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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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  • Abstract
  • Description
  • Claims
  • Application Information

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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 electricity, and people have begun to apply microbial fuel cell technology to the field of sewage treatment, but it is still difficult to treat refractory wastewater

Method used

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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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