Phytoremediation of Nutrient from Domestic Wastewater using Tamarix Boveana and Salsola Baryosma under salt stress

Abstract

This study aims to evaluate how plant species affect the removal of nutrients under salt stress (electrical conductivity 10-15 mS/cm) from wastewater discharge of Halloufa wetland located north of El-Oued city, in Algeria. Using Tamarix Boveana and Salsola baryosma, which show good acclimatization in arid climate and wastewater discharge sites. The water quality after phytoremediation was controlled. The wastewater phytoremediation was conducted outdoor for 5 months in two buckets planted with T. Boveana and S. baryosma respectively, and unplanted bucket as a control. The results showed that the planted bucket with Tamarix Boveana gives the best outputs for the elimination of nitrogen pollution (Ammonia 98.71 %, and Nitrite 45.78 %). However, the planted bucket of Salsola Baryosma is the most appropriate for the phosphorous pollution (67.06 %). Besides, the negative elimination of nitrate appears in all buckets. whereas an Important reduction in December achieved 64.33 %, 62.33 % removal efficiency in Salsola Baryosma, and Tamarix Boveana respectively.