Device and method for preparing biochar-mediated solid biofilm MFC accelerator

A technology for preparing devices and biofilms, which is applied to biochemical fuel cells, electrical components, battery electrodes, etc., can solve the problems of increasing power generation efficiency, long startup time, shortening startup time, etc., and achieves the effect of convenient operation and simple structure

Active Publication Date: 2019-06-04
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to apply the advantages of biochar-mediated biofilm technology to the MFC field, and avoid the shortcoming of too long start-up time caused by the time-consuming biofilm method, is to realize the shortened start-up time and rapid enrichment and stability of MFC. It is an important problem to be solved to improve the utilization rate of organic fuel and coulombic efficiency, reduce the internal resistance of the battery, and increase the efficiency of electricity production. It is also an important problem to be solved to promote the application and promotion of MFC technology.

Method used

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  • Device and method for preparing biochar-mediated solid biofilm MFC accelerator
  • Device and method for preparing biochar-mediated solid biofilm MFC accelerator

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Embodiment 1

[0063] A biochar-mediated solid biofilm MFC promoter preparation device, comprising a microbial fuel cell unit, a heating unit and a vacuum freeze-drying unit; the microbial fuel cell unit includes an anode chamber and a cathode separated by a proton exchange membrane 7 Chamber 1; the anode chamber includes an anode chamber a area 3 and an anode chamber b area 2, and the two intervals are separated by a filter plate 13, and the filter plate 13 is provided with equidistant screen holes 12; the anode chamber a area 3 is equipped with There is an anode 6, a cathode 8 and an aeration strip 20 are installed in the cathode chamber 1, and the surface of the cathode 8 is loaded with a cathode catalyst; between the anode 6 and the cathode 8, a wire 26 and an external resistance 25 and electric switch 24 link to each other; Described heating unit comprises constant temperature heater 23, jacket 5, heating tube 19 and reheating tube 17; Described vacuum freeze-drying unit comprises vacuum...

Embodiment 2

[0082] A preparation method of a biochar-mediated solid biofilm MFC accelerator, based on a biochar-mediated solid biofilm MFC accelerator preparation device of embodiment 1, comprising the steps of:

[0083] S1 Preparation of MFC solid biofilm:

[0084] S1.1 medium preparation:

[0085] Medium: Yeast extract 1g, beef extract 3g, peptone 10g, sucrose 10g, NaCl 5g, K 2 HPO 4 ·3H 2 O 1g, MgSO 4 ·7H 2 O 1g, CaCl 2 0.5g, (NH 4 ) 2 SO 4 2g, Na 2 S·9H 2 O 1g, trace element 10mL, vitamin 10mL (p H 7.0-7.4); among them,

[0086] Trace elements (g / L): N (CH2COOH) 3 4.5 (aminoacetic acid), FeCl 2 4H 2 O 0.4, MnCl H 2 O0.1, CoCl 2 ·6H 2 O 0.12, AlK ( SO 4 ) 2 0.01, ZnCl 2 0.1, NaCl 1, CaCl 2 0.02, Na 2 MoO 4 0.01, H 3 BO 3 0.01, NiCl 2 ·6H 2 O 0.42;

[0087] Vitamins (g / L): Biotin 2.0, Thiamine 5.0, Pyridoxine Hydrochloride 10, D-Pantocalcic Acid 5.0, Alpha Lipoic Acid 5.0, Folic Acid 2.0, Riboflavin 5.0, Niacin 5.0, P-Aminoic Acid 5.0 , Vitamin B ...

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Abstract

The invention relates to a device and method for preparing a biochar-mediated solid biofilm MFC accelerator. The device comprises a microbial fuel cell unit, a heating unit and a vacuum freeze-dryingunit. An anode chamber of the microbial fuel cell unit comprises an anode chamber a region and an anode chamber b region which are separated by a filter plate, and the filter plate is provided with equally spaced sieve holes and a brushed scraper. The present invention also discloses a method for preparing the MFC accelerator by using the device. The preparation of the biochar-mediated solid biofilm MFC promoter is effectively realized, the oxygen-free operation of the preparation process is ensured, the provided preparation device has the advantages of simple and compact structure and convenient operation and plays a positive role in shortening an MFC startup time, rapidly enriching and stabilizing anode chamber microorganisms, effectively improving the sufficiency of MFC organic matter degradation and the efficiency of the conversion of chemical energy into electrical energy in an organic matter, reducing the internal resistance of a battery, and improving the efficiency of electricity generation.

Description

technical field [0001] The invention relates to a preparation device and a preparation method of a microbial fuel cell accelerator, belonging to the technical fields of resource utilization and environmental protection, and microbial fuel cells. In particular, it relates to a biochar-mediated solid biofilm MFC accelerator preparation device and preparation method. Background technique [0002] Microbial Fuel Cell (MFC) is a bioelectrochemical device that uses microbial metabolic processes to directly convert chemical energy in biomass into electrical energy. MFC can use organic matter in waste components such as agricultural and forestry waste, sludge, urban waste, and industrial polluted waste water to convert into electricity and other energy substances, which meets the requirements of turning waste into wealth and being environmentally friendly. A very promising technology. With the deepening of research and the advancement of technology, the efficiency of microbial fue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/88H01M8/16
CPCY02E60/50
Inventor 邱凌陈潇
Owner NORTHWEST A & F UNIV
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