Determinación de las tasas de oxidación, nitrificación y sedimentación en el proceso de autopurificación de un río de montaña

Abstract

This paper presents the evaluation of oxidation of organic matter in water via the determination of kinetic rate indicating the frequency at which the stream loses or gains oxygen and nitrification rates and the decay of pathogens. The fee calculation defines the process of auto purification and assimilative capacity of the organic load on the Frio River, the main source of potable and irrigation of the municipalities of Floridablanca and Girón in the Department of Santander, Colombia. 26.6 km of river were modeled, ie, the entire main channel basin, which characteristic is to be a highly oxygenated mountain river in its upper part, but in the low polluted area, which capture 26.2 Ton.d–1 of biodegradable material from household waste. The calculation of these rates is developed through correlations and numerical analysis of concentrations in each of the (7) reach of the river. The model of behavior of: Oxigen, carbon, nitrogen, pathogens and suspended solids through QUAL2K, in order to corroborate the behavior of the calculated rates: studies of dispersion coefficient, morphometric and hydraulic analyzes were developed. Knowing the auto purification of water sources is critical to establishing sustainability strategies.