Combined ecological floating bed device for using microbial fuel cell to purify lake water

Abstract

The invention relates to a combined ecological floating bed device for using a microbial fuel cell to purify lake water. The combined ecological floating bed device for using the microbial fuel cell to purify the lake water comprises a combined ecological floating bed and the microbial fuel cell, wherein the combined ecological floating bed comprises a surface aquatic plant unit, a middle aquatic animal unit and a lower artificial medium unit from the top to the bottom; the aquatic plant unit consists of aquatic economic plants (1) and a conductive material (2) for fixing the aquatic plants; the aquatic animal unit is used for aquaculturing predatory aquatic animal shellfish (3); in the artificial medium unit, an active carbon nanoparticle artificial medium (4) is enriched with a great number of microbes to form a high-efficiency biomembrane purifying area; the combined ecological floating bed device for using the microbial fuel cell to purify the lake water is characterized in that the conductive material (2) is led out of the device through a conductive wire (5) to form an air cathode electrode of the microbial fuel cell. The combined ecological floating bed device for using the microbial fuel cell to purify the lake water can improve the water quality fundamentally and can recycle energy, and is applicable to large-scale, modeled and mechanical work.

Description

technical field [0001] The invention belongs to the field of energy and environment restoration, in particular to a combined ecological floating bed coupling MFC (Microbial Fuel Cell, microbial fuel cell) device suitable for water body pollution restoration and recovery of electric energy and biomass energy. Background technique [0002] Water is the source of life and an irreplaceable important resource, but the water resource crisis has become a restrictive factor for the social and economic development of many countries in the world today. According to statistics, in the past 50 years, the consumption of fresh water in the world has increased by nearly 4 times, up to 4130 Km per year. 3 , agricultural water use accounts for 60% of all water use. In recent years, along with my country's high-input, low-output extensive economic growth mode and people's weak environmental protection awareness, a large number of pollutants have been discharged directly, resulting in changes...

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Problems solved by technology

[0006] At present, the combined ecological floating bed coupling MFC device has not been reported at home and abroad

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