CN109493988A - Core biochemical decontamination waste liquid pretreatment unit and processing method - Google Patents
Core biochemical decontamination waste liquid pretreatment unit and processing method Download PDFInfo
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- CN109493988A CN109493988A CN201811538984.3A CN201811538984A CN109493988A CN 109493988 A CN109493988 A CN 109493988A CN 201811538984 A CN201811538984 A CN 201811538984A CN 109493988 A CN109493988 A CN 109493988A
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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
- G21F9/20—Disposal of liquid waste
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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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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- 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
- G21F9/10—Processing by flocculation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a seed nucleus biochemical decontamination waste liquid pretreatment unit and processing methods, the core biochemical decontamination waste liquid pretreatment unit, including kinetic pump, flocculation reactor, centrifuge, water tank, chlorine residue elimination reaction device and the cavitation reactor being successively connected to by the road, wherein, the flocculation reactor is equipped with medicating mechanism, and the chlorine residue elimination reaction device includes sequentially connected pipeline type ultraviolet dechlorination device, active carbon dechlorination device, ormolu dechlorination device and modified resin dechlorination device.Core biochemical decontamination waste liquid pretreatment unit of the present invention, suitable for core biochemistry emergency event personnel, the pretreatment of equipment decontamination waste liquid, core biochemical decontamination waste liquid is pre-processed using the group technology of " flocculation+centrifugation+removal chlorine residue+cavitation ", realizes that big flux, the continuous processing liquid waste treatment system treatment effeciency of high load capacity decontamination waste liquid are high.
Description
Technical field
The invention belongs to liquid waste disposal technique fields, and in particular to a seed nucleus biochemical decontamination waste liquid pretreatment unit and processing
Method.
Background technique
Decontamination refers to through mechanical, method physically or chemically to chemical accident scene by chemical pollutant, radiation
Property substance and biological poison pollution ground, equipment, equipment, personnel, environment carries out disinfection, elimination is polluted and is sterilized and is taken
Technical process, it is a kind of effective ways for making danger lose toxic action, effectively prevent its sprawling diffusion, is to eliminate contamination
The important measures of body and contaminated area toxic hazard.
It needs in decontamination process using a large amount of decontaminants, including the disinfectant for eliminating chemical poison and biological warfare agent,
Such as three close two, caustic alkali and various disinfectant powders；For eliminating the remover of radioactive contamination, such as calgon, dodecane
Base benzene sulfonic acid sodium salt, citric acid etc.；For dissolving the solvent of above-mentioned disinfectant and remover, such as water, dichloroethanes, kerosene spit of fland.This
It the residue of a little decontaminants and its is difficult in a short time with the noxious material and nucleic generated after toxic agent, pathogenic microorganisms effect
Natural decomposition can cause prolonged serious pollution to battle field and urban environment, threaten the life and property peace of the people
Entirely.Therefore, it is necessary to be handled using reasonable technique these decontamination wastewaters, it is latent maximumlly to reduce or eliminate its bring
It is endangering.
Currently, being located at both at home and abroad for the research emphasis of core biochemical decontamination in the research and development of Decontamination and equipment, dress is solved
The problems such as Integration ofTechnology for setting, protection, mobility.But it for the subsequent processing of core biochemical decontamination waste liquid, solves secondary pollution and asks
The research contents of topic is less.Patent CN201965936U discloses a kind of radioactive dirty water emergency processing system with three proofings function
System, the system are combined using two steps ro, absorption, active carbon filtering, ultraviolet light, solve nucleic under the conditions of big flow
Interception and the low contradiction with miniaturization of adsorption efficiency；Patent CN105719717B discloses a kind of nuclear and chemical injury washing and cleaning waste water treatment process
And system, the system mainly by one reactor according of coagulating sedimentation, filter, multimedium efficient absorption tank, ion exchange softener,
The composition such as accurate filter, ultrafiltration membrane, reverse osmosis membrane, ion exchange softening protector, can modularization solution nuclear and chemical injury washing and cleaning waste water
Processing problem, depth, efficient process can be carried out simultaneously to nucleic waste water and decontamination wastewater under the conditions of different load；Patent
CN102930912A discloses a kind of exceeded radioactivity laundrywastes processing system, which removed in waste water by active carbon
Surfactant and small organic molecule, with zeolite filter to the radionuclide ion caesium and strontium in low-activity waste water
It is removed.
Core biochemical decontamination waste water treatment process mainly includes pretreatment, absorption and three parts of film process at present.But core
Biochemical decontamination waste liquid source item is complicated, closes second-class effective decontamination decontamination ingredients in addition to three, in order to increase the viscosity of liquid, in decontaminant
It also tends to add the organic matters such as a certain amount of surfactant, auxiliary agent, forms a kind of microemulsion, the COD of decontamination waste liquid is caused to reach
To 2000ppm, conductivity reach 50~100mS/cm, salt content reaches 10g/L, if without effective preconditioning technique, it is difficult
To meet the input condition of subsequent adsorbtion, film process even depth processing technique.And at present preconditioning technique mainly with coagulating sedimentation,
Based on filtering technique, waste liquid viscosity and COD value can not be effectively reduced, easily lead to the failure of subsequent adsorbtion material clumps, film process is set
Standby blocking, causes waste liquor treatment equipment integrated artistic performance seriously to reduce.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a seed nucleus biochemical decontamination waste liquid pretreatment unit,
Meet big flow, high load capacity and nucleic and biochemical decontamination waste liquid can be handled simultaneously.
The present invention is achieved by the following technical solutions:
One seed nucleus biochemical decontamination waste liquid pretreatment unit, including be successively connected to by the road kinetic pump, flocculation reactor, from
Scheming, water tank, chlorine residue elimination reaction device and cavitation reactor, wherein the flocculation reactor is equipped with medicating mechanism, described
Chlorine residue elimination reaction device includes sequentially connected pipeline type ultraviolet dechlorination device, active carbon dechlorination device, ormolu dechlorination
Device and modified resin dechlorination device.
In the above-mentioned technical solutions, the cavitation reactor is Hydrodynamic cavitation reactor.
In the above-mentioned technical solutions, the Hydrodynamic cavitation reactor includes:
Circular cylindrical cavity is inside equipped with a cylindrical cavity；
Multiple fluid inlet tubes are uniformly arranged on circular cylindrical cavity outer rim, are connected with circular cylindrical cavity；
Annular oriffice, it is concentric to be arranged in cylindrical cavity body；
Fluid outlet pipe is arranged in the shaft core position of circular cylindrical cavity, and is connected with circular cylindrical cavity；
Venturi tube structure, including expanding section and liquid outlet section, the bottom end small-caliber end of expanding section are connected to fluid and go out
On mouth pipe, the top large diameter end of expanding section is connected with liquid outlet section, the fluid outlet pipe, expanding section and liquid outlet section
Concentric setting.
In the above-mentioned technical solutions, the centrifuge is Horizontal helical type centrifuge.
In the above-mentioned technical solutions, the medicating mechanism includes flocculant medicinal cupping and dosing pump.
In the above-mentioned technical solutions, the entrance of the active carbon dechlorination device is provided with the first on-line detector；?
The exit of the modified resin dechlorination device is provided with the second on-line computing model.
In the above-mentioned technical solutions, the discharge outlet of the water tank is located at the top of side in order to clarify after precipitating is discharged
Liquid.
In the above-mentioned technical solutions, the filter that body refuse import is connected to the sewage draining exit of the centrifuge, the mistake
The purified liquor outlet of filter is connected to the separation clear liquid drainage of centrifuge.
In the above-mentioned technical solutions, the chlorine residue elimination reaction device includes controlled by the active carbon filter or copper
The other pipe of kirsite filter short circuit, and the water outlet of the controlled modified resin dechlorination device is connected to water tank
Return pipe.
In the above-mentioned technical solutions, ultraviolet wavelength is 280~300nm.
A kind of preprocess method of a seed nucleus biochemical decontamination waste liquid pretreatment unit according to, it is characterised in that: packet
Include following steps,
1) core biochemical decontamination waste liquid pass through first kinetic pump enter flocculation reactor carry out flocculation sedimentation, into reactor plus
Enter flocculant, rapid flocculation may be implemented under stirring, the suspended matter in waste liquid is made to form cluster precipitating；
2) flocculation suspension enters centrifuge and is separated by solid-liquid separation, and centrifuge separation clear liquid enters water tank and carries out subsequent place
Reason, centrifuge separation body refuse enter filter and are further separated by solid-liquid separation, and are separated by solid-liquid separation acquired solution and are discharged into water tank, with centrifuge separation
Clear liquid is handled together, and filtering solid contaminants are recycled wait post-process；
3) clarification waste liquid reduces decontamination waste liquid strong oxidizing property, protection by pumping into chlorine residue elimination reaction device in water tank
Subsequent film processing unit material；Reducing agent is added into reactor, while carrying out ultraviolet light irradiation, in reducing agent and ultraviolet photolysis
Chlorine residue in the lower removal core biochemical decontamination waste liquid of synergistic effect；
4) remove chlorine residue decontamination waste liquid go successively to cavitation reactor, by cavitation bubble crumble and fall energy degrade waste liquid in
Larger molecular organics and poisonous and harmful substance reduce waste liquid viscosity and COD value.
The flocculant is the Organic-inorganic composite cationic flocculant based on polyacrylamide, the throwing of flocculant
Dosage is 0.2%~0.6%, and reducing agent dosage is 5ppm.
The advantages and benefits of the present invention are:
Core biochemical decontamination waste liquid pretreatment unit of the present invention is washed suitable for core biochemistry emergency event personnel, equipment
Disappear the pretreatment of waste liquid, is carried out using the group technology of " flocculation+centrifugation+removal chlorine residue+cavitation " to core biochemical decontamination waste liquid pre-
Processing, instead of traditional " coagulating sedimentation+filtering " treatment process, be effectively reduced in core biochemical decontamination waste liquid a large amount of suspended matter with
Organic pollutant, on the one hand avoids the damage of suspended matter and organic matter to subsequent adsorbtion, film process equipment, which is
Continuous operation, while promoting decontamination liquid waste treatment system integrated artistic performance, realize big flux, high load capacity decontamination waste liquid it is continuous
The processing system that disposes waste liquid treatment effeciency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of core biochemical decontamination waste liquid pretreatment unit of the present invention.
Wherein:
1. water pump, 2. flocculation reactors, 2.1. flocculation reactor dosing mouth, 3. centrifuges, 4. water tanks, 5. chlorine residue removing
Reactor, 6. cavitation reactors, 7. filters, 8. filtering solid contaminants collecting boxs.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, combined with specific embodiments below furtherly
Bright technical solution of the present invention.
Embodiment 1
The one seed nucleus biochemical decontamination waste liquid pretreatment unit of the present embodiment, including the kinetic pump 1, solidifying being successively connected to by the road
Reactor 2, centrifuge 3, such as Horizontal helical type centrifuge, water tank 4, chlorine residue elimination reaction device 5 and cavitation reactor 6, wherein its
In, the flocculation reactor is equipped with medicating mechanism, and the chlorine residue elimination reaction device includes sequentially connected pipeline type ultraviolet
Dechlorination device, active carbon dechlorination device, ormolu dechlorination device and modified resin dechlorination device.Wherein, clear in water tank 4
Liquid is pumped into chlorine residue elimination reaction device via another kinetic pump 1, and sequentially enters subsequent cavitation reactor.
The entrance of the active carbon dechlorination device is provided with the first on-line detector；It dechlorinates and fills in the modified resin
The exit set is provided with the second on-line computing model.The chlorine residue elimination reaction device includes controlled by the active carbon filtering
Device or the other pipe of ormolu filter short circuit, and the water outlet of the controlled modified resin dechlorination device is connected to storage
The return pipe of water pot.By detection twice from beginning to end, it can be achieved that efficiency and quality are taken into account, treatment effect is improved, control is processed into
This.
Core biochemical decontamination waste liquid pretreatment unit of the present invention is washed suitable for core biochemistry emergency event personnel, equipment
Disappear the pretreatment of waste liquid, is carried out using the group technology of " flocculation+centrifugation+removal chlorine residue+cavitation " to core biochemical decontamination waste liquid pre-
Processing, instead of traditional " coagulating sedimentation+filtering " treatment process, be effectively reduced in core biochemical decontamination waste liquid a large amount of suspended matter with
On the one hand organic pollutant avoids the damage of suspended matter and organic matter to subsequent adsorbtion, film process equipment, while it is useless to promote decontamination
Liquid treating system integrated artistic performance realizes the continuous processing of big flux, high load capacity decontamination waste liquid.
Wherein, the cavitation reactor is Hydrodynamic cavitation reactor comprising: circular cylindrical cavity is inside equipped with a cylinder
The cavity of shape；Multiple fluid inlet tubes are uniformly arranged on circular cylindrical cavity outer rim, are connected with circular cylindrical cavity；Looping pit
Plate, it is concentric to be arranged in cylindrical cavity body；The shaft core position of circular cylindrical cavity, and and cylinder is arranged in fluid outlet pipe
Shape cavity is connected；Venturi tube structure, including expanding section and liquid outlet section, the bottom end small-caliber end of expanding section are connected to stream
On body outlet, the top large diameter end of expanding section is connected with liquid outlet section, the fluid outlet pipe, expanding section and liquid discharge
The mouth concentric setting of section.Structure design similar in Chinese patent 2017105748281 specifically can be used, do not repeat again specifically.
The medicating mechanism includes flocculant medicinal cupping and dosing pump, flocculant be based on polyacrylamide it is organic-
Inorganic compounding cationic flocculant.This is not repeated again herein similarly to the prior art.
Preferably, the discharge outlet of the water tank is located at the top of side in order to which clarified solution after precipitating, or pump is discharged
Extraction opening be arranged at top.
Embodiment 2
It further, further include filter 7 that body refuse import is connected to the sewage draining exit of the centrifuge, the filtering
The purified liquor outlet of device is connected to the separation clear liquid drainage of centrifuge.Solidifying suspension enters centrifuge and is separated by solid-liquid separation, and obtains
The body refuse of the formation such as clear liquid and suspended matter, colloid, mechanical admixture.Centrifuge separation clear liquid enters water tank and carries out subsequent processing, from
Heart separation body refuse enters filter and is further separated by solid-liquid separation, and filtering acquired solution is discharged into water tank, together with centrifuge separation clear liquid
Processing, filtering solid contaminants are recycled wait post-process.Online processing in real time is carried out using filter, cleaner liquid is directly carried out subsequent
Processing reduces waste and generates, avoids secondary pollution.
Embodiment 3
The preprocess method of one seed nucleus biochemical decontamination waste liquid pretreatment unit, includes the following steps,
Core biochemical decontamination waste liquid is discharged into flocculation reactor 2 by kinetic pump 1 and carries out flocculation sedimentation, passes through dosing mouth 2.1
0.4% organic inorganic compounding Cationic Polyacrylamide Flocculant is added into reactor, makees in the stirring of 200r/min
Under, suspended matter all flocculates in 2min, forms cluster precipitating.
2, flocculation suspension enters the Horizontal helical type centrifuge 3 of 4500r/min, and isolated clear liquid is discharged in water outlet, into storage
Water pot 4.The body refuse of the formation such as suspended matter, colloid, mechanical admixture is discharged in sewage draining exit, is further separated by solid-liquid separation into filter 7, mistake
Filter acquired solution is discharged into water tank 4, handles together with centrifuge separation clear liquid, and filtering solid contaminants are discharged into the recycling of collecting box 8 after
Processing.Be centrifuged again after flocculant flocculates, it can be achieved that average 91.4% coloration, 90.8% ss suspended solid and
82.5% COD separative efficiency.
3, it is sub- that reducing agent is added into reactor by pumping 1 into chlorine residue elimination reaction device 5 for clarification waste liquid in water tank 4
Sodium bisulfate 5ppm, while wavelength being used to be irradiated for the ultraviolet light of 280~300nm, it is cooperateed in reducing agent and ultraviolet photolysis
Chlorine residue in the lower removal core biochemical decontamination waste liquid of effect, chlorine residue place to go rate reach 99.7%.
4, remove chlorine residue decontamination waste liquid go successively to cavitation reactor 6, by cavitation bubble crumble and fall energy degrade waste liquid
Middle larger molecular organics and poisonous and harmful substance reduce waste liquid viscosity and COD value.
Pollutant kind and its existence form, the equal energy of the hydraulic characteristic(s) of waste liquid for being included by pretreated decontamination waste liquid
Enough meet the input requirements of subsequent adsorbtion, film process unit, will not cause damages to subsequent processing device.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (11)
1. a seed nucleus biochemical decontamination waste liquid pretreatment unit, it is characterised in that: including be successively connected to by the road kinetic pump, flocculation
Reactor, centrifuge, water tank, chlorine residue elimination reaction device and cavitation reactor, wherein the flocculation reactor is equipped with chemicals feeder
Structure, the chlorine residue elimination reaction device include sequentially connected pipeline type ultraviolet dechlorination device, active carbon dechlorination device, copper zinc
Alloy dechlorination device and modified resin dechlorination device.
2. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 1, it is characterised in that: the cavitation is anti-
Answering device is Hydrodynamic cavitation reactor.
3. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 2, it is characterised in that: the waterpower is empty
Changing reactor includes:
Circular cylindrical cavity is inside equipped with a cylindrical cavity；
Multiple fluid inlet tubes are uniformly arranged on circular cylindrical cavity outer rim, are connected with circular cylindrical cavity；
Annular oriffice, it is concentric to be arranged in cylindrical cavity body；
Fluid outlet pipe is arranged in the shaft core position of circular cylindrical cavity, and is connected with circular cylindrical cavity；
Venturi tube structure, including expanding section and liquid outlet section, the bottom end small-caliber end of expanding section are connected to fluid outlet pipe
On, the top large diameter end of expanding section is connected with liquid outlet section, and the fluid outlet pipe, expanding section and liquid outlet section are coaxial
Heart setting.
4. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 1, it is characterised in that: the centrifuge
For Horizontal helical type centrifuge.
5. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 1, it is characterised in that: the chemicals feeder
Structure includes flocculant medicinal cupping and dosing pump.
6. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 1, it is characterised in that: in the active carbon
The entrance of dechlorination device is provided with the first on-line detector；The exit of the modified resin dechlorination device is provided with second
On-line computing model.
7. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 1, it is characterised in that: the water tank
Discharge outlet be located at the top of side in order to which clarified solution after precipitating is discharged.
8. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 1, it is characterised in that: body refuse import and institute
The filter of the sewage draining exit connection for the centrifuge stated, the purified liquor outlet of the filter are connected to the separation clear liquid row of centrifuge
Outlet.
9. seed nucleus biochemical decontamination waste liquid pretreatment unit according to claim 6, it is characterised in that: the chlorine residue is de-
Except reactor includes the controlled other pipe that the active carbon filter or ormolu filter is short-circuit, and will be controlled described
The water outlet of modified resin dechlorination device be connected to the return pipe of water tank.
10. a kind of pretreatment side of -9 described in any item seed nucleus biochemical decontamination waste liquid pretreatment units according to claim 1
Method, it is characterised in that: include the following steps,
1) core biochemical decontamination waste liquid pass through first kinetic pump enter flocculation reactor carry out flocculation sedimentation, into reactor be added wadding
Solidifying agent, may be implemented rapid flocculation under stirring, and the suspended matter in waste liquid is made to form cluster precipitating；
2) flocculation suspension enters centrifuge and is separated by solid-liquid separation, and centrifuge separation clear liquid enters water tank and carries out subsequent processing, from
Heart separation body refuse enters filter and is further separated by solid-liquid separation, and is separated by solid-liquid separation acquired solution and is discharged into water tank, with centrifuge separation clear liquid
It handles together, filtering solid contaminants are recycled wait post-process；
3) clarification waste liquid reduces decontamination waste liquid strong oxidizing property, protects subsequent by pumping into chlorine residue elimination reaction device in water tank
Film process unit material；Reducing agent is added into reactor, while carrying out ultraviolet light irradiation, is cooperateed in reducing agent and ultraviolet photolysis
Chlorine residue in the lower removal core biochemical decontamination waste liquid of effect；
4) remove chlorine residue decontamination waste liquid go successively to cavitation reactor, by cavitation bubble crumble and fall energy degrade waste liquid in divide greatly
Sub- organic matter and poisonous and harmful substance reduce waste liquid viscosity and COD value.
11. preprocess method as claimed in claim 10, which is characterized in that flocculant be based on polyacrylamide it is organic-
Inorganic compounding cationic flocculant, the dosage of flocculant are 0.2%~0.6%, and reducing agent dosage is 5ppm.
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| CN201811538984.3A CN109493988B (en) | 2018-12-14 | 2018-12-14 | Nuclear biochemical decontamination waste liquid pretreatment device and treatment method |
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| CN201811538984.3A CN109493988B (en) | 2018-12-14 | 2018-12-14 | Nuclear biochemical decontamination waste liquid pretreatment device and treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114255899A (en) * | 2020-09-21 | 2022-03-29 | 西南科技大学 | Novel method for deeply purifying high-temperature gas cooled reactor core preparation process wastewater by utilizing enhanced flocculation sedimentation-advanced oxidation combined process |
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