A study on removal of dye, COD, turbidity, and DO enhancement from synthetic textile wastewater by using natural adsorbent in RSM design: isothermal analysis
2021
In the present investigation, dye, chemical oxygen demand (COD), turbidity removal, and dissolved oxygen (DO) increment were carried out using raw wheat bran as an adsorbent which was coated on the low-density polypropylene (PP) in the inverse fluidization. The obtained coated raw wheat bran on PP was tested as an adsorbent in this research work. Prepared raw wheat bran was characterized by FTIR, SEM, and EDS. The obtained raw wheat bran has 58.53% carbon content. The prepared adsorbent was used to remove different pollutants from the prepared synthetic textile azo dye. Experiments have been conducted in batch adsorption processes with different parameters such as initial dye concentration, pH, airflow timing, and the adsorbent dose on removal effectiveness of dye, COD, turbidity removal, and DO enhancement. The central composite design (CCD) technique of response surface methodology (RSM) and different known isotherms models were applied to the batch experimental data for removal of an azo dye, COD, turbidity, and DO enhancement.
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