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Article

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

1
Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
2
Department of Electronic Engineering, Hellenic Mediterranean University, 73133 Chania, Greece
3
Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Yongchang Sun
Water 2022, 14(4), 563; https://doi.org/10.3390/w14040563
Received: 24 January 2022 / Revised: 8 February 2022 / Accepted: 11 February 2022 / Published: 13 February 2022
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. View Full-Text
Keywords: biochar; arsenate; wastewater; spectral induced polarization biochar; arsenate; wastewater; spectral induced polarization
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MDPI and ACS Style

Kirmizakis, P.; Tawabini, B.; Siddiq, O.M.; Kalderis, D.; Ntarlagiannis, D.; Soupios, P. Adsorption of Arsenic on Fe-Modified Biochar and Monitoring Using Spectral Induced Polarization. Water 2022, 14, 563. https://doi.org/10.3390/w14040563

AMA Style

Kirmizakis P, Tawabini B, Siddiq OM, Kalderis D, Ntarlagiannis D, Soupios P. Adsorption of Arsenic on Fe-Modified Biochar and Monitoring Using Spectral Induced Polarization. Water. 2022; 14(4):563. https://doi.org/10.3390/w14040563

Chicago/Turabian Style

Kirmizakis, Panagiotis, Bassam Tawabini, Omer M. Siddiq, Dimitrios Kalderis, Dimitrios Ntarlagiannis, and Pantelis Soupios. 2022. "Adsorption of Arsenic on Fe-Modified Biochar and Monitoring Using Spectral Induced Polarization" Water 14, no. 4: 563. https://doi.org/10.3390/w14040563

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