Ohikere, H.I., Yashim, Z.I. and Nwokem, N.C. 2023. OPTIMIZATION OF ADSORPTION OF CONGO RED DYE FROM AQUEOUS SOLUTION WITH ACTIVATED CARBON FROM CASTOR SEED SHELL USING CENTRAL COMPOSITE DESIGN. FUDMA JOURNAL OF SCIENCES. 7, 1 (Feb. 2023), 271 - 279. DOI:https://doi.org/10.33003/fjs-2023-0701-1308.