CN214495822U - Electrochemical catalytic oxidation device and system for treating wastewater - Google Patents
Electrochemical catalytic oxidation device and system for treating wastewater Download PDFInfo
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- CN214495822U CN214495822U CN202023162941.5U CN202023162941U CN214495822U CN 214495822 U CN214495822 U CN 214495822U CN 202023162941 U CN202023162941 U CN 202023162941U CN 214495822 U CN214495822 U CN 214495822U
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Abstract
The utility model relates to a waste water treatment field discloses an electrochemistry catalytic oxidation device for handling waste water, and it includes the casing. Two electrodes are arranged on two sides of the shell. The bottom of the shell is provided with a water distribution area, an aeration area and a backwashing area, and a water outlet area is arranged above the shell; the shell between the water outlet area and the water distribution area is filled with catalyst. And the gas washing flange of the gas washing area is connected with the gas storage tank. The water distribution tank for containing the pretreated wastewater is connected with the water inlet flange of the water distribution area through a water distribution pipe. The utility model also discloses a system that contains above-mentioned electrochemistry catalytic oxidation device. The utility model discloses a three-dimensional electrode catalysis pond carries the material technique, washes material technique, water distribution gas distribution technique, realizes catalytic oxidation method continuous processing waste water, need not additionally to add chemical reagent in the operation process, does not produce secondary pollution, only consumes the electric energy in the operation, and the running cost is low, also overcomes simultaneously among the prior art catalyst owing to be attached to the defect of becoming invalid easily by the filth.
Description
Technical Field
The utility model relates to a waste water treatment field, especially an electrochemistry catalytic oxidation device and system for handling waste water.
Background
The high-concentration pharmaceutical wastewater has the characteristics of high pollutant concentration, complex organic matter components, complex organic matter molecular structure, large molecular weight and the like. Traditional high concentration pharmacy waste water often adopts entering anaerobism aerobic combination technology after simple materialization is handled, and its dwell time is very long to cause the anaerobism pond size very big, and construction cost increases, nevertheless because of waste water concentration is high, and biodegradability is poor, even multistage anaerobism is established ties its treatment effect also very unsatisfactory, and it can't reach standard to go out water. Although the Fenton method is adopted to treat high-concentration pharmaceutical wastewater, the problems can be solved, the biodegradability is improved, and the organic load is reduced, the Fenton method is harsh in operating conditions and high in operating difficulty in industrial application, a large amount of salts such as acid, alkali and the like need to be added in the Fenton method, the salts are increased to be unfavorable for subsequent biochemical treatment, the operating control difficulty is high, the adding amount of the agents is large, and the operating cost is very high. Enterprises are difficult to bear.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrochemistry catalytic oxidation device and system for handling waste water, the utility model discloses a three-dimensional electrode catalysis pond carries the material technique, washes material technique, water and gas distribution evenly technique, realizes catalytic oxidation method continuous processing high concentration pharmacy waste water, and the operation in-process need not plus chemical reagent, does not produce secondary pollution, only consumes the electric energy in the operation, and the running cost is low, also overcomes catalyst simultaneously among the prior art because the defect of being adhered to by the filth and inefficacy easily.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses an electrochemistry catalytic oxidation device for handling waste water, it includes casing, distribution tank, distribution pipe, gas holder, electrode anode and electrode cathode. The water distribution tank is positioned at the top of the shell. The electrode anode and the electrode cathode are arranged on two sides of the shell and are connected with a power supply. The bottom of the shell is provided with a water distribution area, an aeration area and a backwashing area, and a water outlet area is arranged above the shell; the shell between the water outlet area and the water distribution area is filled with catalyst. The backwashing area comprises a gas washing flange, a gas washing pipe group and an emptying flange, and the water distribution area comprises a water inlet flange and a water distribution pipe group. The gas washing flange, the emptying flange and the water inlet flange are arranged on the shell, and the gas washing pipe group and the water distribution pipe group are respectively provided with a plurality of air outlet holes and water outlet holes. The gas outlet end of the gas washing flange and the water outlet end of the water inlet flange are respectively connected with the gas washing pipe group and the water distribution pipe group, and the gas inlet end of the gas washing flange and the water inlet end of the water inlet flange are respectively connected with the three-way valve and the gas storage tank; the three-way valve is respectively connected with the water distribution pipe and the tap water pipe; the water distribution pipe is connected with a water distribution tank for containing the pretreated wastewater.
Furthermore, the electrode anode adopts a graphite carbon plate, and the electrode cathode adopts a stainless steel plate.
The aeration area comprises a plurality of aeration components, each aeration component comprises an aeration flange arranged on the shell, an aeration connecting pipe vertically arranged and an aeration pipe network consisting of a plurality of horizontal pipelines provided with a plurality of air outlets; the aeration flange is arranged at the upper end of the shell, the aeration pipe network is arranged at the bottom of the shell, one end of the aeration connecting pipe is connected with the air outlet end of the aeration flange, and the other end of the aeration connecting pipe is connected with the air inlet of the aeration pipe network; the air inlet end of the aeration flange is connected with the blower; the water outlet area comprises a water collecting pipe for collecting the wastewater after catalytic oxidation and a water outlet flange which is connected with the water collecting pipe and arranged on the shell; the water collecting pipe is provided with a plurality of water inlet holes.
Furthermore, the gas washing pipe group comprises a vertically arranged gas washing connecting pipe and a gas washing pipe network consisting of a plurality of horizontal pipelines; the blowoff valve sets up in the casing lower extreme, the gas washing flange sets up in the casing upper end, and the gas washing pipe network sets up in the casing bottom, and gas washing connecting pipe one end is connected with the end of giving vent to anger of gas washing flange, and the other end is connected with the air inlet of gas washing pipe network.
Further, the water inlet flange is arranged at the lower end of the shell; the upper end of the housing is also provided with a foam flange for discharging the active agent foam or for overflow.
The utility model also discloses an electrochemical catalytic oxidation system for treating wastewater, which comprises a neutralization tank, a coagulation reaction tank, a first sedimentation tank, an electrochemical catalytic oxidation device, an anaerobic-aerobic combined device and a second sedimentation tank which are connected in sequence through pipelines; the electrochemical catalytic oxidation device is the electrochemical catalytic oxidation device for treating the wastewater.
Furthermore, a water inlet connected with a waste water pipe and used for entering the neutralization pond and a PH probe used for monitoring the PH value in water in real time are arranged on the neutralization pond; the upper end of the first sedimentation tank is connected with a water distribution tank of the electrochemical catalytic oxidation device.
The utility model discloses an useful part is:
1. the utility model discloses a supporting gas holder of electrochemistry catalytic oxidation device for store compressed air and carry out the backwash, utilize the compressed air in the gas holder to release in the twinkling of an eye during the backwash, utilize a large amount of air of the great atmospheric pressure of compression and instantaneous release to make the catalyst inflation fluidization, the supplementary running water washes again, can wash the pollutant that the operation in-process produced. The backwashing system of the traditional catalytic oxidation device adopts a common air blower and a backwashing water pump to carry out steam-water combined backwashing, but the air pressure generated by the common air blower is small, the backwashing air quantity is not enough, and the backwashing is not thorough.
2. The utility model discloses a supporting distributing channel of electrochemistry catalytic oxidation device, distributing channel are located electrochemistry catalytic oxidation device top, and distributing channel and water distribution bank of tubes are connected, realize the uniform water distribution through distributing channel and water distribution pipe. Meanwhile, the problem that the equipment is damaged due to the fact that waste water flows back to the regulating reservoir through a water inlet pipeline in the electrochemical advanced oxidation power-on operation process due to faults of a check valve and the like can be solved by additionally arranging the water distribution tank.
3. The utility model discloses in the electrochemistry catalytic oxidation method of handling waste water, waste water at first passes through the PH adjustment, enters electrochemical catalytic oxidation device after the coagulating sedimentation, more can exert the treatment effect of electrochemistry catalytic oxidation device to high concentration pharmacy waste water, need not plus chemical reagent among the electrochemistry catalytic oxidation device operation process, does not produce secondary pollution, only consumes electric energy in the operation, and the running cost is low.
Drawings
FIG. 1 is a schematic front view of an electrochemical catalytic oxidation apparatus.
FIG. 2 is a schematic front sectional view of an electrochemical catalytic oxidation apparatus.
FIG. 3 is a schematic left-side view of the electrochemical catalytic oxidation apparatus.
FIG. 4 is a schematic diagram of the right view of the electrochemical catalytic oxidation device.
FIG. 5 is a schematic side sectional view of an electrochemical catalytic oxidation apparatus.
FIG. 6 is a schematic structural diagram of an aeration pipe network of the electrochemical catalytic oxidation device.
FIG. 7 is a schematic diagram of the structure of a gas-wash pipe network of an electrochemical catalytic oxidation device.
FIG. 8 is a schematic diagram of the structure of the water distribution pipe group of the electrochemical catalytic oxidation device.
FIG. 9 is a schematic diagram of an electrochemical catalytic oxidation system.
Description of the main component symbols:
1. the device comprises a shell, 2, a water distribution tank, 3, a water distribution pipe, 4, a gas storage tank, 5, an electrode anode, 6, an electrode cathode, 7, a catalyst, 8, a gas washing flange, 10, an emptying flange, 11, a water inlet flange, 12, a water distribution pipe group, 13, a three-way valve, 14, a tap water pipe, 16, an aeration flange, 17, an aeration connecting pipe, 18, an aeration pipe network, 19, a water collecting pipe, 20, a water outlet flange, 21, a gas washing connecting pipe, 22, a gas washing pipe network, 23 and a foam flange.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
as shown in fig. 1 to 8, the utility model discloses an electrochemical catalytic oxidation device for treating wastewater, which comprises a shell 1, a water distribution tank 2, a water distribution pipe 3, a gas storage tank 4, a blower, an electrode anode 5 and an electrode cathode 6.
The electrode anode 5 and the electrode cathode 6 are arranged on two sides of the shell 1 and are connected with a power supply. The electrode anode 5 is made of a graphite carbon plate, and the electrode cathode 6 is made of a stainless steel plate. The bottom of the shell 1 is provided with a water distribution area, an aeration area and a backwashing area, and a water outlet area is arranged above the shell 1. The interior of the shell 1 between the water outlet zone and the water distribution zone is filled with a catalyst 7.
The water distribution area comprises a water inlet flange 11 and a water distribution pipe group 12. The water inlet flange 11 is arranged at the lower end of the shell 1, and the water distribution pipe group 12 is provided with a plurality of water outlet holes. The water outlet end of the water inlet flange 11 is connected with the water distribution pipe group 12, and the water inlet end is connected with a three-way valve 13 with a valve switch. One end of the three-way valve 13 is connected with a water distribution tank 2 arranged at the top of the shell 1 through a water distribution pipe 3; the other end of the three-way valve 13 is connected to a tap water pipe 14 for backwashing. The water distribution area realizes uniform upward water distribution through the water distribution tank 2 and the water distribution pipe group 12. Meanwhile, the problem that the equipment is damaged due to the fact that waste water flows back to the regulating reservoir through a water inlet pipeline in the electrochemical advanced oxidation power-on operation process due to faults of a check valve and the like can be solved by additionally arranging the water distribution tank 2.
The backwash zone comprises a gas wash flange 8, a gas wash tube bank and an emptying flange 10. An evacuation flange 10 is provided at the upper end of the housing 1 on the opposite side of the water inlet flange 11. The gas-washing pipe group comprises a vertically arranged gas-washing connecting pipe 21 and a gas-washing pipe network 22 consisting of a plurality of horizontal pipelines provided with a plurality of air outlet holes. The gas washing flange 8 is arranged at the upper end of the shell 1, and the gas washing pipe network 22 is arranged at the bottom of the shell 1. One end of the gas-washing connecting pipe 21 is connected with the gas outlet end of the gas-washing flange 8, and the other end is connected with the gas inlet of the gas-washing pipe network 22. The air inlet end of the air washing flange 8 is connected with the air storage tank 4. During backwashing, the air pressure of compressed air is controlled to be 6-8kg, one end of a three-way valve 13 where a water distribution pipe 3 is located is closed, switches of an air storage tank 4 and a tap water pipe 14 are opened simultaneously, compressed air in the air storage tank 4 is released instantly, a catalyst 7 is expanded and fluidized by using air with larger compression pressure and a large amount of air released instantly, tap water is assisted to flush, pollutants generated in the operation process can be cleaned, and sewage is discharged from an emptying flange 10 by opening the emptying flange 10.
The aeration zone includes a plurality of aeration assemblies, and this embodiment uses two sets of aeration assemblies, sets up respectively in the both sides in backwash zone. The aeration component comprises an aeration flange 16 arranged on the shell 1, an aeration connecting pipe 17 vertically arranged and an aeration pipe network 18 consisting of a plurality of horizontal pipelines provided with a plurality of air outlets. The aeration flange 16 is arranged at the upper end of the shell 1, the aeration pipe network 18 is arranged at the bottom of the shell 1, one end of the aeration connecting pipe 17 is connected with the air outlet end of the aeration flange 16, and the other end is connected with the air inlet of the aeration pipe network 18; the air inlet end of the aeration flange 16 is connected with a blower.
The water outlet area comprises a water collecting pipe 19 for collecting the wastewater after catalytic oxidation and a water outlet flange 20 which is connected with the water collecting pipe 19 and arranged on the shell 1; the water collecting pipe 19 is provided with a plurality of water inlet holes.
For better use, the upper end of the housing 1 is also provided with a foam flange 23 for discharging the active agent foam or for overflow.
Example two:
as shown in fig. 1 to 9, the utility model discloses an electrochemical catalytic oxidation system for treating wastewater, which comprises a neutralization tank, a coagulation reaction tank, a first sedimentation tank, an electrochemical catalytic oxidation device, an anaerobic-aerobic combined device and a second sedimentation tank which are connected in sequence through pipelines; the electrochemical catalytic oxidation device is the electrochemical catalytic oxidation device for treating wastewater described in the first embodiment or the second embodiment or the third embodiment.
Wherein, a water inlet connected with the waste water pipe and used for entering and a PH probe used for monitoring the PH value in water in real time are arranged on the neutralization tank. The upper end of the first sedimentation tank is connected with a water distribution tank 2 of the electrochemical catalytic oxidation device. The wastewater enters the electrochemical catalytic oxidation device after being subjected to pH adjustment and coagulating sedimentation, so that the treatment effect of the electrochemical catalytic oxidation device on the high-concentration pharmaceutical wastewater can be better exerted, no chemical reagent is required to be added in the operation process of the electrochemical catalytic oxidation device, no secondary pollution is generated, only electric energy is consumed in the operation process, and the operation cost is low.
The electrochemical catalytic oxidation system is used by the following steps:
and S1, quantitatively lifting the high-concentration pharmaceutical wastewater into a neutralization pond through a lifting pump, monitoring the pH value of the wastewater in real time through a pH probe, and adjusting the pH value of the wastewater to be neutral through an information feedback control dosing pump.
And S2, automatically flowing the wastewater subjected to PH adjustment into a coagulation reaction tank, adding PAC and PAM coagulants to remove SS in the wastewater, and allowing the wastewater to enter a first sedimentation tank for mud-water separation.
And S3, sending the pretreated wastewater into a water distribution tank 2 of an electrochemical catalytic oxidation device for catalytic oxidation. Specifically, the filling amount of the catalyst 7 is 60-70% of the total volume of the electrochemical catalytic oxidation device, the pulse direct current voltage applied by the electrode is 50-80V, and the aeration amount is 0.1-0.3m3Min; the waste water stays in the electrochemical catalytic oxidation device for 25-35min, enters from the bottom of the shell 1 of the electrochemical catalytic oxidation device, is uniformly distributed with water and slowly rises to be contacted with the catalyst 7, and generates hydroxyl free radicals under the condition of electrifying by utilizing aeration to oxidize organic matters in the waste water, and the waste water flows through the catalyst 7 to react and then receives water from the top.
The utility model uses electric energy as excitation energy (pulse power supply) and inorganic matter as initiation, and utilizes O in the air2Nascent H is produced by the following chemical reaction mechanism2O2And further decomposed to form hydroxyl radical (. OH)
(1) Generation of H2O 2:
O2+e－→·O2 －
·O2 －+H+→HO2 －
2HO2 －→H2O2+O2
or:
·O2 －+HO2 －→O2+HO2 －
HO2 －+H+→H2O2
(2) formation of (& OH):
H2O2+e－→OH－+·OH
or:
H2O2+Fe2+→Fe3++OH－+·OH
s4, feeding the high-concentration pharmaceutical wastewater treated by the electrochemical catalytic oxidation device into a subsequent anaerobic-aerobic combined device, feeding the wastewater subjected to comprehensive treatment into a second sedimentation tank for sedimentation, and discharging the supernatant reaching the standard.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (7)
1. An electrochemical catalytic oxidation apparatus for treating wastewater, comprising: comprises a shell, a water distribution tank, a water distribution pipe, a gas storage tank, an electrode anode and an electrode cathode; the water distribution tank is positioned at the top of the shell;
the electrode anode and the electrode cathode are arranged on two sides of the shell and are respectively connected with a power supply;
the bottom of the shell is provided with a water distribution area, an aeration area and a backwashing area, and a water outlet area is arranged above the shell; a catalyst is filled in the shell between the water outlet area and the water distribution area;
the backwashing area comprises a gas washing flange, a gas washing pipe group and an emptying flange, and the water distribution area comprises a water inlet flange and a water distribution pipe group;
the gas washing flange, the emptying flange and the water inlet flange are arranged on the shell, and a plurality of air outlet holes and water outlet holes are respectively formed in the gas washing pipe group and the water distribution pipe group;
the gas outlet end of the gas washing flange and the water outlet end of the water inlet flange are respectively connected with the gas washing pipe group and the water distribution pipe group, and the gas inlet end of the gas washing flange and the water inlet end of the water inlet flange are respectively connected with the three-way valve and the gas storage tank; the three-way valve is respectively connected with the water distribution pipe and the tap water pipe; the water distribution pipe is connected with a water distribution tank for containing the pretreated wastewater.
2. An electrochemical catalytic oxidation apparatus for treating wastewater according to claim 1, characterized in that: the anode of the electrode adopts a graphite carbon plate, and the cathode of the electrode adopts a stainless steel plate.
3. An electrochemical catalytic oxidation apparatus for treating wastewater according to claim 1, characterized in that: the aeration area comprises a plurality of aeration components, each aeration component comprises an aeration flange arranged on the shell, an aeration connecting pipe vertically arranged and an aeration pipe network consisting of a plurality of horizontal pipelines provided with a plurality of air outlets; the aeration flange is arranged at the upper end of the shell, the aeration pipe network is arranged at the bottom of the shell, one end of the aeration connecting pipe is connected with the air outlet end of the aeration flange, and the other end of the aeration connecting pipe is connected with the air inlet of the aeration pipe network; the air inlet end of the aeration flange is connected with the blower; the water outlet area comprises a water collecting pipe for collecting the wastewater after catalytic oxidation and a water outlet flange which is connected with the water collecting pipe and arranged on the shell; the water collecting pipe is provided with a plurality of water inlet holes.
4. An electrochemical catalytic oxidation apparatus for treating wastewater according to claim 1, characterized in that: the gas washing pipe group comprises a vertically arranged gas washing connecting pipe and a gas washing pipe network consisting of a plurality of horizontal pipelines; the emptying flange is arranged at the lower end of the shell, the gas washing flange is arranged at the upper end of the shell, and the gas washing pipe network is arranged at the bottom of the shell; one end of the gas washing connecting pipe is connected with the gas outlet end of the gas washing flange, and the other end of the gas washing connecting pipe is connected with the gas inlet of the gas washing pipe network.
5. An electrochemical catalytic oxidation apparatus for treating wastewater according to claim 1, characterized in that: the water inlet flange is arranged at the lower end of the shell; the upper end of the housing is also provided with a foam flange for discharging the active agent foam or for overflow.
6. An electrochemical catalytic oxidation system for treating wastewater, comprising: comprises a neutralization tank, a coagulation reaction tank, a first sedimentation tank, an electrochemical catalytic oxidation device, an anaerobic-aerobic combined device and a second sedimentation tank which are connected in sequence through pipelines; the electrochemical catalytic oxidation apparatus for treating wastewater according to any one of claims 1 to 5.
7. An electrochemical catalytic oxidation system for treating wastewater according to claim 6, characterized in that: the neutralization pond is provided with a water inlet connected with the waste water pipe and used for monitoring the PH value in water in real time; the upper end of the first sedimentation tank is connected with a water distribution tank of the electrochemical catalytic oxidation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023162941.5U CN214495822U (en) | 2020-12-24 | 2020-12-24 | Electrochemical catalytic oxidation device and system for treating wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023162941.5U CN214495822U (en) | 2020-12-24 | 2020-12-24 | Electrochemical catalytic oxidation device and system for treating wastewater |
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| Publication Number | Publication Date |
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| CN214495822U true CN214495822U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023162941.5U Active CN214495822U (en) | 2020-12-24 | 2020-12-24 | Electrochemical catalytic oxidation device and system for treating wastewater |
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| Country | Link |
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| CN (1) | CN214495822U (en) |
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- 2020-12-24 CN CN202023162941.5U patent/CN214495822U/en active Active
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