Rediseño de la Planta de Tratamiento de Agua Residual, aplicando un sistema de humedal artificial con flujo superficial en la Extractora Teobroma.

Abstract

In order to improve the perfomance of palm oil extractor Teobroma and avoid environmental impact by discharging liquid waste from industry, plant wastewater treatment was redesigned for the extractor plant located km 34 Santo Domingo- Esmeraldas way road. Recognition of the research área was perfomed, the samples the current treatment plant was taken before and after the process at different time: 9h00 to 11h00 and 14h00to 15h00, obtaining a composite simple fot the respective analysis. Preliminary analyzes were performed in the laboratory of technical analysis of the Science Faculty at Polytechnic School of Chimborazo, with the following results: Biochemical Oxygen Demand (BOD 5) 2700 mg / L, Chemical Oxygen Demand 4500 mg / L, Oils and Fats 187.50 mg / L, suspended solids 494.50 mg / L, ammonia nitrogen 125 mg / L, total solids 6184 mg / L, 4200 UFC fecal coliform / 100ml. The parameters are outside of the áter ible limits of environmental regulations unified secondary environmental legislation (USER) text. With these parameters proper treatment for waste áter originating from the extractor was determined. With the redesign of the plant wastewater treatment removal percentages obtained were: 99.9% BOD 5, COD 99.9%, 57.9% ammonia nitrogen, suspended solids 99.9% 99.5% total solids , oil and grease 99.6%, 99.4% fecal coliforms. It is conclude that the treatment is used efficiently so that there is a high removal of contaminants from wastewater. Wetland implementing free flow and rapid sand filter is recommended to the extractor, to prevent contamination of the Rio Blanco river that run which crosses the Concordia canton.