rainide Grafted Carboxymethyl Tamarind(CMT-g-PAM): Development and Application of aNovel Polymeric Flocculant

摘要

Water is scarce commodity now. Recycling of municipal wastewaindustrial and mineral processing effluents require treatment with the inorganicorganic flocculants. Both synthetic and natural polymers are used as flocculanNatural polymers are biodegradable and are effective at very large dosages but avery shear stable. The synthetic polymers are highly effective flocculants at very smadosages and have high tailorability, but have poor shear stability. In the authorslaboratory, a novel polymeric flocculant has been developed by grafting polyacrylamide onto the backbone of carboxymethyl tamarind (CMT-g-PAM). Various gradeswere developed to optimize the best flocculant. The grafted polymers were charac-terized by various characterization techniques such as intrinsic viscosity measure-ment, FTIR spectroscopy, 3C-NMR spectroscopy, elemental analysis etc. Theflocculation studies were carried out using turbidity test as well as settling test.The optimized CMT-g-PAM was then compared with some of the commercialflocculants available in national and international markets in colloidal suspensionsand it has been found that our synthesized flocculant surpasses most of thecommercial flocculants in performance.