چکیده انگلیسی:
Dye-containing wastewater is one of the main environmental challenges that can cause health issues. It is crucial to remove the dyes from wastewater before its discharge into the environment. This study aims to evaluate the efficiency of aptenia cordifolia mucilage in removal of anionic dyes from textile wastewater via coagulation and flocculation process. To this goal, the effect of different parameters including pH, initial dye concentration, concentration of plant mucilage and temperature on the efficiency of dye removal were investigated. The effect of application of poly(propylene imine) dendrimer (PPI) with the plant mucilage on the efficiency of dye removal process was evaluated. The results showed that the maximum dye removal with aptenia cordifolia (85.41 %) was obtained when using 5 mg of the plant mucilage at 25 °C and pH=4. Moreover, it was found that increasing the concentration of the plant mucilage and the initial dye concentration increased the dye removal efficiency. The application of 1 mg poly(propylene imine) dendrimer increased the efficiency of plant mucilage in the removal of anionic dye from aqueous solution from 85.41% to 92.18%. According to the results of this study, the application of aptenita cordifolia mucilage can be a beneficial, affordable and environmentally-friendly approach in the removal of textile anionic dyes from aqueous solutions.
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