Evaluation of removal efficiency of Fe(III) and Al(III) ions  in acid sulfate water using agarose-based  magnesium oxide composite

Authors

  • Ngoc Xuan Dat Mai, Tan Le-Hoang Doan, Bach Thang Phan
  • Ngoc Xuan Dat Mai, Tan Le-Hoang Doan, Le Nguyen Bao Thu, Bach Thang Phan*
  • Le Nguyen Bao Thu

Keywords:

Abstract

Agarose/MgO composite adsorbents were developed through interspersing MgO nanoparticles with agarose to create an absorbent. The elimination capacity of the composite towards iron (Fe), aluminium (Al), and arsenate (As) in acid sulfate water was evaluated by means of batch method at room temperature. The constituents of the composite were characterized by thermal gravimetric analysis (TGA). The removal efficiency was determined through inductively coupled plasma (ICP) mass spectrometry. The composite adsorbent exhibited an excellent adsorption capacity towards three types of ions and heavy metals that are found in acid sulfate water. After treating with agarose/MgO, the concentrations of Fe and Al decreased from 60.28 and 604.84 µg/l, respectively, to under 3.42 and 1.78 µg/l, respectively. These exceptional results reveal the potential uses of agarose/MgO composites as adsorbents in the treatment of acid sulfate water.

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Author Biographies

  • Ngoc Xuan Dat Mai, Tan Le-Hoang Doan, Bach Thang Phan

    Center for Innovative Materials and Architectures (INOMAR), Vietnam National University, Ho Chi Minh city

  • Ngoc Xuan Dat Mai, Tan Le-Hoang Doan, Le Nguyen Bao Thu, Bach Thang Phan*

    Vietnam National University, Ho Chi Minh city

  • Le Nguyen Bao Thu

    Department of Mathematics and Physics, University of Information Technology, Vietnam National University, Ho Chi Minh city

Published

2021-09-20

Issue

No. 3C (2021): SEPTEMBER 2021 . VOLUME 63 NUMBER 3

Section

PHYSICAL SCIENCES