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A stack-baffled microbial fuel cell and a method for using it to treat wastewater to achieve zero energy consumption

A fuel cell and waste water treatment technology, applied in biochemical fuel cells, fuel cells, biological water/sewage treatment, etc., can solve the problems of waste water not up to standard, high energy consumption, and inability to effectively recover energy

Active Publication Date: 2016-08-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing waste water treatment device consumes a lot of energy, cannot effectively recover energy and the treated waste water is not up to standard, and provide a stack baffle type microbial fuel cell and use it to treat waste water to achieve zero consumption able method

Method used

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  • A stack-baffled microbial fuel cell and a method for using it to treat wastewater to achieve zero energy consumption
  • A stack-baffled microbial fuel cell and a method for using it to treat wastewater to achieve zero energy consumption
  • A stack-baffled microbial fuel cell and a method for using it to treat wastewater to achieve zero energy consumption

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specific Embodiment approach 1

[0027]Embodiment 1: This embodiment is a stack baffle type microbial fuel cell including an open reaction box 1, a first microbial fuel cell 3, a second microbial fuel cell 5, a third microbial fuel cell 7, and a fourth microbial fuel cell Fuel cell 9, fifth microbial fuel cell 11, water inlet 2, water outlet 14, first socket 17, second socket 18, third socket 19, fourth socket 20, fifth socket 21, first water intake 4, The second water intake 6, the third water intake 8, the fourth water intake 10, the fifth water intake 12, the sixth water intake 13, the seventh water intake 15, the eighth water intake 22, the ninth water intake 23, the tenth water intake Water intake 24, eleventh water intake 25, water storage tank 34, water pump 35, high water tank 36, liquid flow meter 37 and sealing cover 16;

[0028] The left side wall of the open reaction box 1 is provided with a water inlet 2, the right side wall is provided with a water outlet 14 and the seventh water intake 15, and ...

specific Embodiment approach 2

[0047] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the thickness of the U-shaped partition 33 can be adjusted, and the thickness is 0.8 cm to 1.2 cm. Others are the same as the first embodiment.

[0048] The U-shaped separator 33 is placed between the two cells in the microbial fuel cell to form air cavities of different volumes, and the thickness of the U-shaped separator 33 is adjusted so that the oxygen concentration will not limit the electron-consuming reaction of the cathode.

specific Embodiment approach 3

[0049] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the first microbial fuel cell 3 is set at the first water intake 4 and the second water intake 6 inside the open reaction box 1 Between; the third microbial fuel cell 7 is arranged between the third water intake 8 and the fourth water intake 10 in the open reaction box 1; the fifth microbial fuel cell 11 is arranged in the first open reaction box 1 Between the fifth water intake 12 and the sixth water intake 13; the second microbial fuel cell 5 is arranged between the eighth water intake 22 and the ninth water intake 23 inside the open reaction box 1; the fourth microbial fuel cell 9 is arranged Between the tenth water intake 24 and the eleventh water intake 25 inside the open reaction box 1 . Others are the same as those in Embodiment 1 or 2.

[0050] This embodiment can indicate the removal trend of organic matter in the direction of water flow in the open reaction box 1 .

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Abstract

The invention relates to a stack baffling type microbial fuel cell and a method for treating waste water and achieving the zero energy consumption by using the stack baffling type microbial fuel cell, relates to a microbial fuel cell and a method for treating the waste water, and aims at solving the problems that a traditional device for treating the waste water has the huge energy consumption and can not be used for effectively recovering energy and the waste water treated by the traditional device can not reach the standard. The stack baffling type microbial fuel cell comprises an open reaction tank body, a biological fuel cell, a water inlet, a water outlet, an insertion opening, a water intake, a water storage tank, a water pump, a high-level water tank, a liquid flowmeter and a sealing cover plate. The method for treating the waste water comprises the following steps that the waste water enters the high-level water tank from the water storage tank by being pumped through the water pump, and the waste water inside the high-level water tank flows into the water inlet of the stack baffling type microbial fuel cell under the action of gravity; the liquid flowmeter controls the flow velocity of the waste water entering the water inlet; the waste water is degraded through microbes attached to anodes of multiple carbon fiber brushes. According to the invention, the stack baffling type microbial fuel cell can be obtained, and the zero energy consumption of beer waste water treatment can be achieved.

Description

technical field [0001] The invention relates to a microbial fuel cell and a method for treating waste water. Background technique [0002] A large amount of waste water is produced every year all over the world. Take beer waste water as an example: 20m3 per ton of beer is produced 3 According to the calculation of wastewater, the amount of wastewater discharged by my country's beer industry reaches 400 million m per year 3 . Brewery wastewater is mainly composed of wheat leaching water, washing tank water discharged from saccharification, brewing tank washing water, packaging bottle washing water and wort filtration cooling water. Beer wastewater discharges a large amount of water, and the organic wastewater with a medium concentration rich in starch, protein, sugar, etc. has good biochemical properties. COD is generally in the range of 2000-4000mg / L. If it is directly discharged into the surrounding water body, it will cause huge pollution to the environment. At present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/16H01M8/2465C02F3/34H01M8/04186
CPCH01M8/04186H01M8/16Y02E60/50
Inventor 冯玉杰董跃何伟华曲有鹏
Owner HARBIN INST OF TECH
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