CN103674668A - Online pre-separation and enrichment device for pollutants in large-volume water sample - Google Patents
Online pre-separation and enrichment device for pollutants in large-volume water sample Download PDFInfo
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- CN103674668A CN103674668A CN201310668027.3A CN201310668027A CN103674668A CN 103674668 A CN103674668 A CN 103674668A CN 201310668027 A CN201310668027 A CN 201310668027A CN 103674668 A CN103674668 A CN 103674668A
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Abstract
The invention discloses an online pre-separation and enrichment device for pollutants in a large-volume water sample. The device is formed by connecting a shell-and-tube-type hollow fiber ultra-filtration membrane component, a shell-and-tube-type hollow fiber separation enrichment device, flow adjustment valves of each pipeline, a peristaltic pump and a liquid collection bottle through pipelines. According to the device, the transportation and the carrying of the large-volume water sample are reduced; the device is not required to be guarded by human; multi-point sampling detection and field treatment can be realized; the cost of manpower and the cost of materials are reduced; the device is convenient to popularize and use in each environment monitoring station.
Description
Technical field
The invention belongs to water quality monitoring field, relate in particular to the online pre-separation enriching apparatus of pollutant in a kind of water sample with bulk mass.
Background technology
In water quality monitoring, collection in worksite water sample is an extremely important and crucial job.According to the relevant national standard of water sampling, often need to carry out multidraw in representative position, so sample size is conventionally more.The sample having gathered is subject to the limit value of the factors such as transportation, storage, so the sample size gathering conventionally can not be too large.For some pollutant (persistence organic pollutant), because its concentration in water is lower, the restriction of instrument testing conditions in addition, so these water samples are when lab analysis, pollutant is often difficult to detect, thereby has affected the supervision of some persistence organic pollutant and control.
For this problem, solution is exactly to strengthen the collection capacity of water sample, is transported to assay laboratory and detects after having gathered.This method can improve the sensing range to pollutant levels in water sample really, but also exists water sampling amount too large, and water sampling ground distance analysis testing laboratory is far away in addition, thereby has increased the labour intensity of sampling, has increased the cost of sample collection.
In addition, the so many water samples that collect, need to experience several times of liquid liquid extraction, not only need to consume a large amount of volatile organic solvents, and because extract remainder also needs through repeatedly shifting, result is easy to pollute logistics and loses, and causes the inaccurate problem of water pollutant concentration detected value.The more important thing is, the use of a large amount of volatile organic solvents, be easy to environment to cause secondary pollution, therefore in the urgent need to a kind of new equipment for water sample with bulk mass pre-treatment, preferably can realize on-site sampling, pre-service on the spot, without or the less sample of number of times shift, and through the simple process a little of the sample after separated, enrichment, just can directly carry out instrumental analysis.
summary of the invention
The object of the present invention is to provide the online pre-separation enriching apparatus of pollutant in a kind of water sample with bulk mass, realize, enrichment separated to the continuous flow of pollutant in water sample with bulk mass, simplify the step of sampling and analysing operation.
The present invention has adopted following technical proposals: the online pre-separation enriching apparatus of pollutant in a kind of water sample with bulk mass, comprise water sample storing bottle, water sample sample introduction peristaltic pump, water sample pre-filtering flow control valve, shell-and-tube polysulfone hollow fiber ultrafiltration membrane system, filtered fluid storing bottle, filtered fluid sample introduction peristaltic pump, filtered fluid sample introduction flow control valve, shell-and-tube Middle hollow fiber membrane enricher, extract flow control valve, extract peristaltic pump, extract receiving flask, it is characterized in that described water sample storing bottle connects water sample sample introduction peristaltic pump by pipeline, after water sample sample introduction peristaltic pump, connect water sample pre-filtering flow control valve, be connected to again shell-and-tube polysulfone hollow fiber ultrafiltration membrane system, on shell-and-tube polysulfone hollow fiber ultrafiltration membrane system, there is the reflux line that leads to water sample storing bottle, the filtrate port of shell-and-tube polysulfone hollow fiber ultrafiltration membrane system is connected to filtered fluid storing bottle through pipeline, filtered fluid storing bottle connects filtered fluid sample introduction peristaltic pump by pipeline, filtered fluid sample introduction peristaltic pump connects filtered fluid sample introduction flow control valve, be connected to shell-and-tube Middle hollow fiber membrane enricher, shell-and-tube Middle hollow fiber membrane enricher is provided with the reflux line that leads to filtered fluid storing bottle again, the extract outlet of shell-and-tube Middle hollow fiber membrane enricher is connected to extract receiving flask, on extract receiving flask, be connected with extract peristaltic pump, after extract peristaltic pump, be connected with extract flow control valve, extract flow control valve is connected to shell-and-tube Middle hollow fiber membrane enricher, forms closed-loop path.
Hollow-fibre membrane inner chamber two of described shell-and-tube Middle hollow fiber membrane enricher is all open state, and there are two runners membrane module inside, and one is the runner along hollow fiber film thread inner chamber; One is the runner in hollow-fibre membrane outside.
Described shell-and-tube Middle hollow fiber membrane enricher inner filling polypropylene or the hydrophobic hollow fiber film thread such as tygon or teflon.
Technique effect of the present invention: reduced the transportation of water sample with bulk mass and carried, this device, without people guard, can detect by multidraw, and site disposal, has reduced human and material resources cost, facilitates Ge environmental monitoring station to promote the use of.Through checking, the enrichment times of the contaminants in drainage of Dui Mou factory reaches 389 ~ 464, and the recovery reaches 77 ~ 92%.
accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Water sample storing bottle 2, water sample sample introduction peristaltic pump 3, water sample pre-filtering flow control valve 4, shell-and-tube polysulfone hollow fiber ultrafiltration membrane system 5, filtered fluid storing bottle 6, filtered fluid sample introduction peristaltic pump 7, filtered fluid sample introduction flow control valve 8, shell-and-tube Middle hollow fiber membrane enricher 9, extract flow control valve 10, extract peristaltic pump 11, extract receiving flask in the drawings, 1.
Embodiment
For the ease of understanding, below in conjunction with accompanying drawing and preferred embodiment, the present invention is further illustrated.
As shown in Figure 1, the online pre-separation enriching apparatus of pollutant in a kind of water sample with bulk mass, comprise water sample storing bottle 1, water sample sample introduction peristaltic pump 2, water sample pre-filtering flow control valve 3, shell-and-tube polysulfone hollow fiber ultrafiltration membrane system 4, filtered fluid storing bottle 5, filtered fluid sample introduction peristaltic pump 6, filtered fluid sample introduction flow control valve 7, shell-and-tube Middle hollow fiber membrane enricher 8, extract flow control valve 9, extract peristaltic pump 10, extract receiving flask 11, it is characterized in that described water sample storing bottle 1 connects water sample sample introduction peristaltic pump 2 by pipeline, the rear connection water sample pre-filtering of water sample sample introduction peristaltic pump 2 flow control valve 3, be connected to again shell-and-tube polysulfone hollow fiber ultrafiltration membrane system 4, on shell-and-tube polysulfone hollow fiber ultrafiltration membrane system 4, there is the reflux line that leads to water sample storing bottle 1, the filtrate port of shell-and-tube polysulfone hollow fiber ultrafiltration membrane system 4 is connected to filtered fluid storing bottle 5 through pipeline, filtered fluid storing bottle 5 connects filtered fluid sample introduction peristaltic pump 6 by pipeline, filtered fluid sample introduction peristaltic pump 6 connects filtered fluid sample introduction flow control valve 7, be connected to shell-and-tube Middle hollow fiber membrane enricher 8, shell-and-tube Middle hollow fiber membrane enricher 8 is provided with the reflux line that leads to filtered fluid storing bottle 5 again, the extract outlet of shell-and-tube Middle hollow fiber membrane enricher 8 is connected to extract receiving flask 11, on extract receiving flask 11, be connected with extract peristaltic pump 10, after extract peristaltic pump, 10 are connected with extract flow control valve 9, extract flow control valve 9 is connected to shell-and-tube Middle hollow fiber membrane enricher 8, forms closed-loop path.Hollow-fibre membrane inner chamber two of described shell-and-tube Middle hollow fiber membrane enricher 8 is all open state, and there are two runners membrane module inside, and one is the runner along hollow fiber film thread inner chamber; One is the runner in hollow-fibre membrane outside.The inner filling polypropylene of described shell-and-tube Middle hollow fiber membrane enricher 8 or the hydrophobic hollow fiber film thread such as tygon or teflon.
During work, water sample is deposited in water sample storing bottle 1, by water sample sample introduction peristaltic pump 2, is pumped into after shell-and-tube polysulfone hollow fiber ultrafiltration membrane system 4, filters out bulky grain thing and impurity wherein, deposits in filtered fluid storing bottle 5.On-stream pressure is realized by the water sample pre-filtering flow control valve 3 in loop.Organic solvent extract is deposited in extract receiving flask 11.Water sample is after filtering sent in shell-and-tube Middle hollow fiber membrane enricher 8 by water sample sample introduction peristaltic pump 6, from shell-side, flows through.Extract in extract receiving flask 11 is sent in shell-and-tube Middle hollow fiber membrane enricher 8 through extract peristaltic pump 10, from pipe effluent mistake.The combination on the hole wall of the hollow fiber film thread of shell-and-tube Middle hollow fiber membrane enricher 8 of water sample and extract.Water sample and extract form two-phase interface in hydrophobic hollow-fibre membrane, and auto extractive occurs on interface, and the target contaminant in water sample is extracted liquid and is extracted in extract.During extraction, by adjusting filtered fluid sample introduction flow control valve 7 and extract flow control valve 9, select suitable water sample flow velocity and extract flow velocity, thereby realize the maximum recovering effect of pollutant.After separation and concentration process finishes, the whole taking-ups by extract from extract receiving flask 11, deposit in sample collection bottle, send assay laboratory back to, through simple process, can carry out instrumental analysis.
The water sample that overall process only need detect needs is got and is deposited in water sample storing bottle 1, open the switch of water sample sample introduction peristaltic pump 2, open filtered fluid sample introduction peristaltic pump 6 and extract peristaltic pump 10, regulate water sample pre-filtering flow control valve 3, filtered fluid sample introduction flow control valve 7 and extract flow control valve 9, just can realize pre-service, separation and the enrichment of sample, finally obtain the detection sample after enrichment method.The sample size that need to carry is little, and labour intensity is low, after simple process, can carry out immediately instrumental analysis, saves transportation cost and sampling cost.
Enumerate a concrete operations example below.
By 20L sampling bucket Mou enterprise freeing port, accurately measure 20L water sample, the water inlet pipe in pollutant ON-LINE SEPARATION enriching apparatus in water sample with bulk mass is inserted in sampling bucket (as water sample storing bottle 1).Accurately measure 1000mL toluene solvant and be placed in extract receiving flask.Open water sample sample introduction peristaltic pump 2, allow water sample with in 1L/min inflow pipe shell-type polysulfone hollow fiber ultrafiltration membrane system 4.In liquid to be filtered storing bottle 5, have after the feed liquid enough circulating in pipeline, open filtered fluid sample introduction peristaltic pump 6 and extract peristaltic pump 10, allow water sample after treatment with 0.5L/min, flow through the shell side of shell-and-tube Middle hollow fiber membrane enricher 8, extract flows through the tube side of shell-and-tube Middle hollow fiber membrane enricher 8 with 0.3L/min, the flow in different six roads is by regulating the aperture of the valve in each self-loop to realize, after water sample is finished dealing with in bucket, close water sample sample introduction peristaltic pump 2.After the filtered fluid separation and concentration of liquid to be filtered storing bottle 5 finishes, close filtered fluid sample introduction peristaltic pump 6 and extract peristaltic pump 10, and the extract in extract receiving flask 11 is poured in sample collection bottle in the lump together with the residual liquid in extraction pipeline, take back lab analysis.
Claims (4)
1. the online pre-separation enriching apparatus of pollutant in a water sample with bulk mass, comprise water sample storing bottle, water sample sample introduction peristaltic pump, water sample pre-filtering flow control valve, shell-and-tube polysulfone hollow fiber ultrafiltration membrane system, filtered fluid storing bottle, filtered fluid sample introduction peristaltic pump, filtered fluid sample introduction flow control valve, shell-and-tube Middle hollow fiber membrane enricher, extract flow control valve, extract peristaltic pump, extract receiving flask, it is characterized in that described water sample storing bottle connects water sample sample introduction peristaltic pump by pipeline, after water sample sample introduction peristaltic pump, connect water sample pre-filtering flow control valve, be connected to again shell-and-tube polysulfone hollow fiber ultrafiltration membrane system, on shell-and-tube polysulfone hollow fiber ultrafiltration membrane system, there is the reflux line that leads to water sample storing bottle, the filtrate port of shell-and-tube polysulfone hollow fiber ultrafiltration membrane system is connected to filtered fluid storing bottle through pipeline, filtered fluid storing bottle connects filtered fluid sample introduction peristaltic pump by pipeline, filtered fluid sample introduction peristaltic pump connects filtered fluid sample introduction flow control valve, be connected to shell-and-tube Middle hollow fiber membrane enricher, shell-and-tube Middle hollow fiber membrane enricher is provided with the reflux line that leads to filtered fluid storing bottle again, the extract outlet of shell-and-tube Middle hollow fiber membrane enricher is connected to extract receiving flask, on extract receiving flask, be connected with extract peristaltic pump, after extract peristaltic pump, be connected with extract flow control valve, extract flow control valve is connected to shell-and-tube Middle hollow fiber membrane enricher, forms closed-loop path.
2. the online pre-separation enriching apparatus of pollutant in water sample with bulk mass according to claim 1, the hollow-fibre membrane inner chamber two that it is characterized in that described shell-and-tube Middle hollow fiber membrane enricher is all open state, there are two runners membrane module inside, and one is the runner along hollow fiber film thread inner chamber; One is the runner in hollow-fibre membrane outside.
3. the online pre-separation enriching apparatus of pollutant in water sample with bulk mass according to claim 1 and 2, is characterized in that the hydrophobic hollow fiber film thread of the inner filling of described shell-and-tube Middle hollow fiber membrane enricher.
4. the online pre-separation enriching apparatus of pollutant in water sample with bulk mass according to claim 3, is characterized in that described hollow fiber film thread is polypropylene, tygon or teflon.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179773A (en) * | 2015-05-06 | 2016-12-07 | 中国科学院烟台海岸带研究所 | The continuous flow separation flotation unit of a kind of microparticle plastics and method |
| CN109115555A (en) * | 2018-10-15 | 2019-01-01 | 浙江省海洋水产研究所 | A kind of bay aromatic hydrocarbon enrichment facility |
| CN109701393A (en) * | 2019-01-01 | 2019-05-03 | 中国人民解放军63653部队 | Underground hydrocolloid original position tangential flow ultra-filtration unit |
| CN110470808A (en) * | 2018-05-11 | 2019-11-19 | 中国石油化工股份有限公司 | Water quality many reference amounts detection device and detection method based on manual injector |
| CN114935484A (en) * | 2022-05-25 | 2022-08-23 | 南京大学 | Low-carbon and high-efficiency field rapid enrichment and separation device and method for large-volume water sample |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1552499A (en) * | 2003-05-27 | 2004-12-08 | 中国科学院生态环境研究中心 | Memberane extracting method for trace organic pollutant in water |
| CN102062711A (en) * | 2010-12-08 | 2011-05-18 | 济南市供排水监测中心 | Organic pollutant enriching device and method for pretreatment of water sample with bulk mass |
| CN102507263A (en) * | 2011-09-28 | 2012-06-20 | 中持（北京）环保发展有限公司 | Sampling device for large-volume water sample of semi-volatile organic compounds |
| CN102583649A (en) * | 2012-02-24 | 2012-07-18 | 中国环境科学研究院 | Method and device for continuously extracting organic nitrogen in water body |
| CN102875352A (en) * | 2011-07-13 | 2013-01-16 | 薛啸 | Treatment process for wastewater of acetic acid |
| CN202676533U (en) * | 2012-06-01 | 2013-01-16 | 广东产品质量监督检验研究院 | Low-cost organic contaminant gathering device used for large-sized water sample pretreatment |
-
2013
- 2013-12-11 CN CN201310668027.3A patent/CN103674668B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1552499A (en) * | 2003-05-27 | 2004-12-08 | 中国科学院生态环境研究中心 | Memberane extracting method for trace organic pollutant in water |
| CN102062711A (en) * | 2010-12-08 | 2011-05-18 | 济南市供排水监测中心 | Organic pollutant enriching device and method for pretreatment of water sample with bulk mass |
| CN102875352A (en) * | 2011-07-13 | 2013-01-16 | 薛啸 | Treatment process for wastewater of acetic acid |
| CN102507263A (en) * | 2011-09-28 | 2012-06-20 | 中持（北京）环保发展有限公司 | Sampling device for large-volume water sample of semi-volatile organic compounds |
| CN102583649A (en) * | 2012-02-24 | 2012-07-18 | 中国环境科学研究院 | Method and device for continuously extracting organic nitrogen in water body |
| CN202676533U (en) * | 2012-06-01 | 2013-01-16 | 广东产品质量监督检验研究院 | Low-cost organic contaminant gathering device used for large-sized water sample pretreatment |
Non-Patent Citations (1)
| Title |
|---|
| 甲苯-TNT-水体系膜萃取模型的研究: "李健生", 《南京理工大学学报》, vol. 24, no. 4, 31 August 2000 (2000-08-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179773A (en) * | 2015-05-06 | 2016-12-07 | 中国科学院烟台海岸带研究所 | The continuous flow separation flotation unit of a kind of microparticle plastics and method |
| CN106179773B (en) * | 2015-05-06 | 2018-09-21 | 中国科学院烟台海岸带研究所 | A kind of continuous flowing separating flotation device and method of microparticle plastics |
| CN110470808A (en) * | 2018-05-11 | 2019-11-19 | 中国石油化工股份有限公司 | Water quality many reference amounts detection device and detection method based on manual injector |
| CN109115555A (en) * | 2018-10-15 | 2019-01-01 | 浙江省海洋水产研究所 | A kind of bay aromatic hydrocarbon enrichment facility |
| CN109115555B (en) * | 2018-10-15 | 2021-02-19 | 浙江省海洋水产研究所 | Bay aromatic hydrocarbon enrichment facility |
| CN109701393A (en) * | 2019-01-01 | 2019-05-03 | 中国人民解放军63653部队 | Underground hydrocolloid original position tangential flow ultra-filtration unit |
| CN109701393B (en) * | 2019-01-01 | 2021-03-02 | 中国人民解放军63653部队 | Underground water colloid in-situ tangential flow ultrafiltration device |
| CN114935484A (en) * | 2022-05-25 | 2022-08-23 | 南京大学 | Low-carbon and high-efficiency field rapid enrichment and separation device and method for large-volume water sample |
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