Column Adsorption Studies of Textile Wastewater using Iron Oxide Nanoparticles doped Zeolite A

Abstract

In this work, iron oxide nanoparticles were doped on zeolite A (MZA) for treatment of textile wastewater via column adsorption studies. The physicochemical parameters of the wastewater were conducted using standard methods. The effects of bed heights, flow rates and inlet concentrations on the breakthrough curves were studied to examine the performance of the adsorbent. The column studies revealed that the exhaustion and breakthrough time increased with increase in bed height while they decreased with increase in flow rates and inlet concentrations. The maximum adsorption of the chemical parameters was 45.83 %, 53.09 %, 45.50 %, 54.23 %, 49.48 %, 34.63 % for chloride, cyanide, chemical oxygen demand (COD), biological oxygen demand (BOD), nitrite and total organic carbon (TOC) respectively at 5 cm bed height, 4 ml/min flow rate and 10 % inlet concentrations. The Thomas model was found to predict the breakthrough of the pollutants better than Adams-Bohart with high R2 values of 0.882-0.978, 0.899-0.984 and 0.876-0.981 for bed height, flow rate and inlet concentrations accordingly. The presented results show that FeONP-ZA developed is suitable for textile wastewater.