Rediseño de la planta de tratamiento de lixiviados del complejo ambiental para la disposición final de residuos sólidos del cantón Santo Domingo.

Abstract

The objective was the redesign of the environmental complex for the final disposal of solid waste’s leachate treatment plant of Santo Domingo canton, being the leached liquids very complex and highly contaminated it increases the concern about the population’s welfare , the environmental care, the canton’s development and the treatment given, were the reason why the redesign was proposed based on the literature analytical review and collection of technical data through the in situ design and plant operation verification, the flow generation was estimated by the volumetric method based on heights differentiation, the characterization of leachates was used to determine the treatment plant efficiency based on the biochemical oxygen demand removal percentage (BOD5), oxygen chemical demand (COD) and turbidity, a treatability test was carried out based on the jar test with a flocculants dosification 4 mL, aluminum polychloride 8 mL, agitation of 1 minute at 100 rpm and 3 minute at 50 rpm, through the use of these methods we found as a result that the plant is badly operate and it produces 26 m3 leachate a day that is not treated in any stage whereby a vertical artificial subsurface wetland was designed with a surface area of 45,662 m2, a retention time of 0,354 days, width of 0,56 m, length of 81.54 m and an amount of medium sand filtering 15,981 m3, sand gravel 5,479 m3, medium gravel sand 4,566 m3. Concluding that it is necessary to redesign and optimize all the treatment phases implemented in the plant, it is recommended to give emphasis to give emphasis to the operational processes and give the facility’s maintenance.