OPTIMIZATION OF COAGULATION-FLOCCULATION PROCESS FOR COLOUR REMOVAL FROM AZO DYE USING NATURAL POLYMERS: RESPONSE SURFACE METHODOLOGICAL APPROACH. Nigerian Journal of Technology, [S. l.], v. 36, n. 2, p. 482–495, 2017. DOI: 10.4314/njt.362.1299. Disponível em: https://nijotech.com/index.php/nijotech/article/view/1299. Acesso em: 24 may. 2026.