CN205333365U - Passive sample thief of polyurethane rainfall runoff - Google Patents
Passive sample thief of polyurethane rainfall runoff Download PDFInfo
- Publication number
- CN205333365U CN205333365U CN201620114089.9U CN201620114089U CN205333365U CN 205333365 U CN205333365 U CN 205333365U CN 201620114089 U CN201620114089 U CN 201620114089U CN 205333365 U CN205333365 U CN 205333365U
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- Prior art keywords
- runoff
- passive
- polyurethane
- pvc
- rainwater
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 35
- 239000004814 polyurethane Substances 0.000 title claims abstract description 35
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 26
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 26
- 229920000728 polyester Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000005070 sampling Methods 0.000 abstract description 23
- 238000001179 sorption measurement Methods 0.000 abstract description 13
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 241001672694 Citrus reticulata Species 0.000 description 8
- 239000000356 contaminant Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- OKISUZLXOYGIFP-UHFFFAOYSA-N 4,4'-dichlorobenzophenone Chemical compound C1=CC(Cl)=CC=C1C(=O)C1=CC=C(Cl)C=C1 OKISUZLXOYGIFP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a passive sample thief of polyurethane rainfall runoff, its characterized in that: the PVC sleeve pipe that uses vertical setting is the shell, respectively is provided with a PVC grid at PVC sheathed tube upper and lower both ends department, has the soft polyurethane foam of column at PVC sheathed tube inside packing, respectively is provided with a double-deck polyester single silk screen at the upper and lower both ends of soft polyurethane foam. The passive sampler for the polyurethane rainfall runoff is suitable for passive sampling of the rainfall runoff and operation monitoring of runoff treatment structures (such as a rainwater garden); polyurethane is used as an adsorbing material of the passive rainwater runoff sampler, so that the adsorption speed of semi-volatile organic matters in rainwater is high, the adsorption rate is stable, the adsorption capacity is large, the collection capacity of semi-volatile organic matters with the runoff concentration level is from months to years, the passive rainwater sampler can be used for passive sampling of single rainfall or long-term rainwater runoff, and the time accumulation characteristic of runoff pollutants can be reflected.
Description
Technical field
This utility model relates to the monitoring device of a kind of rainfall runoff Semi-volatile organism, belongs to environmental contaminants monitoring technical field。
Background technology
Along with point source pollutant is effectively controlled gradually, rainfall runoff is own through becoming the main cause receiving water pollution, and rainwater pollution controls to become a study hotspot of Urban Water Pollution Control。The sampling of rainwater it is in that at present about a difficult point of rainwater runoff pollution research, especially trace/contaminant trace species in rainwater, the such as Semi-volatile organism such as polycyclic aromatic hydrocarbon, DCBP, environmental hazard is big, content in rainwater is low (μ g/L or ng/L), and conventional method sampling generally requires a large amount of rainwater that gathers and carries out test in laboratory。The sampling of current rainwater is mainly by manually or automatically sampler, and the former needs to consume a large amount of manpower, and especially manually gathering rain sample in some extreme weathers has certain danger, and the sampling cost of automatic rain water sampler is big。Therefore exploiting economy, efficient, safe rainfall runoff Sampling techniques are significant to Urban Water Environment Environmental capacity。
The mechanism such as passive sampling technology refers to by retaining, adsorbing, diffusion gather object, do not need power consumption, can reaction contaminant time cumulation in the environment, economical and effective, be widely used at present in the sampling of the environmental contaminants such as air, subsoil water, river, ocean。But due to randomness and the unequal feature of spatial and temporal distributions of rainfall runoff, passive sampling technology also rarely has application in rainfall runoff is sampled at present。
Polyurethane foam is cheap, Semi-volatile organism adsorption efficiency is high, extensive use in the passive sampling of air, can effectively gather half volatile organic compounds in air, but existing passive air sampling device is the hydrodynamics characteristic according to air to be designed, be not suitable for rainfall runoff feature (such as intermittence, spatial and temporal distributions is unequal)。Current polyurethane is but without in the passive sampling being used in rainwater, and the rainwater passive sampling technology (including theory and practice utility model) also without system is studied。
Utility model content
For the deficiency that existing rainwater is manually or automatically sampled, the purpose of this utility model be to provide a kind of can monitor cost-effectively Semi-volatile organism in rainfall runoff pollute, again can the polyurethane rainfall runoff Passive sampler of long term monitoring rainwater treatment structures pollutant removal。
This utility model solves technical problem, adopts the following technical scheme that
This utility model polyurethane rainfall runoff Passive sampler, its construction features is in that: with the PVC sleeve pipe that is vertically arranged for shell, it is each provided with a PVC grid at the upper/lower terminal mouth place of described PVC sleeve pipe, being filled with column flexible polyurethane foam in the inside of described PVC sleeve pipe, the upper/lower terminal at described flexible polyurethane foam is each provided with pair of lamina polyester monofilament net。
This utility model polyurethane rainfall runoff Passive sampler, its construction features lies also in: be positioned at described PVC sleeve upper end mouth place PVC grid be arranged below effusion meter。
It is provided with reserved water level (being specifically located on effusion meter) between PVC grid and the double-layer polyester monofilament net of flexible polyurethane foam upper end at described PVC sleeve upper end mouth place。
Described flexible polyurethane foam is added with usefulness reference compound。
The height of described flexible polyurethane foam is 7-9cm。
This utility model is employing column flexible polyurethane foam is adsorbing material, to the Semi-volatile organism passive sampling in rainfall runoff, it does not have power consumption。Pass through the adsorption kinetic data, it is determined that flexible polyurethane foam is to the adsorption rate of the Semi-volatile organism of rainwater concentration and adsorption capacity。By arranging suitable polyurethane post height, the Semi-volatile organism in rainfall runoff is had higher adsorption rate by Passive sampler。Rainfall runoff is vertical-flow or diagonal flow type is by Passive sampler, and flexible polyurethane foam absorption Semi-volatile organism, the Semi-volatile organism in desorption polyurethane can record the cumulant of pollutant in rainfall runoff。Polyurethane marks a certain amount of usefulness reference compound (PRCs), the sampling rate escaping rate correction polyurethane rainwater Passive sampler according to PRCs, in conjunction with the runoff rate that effusion meter records, monitor rainwater runoff pollution substrate concentration。
When Passive sampler of the present utility model is for rainwater treatment structures, adopts the bushing type of self-mountable & dismountuble to arrange, conveniently pick and place。Adopt two Passive samplers with the use of, one is used in the place that becomes a mandarin, and one is used in water outlet place, to monitor the operational effect of rainwater treatment structures。Reserved water level design between the PVC grid and the double-layer polyester monofilament net of flexible polyurethane foam upper end at PVC sleeve upper end mouth place, reserved height of water level is consistent with monitoring point water level, the Passive sampler that monitoring becomes a mandarin can be made similar to the hydraulic characteristic of rainwater treatment structures, similar to the inflow-rate of water turbine of the Passive sampler of monitoring water outlet。
This utility model arranges PVC grid at PVC sleeve upper end mouth place, it is possible to intercept float bigger in rainfall runoff；Flexible polyurethane foam upper end arranges double-layer polyester monofilament net, intercepts the float that rainfall runoff is medium and small further, it is prevented that soft polyurethane ester blocks；Flexible polyurethane foam lower end arranges double-layer polyester monofilament net, except intercepting except the float of bottom, also plays support effect；PVC its lower end mouth place arranges PVC grid and plays support, crosses stream effect。
Compared with the prior art, the beneficial effects of the utility model are embodied in:
(1) polyurethane rainfall runoff Passive sampler of the present utility model is applicable to the passive sampling of rainfall runoff and the operational monitoring of runoff treatment structures (such as Rain Garden)；Adopt polyurethane as the adsorbing material of rainfall runoff Passive sampler, to in rainwater, the adsorption rate of Semi-volatile organism is fast, adsorption rate is stable, adsorption capacity is big, the Semi-volatile organism of runoff concentration level is had the collection capacity of several months or even several years, may be used for single rainfall or the passive sampling of long-term rain runoff, it is possible to the accumulated time feature of reflection Runoff contaminants。
(2) this utility model is added with a certain amount of usefulness reference compound (PRCs) in flexible polyurethane foam, the sampling rate escaping the rate correction passive device of polyurethane rainwater according to PRCs, the analysis result making sampler is more accurate, better effects if。
(3) Passive sampler of the present utility model adopts has the design of reserved water level and without reserved water level design two；When for runoff treatment structures passive samplings such as Rain Gardens, it is possible to respectively to becoming a mandarin and going out stream sampling, monitor its operational effect。
(4) cost of this utility model polyurethane rainfall runoff Passive sampler is low, and sampling process does not have power consumption, uses manpower and material resources sparingly。
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model polyurethane rainfall runoff Passive sampler, and wherein Fig. 1 (a) is the version arranged without reserved water level, and Fig. 1 (b) is the version having reserved water level to arrange；
Fig. 2 is the structural representation of PVC grid；
Fig. 3 is that polyurethane rainfall runoff Passive sampler of the present utility model is for detecting the scheme of installation of Rain Garden operational effect, wherein Fig. 3 (a) be Rain Garden become a mandarin place scheme of installation, Fig. 3 (b) is the scheme of installation in Rain Garden water outlet place；
Number in the figure: 1 is PVC sleeve pipe；2 is PVC grid；3 is flexible polyurethane foam；4 is double-layer polyester monofilament net；5 is effusion meter；6 is reserved water level；7 is polyurethane rainfall runoff Passive sampler；8 for assembling PVC display pipe；9 is Rain Garden medium。
Detailed description of the invention
As shown in Fig. 1 (a) and Fig. 1 (b), the polyurethane rainfall runoff Passive sampler of the present embodiment, be the PVC sleeve pipe 1 to be vertically arranged it is shell, it is each provided with a PVC grid 2 at the upper/lower terminal mouth place of PVC sleeve pipe 1, being filled with column flexible polyurethane foam 3 in the inside of PVC sleeve pipe 1, the upper/lower terminal at flexible polyurethane foam 3 is each provided with pair of lamina polyester monofilament net 4。The structural representation of PVC grid is as shown in Figure 2。
Be positioned at PVC sleeve upper end mouth place PVC grid be arranged below effusion meter 5。
When being embodied as, in order to adapt to different needs, the Passive sampler of the present embodiment adopts without reserved water level design (Fig. 1 (a)) and has reserved water level design (Fig. 1 (b)) two。As shown in Fig. 1 (b), reserved water level 6 is arranged between PVC grid and the double-layer polyester monofilament net of flexible polyurethane foam upper end at PVC sleeve upper end mouth place。Reserved water level is traditionally arranged to be 10-12cm, suitable with the reserved water level of runoff treatment structures。
Flexible polyurethane foam is added with usefulness reference compound (PRCs), the sampling rate escaping rate correction polyurethane rainwater Passive sampler according to PRCs, in conjunction with the runoff rate that effusion meter records, monitoring rainwater runoff pollution substrate concentration, the analysis result making sampler is more accurate, better effects if。
Generally, the height of flexible polyurethane foam 3 is set to 7-9cm。By arranging suitable polyurethane post height, the Semi-volatile organism in rainfall runoff is had higher adsorption rate and adsorption capacity by Passive sampler。
Illustrate the using method of the present embodiment polyurethane rainfall runoff Passive sampler: Fig. 3 is that the polyurethane rainfall runoff Passive sampler of the present embodiment is for detecting the schematic diagram of Rain Garden operational effect。During use, adopt two Passive samplers with the use of, one is used in the place that becomes a mandarin, and one is used in water outlet place。As shown in Fig. 3 (a), the polyurethane rainfall runoff Passive sampler 7 being arranged on the place of becoming a mandarin adopts the version having reserved water level, it is used for monitoring the Semi-volatile organism content that rainwater in Rain Garden becomes a mandarin, polyurethane rainfall runoff Passive sampler 7 is arranged on the upper end assembling PVC display pipe 8, assembles in PVC display pipe 8 and is filled with Rain Garden medium 9。As shown in Fig. 3 (b), the polyurethane rainfall runoff Passive sampler 7 being arranged on water outlet place adopts the version without reserved water level, the Semi-volatile organism content of stream is gone out for monitoring rainwater in Rain Garden, polyurethane rainfall runoff Passive sampler 7 is arranged on the lower end assembling PVC display pipe 8, and the upper end assembling PVC display pipe 8 is filled with Rain Garden medium 9。Rain Garden media depth is identical with the Rain Garden Effective medium degree of depth monitored。By contrasting the testing result becoming a mandarin and going out stream place, namely would know that the operational effect of Rain Garden。
Claims (5)
1. a polyurethane rainfall runoff Passive sampler, it is characterized in that: with the PVC sleeve pipe (1) that is vertically arranged for shell, it is each provided with a PVC grid (2) at the upper/lower terminal mouth place of described PVC sleeve pipe (1), being filled with column flexible polyurethane foam (3) in the inside of described PVC sleeve pipe (1), the upper/lower terminal at described flexible polyurethane foam (3) is each provided with pair of lamina polyester monofilament net (4)。
2. polyurethane rainfall runoff Passive sampler according to claim 1, it is characterised in that: be positioned at described PVC sleeve upper end mouth place PVC grid be arranged below effusion meter (5)。
3. polyurethane rainfall runoff Passive sampler according to claim 1, it is characterised in that: between PVC grid and the double-layer polyester monofilament net of flexible polyurethane foam upper end at described PVC sleeve upper end mouth place, it is provided with reserved water level (6)。
4. polyurethane rainfall runoff Passive sampler according to claim 1, it is characterised in that: in described flexible polyurethane foam, it is added with usefulness reference compound。
5. polyurethane rainfall runoff Passive sampler according to claim 1, it is characterised in that: the height of described flexible polyurethane foam (3) is 7-9cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114089.9U CN205333365U (en) | 2016-02-02 | 2016-02-02 | Passive sample thief of polyurethane rainfall runoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114089.9U CN205333365U (en) | 2016-02-02 | 2016-02-02 | Passive sample thief of polyurethane rainfall runoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333365U true CN205333365U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620114089.9U Withdrawn - After Issue CN205333365U (en) | 2016-02-02 | 2016-02-02 | Passive sample thief of polyurethane rainfall runoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205333365U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628449A (en) * | 2016-02-02 | 2016-06-01 | 安徽大学 | Passive sample thief of polyurethane rainfall runoff |
| CN107462435A (en) * | 2017-08-01 | 2017-12-12 | 南京理工大学 | It is a kind of using cyclodextrin polymeric membrane as the dynamics passive sampling apparatus with reference to phase |
| CN107560891A (en) * | 2017-09-05 | 2018-01-09 | 大连民族大学 | The passive sampling apparatus of polar contaminants in a kind of collection water body |
-
2016
- 2016-02-02 CN CN201620114089.9U patent/CN205333365U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628449A (en) * | 2016-02-02 | 2016-06-01 | 安徽大学 | Passive sample thief of polyurethane rainfall runoff |
| CN105628449B (en) * | 2016-02-02 | 2019-04-12 | 安徽大学 | Passive sample thief of polyurethane rainfall runoff |
| CN107462435A (en) * | 2017-08-01 | 2017-12-12 | 南京理工大学 | It is a kind of using cyclodextrin polymeric membrane as the dynamics passive sampling apparatus with reference to phase |
| CN107560891A (en) * | 2017-09-05 | 2018-01-09 | 大连民族大学 | The passive sampling apparatus of polar contaminants in a kind of collection water body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20190412 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20190412 |