CN108467101A - A kind of catalytic reaction device administered for river sewage - Google Patents

A kind of catalytic reaction device administered for river sewage Download PDF

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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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CN
China
Prior art keywords
positive electrode
electrode
negative electrode
metal
insulating support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810564077.XA
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Chinese (zh)
Inventor
陈阿青
陈建军
周检
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU GUJIE ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Hangzhou Ruiqing Environmental Protection Technology Co ltd
Original Assignee
HANGZHOU GUJIE ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Hangzhou Ruiqing Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU GUJIE ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd, Hangzhou Ruiqing Environmental Protection Technology Co ltd filed Critical HANGZHOU GUJIE ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Priority to CN201810564077.XA priority Critical patent/CN108467101A/en
Publication of CN108467101A publication Critical patent/CN108467101A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour

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

A kind of catalytic reaction device administered for river sewage
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.
CN201810564077.XA 2018-06-04 2018-06-04 A kind of catalytic reaction device administered for river sewage Pending CN108467101A (en)

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

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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)

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Cited By (2)

* Cited by examiner, † Cited by third party
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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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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