Modification of activated carbon prepared from black liquor with the copper ion and its application to adsorption phenol

Articles in Press

Document Type : Research Paper

Authors

1 Department of Wood and Paper Science and Industry, Faculty of Natural Sciences, University of Tehran, Karaj, Iran Department of Wood and Paper Science and Industry, University of Tehran

2 Caspian faculty of Engineering, College of Engineering, University of Tehran

3 Department of Wood and Paper Science and Industry, Faculty of Natural Sciences, University of Tehran, Karaj, Iran

4 Department of Science and Wood and Paper Industries, Faculty of Natural Sciences, University of Tehran, Karaj, Iran

Abstract

The growing demand for effective and environmentally friendly phenol removal methods has led to a growing interest in investigating the potential of using biomass-derived activated carbon. This research investigated the absorption process of phenol from wastewater using activated carbon adsorbents and activated carbon modified with copper in a batch system. Activated carbon was obtained from paper mill black liquor. The pore structure and morphology of AC/Cu and AC were investigated by BET and SEM. Modifying activated carbon with copper increased the specific surface area from 283.2 to 517.5 m2/g. The ability of prepared adsorbents to remove phenol was evaluated by examining the effects of parameters such as adsorbent amount, pH, solution concentration, contact time, temperature effect. It was found that AC/Cu shows the highest adsorption rate after coming in contact with phenol solution with a concentration of 100 ppm for one hour at an optimal pH of 8. The adsorption of phenol by AC/Cu is consistent with the pseudo-second-order kinetic model. The absorption of phenol by the AC/Cu depends on the temperature and is an endothermic process. The increase in the amount of phenol removal with increasing temperature is more in AC/Cu. The study of the adsorbent saturation in the column system showed that AC/Cu is able to absorb more than 95% of the phenol solution with a concentration of 100 ppm up to a volume of 2700 mL. The findings of this study provide valuable insights into the field and pave the way for further research in the future.

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Main Subjects

Journal of Chemical and Petroleum Engineering

Articles in Press, Accepted Manuscript
Available Online from 12 August 2024

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History

  • Receive Date: 20 June 2024
  • Revise Date: 17 July 2024
  • Accept Date: 18 July 2024

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