Diseño de una planta de tratamiento de aguas residuales para la parroquia de San Antonio de Bayushig.

Abstract

The design of sewage treatment plant for San Antonio de Bayushig parish located at Penipe Canton, Chimborazo-province proposes to offer a proper waste water treatment. The systematic samplings to collect the water sample was made during four consecutive weeks, with the purpose of applying characterization tests and recognize 6 from 17 parameters analyzed, which are outside of the norm. The parameters are: Nitrogen 25,80mg/L, Sulphur 9,9 mg/L, DBO 560 mg/L, DQO 1013 mg/L, Sedimentable solids 9ml/L and faecal coliforms 5,6 X105 NPM/100 that were compared with the UNIFIED TEXT OF ENVIROMENTAL LAW(TULAS). Then the treatability studies were made by determining the correct dosage of Aluminium Polychloride and the use of a zeolite filter for water treatment. It dimensioned each one of the equipments that the sewage water treatment plant will contain according to treatability developed tests. The components of the equipment are: Grid system, Homogenizer tank, Parshall gutter; Hydraulic flocculator, Settling and Filter for a rated capacity of 40,02 L/s for a community of 1198 inhabitants. The dimensioning treatment, reaching the following percentages of removal: surfactants 87,08%, Nitrogen 75%, Sulphide 99,04%, DBO 96,51%, DQO 93,56%, Sedimentable Solids 100% and faecal coliforms 99,96%. It recommends to “Gobierno Decentralizado de la Parroquia San Antonio de Bayushig” to apply the treatment for an effective regulation of sewage water of the parish to improve the environment.