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Abstract This study examined the effectiveness of granular activated carbon as an adsorbent for removing methylene red orange (MRO) colour from synthetic wastewater. The experiment involved using 250 mL conical flasks and maintaining the pH at an optimised value of 9. A concentration of 1.6 g of commercial granular activated carbon (CGAC) was mixed with 100 mL of MRO solution (200 mg/L) and agitated at room temperature. Samples were collected at specific time intervals to measure the MRO concentration. The collected data was analysed to describe the interaction between adsorbates and adsorbents. The Langmuir model showed a good fit for isotherm studies, supporting the efficacy of CGAC as an adsorbent for MRO dye removal. This study highlights the potential of CGAC for MRO dye removal and contributes to the understanding of the adsorption process.
Salwa et al. (Sat,) studied this question.
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