIC scrap; LANDFILL management
- Publication
Agronomy, 2022, Vol 12, Issue 1, p134
- ISSN
2073-4395
- Publication type
Article
- DOI
10.3390/agronomy12010134