Adsorption of Arsenic on Fe-Modified Biochar and Monitoring Using Spectral Induced Polarization

Panagiotis Kirmizakis; Bassam Tawabini; Omer Muhammad Siddiq; Dimitrios Kalderis; Dimitrios Ntarlagiannis; Pantelis Soupios

doi:10.3390/w14040563

Water (Feb 2022)

Adsorption of Arsenic on Fe-Modified Biochar and Monitoring Using Spectral Induced Polarization

Panagiotis Kirmizakis,
Bassam Tawabini,
Omer Muhammad Siddiq,
Dimitrios Kalderis,
Dimitrios Ntarlagiannis,
Pantelis Soupios

Affiliations

Panagiotis Kirmizakis: Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Bassam Tawabini: Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Omer Muhammad Siddiq: Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Dimitrios Kalderis: Department of Electronic Engineering, Hellenic Mediterranean University, 73133 Chania, Greece
Dimitrios Ntarlagiannis: Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
Pantelis Soupios: Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia

DOI: https://doi.org/10.3390/w14040563
Journal volume & issue: Vol. 14, no. 4
p. 563

Abstract

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This work demonstrates the potential of Fe-modified biochar for the treatment of arsenic (As) simulated wastewater and the monitoring of adsorption in real-time. Specifically, we propose the utilization of date-palm leaves for the production of biochar, further modified with Fe in order to improve its adsorption function against inorganic pollutants, such as As. Both the original biochar and the Fe-modified biochar were used for adsorption of As in laboratory batch and column experiments. The monitoring of the biochar(s) performance and As treatment was also enhanced by using the spectral induced polarization (SIP) method, offering real-time monitoring, in addition to standard chemical monitoring. Both the original and the Fe-modified biochar achieved high removal rates with Fe-modified biochar achieving up to 98% removal of As compared to the 17% by sand only (control). In addition, a correlation was found between post-adsorption measurements and SIP measurements.

Published in Water

ISSN: 2073-4441 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Hydraulic engineering; Technology: Environmental technology. Sanitary engineering: Water supply for domestic and industrial purposes
Website: http://www.mdpi.com/journal/water/

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