CN-122010249-A - Spiral-flow electrochemical reactor for organic wastewater

CN122010249ACN 122010249 ACN122010249 ACN 122010249ACN-122010249-A

Abstract

The invention discloses a cyclone electrochemical reactor for organic wastewater, which belongs to the field of electrochemical reaction devices and comprises a reactor shell, wherein a second cathode, an anode and a first cathode are vertically arranged in the shell from inside to outside in sequence, the first cathode and the anode are distributed at intervals, the first cathode and the anode are annular bodies, a first cavity is partitioned between the first cathode and the anode, the middle part of the anode and the reactor shell is partitioned into a second cavity, a water inlet pipe and a water outlet pipe are respectively arranged on one opposite side surface of the reactor shell, the top end of the first cathode is detachably connected with the reactor shell, organic matters are rapidly diffused to an electrode interface through cyclone shearing force, and a strong oxidant is directly oxidized or indirectly generated by combining the action of an anode electric field, so that the mass transfer effect is improved on the basis of reducing the treatment cost of the organic wastewater, and the treatment efficiency of the organic wastewater is further improved.

Inventors

LI HAIYAN
CUI BO
HE JIANWU
FAN XIAOTONG
HUANG XIAOYUN
LI CHENGLI

Assignees

贵州工程应用技术学院

Dates

Publication Date: 20260512
Application Date: 20260410

Claims (7)

1. The utility model provides a whirl electrochemical reactor for organic waste water, its characterized in that, includes the reactor casing, from inside to outside vertically is equipped with second negative pole, positive pole and first negative pole in proper order in the casing, interval distribution between the three, first negative pole with the positive pole is the cyclic annular body, first negative pole with separate between the positive pole and be first cavity, positive pole with the middle part of the reactor casing separates to be the second cavity, a relative side of the reactor casing is equipped with inlet tube and the outlet pipe that the level set up respectively, inlet tube with outlet pipe one end all inserts and locates in the casing, and place in the mouth of pipe in the casing with the casing inside wall is tangent, so that rivers tangential entering in the casing with the casing inside wall collides and forms the whirl, first negative pole top with the reactor casing is dismantled to be connected, the bottom with the reactor casing exists the interval and forms first opening, the positive pole bottom with the reactor casing inboard is dismantled to be connected, the top with the reactor casing inboard exists the interval and forms the second opening, inlet tube, first cavity, first opening, second opening, the passageway are formed to the fluid.
2. The cyclone electrochemical reactor for organic wastewater according to claim 1, wherein the anode 3 is coated with a Ti 4 O 7 high-activity coating layer which produces OH and has low chlorine evolution on both inner and outer sides.
3. The cyclone electrochemical reactor for organic wastewater according to claim 1, wherein the reactor housing has a cylindrical structure, and the water inlet pipe and the water outlet pipe are perpendicular to the outer wall surface of the housing.
4. A spiral-flow electrochemical reactor for organic wastewater according to claim 1, characterized in that the distances between the first cathode and the anode and between the anode and the second cathode are equal.
5. The cyclone electrochemical reactor for organic wastewater according to claim 1, wherein the housing comprises a cylindrical body, an upper cover and a lower cover are detachably connected to the upper end and the lower end of the cylindrical body, respectively, the upper end of the first cathode is in threaded connection with the upper cover, and the lower end of the anode is in threaded connection with the lower cover.
6. The cyclone electrochemical reactor for organic wastewater according to claim 1, wherein the upper end of the housing is connected with an exhaust valve, and the upper and lower ends of the second cathode are detachably connected with the upper cover and the lower cover, respectively.
7. A spiral-flow electrochemical reactor for organic wastewater according to claim 1, wherein the first cathode and the anode each employ a hollow tubular electrode and the second cathode employs a solid cylindrical electrode.

Description

Spiral-flow electrochemical reactor for organic wastewater Technical Field The invention belongs to the field of electrochemical reaction, and particularly relates to a cyclone electrochemical reactor for organic wastewater. Background The electrochemical advanced oxidation degrades organic matters which are difficult to degrade by microorganisms in the wastewater through direct oxidation and indirect oxidation which generates strong oxidant, and the electrochemical advanced oxidation has the characteristics of high automation degree, no secondary pollution, no need of adding other medicaments, convenient movement, low site requirement and the like, but the existing reactor has the characteristics of low mass transfer, high energy consumption and the like, and the market effect can be achieved by optimizing electrode materials, reactor design and system control. The rotational flow electrochemical reactor utilizes the design of the rotational flow electrochemical reactor to generate rotational flow shearing force, thereby fully improving the mass transfer effect between pollutants and electrodes and improving the direct oxidation efficiency of the electrode surfaces. In addition, the electrical conductivity of the electrochemically treated organic wastewater generally meets the treatment requirement, and the wastewater generally contains abundant chloride ions Cl -, and the generated active chlorine (Cl, OCl, HOCl, OCl -、Cl2 and the like) and the strong oxidant such as hydroxyl free radicals are utilized to indirectly oxidize and degrade the organic matters, so that the mineralization effect of the organic matters difficult to degrade is realized. However, the existing cyclone reactor has the characteristics of low mass transfer, high energy consumption and the like, and the market effect can be achieved only by optimizing electrode materials and reactor design. Disclosure of Invention In order to solve the problems, the invention provides the cyclone electrochemical reactor for the organic wastewater, so that the reaction efficiency is improved, and the full treatment function of the high-salt refractory organic wastewater is realized. In order to solve the problems, the invention adopts the following technical scheme: The utility model provides a whirl electrochemical reactor for organic waste water, includes the reactor casing, be equipped with second negative pole, positive pole and first negative pole in proper order vertically from inside to outside in the casing, interval distribution between the three, first negative pole with the positive pole is the cyclic annular body, first negative pole with separate for first cavity between the positive pole, positive pole with the reactor casing middle part separates for the second cavity, a relative side of reactor casing is equipped with inlet tube and the outlet pipe that the level set up respectively, the inlet tube with outlet pipe one end is all inserted and is located in the casing, and place in the mouth of pipe in the casing with the casing inside wall is tangent, so that rivers tangential entering in the casing with the casing inside wall collides and forms the whirl, first negative pole top with the reactor casing is dismantled to be connected, the bottom with the reactor casing exists the interval and forms first opening, the positive pole bottom with the reactor casing is inboard is dismantled to be connected, the top with there is the interval to form the second opening in the reactor casing inboard, the inlet tube first cavity, first opening, the second opening and the complete passageway of fluid. Further, the inner side and the outer side of the anode are coated with Ti 4O7 high-activity coating which generates OH and has low chlorine evolution. Further, the reactor shell is of a cylindrical structure, and the water inlet pipe and the water outlet pipe are perpendicular to the outer wall surface of the shell. Further, the distances between the first cathode and the anode and the distances between the anode and the second cathode are equal. Further, the shell comprises a cylindrical shell, an upper cover and a lower cover are detachably connected to the upper end and the lower end of the cylindrical shell respectively, the upper end of the first cathode is in threaded connection with the upper cover, and the lower end of the anode is in threaded connection with the lower cover. Further, the upper end of the shell is connected with an exhaust valve, and the upper end and the lower end of the second cathode are respectively and detachably connected with the upper cover and the lower cover. Further, the first cathode and the anode are hollow tubular electrodes, and the second cathode is a solid columnar electrode. The beneficial effects obtained by the invention by adopting the structure are as follows: The traditional electrochemical reactor has high energy consumption and poor treatment effect due to slow mass transfer, and the invention rapidl