Diseño y construcción de un reactor de fermentación obscura para producción de bio- hidrógeno con lodos irradiados por radiación gamma

Abstract

The objective of the research was the generation of bio hydrogen through dark fermentation, a procedure that was successfully developed using sludge produced by Jean's Fashion Colors as raw material, using gamma radiation to activate them, design, and build the reactor, statistical analysis for its quantification. The methodology had several stages; the design and construction of four reactors with a storage capacity of 1 liter for the storage of textile muds irradiated with gamma radiation, which is generated in the aforementioned company in Pelileo canton, Tungurahua province. Four liters of sludge were collected, which were pre-treated with radiation and later control parameters such as pH, temperature, humidity for its production. Thus forming two groups of sludge, 2 liters of them were irradiated at a dose of 350 Gys in the J.L.SHEPARD model 109 equipment with a source of 60 Co, belonging to SCAN (MEER); each irradiated liter is stored in a reactor for Dark Fermentation and the other two liters are not irradiated (white) for comparison in the final production, the amount of gas produced within the reactors was quantified by an MQ8 electronic sensor, the information collected two-month monitoring was stored on a computer through an Arduino. The production of bio hydrogen in reactor A1 was 980 ppm and A2 with half the mass 440 ppm, showing that in the reactors where the irradiated sludge was stored at a dose of 350 Gys, the production of biogas is greater, while for the non-irradiated in both cases the maximum production was 280 ppm. It is concluded that gamma irradiation favors the production of bio hydrogen in a dose of 350 Gys in a time of two months, having full control of the physicochemical properties, being a process of economic and viable energy recovery. Dark fermentation and gamma irradiation of textile sludge are recommended for the production of bio hydrogen in an efficient and environmentally friendly way.