Evaluation of the C/N ratio obtained in the composting of sugar cane residues

The analysis of organic waste is very important for enforcement and advocacy of environment so that it is necessary to establish techniques of control and management of waste. The composting method is used for allows to control the process of decomposition by means of the analysis of parameters of control since an inappropriate process can generate negative effects on crops. The study focused to evaluate the content C/N ratio and identify the influence of the type of waste (bagasse, ash and filter cake), two inoculum (commercial and local) and type of aeration (turning and static pipes) applied on the composting process. The following parameters were determined: organic matter, total organic carbon and nitrogen at 0 and 44 days. The C/N ratio demonstrated a reduction on the process. However, it was noted there is a notorious in bagasse decline although it started with higher C/N ratio of 25%, a little less in the sugar cake and otherwise in the ash. The method of aeration tubes presented a higher content of organic carbon. At the end of the composting process, the content decreased. The nitrogen demonstrated to lower content of bagasse and higher with filter cake, higher content of nitrogen. At the end of the composting process, reduces the content of C/N ratio. The sugar waste combined are an important source of material organic for the improvement of soils, it presented a reduction at the end of the composting process without leaving the appropriate ranges.