CN208476590U - A kind of Passive sampler acquired for nonpolar organic pollutants in sewer - Google Patents
A kind of Passive sampler acquired for nonpolar organic pollutants in sewer Download PDFInfo
- Publication number
- CN208476590U CN208476590U CN201821119719.7U CN201821119719U CN208476590U CN 208476590 U CN208476590 U CN 208476590U CN 201821119719 U CN201821119719 U CN 201821119719U CN 208476590 U CN208476590 U CN 208476590U
- Authority
- CN
- China
- Prior art keywords
- carrier shell
- acquired
- passive sampler
- filter bag
- organic pollutants
- 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.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of Passive samplers acquired for nonpolar organic pollutants in sewer, the Passive sampler includes carrier shell, the carrier shell is the small spindle-type in both ends broad in the middle, including upper and lower two separate structures, the top and bottom end of the carrier shell are plane, and it is evenly arranged multiple circular holes respectively in the plane of top and bottom end, a piece of polyvinylidene fluoride microporous barrier is stained on the inner wall of the carrier shell upper and lower ends respectively, and filter bag is provided between two panels polyvinylidene fluoride microporous barrier, adsorbent is filled in the filter bag.The Passive sampler of the utility model, carrier shell are designed using separate structure, easy to disassemble and installation, by double-filtration and absorption, the pollutant of enough detection limits can be enriched in 12 hours, by the amount for increasing adsorbent material, the sampling time can also be extended, be suitable for long term monitoring.
Description
Technical field
The utility model belongs to environmental pollution acquisition technique field, and in particular to one kind is organic for nonpolarity in sewer
The Passive sampler of pollutant acquisition.
Background technique
The sizable part of pollutant in environment water is in sanitary sewage, city, due to people's daily life
Used various chemicals, including cosmetics, cosmetology articles, detergent, detergent, drug etc., all can be with life
Sewage is discharged into sewage network, after sewage treatment plant, into surface water body.The conventional treatment work of current sewage treatment plant
Skill can not completely remove these chemical substances, thus an important sources of environmental pollution.Therefore, for city dirt
The acquisition of water sample is an important technological problems of environmental monitoring field.Traditional method of sampling, using automatic sampler or
Person samples manually, can not long term monitoring, simultaneously because the node of municipal sewage pipe network is more, the sample quantity for needing to arrange
Greatly, conventional method needs the on duty of personnel, and human cost is high, performance difficulty.
In the common organic pollutant of sanitary sewage, some be belong to nonpolar organic compound, such as
Drugs such as surfactant, polyamide-based coating, adriamycin in polycyclic aromatic hydrocarbon, detergent etc..Nonpolarity in environment is organic
Compound usually contains the groups such as aryl, ester, ether, amine, amide, in water quality sampling, is passively adopted with traditional hydrophilic material
Sample device, it is difficult to which high efficiency completes sample acquisition, therefore the utility model specially develops one kind and is suitable for nonpolar organic pollutants
The Passive sampler of acquisition fills up a blank of passive sampling technology.
Utility model content
In view of the deficiencies of the prior art, it is organic for nonpolarity in sewer that the purpose of this utility model is to provide one kind
The Passive sampler of pollutant acquisition, using the Fick's law of diffusion of pollutant as theoretical basis, to realize nonpolar organic contamination
The high efficiency of object sampling.
It is a kind of organic for nonpolarity in sewer that in order to achieve the above purposes, the technical solution adopted by the utility model is:
The Passive sampler of pollutant, including carrier shell, the carrier shell are the design of upper and lower two panels separate structure, and the two can be mutual
Fastening, the top and bottom end of the carrier shell are plane, and have been evenly arranged respectively in the plane of top and bottom end multiple
Circular hole is stained with a piece of polyvinylidene fluoride microporous barrier on the inner wall of the carrier shell upper and lower ends respectively, for further
The fine particle impurity in sewage is removed, the aperture of the polyvinylidene fluoride microporous barrier is 0.45 micron, and two panels gathers inclined two
It is provided with filter bag between fluoride microporous film, adsorbent is filled in the filter bag, it is organic for the hydrophobicity in absorption effluent
Pollutant.
Further, two separate structures up and down of the carrier shell are using threaded connection.
Further, the diameter of major part is 5cm among the carrier shell, and the diameter of both ends microcephaly is 3.5cm, is highly
3cm is specifically made of polytetrafluoroethylene (PTFE), convenient for being put into sewer, and takes into account the capacity of open ended adsorbent material.
Further, the circular hole that 24 diameters are 2mm is evenly arranged in the plane of the housing top end and bottom end respectively,
For the acquisition of sewage, while filtering out the large granular impurity in sewage.
Further, the filter bag selects acetate fiber to be made, filter bag having a size of 4cm × 3 cm, fill in the filter bag
Adsorbent be non-polar absorbent material, specially polystyrene-divinylbenzene adsorbs resin, and the weight of adsorbent is
0.1g。
Compared with prior art, the utility model has the beneficial effects that the Passive sampler of the utility model, carrier shell
It is designed using separate structure, easy to disassemble and installation, and the top of carrier shell and bottom end are plane, are provided in plane more
A circular hole, is entered inside carrier shell convenient for sewage by circular hole, using the filtering of polyvinylidene fluoride microporous barrier, and it is poly- inclined
Difluoroethylene microporous barrier can also further remove the fine particle impurity in sewage, until absorption of the target contaminant in filter bag
Agent enrichment；In addition, filter bag selects acetate fiber material to be made, because acetate fiber is stablized in sewage, and with it is most of hydrophobic
Property organic pollutant do not react, while there is preferable water penetration, be conducive to water pollutant through filter bag, in adsorption material
It is enriched in material.In addition, the Passive sampler of the utility model is convenient for being placed on the front end of sewage conduct, facilitate pick-and-place.By two-stage
Filtering and absorption, can be enriched with the pollutant of enough detection limits in 12 hours, by increasing the amount of adsorbent material, can also prolong
The long sampling time is suitable for long term monitoring.
Detailed description of the invention
Fig. 1 is the carrier shell external structure of the utility model；
Fig. 2 is the carrier shell end face structure figure of the utility model；
Fig. 3 is the internal structure chart of the utility model；
In figure: 1- carrier shell, 2- circular hole, 3- polyvinylidene fluoride microporous barrier, 4- filter bag.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.It is described below for taking off
Reveal the utility model so that those skilled in the art can be realized the utility model.Preferred embodiment in being described below is only used as
Citing, it may occur to persons skilled in the art that other obvious modifications.
In the utility model, it is non-polar adsorbent that embodiment, which selects stryrene divinyl absorption resin, is with methadone
Target contaminant.Wherein, stryrene divinyl absorption resin is non-polar adsorbent, and purchase is convenient, at low cost.Methadone is
A kind of novel organic pollutant, has hydrophobic character, is selected as the target contaminant of the present embodiment in city domestic sewage, comes
Verify the collection effect and acquisition method of the Passive sampler to the pollutant of the utility model.
It is as shown in Figs. 1-3: a kind of Passive sampler for nonpolar organic pollutants in sewer, including carrier shell
1, the carrier shell 1 is the design of upper and lower two panels separate structure, and the two can be fastened mutually, outside the carrier using being threadedly coupled
The top and bottom end of shell 1 are plane, and have been evenly arranged multiple circular holes 2, the carrier in the plane of top and bottom end respectively
A piece of polyvinylidene fluoride microporous barrier 3 is stained on the inner wall of 1 upper and lower ends of shell respectively, for further removing in sewage
Fine particle impurity, the aperture of the polyvinylidene fluoride microporous barrier 3 is 0.45 micron, and two panels polyvinylidene fluoride microporous barrier
It is provided with filter bag 4 between 3, adsorbent is filled in the filter bag 4, for the hydrophobic organic pollutant in absorption effluent.
Specifically, the diameter of the intermediate major part of the carrier shell 1 is 5cm, the diameter of both ends microcephaly is 3.5cm, is highly
3cm is specifically made of polytetrafluoroethylene (PTFE), convenient for being put into sewer, and takes into account the capacity of open ended adsorbent material.The carrier
The circular hole that 24 diameters are 2mm is evenly arranged in the plane of 1 top of shell and bottom end respectively, for the acquisition of sewage, simultaneously
Filter out the large granular impurity in sewage.The filter bag 4 selects acetate fiber to be made, filter bag 4 having a size of 4cm × 3 cm, it is described
The adsorbent filled in filter bag 4 is non-polar absorbent material, and specially polystyrene-divinylbenzene adsorbs resin, and adsorbent
Weight be 0.1g.
Using the Passive sampler, for the method for sampling of nonpolar organic pollutants in sewer, the method for sampling includes
Following steps:
(1) the polystyrene-divinylbenzene absorption resin of 0.1g is weighed as adsorbent, is placed in the filter bag 4 of acetate fiber
In；
(2) filter bag for installing adsorbent is sealed in the carrier shell 1 for being placed in sampler, and by about 1 carrier shell
Two parts fastening, then be placed in sewage conduct；
(3) it is placed in sewage conduct at least 12 hours, comes into full contact with Passive sampler with sewage；
After (4) 12 hours, Passive sampler is taken out, opens carrier shell 1, filter bag 4 is taken out, cleans surface with ultrapure water
It is placed in clean small beaker afterwards；
(5) the hydrochloric acid eluent of 0.08 mol/L is added into small beaker, completely submerges filter bag；
(6) beaker mouth is wrapped with aluminium foil, small beaker is placed in supersonic cleaning machine, carry out 20 points of extraction using ultrasound
Clock；
(7) filter bag is taken out, is put into another clean small beaker, the methanol of chromatographically pure is added, then is placed in ultrasonic clear
In washing machine, extraction 10 minutes is carried out using ultrasound；
(8) it eluent extracted will be sufficiently mixed twice, and stand 3 minutes, it is accurate to draw upper layer eluent 2mL, it uses
The centrifugal filtration tube filtering in 0.2 μm of aperture, takes filtered liquid, carries out experimental analysis.
Confirmatory experiment has been carried out to the utility model.Use methadone as representative target contaminant, in simulation sewage
Confirmatory experiment is carried out in pipeline, tests 5 batches of Passive samplers altogether, as the result is shown: the sewage containing 30 microgram methadones is delayed
Slow flow in pipes stops 12 hours in the duct, and the amount of the methadone finally eluted from adsorbent is 18.5 ± 2.1
Microgram, absorption-elution efficiency are 55-69%, and 12 hours adsorbances fully achieve the quantitative requirement of experiment detection.
It is target contaminant that micro methadone is used in this confirmatory experiment, under practical situations, sewage and earth's surface
The content of other pollutants can be much higher than this confirmatory experiment in water, while the time sampled in practical applications can be longer, rich
The amount of collection is also bigger.Therefore, this Passive sampler in practical applications, can satisfy and adopt to nonpolar organic pollutants in water
Collection demand.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (6)
1. a kind of Passive sampler acquired for nonpolar organic pollutants in sewer, including carrier shell (1), feature
Be: the carrier shell (1) is the small spindle-type in both ends broad in the middle, including upper and lower two separate structures, the two can be detained mutually
Tightly, the top and bottom end of the carrier shell (1) are plane, and have been evenly arranged respectively in the plane of top and bottom end multiple
Circular hole (2) is stained with a piece of polyvinylidene fluoride microporous barrier (3), institute on the inner wall of carrier shell (1) upper and lower ends respectively
The aperture for stating polyvinylidene fluoride microporous barrier (3) is 0.45 micron, and is provided between two panels polyvinylidene fluoride microporous barrier (3)
Filter bag (4), the filter bag (4) is interior to be filled with adsorbent, for the hydrophobic organic pollutant in absorption effluent.
2. a kind of Passive sampler acquired for nonpolar organic pollutants in sewer according to claim 1,
Be characterized in that: two separate structures up and down of the carrier shell (1) are using threaded connection.
3. a kind of Passive sampler acquired for nonpolar organic pollutants in sewer according to claim 2,
Be characterized in that: the diameter of the intermediate major part of the carrier shell (1) is 5cm, and it is highly 3cm that the diameter of both ends microcephaly, which is 3.5cm,.
4. a kind of Passive sampler acquired for nonpolar organic pollutants in sewer according to claim 3,
It is characterized in that: being evenly arranged with the circular hole that 24 diameters are 2mm in the plane of carrier shell (1) top and bottom end respectively
(2).
5. a kind of Passive sampler acquired for nonpolar organic pollutants in sewer according to claim 4,
Be characterized in that: the carrier shell (1) is specifically made of polytetrafluoroethylene (PTFE).
6. a kind of Passive sampler acquired for nonpolar organic pollutants in sewer according to claim 5,
Be characterized in that: the filter bag (4) selects acetate fiber to be made, and the size of filter bag (4) is the cm of 4cm × 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119719.7U CN208476590U (en) | 2018-07-16 | 2018-07-16 | A kind of Passive sampler acquired for nonpolar organic pollutants in sewer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119719.7U CN208476590U (en) | 2018-07-16 | 2018-07-16 | A kind of Passive sampler acquired for nonpolar organic pollutants in sewer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208476590U true CN208476590U (en) | 2019-02-05 |
Family
ID=65210850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821119719.7U Active CN208476590U (en) | 2018-07-16 | 2018-07-16 | A kind of Passive sampler acquired for nonpolar organic pollutants in sewer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208476590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507830A (en) * | 2018-07-16 | 2018-09-07 | 未名环境分子诊断（常熟）有限公司 | A kind of Passive sampler and the method for sampling for nonpolar organic pollutants acquisition in sewer |
-
2018
- 2018-07-16 CN CN201821119719.7U patent/CN208476590U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507830A (en) * | 2018-07-16 | 2018-09-07 | 未名环境分子诊断（常熟）有限公司 | A kind of Passive sampler and the method for sampling for nonpolar organic pollutants acquisition in sewer |
| CN108507830B (en) * | 2018-07-16 | 2024-03-26 | 未名环境分子诊断（常熟）有限公司 | Passive sampler and sampling method for collecting nonpolar organic pollutants in sewer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353560B (en) | Gathering device for gas released by water body and sampling method thereof | |
| CN102735500A (en) | Passive sampling technology aiming at anionic polar organic pollutant in water | |
| CN208476590U (en) | A kind of Passive sampler acquired for nonpolar organic pollutants in sewer | |
| CN108507830A (en) | A kind of Passive sampler and the method for sampling for nonpolar organic pollutants acquisition in sewer | |
| CN210604037U (en) | Environment detection sampler | |
| CN203203853U (en) | Liquid based thin-layer cell free settling and flaking device | |
| CN208459066U (en) | A kind of Passive sampler for the acquisition of hydrophily organic pollutant | |
| CN205103070U (en) | Water -soluble attitude heavy metal sampling collection device in atmospheric particulates | |
| CN208223897U (en) | A kind of sewage treatment sampler | |
| CN106323697B (en) | The method of sampling of atmosphere reactive gaseous mercury is carried out using passive sampling apparatus | |
| CN207894667U (en) | A kind of sewage sampling rapid extraction device | |
| CN107576544B (en) | Microporous filter membrane elution device and elution method | |
| CN106895994B (en) | Clay moisture extraction element | |
| CN214844280U (en) | Gas sampling device for environmental monitoring | |
| CN110530680B (en) | Portable sewage collection system for detecting environmental pollution | |
| CN201175471Y (en) | Disinfecting device of medical urine sample | |
| CN208206548U (en) | A kind of novel hydrophore | |
| CN111175093A (en) | Portable air dioxin sampling device and method based on membrane adsorption | |
| CN220251443U (en) | Water sample collection device | |
| CN218937876U (en) | Sampler for sewage monitoring | |
| CN206113372U (en) | Evacuated solar collector tube | |
| JP2003247919A (en) | Sampling device and sampling method for underwater pollutant | |
| CN211426002U (en) | Atmosphere extraction device | |
| JP2004177261A (en) | Device for collecting infinitesimal organic substance in water | |
| CN216284456U (en) | Sewage sample collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |