CN109187096A - The grading sampling device of micro- plastic pollution object in a kind of sewage - Google Patents
The grading sampling device of micro- plastic pollution object in a kind of sewage Download PDFInfo
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- CN109187096A CN109187096A CN201811134135.1A CN201811134135A CN109187096A CN 109187096 A CN109187096 A CN 109187096A CN 201811134135 A CN201811134135 A CN 201811134135A CN 109187096 A CN109187096 A CN 109187096A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
- G01N2001/1012—Suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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Abstract
The invention discloses a kind of grading sampling devices of plastic pollution object micro- in sewage, mainly include filtering hierarchical device, sampler, water tank, sewage collecting box；Filtering hierarchical device is connect with sampler；Sampler includes the first sampler, the second sampler, third sampler, the 4th sampler；Water tank is connect with the receiving flask of the first sampler, the second sampler, third sampler, the 4th sampler respectively, and junction is provided with suction pump and solenoid valve；Sewage collecting box is connect with the sewage entrance of the first sampler, the second sampler, third sampler, the 4th sampler respectively, and junction is provided with solenoid valve；Method of the present invention by designing uninterruptedly classified filtering provides a kind of screening plant easy to operate, stable, economic for the acquisition of micro- plastic pollution object in water body.
Description
Technical field
The present invention relates to micro- plastics sampling technique fields, and in particular to the cascade sampling of micro- plastic pollution object in a kind of sewage
Device.
Background technique
Recently, plastic products are higher and higher in the shared specific gravity of life, are at home and abroad widely used.Although plastics system
Product bring convenience to social life, and still, the downside in " plastics epoch " also gradually displays.In fact, plastics are in water
Accumulation in environment (ocean and rivers and lakes) not only generates Landscape and a series of ecology influence, when they are with the time
Increase, degrade, fissioned into smaller size of pollutant under the action ofs physics, chemistry, biology etc. --- " micro- plastics " (diameter <
After 5mm), it will be dramatically increased by a possibility that biology intake, which has caused the extensive concern of scientific circles.As a kind of people
Work sintetics, micro- plastics are mostly from industry, sewage discharge and garbage degradation in life, common polymer type
Are as follows: polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), polylactic acid (PLA) and poly terephthalic acid
The polymer such as second diester (PET).The characteristic that micro- plastics have small partial size, large specific surface area, hydrophobicity strong, itself can not only discharge
Nuisance (phthalic acid ester, bisphenol-A, formaldehyde etc.), and the pollutant easily in adsorbed water body, including polycyclic aromatic hydrocarbon
(PAH), Polychlorinated biphenyls (PCBs) etc..After micro- plastics are ingested by aquatile, the pollutant of carrying can be discharged and to organism
Generate toxicity.In addition, plastics itself contain multiple additives (such as plasticizer, stabilizer, filler etc.), and greatly most without life
Object degradability, big pollutant plastics form these releasable additives during micro- plastics in the environment, have caused to water body
Evil influences.Therefore, as a kind of novel environmental contaminants, micro- plastics already become in recent years and following research hotspot.
The device of micro- plastics acquisition and method do not standardize in water sample at present, and go deep into research, pay close attention to micro- modeling
The size of material is also smaller and smaller, then, for isolated difficulty with regard to increasing, the device of micro- plastics acquisition in the prior art cannot
Effectively sample grading is carried out to micro- plastics.For micro- plastics of size < 5mm naked eyes visible (or non-visible), when sieving not
The pollution of micro- plastic optical fibre in ambient enviroment can be intercepted.Meanwhile not only operation repeats sample and cumbersome consumption in transfer process
When, it also will increase the pollution probability of external environment.Therefore micro- plastic pollution object sample grading in a kind of sewage treatment plant is developed
Device can reduce the pollution of air and surrounding enviroment object, and fast and efficiently acquire out micro- plastics (different-grain diameter model
Enclose), facilitate subsequent grain diameter measurement and identification.
Summary of the invention
In view of the above problems, the present invention provides a kind of grading sampling devices of plastic pollution object micro- in sewage.
Design scheme of the invention are as follows: the grading sampling device of micro- plastic pollution object in a kind of sewage, main includes filtering
Grading plant, sampler, water tank, sewage collecting box, control device and power supply device；The filtering hierarchical device includes classification
Case, connector and filtering table are provided with wastewater inlet, cushion chamber and water leakage disk on the classification case, leakage are provided on connector
Sink；The sampler includes the first sampler, the second sampler, third sampler, the 4th sampler；
The wastewater inlet is connect with classification case, and wastewater inlet is used to that due-in collection source of sewage to be added into classification case, described
Cushion chamber setting is in wastewater inlet and classification case junction；
The connector has 4, and 4 connectors are successively uniformly arranged on from top to bottom on the inner wall of the classification case, institute
Stating filtering table includes the first filter disc, the second filter disc, third filter disc, the 4th filter disc, first filter disc, the second filter disc, third filter
Disk, the 4th filter disc are respectively the stainless steel filter disc of aperture from big to small, the first filter disc, the second filter disc, third filter disc, the 4th filter disc
Activity is placed on 4 connectors respectively, and the first filter disc, the second filter disc, third filter disc, the 4th filter disc will be in filtering hierarchical devices
Portion is divided into raw water area, level-one pool, second level pool, three-level pool and level Four pool from top to bottom；
Filtering hierarchical device lower end is provided with installs case, and the water tank is arranged in the installs case inner upper end, institute
It states sewage collecting box to be arranged inside installs case, is located at water tank lower end；First sampler, the second sampler, third sampling
Device, the 4th sampler are separately positioned on 4 side walls of installs case；
First sampler includes that screening bottle, receiving flask and sampling test tube, the receiving flask include level-one receiving flask, two
Grade receiving flask；The screening bottom of bottle portion is provided with sewage entrance, and screening bottle lower end is provided with primary filter, and the level-one is collected
Bottle setting is located above primary filter inside screening bottle, and the second level receiving flask is arranged inside level-one receiving flask, described to take
Sample test tube is movably arranged on inside second level receiving flask through screening bottle, level-one receiving flask, and sampling test tube is arranged by upper end position
There is sample inlet；The sewage entrance is connect with level-one pool；The pore size of the primary filter between the first filter disc and
Between the aperture of second filter disc；
Second sampler and the first sampler the difference is that the second sampler sewage entrance and second level water
Area's connection, the aperture of the secondary filter of the second sampler is between the second filter disc and the aperture of third filter disc；
The third sampler and the first sampler the difference is that third sampler sewage entrance and tertiary effluent
Area's connection, the aperture of the three-level strainer of third sampler is between third filter disc and the aperture of the 4th filter disc；
4th sampler and the first sampler the difference is that the 4th sampler sewage entrance and four
The connection of grade pool, the aperture of the aperture of the level Four strainer of the 4th sampler less than the 4th filter disc；
The water tank connects with the receiving flask of the first sampler, the second sampler, third sampler, the 4th sampler respectively
It connects, junction is provided with suction pump and solenoid valve；The sewage collecting box respectively with the first sampler, the second sampler, third
Sampler, the 4th sampler sewage entrance connected with leak-off chute, junction is provided with solenoid valve；
The control device includes controller and touch screen, and the controller is connect with suction pump, solenoid valve；The touch
Screen is connected with controller；The power supply device is suction pump, solenoid valve provides power supply.
Further, classification case filters container using truncated cone-shaped stainless steel, wide at the top and narrow at the bottom, filters the upper bottom width of container
30cm, lower bottom width 20cm, high 25cm；It is more convenient when the first filter disc, the second filter disc, third filter disc, the 4th filter disc are arranged.
Further, case lid is arranged in classification case upper end activity, and the wastewater inlet and cushion chamber are arranged on case lid；It is convenient
Each layer strainer is taken out, convenient for periodically being cleaned.
Further, be provided with the leakage hole of 4 kinds of pore sizes on water leakage disk, and the leakage hole of 4 kinds of pore sizes according to
Circumferentially shape is uniformly distributed from inside to outside on water leakage disk from small to large in aperture；Source of sewage, can be uniform when entering classification case
Inflow, be effectively prevented and block, avoid water flow impact at the one of the first filter disc, cause screening effect bad.
Further, the first filter disc, the second filter disc, third filter disc, the 4th filter disc are all cone, and are arranged in edge
There are two pull rings；Conical structure is more conducive to water flow and uniformly penetrates filter disc with gravity, and the setting of pull ring is so that take out
Strainer is more convenient.
Further, the first filter disc, the second filter disc, third filter disc, the 4th filter disc aperture be respectively 333 μm, 150 μm,
74 μm and 30 μm；According to the diameter of micro- plastic pollution object to be separated determine, can more effectively to micro- plastic pollution object into
Row screening.
Further, level-one receiving flask, be provided with floater shot non-return valve, the floater shot non-return valve packet on second level receiving flask
Pedestal and floater shot are included, the pedestal is arranged on the inner wall of level-one receiving flask, second level receiving flask, and the floater shot activity is placed
On pedestal, and when water submerged floater shot, floater shot can rise with water level；Prevent the water source when being sampled from being returned
Stream can accelerate the rate of sampling.
Working principle of the present invention: in use, due-in collection source of sewage is added into classification case from wastewater inlet, sewage is first passed through
Filtering table is sieved, and micro- plastic pollution object of different pore size is made to respectively enter the first sampler, the second sampling as required
In the screening bottle in the 4th sampler, clear water then is added into screening bottle, so that micro- plastic pollution object in device, third sampler
As clear water is floated in sampling test tube；After sampling, the first sampler, the second sampler, third are sampled using clear water
It is backwashed inside device, the 4th sampler.
Compared with prior art, beneficial effects of the present invention: the present invention passes through design uninterruptedly classified filtering
Method provides a kind of screening plant easy to operate, stable, economic for the acquisition of micro- plastic pollution object in water body.The dress
The filtering for micro- plastics in sewage treatment plant's sample and acquisition working efficiency with higher are set, solves a constant volume
The problems such as water body example is time-consuming during the extraction process, accuracy；Apparatus of the present invention use the semi-automatic process of continuous-stable, subtract
Lack the manual intervention of sample pre-treatments, and improves collecting efficiency.Meanwhile all devices are daily available equipment, behaviour
Make process rapidly and simply；The present invention uses the truncated cone-shaped filter of type wide at the top and narrow at the bottom, and handle under, lift upwards by two flank side surfaces
Water sample, and base support is mounted in this bottom of device, the pressure to whole device bottom is reduced, and improve entire circle
The stability of platform shape filter；Filtering container, the strainer that the present invention selects are stainless steel material, nontoxic, can be carried out
Circulation reuses, and reduces the use of filter membrane, economical and practical.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structural schematic diagram of the case lid of classification case of the invention；
Fig. 3 is the bottom view of water leakage disk of the invention；
Fig. 4 is the attachment structure schematic diagram of classification case of the invention, connector, filtering table；
Fig. 5 is the structural schematic diagram of installs case of the invention；
Fig. 6 is the structural schematic diagram of the first sampler of the invention；
Fig. 7 is the structural schematic diagram of sampling test tube of the invention；
Fig. 8 is the structural schematic diagram of floater shot non-return valve of the invention；
Wherein, 1- filtering hierarchical device, 11- are classified case, 111- wastewater inlet, 112- cushion chamber, 113- water leakage disk, 12-
Connector, 13- filtering table, the first filter disc of 131-, the second filter disc of 132-, 133- third filter disc, the 4th filter disc of 134-, 2- sampling dress
It sets, the first sampler of 21-, 211- screening bottle, 2110- sewage entrance, 2111- primary filter, 212- level-one receiving flask, 213-
Second level receiving flask, 214- sampling test tube, 2140- sample inlet, the second sampler of 22-, 23- third sampler, 24- the 4th are sampled
Device, 3- water tank, 4- sewage collecting box, 5- floater shot non-return valve.
Specific embodiment
Embodiment: the grading sampling device of micro- plastic pollution object in a kind of sewage as shown in Figure 1, main includes filtering point
Stage arrangement 1, sampler 2, water tank 3, sewage collecting box 4, control device and power supply device；Filtering hierarchical device 1 includes classification
Case 11, connector 12 and filtering table 13 are classified on case 11 and are provided with wastewater inlet 111, cushion chamber 112 and water leakage disk 113, connect
Leak-off chute is provided on device 12；Sampler 2 takes including the first sampler 21, the second sampler 22, third sampler the 23, the 4th
Sample device 24；
Wastewater inlet 111 is connect with classification case 11, and wastewater inlet 111 is used to that due-in collection sewage to be added into classification case 11
Source, the setting of cushion chamber 112 is in wastewater inlet 111 and classification 11 junction of case；
As shown in Fig. 1,4, connector 12 has 4, and 4 connectors 12 are successively uniformly arranged on classification case 11 from top to bottom
On inner wall, filtering table 13 includes the first filter disc 131, the second filter disc 132, third filter disc 133, the 4th filter disc 134, the first filter disc
131, the second filter disc 132, third filter disc 133, the 4th filter disc 134 are respectively the stainless steel filter disc of aperture from big to small, the first filter
Activity is placed on 4 connectors 12 respectively for disk 131, the second filter disc 132, third filter disc 133, the 4th filter disc 134, the first filter disc
131, the second filter disc 132, third filter disc 133, the 4th filter disc 134 will be divided into from top to bottom inside filtering hierarchical device 1 raw water area,
Level-one pool, second level pool, three-level pool and level Four pool；Wherein, classification case 11 filters container using truncated cone-shaped stainless steel, on
It is narrow under width, filter the upper bottom width 30cm of container, lower bottom width 20cm, high 25cm；As shown in Figure 1, 2, classification 11 upper end activity of case is set
Case lid is set, wastewater inlet 111 and cushion chamber 112 are arranged on case lid；As shown in figure 3, being provided with 4 kinds of apertures on water leakage disk 113
The leakage hole of size, and the leakage hole of 4 kinds of pore sizes according to aperture from small to large on water leakage disk 113 from inside to outside circumferentially
Shape is uniformly distributed；First filter disc 131, the second filter disc 132, third filter disc 133, the 4th filter disc 134 are all cone, and at edge
There are two pull rings 131 for place's setting；The aperture difference of first filter disc 131, the second filter disc 132, third filter disc 133, the 4th filter disc 134
It is 333 μm, 150 μm, 74 μm and 30 μm；
As shown in Figure 1,5,1 lower end of filtering hierarchical device is provided with installs case, and water tank 3 is arranged in installs case inner upper end,
Sewage collecting box 4 is arranged inside installs case, is located at 3 lower end of water tank；First sampler 21, the second sampler 22, third sampling
Device 23, the 4th sampler 24 are separately positioned on 4 side walls of installs case；
As shown in Figure 6,7, the first sampler 21 includes that screening bottle 211, receiving flask and sampling test tube 214, receiving flask include
Level-one receiving flask 212, second level receiving flask 213；Screening 211 bottom of bottle is provided with sewage entrance 2110, and screening 211 lower end of bottle is set
It is equipped with primary filter 2111, the setting of level-one receiving flask 212 is located at 2111 top of primary filter inside screening bottle 211, and second level is received
Collect bottle 213 to be arranged inside level-one receiving flask 212, sampling test tube 214 is through screening bottle 211, the 212 activity setting of level-one receiving flask
Inside second level receiving flask 213, and sampling test tube 214 is provided with sample inlet 2140 by upper end position；Sewage entrance 2110
It is connect with level-one pool；The pore size of primary filter 2111 is between the first filter disc 131 and the aperture of the second filter disc 132；
Second sampler 22 and the first sampler 21 the difference is that the second sampler 22 sewage entrance and second level
Pool connection, the aperture of the secondary filter of the second sampler 22 is between the second filter disc 132 and the aperture of third filter disc 133；
Third sampler 23 and the first sampler 21 the difference is that third sampler 23 sewage entrance and three-level
Pool connection, the aperture of the three-level strainer of third sampler 23 is between third filter disc 133 and the aperture of the 4th filter disc 134；
4th sampler 24 and the first sampler 21 the difference is that the 4th sampler 24 sewage entrance and level Four
Pool connection, the aperture of the aperture of the level Four strainer of the 4th sampler 24 less than the 4th filter disc 134；
The collection with the first sampler 21, the second sampler 22, third sampler 23, the 4th sampler 24 respectively of water tank 3
Bottle connection, junction is provided with suction pump and solenoid valve；Sewage collecting box 4 respectively with the first sampler 21, the second sampler 22,
Third sampler 23, the 4th sampler 24 sewage entrance connected with leak-off chute, junction is provided with solenoid valve；
Control device includes controller and touch screen, and controller is connect with suction pump, solenoid valve；Touch screen and controller connect
It connects；Power supply device is suction pump, solenoid valve provides power supply.
Wherein, it is provided with floater shot non-return valve 5 on level-one receiving flask 212, second level receiving flask 213 as shown in Fig. 6,8, floated
Ball non-return valve 5 includes pedestal and floater shot, and pedestal is arranged on the inner wall of level-one receiving flask 212, second level receiving flask 213, is floated
Ball activity is placed on pedestal, and when water submerged floater shot, floater shot can rise with water level.
The working principle of the invention: in use, due-in collection source of sewage is added into classification case 11 from wastewater inlet 111, it is dirty
Water first passes through filtering table 13 and is sieved, and micro- plastic pollution object of different pore size is made to respectively enter the first sampler as required
21, the second sampler 22, third sampler 23, in the screening bottle 211 in the 4th sampler 24, then into screening bottle 211 plus
Enter clear water, so that micro- plastic pollution object is floated in sampling test tube 214 with clear water；After sampling, using clear water to first
Sampler 21, third sampler 23, is backwashed inside the 4th sampler 24 second sampler 22.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (7)
1. the grading sampling device of micro- plastic pollution object in a kind of sewage, which is characterized in that mainly include filtering hierarchical device
(1), sampler (2), water tank (3), sewage collecting box (4), control device and power supply device；The filtering hierarchical device (1)
Including classification case (11), connector (12) and filtering table (13), it is provided with wastewater inlet (111) on the classification case (11), delays
Chamber (112) and water leakage disk (113) are rushed, connector is provided with leak-off chute on (12)；The sampler (2) includes the first sampler
(21), the second sampler (22), third sampler (23), the 4th sampler (24)；
The wastewater inlet (111) connect with classification case (11), and wastewater inlet (111) is used to be added into classification case (11) due-in
Collect source of sewage, cushion chamber (112) setting is in wastewater inlet (111) and classification case (11) junction；
The connector (12) has 4, and 4 connectors (12) are successively uniformly arranged on the interior of classification case (11) from top to bottom
On wall, the filtering table (13) includes the first filter disc (131), the second filter disc (132), third filter disc (133), the 4th filter disc
(134), first filter disc (131), the second filter disc (132), third filter disc (133), the 4th filter disc (134) be respectively aperture from
Small stainless steel filter disc, the first filter disc (131), the second filter disc (132), third filter disc (133), the 4th filter disc (134) point are arrived greatly
Activity is not placed on 4 connectors (12), the first filter disc (131), the second filter disc (132), third filter disc (133), the 4th filter
Disk (134) will be divided into from top to bottom raw water area, level-one pool, second level pool, three-level pool and four inside filtering hierarchical device (1)
Grade pool；
Filtering hierarchical device (1) lower end is provided with installs case, and the water tank (3) is arranged in the installs case inner upper end,
The sewage collecting box (4) is arranged inside installs case, is located at water tank (3) lower end；First sampler (21), the second sampling
Device (22), third sampler (23), the 4th sampler (24) are separately positioned on 4 side walls of installs case；
First sampler (21) includes screening bottle (211), receiving flask and sampling test tube (214), and the receiving flask includes one
Grade receiving flask (212), second level receiving flask (213)；Screening bottle (211) bottom is provided with sewage entrance (2110), screening
Bottle (211) lower end is provided with primary filter (2111), and level-one receiving flask (212) setting is internal in screening bottle (211), is located at
Above primary filter (2111), second level receiving flask (213) setting is internal in level-one receiving flask (212), the sampling test tube
(214) second level receiving flask (213) inside, and sampling test tube are movably arranged on through screening bottle (211), level-one receiving flask (212)
(214) upper end position is provided with sample inlet (2140)；The sewage entrance (2110) connect with level-one pool；Described one
The pore size of grade strainer (2111) is between the first filter disc (131) and the aperture of the second filter disc (132)；
Second sampler (22) is with the first sampler (21) the difference is that the sewage entrance of the second sampler (22)
It is connect with second level pool, the aperture of the secondary filter of the second sampler (22) is between the second filter disc (132) and third filter disc (133)
Aperture between；
The third sampler (23) is with the first sampler (21) the difference is that the sewage entrance of third sampler (23)
It is connect with three-level pool, the aperture of the three-level strainer of third sampler (23) is between third filter disc (133) and the 4th filter disc (134)
Aperture between；
4th sampler (24) is with the first sampler (21) the difference is that the sewage of the 4th sampler (24) goes out
Entrance is connect with level Four pool, the aperture of the aperture of the level Four strainer of the 4th sampler (24) less than the 4th filter disc (134)；
The water tank (3) respectively with the first sampler (21), the second sampler (22), third sampler (23), the 4th sampler
(24) receiving flask connection, junction is provided with suction pump and solenoid valve；The sewage collecting box (4) respectively with the first sampler
(21), the second sampler (22), third sampler (23), the 4th sampler (24) sewage entrance connected with leak-off chute, even
The place of connecing is provided with solenoid valve；
The control device includes controller and touch screen, and the controller is connect with suction pump, solenoid valve；The touch screen and
Controller connection；The power supply device is suction pump, solenoid valve provides power supply.
2. the grading sampling device of micro- plastic pollution object in a kind of sewage according to claim 1, which is characterized in that described
First sampler (21), the second sampler (22), third sampler (23), the 4th sampler (24) are separately positioned on installation
On case.
3. the grading sampling device of micro- plastic pollution object in a kind of sewage according to claim 1, which is characterized in that described
It is classified case (11) and container is filtered using truncated cone-shaped stainless steel, it is wide at the top and narrow at the bottom, the upper bottom width 30cm of container, lower bottom width 20cm are filtered,
High 25cm.
4. the grading sampling device of micro- plastic pollution object in a kind of sewage according to claim 1, which is characterized in that described
Case lid is arranged in case (11) the upper end activity of classification, and the wastewater inlet (111) and cushion chamber (112) are arranged on case lid.
5. the grading sampling device of micro- plastic pollution object in a kind of sewage according to claim 1, which is characterized in that described
Be provided with the leakage hole of 4 kinds of pore sizes on water leakage disk (113), and the leakage hole of 4 kinds of pore sizes according to aperture from small to large
Circumferentially shape is uniformly distributed from inside to outside on water leakage disk (113).
6. the grading sampling device of micro- plastic pollution object in a kind of sewage according to claim 1, which is characterized in that described
First filter disc (131), the second filter disc (132), third filter disc (133), the 4th filter disc (134) are all cone, and in edge
There are two pull ring (131) for setting.
7. the grading sampling device of micro- plastic pollution object in a kind of sewage according to claim 1, which is characterized in that described
First filter disc (131), the second filter disc (132), third filter disc (133), the 4th filter disc (134) aperture be respectively 333 μm, 150 μ
M, 74 μm and 30 μm.
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| CN201811134135.1A CN109187096B (en) | 2018-09-27 | 2018-09-27 | Hierarchical sampling device of little plastic contaminant in sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134135.1A CN109187096B (en) | 2018-09-27 | 2018-09-27 | Hierarchical sampling device of little plastic contaminant in sewage |
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| CN109187096B CN109187096B (en) | 2020-09-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109946119A (en) * | 2019-04-28 | 2019-06-28 | 中国科学院烟台海岸带研究所 | The micro- plastics layered sampling device of boat-carrying |
| CN110006700A (en) * | 2019-03-27 | 2019-07-12 | 江苏省常州环境监测中心 | Micro- plastics Quick Acquisition sorting unit in a kind of water body based on integrated control |
| CN110092492A (en) * | 2019-05-17 | 2019-08-06 | 福建师范大学泉港石化研究院 | A kind of micro- plastics graded collecting device in ocean with biomimetic features |
| CN110470509A (en) * | 2019-08-28 | 2019-11-19 | 中国科学院武汉植物园 | The micro- plastic collection devices and methods therefor in handheld portable waters |
| CN110887700A (en) * | 2019-11-25 | 2020-03-17 | 同济大学 | Sampling method of micro-plastic in surface water body |
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| KR102455344B1 (en) * | 2021-10-20 | 2022-10-14 | (재)한국건설생활환경시험연구원 | Air sample collection device and analysis method of microplastic in air using the same |
| CN114838994A (en) * | 2022-07-05 | 2022-08-02 | 山东省地质矿产勘查开发局第四地质大队(山东省第四地质矿产勘查院) | Sectional type exploration sampler for underground water and using method thereof |
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