Removal Of Total Nitrogen And Phosphorus Present In Fish Ponds Wastewater By Calcined Diatomite

Abstract

This work aims to enhance and improve the quality of a thermally modified diatomite from the Algerian Sahara through various physicochemical methods. The BET analysis reveals that calcining the diatomite at 850°C increased its specific surface area. Diffractograms and infrared spectra reveal new phases and surface function, confirming the surface modification that increased the zero-charge point. The PH_PZC value for calcined diatomite is 8.8 while the raw diatomite's is 7.8. We conducted a mode study on the dynamic adsorption of chemical pollutants like total nitrogen and phosphates to simulate the impact of modifications on adsorption. We achieved an adsorption rate of 90% for pollutants treated on diatomite. The results obtained show the success of the test for all treated pollutants. The use of calcined diatomite in the treatment and filtration of polluted water has demonstrated the effectiveness of this material in eliminating and improving the quality of filtered water.