CN108467101A - A kind of catalytic reaction device administered for river sewage - Google Patents
A kind of catalytic reaction device administered for river sewage Download PDFInfo
- Publication number
- CN108467101A CN108467101A CN201810564077.XA CN201810564077A CN108467101A CN 108467101 A CN108467101 A CN 108467101A CN 201810564077 A CN201810564077 A CN 201810564077A CN 108467101 A CN108467101 A CN 108467101A
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- Prior art keywords
- positive electrode
- electrode
- negative electrode
- metal
- insulating support
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention discloses a kind of catalytic reaction device administered for river sewage.The special a whole set of electrode that the present invention includes insulating support, is placed in insulating support；The special a whole set of electrode includes doped tin oxide coatings positive electrode, metal negative electrode, metallic plate, doped tin oxide coatings positive electrode is arranged with metal negative electrode transpostion interval, metallic plate is located in the interval of negative electrode and positive electrode, but not with metal negative electrode, positive electrode contact；The arrangement insulation net on each face of insulating support, for encapsulating negative electrode and positive electrode.The present invention is using the doped tin oxide coatings with very high electrocatalysis characteristic as positive electrode, during energization electrolysis water, no diaphragm, without adding chlorine and not adding any chemical reagents under conditions of, stink, ammonia nitrogen and the total phosphorus in river sewage can quickly be eliminated, and the effect of catalytic reaction device processing ammonia nitrogen is not influenced by urban river water flow velocity, to achieve the purpose that quickly to administer river sewage and not generate secondary pollution.
Description
Technical field
The invention belongs to electrochemical catalytic oxidations to administer river sewage field, be related to a kind of electricity administered for river sewage
Catalyst reaction device.
Background technology
City river pollution problem getting worse is especially receiving the halfway city of pipe, largely to rainwater, sewage separation
Sanitary sewage in addition trade effluent be directly discharged in city river, seriously pollute city river.Currently, pollution city river
The main reason for road water is due to ammonia nitrogen in sewage, and total phosphorus is exceeded, and urban river water is caused to black, is smelly.Traditional river regulation side
Method, if ecological green is planted, microbial degradation etc. can not all degrade the ammonia nitrogen of river sewage middle and high concentration and phosphorus.
Currently, Electrocatalytic Oxidation is utilized to the ammonia nitrogen in removal sewage.It is decisive that electrocatalytic oxidation removes ammonia nitrogen
What is acted on is the electrocatalytic properties of positive electrode material.Ammonia nitrogen in Electrocatalytic Oxidation removal sewage based on existing positive electrode,
It needs to contain a large amount of chlorion in sewage.If there is no chlorion in sewage, electrocatalytic oxidation of the existing positive electrode to ammonia nitrogen
It can hardly realize, degradation of ammonia nitrogen has little effect.In addition, only managing in the more existing technique for industrial wastewater ammonia nitrogen removal
Chlorion need not be added, but its cell body is diaphragm cell, and cathode needs to add nitrite.However, for
For city river sewage, it is practically free of chlorion, and the urban river water scale of construction is big, so existing electro-catalysis removes ammonia nitrogen technology,
Nitrate is added in such as electro-catalysis diaphragm cell and cathode, cannot meet to the ammonia nitrogen removal demand in river sewage.Therefore,
City river waste water control is so far or a problem.
Invention content
The purpose of the present invention is being directed to refractory this problem of reason of existing waterway sewage, provide a kind of using electrocatalytic oxidation skill
Art, in the case where not adding chlorine, ammonia nitrogen and phosphorus in the river sewage that can directly and quickly degrade it is anti-without diaphragm electro-catalysis
Answer device.
The technological means that the present invention uses is as follows：
The present invention is used for the catalytic reaction device that river sewage is administered, including insulating support, is placed in insulating support
Special the whole series electrode；The special a whole set of electrode includes coating of metal oxides positive electrode, metal negative electrode, metallic plate, gold
Belonging to oxide coating positive electrode to arrange with metal negative electrode transpostion interval, metallic plate is located in the interval of negative electrode and positive electrode,
But not with metal negative electrode, positive electrode contact；
The arrangement insulation net on each face of insulating support, for encapsulating negative electrode and positive electrode；Coating of metal oxides sun
Electrode is connected by positive electrode binding post with the anode of external power, the cathode that metal negative electrode passes through cathode terminal and external power
It is connected；Immersible pump is installed on each face other than top surface of insulating support and positioned at the outside of insulation net；It is insulating
The bottom installation insulation tripod of holder, for supporting whole device.
The metallic oxide coating electrode is doped tin oxide coatings positive electrode.
The oxygen evolution potential of coating of metal oxides positive electrode is higher than 1.5V (reference mark hydrogen electrode), preferably higher than 2.5V
(reference mark hydrogen electrode).
The metallic plate is aluminium sheet or iron plate.
The spacing of positive electrode and adjacent negative electrode is 2-5mm.
The present invention remarkable advantage be：
The present invention is to use the doped tin oxide coatings with very high electrocatalysis characteristic as positive electrode, in the mistake of energization electrolysis water
Cheng Zhong, no diaphragm, without adding chlorine and not adding any chemical reagents under conditions of, can quickly eliminate in river sewage
Stink, ammonia nitrogen and total phosphorus, and the catalytic reaction device processing ammonia nitrogen effect do not influenced by urban river water flow velocity, to
Achieve the purpose that quickly to administer river sewage and does not generate secondary pollution.
Description of the drawings
Fig. 1 is the vertical view of catalytic reaction device structure, and 1 is insulating support in figure, and 2 be coating of metal oxides positive electricity
Pole, 3 be metal negative electrode, and 4 be metallic plate, and 5 be insulation net, and 6 be immersible pump.
Fig. 2 is the front view of catalytic reaction device structure, and 9 be insulation tripod in figure.
Fig. 3 is coating of metal oxides positive electrode structure chart, and 7 be titanium threaded bar in figure.
Fig. 4 is metal negative electrode structure chart, and 8 be stainless steel bar in figure.
Specific implementation mode
With reference to specific embodiment, the present invention is further analyzed.
As shown in Figure 1, 2, the catalytic reaction device that river sewage is administered, including insulating support 1, metal oxide are used for
Coating positive electrode 2, metal negative electrode 3, metallic plate 4, insulation net 5, immersible pump 6, positive electrode binding post 7, negative electrode binding post 8,
Insulate tripod 9；The insulating support 1 is frame structure, coating of metal oxides positive electrode 2,3 transpostion interval of metal negative electrode
Arrangement is arranged on insulating support 1；Metallic plate 4 is located in the interval of negative electrode 3 and positive electrode 2, but not with metal negative electrode, positive
Electrode contacts；
The insulation net 5 is mounted on six faces of insulating frame, and metal oxide positive electrode, negative electrode are wrapped up；
The immersible pump 6 is separately mounted to five in addition to the top surface face center on insulating frame, and in insulation net 5
Outside；
The insulation tripod 9 is placed in the bottom of insulating support 1；
As shown in figure 3,2 top of the metal oxide positive electrode welding positive electrode binding post 7；
As shown in figure 4,3 top of the metal negative electrode welding negative electrode binding post 8；
The coating of metal oxides positive electrode 2 be by one group of doped tin oxide coatings positive electrode board group at, between electrode plate between
It is divided into 4-10mm；
The coating of metal oxides positive electrode 2 is tin oxide positive electrode, and the oxygen evolution potential of the electrode is higher than 1.5V (references
Mark hydrogen electrode current potential), preferably higher than 2.5V (reference mark hydrogen electrode).
The metal negative electrode 3 be by one group of stainless steel electrode plate or copper electrode board group at, between electrode plate between be divided into
4-10mm；
The metallic plate 4 is stainless steel plate or aluminium sheet；
The positive electrode binding post 7 is titanium threaded bar；
The negative electrode binding post 8 is stainless steel threaded bar；
The spacing of the coating of metal oxides positive electrode and adjacent metal negative electrode is 2-5mm；
The mesh diameter of the insulation net 4 is in 3-5mm.
Embodiment 1
(1) positive electrode of the selection containing 5 pieces of doped tin oxide coatings electrode plates, the oxygen evolution potential of doped tin oxide coatings anode plate are
2.5V, polar plate interval 6mm weld titanium threaded bar at the top of positive electrode；
(2) selection contains 6 pieces of metal negative electricity pole plates, polar plate interval 6mm, the soldering stainless steel screw thread at the top of negative electrode
Stick；
(3) negative electrode and positive electrode transpostion interval are arranged and ensures being spaced about between negative electricity pole plate and positive electricity pole plate
3mm is mounted in insulating support；
(4) it is that stainless steel plate after 0.5mm is inserted between negative electricity pole plate and positive electricity pole plate, and is ensured not with two by thickness
Pole plate contacts.
(5) the insulation net for being 3mm with aperture is mounted on each face of insulating frame, and negative electrode and positive electrode are wrapped up
Come.
(6) in the bottom surface of insulating support, left and right side, front and back sides difference installing submersible pump.
(7) insulation tripod is installed in the bottom of insulating support.
(8) whole device is put into the river that water flow velocity is about 0.05m/s, it is ensured that whole device be immersed in the water surface with
Under, and DC power supply is accessed, it is 200A/m to upper current density is supplied on electrode2Electric current.
(9) immersible pump is opened, it is ensured that urban river water flows through electrocatalysis device so that urban river water is uniformly mixed.
(10) when equipment energization electrolytic zinc-coated steel sheet half, the ammonia nitrogen concentration of river sewage has 14mg/L to fall below 0.1mg/L, total phosphorus by
1.5mg/L falls below 0.2mg/L.
Embodiment 2
(1) positive electrode of the selection containing 5 pieces of doped tin oxide coatings electrode plates, the oxygen evolution potential of doped tin oxide coatings anode plate are
2.7V, polar plate interval 4mm weld titanium threaded bar at the top of positive electrode；
(2) selection contains 6 pieces of metal negative electricity pole plates, polar plate interval 4mm, the soldering stainless steel screw thread at the top of negative electrode
Stick；
(3) negative electrode and positive electrode transpostion interval are arranged and ensures being spaced about between negative electricity pole plate and positive electricity pole plate
2mm is mounted in insulating support；
(4) it is that stainless steel plate after 0.5mm is inserted between negative electricity pole plate and positive electricity pole plate, and is ensured not with two by thickness
Pole plate contacts.
(5) the insulation net for being 4mm with aperture is mounted on each face of insulating frame, and negative electrode and positive electrode are wrapped up
Come.
(6) in the bottom surface of insulating support, left and right side, front and back sides difference installing submersible pump.
(7) insulation tripod is installed in the bottom of insulating support.
(8) it is about in the rivers 0.09m/s whole device to be put into water flow velocity, it is ensured that whole device be immersed in the water surface with
Under, and DC power supply is accessed, it is 100A/m to upper current density is supplied on electrode2Electric current.
(9) immersible pump is opened, it is ensured that urban river water flows through electrocatalysis device so that urban river water is uniformly mixed.
(10) ammonia nitrogen concentration of equipment energization electrolytic zinc-coated steel sheet half an hour, river sewage have 15mg/L to fall below 0.07mg/L, always
Phosphorus falls below 0.3mg/L by 1.5mg/L.
Embodiment 3
(11) positive electrode of the selection containing 5 pieces of doped tin oxide coatings electrode plates, the oxygen evolution potential of doped tin oxide coatings anode plate are
1.5V is divided into 6mm between anode plate, and titanium threaded bar is welded at the top of positive electrode；
(12) selection contains 6 pieces of metal negative electricity pole plates, is divided into 6mm between cathode plate, the soldering stainless steel spiral shell at the top of negative electrode
Line stick；
(13) negative electrode and positive electrode transpostion interval are arranged and ensures the spacing between negative electricity pole plate and positive electricity pole plate about
For 3mm, it is mounted in insulating support；
(14) by thickness be 0.5mm after aluminium sheet be inserted between negative electricity pole plate and positive electricity pole plate, and ensure not with the two poles of the earth
Plate contacts.
(15) the insulation net for being 3mm with aperture is mounted on each face of insulating frame, and negative electrode and positive electrode are wrapped up
Come.
(16) in the bottom surface of insulating support, left and right side, front and back sides difference installing submersible pump.
(17) insulation tripod is installed in the bottom of insulating support.
(18) it is about in the rivers 0.13m/s whole device to be put into water flow velocity, it is ensured that whole device be immersed in the water surface with
Under, and DC power supply is accessed, it is 200A/m to upper current density is supplied on electrode2Electric current.
(19) immersible pump is opened, it is ensured that urban river water flows through electrocatalysis device so that urban river water is uniformly mixed.
When equipment energization electrolytic zinc-coated steel sheet half, the ammonia nitrogen concentration of river sewage has 17mg/L to fall below 0.3mg/L, total phosphorus by
1.2mg/L falls below 0.1mg/L.
Above-described embodiment is not for the limitation of the present invention, and the present invention is not limited only to above-described embodiment, as long as meeting
The present invention claims all belong to the scope of protection of the present invention.
Claims (5)
1. a kind of catalytic reaction device administered for river sewage, it is characterised in that including insulating support, be placed in insulation branch
Special a whole set of electrode in frame；The special a whole set of electrode includes coating of metal oxides positive electrode, metal negative electrode, metal
Plate, coating of metal oxides positive electrode are arranged with metal negative electrode transpostion interval, and metallic plate is between negative electrode and positive electrode
Every interior, but not with metal negative electrode, positive electrode contact；The arrangement insulation net on each face of insulating support, for encapsulating negative electrode
And positive electrode；Coating of metal oxides positive electrode is connected by positive electrode binding post with the anode of external power, and metal negative electrode is logical
Cathode terminal is crossed with the cathode of external power to be connected；It is equipped in the outside of the insulation net of the side of insulating support and bottom latent
Water pump；In the bottom of insulating support installation insulation tripod, for supporting whole device, it is characterised in that the metal oxide
Coated electrode is doped tin oxide coatings positive electrode.
2. a kind of catalytic reaction device administered for river sewage as described in claim 1, it is characterised in that metal oxygen
The oxygen evolution potential of compound coating positive electrode is higher than 1.5V (reference mark hydrogen electrode).
3. a kind of catalytic reaction device administered for river sewage as claimed in claim 2, it is characterised in that metal oxygen
The oxygen evolution potential of compound coating positive electrode is higher than 2.5V (reference mark hydrogen electrode).
4. a kind of catalytic reaction device administered for river sewage as described in claim 1, it is characterised in that positive electrode
Spacing with adjacent negative electrode is 2-5mm.
5. a kind of catalytic reaction device administered for river sewage as described in claim 1, it is characterised in that described
Metallic plate is aluminium sheet or iron plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564077.XA CN108467101A (en) | 2018-06-04 | 2018-06-04 | A kind of catalytic reaction device administered for river sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564077.XA CN108467101A (en) | 2018-06-04 | 2018-06-04 | A kind of catalytic reaction device administered for river sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108467101A true CN108467101A (en) | 2018-08-31 |
Family
ID=63260693
Family Applications (1)
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|---|---|---|---|
| CN201810564077.XA Pending CN108467101A (en) | 2018-06-04 | 2018-06-04 | A kind of catalytic reaction device administered for river sewage |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513408A (en) * | 2018-12-29 | 2019-03-26 | 宜兴市恩创环保有限公司 | A kind of hollow edged electrode reactor and the system with its processing lavatory recycle-water |
| CN109809532A (en) * | 2019-03-13 | 2019-05-28 | 杭州睿清环保科技有限公司 | A kind of sewage treatment electrochemical reactor of super low-power consumption |
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