title: Immature Compost Filter Cake
design: In the sugar mills, is generated in large quantities a by-product of the process called filter cake. Especially rich in phosphorus and water, this by-product is used as a natural fertilizer in the soil and in compost. However, the composting needs is human and high operational material and therefore not all plants can have the resources to perform such a process. This procedure aims to stir from time to time the material in the composting process in order to reduce the system temperature and control the proliferation of anaerobic microorganisms. An alternative is to filter cake batteries and leave it to time, which provides the development of a thermophilic microbial community and anaerobic the first weeks. This anaerobic microbial community, are responsible for consuming the nutrients that could be available to the plants when the resultant compound was used as fertilizer in soil. In this study, we address the analysis of microbial communities derived from immature compost filter cake aged 60 days.