Synthesis, characterization and evaluation of amphoteric galactomannan derivative for the mitigation of malachite green and congo red dye from aqueous solution

Biopolymeric materials have been utilized for water treatment since ancient times. Consequently, novel sustainable, inexpensive and natural biobased alternatives explored persistently. Amphoteric derivatives of galactomannans are still unexplored rarely used to treat industrial wastes. The present study was synthesize characterize the amphoteric derivative galactomannan, obtained from Cassia tora seeds, by applying ‘Taguchi design’ (L'9), its application in mitigation cationic (Malachite green) anionic (Congo red) dyes. also studied conditioning using kaolin suspension. results signify that (anionic DS ~ 0.52 0.197) is effective maximum adsorption Malachite green (73%) Congo red (17%) dyes as a flocculant at minimum dose 10 ppm. characterized X-ray-diffraction, TG analysis spectroscopic techniques.