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The aim of this study was to investigate the use of the relationship between carbon and nitrogen (C/N) and the index defined by the relationship between the Cation Exchange Capacity and Total Organic Carbon (CTC/COT) for monitoring the composting of poultry carcasses. The experiment consisted of composting poultry carcasses by the methods: composting windrow and aerated static piles (ASP). The materials used in composting were poultry litter, sugarcane bagasse, coffee straw and poultry carcass. The proportion of the materials used in the assembly of the different treatments was 0.3 kg of sugarcane bagasse or coffee straw for every 1 kg of poultry carcass and 2 kg of poultry litter. A compost bin with a base 1.5 m2 and working height of 1.5 m, and the ASPs were approximately 3 m long, 2 m wide and 1 m high. Based on these results it can be concluded that the C/N ratio was not adequate to describe the evolution of this type of waste composting, especially in the late phase of active degradation and the humification stage. The CEC/TOC index was more appropriate to describe the composting process. The CEC described the reduction of particle size and resultant increase in the specific surface, and is also related to the humification process. The TOC described the presence of organic matter and its reduction indicated a reduction in organic matter or organic matter mineralization.

PARÂMETROS PARA MONITORAMENTO DA COMPOSTAGEM DE CARCAÇAS DE FRANGO - DOI: 10.13083/1414-3984/reveng.v23n5p457-465