suriyanon, nakorn, Wongpankamol , P., Chainetr, S. and Suriyanon, W. 2024. Adsorption characteristics of methylene blue onto low-cost dried and calcined water hyacinth: A batch and fixed-bed column study. RMUTL Engineering Journal. 9, 2 (Dec. 2024), 10–20. DOI:https://doi.org/10.14456/rmutlengj.2024.10.