Radiación ultravioleta-c para desinfección bacteriana (coliformes totales y termotolerantes) en el tratamiento de agua potable

The region of Puno, in Peru, is described as a region with some health conditions that may be associated with the water quality, such as a high index of anemia or cases of acute diarrhea in children. This study aimed at monitoring the drinking water quality of the city of Ilave, in Peru, and determining possible correlations between physical-chemical and microbiological parameters, and the water distribution conditions, such as the period of water availability. Physical-chemical parameters (turbidity, residual chlorine, temperature, conductivity, and pH), microbiological parameters (presence of coliforms), and heavy metals (Zn, Mn, Ni, Fe, and Cu) were determined. All the parameters quantified were within the maximum permissible limits according to Peruvian regulations, except for residual chlorine, which was, for all the treated water samples, below the recommended value of 0.5 mg/L. Coliforms that should be absent from drinking water were detected in all the household samples. These results demonstrate the need for the inclusion of additional steps of re-chlorination along the distribution system to guarantee the maintenance of residual levels of chlorine that assure the microbiological quality of water. The quality of the drinking water was not observed to correlate with the period of water availability.

Rabies, by definition, is an acute and fatal encephalomyelitis that affects man and a large number of domestic and wild animals. The present research aims to evaluate the main rabies indicators in Chucuito, a province of the Puno-Peru Region; the analysis of the data registered in the forms of the zoonosis sanitary strategy has been carried out in the Environmental Health Unit of the Health network, Chucuito. It is concluded that, during the evaluated years, there was only one outbreak of human rabies in 2010, coinciding with a low coverage of canine rabies vaccination (53%), and with a case of canine rabies in the same year. On the other hand, three cases of canine rabies were reported in unvaccinated dogs, the bitten people were treated for the most part, along with adequate control of the dogs.