CN201817307U - Integral nitrogen and phosphorus removal electrolysis unit - Google Patents

Integral nitrogen and phosphorus removal electrolysis unit Download PDF

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Publication number
CN201817307U
CN201817307U CN2010205409252U CN201020540925U CN201817307U CN 201817307 U CN201817307 U CN 201817307U CN 2010205409252 U CN2010205409252 U CN 2010205409252U CN 201020540925 U CN201020540925 U CN 201020540925U CN 201817307 U CN201817307 U CN 201817307U
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China
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electrolyzer
electrode
value
conductivity
nitrogen
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Expired - Fee Related
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CN2010205409252U
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Chinese (zh)
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尚晓
杨宇栋
高建文
王欣泽
孔海南
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

The utility model relates to an integral nitrogen and phosphorus removal electrolysis unit belonging to the technical field of sewage treatment. The integral nitrogen and phosphorus removal electrolysis unit comprises an electrolytic cell, a pH value electrode switching power supply, an aerated conduit, a conductivity medicine feeding box, a conductivity electrode probe, a medicine feeding control panel, a pH value electrode probe, a net-shaped metal alloy electrode pair, a bracket and an air compressor. In the utility model, electrode materials and pH value operation conditions required in two reaction processes are integrated, and an electrolysis nitrogen removal process and an electrolysis phosphorus removal process can be efficiently finished in the same electrolytic cell by intermittently exchanging electrode polarities and additionally arranging an aeration device. In the reaction process, the reaction can be efficiently carried out without adding an acidifying or alkalizing agent; and the aerated conduit which is additionally arranged in the process strengthens nitrogen and phosphorus removal rate, and the reaction power consumption is effectively lowered.

Description

The integration denitrification and dephosphorization electrolyzer
Technical field
The utility model relates to a kind of device of technical field of sewage, specifically is a kind of integration denitrification and dephosphorization electrolyzer of removing sewage nitrogen and phosphorus pollution material that is used for strengthening.
Background technology
In recent years, most rivers of China and the outburst of lake blue algae wawter bloom phenomenon are frequent, have caused great effect to people's lives.And in the sewage nutritive salt to exceed standard be the major cause that causes the rivers,lakes and seas eutrophication problem.The existing urban wastewater treatment firm of China adopts traditional biological process denitrification dephosphorization technique, treatment effect instability for nitrogen and phosphorous nutrient, operational conditions is wayward, and water outlet TN and TP are difficult to reach simultaneously China's " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) middle one-level A even one-level B standard.Raising along with China requires for sewage disposal seems particularly important by the nitrogen and phosphorus pollutants that increases in the physico-chemical processes reinforcement removal sewage.Electrolytic process is a kind of sewage water treatment method efficiently, because that it has is simple to operate, and comprehensive electric flocculation, precipitation and the multiple synergistic effect of air supporting, characteristics such as speed of response is fast, and treatment effect is good enjoy various countries scholar concern in recent years.
Find from the retrieval of prior art document, owing to exist pH value, reaction times, electrode materials and Polarity Control, the mechanism of action etc. different in two processes of electrolysis nitrogen and electrolysis dephosphorization, therefore at present not with the integral process and the equipment of denitrogenation and two kinds of technology integral body of dephosphorization.But during two kinds of technology isolated operations of electrolysis nitrogen and electrolysis dephosphorization, not only increased the floor space of electrolyzer, the usage quantity of electrode materials, and the pH scope that also needs continuously the interpolation acid-base modifier to keep each autoreaction to adapt in the electrolytic process, above shortcoming has caused the rare engineering of current electrolysis dephosphorization to use, and the situation that the electrolysis nitrogen technical face is faced danger or disaster and promoted with engineering.
The utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, and a kind of integration denitrification and dephosphorization electrolyzer is provided.The utility model is integrated required electrode materials and pH value operational conditions in two reaction process, by intermittently changing polarity of electrode and setting up aerating apparatus, realization electrolysis nitrogen and electrolysis dephosphorization process are efficiently finished in same electrolyzer, have to take up an area of the advantage little, that cost is low, processing efficiency is high.
The utility model is achieved through the following technical solutions:
The utility model comprises: electrolyzer, pH value electrode exchange power supply, aeration tube, the specific conductivity dosing tank, the conductivity electrode probe, the dosing control panel, pH value electrode probe, the net metal alloy electrode is right, support and air compressor, wherein: support is fixed in the electrolyzer, the net metal alloy electrode is to being arranged on the support, the net metal electrode pair links to each other with the device external power, aeration tube is arranged on the bottom of electrolyzer, air compressor links to each other with aeration tube, pH value electrode exchange power supply is arranged on the outside of electrolyzer, pH value electrode exchange power supply links to each other with pH value electrode probe, pH value electrode probe is arranged on the inside of electrolyzer, the specific conductivity dosing tank is arranged on the inside of electrolyzer, the dosing control panel is arranged on the outer wall of electrolyzer, the dosing control panel links to each other with the conductivity electrode probe with the specific conductivity dosing tank respectively, and the conductivity electrode probe is arranged on the inside of electrolyzer.
Described electrolyzer is provided with water inlet and water outlet.
The cross section of described electrolyzer is for falling trapezoidal shape, and the scope at terraced angle is 30 °~45 °.
The electrode pair of described net metal alloy electrode to forming by the precious metal alloys electrode and the ferroelectric utmost point, precious metal alloys electrode and ferroelectric interpolar spacing range are: 1.0cm~1.5cm, this electrode pair have longer work-ing life and for anode chlorine required energy consumption take place littler.
Described aeration tube is the U type, and it is provided with the micropore that some diameter ranges are 1.5mm~2.5mm, by these micropores solution is carried out aeration, and this aeration tube has increased the disturbance of solution, has reduced the generation of electrode passivation phenomenon, and makes Fe 2+Change into Fe 3+Strengthened the removal efficient of phosphate radical, promoted the ammonia-nitrogen desorption effect simultaneously and accelerate nitrogen effusion speed.
Compared with prior art, the beneficial effects of the utility model are: integrated electrode materials and optimal ph range parameter in two electrolytic reactions, realized that electrolysis nitrogen and electrolysis dephosphorization are reflected in the same electrolyzer and finished, need not to add efficiently carrying out that acid-base modifier can keep reacting in the reaction process; The aeration tube of setting up in the process has strengthened removal efficiency of nitrogen and phosphorus, and the reaction power consumption is effectively descended.
Description of drawings
Fig. 1 is the schematic top plan view of embodiment device structure;
Wherein: 1 is pH value electrode exchange power supply, and 2 is circumscripted power line, and 3 is water inlet, and 4 is aeration tube, and 5 is micropore, and 6 is water outlet.
Fig. 2 is the cross sectional representation of embodiment device structure;
Wherein: 7 are the dosing control panel, and 8 is the specific conductivity dosing tank, and 9 are the conductivity electrode probe, and 10 are pH value electrode probe, and 11 is that the net metal alloy electrode is right, and 12 is support.
Embodiment
Below in conjunction with accompanying drawing device of the present utility model is further described: present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2, present embodiment comprises: electrolyzer, pH value electrode exchange power supply 1, aeration tube 4, specific conductivity dosing tank 8, conductivity electrode probe 9, dosing control panel 7, pH value electrode probe 10, the net metal alloy electrode is to 11, support 12 and air compressor, wherein: support 12 is fixed in the electrolyzer, the net metal alloy electrode is arranged on the support 12 11, the net metal alloy electrode links to each other with the device external power by circumscripted power line 2 to 11, aeration tube 4 is arranged on the bottom of electrolyzer, air compressor links to each other with aeration tube 4 by two 90 ° of standard elbows, pH value electrode exchange power supply 1 is arranged on the outside of electrolyzer, pH value electrode exchange power supply 1 links to each other with pH value electrode probe 10, pH value electrode probe 10 is arranged on the inside of electrolyzer, specific conductivity dosing tank 8 is arranged on the inside of electrolyzer, dosing control panel 7 is arranged on the outer wall of electrolyzer, dosing control panel 7 links to each other with conductivity electrode probe 9 with specific conductivity dosing tank 8 respectively, and conductivity electrode probe 9 is arranged on the inside of electrolyzer.
Described electrolyzer is PVC (polyvinyl chloride) electrolyzer.
Described net metal alloy electrode is determined by the sewage quantity of concrete processing 11 quantity.
Described electrolyzer is provided with water inlet 3 and water outlet 6.
The cross section of described electrolyzer is for falling trapezoidal shape, and terraced angle is 40 °.
Described net metal alloy electrode is to 11 electrode pairs of being made up of the precious metal alloys electrode and the ferroelectric utmost point, precious metal alloys electrode and ferroelectric interpolar spacing are 1.25cm, and this electrode pair has longer work-ing life and for anode chlorine required energy consumption takes place littler.
Described precious metal alloys are Ru, or Ir, or Ti.
Described pH value electrode exchange power supply 1 is a DC voltage-stabilizing temperature stream power supply, and this power supply is monitored pH value electrode probe 10 output signals in real time, intermittently changes power positive cathode, and control pH value of solution value scope is between 6 to 10.
Described aeration tube 4 is the U type, and it is provided with the micropore 5 that some diameters are 2mm, carries out aeration by 5 pairs of solution of these micropores, and this aeration tube 4 has increased the disturbance of solution, has reduced the generation of electrode passivation phenomenon, and makes Fe 2+Change into Fe 3+Strengthened the removal efficient of phosphate radical, promoted the ammonia-nitrogen desorption effect simultaneously and accelerate nitrogen effusion speed.
Aeration tube 4 is by the polyvinyl chloride pipe manufacturer in the present embodiment.
Described dosing control panel 7 is according to conductivity electrode probe 9 real-time monitoring output signals, add conductivity adjustment agent (dosing) during greater than 20ms/cm at electrical conductivity of solution, energy make-up solution ionic concn when this dosing control panel 7 makes water inlet specific conductivity deficiency, make the effects of ion speed of response accelerate, required electric current energy consumption reduces, and has guaranteed that chlorine ion concentration is in certain level in the solution.
Described conductivity adjustment agent is a sodium chloride solution.
The working process of present embodiment: in the electrolytic reaction, waste water enters from water-in 3, is discharged by water port 6.Pressurized air enters the micropore 5 of aeration tube 4, and solution remains the aeration state in the reaction process.Initial pH value and specific conductivity in the waste water, to determine the electrolytic process that solution is initial and whether need to add sodium chloride solution, pH value electrode exchange power supply 1 is monitoring pH value electrode probe 10 output signals in real time, intermittently change power positive cathode, control pH value of solution value scope is between 6 to 10, realize the transposing at intermittence of electrolysis nitrogen and electrolysis dephosphorization process, and keep two pH value in reaction to be always optimum range; Dosing control panel 7 is kept electrical conductivity of solution greater than 20ms/cm by add sodium chloride solution in specific conductivity dosing tank 8, makes the effects of ion speed of response accelerate, and required electric current energy consumption reduces, and has guaranteed that chlorine ion concentration is in certain level in the solution.
1) when electrolyzer is in the electrolysis nitrogen process, the precious metal alloys electrode is an anode, ferroelectric very negative electrode, and when the pH value of solution value drops to 6 when following, pH value electrode exchange power supply 1 is exchange electrode positive and negative electrode automatically, makes solution enter electrolysis dephosphorization process;
2) when electrolyzer is in electrolysis dephosphorization process, the precious metal alloys electrode is a negative electrode, ferroelectric very anode, and when the pH value of solution value rose to 10, pH value electrode exchange power supply 1 exchanged the electrode positive and negative electrode once more automatically, made solution enter the electrolysis nitrogen process;
Reaction is carried out and so forth, in reaction process, when electrical conductivity of solution less than 20ms/cm, dosing control panel 7 can Automatic Dosings to increase electrical conductivity of solution and to keep the finite concentration of chlorion.
Behind present embodiment device denitrogenation dephosphorizing, the content of pollutents such as the nitrogen in the waste water, phosphorus and organic carbon all has obvious removal, and sewage treating efficiency obviously improves, and cost is lower, and the waste water after the processing meets Chinese sewage drainage standard.

Claims (5)

1. integration denitrification and dephosphorization electrolyzer, it is characterized in that, comprise: electrolyzer, pH value electrode exchange power supply, aeration tube, the specific conductivity dosing tank, the conductivity electrode probe, the dosing control panel, pH value electrode probe, the net metal alloy electrode is right, support and air compressor, wherein: support is fixed in the electrolyzer, the net metal alloy electrode is to being arranged on the support, the net metal electrode pair links to each other with the device external power, aeration tube is arranged on the bottom of electrolyzer, air compressor links to each other with aeration tube, pH value electrode exchange power supply is arranged on the outside of electrolyzer, pH value electrode exchange power supply links to each other with pH value electrode probe, pH value electrode probe is arranged on the inside of electrolyzer, the specific conductivity dosing tank is arranged on the inside of electrolyzer, the dosing control panel is arranged on the outer wall of electrolyzer, the dosing control panel links to each other with the conductivity electrode probe with the specific conductivity dosing tank respectively, and the conductivity electrode probe is arranged on the inside of electrolyzer.
2. integration denitrification and dephosphorization electrolyzer according to claim 1 is characterized in that described electrolyzer is provided with water inlet and water outlet.
3. integration denitrification and dephosphorization electrolyzer according to claim 1 and 2 is characterized in that, the cross section of described electrolyzer is for falling trapezoidal shape, and the scope at terraced angle is 30 °~45 °.
4. integration denitrification and dephosphorization electrolyzer according to claim 1 is characterized in that, the right interelectrode spacing range of described net metal alloy electrode is: 1.0cm~1.5cm.
5. integration denitrification and dephosphorization electrolyzer according to claim 1 is characterized in that, described aeration tube is the U type, and it is provided with the micropore that some diameter ranges are 1.5mm~2.5mm.
CN2010205409252U 2010-09-26 2010-09-26 Integral nitrogen and phosphorus removal electrolysis unit Expired - Fee Related CN201817307U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358534A (en) * 2012-03-20 2013-10-23 克朗斯股份公司 Method for treating plastic containers with time reduction when synchronizing system components
CN103936106A (en) * 2014-02-27 2014-07-23 中国科学院生态环境研究中心 Electrochemical synchronous nitrogen and phosphorus removal apparatus and municipal sewage treatment method
CN105776684A (en) * 2016-05-16 2016-07-20 黄名钟 Urban sewage treatment and resource recycling method
CN109422442A (en) * 2017-08-30 2019-03-05 杭州渗源环境科技有限公司 Sludge dewatering container and the dewatering for using the container
CN111362372A (en) * 2020-04-16 2020-07-03 王招 Synchronous nitrogen and phosphorus removal system of electrochemistry
CN112850861A (en) * 2021-01-13 2021-05-28 山东中侨启迪环保装备有限公司 Integrated electrolysis device for removing ammonia, nitrogen and phosphorus in sewage
CN112850859A (en) * 2021-01-12 2021-05-28 山东中侨启迪环保装备有限公司 Intelligent self-adjusting electrolytic phosphorus removal device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358534A (en) * 2012-03-20 2013-10-23 克朗斯股份公司 Method for treating plastic containers with time reduction when synchronizing system components
CN103358534B (en) * 2012-03-20 2016-12-28 克朗斯股份公司 The method processing containers of plastic material of the time that shortens during machine part synchronization
CN103936106A (en) * 2014-02-27 2014-07-23 中国科学院生态环境研究中心 Electrochemical synchronous nitrogen and phosphorus removal apparatus and municipal sewage treatment method
CN105776684A (en) * 2016-05-16 2016-07-20 黄名钟 Urban sewage treatment and resource recycling method
CN105776684B (en) * 2016-05-16 2019-01-11 黄名钟 A kind of method that urban wastewater treatment and resource recycling utilize
CN109422442A (en) * 2017-08-30 2019-03-05 杭州渗源环境科技有限公司 Sludge dewatering container and the dewatering for using the container
CN109422442B (en) * 2017-08-30 2023-12-22 杭州渗源环境科技有限公司 Sludge dewatering container and dewatering method using same
CN111362372A (en) * 2020-04-16 2020-07-03 王招 Synchronous nitrogen and phosphorus removal system of electrochemistry
CN112850859A (en) * 2021-01-12 2021-05-28 山东中侨启迪环保装备有限公司 Intelligent self-adjusting electrolytic phosphorus removal device
CN112850861A (en) * 2021-01-13 2021-05-28 山东中侨启迪环保装备有限公司 Integrated electrolysis device for removing ammonia, nitrogen and phosphorus in sewage

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110504

Termination date: 20120926