The Removal of Dye from Synthetic Wastewater using Hybrid Modified Sugarcane Bagasse-Banana Stem

Abstract

Abstract The potential application of hybrid adsorbents for sugarcane bagasse and banana stem has been explored through the use of a batch adsorption experiment. To ascertain the impact of various dosages and contact times, several experiments were conducted. The Langmuir and Freundlich isotherm models were used to conduct the adsorption analysis. Apart from that, the behaviour and mechanism were analysed utilising the Pseudo-first order and Pseudo-second order kinetic models. The findings reveal that in 100 mL of synthetic dye sample, at an optimal dosage of sugarcane bagasse and banana stem, and at an optimal contact time of 65 minutes, more than 80% of the colour was eliminated. Isotherm models showed that the study was best fitted to Langmuir with a coefficient correlation R2 of 0.9048. In addition, the adsorption kinetics of colour showed that pseudo-second order well-fitted with the coefficient correlation 0.9639, which is bigger than pseudo-first order, 0.4827. Due to the low cost of the media utilised in the study, the hybrid adsorbents of sugarcane bagasse and banana stem have a good potential for colour removal in textile wastewater treatment. As a result, it provides an alternate method of addressing issues associated with an excess of colour in dye wastewater treatment plants.