Avaliação do efeito da inoculação de fungos termofílicos em pilhas de compostagem de lixo urbano

• Ano de defesa: 2014
• Autor(a) principal: Fetti, George Lucas Rodrigues [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Ecologia microbiana; Fungos termofilicos - Inoculação; Adubos compostos; Residuos organicos como fertilizantes; Thermophilic fungi
• Link de acesso: http://hdl.handle.net/11449/110638

The high migration of the remaining population from rural to large urban centers in recent decades, has led to a greater production of waste, mainly organic, home-grown, reaching 55.5 mi tonnes in 2011. Whereas approximately 50% of urban waste in Brazil is composed of organic matter, this could be reused by the composting process. Composting is the transformation of organic waste into a relatively stable and low in organic matter product, which can be recycled as organic fertilizer in agriculture or as a corrective of degraded soils. Based on these problems, we proposed the present work aims to better understand the fungal microbiota of the different stages of composting, isolates them and reintroduce them in the process, seeking an accelerated biodegradation of organic matter in municipal waste in order to reduce production costs of organic compost, increase acceptance of the technique as an environmentally friendly alternative to open dumps and generate a decrease in the amount of waste sent to landfills. In laboratory tests, the fungal inoculum was shown to improve the composting process, the faster decline in organic matter and decrease in toxicity of the finished product, but in the pile sacale tests inoculum showed no great variation from the traditional composting, not degrading the organic matter faster, but generating accelerated decrease of toxicity