Volume 08,Issue 03

Removing Acidic Yellow Dye from Wastewater Using Moringa Peregrina

Authors

Negar Saraei, Mukunda Khanal, Mostafa Tizghadam

Abstract
The efficacy of Moringa Peregrina seeds, a natural, non-toxic and environmental friendly adsorbent, in the treatment of dyed wastewater is investigated in this research. First, an isothermal model and absorption kinetics are studied. Freundlich isothermal, langmuir isothermal, and pseudo-second-order model are used in explaining the adsorption process Influencing variables like major and minor factors are established, and the amount of dye removal is calculated. Optimization of three important variables; including color concentration, pH and adsorbent dose were performed using central composite method in Design-Expert software. Acidic yellow dye at the concentration of 250 mg/L with pH=8, and adsorbent at a concentration of 0.875 g were purified to 80 % of the aqueous solution. The findings were obtained at the mixing speed of 200 rpm for a period of 60 minutes with 0.93 reliability. The response surface methodology (RSM) findings showed that Moringa Peregrina is effective in removing pigments such as acidic yellow (code19) from aqueous solutions given the specific conditions.

Keyword: Moringa Peregrina, Industrial wastewater treatment, RSM experiments, Kinetics models, Isotherm models.

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