Effective Removal of TDS and COD from Sugar Effluent Using Green Synthesized Magnetic Iron Nanoparticle with Trigonella foenum - graecum Seed Mucilage

In the present investigation, magnetic iron nanoparticle was synthesized using polysaccharide mucilage obtained from the seeds of fenugreek (Trigonella foenum-graecum L). The nanoparticle was characterized by XRD, FTIR, SEM and EDX analyses. The morphology of the nanoparticle was irregular spherical shape, and functional groups present in the mucilage act as a capping and reducing agent for the synthesis of magnetic FeNP. The physical and chemical characteristics of the effluent including colour, odour, pH, COD and TDS were analysed before treatment. Treatment was done by different dosage of magnetic nanoparticles and raw mucilage (0.2, 0.4, 0.6, 0.8 and 1 g). Higher reduction of TDS (77%) and COD (75%) was observed in 0.8 g of raw mucilage, and nanoparticle showed 91% of COD reduction and 86% of TDS removal in 0.6 g of dosage. The amount of iron nanoparticles required for pollutant removal was lesser than raw mucilage required for the same. Antimicrobial activity of FeNP against gram-positive and gram-negative organisms showed good zone of inhibition up to 20 mm diameter for Escherichia coli. Magnetic nanoparticles contain huge surface area, which is responsible for binding and removal of contaminant.