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Two-chambered alga microbial fuel cell and treatment wastewater method of low energy consumption thereof

A fuel cell and wastewater treatment technology, applied in biochemical fuel cells, fuel cells, sustainable biological treatment, etc., can solve the problems of high energy consumption and high cost, and achieve the effect of low energy consumption

Active Publication Date: 2010-10-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of large energy consumption and high cost in the existing aerobic biological treatment process due to the use of external aeration in the wastewater treatment process, and to provide a double-chamber algae microbial fuel cell and its low-energy consumption wastewater treatment method. method

Method used

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  • Two-chambered alga microbial fuel cell and treatment wastewater method of low energy consumption thereof
  • Two-chambered alga microbial fuel cell and treatment wastewater method of low energy consumption thereof
  • Two-chambered alga microbial fuel cell and treatment wastewater method of low energy consumption thereof

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specific Embodiment approach 1

[0014] Embodiment 1: In this embodiment, the double-chamber algae microbial fuel cell consists of an anode 1, a cathode 2, a diaphragm 3, a sampling port 4, an anode chamber 6, a cathode chamber 7, a water inlet 8, a water outlet 9, a casing 11, an outer The circuit 10 and the wire 5 constitute, the anode chamber 6 and the cathode chamber 7 are separated by a diaphragm 3, and a vacuum pad is sandwiched between the diaphragm 3 and the anode chamber 6 and the cathode chamber 7 (to keep the seal), and the anode chamber 6 is provided with Anode 1 and cathode chamber 7 are provided with cathode 2, anode 1 and cathode 2 are connected to external circuit 10 provided outside housing 11 through wire 5, water inlets 8 are respectively opened on the side walls of cathode chamber 7 and anode chamber 6 , and have water outlets 9 respectively at the bottom of the side wall, the cathode chamber 7 is made of plexiglass (to ensure sufficient sunlight), and algae are added in the cathode chamber...

specific Embodiment approach 2

[0016] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the material of the anode 1 is carbon cloth, carbon paper, carbon felt, carbon brush, activated carbon particles, graphite plate, graphite particle, stainless steel plate, Stainless steel mesh, titanium plate or titanium mesh. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0017] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the carbon brushes are pretreated, and the carbon brush pretreatment method is to heat the carbon brushes at 450°C for 30 minutes, and then cool them to room temperature, then soaked in 10% H 2 SO 4 solution for 10 minutes, then neutralized with a 10% NaOH solution, and finally washed with distilled water. Others are the same as in the second embodiment.

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Abstract

The invention relates to a two-chambered alga microbial fuel cell and treatment wastewater method of low energy consumption thereof, belonging to the field of wastewater treatment. The invention resolves the problem that the current aerobic biological treatment process has large energy consumption and high cost because of adopting the imposed aeration. An anode chamber of two-chambered alga microbial fuel cell is connected with a cathode chamber thereof through a diaphragm; a vacuum pad is arranged on the position among the diaphragm, the anode chamber and the cathode chamber; the anode chamber is provided with an anode and the cathode chamber is provided with a cathode; the anode and the cathode are connected with an external circuit by a lead wire, wherein the external circuit is positioned outside the two-chambered alga microbial fuel cell. The method comprises the following steps: firstly, a reactor is started; secondly, the wastewater enters into the cathode chamber and the anode chamber, the microorganism degrades to metabolize organics and simultaneously gets electrical energy under the room temperature; cathode alga provides oxygen for the cathode chamber by the photosynthesis. The alga microbial fuel cell can be the main structure of wastewater and aerobic treatment, which can replace the roles of an aeration tank, a biological filter, an aeration oxidation pond and the like in a wastewater treatment factory so as to reduce the energy consumption of the aerobic biological treatment.

Description

technical field [0001] The invention belongs to the field of wastewater treatment; in particular, it relates to a double-chamber algae microbial fuel cell and a method for treating wastewater with low energy consumption. Background technique [0002] At present, biochemical methods are commonly used to treat wastewater at home and abroad. According to whether aeration is required during the treatment process, biological treatment methods can be divided into two categories: aerobic biological treatment methods and anaerobic biological treatment methods. [0003] The aerobic biological treatment technology adopts the method of adding aeration to supplement oxygen to the wastewater, and uses aerobic microorganisms to degrade the organic pollutants in the wastewater. Activated sludge method, delayed aeration method, biofilm method, deep well aeration method, etc. are more representative aerobic biological treatment methods. Aerobic biological treatment technology requires larg...

Claims

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Application Information

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IPC IPC(8): H01M8/16H01M8/06C02F3/02H01M4/94
CPCY02E60/527Y02E60/50Y02W10/10
Inventor 冯玉杰刘佳王鑫
Owner HARBIN INST OF TECH
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