CN109166642A - Nuclear power station radioactive liquid waste organic matter treating apparatus - Google Patents
Nuclear power station radioactive liquid waste organic matter treating apparatus Download PDFInfo
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- CN109166642A CN109166642A CN201811209749.1A CN201811209749A CN109166642A CN 109166642 A CN109166642 A CN 109166642A CN 201811209749 A CN201811209749 A CN 201811209749A CN 109166642 A CN109166642 A CN 109166642A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
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Abstract
本发明公开了一种核电站放射性废液有机物处理装置，包括：废液箱，接收并储存待处理废液；废液箱泵，入口与废液箱出口连接，用于为待处理废液提供动力；高级氧化处理装置，入口通过管线与废液箱泵出口相连；臭氧发生器，用于产生臭氧，入口连接有氧气供给装置，出口与高级氧化处理装置连接；臭氧尾气破坏器，入口与高级氧化处理装置的尾气排放口连接；监测箱，入口与高级氧化处理装置的出口连接，用于暂存处理后的废液；以及监测箱泵，入口与监测箱出口连接，用于排放处理后的废液。相对于现有技术，本发明核电站放射性废液有机物处理装置工艺简单、操作方便、适用水质范围广、经济安全，便于广泛推广应用。
The invention discloses an organic matter processing device for radioactive waste liquid in a nuclear power plant, comprising: a waste liquid tank for receiving and storing waste liquid to be treated; a waste liquid tank pump, the inlet of which is connected with the outlet of the waste liquid tank, for providing power for the waste liquid to be treated ; Advanced oxidation treatment device, the inlet is connected to the outlet of the waste tank pump through a pipeline; Ozone generator, used to generate ozone, the inlet is connected to an oxygen supply device, and the outlet is connected to the advanced oxidation treatment device; Ozone tail gas destroyer, the inlet is connected to the advanced oxidation treatment device The exhaust gas discharge port of the treatment device is connected; the monitoring box, whose inlet is connected with the outlet of the advanced oxidation treatment device, is used to temporarily store the treated waste liquid; and the monitoring box pump, whose inlet is connected with the outlet of the monitoring box, is used to discharge the treated waste liquid. Compared with the prior art, the nuclear power plant radioactive waste liquid organic matter treatment device of the present invention has simple process, convenient operation, wide applicable water quality range, economical safety, and is convenient for wide popularization and application.
Description
Technical field
The invention belongs to radioactive liquid waste process fields, it is more particularly related to a kind of nuclear power station Spent Radioactive
Liquid organic matter treating apparatus.
Background technique
During nuclear power station is run and is overhauled, some radioactive liquid wastes containing organic components can be generated, according to source
Difference can be divided into nuclear power station laundry waste liquid and nuclear power station chemical decontamination waste liquid.
The hot laundry of nuclear power station when cleaning the used clothing of staff in radioactivity control area, can generate containing
The radioactive liquid waste of organic components (predominantly detergent, builder, fungicide etc.), this kind of waste liquid are referred to as nuclear power station laundry
Waste liquid.
During overhaul of the equipments and apparatus decontamination, it can generate containing organic components (predominantly lubricating oil, organic solvent, chela
Mixture etc.) radioactive liquid waste, this kind of waste liquid is referred to as chemical decontamination waste liquid (or chemical waste fluid).
To reduce nuclear power station radioactive liquid waste to the dose of radiation of the public, organic matter is reduced to the bad of environment receiving water body
It influences, it is necessary to radioactive liquid waste organic components processing unit be set in nuclear power station and remove organic components, in order to rear
The continuous processing to radionuclide.
Existing nuclear power station mainly uses evaporating and concentrating process and inorganic salts absorbing process to handle radioactive liquid waste,
Evaporating and concentrating process is to undergo phase transition raw water by heating, pollutant is stranded in concentrate, after vapor is condensed
To environmental emission.
But it has some disadvantages, and a large amount of heat exchanger, pipeloop, process flow need to be arranged in evaporating and concentrating process
Relatively complicated, complicated for operation, equipment is huge, and energy consumption is high.In addition, vaporising device handles radioactivity of the nuclear power station containing organic components
The problem of there are also foams to carry secretly when waste liquid, get rusty, corrosion and scaling, misoperation, which also results in, explodes.
Inorganic adsorbent technique be mainly utilize Active Carbon in Organic adsorption function and zeolite to radionuclide caesium,
Rubidium has the function of the characteristics of selective absorption, makes nuclear power station radioactive liquid waste when flowing through active-carbon bed, the organic matter in waste liquid
Ingredient is tightly held by activated carbon removal, and the radionuclide caesium, rubidium in waste liquid are by zeolite Adsorption, to reduce organic in waste liquid
Object constituent concentration and activity concentration.
But inorganic adsorbent technique also suffers from certain drawbacks: the applicable water quality range of inorganic adsorbent technique is small, and secondary waste produces
Raw amount is big.It is active-carbon bed when removing the higher waste liquid of organic components content, a large amount of radioactive solid wastes can be generated.This
Outside, zeolite only has the function of selective absorption to radionuclide caesium, rubidium, to the selective adsorption capacity of other radionuclides
It is not strong, when the main contributions nucleic of activity concentration is not caesium, rubidium, then the radioactive activity of waste liquid can not be effectively reduced
Concentration.
In view of this, it is necessory to provide, a kind of simple process, easy to operate, to be applicable in water quality range wide, economic security
Nuclear power station radioactive liquid waste organic matter treating apparatus.
Summary of the invention
Goal of the invention of the invention is: overcoming the deficiencies of the prior art and provide a kind of simple process, easy to operate, suitable
With water quality range is wide, nuclear power station radioactive liquid waste organic matter treating apparatus of economic security.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of nuclear power station radioactive liquid waste organic matter treating apparatus,
Include:
Exhausted bath box receives and stores waste liquid to be processed；
Exhausted bath box pump, entrance and exhausted bath box outlet connect, for providing power for waste liquid to be processed；
Advanced oxidation processing unit, entrance are connected by pipeline with exhausted bath box pump discharge；
Ozone generator, for generating ozone, entrance is connected with oxygen feedway, outlet and advanced oxidation processing unit
Connection, oxygen feedway are used to provide oxygen for ozone generator；
Ozone tail gas destructor, entrance are connect with the exhaust port of advanced oxidation processing unit；
Monitoring case, entrance are connect with the outlet of advanced oxidation processing unit, for temporary treated waste liquid；And
Monitoring case pump, entrance and monitoring case outlet connect, for the waste liquid after emission treatment.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the advanced oxidation processing dress
Set the ozone contact reaction device and UV reactive device being connected in series including one or more levels, the entrance of every ozone contact reaction device
Pipeline is connect with ozone generator.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the ozone contact reaction device
Using counter-flow designs, waste liquid enters from ozone contact reaction device bottom, the discharge at the top of ozone contact reaction device, subsequent waste liquid into
Enter UV reactive device, UV reactive device uses counter-flow designs, and waste liquid enters from UV reactive device bottom, at the top of UV reactive device
Discharge.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the advanced oxidation processing dress
Set the UV-ozone contact reactor being connected in series including one or more, the inlet tube of every UV-ozone contact reactor
Road is connect with ozone generator.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the UV-ozone contact
Reactor uses counter-flow designs, and waste liquid enters from UV-ozone contact reactor bottom, from UV-ozone contact reactor top
Portion's discharge.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the oxygen feedway is
Oxygen cylinder or oxygenerator store oxygen when for oxygen cylinder in oxygen cylinder, when for oxygenerator, be prepared in situ using air
Oxygen.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the advanced oxidation processing dress
Overflow line is additionally provided between the outlet set and waste liquid tank inlet.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the exhausted bath box pump discharge and
Front filter is provided between advanced oxidation processing unit entrance.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the monitoring tank inlet and height
Grade oxidation treatment device is provided with after-filter between outlet.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the detection case pump discharge with
Return line is additionally provided between waste liquid tank inlet.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the exhausted bath box is arranged in parallel
There are two.
As a kind of improvement of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, the monitoring case is arranged in parallel
There are two.
Compared with the existing technology, nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention is imitated with following Advantageous
Fruit:
1) by using " ozone oxidation+Ultraviolet Oxidation " technique, the organic components in radioactive liquid waste can be effectively removed；
2) during processing, without adding chemical agent, and ozone is not soluble in water, does not remain on liquid phase, entire to locate
Reason process will not introduce impurity, reduce the yield of secondary waste；
3) water quality that treated is suitable for evaporation, ion exchange and the nuclear power station conventionals radioactive liquid waste such as reverse osmosis processing；
4) safety, economy and the availability of the processing of radioactive liquid waste organic matter are improved, there is extensive market to answer
Use prospect.
Detailed description of the invention
With reference to the accompanying drawings and detailed description, nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention is carried out
It is described in detail, in which:
Fig. 1 is the first embodiment structure schematic diagram of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention.
Fig. 2 is second of embodiment structure schematic diagram of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention.
Appended drawing reference:
10- exhausted bath box；12- exhausted bath box pump；14- front filter；16- advanced oxidation processing unit；The contact of 160- ozone is anti-
Answer device；162- UV reactive device；164- UV-ozone contact reactor；18- ozone generator；20- oxygen feedway；22-
Ozone tail gas destructor；24- after-filter；26- monitoring case；28- monitoring case pump；L1- overflow line；L2- return line.
Specific embodiment
In order to be more clear goal of the invention of the invention, technical solution and its technical effect, below in conjunction with attached drawing and tool
Body embodiment, the present invention will be described in further detail.It should be understood that specific embodiment party described in this specification
Formula is not intended to limit the present invention just for the sake of explaining the present invention.
It should be noted that when a component is known as " connection " another component, it can be directly connected to it is another
A component, or may be simultaneously present component placed in the middle.
It is only relative concept or with device each other it should also be noted that, the positional terms such as forward and backward in the present embodiment
Normal operating condition be reference, and should not be regarded as restrictive.
It please refers to shown in Fig. 1 and Fig. 2, nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention, comprising:
Exhausted bath box 10 receives and stores waste liquid to be processed；
Exhausted bath box pump 12, entrance and the outlet of exhausted bath box 10 connect, for providing power for waste liquid to be processed；
Advanced oxidation processing unit 16, entrance are connected by pipeline with 12 outlet of exhausted bath box pump；
Ozone generator 18, for generating ozone, entrance is connected with oxygen feedway 20, and outlet is handled with advanced oxidation
Device 16 connects, and oxygen feedway 20 is used to provide oxygen for ozone generator 18；
Ozone tail gas destructor 22, entrance are connect with the exhaust port of advanced oxidation processing unit 16；
Monitoring case 26, entrance are connect with the outlet of advanced oxidation processing unit 16, for temporary treated waste liquid；And
Monitoring case pump 28, entrance and the outlet of monitoring case 26 connect, for the waste liquid after emission treatment.
In the shown embodiment, exhausted bath box 10 be the container with a constant volume, be set side by side there are two, one of them
When receiving waste liquid, another can be used as spare, and top is provided with waste liquid entrance, and is connected with upstream line, for receiving and storing up
Waste liquid to be processed is deposited, bottom is provided with waste liquid outlet, while having radiation proof function.
Exhausted bath box pump 12 is common liquid delivery pump, and entrance is connected by pipeline and the waste liquid outlet of 10 bottom of exhausted bath box
It is logical, for providing power for the waste liquid to be processed collected in exhausted bath box 10, carry out subsequent reactions.
Refering to Figure 1, being the first embodiment of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention
Structural schematic diagram, wherein advanced oxidation processing unit 16 includes 160 He of ozone contact reaction device that one or more levels is connected in series
UV reactive device 162, the inlet duct of every ozone contact reaction device 160 are connect with ozone generator 18；It is more when being provided with
It can be 2 grades, 3 grades, 4 grades, 5 grades, 6 grades or more when ozone contact reaction device 160 and UV reactive device 162 that grade is connected in series
Grade, ozone contact reaction device 160 and UV reactive device 162 are alternately arranged in series, for removing the organic matter in radioactive liquid waste.
The ozone contact reaction device 160 of series connection and the quantity of UV reactive device 162 can be according to water quality situations and processing
It is required that being selected, when organic concentration is low, ozone contact reaction device 160 and UV reactive that level-one is connected in series may be selected
The ozone contact reaction device 160 and UV reactive device 162 of plural serial stage connection may be selected when organic concentration is high in device 162.
The bottom inlet of First ozone contact reaction device 160 is connect with 12 outlet of exhausted bath box pump by pipeline, from useless
The waste liquid of liquid case 10 mixes one with the ozone from ozone generator 18 at the bottom inlet pipeline of ozone contact reaction device 160
It is reacted with ozone contact reaction device 160 is entered.Ozone contact reaction device 160 uses counter-flow designs, and waste liquid is contacted from ozone
160 bottom of reactor enters, and is discharged at the top of ozone contact reaction device 160, subsequent waste liquid enters UV reactive device 162, ultraviolet
Reactor 162 also uses counter-flow designs, and waste liquid enters from 162 bottom of UV reactive device, is discharged at the top of UV reactive device 162.
In the shown embodiment, " the ozone contact reaction device 160+ UV reactive device of 3 grades of series connections is devised
162 ", and three outlets, respectively tail are devised the top of last UV reactive device 162 (top does not refer to topmost singly)
Gas discharge outlet, waste liquid outlet and foam solution overflow port.It does not participate in and generates in the ozone and advanced oxidation reaction process of reaction
The tail gas such as exhaust gas are discharged through the exhaust port of last UV reactive device 162, handle through ozone tail gas destructor 22 laggard
Row exhaust emissions.Treated waste liquid is emitted into downstream from top waste liquid outlet, and foam solution passes through ultraviolet anti-at last
Answer the overflow line L1 being arranged between 10 entrance of foam solution overflow port and exhausted bath box of device 162 return front end exhausted bath box 10 continue into
Row processing.
Ozone needed for advanced oxidation reaction is prepared by the anti-raw device 18 of ozone, and the feed oxygen for producing ozone is supplied by oxygen to be filled
20 offers are set, oxygen feedway 20 is oxygen cylinder or oxygenerator, preferably stores the oxygen cylinder of oxygen.It can also be according to live item
Part configures an oxygenerator, and oxygen is prepared in situ as raw material using air and generates ozone for ozone generator 18.
The ozone that ozone generator 18 generates is added by the suction line of each 160 bottom of ozone contact reaction device, instead
Answer process are as follows: from First ozone after waste liquid out is mixed with the ozone that ozone generator 18 comes out from 12 outlet of exhausted bath box pump
The bottom inlet of contact reactor 160 enters participation reaction, and mixed liquor after reaction is from First ozone contact reaction device 160
Top exit comes out, and enters participation reaction from the bottom inlet of First UV reactive device 162；
Mixed liquor after reaction comes out from the top exit of First UV reactive device 162, comes out with ozone generator 18
Ozone mix again after from the bottom inlet of second ozone contact reaction device 160 enter participation reaction, it is mixed after reaction
Liquid is closed to come out from the top exit of second ozone contact reaction device 160, from the bottom inlet of second UV reactive device 162 into
Enter to participate in reaction；
Mixed liquor after reaction comes out from second 162 top exit of UV reactive device, comes out with ozone generator 18
Ozone enters participation from the bottom inlet of third platform ozone contact reaction device 160 after mixing again and reacts, the mixing after reaction
Liquid comes out from the top exit of third platform ozone contact reaction device 160, enters from the bottom inlet of third platform UV reactive device 162
Reaction is participated in, the mixed liquor after reaction comes out from the top waste liquid outlet of third platform UV reactive device 162, into downstream system
System.The tail gas such as the exhaust gas generated in the ozone and advanced oxidation reaction process of reaction are not participated in through last UV reactive device
162 exhaust port discharge, carries out exhaust emissions after the processing of ozone tail gas destructor 22.The overflow that foam solution passes through setting
Pipeline L1, which is returned after front end exhausted bath box 10 stores, to be continued to handle.
Ozone contact reaction device 160 provides ozone and the catalytic condition of Organic substance in water ingredient, is that a pot type is held
Device, bottom are equipped with aeration plate (not shown go out), waste liquid and ozone and enter from container bottom, the tail gas and the waste liquid after reaction of generation
UV reactive device 162 is discharged into from container top.
UV reactive device 162 provides the condition of Organic substance in water ingredient photolysis, is a tank container, cloth in container
It is equipped with several ultraviolet lamp tubes (not shown go out), fluorescent tube is externally provided with quartz socket tube (not shown go out), convenient for cleaning and avoiding outside fluorescent tube
Wall fouling.The power of ultraviolet lamp can be adjusted with wavelength according to water quality situation.When being only provided with a UV reactive device 162
When, UV reactive device 162 uses " one into three goes out " set-up mode, and bottom is provided with an entrance and ozone contact reaction device 160
Top exit connection, top be equipped with waste liquid outlet, foam solution overflow port and exhaust port.Waste liquid outlet passes through pipeline
It is connect with downstream treatment systems, foam solution overflow port is connected to by overflow line L1 with 10 entrance of exhausted bath box, and exhaust port is logical
Pipeline is crossed to connect with ozone tail gas destructor 22.When being provided with more UV reactive devices 162, UV reactive device that front is arranged
162 are arranged using " one-in-and-one-out ", and an entrance is arranged in bottom, and one outlet is arranged in top, ultraviolet anti-positioned at last one
Answer device 162 then using " one into three goes out " set-up mode.
Since particulate matter may be contained from the waste liquid that upstream line is transported in exhausted bath box 10,12 need to be pumped in exhausted bath box
Front filter 14 is set on the pipeline between advanced oxidation processing unit 16, for being filtered processing to waste liquid, is prevented
Grain substance in advanced oxidation processing unit 16 ozone contact reaction device 160 and UV reactive device 162 destroy.It is illustrating
In embodiment, front filter 14 is arranged between 12 outlet of exhausted bath box pump and the entrance of First ozone contact reaction device 160
Pipeline on.
Monitoring case 26 be the container with certain volume, be set side by side there are two, one in use, another can carry out it is standby
With top entry is connect with the waste liquid outlet of last UV reactive device 162 in advanced oxidation processing unit 16, is used for
Temporary treated waste liquid, outlet at bottom are connect with monitoring case pump 28 by pipeline, and measuring tank pumps 28 as common liquid delivery pump,
For the waste liquid after emission treatment.By organic concentration to the waste liquid stored in monitoring case 26, activity concentration into
Row sampling analysis, and judged according to sampling analysis as a result, being operated to the next step of waste liquid, then pass through monitoring case pump 28
It is discharged:
If a) organic concentration in monitoring case 26, activity concentration are all satisfied requirement, directly pass through monitoring
Case pump 28 is discharged；
If b) organic concentration in monitoring case 26 is unsatisfactory for requiring, by 28 outlet of monitoring case pump and exhausted bath box
Return line L2 is set between 10 entrances, waste liquid is sent to exhausted bath box 10 and re-starts processing；
C) when in monitoring case 26 organic concentration meet the requirements, activity concentration is unsatisfactory for requiring, then passes through monitoring
Case pump 28, which is sent to power station traditional radioactive waste disposal unit, to be handled.
Further, in the waste liquid outlet and prison of last UV reactive device 162 of advanced oxidation processing unit 16
It is additionally provided with after-filter 24 between 26 entrance of measuring tank, for filtering the particulate matter generated in removal advanced oxidation reaction process,
Make enter monitoring case 26 in waste liquid it is as few as possible contain particulate matter.
It please refers to shown in Fig. 2, is second of embodiment of nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention
Structural schematic diagram, second of embodiment and the first embodiment are essentially identical, the difference is that, second of embodiment party
The implementation process of advanced oxidation processing unit 16 in formula is different, and in the shown embodiment, advanced oxidation processing unit 16 is wrapped
Include the UV-ozone contact reactor 164 of one or more series connection, the entrance of every UV-ozone contact reactor 164
Pipeline is connect with ozone generator 18.One or more levels ozone contact reaction being connected in series i.e. in the first embodiment
Device 160 and UV reactive device 162 can contact instead with one or more UV-ozone being connected in series in second of embodiment
Device 164 is answered to be interchangeable, the function of the two is similar, and set-up mode is also identical.
In advanced oxidation processing unit 16, waste liquid is at 164 inlet duct of UV-ozone contact reactor and from smelly
The ozone mixing of Oxygen Generator 18 enters UV-ozone contact reactor 164 together, and UV-ozone contact reactor 164 uses
Counter-flow designs, waste liquid enters from the bottom of UV-ozone contact reactor 164, from the top of UV-ozone contact reactor 164
Portion's discharge.
And according to water quality situation and processing requirement, a UV-ozone contact reactor 164 can be designed, may also set up more
The UV-ozone contact reactor 164 that platform is connected in series can when for more concatenated UV-ozone contact reactors 164
It is 2,3,4,5,6 or more.In the shown embodiment, design has the UV-ozone of 3 series connections to connect
Reactor 164 is touched, and there are three outlets, respectively exhaust emissions for design on last UV-ozone contact reactor 164
Mouth, waste liquid outlet, foam solution overflow port.The tails such as the exhaust gas generated in the ozone and advanced oxidation reaction process of reaction are not participated in
Gas is discharged through the exhaust port of last UV-ozone contact reactor 164, handles through ozone tail gas destructor 22 laggard
Row exhaust emissions.Treated waste liquid is emitted into downstream from waste liquid outlet, and foam solution is then by last UV-ozone
Overflow line L1 is set between 10 entrance of foam solution overflow port and exhausted bath box of contact reactor 164 and returns to the storage of front end exhausted bath box 10
Continue to handle after depositing.Ozone needed for advanced oxidation reaction is prepared by the anti-raw device 18 of ozone, produce the feed oxygen of ozone by
Oxygen feedway 12 provides, and the preferred oxygen cylinder of oxygen feedway, oxygen cylinder stores pure oxygen, can also according to field condition,
An oxygenerator is configured, oxygen is prepared in situ by raw material of air, and ozone is generated by 18 scene of ozone generator.Ozone is logical
It crosses the suction line addition of each 164 bottom of UV-ozone contact reactor and is contacted with after waste liquid mixing into UV-ozone
Reactor 164 participates in reaction.
In the shown embodiment, advanced oxidation processing unit 16 is provided with the UV-ozone contact of 3 series connections instead
Answer device 164, reaction process are as follows: the ozone of waste liquid and the ozone generator 18 come out from 12 outlet of exhausted bath box pump out mix after from
The bottom inlet of First UV-ozone contact reactor 164 enters UV-ozone contact reactor 164 and participates in reaction, reaction
Mixed liquor afterwards comes out from the top exit of First UV-ozone contact reactor 164, comes out with ozone generator 18 smelly
Enter participation reaction from the bottom inlet of second UV-ozone contact reactor 164 after oxygen mixing, mixed liquor after reaction from
The top exit of second UV-ozone contact reactor 164 comes out, from the after mixing with the ozone that ozone generator 18 comes out
The bottom inlet of three UV-ozone contact reactors 164 enters participation reaction, mixed liquor after reaction from third platform it is ultraviolet-
The top exit of ozone contact reaction device 164 comes out, into down-stream system.
The condition that UV-ozone contact reactor 164 provides ozone, ultraviolet light is reacted with Organic substance in water ingredient.Ultraviolet-
Ozone contact reaction device 164 is a tank container, and container bottom is equipped with aeration plate (not shown go out), is disposed in container several
Ultraviolet lamp tube (not shown go out), fluorescent tube is externally provided with quartz socket tube (not shown go out), convenient for cleaning and avoiding tube outer wall fouling.It is useless
Liquid and ozone enter from 164 bottom of UV-ozone contact reactor, and tail gas is arranged at the top of UV-ozone contact reactor 164
Out, the power of ultraviolet lamp can be adjusted with wavelength according to water quality situation.
When being only provided with a UV-ozone contact reactor 164, UV-ozone contact reactor 164 uses " one
Go out into three " set-up mode, bottom is provided with an entrance and the outlet of front filter 14 connects, and top is equipped with waste liquid outlet, bubble
Foam hydrorrhea head piece and exhaust port.Waste liquid outlet is connect by pipeline with downstream after-filter 24, and foam solution overflow port is logical
It crosses overflow line L1 to be connected to 10 entrance of exhausted bath box, exhaust port is connect by pipeline with ozone tail gas destructor 22.When setting
When being equipped with more UV-ozone contact reactors 164, the UV-ozone contact reactor 164 that front is arranged uses " one into one
It is arranged out ", an entrance is arranged in bottom, and one outlet is arranged in top, positioned at a last UV-ozone contact reactor
164 use " one into three goes out " set-up mode.
It should be noted that second of embodiment be in addition to advanced oxidation processing unit 16 is different, rest part it is specific
Implementation process is identical as the first embodiment, as space is limited, does not do repetition introduction herein.
Compared with the existing technology, nuclear power station radioactive liquid waste organic matter treating apparatus of the present invention is imitated with following Advantageous
Fruit:
1) by using " ozone oxidation+Ultraviolet Oxidation " technique, the organic components in radioactive liquid waste can be effectively removed；
2) during processing, without adding chemical agent, and ozone is not soluble in water, does not remain on liquid phase, entire to locate
Reason process will not introduce impurity, reduce the yield of secondary waste；
3) water quality that treated is suitable for evaporation, ion exchange and the nuclear power station conventionals radioactive liquid waste such as reverse osmosis processing；
4) safety, economy and the availability of the processing of radioactive liquid waste organic matter are improved, there is extensive market to answer
Use prospect.
According to above-mentioned principle, the present invention can also be made appropriate changes and modifications to the above embodiments.Therefore, this hair
It is bright to be not limited to specific embodiment disclosed and described above, some modifications and changes of the invention should also be as to fall into this
In the scope of protection of the claims of invention.In addition, although being used some specific terms in this specification, these terms
Merely for convenience of description, it does not limit the present invention in any way.
Claims (10)
1. a kind of nuclear power station radioactive liquid waste organic matter treating apparatus characterized by comprising
Exhausted bath box receives and stores waste liquid to be processed；
Exhausted bath box pump, entrance and exhausted bath box outlet connect, for providing power for waste liquid to be processed；
Advanced oxidation processing unit, entrance are connected by pipeline with exhausted bath box pump discharge；
Ozone generator, for generating ozone, entrance is connected with oxygen feedway, outlet and advanced oxidation processing unit entrance
Connection, oxygen feedway are used to provide oxygen for ozone generator；
Ozone tail gas destructor, entrance are connect with the exhaust port of advanced oxidation processing unit；
Monitoring case, entrance are connect with the waste liquid outlet of advanced oxidation processing unit, for temporary treated waste liquid；And
Monitoring case pump, entrance and monitoring case outlet connect, for the waste liquid after emission treatment.
2. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 1, which is characterized in that the advanced oxygen
Changing processing unit includes the ozone contact reaction device and UV reactive device that one or more levels is connected in series, every ozone contact reaction
The inlet duct of device is connect with ozone generator.
3. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 2, which is characterized in that the ozone connects
It touching reactor and uses counter-flow designs, waste liquid enters from ozone contact reaction device bottom, the discharge at the top of ozone contact reaction device, with
Waste liquid enters UV reactive device afterwards, and UV reactive device uses counter-flow designs, and waste liquid enters from UV reactive device bottom, from ultraviolet anti-
Answer discharge at the top of device.
4. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 1, which is characterized in that the advanced oxygen
Changing processing unit includes the UV-ozone contact reactor that one or more is connected in series, every UV-ozone contact reactor
Inlet duct connect with ozone generator.
5. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 4, which is characterized in that it is described it is ultraviolet-
Ozone contact reaction device uses counter-flow designs, and waste liquid enters from UV-ozone contact reactor bottom, contacts from UV-ozone
Reactor head discharge.
6. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 1, which is characterized in that the oxygen supplies
It is that oxygen cylinder or oxygenerator store oxygen when for oxygen cylinder in oxygen cylinder to device, when for oxygenerator, utilizes air
Oxygen is prepared in situ.
7. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 1, which is characterized in that the advanced oxygen
Change and is additionally provided with overflow line between the outlet and waste liquid tank inlet of processing unit.
8. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 1, which is characterized in that the exhausted bath box
Front filter is provided between pump discharge and advanced oxidation processing unit entrance.
9. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 8, which is characterized in that the monitoring case
After-filter is provided between entrance and the outlet of advanced oxidation processing unit.
10. nuclear power station radioactive liquid waste organic matter treating apparatus according to claim 1, which is characterized in that the detection
Return line is additionally provided between case pump discharge and waste liquid tank inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811209749.1A CN109166642A (en) | 2018-10-17 | 2018-10-17 | Nuclear power station radioactive liquid waste organic matter treating apparatus |
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| CN109849238A (en) * | 2019-03-28 | 2019-06-07 | 江苏核电有限公司 | A kind of radioactive spent resin grinding system with redundant apparatus |
| CN113113168A (en) * | 2021-03-03 | 2021-07-13 | 广东核电合营有限公司 | Nuclear power station waste liquid treatment system |
| CN114005569A (en) * | 2021-10-29 | 2022-02-01 | 华能核能技术研究院有限公司 | Low-radioactivity organic waste liquid treatment system |
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| CN114005569A (en) * | 2021-10-29 | 2022-02-01 | 华能核能技术研究院有限公司 | Low-radioactivity organic waste liquid treatment system |
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