Evaluation of municipal wastewater pos-treatment using macrophytes as duckweed (Lemma minor) in stabilization ponds

This paper is intended to determine the usefulness of duckweed (Lemma minor) and after treatment in stabilization ponds that treat domestic wastewater was analyzed a sample of water from wastewater effluent from the anaerobic lagoon treatment system Salguero wastewater the Valledupar-Cesar; the sample was inoculated with duckweed, which were taken from reservoirs located on the outskirts of the municipality in question. Assembly was performed using a batch type laboratory scale system with three replicates and two control parameters were analyzed nutrients (nitrogen and phosphorus). Nutrient removal was 72% and 95% N. P was established that duckweed have good efficiency regarding nutrient removal.