Compostagem de resíduos orgânicos oriundos da piscicultura e comércio de tilápias (Oreochomis niloticus) em pesqueiros: uma alternativa sustentável

• Ano de defesa: 2022
• Autor(a) principal: Machado, Érica Aparecida Pereira Castilho
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Tecnológica Federal do Paraná; Londrina; Brasil; Programa de Pós-Graduação em Engenharia Ambiental; UTFPR
• Palavras-chave em Português: Resíduos orgânicos; Tilápia (Peixe); Compostagem; Aquicultura; Sustentabilidade; Organic wastes; Tilapia; Composting; Aquaculture; Sustainability; CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA; Engenharia/Tecnologia/Gestão
• Link de acesso: http://repositorio.utfpr.edu.br/jspui/handle/1/30272

In Brazil, the creation of tilapia has great commercial representation, in 2020 it reached 802,930 tons, with revenue of approximately R$ 8 billion. Fish farming generates about 1 million direct and indirect jobs. Brazil is the fourth largest producer of tilapia in the world, a species that represents 60% of the country's production. The State of Paraná is a leader in production on a national scale, encompassing large enterprises dedicated to the creation and commercialization of several species of this animal. Such ventures are known as fisheries/”fish and pay” places, that are increasingly frequented, considerably increasing the consumption of the product. However, the disposal of waste originating from fish farming has been an environmental challenge, since the amount of organic waste from filleting can exceed 60% of the total weight of the fish, and the inappropriate disposal of these waste can damage the local fauna and flora. In this context, the development of simple and inexpensive technologies are of great importance, the composting technique can be a significant alternative, which may present good results in the management of organic waste in the fish chain. In this work, the composting of residues from the reproduction, creation and commercialization of tilapia was carried out, using chicken litter as a carbon source. The compounds produced showed satisfactory physical-chemical parameters and good results in germination tests in lettuce seeds when compared to commercial substrate, making their use viable, adding value to local family farming and favoring the practice of sustainable management of waste from regional fisheries.