Performance of the Cana indica Plant in Treatment of Waste Water by Vertical Flow Method for the Touggourt Region, Algeria

The effectiveness of the Canna indica plant in treating waste water with a vertical flow system under dry and hot atmosphere was studied. This study included a comparison between a basin planted with C. Indica and a non-planted one (witness), with the study of the ability of the C. Indica plant to filter waste water. The study was carried out through an experimental model at the National Institute of Disinfection (ONA) in Touggourt, Algeria. This model consists of circular basins with a capacity of 52L filled from bottom to top on a thickness of 18cm with gravel (25/15) mm. The process of supplying the basins with urban waste water after primary treatment (physical treatment) with 15Lper day at a regular rate once every week and the water obtained after Its stay in the tank for 5 days is collected through a container placed under the sink. After the study that lasted for six months from December 2019 to May 2020, obtained the removal of pollutants, with percentages of DCO (83.95%), N-NO₂⁻ (81.81%), P-PO₄⁻³ (90.49%), and bacteria E. Coli (99.86%). These percentages comply with the recommended standards for the safe use of this water in the agricultural field.