Production of Biogas and Biofertilizers from Only Sugarcane Waste in a Pilot-Scale Two-Phase Anaerobic Digester System
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 9
Abstract
Sugarcane is cultivated in more than 100 countries around the world. Industrial agriculture and processing of sugarcane results in the generation of large amounts of wastes such as straw, bagasse, ashes, vinasse, pressed muds and other liquid and gaseous residues. Thus, the sustainable management of sugarcane waste is a critical issue for the agroindustrial field.The purpose of this work was to produce biogas using sugarcane waste as the only substrate. The experiments were performed in a pilot-scale two-phase anaerobic digester properly designed and built to provide the right technology for the substrate to be processed.The performance of the digester was measured by the volumes of biogas and biofertilizers produced and their production yield, as well as the degradable efficiency of the system. Biogas and biofertilizers obtained were characterized by physicochemical analysis.The production of biogas and biofertilizers from only sugarcane waste was successfully achieved. The system proved to be highly effective using only a mix of sugarcane straw and sugarcane pressed mud as substrate. The process showed a higher degradation efficiency compared to other studies where conventional substrates were used. Moreover, the design of the scale-pilot digester enabled a better control of operational parameters in both hydrolytic and methanogenic phases.
Authors and Affiliations
Heini Romero, Erick Alvarez- Yanamango
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