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Artificial wetland coupling microbial fuel cell (MFC) system and method for improving removal efficiency of organic matters

A technology of artificial wetlands and organic matter, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems that have not been reported, improve microbial activity, solve environmental problems, The effect of promoting degradation

Inactive Publication Date: 2012-02-15
SOUTHEAST UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the research on the application of MFC in constructed wetlands has not been reported at home and abroad.

Method used

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  • Artificial wetland coupling microbial fuel cell (MFC) system and method for improving removal efficiency of organic matters
  • Artificial wetland coupling microbial fuel cell (MFC) system and method for improving removal efficiency of organic matters
  • Artificial wetland coupling microbial fuel cell (MFC) system and method for improving removal efficiency of organic matters

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Embodiment Construction

[0019] Such as figure 1 and figure 2 As shown, the constructed wetland coupling MFC system is composed of constructed wetland loading MFC. The system is distributed from bottom to top with a coarse gravel layer, an activated carbon layer, an insulating gravel layer, a top conductive material layer and plants. The activated carbon layer constitutes the anode of the MFC, and the top conductive material layer Constituting the cathode of the MFC, the cathode and anode electrodes are respectively led out by wires and connected to an external circuit. Constructed wetland coupled with MFC can greatly improve the removal efficiency of organic matter in wastewater. The method and process are as follows: First, the wastewater enters the constructed wetland through the water intake area. The biofilm formed by the growth of a large number of microorganisms on the surface of the gravel is initially degraded by adsorption, retention, and decomposition; then, the initially degraded wastewa...

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Abstract

The invention discloses an artificial wetland coupling microbial fuel cell (MFC) system. The system is characterized by consisting of an artificial wetland loaded with an MFC and is provided with a coarse grit layer, an activated carbon layer, an insulation grit layer, a top conducting material layer and plants from bottom to top, wherein the cathode of the MFC is formed by the activated carbon layer; the anode of the MFC is formed by the top conducting material layer; and an anode electrode and a cathode electrode are led out through conducting wires and connected with an external circuit respectively. The invention also discloses a method for improving the removal efficiency of organic matters by using the artificial wetland coupling MFC system. By the artificial wetland coupling MFC system, the degradation way of the organic matters is expanded, the removal efficiency of the organic matters, particularly organic matters which are difficult to degrade are substantially improved, andthe electricity production performance of the MFC is improved at the same time; electric energy is acquired while wastewater is promoted to degrade; and the system and the method are effective ways for relieving the current energy crisis and solving environmental problems, and have immeasurable development potential.

Description

technical field [0001] The invention belongs to the field of energy and water treatment, and in particular relates to a water quality treatment method for the production capacity and water quality of a constructed wetland coupled with MFC (Microbial Fuel Cell, microbial fuel cell), which is suitable for recycling electric energy in sewage treatment and improving the energy efficiency of organic matter removal. [0002] Background technique [0003] With the continuous development of the economy, energy and environmental issues have become increasingly prominent. The report of the United Nations Environment Program shows that the environment of the whole planet is deteriorating in an all-round way, and environmental problems are a global problem. If energy and environmental issues are not effectively resolved, not only will it be difficult to achieve the goal of sustainable development of human society, but the living environment and quality of life of human beings will also...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 宋海亮李先宁吴磊项文力
Owner SOUTHEAST UNIV
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