Application of iron nanaoparticles in landfill leachate treatment - case study: Hamadan landfill leachate

摘要

This study was performed with the objective of determining the efficiency of iron nanoparticles for reducing chemical oxygen demand (COD), 5-day biological oxygen demand (BOD5), total solids (TS) and color of Hamadan city landfill leachate. Experiments were performed in a batch reactor and the main effective factors of pH, reaction time and concentration of iron nanoparticles were investigated. The obtained data were analyzed with One-Way ANOVA statistical test and SPSS-13 software. Maximum removal efficiencies were 47.94%, 35%, 55.62% and 76.66% for COD, BOD5, TS and color, respectively (for 2.5 g/L iron nanoparticles dosage, pH?=?6.5 and 10 min reaction time). The results showed that the removal of COD, BOD5 and color had reverse relationship with contact time and TS removal followed a direct relationship (P?