Harnessing carboxymethyl cellulose and Moringa oleifera seed husks for sustainable treatment of a multi-metal real waste.

This study aimed to evaluate effective treatment strategies for laboratory waste with an initial pH of 1.0, containing Cr, Mn, Co, Fe, Ni, Cu, Zn, Sr, Hg, and Pb ions, focusing on flocculation, precipitation, and adsorption techniques. The study utilized microparticles derived from Moringa oleifera seed husks (MS), cryogels of carboxymethyl cellulose (CMC), and hybrid cryogels combining CMC and MS (CMC-MS25 and CMC-MS50) as adsorbents.