Modeling and Experiment Study of Carbon Nanotubes for Enhancing the Oil Removal From Wastewater Publisher



Kwang CC¹ ; Mubarak NM² ; Karri RR² ; Jatoi AS³ ; Tanjung FA⁴ ; Tan YH¹ ; Dehghani MH^{5, 6} ; Abusahmin BS² ; Koduru JR⁷
Source: Water Treatment Using Engineered Carbon Nanotubes Published:2023

Abstract

Water is an important source that needs for all life in this world. Water contamination, due to oil, heavy metal, and other waste materials, has become a crucial problem in many industries and domestic development. The adsorption technique is suitable and widely used due to an affordable, simple, and more effective technique to remove hydrocarbon from the wastewater or oil–water mixture. Adsorption can be used in primary oil recovery in a tanker's small oil spill in the sea. In this study, to determine the efficiency of oil removal from wastewater using a carbon nanotube (CNT) was illustrated. The effect of the contact time shows that the amount of sorbent oil on the particles increases rapidly during the initial stage and then progressively reaches 90% equilibrium capacity after 2hours. As the outside surface of CNTs becomes exhausted and saturated with oil droplets, the rate of oil uptake starts to decrease and reaches equilibrium. In addition, isotherm and kinetics results show that oil-removal adsorption obeys Freundlich isotherms and pseudo-second-order kinetics. Hence, the CNT, a novel adsorbent for removing oil from wastewater, is a breakthrough in the near future. © 2024 Elsevier Inc. All rights reserved.