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A Novel Early Warning System Based on a Sediment Microbial Fuel Cell for In Situ and Real Time Hexavalent Chromium Detection in Industrial Wastewater

Hexavalent chromium (Cr(VI)) is a well-known toxic heavy metal in industrial wastewater, but in situ and real time monitoring cannot be achieved by current methods used during industrial wastewater treatment processes. In this study, a Sediment Microbial Fuel Cell (SMFC) was used as a biosensor for... Full description

Journal Title: Sensors 2018, Vol.18(2), p.642
Main Author: Zhao, Shuai
Other Authors: Liu, Pu , Niu, Yongyan , Chen, Zhengjun , Khan, Aman , Zhang, Pengyun , Li, Xiangkai
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 14248220 ; DOI: 10.3390/s18020642
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title: A Novel Early Warning System Based on a Sediment Microbial Fuel Cell for In Situ and Real Time Hexavalent Chromium Detection in Industrial Wastewater
format: Article
creator:
  • Zhao, Shuai
  • Liu, Pu
  • Niu, Yongyan
  • Chen, Zhengjun
  • Khan, Aman
  • Zhang, Pengyun
  • Li, Xiangkai
subjects:
  • Fuel Cells
  • Chromium
  • Microorganisms
  • Substrates
  • Early Warning Systems
  • Real Time
  • Anodes
  • Heavy Metals
  • Linearity
  • Biochemical Fuel Cells
  • Warning Systems
  • Sediments
  • Copper
  • Oxidation
  • Biosensors
  • Biosensors
  • Monitoring
  • Real Time
  • Hexavalent Chromium
  • Industrial Wastes
ispartof: Sensors, 2018, Vol.18(2), p.642
description: Hexavalent chromium (Cr(VI)) is a well-known toxic heavy metal in industrial wastewater, but in situ and real time monitoring cannot be achieved by current methods used during industrial wastewater treatment processes. In this study, a Sediment Microbial Fuel Cell (SMFC) was used as a biosensor for in situ real-time monitoring of Cr(VI), which was the organic substrate is oxidized in the anode and Cr(VI) is reduced at the cathode simultaneously. The pH 6.4 and temperature 25 °C were optimal conditions for the operation. Under the optimal conditions, linearity (R2 = 0.9935) of the generated voltage was observed in the Cr(VI) concentration range from 0.2 to 0.7 mg/L. The system showed high specificity for Cr(VI), as other co-existing ions such as Cu2+, Zn2+, and Pb2+ did not interfere with Cr(VI) detection. In addition, when the sediment MFC-based biosensor was applied for measuring Cr(VI) in actual wastewater samples, a low deviation (
language: eng
source:
identifier: E-ISSN: 14248220 ; DOI: 10.3390/s18020642
fulltext: fulltext_linktorsrc
issn:
  • 14248220
  • 1424-8220
url: Link


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titleA Novel Early Warning System Based on a Sediment Microbial Fuel Cell for In Situ and Real Time Hexavalent Chromium Detection in Industrial Wastewater
creatorZhao, Shuai ; Liu, Pu ; Niu, Yongyan ; Chen, Zhengjun ; Khan, Aman ; Zhang, Pengyun ; Li, Xiangkai
ispartofSensors, 2018, Vol.18(2), p.642
identifierE-ISSN: 14248220 ; DOI: 10.3390/s18020642
subjectFuel Cells ; Chromium ; Microorganisms ; Substrates ; Early Warning Systems ; Real Time ; Anodes ; Heavy Metals ; Linearity ; Biochemical Fuel Cells ; Warning Systems ; Sediments ; Copper ; Oxidation ; Biosensors ; Biosensors ; Monitoring ; Real Time ; Hexavalent Chromium ; Industrial Wastes
descriptionHexavalent chromium (Cr(VI)) is a well-known toxic heavy metal in industrial wastewater, but in situ and real time monitoring cannot be achieved by current methods used during industrial wastewater treatment processes. In this study, a Sediment Microbial Fuel Cell (SMFC) was used as a biosensor for in situ real-time monitoring of Cr(VI), which was the organic substrate is oxidized in the anode and Cr(VI) is reduced at the cathode simultaneously. The pH 6.4 and temperature 25 °C were optimal conditions for the operation. Under the optimal conditions, linearity (R2 = 0.9935) of the generated voltage was observed in the Cr(VI) concentration range from 0.2 to 0.7 mg/L. The system showed high specificity for Cr(VI), as other co-existing ions such as Cu2+, Zn2+, and Pb2+ did not interfere with Cr(VI) detection. In addition, when the sediment MFC-based biosensor was applied for measuring Cr(VI) in actual wastewater samples, a low deviation (<8%) was obtained, which indicated its potential as a...
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descriptionHexavalent chromium (Cr(VI)) is a well-known toxic heavy metal in industrial wastewater, but in situ and real time monitoring cannot be achieved by current methods used during industrial wastewater treatment processes. In this study, a Sediment Microbial Fuel Cell (SMFC) was used as a biosensor for in situ real-time monitoring of Cr(VI), which was the organic substrate is oxidized in the anode and Cr(VI) is reduced at the cathode simultaneously. The pH 6.4 and temperature 25 °C were optimal conditions for the operation. Under the optimal conditions, linearity (R2 = 0.9935) of the generated voltage was observed in the Cr(VI) concentration range from 0.2 to 0.7 mg/L. The system showed high specificity for Cr(VI), as other co-existing ions such as Cu2+, Zn2+, and Pb2+ did not interfere with Cr(VI) detection. In addition, when the sediment MFC-based biosensor was applied for measuring Cr(VI) in actual wastewater samples, a low deviation (<8%) was obtained, which indicated its potential as a...
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titleA Novel Early Warning System Based on a Sediment Microbial Fuel Cell for In Situ and Real Time Hexavalent Chromium Detection in Industrial Wastewater
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abstractHexavalent chromium (Cr(VI)) is a well-known toxic heavy metal in industrial wastewater, but in situ and real time monitoring cannot be achieved by current methods used during industrial wastewater treatment processes. In this study, a Sediment Microbial Fuel Cell (SMFC) was used as a biosensor for in situ real-time monitoring of Cr(VI), which was the organic substrate is oxidized in the anode and Cr(VI) is reduced at the cathode simultaneously. The pH 6.4 and temperature 25 °C were optimal conditions for the operation. Under the optimal conditions, linearity (R2 = 0.9935) of the generated voltage was observed in the Cr(VI) concentration range from 0.2 to 0.7 mg/L. The system showed high specificity for Cr(VI), as other co-existing ions such as Cu2+, Zn2+, and Pb2+ did not interfere with Cr(VI) detection. In addition, when the sediment MFC-based biosensor was applied for measuring Cr(VI) in actual wastewater samples, a low deviation (<8%) was obtained, which indicated its potential as a...
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