Effective phosphate removal from sewage water using zerovalent iron nanomaterial as an adsorbent

Abstract In recent times, nano zerovalent iron (nZVI) particles have attracted significant attention from researchers for their effectiveness in removing phosphates, a hazardous contaminant found groundwater and surface water. nZVI possesses some excellent characteristics such as high reactivity, area, effective surface-to-volume ratio. this study, was characterized by X-ray diffraction, Brunauer–Emmett–Teller (BET) area analyzer, Fourier transform infra-red (FT-IR), field emission scanning electron microscopy (FESEM), transmission (TEM) techniques. The effect of variations dosage, pH, ionic strength, coexisting anions on the removal phosphate laboratory-based synthetic water explored. A maximum efficiency 96% achieved at an initial concentration 25 mg/L, dosage 560 shaking rate 500 rpm, pH 2 attained within 120 min. Kinetic equilibrium studies revealed that adsorption follows pseudo-2nd-order kinetic model Temkin isotherm model, respectively. thermodynamic study confirmed is spontaneous endothermic process. Finally, proved to be stable up five cycles. further applied sewage water, which collected Saheb bandh, Purulia district West Bengal, Eastern India.