Work

Carbon nanomaterials from cassava rhizome for efficient toluene removal from aqueous solutions: Continuous adsorption studies using local and global optimization

Year: 2025

Type: article

Abstract: ABSTRACT This study explores cassava rhizome-derived carbon nanomaterials for continuous toluene adsorption from water. The research focuses on their preparation, characterization, and adsorption capacity through continuous adsorption studies. Optimization was performed using response surface methodology (RSM) and generalized reduced gradient (GRG) to determine ideal conditions. RSM optimization yielded a maximum adsorption capacity of 211.051 mg/g at a flow rate of 20.69 mL/min, bed height of 9.85 cm, initial toluene concentration of 94.50 ppm, and contact time of 207.83 min, with a desirability value of 1.000. GRG further improved the capacity to 211.517 mg/g under optimized conditions of 20.80 mL/min flow rate, 10.71 cm bed height, 97.60 ppm initial toluene concentration, and 210.31 min contact time. These results highlight the potential of cassava rhizome-derived carbon nanomaterials as effective adsorbents for toluene removal from aqueous solutions.

Source: South African Journal of Chemical Engineering

DOI: 10.1016/j.sajce.2025.06.009

Authors: Umareddy Meka, J. Aravind Kumar, Selvaraju Sivamani

Institutions: Sathyabama Institute of Science and Technology, University of Technology and Applied Sciences-Salalah, Saveetha University

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $950