Utilization of a new approach for the potassium concentration of sugarcane vinasse by reverse osmosis: case study
- 21 Downloads
Ethanol is an alternative fuel produced from sugarcane and economically very important for São Paulo state and Brazil. Vinasse, which has been traditionally distributed on the agricultural soil as an organic fertilizer, is the main residue of the ethanol production. Its dosage has been annually rationed in function of the potassium balance for reuse in agriculture. The vinasse potassium for ferti-irrigation can fully substitute potassium from mineral sources, but its transport is economically unviable from a determined distance. In this context, the paper presents the dehydration of sugarcane vinasse using a reverse osmosis technology to reduce the cost of transport until the sugarcane tillage. The main contributions are the reduction in the water content (concentration) and increase in the solid and the potassium content (13.8%). The study showed a payback value of 5.49 years.
KeywordsReverse osmosis Reduce transport costs Vinasse arrangement Potassium Sugarcane
The authors would like to acknowledge Empresa HS – Osmose Reversa for supplying the reverse osmosis machine, Clealco Sugar and Alcohol SA industry and Ferti-irrigation team of Clealco Sugar and Alcohol SA industry.
- Cibis E, Ryznar-Luty A, Krzywonos M et al (2011) Betaine removal during thermo- and mesophilic aerobic batch biodegradation of beet molasses vinasse: influence of temperature and pH on the progress and efficiency of the process. J Environ Manag 92(7):1733–1739. https://doi.org/10.1016/j.jenvman.2011.02.009 CrossRefGoogle Scholar
- Cruz LFLS. Viabilidade técnica/econômica/ambiental das atuais formas de aproveitamento da vinhaça para o Setor Sucroenergético do Estado de São Paulo. Escola de Engenharia de São Carlos, Universidade de São Paulo, 2011, Dissertaion Thesis in PortugueseGoogle Scholar
- Freire WJ, Cortez LAB (2000) Sugarcane Vinasse. Agropecuária Ed., Guaíba, RS, Brazil, 203Google Scholar
- Simões CLN, Sena MER, Campos R (2004) !Estudo da viabilidade econômica da concentração de vinhoto através de osmose inversa. XXIV Encontro Nacional de Engenharia de Produção, Florianópolis, BrazilGoogle Scholar