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A starch/biochar composite was synthesized to remove Pb(II) from wastewater and used as a microbial fuel cell electrode to generate electricity in seawater contaminated with Pb(II) and petroleum hydrocarbons.

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What they did

System
MFC
Substrate
synthetic mixture

What worked

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Abstract

The efficient removal of toxic chemicals from wastewater using effective sorbents has gained significant attention in recent years. In this study, a starch/biochar composite was synthesized from rice straw to achieve the removal of Pb(II) from wastewater. The highest performing starch/biochar composite was then utilized as a microbial fuel cell electrode for generating electricity in synthetic seawater contaminated with Pb(II) and petroleum hydrocarbons. Results showed that the maximal power density and current density were 2.18±0.20 W/m³ and 8.33±0.50 A/m³, respectively, and that the composite achieved removal rates of 95.10±1.50% for Pb(II) and 55.10±2.20% for petroleum hydrocarbons. These findings suggest that the starch/biochar composite can serve as an effective sorbent for remediating environmental contamination, while also having potential for use in sustainable energy generation.

Key findings

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Keywords

BiocharSorbentSeawaterWastewaterPulp and paper industryComposite number

Identifiers

DOI
10.22545/2023/00229
Journal
Transdisciplinary Journal of Engineering & Science
Year
2023