Synthesis, characterization and application of novel green chelating PE-TH resin in the removal of toxic metals from industrial effluents

Abstract

One of the world's most serious environmental issues is water contamination produced by toxic metal ions from industrial wastewater. Heavy metal contamination has posed a severe threat to human health and the environment due to its toxicity. To investigate this issue, water contaminated by industrial waste must be rectified with paramount importance. The necessity of generating innovative, environmentally safe remedies to ensure the security of human life and environment is recognized by green chemistry. The purpose of the present research is to synthesize the novel plant-based green chelating resin to trap toxic metal ions from industrial wastewater. The Psyllium Epichlorohydrin Tyrosin Hydroxamate (PE-TH) resin is prepared by crosslinking Psyllium with Epichlorochydrin and Tyrosine amino acid. The total ion exchange capacity (Q) obtained for PE-TH resin is 5.780meq/g. The adsorption coefficient ‘Kd' is obtained by employing the batch adsorption method. The PE-TH resin proved to be very efficient in removing predominantly Cu (II) and Ni (II) ions from the electroplating industry wastewater. The pH range of 7-7.5 produced significant elimination of Cu (II) and Ni (II). The PE-TH resin satisfactorily adsorbs Cu (II) and Ni (II) metal ions from electroplating industry effluents. The newly synthesized PE-TH resin is easy to prepare and is eco-friendly, cost-effective and biodegradable green chelating agent to remove toxic metals ions efficiently from industrial effluents.