MEDC (Microbial Electrolytic Desalting Cell) reactor device

Abstract

The invention relates to a MEDC (Microbial Electrolytic Desalting Cell) reactor device, and belongs to the technical field of biological treatment of wastewater. The MEDC reactor device comprises an anode chamber and a cathode chamber, wherein one group or multiple groups of ion exchange membrane pairs are arranged between the anode chamber and the cathode chamber; the anode chamber is internallyprovided with a biological carbon mat electrode; the anode chamber is provided with exoelectrogenic microbes; the cathode chamber is internally provided with a stainless steel mesh electrode; the biological carbon mat electrode is connected with the stainless steel mesh electrode through a guide wire and outer voltage; the anode chamber and the cathode chamber are connected by adopting a siliconetube so as to form a closed loop circuit; each ion exchange membrane pair comprises a cation exchange membrane and an anion exchange membrane; two adjacent ion exchange membranes in each ion exchangemembrane pair are separated by a chamber so as to form a product chamber; a closed loop circuit is formed by the product chamber by utilizing the silicone tube. According to the MEDC reactor device disclosed by the invention, resources such as nitrogen and phosphorus can be recycled from wastewater while the wastewater treatment is ensured, a buffer solution requires not to be additionally added,stability of pH (Potential of Hydrogen) of an electrode chamber can be realized, and the disadvantage of secondary pollution caused by adding the buffer solution in a traditional MEC (Microbial Electrolysis Cell) can be overcome.

Description

Technical field [0001] The invention relates to a microbial electrolysis desalination tank reactor device, belonging to the technical field of wastewater biological treatment. Background technique [0002] Due to the low utilization rate of the water environment by humans and lack of management, a large amount of sewage is generated. Excessive exploitation makes the shortage of fresh water resources and mineral resources such as phosphorus become the two main challenges facing the world. The realization of waste water treatment and reuse while achieving resource recovery is considered an important way to solve these two problems at the same time. However, the current urban sewage treatment energy consumption is very high. In the activated sludge treatment system, aeration is an indispensable process in the sewage treatment plant, accounting for the largest share of energy consumption, about 45% of the energy consumption of the sewage treatment plant -75%, while producing a large...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a microbial electrolysis desalination pool reactor (MEDC) device, which can recover resources such as nitrogen and phosphorus while ensuring that the sewage is treated, and can realize the stability of the pH of the electrode chamber without adding additional buffer solution, and overcome the traditional MEC Disadvantages of secondary pollution caused by adding buffer

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