CN110787531A - Radioisotope wastewater treatment system - Google Patents
Radioisotope wastewater treatment system Download PDFInfo
- Publication number
- CN110787531A CN110787531A CN201911098147.8A CN201911098147A CN110787531A CN 110787531 A CN110787531 A CN 110787531A CN 201911098147 A CN201911098147 A CN 201911098147A CN 110787531 A CN110787531 A CN 110787531A
- Authority
- CN
- China
- Prior art keywords
- wastewater
- radioisotope
- water
- waste
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
- B01F33/8305—Devices with one shaft, provided with mixing and milling tools, e.g. using balls or rollers as working tools; Devices with two or more tools rotating about the same axis
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/006—Radioactive compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Nuclear Medicine (AREA)
Abstract
The invention discloses a radioactive isotope wastewater treatment system, and belongs to the technical field of radioactive isotope wastewater treatment. The key points of the technical scheme are as follows: the device comprises a separation tank for separating solid waste in wastewater, a plurality of radioisotope wastewater attenuation tanks, a plurality of waste storage chambers, a stirring device and a collecting device, wherein the stirring device is arranged in the separation tank; a plurality of radioisotope waste water attenuation ponds all are equipped with the drain pipe of drainage usefulness, and through water piping connection between a plurality of radioisotope waste water attenuation ponds and the separation tank, wait to detect qualified back, discharge the waste water in radioisotope waste water attenuation pond through opening the drain pipe. The invention can realize the purpose of synchronously treating the wastewater with radioactivity and the solid waste, is suitable for treating the radioisotope wastewater, and can effectively reduce the pollution of the solid waste and the wastewater to the environment.
Description
Technical Field
The invention relates to the technical field of radioisotope wastewater treatment, in particular to a radioisotope wastewater treatment system.
Background
With the development of the application of radioactive isotopes in various fields, large radioactive isotope pollution or radioactive isotope-containing garbage is also generated, and particularly, medical garbage containing radioactive isotopes is generated in the process of using radioactive isotopes, such as excrement of examinees, patients and medical staff, and masks, treatment towels, paper diapers, gloves and the like, which are radioactive, the garbage and wastewater containing radioactive isotopes are treated, a special garbage can is generally adopted for collection and storage, the garbage and the wastewater are treated after decay is qualified, and a wastewater pool and a self-overflow type are adopted for attenuation and treatment for the treatment of radioactive isotope wastewater, and then the wastewater is discharged in a self-overflow type manner.
However, the liquid with radioactive isotopes will be mixed new and old in the self-overflow discharge process, so that the finally discharged radioactive isotope waste water is unqualified, the solid waste doped in the waste water cannot be solved, and further, the solid waste with radioactivity can enter the waste water treatment tank, the difficulty of cleaning is increased, the solid waste can be gradually accumulated in the waste water treatment tank after the accumulation of time, the blockage of the waste water treatment tank is caused, the water storage amount of the waste water tank is reduced, and even the treatment effect of the waste water can be seriously influenced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a radioisotope wastewater treatment system, which is suitable for treating radioisotope wastewater and solid waste, and can effectively avoid the pollution of the solid waste to the environment.
The technical purpose of the invention is realized by the following technical scheme:
a radioisotope wastewater treatment system, comprising:
a separation tank for separating solid waste in the wastewater;
a plurality of radioisotope wastewater attenuation tanks for storing wastewater;
a waste storage chamber for storing solid waste separated from the waste water;
the stirring device is arranged in the separation tank and is used for smashing solid wastes in the wastewater;
a collecting device for collecting the crushed solid waste;
the separation tank is internally provided with an inclined plane sedimentation structure for settling the solid waste crushed by the stirring device so as to enable the crushed solid waste to enter the collection device;
a plurality of radioisotope waste water attenuation pond all is equipped with the drain pipe of drainage usefulness, and is a plurality of be connected with the inlet tube between radioisotope waste water attenuation pond and the separation tank to make waste water can get into through the inlet tube the separation tank with discharge through the drain pipe radioisotope waste water attenuation pond.
By adopting the technical scheme, the wastewater and the solid waste are firstly discharged into the separation tank, the solid waste is stirred and crushed by the stirring device, the wastewater in the separation tank forms a water vortex in the stirring process of the stirring device, the solid waste in the separation tank can be rapidly settled to the bottom of the separation tank under the action of the inclined plane settlement structure, and the wastewater in the tank is discharged into the radioactive isotope wastewater attenuation tank through the water discharge pipe; the solid waste settled to the bottom of the separation tank enters a collecting device, the solid waste of the collecting device is transferred to a waste storage chamber for storing attenuation by the collection of the collecting device and the external transportation, and after the solid waste is detected to be qualified, the waste water and the solid waste are respectively discharged; the treatment system can treat both waste water and solid waste, has a better treatment function, combines the treated solid waste with the waste water, avoids radioactive irradiation to treatment personnel during manual treatment, and avoids waste of manpower and resources; the inclined plane sedimentation structure in the separation tank is matched with the stirring device, so that solid waste in the wastewater can be treated; can avoid solid waste directly to discharge to the radio isotope waste water decay pond along with waste water and can appear piling up of solid waste, and then need artifical clearance. Realize the purpose that synchronous processing has radioactive waste water and solid waste on the whole, can be applicable to the waste water treatment of hospital radiology department, can effectually avoid waste water, solid waste to environment and staff's pollution.
Preferably, the stirring device comprises a stirring rod with a stirring blade at the end and a first driving piece, the first driving piece is used for driving the stirring rod and the stirring blade to rotate, and the output end of the first driving piece is fixedly connected with the stirring rod.
Through adopting above-mentioned technical scheme, stirring vane rotates under the drive of first driving piece, make waste water form the rivers vortex in the pond, and can smash the solid waste in the waste water, make soluble solid and insoluble solid separation in the solid waste, like the soluble solid dispersion of this kind of people's excrement and urine in waste water, discharge to the decay pond along with the inside rivers that forms of separation pond, like this kind of insoluble solid of toothbrush then sink to the separation pond bottom under the effect of rivers and self gravity, get into collection device, a structure is simple, has better separation function, can carry out simple separation with solid waste.
Preferably, the inclined plane settlement structure comprises:
the inclined slope is arranged at the bottom of the separation tank so that the inside of the separation tank is of a structure with a large top and a small bottom;
a separation filter plate for isolating solid waste in the wastewater in the separation tank; the separation filter plate is arranged between two sides of the separation tank and is arranged along the inclined plane of the inclined plane slope; the separation filter plate is provided with meshes, wastewater is discharged into the radioisotope wastewater attenuation tank through the water inlet pipe after being separated from solid waste by the separation filter plate, and the solid waste is descended to the bottom of the separation tank under the action of the slope and water flow in the separation tank and then enters the collection device.
By adopting the technical scheme, the inclined slope is provided with the inclined plane, so that the inside of the separation tank is in a shape with a large top and a small bottom, the wastewater forms a water flow vortex under the stirring of the stirring device, the solid waste in the wastewater is driven by the water flow to quickly reach the bottom of the separation tank along the internal structure formed by the separation tank and the inclined slope, and the wastewater is discharged from the meshes of the separation filter plate and then discharged to the radioisotope wastewater attenuation tank through the water inlet pipe; compared with the sedimentation effect in a natural state, the inclined plane sedimentation mechanism can accelerate the sedimentation of solid wastes, avoid overlong treatment time and improve the treatment effect of the treatment system.
Preferably, the collecting device comprises a solid-liquid separating mechanism for treating the solid waste precipitated to the bottom of the separating tank.
By adopting the technical scheme, the solid waste settled to the bottom of the separation tank carries the waste water, and the burden of post-treatment on the solid waste can be increased if the solid waste is directly collected and stored, so that the solid waste is subjected to solid-liquid separation before being stored, and the waste water in the solid waste is discharged as much as possible; the bottom of the separation tank is communicated with the solid-liquid separation mechanism through a pipeline, the part of solid waste carrying the wastewater is discharged to the solid-liquid separation mechanism, and the solid waste is treated by the solid-liquid separation mechanism and then is stored.
Preferably, the solid-liquid separation mechanism includes:
the bottom of the separation tank is communicated with the trommel screen through a pipeline and used for discharging the solid waste and the wastewater to the trommel screen, and the trommel screen can discharge the wastewater from the screen holes and discharge the solid waste along the opening of the trommel screen;
the output end of the second driving piece is connected to the bottom of the drum screen and used for driving the drum screen to rotate;
the driving piece is fixed at one end of the mounting bracket, the rotary screen is connected between the mounting brackets and positioned below the second driving piece, and the rotary screen is obliquely arranged below the separation tank through the mounting brackets;
the water receiving tank is used for receiving wastewater falling from the drum screen, is arranged below the drum screen and can be communicated with the radioisotope wastewater attenuation pool through a pipeline and a control valve;
the roller screens are arranged on the mounting bracket, and the periphery of the openings of the drum screens are connected with the rollers.
Through adopting above-mentioned technical scheme, adopt the drum sieve to handle solid-liquid separation, carry the solid waste discharge of waste water into the drum sieve, the drum sieve carries out the circumference rotation under the effect of second driving piece, the drum sieve rotates and discharges waste water, waste water arranges to the water receiving tank through the mesh of drum sieve, the solid waste in the section of thick bamboo then discharges from its opening part along the decurrent drum sieve of slope, can also collect the solid waste that the drum sieve discharged through the machine through artifical the collection, move it to deposit in the waste storage room.
Preferably, the collecting device further comprises a conveying mechanism, and the conveying mechanism is used for conveying and storing the solid waste separated by the solid-liquid separating mechanism.
Through adopting above-mentioned technical scheme, the solid waste who handles through solid-liquid separation mechanism adopts transport mechanism to collect and transport, and the input of reduction manpower that can be very big, and comparatively safe to the human body can improve the holistic treatment effeciency of processing system.
Preferably, the transportation mechanism includes:
the conveying track is arranged below the solid-liquid separation mechanism, the position corresponding to the rotary screen is set as a receiving station, and the positions at two ends of the conveying track are set as waiting stations;
the collecting barrels are used for receiving the solid waste falling from the drum screen, and the solid waste in the collecting barrels can be discharged after the collecting barrels are detected to be qualified;
and the third driving piece is used for driving the collecting barrel to move back and forth between the receiving station and the waiting station of the conveying track.
By adopting the technical scheme, the third driving piece drives the collecting barrel to move on the conveying rail during collection and moves to the receiving station to receive the solid waste, when the collecting barrel to be detected is full, the third driving piece drives the collecting barrel to move to the waiting station, then the bottom of the collecting barrel is opened, and the solid waste is discharged; when the collecting barrel leaves the receiving station, the other collecting barrel moves to the receiving station, and the solid waste is received and conveyed alternately in sequence.
Preferably, the system further comprises a spare pool arranged adjacent to the radioisotope wastewater attenuation pool, wherein the spare pool is respectively communicated with the radioisotope wastewater attenuation pool and the separation pool through a water pipe provided with a water inlet valve and is used for storing excessive wastewater to be treated.
By adopting the technical scheme, the standby pool can discharge the wastewater to the standby pool through the water pipe for storage under the conditions that the radioactive isotope wastewater attenuation pool does not discharge water and no other space is used for storing water; secondly, the reserve tank also can regard as the maintenance pond to use, when radioisotope waste water decay pond need overhaul or maintain, accessible water pipe is discharged waste water to the reserve tank in, has the effect of better interim deposit waste water, can provide better maintenance space for the maintenance personal.
Preferably, the system further comprises a control system, a water inlet valve and a water discharge valve are respectively arranged on a water inlet pipe and a water discharge pipe of the radioisotope wastewater attenuation pool, a plurality of radioisotope wastewater attenuation pools are respectively provided with the ultra-liquid level alarm and the radioactive detector, and the water inlet valve, the water discharge valve, the ultra-liquid level alarm and the radioactive detector are all connected with the control system.
Through adopting above-mentioned technical scheme, the intake and the drainage of each radioisotope waste water decay pond are controlled through control system on the whole, can detect the deposit water condition in the pond through the super liquid level alarm, reach the purpose of in time control intake or drainage and leak protection liquid, can realize automated inspection and automated control on the whole and discharge the advantage of waste water.
Preferably, the super-liquid level alarm in the radioisotope wastewater attenuation tank comprises:
the first liquid level alarm is used for transmitting liquid level information to the control system when the water quantity in the tank reaches a preset value of the first liquid level alarm, and the control system correspondingly controls a water inlet valve on a water inlet pipe of the radioisotope wastewater attenuation tank to be closed to stop water inlet;
and the second liquid level alarm is used for detecting the amount of wastewater in the tank after a water inlet valve on a water inlet pipe of the radioisotope wastewater attenuation tank is closed, and transmitting liquid level information to the control system to alarm when the amount of wastewater is lower than the preset value of the second liquid level sensor.
By adopting the technical scheme, the first liquid level alarm is used for detecting the water storage condition in the pool, the preset value of the first liquid level alarm is the maximum value of the water storage quantity in the pool, the preset value of the first liquid level alarm can be set through the capacity of the actually set attenuation pool, when the water level in the pool reaches the maximum value, the first liquid level alarm outputs a high liquid level signal to the control system, the water inlet is stopped, and the condition that liquid at the top in the pool overflows can be avoided; the second liquid level alarm begins to detect when the water level reaches the maximum value in the pond, and the default of second liquid level alarm is according to the moisture evaporation capacity that can allow in the pond and sets up, if: if the preset value of the first liquid level alarm is 20cm, the preset value of the second liquid level alarm can be set to be 19cm according to the conditions of the pool and the wastewater; after closing into water in the pond, the second liquid level alarm detects behind the default that waste water volume is less than the second liquid level alarm in the pond, and the second liquid level alarm passes to control system with information and carries out the weeping and report to the police to in time overhaul of staff, serious weeping accident can be avoided appearing in first liquid level alarm cooperation second liquid level alarm.
In conclusion, the invention has the following beneficial effects:
1. through the arrangement of the radioisotope wastewater attenuation tank, the waste storage chamber, the separation tank, the inclined plane sedimentation structure, the stirring device and the collection device, the treated solid waste and the wastewater are combined for treatment, so that the waste of manpower and the waste of resources are avoided; the inclined plane sedimentation structure in the separation tank is matched with the stirring device, so that solid waste in the wastewater can be treated; can avoid solid waste directly to discharge to the radio isotope waste water decay pond along with waste water and the pile up of solid waste probably appears, and then need the condition that the manual work cleared up radio isotope waste water decay pond, be applicable to the processing of radioactive waste water and solid waste.
2. Through the arrangement of the slope and the separation filter plate, the solid waste in the wastewater rapidly reaches the bottom of the separation tank along the internal structure formed by the separation tank and the slope under the driving of water flow, and the wastewater is discharged from the meshes of the separation filter plate and then discharged to the radioisotope wastewater attenuation tank through the water inlet pipe; compared with the sedimentation effect in a natural state, the inclined plane sedimentation mechanism can accelerate the sedimentation of the solid waste, avoid the overlong treatment time and improve the treatment effect of the treatment system.
3. Through the arrangement of the solid-liquid separation mechanism and the transportation mechanism, the solid-liquid separation is carried out on the solid waste before the solid waste is stored, and the wastewater in the solid waste is discharged as much as possible; the bottom of the separation tank is communicated with the solid-liquid separation mechanism through a pipeline, the part of solid waste carrying the wastewater is discharged to the solid-liquid separation mechanism, and is treated by the solid-liquid separation mechanism and then the conveying mechanism, so that the labor investment can be greatly reduced, the human body is safer, and the overall treatment efficiency of the treatment system can be improved.
Drawings
FIG. 1 is a schematic view of the overall arrangement of a radioisotope wastewater attenuation tank and a separation tank in accordance with the present invention;
FIG. 2 is a schematic plan view of the piping connections of the treatment tank of the present invention;
FIG. 3 is an enlarged schematic view of area A of FIG. 1;
FIG. 4 is a schematic cross-sectional view of a-a of FIG. 2;
FIG. 5 is a schematic structural view of a solid-liquid separation mechanism of the present invention;
FIG. 6 is a schematic structural view of the solid-liquid separation mechanism and the transportation mechanism of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
The first embodiment is as follows:
as shown in fig. 1 and 2, the present embodiment provides a radioisotope wastewater treatment system for treating radioactive wastewater and solid waste, which includes a plurality of radioisotope wastewater attenuation tanks 2, a waste storage chamber 3, a separation tank 1, a slant settling structure 4, a stirring device 5, and a collecting device 6. Radioisotope waste water attenuation pond 2 establishes to three, three radioisotope waste water attenuation pond 2 arranges along the straight line, separation tank 1 sets up the upper reaches at three radioisotope waste water attenuation pond 2, still be equipped with intake chamber 101 in the upper reaches of separation tank 1, intake chamber 101, waste storage chamber 3 sets up the one end of keeping away from radioisotope waste water attenuation pond 2 at separation tank 1, set up side by side with waste storage chamber 3, intake chamber 101, separation tank 1 arranges along the straight line is adjacent with radioisotope waste water attenuation pond 2. A drainage tank 13 is arranged at the downstream position of the radioisotope wastewater attenuation tank 2.
The top walls of the water inlet tank 101, the separation tank 1, the radioisotope wastewater attenuation tank 2 and the water drainage tank 13 are all provided with biogas exhaust pipes, and the cross sections of the biogas exhaust pipes along the length direction are S-shaped so as to avoid linear irradiation of radioactive rays in the tanks and achieve an explosion-proof effect.
A liquid level sensor and a radioactive detector are arranged in the radioactive isotope wastewater attenuation pool 2, a radioactive detector is arranged in the waste storage chamber 3, a liquid level sensor is arranged in the separation pool 1, and the radioactive detector is typically an X and gamma radiation detector. The water inlet tank 101 is communicated with the separation tank 1 through a water pipe provided with a water inlet valve, the three radioisotope wastewater attenuation tanks 2 are respectively communicated with the separation tank 1 through a water inlet pipe 10 provided with a water inlet valve, the three radioisotope wastewater attenuation tanks 2 are respectively connected with a water discharge pipe 11 provided with a water discharge valve and a water suction pump 12, the water suction pump 12 is installed at the side position of the water discharge tank 13, and a water outlet pipe of the water suction pump 12 is communicated with the water discharge tank 13.
In order to control the drainage conveniently, a PLC control system is adopted to control the drainage, and the ultra-liquid level alarm, the radioactivity detector, the water pump 12, the water inlet valves and the water discharge valves are all connected with the controller and the PLC control system. The super liquid level alarm in three radioisotope waste water attenuation pond 2 includes first liquid level alarm and second liquid level alarm, liquid level alarm among the prior art and the water level controller of collocation are all adopted to first liquid level alarm and second liquid level alarm, first liquid level alarm is mainly used for detecting the deposit water condition in the pond, the default of first liquid level alarm is the maximum value of pond deposit water yield, the default that can set up first liquid level alarm is carried out through the capacity in the attenuation pond of actual setting, when pond water level reached the maximum value, first liquid level alarm will high liquid level signal output to control system, and then stop into water, can avoid the condition that top liquid spills over in the pond. The second liquid level alarm begins to detect when the pond water level reaches the maximum value, and the default of second liquid level alarm is according to the moisture evaporation capacity that can allow in the pond and sets up, if: if the preset value of the first liquid level alarm is 20cm, the preset value of the second liquid level alarm can be set to be 19cm according to the conditions of the pool and the wastewater; after closing into water in the pond, the second liquid level alarm detects behind the default that waste water volume is less than the second liquid level alarm in the pond, and the second liquid level alarm passes to control system with information and carries out the weeping and report to the police to in time overhaul of staff, can avoid appearing serious weeping accident.
The super liquid level alarm can transmit the liquid level in the pool to the PLC control system, the liquid level value is displayed on a display screen of the PLC control system, similarly, the radioactivity detector displays the detected activity value on the display screen of the PLC control system, and when the activity value reaches the discharge standard, the PLC control system starts a drain valve and a water suction pump 12 of the radioisotope wastewater attenuation pool 2 to drain water. For a specific water inlet and drainage method of the radioisotope wastewater attenuation tank 2, reference may be made to an automatic control method for treating hospital radioactive wastewater disclosed in patent publication No. CN101020585A, which is not described herein again.
As shown in fig. 3 and 4, a slope settling structure 4 is provided in the separation tank 1 to settle the solid waste crushed by the stirring means 5 so that the crushed solid waste enters the collecting means 6. Specifically, inclined plane settlement structure 4 is including inclined plane slope 401 and separation filter 402, and inclined plane slope 401 is right angle mitsubishi column, and it has the right angle portion, and the bottom and the lateral part setting of right angle portion laminating separation tank 1, its one side that has the inclined plane make separation tank 1 inside form be big-end-up and small-end-down and the cross section be the funnel structure of rectangle. The partition filter plate 402 is provided with mesh holes for isolating solid waste in the wastewater in the separation tank 1. The lower end of the separation filter plate 402 is arranged along the inclined plane of the inclined plane slope 401, the upper end of the separation filter plate is arranged close to the opening of the separation tank 1, the separation filter plate 402 is arranged between two sides of the separation tank 1, and a water bin 102 and a stirring bin 103 are formed between the separation filter plate and the side wall of the separation tank 1. The wastewater is separated from the solid waste by the mesh of the separation filter plate 402, enters the sump 102, and is then discharged into the radioisotope wastewater attenuation tank 2 through the water inlet pipe 10.
The stirring device 5 is arranged inside the separation tank 1 and is mainly used for smashing solid wastes in the wastewater. Specifically, agitating unit 5 sets up in the stirring storehouse 103 of separation tank 1, and agitating unit 5 is including puddler 502 and first driving piece 503, and puddler 502 tip is equipped with stirring vane 501, and first driving piece 503 is used for driving puddler 502 and stirring vane 501 to rotate, and first driving piece 503 adopts step motor, and step motor's output and puddler 502 keep away from stirring vane 501 another tip fixed connection. The stepping motor is arranged at the opening of the separation tank 1 through a bracket, and the stirring rod 502 and the stirring blade 501 of the stepping motor are positioned in the stirring bin 103 of the separation tank 1. Stirring vane 501 rotates under stepper motor's drive, makes the quick flow of the inside waste water of separation tank 1 form rivers vortex to make solid waste move to the separation tank bottom along the inclined plane slope 401 of separation tank, and can smash the soluble solid of the solid waste in the waste water at stirring vane 501 fast rotating's in-process, and then this part of fixed waste of insolubility sinks to separation tank 1 bottom through the violent rivers effect in inclined plane slope 401 and separation tank 1, reentrant collection device 6.
In this embodiment, the collecting device 6 is disposed at the bottom of the separation tank 1, and is communicated with the separation tank 1. Specifically, the collecting device 6 includes a collecting sieve 601 and a water collecting tank 602, the collecting sieve 601 is sleeved in the water collecting tank 602, the collecting sieve 601 is used for collecting broken solid waste, the water collecting tank 602 is communicated with the radioisotope wastewater attenuation tank 2 through a water pipe provided with a water inlet valve, and wastewater falls into the water collecting tank 602 through the collecting sieve 601 and is discharged to the radioisotope wastewater attenuation tank 2 along with the water pipe.
Wherein, agitating unit 5 is opened or is closed by the control of PLC control system, and is concrete, waste water and solid waste pass through the pipeline and arrange to intake chamber 101, arrange to separation tank 1 again, treat after the liquid level in the separation tank 1 reachs a take the altitude, open agitating unit 5 through PLC control system, agitating unit 5 smashes solid waste, and then subsides to collection device 6 under the effect of the inclined plane settlement structure 4 of separation tank 1, the waste water sees through the mesh of separating filter 402 and gets into sump 102 among the stirring process, and then discharges into radioisotope waste water attenuation pond 2 from the inlet tube 10 of sump 102. Specifically, when a certain amount of solid waste is collected, the water inlet valve and the stirring device between the water inlet tank 101 and the separation tank 1 can be closed, the water inlet valve between the water collection tank 602 and the radioisotope wastewater attenuation tank 2 is opened, wastewater in the water collection tank 602 is discharged to the radioisotope wastewater attenuation tank 2 through the water inlet pipe 10, and then the collection screen 601 is taken out through an external machine and transported to the waste storage chamber 3 for storage.
In a preferred embodiment, a spare tank 9 is provided on the same side of the three radioisotope wastewater attenuation tanks 2 for storing excess wastewater to be treated, and the spare tank 9 also provides space for maintenance and inspection by service personnel. The standby pool 9 and the radioisotope wastewater attenuation pool 2 are arranged adjacently, the standby pool 9 is respectively communicated with the three radioisotope wastewater attenuation pools 2 and the separation pool 1 through water pipes provided with water inlet valves and pumps water through a second water pump 13, and the second water pump 13 can be arranged in the standby pool and used for pumping water; the drain of the standby tank 9 is connected to a first suction pump 12 for draining. The standby pool 9 can discharge the wastewater to the standby pool 9 through a water pipe for storage under the condition that the radioisotope wastewater attenuation pool 2 does not discharge water and no other space is used for storing water; secondly, reserve pond 9 also can regard as the maintenance pond to use, when radioactive isotope waste water attenuation pond 2 need overhaul or maintain, the water pipe of intercommunication between accessible radioactive isotope waste water attenuation pond 2 and the reserve pond 9 is arranged waste water to reserve pond 9 in, has the effect of better interim deposit waste water, makes things convenient for staff's maintenance.
The embodiment can combine the solid waste treatment with the wastewater treatment, thereby avoiding the waste of manpower and resource; the inclined plane sedimentation structure 4 in the separation tank 1 is matched with the stirring device 5, so that solid waste in the wastewater can be treated; the condition that solid waste is directly discharged into the radioactive isotope waste water attenuation pool 2 along with waste water and the solid waste is likely to accumulate can be avoided, and then the radioactive isotope waste water attenuation pool 2 needs to be cleaned manually, so that the radioactive isotope waste water attenuation pool is suitable for treating radioactive waste water and solid waste. Compared with the sedimentation effect in the natural state, the inclined plane sedimentation structure 4 can accelerate the sedimentation of solid wastes, avoid overlong treatment time and improve the treatment effect of the treatment system.
Example two
As shown in fig. 5, the present embodiment is different from the first embodiment in that the structure of the collecting device 6 is different, and in the present embodiment, the collecting device 6 includes a solid-liquid separation mechanism 7, which is mainly used for treating the solid waste settled to the bottom of the separation tank 1. The bottom of the separation tank 1 is communicated with a solid-liquid separation mechanism 7 through a pipeline provided with a water inlet valve, the part of solid waste carrying the wastewater is discharged to the solid-liquid separation mechanism 7, and is stored after being treated by the solid-liquid separation mechanism 7.
Specifically, the solid-liquid separation mechanism 7 includes a mounting bracket 703, a drum sieve 701, a second driving member 702, a water receiving tank 705 and a plurality of rollers 704, the mounting bracket 703 is fixed below the separation tank 1, the mounting bracket 703 includes a first mounting portion and a second mounting portion, the second driving member 702 is fixed on the first mounting portion, the second driving member 702 adopts a stepping motor, an output shaft of the stepping motor is fixedly connected to the bottom of the drum sieve 701, and the drum sieve 701 and the output shaft can be driven to rotate synchronously. The trommel 701 is hollow round table shape as a whole, the aperture of the opening of the trommel 701 is larger than that of the bottom of the trommel, the trommel 701 is obliquely installed on the second installation part, the installation position of the trommel 701 is lower than that of the second driving piece 702, and the bottom of the trommel 701 is higher than the opening position, so that the solid waste is discharged along the downward inclined direction of the bottom of the trommel 701 pointing to the opening. The water receiving tank 705 is installed right below the drum screen 701 and is used for receiving wastewater, and the water receiving tank 705 can be communicated with the radioisotope wastewater attenuation tank 2 through a pipeline provided with a water inlet valve.
In order to improve the stability of the drum screen 701, three rollers 704 which are circumferentially arranged are arranged at the end part of the mounting bracket 703 close to the opening of the drum screen 701, and the circumferentially arranged rollers 704 are connected with the circumferential side of the opening of the drum screen 701 and can rotate relative to the drum screen 701 when the drum screen 701 rotates, so that the effects of supporting and facilitating the rotation of the drum screen 701 are achieved. The bottom of the separation tank 1 extends into the bottom of the drum screen 701 from an opening of the drum screen 701 through a pipeline provided with a water inlet valve, so that the separation tank 1 is communicated with the solid-liquid separation mechanism 7, and solid waste and wastewater are discharged to the bottom of the drum screen 701.
When the solid waste in the separation tank 1 is collected to a certain amount, a water inlet valve between the water inlet tank 101 and the separation tank 1 is closed, the water inlet valve between the separation tank 1 and the rotary screen 701 and the water inlet valve between the water receiving tank 705 and the radioisotope wastewater attenuation tank 2 are respectively opened, the wastewater at the bottom of the separation tank 1 and the solid waste are discharged into the rotary screen 701 together, the rotary screen 701 is driven by the stepping motor to rotate, the wastewater can be rapidly discharged to the water receiving tank 705 from the sieve holes of the rotary screen, the solid waste is discharged downwards along the opening direction of the rotary screen 701 in an inclined mode, the wastewater in the water receiving tank 705 is discharged to the radioisotope wastewater attenuation tank 2 through the water inlet pipe 10, and the solid waste falling from the rotary screen 701 is transported to the waste storage chamber 3 to be stored. The discharged solid waste may be collected by manual collection or by machine.
Compared with the first embodiment, the solid-liquid separation mechanism 7 is adopted to cooperate with the system control mode to discharge the solid waste at the bottom of the separation tank 1 out of the separation tank 1, so that the solid waste is convenient to treat. And solid-liquid separation is carried out on the solid waste before the solid waste is stored, so that the burden of post-treatment on the solid waste can be reduced. It should be noted that other characteristics not mentioned in this embodiment are the same as those in the first embodiment, and are not described herein again.
EXAMPLE III
As shown in fig. 6, according to the second embodiment, the collecting device 6 further includes a transporting mechanism 8, and the transporting mechanism 8 is used for transporting and storing the solid waste separated by the solid-liquid separating mechanism 7. Specifically, the transport mechanism 8 includes a transport rail 801, a plurality of collecting tanks 802, and a third driving member 803, the transport rail 801 has a double-rail structure, the transport rail 801 is disposed below the drum screen 701 of the solid-liquid separation mechanism 7 by a bracket, and a position right below the opening of the drum screen 701 is a receiving station, and positions at both ends of the transport rail 801 in the longitudinal direction thereof are waiting stations. The collection tub 802 may be provided in two for receiving the solid waste dropped by the drum screen 701, and the bottom of the collection tub 802 is provided with an openable door through which the garbage can be discharged. The four corners of the collecting bucket 802 at the bottom thereof are provided with pulleys, and the collecting bucket 802 can move back and forth between the receiving station and the waiting station of the conveying rail 801 by the driving of the third driving member 803. Specifically, the third driving element 803 includes a stepping motor and a transmission chain 804, the transmission chain 804 is respectively connected to the stepping motor and the collecting barrel 802, wherein the transmission chain 804 is fixed to the outer side of the collecting barrel 802, the transmission chain 804 is further connected to an output shaft of the stepping motor through a gear, and the transmission chain 804 can rotate through the gear under the rotation of the output shaft, so that the two collecting barrels 802 move between the receiving station and the waiting station. A water leakage groove is arranged under the collecting barrel 802, is fixedly arranged on the side wall of the water receiving groove 705 and is communicated with the water receiving groove 705, and is used for receiving wastewater falling from the collecting barrel 802. Dispose ultrasonic sensor in the collecting vessel 802 for detect the interior garbage collection condition of bucket, ultrasonic sensor is connected with PLC control system, sends the information of collecting to PLC control system.
When the garbage collecting system works, solid wastes falling from the rotary screen 701 enter the collecting barrel 802, when the full state of the collecting barrel 802 is detected, the system starts the stepping motor of the third driving piece 803, the conveying chain 804 drives the collecting barrel 802 positioned on the receiving station to move from the receiving station to the waiting station at the end part of the conveying track 801, the bottom of the collecting barrel 802 discharges the solid wastes into a specially-made garbage barrel, the waste barrel is moved to the waste storage chamber 3 by the mechanical arm to be placed, and the solid wastes are processed after being detected to be qualified. And the other collecting barrel 802 moves from the waiting station at the other end of the conveying track 801 to the receiving station by the driving of the conveying chain 804, and is used for receiving the solid waste at the next time, so as to receive and convey the solid waste alternately in turn.
Compared with the second embodiment, the second embodiment adopts the automatic transportation and discharge mode to receive the solid waste, so that the labor intensity of workers can be reduced. It should be noted that the characteristics not mentioned in the present embodiment are the same as those in the present embodiment, and are not described herein again.
On the whole, the invention combines the treatment of solid waste and wastewater by the combination of the radioactive isotope wastewater attenuation tank 2, the separation tank 1, the inclined plane sedimentation structure 4, the stirring device 5 and the collection device 6 and the control system, thereby avoiding the waste of manpower and the waste of resources; the inclined plane sedimentation structure 4 in the separation tank 1 is matched with the stirring device 5, so that solid waste in the wastewater can be treated; can avoid solid waste directly discharge to radioactive isotope waste water decay pond 2 in and likely appear piling up of solid waste along with waste water, and then need spend the manual work again and clear up the condition of radioactive isotope waste water decay pond 2, be applicable to radioactive waste water and solid waste's processing, realize that automated processing has radioactive waste water and solid waste's purpose, reduce the pollution to the environment.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the present invention.
Claims (10)
1. A radioisotope wastewater treatment system, comprising:
a separation tank (1) for separating solid waste in wastewater;
a plurality of radioactive isotope waste water attenuation pools (2) for storing waste water;
a waste storage chamber (3) for storing solid waste separated from the waste water;
the stirring device (5) is arranged inside the separation tank (1) and is used for smashing solid wastes in the wastewater;
a collecting device (6) for collecting the crushed solid waste;
an inclined plane sedimentation structure (4) is arranged in the separation tank (1) and is used for settling the solid waste crushed by the stirring device (5) so that the crushed solid waste enters the collecting device (6);
a plurality of radioisotope waste water attenuation pond (2) all are equipped with drain pipe (11) that the drainage was used, and are a plurality of be connected with inlet tube (10) between radioisotope waste water attenuation pond (2) and separation tank (1) to make waste water can get into through inlet tube (10) separation tank (1) and discharge through drain pipe (11) radioisotope waste water attenuation pond (2).
2. A radioisotope waste water processing system as claimed in claim 1, wherein said stirring device (5) comprises a stirring rod (502) having a stirring blade (501) at an end thereof, and a first driving member (503), said first driving member (503) is configured to drive said stirring rod (502) and said stirring blade (501) to rotate, and an output end of said first driving member (503) is fixedly connected to said stirring rod (502).
3. A radioisotope waste water treatment system as claimed in claim 1, wherein said inclined plane sedimentation structure (4) comprises:
the inclined slope (401) is arranged at the bottom of the separation tank (1) so that the interior of the separation tank (1) is of a structure with a large top and a small bottom;
a separation filter plate (402) for isolating solid waste from the wastewater in the separation tank (1); the separation filter plate (402) is arranged between two sides of the separation tank (1) and arranged along the inclined plane of the inclined plane slope (401); the separation filter plate (402) is provided with meshes, wastewater is discharged into the radioisotope wastewater attenuation tank (2) through the water inlet pipe (10) after being separated from solid waste by the separation filter plate (402), and the solid waste is descended to the bottom of the separation tank (1) under the action of water flow in the slope (401) and the separation tank (1) and then enters the collection device (6).
4. A radioisotope waste water disposal system as claimed in claim 1, wherein said collecting means (6) comprises solid-liquid separating means (7) for treating solid waste precipitated to the bottom of said separating tank (1) with said solid-liquid separating means (7).
5. A radioisotope waste water disposal system as claimed in claim 4, wherein said solid-liquid separating means (7) comprises:
a drum screen (701), wherein the bottom of the separation tank (1) is communicated with the drum screen (701) through a pipeline so as to discharge the solid waste and the wastewater to the drum screen (701), the drum screen (701) can discharge the wastewater from the screen holes, and the solid waste is discharged along the opening of the drum screen (701);
the output end of the second driving element (702) is connected to the bottom of the drum screen (701) and is used for driving the drum screen (701) to rotate;
the mounting bracket (703), the said driving piece is fixed on one end of the mounting bracket (703), the said drum screen (701) is connected between mounting brackets (703) and located below the second driving piece (702), make the drum screen (701) slope to set up under the separation tank (1) through the said mounting bracket (703);
the water receiving tank (705) is used for receiving wastewater falling from the drum screen (701), the water receiving tank (705) is arranged below the drum screen (701), and the water receiving tank (705) can be communicated with the radioisotope wastewater attenuation pool (2) through a pipeline and a control valve;
the rotary screen is characterized by comprising a plurality of rollers (704) arranged on a mounting bracket (703), and the periphery of the opening of the rotary screen (701) is connected with the rollers (704).
6. A radioisotope waste water disposal system as claimed in claim 5, wherein said collecting means (6) further comprises transportation means (8), said transportation means (8) being adapted to transport and store said solid waste separated by said solid-liquid separating means (7).
7. A radioisotope waste water treatment system as claimed in claim 6, wherein said transport means (8) comprises:
the conveying track (801) is arranged below the solid-liquid separation mechanism (7), a receiving station is arranged at the position right below the rotary screen (701), and positions at two ends of the conveying track (801) are waiting stations;
the collecting barrels (802) are used for receiving the solid waste falling from the drum screen (701), and the collecting barrels can discharge the solid waste after being detected to be qualified;
a third driving member (803) for driving the collecting barrel to move back and forth between the receiving station and the waiting station of the conveying track (801).
8. A radioisotope waste water treatment system as claimed in claim 1, further comprising a spare reservoir (9) disposed adjacent to said radioisotope waste water attenuation reservoir (2), said spare reservoir (9) being in communication with each of said radioisotope waste water attenuation reservoirs (2) via a water pipe provided with a water inlet valve for storing excess waste water to be treated.
9. The radioisotope wastewater treatment system as claimed in claim 1, further comprising a control system, wherein a water inlet valve and a water discharge valve are respectively disposed on the water inlet pipe (10) and the water discharge pipe (11) of the radioisotope wastewater attenuation tank (2), a plurality of the radioisotope wastewater attenuation tanks (2) are respectively provided with an ultra-level alarm and a radioactive detector for preventing liquid leakage, and the water inlet valve, the water discharge valve, the ultra-level alarm and the radioactive detector are all connected with the control system.
10. A radioisotope wastewater treatment system as claimed in claim 9, wherein said over-level alarm comprises:
the first liquid level alarm is used for transmitting liquid level information to the control system when the water quantity in the tank reaches a preset value of the first liquid level alarm, and the control system correspondingly controls a water inlet valve on a water inlet pipe (10) of the radioisotope wastewater attenuation tank (2) to be closed to stop water inlet;
and the second liquid level alarm is used for detecting the amount of wastewater in the tank after a water inlet valve on a water inlet pipe (10) of the radioisotope wastewater attenuation tank (2) is closed, and transmitting liquid level information to the control system to alarm when the amount of wastewater is lower than the set value of the second liquid level alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098147.8A CN110787531A (en) | 2019-11-12 | 2019-11-12 | Radioisotope wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098147.8A CN110787531A (en) | 2019-11-12 | 2019-11-12 | Radioisotope wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110787531A true CN110787531A (en) | 2020-02-14 |
Family
ID=69444137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911098147.8A Pending CN110787531A (en) | 2019-11-12 | 2019-11-12 | Radioisotope wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110787531A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113797647A (en) * | 2021-09-30 | 2021-12-17 | 江苏超敏科技有限公司 | Novel decay pond |
| CN113830931A (en) * | 2021-10-22 | 2021-12-24 | 核工业二三O研究所 | Treatment equipment for radioactive element-containing polluted wastewater |
| CN117059292A (en) * | 2023-08-16 | 2023-11-14 | 西南科技大学 | Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0243600B1 (en) * | 1986-02-26 | 1993-11-24 | General Signal Corporation | System for removing liquid from slurries of liquid and particulate material |
| JP2016077972A (en) * | 2014-10-17 | 2016-05-16 | 弘治 菅原 | Filtration device |
| CN105597405A (en) * | 2014-11-11 | 2016-05-25 | 王金鹤 | Novel solid-liquid separation sieve |
| CN206173147U (en) * | 2016-11-01 | 2017-05-17 | 上海驿鼎环境工程有限公司 | Medical waste water treatment equipment |
| CN207483472U (en) * | 2017-10-30 | 2018-06-12 | 河南鸿昇环保科技有限公司 | A kind of aquaculture wastewater preliminary clearning processing unit |
| CN109045791A (en) * | 2018-05-13 | 2018-12-21 | 王秀勤 | A kind of chemical engineering sewage processing recyclable device |
-
2019
- 2019-11-12 CN CN201911098147.8A patent/CN110787531A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0243600B1 (en) * | 1986-02-26 | 1993-11-24 | General Signal Corporation | System for removing liquid from slurries of liquid and particulate material |
| JP2016077972A (en) * | 2014-10-17 | 2016-05-16 | 弘治 菅原 | Filtration device |
| CN105597405A (en) * | 2014-11-11 | 2016-05-25 | 王金鹤 | Novel solid-liquid separation sieve |
| CN206173147U (en) * | 2016-11-01 | 2017-05-17 | 上海驿鼎环境工程有限公司 | Medical waste water treatment equipment |
| CN207483472U (en) * | 2017-10-30 | 2018-06-12 | 河南鸿昇环保科技有限公司 | A kind of aquaculture wastewater preliminary clearning processing unit |
| CN109045791A (en) * | 2018-05-13 | 2018-12-21 | 王秀勤 | A kind of chemical engineering sewage processing recyclable device |
Non-Patent Citations (1)
| Title |
|---|
| 王登高: "《军事预防医学（第2版）》", 31 March 2009, 军事医学科学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113797647A (en) * | 2021-09-30 | 2021-12-17 | 江苏超敏科技有限公司 | Novel decay pond |
| CN113830931A (en) * | 2021-10-22 | 2021-12-24 | 核工业二三O研究所 | Treatment equipment for radioactive element-containing polluted wastewater |
| CN113830931B (en) * | 2021-10-22 | 2023-04-07 | 核工业二三O研究所 | Treatment equipment for radioactive element-containing polluted wastewater |
| CN117059292A (en) * | 2023-08-16 | 2023-11-14 | 西南科技大学 | Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method |
| CN117059292B (en) * | 2023-08-16 | 2024-03-29 | 西南科技大学 | Pretreatment system for solid-liquid separation of nuclear medical radioactive wastewater and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110787531A (en) | Radioisotope wastewater treatment system | |
| CN103204614B (en) | Resource circulation type human night soil treatment device | |
| CN207619157U (en) | A kind of sewage-treatment plant being conveniently replaceable filter screen | |
| CN109403290A (en) | A kind of environmental protection collecting refuse from open water grinding device | |
| CN212269703U (en) | Efficient circulating type sewage treatment device for pure water | |
| CN103951002A (en) | Solid-liquid separation device | |
| CN108625451B (en) | Sponge city rainwater oozes row structure and circulating device | |
| CN109847443A (en) | Sewage treatment unit is recycled in a kind of | |
| CN209947448U (en) | Radioisotope wastewater treatment system | |
| CN211486707U (en) | A blowdown economizer for sewage treatment | |
| CN108031163A (en) | A kind of sanitary sewage organic matter, which is collected, recycles processing equipment | |
| CN110981019A (en) | Community sewage discharge device based on sewage treatment | |
| CN206308171U (en) | A kind of plastic processing wastewater treatment equipment | |
| CN106186522B (en) | Bio-toilet | |
| CN213060497U (en) | Domestic wastewater filters collection device | |
| CN108423898A (en) | A kind of environment-friendly high-efficiency sewage filter system | |
| CN214654107U (en) | Automatic treatment system for livestock breeding sewage | |
| CN115223741A (en) | Radioactive waste liquid treatment system and treatment method | |
| CN209797733U (en) | From septic tank of taking filter equipment | |
| CN112159046A (en) | Centralized water-saving recycling system | |
| CN207203614U (en) | A kind of sewage disposal device based on technological service | |
| CN220657663U (en) | Sludge treatment equipment | |
| CN220788338U (en) | Purification device for biochemical effluent of landfill leachate treatment | |
| CN214402091U (en) | Decontamination shunting device for preventing and treating agricultural non-point source pollution | |
| CN214005826U (en) | Take prefabricated pump station of integration of solid-liquid separation mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200214 |
|
| RJ01 | Rejection of invention patent application after publication |