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Located in Paraná, the Companhia de Água e Esgotos do Paraná (AGEPAR), had its name changed to Companhia de Saneamento do Paraná (Sanepar), on June 19, 1964 and currently aims to produce biofuel – ethanol with sewage waste.
Sanepar acquired a patent for the production of biofuel (Ethanol) as a result of the sewage treatment process. The title was claimed by Sanepar, in partnership with unicentro. This new technology based on waste for the production of biofuel (Ethanol), was registered by the INPI – National Institute of Industrial Property, which uses algae from anaerobic lagoons, which are found in sewage treatment stations, for the production of Ethanol. of 3rd generation. The research began with biologist Márcia Guareski, who works at Sanepar in Guarapuava, Paraná.
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Production of Biofuel (Ethanol) from sewage stations and UASB
During the research, waste from the sewage treatment ponds in the city of Nova Laranjeiras, and from the Anaerobic Reactor UASB of the Vassoural Sewage Treatment Station, in Guarapuava, Paraná, were used. The purpose of this study was to give a purpose to the algae that reproduced in the anaerobic treatment ponds, and that need to be removed, in order to have a reduction in the organic load and in the color of the effluent.
Analyzing some standards, such as the biomass hydrolysis time, the volume produced per dry ton of seaweed and alcohol content, and making a comparison with the production of ethanol obtained from sugar cane, the studies pointed out that, the processing of sewage is of paramount importance in the generation of biofuel (ethanol).
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Biofuel: Bioethanol has 3 classifications, depending on the raw material
As far as is known, based on the studies carried out with the biofuel, bioethanol was classified into 3 classes, the 1st, 2nd and 3rd generation, according to the material that gave rise to it. The production of ethanol from sugarcane, wheat, corn, etc., is the first generation, with a very simple process, and already increased in industries.
