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

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.

Automated summary

The study utilized Fe modified biochar produced from date palm leaves to remove As from wastewater, with both 5% and 10% biochar-amended columns achieving over 98% removal. Real-time monitoring of the wastewater treatment process was conducted using spectral induced polarization (SIP), showing SIP parameters to be sensitive on As removal processes and offering higher temporal resolution than conventional geochemical monitoring.