Abstract

LOPEZ BRAVO, Elvis et al. Properties of a compost obtained starting from residuals of the production of cane sugar. Ctro. Agr. [online]. 2017, vol.44, n.3, pp. 49-55. ISSN 0253-5785.

ABSTRACT The goal of the present work was to determine the main properties of a compost made from bagasse, slowness and ash, obtained from the sugar factory process. To elaborate the mixture a characterization of the raw material was carried out in function of the properties related to the composting process. During the process of anaerobic biodigestion, the control of the main monitoring parameters was carried out, until reaching the maturation state. In the raw material used a bulk density of 0.12 to 0.48 g cm^-3 was found, the pH oscillated between 5.2 and 8.7, while the electrical conductivity was in the range of 0,4 to 0,9 µ m^-1. On the other hand, the contents of P, K, Ca and Mg showed values between 0.3 and 2.8 %. Finally, a bulk density of 0.5 g cm^-3 was obtained in the compost. The carbon-nitrogen (C/N) ratio, showed a linear relation with respect to the time of composting, showing a suitable maturation of the mixture. The presence of N, P, K, Ca and Mg with values of 1; 1.3; 1.1; 2 and 1.1 % were also verified. After evaluating the results it is concluded that compost shows a suitable composition to be used as organic fertilizer in agriculture

Keywords : bagasse; filter cake; ash; density; moisture.

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