Combining geophysics and material science for environmental remediation: Real-time monitoring of Fe-biochar arsenic wastewater treatment

M O Siddiq; B Tawabini; P Kirmizakis; D Kalderis; D Ntarlagiannis; P Soupios

doi:10.1016/j.chemosphere.2021.131390

Combining geophysics and material science for environmental remediation: Real-time monitoring of Fe-biochar arsenic wastewater treatment

Chemosphere. 2021 Dec:284:131390. doi: 10.1016/j.chemosphere.2021.131390. Epub 2021 Jun 30.

Authors

M O Siddiq¹, B Tawabini², P Kirmizakis¹, D Kalderis³, D Ntarlagiannis⁴, P Soupios⁵

Affiliations

¹ Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
² Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia. Electronic address: bassamst@kfupm.edu.sa.
³ Department of Electronic Engineering, Hellenic Mediterranean University, Chania Crete, Greece.
⁴ Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ, USA.
⁵ Department of Geosciences, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia; Center of Integrated Petroleum Research, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.

PMID: 34225127
DOI: 10.1016/j.chemosphere.2021.131390

Abstract

In a column set-up, Fe modified biochar produced from date palm leaves was used to remove As (1 mg L^-1) from a laboratory-prepared wastewater. The wastewater treatment process was monitored in real-time by spectral induced polarization (SIP), over a wide range of frequencies (0.01-1000 Hz). Both 5 and 10% biochar-amended columns achieved As removal exceeding 98%. The SIP parameters appear to be sensitive on As removal processes, with the recorded trend following the conventional geochemical monitoring, while offering higher temporal resolution.

Keywords: Arsenic; Biochar; Spectral induced polarization; Wastewater treatment.

MeSH terms

Adsorption
Arsenic*
Charcoal
Environmental Restoration and Remediation*
Materials Science
Water Pollutants, Chemical* / analysis
Water Purification*

Substances

Water Pollutants, Chemical
biochar
Charcoal
Arsenic