Medición del crecimiento microbiano en aguas residuales domésticas procedentes del barrio La Primavera, parroquia Lizarzaburu, cantón Riobamba, estimulado por tecnología de ondas de sonido audible.

Abstract

The theme of this research work is: The measurement of microbial growth in domestic wastewater from “La Primavera” neighborhood, Lizarburu Parish, Riobamba Canton, stimulated by sound wave technology audible, which communicates the effect of audible sound waves in the form of music in microbial growth in domestic wastewater, this work it was performed at the laboratory of Microbiology of the Faculty of Sciences. It was realized the design and construction of a prototype of generator of waves, it was made the determination of the treatments exposed to the wastewater samples according to frequency, intensity sound and exposure time, it was made the sampling and characterization physic- chemical of the domestic wastewater from the landfill in the neighborhood “La Primavera” , Riobamba Canton, it was used the methodology of the Standard Methods, in memory heterotrophic in plates, through the method of fluid plate and planting depth, to calculate the number of live bacteria that exist in the domestic wastewater. It was used the equipment such as laminar flow chamber, autoclave, incubator, stove petri dishes, test tubes. The results showed was an increase in microbial growth expressed in (UFC/mL) colony forming units per milliliter, using the second treatment, which it was characterized by a frequency of 20440 Hz, an intensity of 72 dB and an exposure time of 2 hours. It was performed a statistical analysis using the “T student”, which is used to assess whether there are significant differences between the amount of unit of signed colonies in untreated samples and samples with audible sound waves treatment units. It is recommended to the students and researchers replace the monophonic speaker, two stereo speakers. With the aim that increase the oxygenation capacity, when issuing waves audible sound in the stimulation of samples of domestic wastewater.