CN103420457A - Device for removing ammonia nitrogen by three-dimensional electrode and application thereof - Google Patents
Device for removing ammonia nitrogen by three-dimensional electrode and application thereof Download PDFInfo
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- CN103420457A CN103420457A CN2013101802166A CN201310180216A CN103420457A CN 103420457 A CN103420457 A CN 103420457A CN 2013101802166 A CN2013101802166 A CN 2013101802166A CN 201310180216 A CN201310180216 A CN 201310180216A CN 103420457 A CN103420457 A CN 103420457A
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Abstract
A device for removing ammonia nitrogen by a three-dimensional electrode comprises an electrolytic bath, a peristaltic pump, a water collection tank, a direct-current power supply, a first pipeline, a second pipeline and a third pipeline, wherein the electrolytic bath is provided with the three-dimensional electrode, and is used for treating waste water; the peristaltic pump is used for delivering the waste water into the electrolytic bath; the water collection tank is used for collecting the treated waste water; the direct-current power supply is used for supplying power to the electrolytic bath; the first pipeline is used for connecting the waste water with the peristaltic pump; the second pipeline is used for connecting the peristaltic pump with the electrolytic bath; the third pipeline is used for connecting the electrolytic bath with the water collection tank; the tops of the cathode and the anode of the three-dimensional electrode are connected with the direct-current power supply.
Description
Technical field
The present invention relates to a kind of three-diemsnional electrode except the device of ammonia nitrogen, be specifically related to a kind of electrochemical oxidation and zeolite adsorption-ion-exchange synergy utilized and remove the device of ammonia nitrogen in water body and the application of ammonia nitrogen concentration in processing trade effluent and reduce natural water in fishery cultivating.
Background technology
Ammonia nitrogen has become one of principal pollutant matter in industry, life and agricultural effluent at present.Ammonia nitrogen in waste water can consume the dissolved oxygen in water body in by the microbiological oxidation process, and generally speaking, in water body, ammonia nitrogen can oxidation generate nitrate under the nitrobacteria effect, and 1g ammonia nitrogen complete oxidation is that nitrate need to consume 4.6g oxygen.The ammonia nitrogen of high density is to the toxic effect of the hydrobionts such as fish in water body.Research shows, in the fishery cultivating process, ammonia nitrogen can cause fish reduction, decreased growth, tissue injury and reduce the transport capacity of oxygen in tissue.When ammonia-nitrogen content is too high, can cause fish to be poisoned to death.Therefore, reduce ammonia nitrogen concentration in natural water and be conducive to protect fish production, the conservation of nature ecotope.In addition, ammonia nitrogen is as a kind of nitrogenous source, and its discharge likely causes the amount reproduction of algae in natural water, and biological population quantity changes, and destroys the eubiosis of water body, causes body eutrophication.Therefore, the ammonia nitrogen concentration of controlling in water body is very necessary.Reduce the oxygen requirement that ammonia nitrogen concentration can effectively reduce sewage, reduce the infringement of eutrophication to some sensitive water body (as the Dian Chi, Yunnan).
The method that tradition is removed ammonia nitrogen mainly contains biological nitration/denitrification, chemical precipitation, stripping, absorption, breakpoint chlorination etc.Nitrated/denitrification is as a kind of microbial treatment method, and the impact that is subject to the environmental factorss such as temperature, pH is larger, goes out water concentration winter and is difficult to be guaranteed; Chemical precipitation need to be added chemical substance, and forms chemical sludge, easily causes secondary pollution; Blow-off method is mainly for the waste water of high-concentration ammonia-nitrogen, and need under alkaline condition, carry out; Absorption method is not really removed ammonia nitrogen, and the adsorbent reactivation difficulty.Therefore, each method all has serious weak point in actual application, and the method for developing new fast deep processing ammonia nitrogen waste water is imperative.
Ion exchange method is due to the impact that is not subject to temperature, operates relatively simply, and the advantages such as economical operation receive people's concern.Zeolite has very strong selective ion exchange ability to ammonia nitrogen, facts have proved, the ammonia nitrogen that uses zeolite to remove in waste water can be obtained good effect.But zeolite is limited to the exchange capacity of ammonia nitrogen, when the water outlet ammonia nitrogen concentration is greater than limit value, just need to change zeolite, make actual mechanical process loaded down with trivial details.
In recent years, electrochemical oxidation technology has become a study hotspot as a kind of high-level oxidation technology, this technology is carried out at normal temperatures and pressures, have capacity usage ratio high, do not need to add medicament, safety, the advantage such as easy and simple to handle, be considered to one of technology of most possible industrialization.Than two-dimensional electrode, three-diemsnional electrode can increase the specific surface area of electrolyzer, increases the mass transfer ability, improves current efficiency and processing power, can under different current densities, be operated, and easily be automated and operate continuously.
Summary of the invention
The invention provides the device of a kind of three-diemsnional electrode except ammonia nitrogen, it has utilized zeolite effectively to remove ammonia nitrogen to strong selectivity ion-exchange and the adsorption of ammonia nitrogen in waste water, and utilize electrochemical oxidation process remove in waste water and be adsorbed on the ammonia nitrogen on zeolite by electrolysis, make the water outlet ammonia nitrogen concentration remain on a very low level always.This method has not only retained the advantage of ion exchange method, has also avoided changing zeolite in the process of removing ammonia nitrogen, the effect of have continuously, efficient, level of automation is high.
In order to achieve the above object, the present invention has adopted following technical scheme:
A kind of water treatment device of removing ammonia nitrogen in waste water, have such feature, comprises:
Electrolyzer, contain three-diemsnional electrode, for the treatment of waste water; Peristaltic pump, for to the electrolyzer transport wastewater; Header tank, for the waste water of collection and treatment; Direct supply, for giving electrolyzer with electricity; The first pipeline, for connecting waste water and peristaltic pump; Second pipe, for connecting peristaltic pump and electrolyzer; And the 3rd pipeline, for connecting electrolyzer and header tank, wherein, the negative electrode of three-diemsnional electrode is connected with direct supply with the top of anode.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, the cubic capacity of electrolyzer is 1 liter, and useful volume is 350 milliliters.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, anode is Ti/RuO
2, negative electrode is stainless steel plate, the granule electrode of three-diemsnional electrode is using natural clinoptilolite.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, the particle diameter of using natural clinoptilolite is the 2-5 millimeter, and packing height is 200 millimeters.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, the size of two pole plates of electrolyzer is 172 millimeters * 38 millimeters * 1 millimeter, and spacing is 10 millimeters.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, the electric current that direct supply provides is the 0-2 peace, and voltage is the 0-15 volt.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, direct supply is provided with the electric current display screen.
Further, according to water treatment device of the present invention, can also there is such feature:
Wherein, peristaltic pump is provided with the rotating speed display screen.
In addition, according to water treatment device of the present invention, can also there is such feature:
Wherein, also be connected with the sampling line in parallel with the 3rd pipeline on electrolyzer, sampling line has the first valve, and the 3rd pipeline has the second valve.
Effect and the effect of invention
Remove the ammonia nitrogen device according to the three-diemsnional electrode the present invention relates to, it has utilized zeolite effectively to remove ammonia nitrogen to strong selectivity ion-exchange and the adsorption of ammonia nitrogen in waste water, and utilize the neutralization of electrochemical oxidation removal waste water to be adsorbed on the ammonia nitrogen on zeolite by electrolysis, thereby make zeolite all the time in the absorption undersaturated condition, can remove continuously and healthily ammonia nitrogen; On the other hand, zeolite can form micro cell under electric field action, effectively increases the probability that redox reaction occurs, and improves current efficiency and ammonia nitrogen removal ability, therefore the final outflow water ammonia nitrogen concentration remains on a very low level always.The dual synergy of this absorption-ion-exchange and electrochemical oxidation, not only retained the advantage of ion exchange method, also avoided changing zeolite in the process of removing ammonia nitrogen.Present method is affected by temperature and pH while using less, the effect of have continuously, efficient, level of automation is high, and can be widely used in the fields such as sewage work and fishery.
The accompanying drawing explanation
Fig. 1 is the structural representation of three-diemsnional electrode of the present invention except the ammonia nitrogen device.
Embodiment
Following examples are elaborated the present invention by reference to the accompanying drawings.
In following examples, ammonia nitrogen waste water used is by analytical pure (NH
4)
2SO
4, NaCl and Na
2SO
4Configure and obtain, the pH value is by H
2SO
4Perhaps NaOH regulates, and all reagent is buied by traditional Chinese medicines group.
Embodiment mono-
The three-diemsnional electrode that Fig. 1 is the present embodiment is except the structural representation of ammonia nitrogen device.
Three-diemsnional electrode in the present embodiment, except the device of ammonia nitrogen, as shown in Figure 1, comprises: electrolyzer 2, for the treatment of waste water; Peristaltic pump 3, for to the electrolyzer transport wastewater; Header tank 5, for the waste water of collection and treatment; Direct supply 1, for giving electrolyzer 2 power supplies; And waste water tank 4, for storing the waste water containing ammonia nitrogen.Wherein, in electrolyzer 2, the top of the negative electrode of three-diemsnional electrode and anode is connected with direct supply, and anode is Ti/RuO
2, negative electrode is stainless steel plate, and the granule electrode of three-diemsnional electrode is using natural clinoptilolite 6, and the particle diameter of using natural clinoptilolite 6 is 2-5mm, and it is filled in electrolyzer 2, and packing height is 200mm.Direct supply 1 is connected by copper conductor with electrolyzer 2, and waste water tank 4, peristaltic pump 3, electrolyzer 2 are connected by teflon hose successively.Electrolyzer 2 also is connected to header tank by teflon hose, also has the sampling line 7 of same material on this pipeline, and sampling line 7 is provided with the first valve, and the pipeline between sampling line and header tank is provided with the second valve.
In the present embodiment, the cubic capacity of electrolyzer 2 is 1L, and useful volume is 350mL.Two pole plate sizes of electrolyzer 2 are 172mm * 38mm * 1mm, and spacing is 10mm.Direct supply is provided with the electric current display screen, and its electric current provided is 0-2A, and voltage is 0-15V.Peristaltic pump 3 is provided with the rotating speed display screen.
While in system, having chlorion, electrochemical oxidation process is removed the cardinal principle of ammonia nitrogen for utilizing the reactive chlorine indirect oxidation, and in ie in solution, chlorion is oxidized to Cl
2, Cl
2Extremely strong HClO, the ClO of water-soluble generation oxidisability again
-Thereby, by the ammonia nitrogen oxidation removal in waste water.Principal reaction mechanism is suc as formula shown in (1)-(5):
Anode: 2Cl
-→ Cl
2+ 2e
-(1)
In solution: Cl
2+ H
2O → HClO+H
++ Cl
-(2)
HClO+(2/3)NH
3→(1/3)N
2+H
2O+H
++Cl
- (3)
HClO+(2/3)NH
4 +→(1/3)N
2+H
2O+(5/3)H
++Cl
- (4)
HClO+(1/4)NH
4 +→(1/4)NO
3 -+(1/4)H
2O+(3/2)H
++Cl
- (5)
Granule electrode using zeolite in three-diemsnional electrode is mainly to utilize absorption-ion-exchange and electrochemical oxidation process jointly to remove ammonia nitrogen.HClO, ClO
-In can oxidation removal solution and the ammonia nitrogen adsorbed in zeolite, thereby make saturated zeolite regeneration recover the ability of absorption ammonia nitrogen or make zeolite always in undersaturated condition, so ammonia nitrogen can access continuously and effectively remove.In addition, the zeolite be filled in electrolyzer separates anode and cathode, can avoid the HClO, the ClO that produce at anode
-Move to negative electrode and be reduced, shown in (6)-(7):
HClO+H
++2e
-→Cl
-+H
2O (6)
ClO
-+2H
++2e-→Cl
-+H
2O (7)
On the other hand, zeolite, can be with negative charge near an end of anode under the effect of electric field, an end near negative electrode can form micro cell with positive charge, thus the utilising efficiency of electric current while improving electrolysis, accelerate the removal speed of ammonia nitrogen, reduce the concentration of ammonia nitrogen in water outlet.
When the three-diemsnional electrode of employing the present embodiment removes the device of ammonia nitrogen, as shown in Figure 1, at first open peristaltic pump, waste water is sent into to described electrolyzer by waste water tank, make waste water keep certain hydraulic detention time in electrolyzer; After waste water enters electrolyzer, the ammonia nitrogen in the zeolite meeting efficient absorption waste water in three-diemsnional electrode; Open direct supply after zeolite is saturated, keeps certain current density, the chlorion in the anode place electrolysis water body in three-diemsnional electrode, thereby the ammonia nitrogen in oxidation removal waste water and granule electrode, the waste water that obtains processing and regeneration zeolite; The waste water of processing is collected in header tank by flexible pipe.
The effect of embodiment mono-and effect
The three-diemsnional electrode related to according to the present embodiment is except the ammonia nitrogen device, and it has utilized strong selectivity ion-exchange and the adsorption of zeolite to ammonia nitrogen in waste water, and when the waste water that contains ammonia nitrogen passes through electrolyzer, ammonia nitrogen is wherein effectively removed by zeolite; , there is Cl in the recycling electrochemical oxidation process in solution
-The time, can electrolysis produce Cl at the anode electrolytic cell place
2, Cl
2The HClO of water-soluble further generation strong oxidizing property and ClO
-, both can oxidation removal solution neutralization be adsorbed on the ammonia nitrogen on zeolite, thereby zeolite can instant regeneration, makes it all the time, in the absorption undersaturated condition, can to remove continuously and healthily ammonia nitrogen; On the other hand, zeolite is under electric field action, an end near anode can be with negative charge, an end near negative electrode can be with positive charge, form micro cell, thereby effectively increase the probability that redox reaction occurs, improve current efficiency and ammonia nitrogen removal ability, so the water outlet ammonia nitrogen concentration remains on a very low level always.The dual synergy of this absorption-ion-exchange and electrochemical oxidation, the advantage that has not only retained ion exchange method, also avoided changing zeolite in the process of removing ammonia nitrogen, present method is affected by temperature and pH while using less, the effect of have continuously, efficient, level of automation is high, and can be widely used in the fields such as sewage work and fishery.
Embodiment bis-
Prepare waste water that a certain amount of ammonia nitrogen and chlorine ion concentration be respectively 24.0mg N/L, 300mg/L and pack in waste water tank 4, utilize the NaOH solution of 1mol/L and the H of 0.5mol/L
2SO
4It is 7 that solution is regulated water sample pH, utilizes Na
2SO
4Regulate specific conductivity to 1500 μ S/cm.
A kind of method of utilizing three-diemsnional electrode to remove to anhydrate middle ammonia nitrogen comprises the following steps:
As shown in Figure 1, connect device;
Open peristaltic pump, waste water is sent into to described electrolyzer, controlling the peristaltic pump rotating speed is 5rpm, and now the hydraulic detention time of waste water in electrolyzer is 31min;
Pass into the abundant waste water containing ammonia nitrogen at energising forward direction electrolyzer, until the water outlet ammonia nitrogen concentration is consistent with water inlet, make the electrolyzer mesolite state that reaches capacity, this step can, in order to test the instant regenerative power of zeolite in follow-up measurement, can be ignored in practical application;
After zeolite is saturated, open direct supply, controlling its outward current is 1.8A, now the current density between two-plate is 13.8mA/cm
2.Waste water containing ammonia nitrogen is carried out to electrolysis, the waste water that obtains the regenerated particle electrode and processed;
Close the first valve, open the second valve, adopt the waste water of header tank collection and treatment;
At interval of the regular hour, close the second valve, open the first valve, from the sampling line sampling, the ammonia nitrogen concentration of sample is measured.
The effect of embodiment bis-and effect
The three-diemsnional electrode related to according to the present embodiment is except the device of ammonia nitrogen, adopt national standard analytical procedure " nessler reagent spectrophotometry " to be analyzed the ammonia nitrogen concentration in the electrolysis treatment water outlet, after result shows electrolysis 1h, ammonia nitrogen is from be down to<0.025mg of 24.0mg N/L N/L, and zeolite saturated in electrolyzer is able to holomorphosis.At Faradaic current, be 1.8A, chlorine ion concentration is 300mg/L, when hydraulic detention time is 31min, processes water outlet and reaches national town sewage one-level A emission standard (GB18918-2002).
Embodiment tri-
Prepare waste water that a certain amount of ammonia nitrogen and chlorine ion concentration be respectively 25.0mg N/L, 300mg/L and pack in waste water tank 4, utilizing the H2SO4 solution of the NaOH solution of 1mol/L and 0.5mol/L to regulate water sample pH is 7, utilizes Na
2SO
4Regulate specific conductivity to 1500 μ S/cm;
A kind of three-diemsnional electrode go out to anhydrate method of middle ammonia nitrogen of utilizing comprises the following steps:
As shown in Figure 1, connect device;
Open peristaltic pump, waste water is sent into to described electrolyzer, controlling the peristaltic pump rotating speed is 9rpm, and now the hydraulic detention time of waste water in electrolyzer is 16min;
Pass into the abundant waste water containing ammonia nitrogen at energising forward direction electrolyzer, until the water outlet ammonia nitrogen concentration is consistent with water inlet, make the electrolyzer mesolite state that reaches capacity, this step can, in order to test the instant regenerative power of zeolite in follow-up measurement, can be ignored in practical application;
After zeolite is saturated, open direct supply, controlling its outward current is 1.8A, now the current density between two-plate is 13.8mA/cm
2.Waste water containing ammonia nitrogen is carried out to electrolysis, the waste water that obtains the regenerated particle electrode and processed;
Close the first valve, open the second valve, adopt the waste water of header tank collection and treatment;
At interval of the regular hour, close the second valve, open the first valve, from the sampling line sampling, the ammonia nitrogen concentration of sample is measured.
The effect of embodiment tri-and effect
The three-diemsnional electrode related to according to the present embodiment is except the device of ammonia nitrogen, adopt national standard analytical procedure " nessler reagent spectrophotometry " to be analyzed the ammonia nitrogen concentration in the electrolysis treatment water outlet, after result shows electrolysis 22h, ammonia nitrogen is down to 0.88mg N/L from 25.0mg N/L, and zeolite saturated in electrolyzer is able to holomorphosis.At Faradaic current, be 1.8A, chlorine ion concentration is 300mg/L, when hydraulic detention time is 16min, processes water outlet and reaches national town sewage one-level A emission standard (GB18918-2002).
Embodiment tetra-
Prepare waste water that a certain amount of ammonia nitrogen and chlorine ion concentration be respectively 24.0mg N/L, 300mg/L and pack in waste water tank 4, utilize the NaOH solution of 1mol/L and the H of 0.5mol/L
2SO
4It is 7 that solution is regulated water sample pH, utilizes Na
2SO
4Regulate specific conductivity to 1500 μ S/cm;
A kind of three-diemsnional electrode go out to anhydrate method of middle ammonia nitrogen of utilizing comprises the following steps:
As shown in Figure 1, connect device;
Open peristaltic pump, waste water is sent into to described electrolyzer, controlling the peristaltic pump rotating speed is 14rpm, and now the hydraulic detention time of waste water in electrolyzer is 10min;
Pass into the abundant waste water containing ammonia nitrogen at energising forward direction electrolyzer, until the water outlet ammonia nitrogen concentration is consistent with water inlet, make the electrolyzer mesolite state that reaches capacity, this step can, in order to test the instant regenerative power of zeolite in follow-up measurement, can be ignored in practical application;
After zeolite is saturated, open direct supply, controlling its outward current is 1.8A, now the current density between two-plate is 13.8mA/cm
2.Waste water containing ammonia nitrogen is carried out to electrolysis, the waste water that obtains the regenerated particle electrode and processed;
Close the first valve, open the second valve, adopt the waste water of header tank collection and treatment;
At interval of the regular hour, close the second valve, open the first valve, from the sampling line sampling, the ammonia nitrogen concentration of sample is measured.
The effect of embodiment tetra-and effect
The three-diemsnional electrode related to according to the present embodiment is except the device of ammonia nitrogen, adopt national standard analytical procedure " nessler reagent spectrophotometry " to be analyzed the ammonia nitrogen concentration in the electrolysis treatment water outlet, after result shows electrolysis 67.5h, ammonia nitrogen is down to 0.58mg N/L from 24.0mg N/L, and zeolite saturated in electrolyzer is able to holomorphosis.At Faradaic current, be 1.8A, chlorine ion concentration is 300mg/L, when hydraulic detention time is 10min, processes water outlet and reaches national town sewage one-level A emission standard (GB18918-2002).
Embodiment five
Prepare waste water that a certain amount of ammonia nitrogen and chlorine ion concentration be respectively 23.5mg N/L, 300mg/L and pack in waste water tank 4, utilize the NaOH solution of 1mol/L and the H of 0.5mol/L
2SO
4It is 7 that solution is regulated water sample pH, utilizes Na
2SO
4Regulate specific conductivity to 1500 μ S/cm;
A kind of three-diemsnional electrode go out to anhydrate method of middle ammonia nitrogen of utilizing comprises the following steps:
As shown in Figure 1, connect device;
Open peristaltic pump, waste water is sent into to described electrolyzer, controlling the peristaltic pump rotating speed is 5rpm, and now the hydraulic detention time of waste water in electrolyzer is 31min;
Pass into the abundant waste water containing ammonia nitrogen at energising forward direction electrolyzer, until the water outlet ammonia nitrogen concentration is consistent with water inlet, make the electrolyzer mesolite state that reaches capacity, this step can, in order to test the instant regenerative power of zeolite in follow-up measurement, can be ignored in practical application;
After zeolite is saturated, open direct supply, controlling its outward current is 1.0A, now the current density between two-plate is 7.6mA/cm
2.Waste water containing ammonia nitrogen is carried out to electrolysis, the waste water that obtains the regenerated particle electrode and processed;
Close the first valve, open the second valve, adopt the waste water of header tank collection and treatment;
At interval of the regular hour, close the second valve, open the first valve, from the sampling line sampling, the ammonia nitrogen concentration of sample is measured.
The effect of embodiment five and effect
The three-diemsnional electrode related to according to the present embodiment is except the device of ammonia nitrogen, adopt national standard analytical procedure " nessler reagent spectrophotometry " to be analyzed the ammonia nitrogen concentration in the electrolysis treatment water outlet, after result shows electrolysis 10.5h, ammonia nitrogen is down to 0.29mg N/L from 23.5mg N/L, and zeolite saturated in electrolyzer is able to holomorphosis.At Faradaic current, be 1.0A, chlorine ion concentration is 300mg/L, when hydraulic detention time is 31min, processes water outlet and reaches national town sewage one-level A emission standard (GB18918-2002).
Embodiment six
Prepare waste water that a certain amount of ammonia nitrogen and chlorine ion concentration be respectively 27.0mg N/L, 210mg/L and pack in waste water tank 4, utilize the NaOH solution of 1mol/L and the H of 0.5mol/L
2SO
4It is 7 that solution is regulated water sample pH, utilizes Na
2SO
4Regulate specific conductivity to 1500 μ S/cm;
A kind of three-diemsnional electrode go out to anhydrate method of middle ammonia nitrogen of utilizing comprises the following steps:
As shown in Figure 1, connect device;
Open peristaltic pump, waste water is sent into to described electrolyzer, controlling the peristaltic pump rotating speed is 5rpm, and now the hydraulic detention time of waste water in electrolyzer is 31min;
Pass into the abundant waste water containing ammonia nitrogen at energising forward direction electrolyzer, until the water outlet ammonia nitrogen concentration is consistent with water inlet, make the electrolyzer mesolite state that reaches capacity, this step can, in order to test the instant regenerative power of zeolite in follow-up measurement, can be ignored in practical application;
After zeolite is saturated, open direct supply, controlling its outward current is 1.8A, now the current density between two-plate is 13.8mA/cm
2.Waste water containing ammonia nitrogen is carried out to electrolysis, the waste water that obtains the regenerated particle electrode and processed;
Close the first valve, open the second valve, adopt the waste water of header tank collection and treatment;
At interval of the regular hour, close the second valve, open the first valve, from the sampling line sampling, the ammonia nitrogen concentration of sample is measured.
The effect of embodiment six and effect
The three-diemsnional electrode related to according to the present embodiment is except the device of ammonia nitrogen, adopt national standard analytical procedure " nessler reagent spectrophotometry " to be analyzed the ammonia nitrogen concentration in the electrolysis treatment water outlet, after result shows electrolysis 20.25h, ammonia nitrogen is down to 0.87mg N/L from 27.0mg N/L, and zeolite saturated in electrolyzer is able to holomorphosis.At Faradaic current, be 1.8A, chlorine ion concentration is 210mg/L, when hydraulic detention time is 31min, processes water outlet and reaches national town sewage one-level A emission standard (GB18918-2002).
Claims (9)
1. a water treatment device of removing ammonia nitrogen in waste water, is characterized in that, comprises:
Electrolyzer, contain three-diemsnional electrode, for the treatment of described waste water;
Peristaltic pump, for carrying described waste water to described electrolyzer;
Header tank, for the waste water of collection and treatment;
Direct supply, for giving described electrolyzer with electricity;
The first pipeline, for connecting described waste water and described peristaltic pump;
Second pipe, for connecting described peristaltic pump and described electrolyzer; And
The 3rd pipeline, for connecting described electrolyzer and described header tank,
Wherein, the top of the negative electrode of described three-diemsnional electrode and anode is connected with described direct supply.
2. water treatment device according to claim 1 is characterized in that:
Wherein, the cubic capacity of described electrolyzer is 1 liter, and useful volume is 350 milliliters.
3. water treatment device according to claim 1 is characterized in that:
Wherein, described anode is Ti/RuO
2, described negative electrode is stainless steel plate, the granule electrode of described three-diemsnional electrode is using natural clinoptilolite.
4. water treatment device according to claim 1 is characterized in that:
Wherein, the particle diameter of described using natural clinoptilolite is the 2-5 millimeter, and packing height is 200 millimeters.
5. water treatment device according to claim 1 is characterized in that:
Wherein, the size of two pole plates of described electrolyzer is 172 millimeters * 38 millimeters * 1 millimeter, and spacing is 10 millimeters.
6. water treatment device according to claim 1 is characterized in that:
Wherein, the electric current that described direct supply provides is the 0-2 peace, and voltage is the 0-15 volt.
7. water treatment device according to claim 1 is characterized in that:
Wherein, described direct supply is provided with the electric current display screen.
8. water treatment device according to claim 1 is characterized in that:
Wherein, described peristaltic pump is provided with the rotating speed display screen.
9. water treatment device according to claim 1 is characterized in that:
Wherein, also be connected with the sampling line in parallel with described the 3rd pipeline on described electrolyzer, described sampling line has the first valve, and described the 3rd pipeline has the second valve.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030415A (en) * | 2014-06-23 | 2014-09-10 | 北京师范大学 | Non-diaphragm electric-Fenton reactor for treating organic wastewater difficult to degrade |
| CN113754047A (en) * | 2021-09-29 | 2021-12-07 | 浙江大学 | Nitration and denitrification integrated water treatment system |
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| 舒欣: "电化学氧化法处理氨氮废水影响因素的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》, 15 March 2013 (2013-03-15) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030415A (en) * | 2014-06-23 | 2014-09-10 | 北京师范大学 | Non-diaphragm electric-Fenton reactor for treating organic wastewater difficult to degrade |
| CN113754047A (en) * | 2021-09-29 | 2021-12-07 | 浙江大学 | Nitration and denitrification integrated water treatment system |
| CN113754047B (en) * | 2021-09-29 | 2022-12-30 | 浙江大学 | Nitration and denitrification integrated water treatment system |
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Application publication date: 20131204 |