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Method and device for detecting toxic material in water using microbial fuel cell

A technology of toxic substances and fuel cells, applied in enzymology/microbiology devices, biomass pretreatment, biochemical cleaning devices, etc., can solve expensive problems and achieve the effect of preventing illegal discharge of pollutants

Inactive Publication Date: 2005-07-27
江阴易沃森生物环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It requires various light detection devices, which makes it expensive and requires personnel and experts to maintain

Method used

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  • Method and device for detecting toxic material in water using microbial fuel cell
  • Method and device for detecting toxic material in water using microbial fuel cell
  • Method and device for detecting toxic material in water using microbial fuel cell

Examples

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Embodiment Construction

[0030] specific implementation plan

[0031] 1st preferred embodiment

[0032] Activated sludge is added to the anode part so that the active bacteria in the sludge can attach to the electrodes and be intensively cultivated. Air-saturated water is added to the cathode part to maintain a definite potential difference for efficient bioelectrochemical reactions in microbial fuel cells. Glucose and glutamic acid (CODcr 200ppm, which represent the chemical oxygen demand due to potassium dichromate) are added to the microbial fuel cell as fuel, and are measured with a voltmeter (20 million multimeters, Keithley Instruments, Inc., U.S.) every 60 seconds Generated current, at the same time, add Cr with concentrations of 0.01ppm, 0.02ppm, 0.03ppm, 0.04ppm, and 0.05ppm to the fuel cell used 6+ standard solution. The results show that the current value is generally a constant value, and the Cr 6+ The current value drops suddenly at 0.04ppm. ( figure 2 )

[0033] Second preferred ...

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Abstract

The present invention relates to a method and device for detecting the toxic materials in water by using an electrochemically active microorganism. Described in details, the present invention comprises the steps of: determining the electrical signals, generated by the microbial fuel cell; introducing the sample into the above-mentioned fuel cell; and determining the degree of changes in the electrochemical signals, generated by the above-mentioned microbial fuel cell, in order to provide a method for detecting the toxic materials in water. Thus, according to the present invention, when toxic materials are present in the sample for determination, generation of electricity by the electrically active bacteria in the microbial fuel cell is decreased remarkably, maximizing the sensitivity in determining the toxic materials. The use of the microbial fuel cell minimizes the cost and the personnel for the management and the maintenance of the sensor part.

Description

technical field [0001] The invention relates to a method and a device for detecting toxic substances in a biological way. Specifically, the present invention relates to a method for automatically detecting toxic substances with a microbial fuel cell and an automatic alarm device thereof. Background technique [0002] To date, many researchers have developed early detection and alarm devices for toxic substances entering water. Among these traditional devices for determining toxic substances in water, there are chemical and biological detection devices. For the chemical detection device, because it can quantitatively measure a few substances among many substances present in water, its application range is limited. It also has the disadvantage of requiring expensive equipment and highly skilled engineers for detection. In order to make up for this shortcoming, various biological devices for detecting toxic substances in water have been developed. [0003] Representative co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/28C12M1/34C12Q1/02G01N27/416G01N27/49G01N33/18
CPCC12Q1/025G01N33/1866C12M1/3407C12Q1/02
Inventor 金亨周崔大元玄文湜南盛铉
Owner 江阴易沃森生物环境科技有限公司
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