Evaluación de cargas contaminantes del afluente de la planta de tratamiento de aguas residuales de Puerto Arturo del Cantón Ambato para el diseño de indicadores operacionales

Abstract

The pollutants of the tributaries of the waste water treatment plant of Puerto Arturo, from Ambato canton; was carried on for the design of operational indicators. The variation of the daily flow was determined by a hydrograph, identifying peak hours. Composite waste water sampling was made during one hour at time intervals of 30 minutes twice a month. The days were chosen randomly at the beginning and end of the month during the period from April to September 2015. The samples were analysed both, qualitatively and quantitatively. Preliminary results were used to measure the pollutant load, expressed in kg per day (kg/d) it relates the flow to the concentration of the parameters of interest: chlorides, BOD , COD, fluorides, suspended solids, total dissolved solids, sulphides, surfactants. These parameters were considered as the presence of the elements previously mentioned; indicates the degree of contamination and potential sources. The collected data were analysed by descriptive, analytical and statistical graphs. The final findings: chlorides 237,37 and 0,90, BOD xvii

5 5 156,42 and 15,21, COD 317,12 and 32,59, fluorides 3,23 and 0, suspended solids 542,31 and 8,21, TDS 868,57 and 48,24, sulphates 95,64 and 0.06, surfactants 903,21 and 0, maximum and minimum respectively. It was concluded that the pollution load and flow are directly related, which made possible to develop an operational indicator based on flow and pollutant load because the flow allows us to design the volume of the component, and the pollutant load shows which are the components that the treatment plant wastewater must have in order make the treatment be effective. It is recommended to conduct more comprehensive studies of pollution in the tributaries to enhance the treatment of wastewater.