Alternative Alternatecathode and anode denitrification and dephosphorization microbial fuel cell

Abstract

The invention discloses an alternative cathode and anode denitrification and dephosphorization microbial fuel cell which comprises a reaction system and a data acquisition and monitoring system, wherein the whole reaction system consists of two inner loop sub-reaction systems which are in the same structure and mutually independent; each sub-reaction system comprises a reaction chamber, an electrode, a water inlet pipe, a water outlet pipe, a constant flow pump hose, an air blowing pump, a buffer bottle, an aeration head, a constant flow pump, a microbe and an electrolyte; the reaction chambers of the two sub-reaction systems are separated by a proton exchange membrane; the electrodes of the two sub-reaction systems are clung to cling tothe two sides of the proton exchange membrane; the air blowing pumps of the two sub-reaction systems are alternatively opened and closed; and the data acquisition and monitoring system comprises conductive wires, a load, lead wires, a data acquisition device and a computer. In anaerobic stages of anode chambers, an anaerobic phosphorus release process of phosphorus-accumulating bacteria is completed by using an organic matter as fuel. In aeration stages of cathode chambers, denitrification, dephosphorization and electrogenesis functions are synchronously achieved by using oxygen and nitric nitrogen as electron acceptors.

Description

Technical field [0001] The invention belongs to the technical field of biofuel cells, and particularly relates to an alternate cathode and anode microbial fuel cell for nitrogen and phosphorus removal. Background technique [0002] Nitrogen and phosphorus are important limiting factors that cause eutrophication of water bodies. In the process of human production and life, large amounts of nitrogen and phosphorus are discharged into slow-flowing water bodies such as lakes, estuaries, and bays, causing eutrophication of water bodies and causing water bodies. Algae and other plankton multiply rapidly, the dissolved oxygen in the water body decreases, the water quality deteriorates, and a large number of fish and other organisms die. The prevention and control of eutrophication is the most complicated and difficult problem in water pollution treatment. At present, the most commonly used biological nitrogen and phosphorus removal process is the A (anoxic) / O (aerobic) process. This m...

AI Technical Summary

Problems solved by technology

This method has good nitrogen and phosphorus removal effects, but has problems such as high energy consumption and large amount of residual sludge.

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