A kind of preparation method of algae film cathode for microbial fuel cell

A technology of fuel cells and microorganisms, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of difficult, unstable, and reduced power output of cathode effluent

Inactive Publication Date: 2019-01-29
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cyanobacteria are generally considered to produce algal toxins that are harmful to biological health during the growth process, which makes it difficult to treat the cathode effluent using cyanobacteria to generate electricity; in addition, the algae that are simply adsorbed on the cathode are easy to fall off, resulting in a limited amount of fixed cells and power output. decrease, instability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of algae film cathode for microbial fuel cell
  • A kind of preparation method of algae film cathode for microbial fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method for an algae membrane cathode of a microbial fuel cell, comprising the following steps:

[0022] (1) Preparation of algae liquid: put the algae in the logarithmic growth phase into a centrifuge, maintain the speed of the centrifuge at 5500 rpm, centrifuge for 12 minutes to form algae mud, pour the algae mud into the Erlenmeyer flask 1, and use the sterilized The BG-11 medium prepared by the algae density is not less than 10 4 individual / mL algae liquid;

[0023] (2) Algae film cultivation: immerse the cut carbon felt 2 completely in the algae liquid, seal the Erlenmeyer flask with a sealing film, place the Erlenmeyer flask on the lighting surface of the room for cultivation, shake the flask 3 times a day, and continue 9 days, so that the carbon felt is covered with algae film, forming algae film carbon felt;

[0024] (3) Fix the algae film: Take out the algae film carbon felt from the Erlenmeyer flask with tweezers, and immediately put it into the...

Embodiment 2

[0027] A preparation method for an algae membrane cathode of a microbial fuel cell, comprising the following steps:

[0028] (1) Preparation of algae liquid: put the algae in the logarithmic growth phase into a centrifuge, maintain the speed of the centrifuge at 5000rpm, and form algae mud after centrifugation for 10 minutes, pour the algae mud into a conical flask, and use sterilized The BG-11 medium is prepared to form algae with a density of not less than 10 4 individual / mL algae liquid;

[0029] (2) Algae membrane cultivation: immerse the cut carbon felt completely in the algae solution, seal the Erlenmeyer flask with a sealing film, place the Erlenmeyer flask on the lighting surface of the room for cultivation, and shake the flask twice a day for 7 days. days, so that the carbon felt is covered with algae film, forming algae film carbon felt;

[0030] (3) Fix the algae film: Take out the algae film carbon felt from the Erlenmeyer flask with tweezers, and immediately put...

Embodiment 3

[0033] A preparation method for an algae membrane cathode of a microbial fuel cell, comprising the following steps:

[0034] (1) Preparation of algae liquid: put the algae in the logarithmic growth phase into a centrifuge, maintain the speed of the centrifuge at 6000 rpm, centrifuge for 15 minutes to form algae mud, pour the algae mud into a conical flask, and use sterilized The BG-11 medium is prepared to form algae with a density of not less than 10 4 individual / mL algae liquid;

[0035] (2) Algae membrane cultivation: immerse the cut carbon felt completely in the algae solution, seal the Erlenmeyer flask with a sealing film, place the Erlenmeyer flask on the lighting surface of the room for cultivation, and shake the flask 4 times a day for 10 days. days, so that the carbon felt is covered with algae film, forming algae film carbon felt;

[0036] (3) Fix the algae film: Take out the algae film carbon felt from the Erlenmeyer flask with tweezers, and immediately put it int...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method for an algal film cathode of a microbial fuel cell. The preparation method comprises the following steps: preparing an alga solution, namely, placing oedogonium in a logarithmic growth phase in a centrifugal machine for centrifuging to form alga paste, pouring the alga paste into a conical flask, and blending the alga paste into the alga solution with the density of not less than 10<4> algae / mL by adopting a BG-11 culture medium; culturing an algal film, namely, immersing a carbon felt into the alga solution, sealing the conical flask by adopting a sealing film, placing the conical flask on an indoor lighting surface for culturing, and shaking the conical flask two to four times a day and continuing culturing for seven to ten days to form an algal film carbon felt; fixing the algal film, namely, taking the algal film carbon felt from the conical flask, and soaking the algal film carbon felt in sodium alginate solution for one to two minutes to form a soaked carbon felt; preparing a finished product, namely, taking out the soaked carbon felt, placing the soaked carbon felt into CaCl2 solution, and standing for two to five hours to form the algal film cathode. According to the preparation method, common green algae are taken as a bio-film culturing stain; material taking and preparation are simple; cathode discharged effluent is pollution free; the algal film is fixed by adopting the sodium alginate, so that the cathode cell amount is kept sufficient and stable, and an output voltage is stable.

Description

technical field [0001] The invention relates to a method for preparing an algae membrane cathode, in particular to a preparation method for an algae membrane cathode used in a microbial fuel cell. Background technique [0002] The research and development of new energy and sustainable energy has become an important way to solve environmental pollution and energy crisis and realize sustainable development in today's world. Microbial Fuel Cell (MFC), as a new type of clean energy, has the advantages of high energy conversion efficiency, safety and pollution-free, and has attracted extensive attention from various countries. Cathode materials play an important role as electron acceptors in MFCs. Most of the MFCs currently studied use non-biological cathodes, but the cost of non-biological cathodes is high, and they are easy to pollute the catalyst, which is greatly limited in actual use. Compared with non-biological cathodes, MFCs with biological cathodes have the advantages ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H01M4/88
CPCH01M4/8892Y02E60/50
Inventor王海萍郑立国刘锋吴金水
OwnerINST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI