Nano Scale Zero Valent Iron Particles for Dye Removal in Textile Industry and Treatment of Effluent

Nano-remediation procedures are designed so that only one contaminant or similar class of contaminants is being considered. In the present work, a holistic approach was applied towards processes which simultaneously occur after the treatment of real effluent water and dye removal of from a small biological wastewater treatment plant (SBWTP) with nano scale zero-valent iron (nZVI) particles. Since textile dye compounds which is harmful to human beings, a simple and sensitive method to remove this pollutant from wastewater is using Nano ZeroValent Iron (nZVI) catalyst. Four independent variables––including catalyst amount (0.1–0.9 g), pH (3.5–9.5), removal time (30–150 s) and dye concentration (10–50 mg/L)––were transformed to predict the responses of effluent. The result showed that under the optimized experimental conditions the removal of textile dye was over 95%.