Resumen

NINO, Zulay; PEREZ, Sergio  y  VASQUEZ, Marialena. Content of microorganisms in the cooling water of piping machine in a rubber plant. Rev. Téc. Ing. Univ. Zulia [online]. 2007, vol.30, n.Especial, pp.48-57. ISSN 0254-0770.

The excessive growing of microorganisms, surpassing the established levels; in the cooling water of piping machine (entubadoras) in a rubber company diminish the adhesiveness of band tires during its manufacturing, affecting the quality of the final product. This investigation has as purpose the evaluation of alternatives to control the content of microorganisms in the cooling water. For this, was necessary: determine the pollution focus; the adequate doses of biocides used to control growing of microorganisms, and to analyze the effect produced by biocides studied over adhesiveness of band tires. From this research the fact that the development of bacterium is found on the tank and cooling train, because the path that the water follows was found microorganisms free. In the evaluation to ideal conditions, the biocide proved showed a high level usefulness in relation to the one used nowadays; in the evaluation in situ the efficiency of the biocides was considerable reduced, the biocide used nowadays reduced half of its usefulness while the studied one reduced only in 33% in comparison with the evaluation done out of the equipment.

Palabras clave : Cooling water of piping machine (entubadoras); growing of microorganisms control; biocides; useful time life.