Potential of ecological water treatment elements to reduce pollution of river water used for urban agriculture in Addis Ababa, Ethiopia

Urban Farm DB summary

This study assessed the effectiveness of a vetiver grass floating treatment wetland in reducing irrigation water pollution at the Mekanisa-Gofa-Lafto Cooperative farm in Addis Ababa, Ethiopia. After a 7-day treatment, the wetland reduced BOD (73.68%), COD (73.92%), pH (0.39%), Chloride (43.12%), Total Hardness (66.56%), and TSS (96.21%), approaching recommended irrigation water quality guidelines within 3 days. However, Electro Conductivity (22.2%) and Sodium (15.2%) concentrations increased, exceeding recommended values.