CN106904696A - A kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system - Google Patents
A kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system Download PDFInfo
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- CN106904696A CN106904696A CN201710288565.8A CN201710288565A CN106904696A CN 106904696 A CN106904696 A CN 106904696A CN 201710288565 A CN201710288565 A CN 201710288565A CN 106904696 A CN106904696 A CN 106904696A
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- China
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- micro
- odorous water
- electrochemical oxidation
- water jet
- repair system
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Classifications
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- 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
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4619—Supplying gas to the electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The present invention provides a kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system, including the inlet channel in micro- salty black and odorous water, driving impeller is provided with inlet channel, inlet channel outlet port is provided with nozzle, bleed pipeline is additionally provided near nozzle mouth position；Trunnion inlet position is relative with nozzle mouth position, and trunnion liquid outlet position is provided with anode and negative electrode, and anode and negative electrode are installed in fixed cylinder, and are electrically connected with dc source；The present invention can eliminate black and odorous water with the pollutant in the micro- salty black and odorous water of Quick Oxidation.
Description
Technical field
The present invention relates to be related to water environment ecological restoration technical field, in particular to the micro- salty black and odorous water jet-flow aeration of one kind
Electrochemical oxidation repair system.
Background technology
Black and odorous water is, due to organic pollutants in water body excessive concentration, to cause water body severe depletion of oxygen, and water ecological setting is disliked
Caused by changing.Current biological renovation method is the common method that black and odorous water is administered, and including aeration oxygen replenishing, ecological floating island etc., is utilized
The metabolism degraded water body organism of microorganism.When but water body severe is black smelly, because the biodegradability of water body is poor, black smelly
Water body treating initial stage, biological prosthetic efficiency is low.
Electrochemical oxidation process refers to produce electrode reaction by applied voltage, and being formed in electrode surface has strong oxidizing property
Material aoxidizes water pollutant, main active oxygen compound (ROS, the reactive oxygen of oxidizing species of generation
Species), active halogen compounds (RHS, reactive halogen species) and other some active groups, such as
S2O8 2-、•SO4 -、•PO4 2-、C2O6 2-Deng, specifically produce which kind of oxidizing species depend on electrode and kind of electrolytes.ROS
There are OH, O3、O2 -Deng RHS has Cl2、ClO-Deng.These strong oxidizing property compounds are in the anode surface organic dirt of further oxidation Decomposition
Dye thing.In electrochemical oxidation process, there is reduction reaction in cathode electrode surface, and dissolved oxygen can be reduced to H2O2, its speed and water
Dissolved oxygen content is relevant in body.
In electrochemical oxidation process, contaminant degradation efficiency is main and pollutant to electrode surface mass transfer rate and by force
The yield of oxidative compound is related.Electrochemical oxidation process is widely studied in fields such as wastewater from chemical industry, percolates, but
Do not applied also in black smelly water harnessing field.In coastal cities, city river salt content is higher, water body salt content 0.7%~
Between 1.1%, water body has certain electrical conductivity, and water body Cl-Content is higher, and this allows that electrochemical oxidation technology is fine
Ground applies to the reparation of micro- salty black and odorous water.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation is repaiied
Complex system, with the pollutant in the micro- salty black and odorous water of Quick Oxidation, eliminates black and odorous water.
The present invention is in order to solve the above technical problems, the technical scheme for being used is：A kind of micro- salty black and odorous water jet-flow aeration
Electrochemical oxidation repair system, including the inlet channel in micro- salty black and odorous water, are provided with driving leaf in the inlet channel
Wheel, the inlet channel outlet port is provided with nozzle, and bleed pipeline is additionally provided near nozzle mouth position；
Trunnion inlet position is relative with nozzle mouth position, and trunnion liquid outlet position is provided with anode and negative electrode, the anode and
Negative electrode is installed in fixed cylinder, and is electrically connected with dc source.
Preferably, the inlet channel entrance location is provided with grid, and the grid is hemispherical.
Preferably, the bleed pipeline is connected by the adapter of flare with trunnion, described to take over along towards trunnion
Direction radius be gradually reduced.
Preferably, the trunnion is connected by the anemostat of flare with fixation cylinder outer end, the anemostat along
Gradually increase towards the direction radius of fixed cylinder.
Preferably, the anode and negative electrode are mesh cylinder shape structure.
Preferably, the fixed cylinder includes the first cylinder and the second cylinder, is set inside the first cylinder inlet side
Have in the first flange of annular, the first flange inner side is provided with the first boss of annular, the second cylinder import
It is provided with inside side in the second flange of annular, the side in the second flange towards the first cylinder is provided with annular
Second boss；The first boss and second boss are used for sandwiched fixed anode and negative electrode.
Preferably, medial surface one end of anode is fitted with first boss outer ring, and the other end is fitted with second boss outer ring；It is cloudy
Lateral surface one end of pole is fitted with first boss inner ring, and the other end is fitted with second boss inner ring.
Preferably, the spacing between the anode and negative electrode is the difference of both cylindrical shape radiuses, and scope is 1 ~ 2cm.
Preferably, the inlet channel is columnar structured and is vertically arranged that the nozzle is flared structure and level
Set, the inlet channel sets with the position that nozzle crosses and drives impeller.
Preferably, the electrode material of the anode and negative electrode is the ruthenium iridium combination electrode of titanium substrate, and material is Ti/
IrO2-RuO2。
Beneficial effects of the present invention：The pressure that the present invention is caused using jet and the depth of water, can effectively improve O2
Saturation solubility in water body, increases Dissolved Oxygen in Water content, so as to effectively improve cathode surface H in electrochemical oxidation process2O2
Yield, improve contaminant degradation efficiency；The electrode of mesh cylinder shape structure possesses larger specific surface area and discharge capacity,
Pollutant is fast to electrode surface mass transfer rate under jet action, accelerates treatment effeciency；And anode surface produce OH, HClO and
ClO-Deng oxidizing species, these oxidizing species can effectively aoxidize organic pollutants in water body and FeS, MnS etc.
Sulfide, reduces water body COD and eliminates black smelly.
Brief description of the drawings
Fig. 1 is a kind of structural representation of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system；
Fig. 2 is to fix the first cylindrical structure schematic diagram of cylinder in Fig. 1；
Fig. 3 is to fix the second cylindrical structure schematic diagram of cylinder in Fig. 1；
Fig. 4 is to fix in cylinder the structural representation installed after anode and negative electrode；
Fig. 5 is the dimensional structure diagram of Fig. 4 Anodics and negative electrode；
In figure, inlet channel 1, grid 1.1, drive impeller 2, nozzle 3, bleed pipeline 4, adapter 4.1, trunnion 5, anemostat 5.1,
Anode 6, negative electrode 7, fixed cylinder 8, the first cylinder 8.1, first flange 8.1.1, first boss 8.1.2, the second cylinder 8.2, the
Two flange 8.2.1, second boss 8.2.2, dc source 9.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system, including located at micro- salty black smelly
Driving impeller 2 is provided with inlet channel 1 in water body, the inlet channel 1, the outlet port of the inlet channel 1 is provided with nozzle
3, it is additionally provided with bleed pipeline 4 near the mouth position of nozzle 3；
The inlet position of trunnion 5 is relative with the mouth position of nozzle 3, and the liquid outlet position of trunnion 5 is provided with anode 6 and negative electrode 7, the sun
Pole 6 and negative electrode 7 are installed in fixed cylinder 8, and are electrically connected with dc source 9.
Preferably, the entrance location of the inlet channel 1 is provided with grid 1.1, and the grid 1.1 is hemispherical.Grid 1.1 1
Aspect can filter out big particle diameter suspended material, so as not to because electrode spacing is too small and caused by electrochemical oxidation system blocking, separately
Outer one side, its hemispheric design causes that the surface area of grid 1.1 is larger, can reduce solution circulating resistance.
Preferably, the bleed pipeline 4 is connected by the adapter 4.1 of flare with trunnion 5, the adapter 4.1 along
It is gradually reduced towards the direction radius of trunnion 5.It is this to be designed to form high-speed gas jet so that air is quickly mixed with solution
Close.
Preferably, the trunnion 5 is connected by the anemostat 5.1 of flare with the fixed outer end of cylinder 8, the anemostat
5.1 gradually increase along the direction radius towards fixed cylinder 8.This design, is the flow velocity mistake in case air-water mixture jet
Greatly, electrode is constituted and is damaged, so jet velocity can suitably be reduced using anemostat 5.1, to reduce it to electrode material
Damage.
Preferably, as shown in figure 5, the anode 6 and negative electrode 7 are mesh cylinder shape structure（Network shape in Fig. 5 is saved
Slightly it is not drawn into）.In the present embodiment, anode 6 is set in the outside of negative electrode 7, during specific implementation, it is also possible to which both exchange, 7 sets of negative electrode
It is located at the outside of anode 6；The electrode of this mesh cylinder shape structure possesses larger specific surface area and discharge capacity, in jet action
Lower pollutant is fast to electrode surface mass transfer rate, accelerates treatment effeciency.
Preferably, as shown in Figures 2 to 4, the fixed cylinder 8 includes the first cylinder 8.1 and the second cylinder 8.2, described the
It is provided with inside the inlet side of one cylinder 8.1 in the first flange 8.1.1 of annular, the first flange 8.1.1 inner sides are provided with and are in
The first boss 8.1.2 of annular, is provided with the second flange 8.2.1 of annular inside the inlet side of the second cylinder 8.2,
Side on the second flange 8.2.1 towards the first cylinder 8.1 is provided with the second boss 8.2.2 of annular；Described first
Boss 8.1.2 and second boss 8.2.2 is used for sandwiched fixed anode 6 and negative electrode 7.The structure of this flange and boss can be very
Sandwiched fixes the anode 6 and negative electrode 7 of cylindrical structure well, and causes installation and the convenient disassembly of anode 6 and negative electrode 7, when
When electrode is inactivated, the system conversion electrode is convenient.
Preferably, as shown in Figures 2 to 4, medial surface one end of anode 6 is fitted with first boss 8.1.2 outer rings, the other end with
Fit second boss 8.2.2 outer rings；Lateral surface one end of negative electrode 7 is fitted with first boss 8.1.2 inner rings, and the other end is convex with second
Platform 8.2.2 inner rings are fitted.In the present embodiment, the cylinder of the external diameter of first boss 8.1.2 and second boss 8.2.2 and anode 6
Shape structure radius are identical, and the columnar structured radius phase of the internal diameter of first boss 8.1.2 and second boss 8.2.2 and negative electrode 7
Together；So anode 6 can be set in the outer ring of first boss 8.1.2 and second boss 8.2.2, and negative electrode 7 to be set in first convex
The inner ring of platform 8.1.2 and second boss 8.2.2, this mounting means is extremely easy, reliable and stable.
Preferably, as shown in Figures 2 to 4, the spacing between the anode 6 and negative electrode 7 is the difference of both cylindrical shape radiuses, model
It is 1 ~ 2cm to enclose.In the present embodiment, anode 6 is connected dc source with negative electrode 7, after constant current operation, in preferred scheme, and electricity
Current density is preferably 20mA/cm2。
Preferably, the inlet channel 1 is columnar structured and is vertically arranged that the nozzle 3 is flared structure and water
Flat to set, the inlet channel 1 sets with the position that nozzle 3 crosses and drives impeller 2.Nozzle 3 contributes to molten for flared structure
Liquid sprays at a high speed.
Preferably, the electrode material of the anode 6 and negative electrode 7 is the ruthenium iridium combination electrode of titanium substrate, and material is Ti/
IrO2-RuO2.This Ti/IrO2-RuO2Electrode has the advantages that low production cost, stability be high, long service life, although its
Oxygen evolution potential is relatively low, it may occur that analysis oxygen side reaction, but the O that oxygen evolution reaction is produced2, can be dissolved in water body, further increase
Add water body dissolved oxygen concentration.
The present embodiment operation principle is as follows：
First, by device of the invention in micro- salty black and odorous water, wherein inlet channel 1 is vertically arranged, and drives impeller 2 to work
When, micro- salty black smelly water is pumped into inlet channel 1 by grid 1.1, then projected at a high speed by nozzle 3, compressed air is from bleed
Pipeline 4 enters in adapter 4.1, and with micro- salty black smelly water together into being vigorously mixed in trunnion 5, subsequently into anemostat 5.1
In, its kinetic head is converted into pressure head, under condition of high voltage, O2The saturation solubility increase in water body, micro air bubble is further pressed
Contracting, O2It is rapid to dissolve in water；
In the fluidic channel that the aqueous solution jet of high-solubility oxygen concentration is entered into fixed cylinder 8, and connect with anode 6, negative electrode 7
Touch, being produced in the electrode surface of anode 6 can produce active oxy group, such as OH, and reaction equation is as follows：
H2O→ H+ + •OH + e
OH has extremely strong electronic capability, oxidizing potential 2.8V；
Negative electrode 7 electrode surface in addition to it there is evolving hydrogen reaction, dissolved oxygen also occurs that reduction reaction, produces H2O2, reaction equation
It is as follows：
O2 + H2O + H+ + 2e→ H2O2+ OH-
H2O2Yield and the concentration of dissolved oxygen be proportionate, when entering anemostat 5.1 due to air-water mixture, kinetic head turns
Pressure head is turned to, pressure is larger, it can be seen from Henry's law, O2Saturation solubility in water body increases, dissolved oxygen concentration increase,
Therefore the H that the electrode reduction of negative electrode 7 is produced2O2Amount is dramatically increased；
Under the conditions of brackish water, certain density chlorion is contained in water body, the electrode surface of anode 6 occurs analysis chlorine reaction, Cl2
Reacted with water, generate HClO and ClO-；
Therefore whole electrochemical reaction process generates OH, H2O2, HClO and ClO-Etc. strong oxidizing property group, they can be aoxidized
Organic pollutants in water body and FeS, MnS sulfides, are effectively reduced water body COD, improve water body biodegradability and eliminate black
It is smelly.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this Shen
Please in embodiment and the feature in embodiment in the case where not conflicting, can mutually be combined.Protection model of the invention
Enclose the equivalent side of technical characteristic in the technical scheme that should be recorded with claim, including the technical scheme of claim record
Case is protection domain.Equivalent i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system, including the water inlet in micro- salty black and odorous water
Pipeline（1）, it is characterised in that：The inlet channel（1）Inside it is provided with driving impeller（2）, the inlet channel（1）Outlet port sets
There is nozzle（3）, near nozzle（3）Mouth position is additionally provided with bleed pipeline（4）；
Trunnion（5）Inlet position and nozzle（3）Mouth position is relative, trunnion（5）Liquid outlet position is provided with anode（6）And negative electrode
（7）, the anode（6）And negative electrode（7）It is installed on fixed cylinder（8）It is interior, and and dc source（9）Electrical connection.
2. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 1, its feature exists
In：The inlet channel（1）Entrance location is provided with grid（1.1）, the grid（1.1）It is hemispherical.
3. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 1 and 2, its feature
It is：The bleed pipeline（4）By the adapter of flare（4.1）With trunnion（5）Connection, the adapter（4.1）Along court
To trunnion（5）Direction radius be gradually reduced.
4. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 1 and 2, its feature
It is：The trunnion（5）By the anemostat of flare（5.1）With fixed cylinder（8）Outer end connects, the anemostat
（5.1）Along the fixed cylinder of direction（8）Direction radius gradually increase.
5. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 1 and 2, its feature
It is：The anode（6）And negative electrode（7）It is mesh cylinder shape structure.
6. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 5, its feature exists
In：The fixed cylinder（8）Including the first cylinder（8.1）With the second cylinder（8.2）, first cylinder（8.1）Inlet side
Inside is provided with the first flange of annular（8.1.1）, the first flange（8.1.1）Inner side is provided with the first convex of annular
Platform（8.1.2）, second cylinder（8.2）It is provided with inside inlet side in the second flange of annular（8.2.1）, described second
Flange（8.2.1）The cylinder of upper direction first（8.1）Side be provided with the second boss of annular（8.2.2）；Described first is convex
Platform（8.1.2）And second boss（8.2.2）For sandwiched fixed anode（6）And negative electrode（7）.
7. a kind of micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system according to claim 5 or 6, its feature
It is：Anode（6）Medial surface one end and first boss（8.1.2）Outer ring laminating, the other end and second boss（8.2.2）Outer ring
Laminating；Negative electrode（7）Lateral surface one end and first boss（8.1.2）Inner ring laminating, the other end and second boss（8.2.2）Inner ring
Laminating.
8. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 7, its feature exists
In：The anode（6）With negative electrode（7）Between spacing be the difference of both cylindrical shape radiuses, scope is 1 ~ 2cm.
9. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 1 and 2, its feature
It is：The inlet channel（1）For columnar structured and be vertically arranged, the nozzle（3）It is flared structure and horizontally disposed,
The inlet channel（1）With nozzle（3）The position for crossing sets and drives impeller（2）.
10. the micro- salty black and odorous water jet-flow aeration electrochemical oxidation repair system of one kind according to claim 1 and 2, it is special
Levy and be：The anode（6）And negative electrode（7）Electrode material be the ruthenium iridium combination electrode of titanium substrate, material is Ti/IrO2-
RuO2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288565.8A CN106904696B (en) | 2017-04-27 | 2017-04-27 | Jet aeration electrochemical oxidation repair system for brackish black and odorous water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288565.8A CN106904696B (en) | 2017-04-27 | 2017-04-27 | Jet aeration electrochemical oxidation repair system for brackish black and odorous water body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106904696A true CN106904696A (en) | 2017-06-30 |
| CN106904696B CN106904696B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710288565.8A Active CN106904696B (en) | 2017-04-27 | 2017-04-27 | Jet aeration electrochemical oxidation repair system for brackish black and odorous water body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108128854A (en) * | 2018-01-18 | 2018-06-08 | 昆明理工大学 | Method and device based on corona discharge coupling electrodialysis recycling brackish water |
| CN108178346A (en) * | 2018-01-09 | 2018-06-19 | 宁波大红鹰学院 | A kind of river depth oxygenate apparatus |
| CN113354194A (en) * | 2021-06-04 | 2021-09-07 | 清华大学 | Device for cooperatively treating printing waste gas and waste water and method for treating printing waste gas and waste water |
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| CN113354194A (en) * | 2021-06-04 | 2021-09-07 | 清华大学 | Device for cooperatively treating printing waste gas and waste water and method for treating printing waste gas and waste water |
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| Publication number | Publication date |
|---|---|
| CN106904696B (en) | 2023-03-31 |
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