ORIGINAL RESEARCH
Electrochemical Properties and Pollution
Remediation Mechanism of P-MFC Anode
under Cadmium Stress
| 1 | College of Environment and Safety Engineering, Chang Zhou University, Changzhou, China |
CORRESPONDING AUTHOR
Yan Yang
College of Environment and Safety Engineering, ChangZhou University, College of Environment and Safety Engineering, ChangZhou University, 213000 Changzhou, China
College of Environment and Safety Engineering, ChangZhou University, College of Environment and Safety Engineering, ChangZhou University, 213000 Changzhou, China
Submission date: 2018-05-20
Acceptance date: 2018-08-24
Online publication date: 2019-07-04
Publication date: 2019-07-08
Pol. J. Environ. Stud. 2019;28(5):3985–3992
KEYWORDS
TOPICS
ABSTRACT
To explore the remediation feasibility of heavy metal pollution in wetland soil using a plantmicrobial
fuel cell (P-MFC) and the corresponding mechanism, a P-MFC system was constructed
with in situ simulations of real wetland environment. By using Typhalatifolia L. as the trial plant, the
electrochemical properties of the anode under different cadmium (Cd) concentrations are analyzed
by cyclic voltammetry and electrochemical impedance, and the microbial community structure is
determined by high-throughput sequencing. The maximum P-MFC output voltage of 546.65 mV and
Cd accumulation of 36.461 mg/kg at the Typhalatifolia L. roots are revealed. Cd stress could not only
decrease the output voltage and anodic electrochemical activity of the P-MFC system but also affect the
accumulation ability of Typhalatifolia L. and the internal resistance and microbial community structure
of P-MFC. We find it feasible to apply P-MFC to large-scale heavy metal remediation in wetland soil, but
it is critical to consider the tolerance range of pollution stress to achieve the best balance between energy
output and environmental restoration.
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