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Seafloor sediment biological fuel cell sensor system for in-situ monitoring of organic pollutant degradation

A biofuel cell and organic pollutant technology, applied in biochemical fuel cells, instruments, measuring devices, etc., can solve the problems of low degradation rate and difficulty in in-situ monitoring, so as to accelerate the speed of environmental restoration, reduce costs, reduce effect of error

Active Publication Date: 2016-11-23
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the difficulties such as the low degradation rate of seabed oil pollution and the difficulty in realizing in-situ monitoring. In order to solve the above technical problems, a new type of sensor using the electrocatalytic degradation of seabed sediment biofuel cells as the design principle has been invented. System, test battery performance (including current, voltage and other indicators), evaluate the degradation effect of oil pollution in real time, realize in-situ monitoring and remote control of the entire system, etc.

Method used

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  • Seafloor sediment biological fuel cell sensor system for in-situ monitoring of organic pollutant degradation
  • Seafloor sediment biological fuel cell sensor system for in-situ monitoring of organic pollutant degradation
  • Seafloor sediment biological fuel cell sensor system for in-situ monitoring of organic pollutant degradation

Examples

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Effect test

Embodiment 1

[0027] Example 1 ： This implementation case is used to illustrate the application of the biofuel cell sensor system in the seabed sediment layer to in-situ monitoring of the degradation effect of seabed petroleum pollutants.

[0028] The carbon fiber negative electrode 1 (length 1m, width 1m, thickness 0.2m, composed of multiple titanium carbon fiber brushes) and the reference electrode saturated calomel electrode 3 of the seabed sediment biofuel cell were placed in the sea mud, at a distance from the sea mud / The seawater interface is 30cm; the battery graphite rod cylindrical positive electrode 2 (diameter 0.5m, height 1m) is suspended in seawater, 20cm away from the sea mud / seawater interface; it is connected by wires to form a battery. In order to reduce the influence of polarization, adjust the rheostat box 4 connected in series between the positive and negative poles of the battery to 1000 ohms, connect the battery to a data acquisition instrument 5, place it on the u...

Embodiment 2

[0030] Example 2： This implementation case is used to illustrate the application of the biofuel cell sensor system in the seabed sediment layer to in-situ monitoring of the degradation effect of seabed petroleum pollutants.

[0031] The carbon felt negative electrode 1 (length 1m, width 1m, thickness 0.2m) and the reference electrode saturated calomel electrode 3 of the seabed sediment biofuel cell are placed in the sea mud, 60cm away from the sea mud / sea water interface; the battery graphite rod cylinder The shape positive electrode 2 (diameter 0.5m, height 1m) is suspended in seawater, 20cm away from the interface of sea mud / seawater; it is connected by wires to form a battery. In order to reduce the influence of polarization, adjust the rheostat box 4 connected in series between the positive and negative poles of the battery to 1000 ohms, connect the battery to a data acquisition instrument 5, place it on the upper part of the sea mud / seawater interface, and pass through ...

Embodiment 3

[0033] Example 3 ： This implementation case is used to illustrate the application of the biofuel cell sensor system in the seabed sediment layer to in-situ monitoring of the degradation effect of seabed petroleum pollutants.

[0034] The carbon rod negative electrode 1 (length 1m, width 1m, thickness 0.2m) and the reference electrode saturated calomel electrode 3 of the seabed sediment biofuel cell are placed in the sea mud, 100cm away from the sea mud / seawater interface; the battery graphite rod cylinder The shape positive electrode 2 (diameter 0.5m, height 1m) is suspended in seawater, 20cm away from the interface of sea mud / seawater; it is connected by wires to form a battery. In order to reduce the influence of polarization, adjust the rheostat box 4 connected in series between the positive and negative poles of the battery to 1000 ohms, connect the battery to a data acquisition instrument 5, place it on the upper part of the sea mud / seawater interface, and pass through...

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Abstract

The invention discloses a seafloor sediment biological fuel cell sensor system for in-situ monitoring of organic pollutant degradation. The system takes the electrical catalytic degradation effect of a seafloor biological fuel cell as a design principle, that is, bacteria in seafloor sediment decompose organic pollutants (such as petroleum pollutants) continuously, electrons are produced, a negative pole is arranged in sea mud, a positive pole is arranged in seawater, the electrons are transferred to the negative pole by attaching to the bacteria and then are transferred to the positive pole through a lead, continuous current is formed, and current and voltage signals of the system are tested; the degradation effect of the petroleum pollutants can be monitored and evaluated in situ according to the correlation of the magnitude of the current and the pollutant system degradation rate. Meanwhile, the system can improve the petroleum degradation efficiency and increase the environment restoration speed, can further be used for performing biomass power generation to drive a small monitoring instrument on the seafloor to operate. The in-situ monitoring technology for seafloor pollutant degradation, accelerated seafloor pollutant degradation and seafloor biological energy generation are combined, and a novel seafloor sediment biological fuel cell sensor monitoring system is developed.

Description

technical field [0001] The invention belongs to the technical field of in-situ monitoring of marine organic pollutants (such as petroleum) and environmental restoration and treatment, and in particular relates to the in-situ monitoring of petroleum pollutants by a bio-fuel cell in a seabed sediment layer as a sensor system and acceleration of the degradation of petroleum pollutants. Background technique [0002] For a long time, the pollution of the marine environment has become more and more serious. In recent years, serious marine oil pollution incidents have occurred both at home and abroad. In 2009, the collapse of an oil platform in the Gulf of Mexico in the United States caused large-scale oil pollution; in 2009, a pipeline explosion in Dalian, China caused a serious oil spill; The oil leakage of the oil pipeline of the Gulf oil production platform and so on have caused serious ecological disasters. At present, the accumulation of petroleum pollutants on the seabed an...

Claims

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Application Information

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IPC IPC(8): G01N27/416H01M8/16
CPCY02E60/50
Inventor 付玉彬孟瑶英明
Owner OCEAN UNIV OF CHINA
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