CN207738494U - A kind of electrolysis unit removing ammonia nitrogen in ammonia alkali waste water - Google Patents
A kind of electrolysis unit removing ammonia nitrogen in ammonia alkali waste water Download PDFInfo
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- CN207738494U CN207738494U CN201721395354.6U CN201721395354U CN207738494U CN 207738494 U CN207738494 U CN 207738494U CN 201721395354 U CN201721395354 U CN 201721395354U CN 207738494 U CN207738494 U CN 207738494U
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Abstract
The utility model discloses a kind of electrolysis units of ammonia nitrogen in removal ammonia alkali waste water, including electrolytic cell, anode plate, cathode plate, anode fixing device and cathode fixing device, the at least 3 groups electrode slots being arranged in order are equipped in electrolytic cell, the baffle that the flow direction of electrolyte is limited to S-shaped is equipped between adjacent electrode slot, electrode slot includes anode slot and cathode slot disposed in parallel, anode plate is equipped in anode slot, cathode plate is equipped in cathode slot, cathode plate is connect with cathode fixing device, and anode plate is connect with anode fixing device.The electrolysis unit removes ammonia nitrogen effect stability, not will produce secondary pollution, and treatment effeciency is high, simple in structure, and operation is simple, cost savings, and ammonia nitrogen can be reduced to 10mg/L or less in treated the ammonia nitrogen waste water of the electrolysis unit by the application.
Description
Technical field
The utility model is related to a kind of electrolysis unit, the electrolysis unit of ammonia nitrogen in especially a kind of removal ammonia alkali waste water.
Background technology
Ammonia-soda process generates evaporated waste ammonia liquid and Za Shui during manufacturing soda manufacture, obtains stripping liquid after pretreatment.Stripping
Liquid main component is CaCl2, NaCl and NH3- N etc., water temperature are about 70-75 DEG C, and discharge capacity is about 800-1000m3/ h, ammonia nitrogen contain
Amount is about 40-80mg/L, and NaCl contents are about 55g/L, CaCl2Content is about 120g/L, belongs to typical superelevation salinity, low ammonia
Nitrogen waste water.Ammonia nitrogen is mainly with free ammonia (NH in stripping liquid3) and ammonium ion (NH4 +) form is present in the nitrogen in water.Ammonia nitrogen is
Lead to the principal element of body eutrophication, the algae in water body and microorganism mass propagation can be caused, make the dissolving in water body
Oxygen drastically declines, and leads to fish and other aquatile hypoxia deaths, causes to seriously affect to water quality.In addition, ammonia nitrogen is in water body
Middle to will produce nitrite and nitrate by nitrification, this kind of water of long-term drinking can induce methemoglobinemia；Work as water
In nitrite nitrogen too high levels when, can be combined to form a kind of strong carcinogen with protein --- nitrosamine, to human body
It causes to seriously endanger.Excessive ammonia nitrogen causes the processing and reuse of waste water and seriously affects, and seeks the removal ammonia of economical and efficient
Nitrogen method is of great significance to human lives and production.
Currently, common ammonia nitrogen removal method mainly has bioanalysis, blow-off method, chemical precipitation method, break point chlorination, film point
From method, ion-exchange, oxidizing process etc..Ammonia nitrogen removal novel technique, Microwave-Activated Carbon method and function of mechanical steam recompression
(MVR) method.
Since salt content is high in stripping liquid, evaporated waste ammonia liquid is not suitable for using Biochemical method；Chemical oxidization method can be divided into
Breakpoint chlorination, electrochemical oxidation etc. have the advantages that processing treatment effeciency is high, but partial oxidation agent is at high price and there are chlorine residue
The problem of secondary pollution；The main reason phosphate radical of chemical precipitation method, magnesium ion and ammonium ion reaction generate magnesium ammonium phosphate sediment
Principle realizes the removal of ammonia nitrogen, has the advantages that treatment effeciency height, sediment resourcebility utilize, but the technique has processing not
Thoroughly, calcium ion interference and phosphate radical secondary pollution problems；Physical includes mainly blow-off method, membrane separation process, ion exchange
Although the effects such as method are preferable, complex operation, adsorbent reactivation is frequent, and processing cost is higher, and there are the two of stripping gas
Secondary pollution problem.And NH_3-N treating new technology, technology are not mature enough, process conditions also need further to study.
Utility model content
It, can be effective the purpose of the utility model is to overcome one kind is provided in place of above-mentioned the deficiencies in the prior art based on this
The electrolysis unit of ammonia nitrogen in ammonia alkali waste water is removed, which removes ammonia nitrogen effect stability, not will produce secondary pollution, handles
Efficient, simple in structure, operation is simple, cost savings, ammonia nitrogen in treated the ammonia nitrogen waste water of the electrolysis unit by the application
10mg/L or less can be reduced to.
To achieve the above object, the technical solution that the utility model is taken is：A kind of electricity removing ammonia nitrogen in ammonia alkali waste water
Device, including electrolytic cell, anode plate, cathode plate, anode fixing device and cathode fixing device are solved, is equipped with extremely in the electrolytic cell
Lack 3 groups of electrode slots being arranged in order, is equipped between the adjacent electrode slot and the flow direction of electrolyte is limited to S-shaped
Baffle, the electrode slot includes anode slot and cathode slot disposed in parallel, and anode plate is equipped in the anode slot,
Cathode plate is equipped in the cathode slot, the cathode plate is connect with the cathode fixing device, the anode plate and the sun
Pole fixing device connection.The flow direction of electrolyte is S-shaped as a result, and multi-group electrode can improve the electrolysis of ammonia alkali waste water
Efficiency.
Preferably, the anode fixing device includes anode lifting lug, 2 busbars, 2 busbar seats and busbar holder, described
Busbar is connect with the anode lifting lug, and the busbar seat is equipped with busbar, and the busbar seat is fixedly connected with the busbar holder,
The busbar holder is fixedly connected with the side wall of the electrolytic cell.2 groups of busbars and busbar seat are arranged in parallel and can protect up and down as a result,
It is fixed on busbar holder to card anodic stabilization.
Preferably, insulation board is equipped between the busbar and the busbar seat, among the busbar, busbar seat and insulation board
Equipped with through-hole, the through-hole is equipped with insulation sleeve, is bolted to connection between the busbar and busbar seat, the bolt is worn
Cross the insulation sleeve.Insulation board and insulation sleeve can ensure to insulate between busbar and busbar seat as a result,.
Preferably, the anode fixing device is identical as the structure of the cathode fixing device.It should be noted that anode
Fixing device and the structure of cathode fixing device can be identical, can also be different, as long as anode fixing device is solid with cathode
Determining device can fix anode and cathode in a cell；Preferably, anode fixing device may be used also with cathode fixing device
To ensure to insulate between busbar and busbar seat.
Preferably, 24 groups of electrode slots are equipped in the electrolytic cell.It should be noted that electrode slot quantity can basis
The efficiency needs of electrolysis are adjusted, and can be 3 groups, 4,5 groups, 8 groups, 11 groups, 15 groups, 19 groups, 22 groups etc..
Preferably, the baffle is fixedly connected with the side wall of the electrolytic cell, and the tip height of the adjacent baffle is not
Together, the tip height of the baffle at interval is consistent.Thus, it is possible to increase the flow distance of electrolyte, and then extend electrolysis
Time improves electrolytic efficiency.
Preferably, the electrolysis unit further includes liquid pump, and the inlet of the liquid pump is inserted with the electrode being arranged in order
The electrical communication of slot rear end, the liquid outlet of the liquid pump are set to the front end of the electrode slot being arranged in order.Thus, it is possible to
By partial electrolyte liquid cyclic electrolysis so that ammonia nitrogen concentration is lower in ammonia alkali waste water.
Preferably, the busbar is copper coin.Thus, it is possible to conducting wire internal resistance is reduced, meanwhile, reduce conductor overheating amount.
In conclusion the beneficial effects of the utility model are：
The electrolysis unit of the utility model removes ammonia nitrogen effect stability, not will produce secondary pollution, treatment effeciency is high, structure
Simply, operation is simple, cost savings, and ammonia nitrogen can be reduced in treated the ammonia nitrogen waste water of the electrolysis unit by the application
10mg/L or less.
Description of the drawings
Fig. 1 is the structural schematic diagram for removing the electrolysis unit of ammonia nitrogen in ammonia alkali waste water of the utility model；
Fig. 2 is the sectional view of anode fixing device；
Fig. 3 is the sectional view of cathode fixing device；
Fig. 4 is the vertical view of electrolytic cell；
Wherein, 1, electrolytic cell, 2, baffle, 3, anode slot, 4, cathode slot, 5, anode plate, 6, cathode plate, 7, anode hangs
Ear, 8, cathode lifting lug, 9, busbar holder, 10, busbar, 11, insulation board, 12, busbar seat, 13 through-holes.
Specific implementation mode
To better illustrate the purpose of this utility model, technical solution and advantage, below in conjunction with attached drawing and specific implementation
The utility model is described in further detail for example.
Embodiment 1
As shown in figures 1-4, a kind of electrolysis unit removing ammonia nitrogen in ammonia alkali waste water, including electrolytic cell 1, anode plate 5, the moon
Pole plate 6, anode fixing device and cathode fixing device, electrolytic cell is interior to be equipped with 24 groups of electrode slots being arranged in order, adjacent electricity
The baffle 2 that the flow direction of electrolyte is limited to S-shaped is equipped between the slot of pole, electrode slot includes that anode disposed in parallel is inserted
Slot 3 and cathode slot 4, anode slot 3 is interior to be equipped with anode plate 5, cathode plate 6 is equipped in cathode slot 4, cathode plate 6 is consolidated with cathode
Determine device connection, anode plate 5 is connect with anode fixing device；Anode fixing device is identical as the structure of cathode fixing device；Gear
Plate 2 is fixedly connected with the side wall of electrolytic cell, and the tip height of adjacent baffle 2 is different, the tip height one of the baffle 2 at interval
It causes；
Anode fixing device includes the busbar seat 12 of busbar 10,2 of anode lifting lug 7,2 and busbar holder 9, busbar 10 and sun
Pole lifting lug 7 connects, and busbar seat 12 is equipped with busbar 10, and busbar seat 12 is fixedly connected with busbar holder 9, busbar holder 9 and electrolysis
The side wall of slot is fixedly connected；Busbar is made of copper coin；Insulation board 11, busbar 10, mother are equipped between busbar 10 and busbar seat 12
It arranges and is equipped with through-hole 13 among seat 12 and insulation board 11, through-hole 13 is equipped with insulation sleeve (not shown), busbar 10 and busbar seat
It is fixedly connected by bolt (not shown) between 12, bolt passes through insulation sleeve；
Electrolysis unit further includes liquid pump (not shown), the inlet of liquid pump and the electrode slot rear end that is arranged in order
Electrical communication, the liquid outlet of liquid pump are set to the front end for the electrode slot being arranged in order.
Use above-mentioned electrolysis unit processing ammonia alkali waste water can make in ammonia alkali waste water ammonia nitrogen concentration be reduced to 10mg/L with
Under；Present inventor has found that, when the voltage of electrolysis unit is 6V, and electric current is 4.5KA, electrolysis unit is removed through test of many times
The best results of ammonia nitrogen in ammonia alkali waste water.
The characteristics of there are chlorions in ammonia alkali waste water is utilized in the electrolysis unit of the utility model, and it is useless to solve existing ammonia nitrogen
Water outlet problem of high cost, through the device handle ammonia alkali waste water in ammonia nitrogen be entirely capable of reaching 10mg/l hereinafter, removal ammonia nitrogen
Effect stability, efficient, equipment is simple, easy to operate.
The utility model electrolysis ammonia alkali waste water principle include：Since there are chlorions, electrolysis to remove ammonia nitrogen in ammonia alkali waste water
The reaction of generation removes the reaction process of ammonia nitrogen close to break point chlorination；Chlorion in waste water first occurs anode reaction and generates work
Property chlorine (Cl2, HOCl, ClO- etc.), then, the very strong Active Chlorine of oxidisability is reacted with ammonia nitrogen again, to reach removal ammonia nitrogen
Purpose；
Specifically, the electrolysis principle of the utility model is related to break point chlorination, i.e., chlorine is passed through in ammonia nitrogen waste water, utilizes
Mineralized nitrogen is nitrogen discharge by hypochlorous acid, to remove ammonia nitrogen.In logical chlorine process, the concentration of ammonia nitrogen is with chlorine in water body
Intake increases and reduces, and ammonia nitrogen concentration is reduced to 0 a little referred to as break, the at this time content of the free chloro ion in water body
It is minimum.The corresponding reaction equation of electrolysis principle is as follows：
Cl2+2NaOH→NaCl+NaClO+H2O；
2NH4 ++3HClO→N2+3H2O+3Cl-。
For the electrolysis unit of the utility model using salt bearing liquid wastes as electrolyte, Direct Electrolysis generates chlorine to remove waste liquid
In ammonia nitrogen；Simple for process, easy operation control, ammonia nitrogen removal is efficient, ammonia-nitrogen content≤10mg/l in treated electrolyte.
The voltage that 0-15V may be used in the electrolysis unit of the utility model is adjustable, and electric current can be adjusted between 0-30000A；This practicality is new
Electrolytic cell in type may be used to be made by the ordinary carbon steel of insulation processing；24 groups or more group electricity can be set in electrolytic cell
Pole slot is electrolysed for placing electrode plate；Electrode plate in the utility model can be selected titanium (Ti) plate (i.e. Ni―Ti anode with
Ti cathode).
Finally, it should be noted that above example is only to illustrate the technical solution of the utility model rather than to this reality
With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is common
It will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this reality
With the spirit and scope of new technique scheme.
Claims (8)
1. the electrolysis unit of ammonia nitrogen in a kind of removal ammonia alkali waste water, which is characterized in that including electrolytic cell, anode plate, cathode plate, sun
Pole fixing device and cathode fixing device, the electrolytic cell is interior to be equipped at least 3 groups electrode slots being arranged in order, and adjacent is described
The baffle that the flow direction of electrolyte is limited to S-shaped is equipped between electrode slot, the electrode slot includes disposed in parallel
Anode slot and cathode slot, the anode slot is interior to be equipped with anode plate, and cathode plate, the cathode are equipped in the cathode slot
Plate is connect with the cathode fixing device, and the anode plate is connect with the anode fixing device.
2. electrolysis unit according to claim 1, which is characterized in that the anode fixing device include anode lifting lug, 2
Busbar, 2 busbar seats and busbar holder, the busbar are connect with the anode lifting lug, and the busbar seat is equipped with busbar, described
Busbar seat is fixedly connected with the busbar holder, and the busbar holder is fixedly connected with the side wall of the electrolytic cell.
3. electrolysis unit according to claim 2, which is characterized in that be equipped with insulation between the busbar and the busbar seat
Plate, the busbar, busbar seat and insulation board centre are equipped with through-hole, and the through-hole is equipped with insulation sleeve, the busbar and busbar seat
Between be bolted to connection, the bolt pass through the insulation sleeve.
4. according to any electrolysis unit of claims 1 to 3, which is characterized in that the anode fixing device and described the moon
The structure of pole fixing device is identical.
5. electrolysis unit according to claim 1, which is characterized in that be equipped with 24 groups of electrode slots in the electrolytic cell.
6. electrolysis unit according to claim 1 or 5, which is characterized in that the side wall of the baffle and the electrolytic cell is solid
The tip height of fixed connection, the adjacent baffle is different, and the tip height of the baffle at interval is consistent.
7. electrolysis unit according to claim 1, which is characterized in that the electrolysis unit further includes liquid pump, the liquid pump
Inlet and the electrode slot rear end being arranged in order electrical communication, the liquid outlet of the liquid pump be set to it is described successively
The front end of the electrode slot of arrangement.
8. electrolysis unit according to claim 2 or 3, which is characterized in that the busbar is copper coin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721395354.6U CN207738494U (en) | 2017-10-25 | 2017-10-25 | A kind of electrolysis unit removing ammonia nitrogen in ammonia alkali waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721395354.6U CN207738494U (en) | 2017-10-25 | 2017-10-25 | A kind of electrolysis unit removing ammonia nitrogen in ammonia alkali waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662965A (en) * | 2017-10-25 | 2018-02-06 | 广东南方碱业股份有限公司 | A kind of electrolysis unit and method for removing ammonia nitrogen in ammonia alkali waste water |
| CN110204017A (en) * | 2019-05-16 | 2019-09-06 | 浙江浙能技术研究院有限公司 | A kind of electrolytic treatment system and method adjusting ammonia-containing water pH value |
-
2017
- 2017-10-25 CN CN201721395354.6U patent/CN207738494U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662965A (en) * | 2017-10-25 | 2018-02-06 | 广东南方碱业股份有限公司 | A kind of electrolysis unit and method for removing ammonia nitrogen in ammonia alkali waste water |
| CN107662965B (en) * | 2017-10-25 | 2024-01-12 | 广东南方碱业股份有限公司 | Electrolysis device and method for removing ammonia nitrogen in ammonia-alkali wastewater |
| CN110204017A (en) * | 2019-05-16 | 2019-09-06 | 浙江浙能技术研究院有限公司 | A kind of electrolytic treatment system and method adjusting ammonia-containing water pH value |
| CN110204017B (en) * | 2019-05-16 | 2023-08-22 | 浙江浙能技术研究院有限公司 | Electrolytic treatment system and method for adjusting pH value of ammonia-containing wastewater |
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