CN-224226816-U - Sulfur disproportionation reactor and reaction system

CN224226816UCN 224226816 UCN224226816 UCN 224226816UCN-224226816-U

Abstract

The utility model discloses a sulfur disproportionation reactor and a reaction system. The sulfur disproportionation reactor comprises a reactor main body, a stirring device, an alkali adjusting device, a water inlet aeration device and a pneumatic buffer device. The reactor comprises a reactor main body, a stirring device, an alkali adjusting device, a water inlet aeration device and an air pressure buffer device, wherein the reactor main body is provided with a hollow inner cavity, a top cover is covered above the inner cavity, the stirring device is arranged on the top cover and extends to the bottom of the inner cavity, the alkali adjusting device comprises an acid-alkali monitoring probe and an alkali source container, the acid-alkali monitoring probe extends into the inner cavity, the alkali source container is communicated with the inner cavity, the water inlet aeration device comprises a water inlet container and an air pressure bottle, the water inlet container is respectively communicated with the inner cavity and the air pressure bottle, the water inlet container is sealed by a cover, and the air pressure buffer device is communicated with the inner cavity. The utility model keeps the sludge in the reactor in a flowing state through the stirring device. Is beneficial to improving the mass transfer efficiency. Dissolved oxygen in the inlet water is removed through the inlet water aeration equipment, and the cover is added for sealing, so that the anaerobic condition required inside the reactor is maintained.

Inventors

PENG LAI
HAN YAOKUN
LU ZHIKUN
XU YIFENG

Assignees

武汉理工大学

Dates

Publication Date: 20260512
Application Date: 20250617

Claims (10)

1. A sulfur disproportionation reactor, comprising: a reactor body having a hollow interior cavity, a top cover covering the interior cavity; the stirring device is arranged on the top cover and extends to the bottom of the inner cavity; The alkali adjusting device comprises an acid-base monitoring probe and an alkali source container, wherein the acid-base monitoring probe extends into the inner cavity, and the alkali source container is communicated with the inner cavity; The water inlet aeration equipment comprises a water inlet container and a nitrogen cylinder, wherein the water inlet container is respectively communicated with the inner cavity and the nitrogen cylinder, and the water inlet container is covered and sealed; And the air pressure buffer device is communicated with the inner cavity.
2. The sulfur disproportionation reactor according to claim 1, wherein said stirring device comprises a stirrer, a motor and a speed regulator, said motor is mounted on said top cover and is in transmission connection with one end of said stirrer, the other end of said stirrer extends to the bottom of said inner cavity, and said speed regulator is electrically connected with said motor.
3. The sulfur disproportionation reactor according to claim 1, wherein the top cover is provided with a feed inlet with a valve, and the side wall of the reactor main body is provided with a first water inlet, a gas inlet, a first water outlet, a gas outlet, an alkali adding port and a sampling port which are respectively provided with a valve.
4. A sulfur disproportionation reactor according to claim 3, wherein said alkali regulating means further comprises a metering pump and an alkali source pipe, said alkali source container being in communication with said metering pump, said metering pump being in communication with said alkali addition port through said alkali source pipe.
5. The sulfur disproportionation reactor of claim 4, wherein the alkali regulating device further comprises a controller, and the controller is respectively connected with the acid-base monitoring probe and the metering pump in a signal manner.
6. A sulphur disproportionation reactor according to claim 3, wherein the inlet aeration apparatus further comprises an inlet peristaltic pump and an inlet pipe, the inlet container being in communication with the inlet peristaltic pump, the inlet peristaltic pump being in communication with the first inlet port through the inlet pipe.
7. The sulfur disproportionation reactor according to claim 6, wherein said water inlet aeration device further comprises a gas valve and a gas pipe, said gas valve is provided at an outlet of said nitrogen gas cylinder, and said nitrogen gas cylinder is communicated with said water inlet container through said gas valve and said gas pipe.
8. A sulfur disproportionation reactor according to claim 3, further comprising a water outlet device comprising a water outlet container, a water outlet peristaltic pump and a water outlet pipe, said water outlet peristaltic pump being in communication with said first water outlet, said water outlet peristaltic pump being in communication with said water outlet container through said water outlet pipe.
9. A sulfur disproportionation reaction system, characterized by comprising a connecting peristaltic pump and at least two sulfur disproportionation reactors as claimed in any one of claims 1 to 8, wherein the connecting peristaltic pump is respectively communicated with the two sulfur disproportionation reactors.
10. The sulfur disproportionation reaction system according to claim 9, wherein said reactor body is further provided with a second water inlet and a second water outlet, wherein the second water outlet of one of said reactor bodies is communicated with the second water inlet of the other of said reactor bodies through said connecting peristaltic pump.

Description

Sulfur disproportionation reactor and reaction system Technical Field The utility model relates to the technical field of sewage treatment, in particular to a sulfur disproportionation reactor and a reaction system. Background Sulfur autotrophic denitrification (Sulfur autotrophic denitrification, SADN) is an autotrophic denitrification process in which elemental sulfur is used as an electron donor to gradually reduce nitrate to nitrogen. Compared with the traditional heterotrophic denitrification, the sulfur autotrophic denitrification has the characteristics of high denitrification efficiency, less mud production, no need of adding carbon source and no carbon dioxide emission, and really realizes 'carbon saving and nitrogen reduction'. However, elemental sulfur as an electron donor has low solubility and poor bioavailability, greatly limiting the rate of autotrophic denitrification of sulfur. Sulfur-based autotrophic disproportionation (Sulfur autotrophic disproportionation, SADP) is widely recognized as an important step in the natural sulfur cycle, a process that converts elemental sulfur into sulfides and sulfates. The sulfide and elemental sulfur react to form polysulfide, thereby improving the bioavailability of the elemental sulfur and remarkably improving the denitrification rate. The common sulfur autotrophic and sulfur disproportionation reactors mostly adopt a packed bed structure, and the reactors generally fill elemental sulfur into the reactor in a filler form, and have the problems of reactor blockage and low mass transfer efficiency although the structure is simple. In addition, in the process of converting the autotrophic denitrification of sulfur into anaerobic, the common water inlet mode can enable the water inlet to contain oxygen, so that the anaerobic environment of the reactor is impacted, and the reaction rate is influenced. In summary, the conventional sulfur disproportionation reactor has the technical problems of easy blockage and reduced reaction rate. Disclosure of utility model The application aims to overcome the technical defects, and provides a sulfur disproportionation reactor and a reaction system, which solve the technical problems of easy blockage and reduced reaction rate in the prior art. In order to achieve the technical purpose, the application adopts the following technical scheme: in a first aspect, the application provides a sulfur disproportionation reactor, which comprises a reactor main body, a stirring device, an alkali adjusting device, a water inlet aeration device and a pneumatic buffer device. A reactor body having a hollow interior cavity, a top cover covering the interior cavity; the stirring device is arranged on the top cover and extends to the bottom of the inner cavity; The alkali adjusting device comprises an acid-base monitoring probe and an alkali source container, wherein the acid-base monitoring probe extends into the inner cavity, and the alkali source container is communicated with the inner cavity; The water inlet aeration equipment comprises a water inlet container and a nitrogen cylinder, wherein the water inlet container is respectively communicated with the inner cavity and the nitrogen cylinder, and the water inlet container is covered and sealed; And the air pressure buffer device is communicated with the inner cavity. In some embodiments of the present application, the stirring device includes a stirrer, a motor, and a speed regulator, wherein the motor is mounted on the top cover and is in transmission connection with one end of the stirrer, the other end of the stirrer extends to the bottom of the inner cavity, and the speed regulator is electrically connected with the motor. In some embodiments of the application, the top cover is provided with a feed inlet with a valve, and the side wall of the reactor main body is provided with a first water inlet, a gas inlet, a first water outlet, a gas outlet, an alkali adding port and a sampling port which are respectively provided with a valve. In some embodiments of the application, the alkali regulating device further comprises a metering pump and an alkali source pipe, wherein the alkali source container is communicated with the metering pump, and the metering pump is communicated with the alkali adding port through the alkali source pipe. In some embodiments of the application, the alkali regulating device further comprises a controller, and the controller is respectively connected with the acid-base monitoring probe and the metering pump in a signal manner. In some embodiments of the application, the water inlet aeration device further comprises a water inlet peristaltic pump and a water inlet pipe, wherein the water inlet container is communicated with the water inlet peristaltic pump, and the water inlet peristaltic pump is communicated with the first water inlet through the water inlet pipe. In some embodiments of the application, the water inlet aeration device further comprises a