Water treatment method of microbial fuel cell

A fuel cell water and treatment method technology, which is applied in the fields of magnetic field/electric field water/sewage treatment, energy wastewater treatment, light water/sewage treatment, etc., can solve the problems of refractory wastewater treatment difficulties, save treatment costs, and improve biochemical The effect of low performance and selectivity

Inactive Publication Date: 2012-07-25
SOUTHEAST UNIV
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  • Claims
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Problems solved by technology

[0004] Microbial fuel cell is a new type of electricity-generating water treatment device, which relies on bacteria to decompose organic matter to generate elec

Method used

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  • Water treatment method of microbial fuel cell
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  • Water treatment method of microbial fuel cell

Examples

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Embodiment 1

[0025] Example 1: Anatase-type titanium dioxide TiO doped with elements whose mass ratio of element fluorine to titanium is 1:200 2 Photocatalyst added to azo dye solution, element-doped anatase TiO 2 The mass ratio of photocatalyst to azo-type dye is 15:1, ultrasonically oscillate for 0.5 hours to reach adsorption equilibrium, and then perform photocatalysis: use a light source to irradiate the solution while stirring for 2 hours, and circulate the photocatalyzed solution Type vacuum pump decompression filtration; then according to the ratio of easy biochemical organic matter and the organic matter mass ratio in the photocatalyzed solution to be 6:1, add it as microbial carbon source to the fully activated microbial fuel cell water treatment device, wherein the battery temperature is controlled at 30°C±1°C, the anode chamber of the battery is sealed and the pH value of the solution is controlled at about 7.

Embodiment 2

[0026] Example 2: Anatase-type titanium dioxide TiO doped with an element with a mass ratio of elemental silver to titanium of 1:100 2 Photocatalyst added to azo dye solution, element-doped anatase TiO 2 The mass ratio of photocatalyst to azo-type dye is 1:1, ultrasonically oscillate for 1 hour to reach adsorption equilibrium, and then perform photocatalysis: use a light source to irradiate the solution while stirring for 1 hour, and pass the photocatalyzed solution through micro Pore ​​membrane filtration; then mixed according to the mass ratio of easy biochemical organic matter and organic matter in the solution after photocatalysis as 2:1 as microbial carbon source and added to the fully activated microbial fuel cell water treatment device, wherein the battery temperature was controlled at 30 ℃±1℃, the anode chamber of the battery is sealed and the pH value of the solution is controlled at about 7.

Embodiment 3

[0027] Example 3: Anatase-type titanium dioxide TiO doped with an element with a ratio of element nitrogen to titanium mass of 1:150 2 Photocatalyst added to azo dye solution, element-doped anatase TiO 2 The mass ratio of the photocatalyst to the azo dye is 5:1, ultrasonically oscillate for 40 minutes to reach adsorption equilibrium, and then perform photocatalysis: use a light source to irradiate the solution while stirring for 1.5 hours, and pass the photocatalyzed solution through micro Pore ​​filter membrane filtration; then mixed according to the mass ratio of easy biochemical organic matter and organic matter in the solution after photocatalysis is 10:1 as microbial carbon source and added to the fully activated microbial fuel cell water treatment device, wherein the battery temperature is controlled at 30 ℃±1℃, the anode chamber of the battery is sealed and the pH value of the solution is controlled at about 7.

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Abstract

The invention discloses a water treatment method of a microbial fuel cell. After waste water difficult to degrade is catalyzed by TiO2 with visible-light activity under visible light or sunlight, the waste water difficult to degrade and waste water easy for biochemistry are mixed to together serve as a carbon source of a microbial fuel cell, so that the degradation rate of the waste water difficult to degrade is enhanced; meanwhile, the invention provides a method for enhancing the bioavailability and the efficiency of the microbial fuel cell by combining a mixed fuel technology of photocatalytic treatment; the power density and the water treatment efficiency of the microbial fuel cell can be enhanced; and moreover, the utilization range of organic waste water can be widened.

Description

technical field [0001] The invention relates to a novel water treatment method, in particular to the refractory wastewater treatment technology of TiO2 photocatalysis with visible light activity combined with microbial fuel cells. Background technique [0002] In 1972, Fujishima first reported the wide bandgap semiconductor material TiO 2 Charge separation and redox reactions can occur under light irradiation. Due to TiO 2 Nanomaterials have the advantages of stable chemical properties, non-toxicity, high catalytic performance, and low selectivity to the degradation of organic wastewater, especially the element-doped TiO 2 Nanomaterials have good absorption under visible light, so element-doped TiO 2 The research and application of photocatalytic oxidation of refractory organic wastewater by nanomaterials has attracted widespread attention. [0003] The general wastewater treatment process includes chemical treatment (ozone oxidation, ultrasonic oxidation, etc.), physica...

Claims

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Application Information

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IPC IPC(8): C02F1/48C02F1/30
CPCY02W10/37
Inventor 付德刚凡现朋戎非蔡小敏齐洁婷苏林林晓霞
Owner SOUTHEAST UNIV
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