CN104891717B - A kind of PhotoelectrochemicalTechnique Technique removes the method and apparatus of ammonia nitrogen in water - Google Patents
A kind of PhotoelectrochemicalTechnique Technique removes the method and apparatus of ammonia nitrogen in water Download PDFInfo
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Abstract
A kind of PhotoelectrochemicalTechnique Technique removes the method and apparatus of ammonia nitrogen in water, including the salinity dissolved oxygen concentration of the processed sewage of (1) regulation: measure sewage salinity and dissolved oxygen content, if salinity is less than 3PSU, then adds electrolyte；If content of oxygen dissolved in water is less than 2mg/l, then air-blowing in water, regulate content of oxygen dissolved in water 5mg/l；(2) electrolysis and ultraviolet irradiate sewage: while to electrolytic sewage, with dual wavelength ultraviolet line irradiated in situ electrode reaction region；(3) HClO, sodium hypochlorite and ozone decomposed: use Single wavelength uviol lamp to be irradiated, HClO, sodium hypochlorite and ozone are decomposed, makes HClO in water body, sodium hypochlorite and ozone concentration be respectively less than 0.1mg/l, discharge.The present invention can overcome physico-chemical process and rise the deficiency that biochemical process exists, and simultaneously compared with other electrochemical processes, has the process time short, ammonia nitrogen removal frank high.Ammonia nitrogen removal frank reaches more than 90%.
Description
Technical field
The present invention relates to the sewage disposal technology of field of environment engineering, specifically a kind of PhotoelectrochemicalTechnique Technique removes ammonia in water
The method and apparatus of nitrogen.
Background technology
Along with developing rapidly and the continuous expansion of city size of global industry, life and production process are given off
The pollution of water body environment is on the rise by the pollutant come, and wherein the nitrogen-containing compound of separate sources has become the weight of water body environment
Want one of pollutant.Ammonia nitrogen in water is mainly derived from the industry such as the decomposition of itrogenous organic substance in sanitary sewage, coking, synthesis ammonia
Waste water, agricultural drain and nature process etc..According to statistics, China's Main Lakes is in eutrophication shape because of nitrogen and phosphorus pollution
The 56% more than of lake total amount is added up in accounting for of state.Substantial amounts of nitrogen compound enters water body environment, causes Water quality to deteriorate, shadow
Ring fishery, agricultural and town environment quality, and then affect health.In sewage nitrogen with ammonia nitrogen, organic nitrogen, nitrite nitrogen with
And four kinds of forms of nitrate nitrogen exist.Ammonia nitrogen in sewage is the product of microbial activities, the size of ammonia nitrogen amount in water, is to weigh water
The index of body pollution degree.
Traditional sewage water denitrification technology is summed up and can be divided into physico-chemical process and bioanalysis, is described below respectively.
(1) physico-chemical process sewage water denitrification technology, including:
A. blow-off method: blow-off method is mainly used in the removal of ammonia nitrogen in waste water.Its principle is air or other carrier gas to be passed through
In water, gas is made to be fully contacted with waste water, so that the NH in waste water3Shift to gas phase, reach to remove the purpose of ammonia nitrogen in water.
In the basic conditions, free ammonia nitrogen is become to be blown, to remove the side of NH3-N in waste water mineralized nitrogen in waste water with steam air stripping
Method is also referred to as ammonia still process method.
The method is suitable for processing high-concentration ammonia nitrogenous wastewater, except ammonia effect stability, simple to operate, but it is dirty to easily cause secondary
Dye, as used ammonia to steam method in the basic conditions, then needs to consume a large amount of alkali, and production cost is high.
B. absorption method: utilize the specific surface area and absorbability or ion-exchange capacity that adsorbent is bigger by the ammonia in system
Nitrogen adsorbs at adsorbent surface firmly, by desorption and the regeneration of adsorbent, is removed by the nitrogen-containing pollutant in water or returns
Receive and utilize.The conventional active charcoal of adsorbent, natural minerals, haydite, ion exchange resin etc..
The method environmental protection, material source is wide, and technique is simple.But material adsorption capacity is limited, frequently, regeneration fills in regeneration
Putting complexity, the adsorbent capacity after regeneration declines.
C. Wet Catalytic Oxidation Method: catalytic wet air oxidation is under certain temperature, pressure, in the effect of catalyst
Under, make the itrogenous organic substance in sewage resolve into N with air or oxygen for oxidant2, thus reach the purpose of denitrogenation.
The method response speed is fast, and floor space is little, non-secondary pollution, and treatment effeciency is high.But need to heat up pressurization, is processed into
This height, requires strict to reaction condition, equipment etc., and catalyst is expensive.
D. break point chlorination method: chlorine or the sodium hypochlorite of q.s are put in waste water, when reaching certain point, in waste water
Contained free chlorine contents is relatively low, and ammonia-nitrogen content trends towards zero；When chlorine intake exceedes this, the free chlorine in water contains
Amount rises, and this point is frequently referred to break, and chlorination in this case is referred to as breakpoint chlorination, the ammonia nitrogen in waste water be oxidized to nitrogen and
It is divested.Concrete course of reaction is as follows:
(1)
(2)
(3)
(4)
The method response speed is fast, needs equipment few, but the safe handling of liquid chlorine and storage request are high, and processing cost is the most relatively
High.If replacing liquid chlorine with sodium hypochlorite or chlorine dioxide generating device, although safer, operating cost can decline,
But device is expensive.
E. chemical precipitation method: being mainly by adding certain chemical agent in waste water of chemical precipitation method, is allowed to useless
Nitrogenous organic or inorganic thing in water reacts, and forms difficulty soluble salt and precipitates, thus reduces the method for nitrogen content in water.Mesh
Before, most study is to add containing Mg in waste water2+And PO43-Medicament.Concrete course of reaction is as follows:
(5)
(6)
(7)
The method response speed is fast, simple to operate, can Automated condtrol.But the large usage quantity of precipitant, need to be to sewage
PH is adjusted.The mud produced is difficult.
F. catalytic reduction: catalytic reduction is i.e. with hydrogen as reducing agent, under metallic catalyst effect, by nitrate nitrogen
It is reduced into the process of the nitrogen of environmental sound.Soon, do not change the ultimate constituent of drinking water because it has response speed, do not produce two
Secondary pollution and the advantage of reaction unit simple in construction and be considered as one of the most promising denitrogenation technology.
The method cleaning non-secondary pollution, response speed is fast, adapts to differential responses condition, it is easy to operational management.But urge
The activity and selectivity of agent is wayward.
G. membrane separation process: membrane separation process is to utilize the natural or thin film with selective penetrated property of synthetic, in addition
Boundary's energy or chemical potential difference are the process that motive force realizes various Component seperation, and the membrane separation process for denitrogenation of waste water includes reverse osmosis
Thoroughly and electrodialysis two kinds.Separatory film has differential permeability, and conventional reverse osmosis membrane is mainly acetate membrane.
The method treatment effeciency is high, and without phase transformation, modularization, flow process is simple, power consumption is low.But fouling membrane, stability easily occur
Difference, operating cost are high, can only process low concentration wastewater, and complicated components waste water needs pretreatment.
(2) bioanalysis denitrogenation technology:
The bio-denitrifying sewage technology currently mainly used is to realize time or spatially by reactor and control device
Aerobic, anaerobic environment, reach the purpose of nitration denitrification denitrogenation.Nitrification is i.e. little at aerobic condition, and autotrophic type nitrification is thin
Ammonium oxidation is nitrous acid (salt) and nitric acid (salt) by bacterium；Denitrification refers to the different anti-nitre of oxygen type under anoxia or anaerobic condition
Change bacterium and nitrous acid (salt) and nitric acid (salt) are reduced to the process of nitrogen.At present, the method that bio-denitrifying sewage is the most general is exactly
Associating nitration reaction and two processes of anti-nitration reaction.The first step includes two kinds of effects, first by nitrite bacteria by ammoxidation
For nitrite, being nitrate by nitrobacteria by nitrite-oxidizing the most again, second step is the common work having kind of microorganism
With, with Organic substance as electron donor, it is first nitrite by nitrate reduction and then is reduced to nitrogen and discharges, reach denitrogenation
Purpose.Difference according to sewage treatment process is divided into activated sludge denitrification process and biomembrane denitrogenation technique.Bioanalysis is concrete
Denitrification reaction is as follows:
(8)
(9)
Overall reaction:
(10)
Anti-nitration reaction refers under anaerobic, and nitrate nitrogen and nitrite nitrogen are reduced to nitrogen by denitrifying bacterium
Process, its reaction is as follows:
(11)
(12)
Overall reaction:
(13)
Bioanalysis is environmentally friendly, high performance cheap, reduces secondary pollution.But traditional bio-denitrification technology mainly there is also
Following problem: nitrobacteria is autotrophic bacteria, poor growth；Water quality and quantity is impacted especially that toxic impact is very by nitrobacteria
Sensitivity, effluent quality easily fluctuates；Nitrification and denitrification process is difficult to unify over time and space, and nitric efficiency is low；Some works
Industry waste water just must can carry out biological denitrificaion by additional carbon.
At present electrochemical process denitrogenation is just becoming the focus of denitrogenation research, uses titanium ruthenium iridium to be anode, stainless if any researcher
Steel is that refuse leachate is processed by the electrochemical oxidation process of negative electrode, utilizes SPR anode electrolysis to process refuse leachate, employing
Electrochemical oxidation process processes simulation high-concentration ammonia nitrogenous wastewater；The process time from 2 hours to 7 hours, NH4+Ion concentration is removed
Rate is 53.6% or nitrogen removal rate reaches 87.35%.Ammonia nitrogen solution after above electrochemical process processes, process product is N2、
NO2 -Or NO3 -, generate NO2 -Or NO3 -After, also need to carry out anti-nitration reaction further so that final reacting product is changed into N2Thus
Reduce total nitrogen concentration in water.
From the point of view of existing electrochemistry removes the process of ammonia nitrogen and total nitrogen, total denitrogenate process it is generally required to some hours,
The process time is the longest, and can be NO by mineralized nitrogen in some cases2 -Or NO3 -, in addition it is also necessary to further combined with other technologies
Carrying out anti-nitration reaction to reduce total nitrogen content, technique is complex.Summary of the invention
The present invention provides a kind of PhotoelectrochemicalTechnique Technique to remove the method and apparatus of ammonia nitrogen in water, deposits solving existing physico-chemical process
Secondary pollution, adsorbent reactivation difficulty, catalyst is expensive, active and selectivity is wayward, cost is high, generation is difficult
Process mud and easily occur fouling membrane and bioanalysis bacterial growth water quality and quantity impact slow, anti-is poor, water outlet shakiness
Needed for fixed and existing electrochemical process the process time longer, be easily NO by mineralized nitrogen2 -Or NO3 -Etc. technical problem.
The technical scheme is that a kind of PhotoelectrochemicalTechnique Technique removes the method for ammonia nitrogen in water, it is characterised in that include
Following steps:
(1) salinity and the dissolved oxygen concentration of processed sewage are regulated: measure sewage salinity and dissolved oxygen content, if salinity is low
In 3PSU, then add electrolyte；If content of oxygen dissolved in water is less than 2mg/l, then air-blowing in water, regulate content of oxygen dissolved in water
≧5mg/l；
(2) electrolysis and ultraviolet irradiate sewage: while to electrolytic sewage, with dual wavelength ultraviolet line irradiated in situ electrode
Conversion zone；
(3) HClO, sodium hypochlorite and ozone decomposed: use Single wavelength uviol lamp be irradiated, by HClO, sodium hypochlorite and
Ozone decomposes, and makes HClO in water body, sodium hypochlorite and ozone concentration be respectively less than 0.1mg/l, discharge.
In step (1), if salinity is less than 3PSU, the electrolyte of addition is not for have virose soluble chloride.
In step (2), can be simultaneously emitted by during the light source employing work of described dual wavelength ultraviolet line 254nm and
The Burdick lamp of 185nm wavelength.
In step (2), the current density range of electrolysis is 20-100mA/cm2。
In step (2), the irradiation intensity scope of dual wavelength ultraviolet line is 200uW/cm2 -1900 uW/cm2；Step (2)
Sewage is 20 seconds-120 seconds by being electrolysed the process time irradiated with ultraviolet.
In step (3), it is 254nm that described Single wavelength uviol lamp sends the wavelength of ultraviolet.
A kind of PhotoelectrochemicalTechnique Technique implemented described in claim 1 removes the device of the method for ammonia nitrogen in water, and its feature exists
In, including sewage regulating box, electrolysis/dual wavelength ultraviolet line irradiated in situ case and HClO, sodium hypochlorite and ozone decomposed case, sewage
The outlet of the bottom of regulating box is connected by the water inlet of sewage pump with electrolysis/dual wavelength ultraviolet line irradiated in situ bottom portion, electricity
The outlet of solution/dual wavelength ultraviolet line irradiated in situ upper box part and HClO, sodium hypochlorite and the water inlet of ozone decomposed lower box part
Connecting, the sewage after process flows out from the outlet being located at this HClO and ozone decomposed upper box part；At described sewage regulating box
Inside it is provided with aeration tube and agitator；At this electrolysis/dual wavelength ultraviolet line irradiated in situ case built with electrolysis electrode, at electrolysis electrode
Negative electrode and side, anode gap be vertically arranged dual wavelength ultraviolet line lamp；At described HClO, sodium hypochlorite and ozone decomposed case
Built with Single wavelength uviol lamp.
Described dual wavelength ultraviolet line lamp can send the dual wavelength ultraviolet line of 254nm and 185nm wavelength；Described list
Length ultraviolet lamp can send the Single wavelength ultraviolet that wavelength is 254nm.
Described dual wavelength ultraviolet line lamp and Single wavelength uviol lamp are all sealingly mounted in quartz lamp set.
The solution have the advantages that: the electrolysis sewage containing certain salinity produces hypochlorous acid (or sodium hypochlorite), double wave
Long ultraviolet (185nm+254nm) irradiated in situ, Single wavelength ultraviolet (254nm) irradiate and aoxidize further and take out residual ozone
PhotoelectrochemicalMethod Method, utilize the dominant response oxidation material such as HClO, sodium hypochlorite, O3, OH and [O] to be turned by ammonia nitrogen in water
Turn to N2, thus reduce ammonia nitrogen and total nitrogen content in water.Physico-chemical process can be overcome and rise the deficiency that biochemical process exists, simultaneously and its
He compares electrochemical process, has the process time short, ammonia nitrogen removal frank high.After the method for the invention and system process
Ammonia nitrogen waste water, ammonia nitrogen removal frank reaches more than 90%.
Accompanying drawing explanation
Fig. 1 is the system composition schematic diagram that PhotoelectrochemicalTechnique Technique of the present invention removes ammonia nitrogen in water.
Description of reference numerals: 1. sewage regulating box；2. electrolysis/dual wavelength ultraviolet line irradiated in situ case；3. HClO, secondary chlorine
Acid sodium and ozone decomposed case；4. sewage pump；5. aeration tube；6. agitator；7. quartz lamp set；8. double-wavelength ultraviolet lamp；9. electrolysis
Electrode；10. Single wavelength uviol lamp.
Detailed description of the invention
Seeing Fig. 1, the present invention is a kind of uses PhotoelectrochemicalTechnique Technique to remove the device of ammonia nitrogen in water, including:
(1) sewage regulating box 1: for regulating the salinity dissolved oxygen concentration of processed sewage, by sewage from and the mouth of a river be filled with
Sewage regulating box 1, is transported to follow-up processing means from outlet after regulation.The outlet of the bottom of sewage regulating box 1 is by dirt
Water pump 4 is connected with the water inlet bottom electrolysis/dual wavelength ultraviolet line irradiated in situ case 2.It is provided with aeration tube in sewage regulating box 1
5 and agitator 6.
(2) electrolysis/dual wavelength ultraviolet line irradiated in situ case 2: irradiate sewage for electrolyzing sewage with dual wavelength ultraviolet line,
At the casing of this electrolysis/dual wavelength ultraviolet line irradiated in situ case 2 built with electrolysis electrode 9(negative electrode and anode transpostion interval weight
Folded), the left side vertical at negative electrode and anode arranges a double-wavelength ultraviolet lamp 8, from the gap between negative electrode and anode during work
It is pointed into right side.Double-wavelength ultraviolet lamp 8 can send the dual wavelength ultraviolet line (commercially available) of 254nm and 185nm wavelength.
The photon energy of the Burdick lamp of 185nm wavelength is relatively big, has relatively high de-agglomeration ability, and its ionization can utilize surrounding air to produce
Raw ozone, ozone is decomposed into elemental oxygen and oxygen under ultraviolet 254nm, and its induced by atomic oxygen is as lively as a cricket；And 254nm ultraviolet
With ozone decomposition, linear light can ensure that ozone does not escapes out simultaneously, in order to avoid harm health.
Electrolytic current density scope in described electrolysis/dual wavelength ultraviolet line irradiated in situ case 2 is 20-100mA/cm2,
The sewage residual chlorine concentration in its exit is 2-10mg/L.The outlet on electrolysis/dual wavelength ultraviolet line irradiated in situ case 2 top with
The water inlet of HClO, sodium hypochlorite and ozone decomposed case 3 bottom connects.
(3) HClO, sodium hypochlorite and ozone decomposed case 3: shine in situ from described electrolysis/dual wavelength ultraviolet line for decomposing
Penetrate the sewage that case 2 flows out, at this HClO, sodium hypochlorite and ozone decomposed case 3 built with the Single wavelength uviol lamp that wavelength is 254nm
10, the sewage flow through is irradiated.
Described dual wavelength ultraviolet line lamp 8 and Single wavelength uviol lamp 10 are all sealingly mounted in quartz lamp set 7.
A kind of PhotoelectrochemicalTechnique Technique of the present invention removes the method for ammonia nitrogen in water, and its processing procedure is as follows:
1, regulation water body is to being suitable for salinity, and regulation oxygen in water is to being suitable for concentration:
Electrolyzing sewage needs suitable salinity.Before sewage enters reaction unit, first measure water salinity, if salinity is less than
3PSU, then adding NaCl(can also be that KCl or MgCl etc. does not have virose soluble chloride), water salinity is not less than
3PSU；If water salinity is not less than 3PSU, then without adding electrolyte.In the present invention, the required salinity of electrolysis is 3PSU.
While measuring and regulating salinity, measure content of oxygen dissolved in water, if content of oxygen dissolved in water is less than 2mg/l,
Then to water body air-blowing, regulate content of oxygen dissolved in water 5mg/l.In the present invention, the required water dissolution oxygen content that flows into answers 5mg/l.
2, electrolyzing sewage+dual wavelength ultraviolet line irradiated in situ electrode reaction region water body:
After the sewage with certain salinity is entered electrolysis/ultraviolet lighting case by sewage regulating box, electricity during electrode pad region
Pole starts electrolysis, and negative electrode, anode generation electrochemical reaction produce sodium hypochlorite, and concrete reaction is as follows:
Anode:(14)
Negative electrode:(15)
The Cl that anode generates2It is dissolved in rapidly water and generates hypochlorous acid or sodium hypochlorite:
(16)
(17)
HClO or NaClO generated has oxidisability, it is possible to oxidation ammonia nitrogen.React as follows:
(18)
In the present invention, electrolytic current density scope is 20-100mA/cm2, electrolysis/dual wavelength ultraviolet illumination reaction case goes out
At Kou, residual chlorine concentration is 2-10mg/L.
It addition, while electrolysis produces HClO and NaClO, OH the most also can be produced, can aoxidize equally
Ammonia nitrogen in water.Concrete reaction is as follows:
(19)
While electrolysis produces HClO and OH, utilize dual wavelength ultraviolet line irradiation electrode conversion zone.Dual wavelength is purple
The Burdick lamp of 254nm and 185nm wavelength can be simultaneously emitted by when outside line lamp refers to work.The Burdick lamp of 185nm wavelength,
Photon energy is relatively big, and the ionization of 185nm ultraviolet can utilize the dissolved oxygen in water body to produce ozone, and concrete reaction is such as
Under:
(20)
(21)
(22)
In formula:hvFor ultraviolet photon, M is that the molecule of chamber wall and electrode does catalytic substance, produces ozone.
Being radiated in water, through 185nm length ultraviolet, the ozone produced and have oxidisability, oxidable mineralized nitrogen is N2.At electricity
Solution/dual wavelength ultraviolet illumination reaction case exit ozone concentration should be 0.5-3mg/l.
While 185nm length ultraviolet irradiates, the ultraviolet of 254nm wavelength irradiates cell reaction region the most simultaneously,
Under 254nm length ultraviolet irradiates, occur to react as follows:
(23)
(24)
Under 254nm ultraviolet irradiation, newly-generated HClO and O3While oxidation ammonia nitrogen, decomposite again atomic state
Oxygen, this atomic oxygen has extremely strong oxidisability, can be N by ammonium oxidation2。
One Burdick lamp is vertically positioned at side, cathode and anode gap, is pointed into opposite side from side, gap during work.At this
It is 200uW/cm in the corresponding lateral edges ultraviolet irradiation strength range of uviol lamp in bright2 -1900 uW/cm2。
The time that sewage flows through to exit at electrolysis/dual wavelength ultraviolet illumination reaction tank inlet is 20 seconds-120 seconds,
And the response time that sewage is in reaction chamber is 20 seconds-120 seconds.
In electrolysis/dual wavelength ultraviolet illumination reaction case, the ammonia nitrogen of sewage is at HClO, NaClO, O3, OH and [O] etc.
Under the effect of dominant response oxidation material, when generating concentration, intensity of illumination, reaction by regulation electric current density, HClO, NaClO
Between etc. response parameter, make ammonia nitrogen in sewage be oxidized to N the most efficiently, selectively2, without oxidation further
For NO2 -Or NO3 -。
3, sewage flows into HClO, sodium hypochlorite and ozone decomposed case after electrolysis/dual wavelength ultraviolet illumination reaction case processes
Sewage after electrolysis/dual wavelength ultraviolet illumination reaction case processes flows into HClO and ozone decomposed case.Due to this
Time sewage in still contain the chlorine residue of 2-10mg/L and the ozone of 0.5-3mg/l, secondary then can be caused dirty such as untreated discharge
Dye.In HClO, NaClO and ozone decomposed case, Single wavelength (254nm) uviol lamp is installed and is irradiated, HClO, sodium hypochlorite
And ozone is decomposed.Finally export HClO, NaClO and ozone concentration the water body flowed out from HClO, NaClO and ozone decomposed case
It is respectively less than 0.1mg/l, thus reaches green discharge.
Claims (9)
1. a PhotoelectrochemicalTechnique Technique removes the method for ammonia nitrogen in water, it is characterised in that comprise the following steps:
(1) salinity and the dissolved oxygen concentration of processed sewage are regulated: measure sewage salinity and dissolved oxygen content, if salinity is less than
3PSU, then add electrolyte；If content of oxygen dissolved in water is less than 2mg/l, then air-blowing in water, regulate content of oxygen dissolved in water
5mg/l；
(2) electrolysis and ultraviolet irradiate sewage: while to electrolytic sewage, by dual wavelength ultraviolet line irradiated in situ electrode reaction
Region；
(3) HClO, sodium hypochlorite and ozone decomposed: use Single wavelength uviol lamp to be irradiated, by HClO, sodium hypochlorite and ozone
Decompose, make HClO in water body, sodium hypochlorite and ozone concentration be respectively less than 0.1mg/l, discharge.
PhotoelectrochemicalTechnique Technique the most according to claim 1 removes the method for ammonia nitrogen in water, it is characterised in that in step (1)
In, if salinity is less than 3PSU, the electrolyte of addition is not for have virose soluble chloride.
PhotoelectrochemicalTechnique Technique the most according to claim 1 removes the method for ammonia nitrogen in water, it is characterised in that in step (2)
In, the ultraviolet of 254nm and 185nm wavelength can be simultaneously emitted by during the light source employing work of described dual wavelength ultraviolet line
Lamp.
PhotoelectrochemicalTechnique Technique the most according to claim 1 removes the method for ammonia nitrogen in water, it is characterised in that in step (2)
In, the current density range of electrolysis is 20-100mA/cm2。
PhotoelectrochemicalTechnique Technique the most according to claim 1 removes the method for ammonia nitrogen in water, it is characterised in that in step (2)
In, the irradiation intensity scope of dual wavelength ultraviolet line is 200uW/cm2 -1900 uW/cm2；Step (2) sewage is electrolysed and ultraviolet
The process time that line irradiates is 20 seconds-120 seconds.
PhotoelectrochemicalTechnique Technique the most according to claim 1 removes the method for ammonia nitrogen in water, it is characterised in that in step (3)
In, it is 254nm that described Single wavelength uviol lamp sends the wavelength of ultraviolet.
7. the PhotoelectrochemicalTechnique Technique that a kind is implemented described in claim 1 removes the device of the method for ammonia nitrogen in water, it is characterised in that
Including sewage regulating box, electrolysis/dual wavelength ultraviolet line irradiated in situ case and HClO, sodium hypochlorite and ozone decomposed case, sewage is adjusted
The outlet of the bottom of joint case is connected by the water inlet of sewage pump with electrolysis/dual wavelength ultraviolet line irradiated in situ bottom portion, and electrolysis/
The outlet of dual wavelength ultraviolet line irradiated in situ upper box part connects with the water inlet of HClO, sodium hypochlorite and ozone decomposed lower box part
Connecing, the sewage after process flows out from the outlet being located at this HClO and ozone decomposed upper box part；In described sewage regulating box
It is provided with aeration tube and agitator；At this electrolysis/dual wavelength ultraviolet line irradiated in situ case built with electrolysis electrode, at electrolysis electrode
Negative electrode and side, anode gap are vertically arranged dual wavelength ultraviolet line lamp；In described HClO, sodium hypochlorite and ozone decomposed case
Equipped with Single wavelength uviol lamp.
PhotoelectrochemicalTechnique Technique the most according to claim 7 removes the device of ammonia nitrogen in water, it is characterised in that described double wave
Long Burdick lamp can send the dual wavelength ultraviolet line of 254nm and 185nm wavelength；Described Single wavelength uviol lamp can send
Wavelength is the Single wavelength ultraviolet of 254nm.
PhotoelectrochemicalTechnique Technique the most according to claim 7 removes the device of ammonia nitrogen in water, it is characterised in that described double wave
Long Burdick lamp and Single wavelength uviol lamp are all sealingly mounted in quartz lamp set.
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