Contaminación de canales de agua lluvia en zonas urbanas

Abstract

The rapid growth of cities and the waterproofing of grounds, it causes the natural loss of water infiltration, makes it necessary to build of channels for rainwater within the cities, due to the increase of runoff water in urban areas and avoid flooding. The drainage system of rainwater varies according to the needs of each city or specific area to which it is necessary a hydraulic canal. Although, the interaction of the inhabitants with drainage canal is not always friendly, so there are problems of environmental nature. Due to this, the importance and role of drainage canal system in urban areas is established to avoid floods, collecting, storing and transporting runoff water in many cities around the world and cities nationwide depending on the needs and characteristics of the place where are they. The types of channels and the different sources of contamination are identified, characterizing the largest solid waste and liquid contaminants and the main environmental impacts that cause, finding: The major pollutants are food, paper and plastic waste, which are the main culprits of causer the drainage system causing flooding, and water stagnation. Finally, the case of the Caño Córdoba canal in the city of Arauca is presented, where there is evidence of water stagnation in different points of the canal due to solid waste thrown by the community.