CN108196021A - A kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its control method - Google Patents
A kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its control method Download PDFInfo
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- CN108196021A CN108196021A CN201711408003.9A CN201711408003A CN108196021A CN 108196021 A CN108196021 A CN 108196021A CN 201711408003 A CN201711408003 A CN 201711408003A CN 108196021 A CN108196021 A CN 108196021A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1806—Water biological or chemical oxygen demand (BOD or COD)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Water organic contamination in water
Abstract
The invention discloses a kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its control methods, are related to groundwater monitoring, water sampling technical field.The present invention includes the control active station being set on ground, representative water sample judges acquisition system and the online in-situ monitoring system for being connect and being placed in well under groundwater level with rope with control active station；Representative water sample judges that acquisition system is connect by water pipe with the suction pump under water water level located underground；Water pump is connect by water pipe with backwater collector, water sample collector, and representative water sample judges that the online spectral water quality monitor two of acquisition system and conventional parameter Water Test Kits two are used to monitor, analyze backwater collector, the water in water sample collector.It is considered herein that being the fresh water sample in water-bearing layer in order to ensure monitoring, water sample representativeness is judged with multidimensional, multi-point water quality parameter stabilization to water sampling.In-depth monitoring, sampling technique are integrated, and it is uncertain to greatly reduce acquisition of information in situ.
Description
Technical field
The present invention relates to a kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its controlling parties
Method is related to groundwater monitoring, water sampling technical field.
Background technology
Ground water Quality Survey and water sampling technical research last many decades, produce a series of instrument and equipment and skill
Art method realizes on-line monitoring and the representative water sample of acquisition, is its target to obtain underground water original position information.The 1990s
Begin, conventional parameter Water Test Kits has researched and developed maturation, which is placed directly in well, realizes water temperature, dissolved oxygen
(DO), the on-line monitoring of the conventional water quality parameter such as conductivity, oxidation-reduction potential (ORP), pH, turbidity, indicates quality of groundwater
Overall status；In recent years, the online spectral water quality monitor hair of ultraviolet/visible spectrophotometer (UV-Vis spectrometers)
Exhibition reaches its maturity, the COD (COD) of underground water, biochemical oxygen demand (BOD) (BOD), total organic carbon (TOC), dissolved organic carbon
(DOC), benzene homologues (BTX：Benzene,toluene,xylene), three nitrogen (nitric acid, nitrous acid, ammonia nitrogen), the characterizations such as total suspended matter (TSS)
A point parameter online is studied to realize already.In terms of water sampling, well-flushing is the key that ensure sample representativeness, is generally adopted in the past
It is sampled with 3-5 times of well casing internal stagnant water volume well-flushing；Predominantly meet acquisition easily by disturbance polluted underground water sample, (particularly wave
Hair property organic matter (VOCs)) demand, in the early 1990s, US EPA and ASTM start to recommend it is (general using low discharge
0.1-0.5L/min) air pocket pump well-flushing sampling technique (Low flow rate purging and sampling), drawdown
0.1m is usually no more than, extraction water is measured with electrochemistry water quality monitor, (the general 5min tests after conventional water quality parameter stabilization
Frequency, continuously variation is no more than following range three times：PH, ± 0.1；Conductivity, ± 3%；ORP, ± 10mV；DO, ± 10%；It is turbid
Degree, ± 10%), it is considered as the fresh water sample in water-bearing layer, implements sampling.
However, applicant thinks that existing monitoring and sampling technique still have as follows not in acquisition underground water original position message context
Foot：
(1) the not fresh water sample in water-bearing layer of on-line monitoring, although monitoring instrument is positioned in well, but monitoring process
In not well-flushing, what is surveyed is the water quality of well casing internal stagnant water；
(2) conventional parameter judges there is uncertainty, particularly polluted underground water whether water sample is fresh, has with nonaqueous phase
For machine object, conventional water quality index stabilization does not necessarily mean that organic matter reaches stable, and particularly some attention rates are high, relatively dense
Spending low target contaminant (such as benzene homologues) does not often cause conventional parameter significantly to respond；
(3) underground water on-line monitoring, sample devices integration mode problem：With the higher U.S. QED low discharge gas of degree of popularization
Subject to capsule pump well-flushing sample devices, only test water quality in water outlet, None- identified water sample from well to the variation of water outlet, and water
Matter and sample devices etc. do not set up automation communication.
Based on this, it is considered herein that monitoring water quality on line answers well-flushing, to ensure, monitoring is the fresh water sample in water-bearing layer, and water
More need to water sample representativeness be judged with multidimensional, multi-point water quality parameter stabilization before sample acquisition.In-depth monitoring, sampling technique integration collection
Into being to reduce the probabilistic key of acquisition of information in situ.
Invention content
The technical problems to be solved by the invention are to provide a kind of underground water on-line monitoring, representative water sampling integration
Self-con-tained unit, it is intended to solve the problem typical of on-line monitoring, acquisition water sample, that is, ensure monitoring and acquisition information closer to aqueous
Layer actual conditions.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of underground water on-line monitoring, representativeness
Water sampling integration self-con-tained unit, it is characterised in that control active station, representative water sample including being set on ground judge to adopt
It collecting system and is connect with rope with control active station and is placed in well the online in-situ monitoring system under groundwater level, institute
Control active station is stated to communicate with online situ detection system；The representativeness water sample judges acquisition system by water pipe with being located at ground
Suction pump connection under lower water water level；The representativeness water sample judge acquisition system set backwater collector, water sample collector,
Line spectrum water quality monitor two, conventional parameter Water Test Kits two；The online in-situ monitoring system is included in line spectrum water quality
Monitor one, conventional parameter Water Test Kits one；The online spectral water quality monitor two, conventional parameter Water Test Kits two with
Control active station communication；The online spectral water quality monitor one, conventional parameter Water Test Kits one pass through built-in channel radio
Interrogate module and control active station communication；The water pump is connect by water pipe with backwater collector, water sample collector, described in linear light
Spectrum water quality monitor two, conventional parameter Water Test Kits two are used to monitor, analyze backwater collector, the water in water sample collector.
Further technical solution is, the suction pump, online spectral water quality monitor one, conventional parameter water analysis
Instrument one is integrated in permeable instrument container, and the permeable instrument container is by rope suspensions under groundwater level in well.
Further technical solution is that the water pipe is equipped with flowmeter.
Further technical solution is that the control active station is equipped with the turntable for collecting water pipe, rope.
Further technical solution is that the conventional parameter Water Test Kits one, two can measure conventional water quality parameter packet
Include water temperature, dissolved oxygen, conductivity, oxidation-reduction potential, pH, turbidity.
Further technical solution is that the online spectral water quality monitor one, two measures characteristic chemical composition parameter
Including measuring COD, benzene homologues, total organic carbon, three nitrogen, total suspended matter.
Further technical solution is that the flowmeter is communicated with control active station.
Further technical solution is that a kind of underground water is monitored on-line, representative water sampling integration self-con-tained unit
Control method, which is characterized in that include the following steps：Active station is controlled to start suction pump, is provided according to low discharge acquisition water sample,
Water level is monitored, and pass through data communication network and be transmitted to control active station with conventional parameter Water Test Kits one, automatically controls water
Potential drop is no more than 0.1m deeply, prevents hydraulic pressure rapid drawdown from escape volatile organic matter；The rate of discharge of groundwater is monitored, and pass through with flowmeter
Data communication network is transmitted to control active station, and automatic control flow avoids big flow from drawing water to underground in 0.1-0.5L/min
The disturbance of water sample；With underground in conventional parameter Water Test Kits one, one online in-situ monitoring well of online spectral water quality monitor
Water water quality, after water quality parameter stabilization, test frequency is primary for 5min, and continuously variation is no more than following range three times：pH：±
0.1；Conductivity：± 3%；ORP：±10mV；DO, turbidity, COD, biochemical oxygen demand (BOD), total organic carbon, benzene homologues, three
Nitrogen, total suspended matter ± 10%, it is underground water water quality information in situ that control active station records the time point data automatically；Often
The water quality of parameter Water Test Kits two, two online dystopy of online spectral water quality monitor monitoring extraction water is advised, treats that water quality parameter is steady
After fixed, and with online in-situ monitoring data without significant difference, depending on after drawing water water quality it is uninfluenced, then active station is controlled to open automatically
It opens water sample collector and collects water sample, backwater before is collected in backwater collector, prevents backwater pollution water sample collector in well,
It is representative to influence water sample.
It is using advantageous effect caused by above-mentioned technical proposal：It is considered herein that it is water-bearing layer in order to ensure monitoring
Fresh water sample judges water sample representativeness to water sampling with multidimensional, multi-point water quality parameter stabilization.In-depth monitoring, sampling technique
It is integrated, it is uncertain to greatly reduce acquisition of information in situ.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structure diagram of the present invention；
1st, suction pump；2nd, water pipe；3rd, ground；4th, flowmeter；5th, conventional parameter Water Test Kits one；6th, online spectral water quality
Monitor one；7th, permeable instrument container；8th, well；9th, groundwater level；10th, rope；11st, active station is controlled；12nd, conventional parameter water quality
Analyzer two；13rd, online spectral water quality monitor two；14th, backwater collector；15th, water sample collector.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented using other different from other manner described here, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
The invention discloses a kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit, feature exists
Judge acquisition system in the control active station including being set on ground, representative water sample and connect with control active station cable
It connects and is placed in well the online in-situ monitoring system under groundwater level；The representativeness water sample judges that acquisition system passes through water pipe
It is connect with the suction pump under water water level located underground；The representativeness water sample judges acquisition system setting backwater collector, water sample
Collector, online spectral water quality monitor two, conventional parameter Water Test Kits two；The online in-situ monitoring system includes online
Spectral water quality monitor one, conventional parameter Water Test Kits one；The online spectral water quality monitor two, conventional parameter water quality point
Analyzer two and control active station communication；The online spectral water quality monitor one, conventional parameter Water Test Kits one are by built-in
Wireless communication module with control active station communication；The water pump is connect by water pipe with backwater collector, water sample collector, institute
Online spectral water quality monitor two, conventional parameter Water Test Kits two are stated for monitoring, analyzing backwater collector, water sample collector
Interior water.
Preferably, the suction pump, online spectral water quality monitor one, conventional parameter Water Test Kits one are integrated in permeable
In instrument container, the permeable instrument container is by rope suspensions under groundwater level in well.
Preferably, the water pipe is equipped with flowmeter.
Preferably, the control active station is equipped with the turntable for collecting water pipe, rope.
Preferably, the conventional parameter Water Test Kits one, two can measure conventional water quality parameter include water temperature, dissolved oxygen,
Conductivity, oxidation-reduction potential, pH, turbidity.
Preferably, the online spectral water quality monitor one, two measures characteristic chemical composition parameter and includes measuring chemical need
Oxygen amount, benzene homologues, total organic carbon, three nitrogen, total suspended matter.
Preferably, the flowmeter and control active station communication.
The present invention is as shown in Figure 1, it includes：Suction pump 1, at work suction pump 1 connect power supply, water receiving pipe 2, water pipe 2
To ground 3, flowmeter 4 is connected, conventional parameter Water Test Kits 1, online spectral water quality monitor 1 are online prison in situ
Examining system；Suction pump 1, conventional parameter Water Test Kits 1, online spectral water quality monitor 1 are installed on permeable instrument container 7
In, it is placed in well 8 under groundwater level 9, permeable instrument container 7 is passed through built-in wireless with 10 connection control operation station 11 of rope
Communication module is communicated.After water pipe 2 is connect with flowmeter 4, terminal joint setting conventional parameter Water Test Kits 2 12,
Line spectrum water quality monitor 2 13 forms representative water sample and judges acquisition system；Its backwater collected respectively with underground water is collected
Device 14, water sample collector 15 connect, and control active station 11 connects the instrument of all components by data communication network.
The key instrument model and location parameter that the present invention selects are as follows：
Suction pump：Canadian 407 type air pocket pumps of Solinst Integra；
Conventional parameter Water Test Kits one, two：IN-SITU Aqua TROLL 400 multiparameter water quality analyzers in the U.S. are surveyed
Determine liquid level and hydraulic pressure (absolute pressure), pH, ORP, fluorescence method dissolved oxygen, conductance, salinity, temperature；
Online spectral water quality monitor one, two：Austrian s::can spectro::LyserTM continuous spectrum analyzers,
Measure COD (CODCr), biochemical oxygen demand (BOD) (BOD), total organic carbon (TOC), benzene homologues (BTX：Benzene, toluene, diformazan
Benzene), three nitrogen (NO3-N、NO2-N、NH4- N), total suspended matter (TSS)；
Control DCS system built in active station.
Implementation steps of the present invention are as follows：Active station 11 is controlled to start suction pump 1, according to low discharge acquisition water sample regulation, with normal
It advises parameter Water Test Kits 1 and monitors water level, and pass through data communication network and be transmitted to control active station 11, automatic control water level
Drawdown is no more than 0.1m, prevents hydraulic pressure rapid drawdown from escape VOCs volatile organic matters；The rate of discharge of groundwater is monitored with flowmeter 4, and
Control active station 11 is transmitted to by data communication network, automatic control flow avoids big flow pumping in 0.1-0.5L/min
Disturbance of the water to groundwater sample；With conventional parameter Water Test Kits 1, the online prison in situ of online spectral water quality monitor 1
Quality of groundwater in well logging 8, (5min test frequencies, continuously variation is no more than following range three times after water quality parameter stabilization：
PH, ± 0.1；Conductivity, ± 3%；ORP, ± 10mV；DO, turbidity, COD (CODCr), it is biochemical oxygen demand (BOD) (BOD), total
Organic carbon (TOC), benzene homologues (BTX：Benzene,toluene,xylene), three nitrogen (NO3-N、NO2-N、NH4- N), total suspended matter (TSS),
± 10%) it is underground water water quality information in situ that, control active station 11 records the time point data automatically；Pumping discharges water to water quality and exists
Line dystopy monitoring subsystem, conventional parameter Water Test Kits 2 12,2 13 online dystopy of online spectral water quality monitor extraction water
Water quality, after water quality parameter stabilization after, and with online in-situ monitoring data without significant difference (with online in-situ monitoring water stabilization
Standard), depending on after drawing water water quality it is uninfluenced, then active station 11 is controlled to automatically turn on water sample collector 15 and collects water sample, before
Backwater is collected in backwater collector 14, prevents backwater pollution water sample collector 15 in well, influences water sample representativeness.
Claims (8)
1. a kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit, it is characterised in that including being set on ground
On control active station, representative water sample judge acquisition system and with active station is controlled to be connect with rope and with being placed in well
Online in-situ monitoring system under lower water water level, the control active station are communicated with online situ detection system；The representativeness
Water sample judges that acquisition system is connect by water pipe with the suction pump under water water level located underground；The representativeness water sample judges acquisition
System setting backwater collector, water sample collector, online spectral water quality monitor two, conventional parameter Water Test Kits two；It is described
Online in-situ monitoring system is included in line spectrum water quality monitor one, conventional parameter Water Test Kits one；It is described in line spectrum water
Matter monitor two, conventional parameter Water Test Kits two and control active station communication；The online spectral water quality monitor one, routine
Parameter Water Test Kits one is communicated by built-in wireless communication module and control active station；The water pump passes through water pipe and backwater
Collector, water sample collector connection, the online spectral water quality monitor two, conventional parameter Water Test Kits two for monitor,
Water in analysis backwater collector, water sample collector.
2. a kind of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit, special
Sign is that the suction pump, online spectral water quality monitor one, conventional parameter Water Test Kits one are integrated in permeable instrument container
Interior, the permeable instrument container is by rope suspensions under groundwater level in well.
3. a kind of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit, special
Sign is that the water pipe is equipped with flowmeter.
4. a kind of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit, special
Sign is that the control active station is equipped with the turntable for collecting water pipe, rope.
5. a kind of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit, special
Sign is that the conventional parameter Water Test Kits one, two can measure conventional water quality parameter and include water temperature, dissolved oxygen, conductivity, oxygen
Change reduction potential, pH, turbidity.
6. a kind of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit, special
Sign is that the online spectral water quality monitor one, two measures material parameters and includes measuring COD, total organic carbon, three
Nitrogen, total suspended matter.
7. a kind of underground water on-line monitoring according to claim 3, representative water sampling integration self-con-tained unit, special
Sign is that the flowmeter is communicated with control active station.
8. a kind of underground water on-line monitoring, representative water sampling one according to any one of claim 1-7 claims
The control method of body self-con-tained unit, which is characterized in that include the following steps：Active station is controlled to start suction pump, according to low discharge
Water sample regulation is acquired, water level is monitored with conventional parameter Water Test Kits one, and passes through data communication network and is transmitted to control operation
It stands, automatic control water level drawdown is no more than 0.1m, prevents hydraulic pressure rapid drawdown from escape volatile organic matter；Underground is monitored with flowmeter
Water flow, and pass through data communication network and be transmitted to control active station, automatic control flow avoid flowing greatly in 0.1-0.5L/min
Measure the disturbance drawn water to groundwater sample；It is online in situ with conventional parameter Water Test Kits one, online spectral water quality monitor one
Quality of groundwater in monitoring well, after water quality parameter stabilization, test frequency is primary for 5min, continuously changes three times no more than as follows
Range：pH：±0.1；Conductivity：± 3%；ORP：±10mV；DO, turbidity, COD, biochemical oxygen demand (BOD), total organic carbon,
Benzene homologues, three nitrogen, total suspended matter ± 10%, it is Groundwater in situ that control active station records the time point data automatically
Matter information；The water quality of conventional parameter Water Test Kits two, two online dystopy of online spectral water quality monitor monitoring extraction water, treats water
After matter parameter stability, and with online in-situ monitoring data without significant difference, depending on after drawing water water quality it is uninfluenced, then control operation
It stands and automatically turns on water sample collector collection water sample, backwater before is collected in backwater collector, prevents backwater contaminant water in well
Sample collector influences water sample representativeness.
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| CN108871873A (en) * | 2018-09-10 | 2018-11-23 | 中国环境科学研究院 | Refuse landfill underground water automatic sampling monitoring device |
| CN109444369A (en) * | 2018-12-20 | 2019-03-08 | 湖南新光智能科技有限公司 | A kind of sewer water quality detecting device |
| CN109827809A (en) * | 2019-01-24 | 2019-05-31 | 广西壮族自治区环境监测中心站 | A kind of dedicated well-flushing sampling pump of Novel underground monitoring water environment well |
| CN109874642A (en) * | 2019-03-12 | 2019-06-14 | 中国地质科学院水文地质环境地质研究所 | A kind of phreatic water extraction of azotate pollution and irrigate joint repair system |
| CN110390494A (en) * | 2019-08-13 | 2019-10-29 | 成都理工大学 | The source tracing method of " three nitrogen " in the household refuse landfill sites underground water of farming region |
| CN110501187A (en) * | 2019-08-27 | 2019-11-26 | 广州尚广环保科技有限公司 | Water sampling system |
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| CN114295701A (en) * | 2021-12-26 | 2022-04-08 | 生态环境部南京环境科学研究所 | Monitoring well for monitoring benzene series in underground water and arrangement method thereof |
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| CN115166183A (en) * | 2022-07-06 | 2022-10-11 | 重庆地质矿产研究院 | Intelligent integrated device and method for online monitoring, well washing and sampling of underground water pollution |
| CN116087439A (en) * | 2022-10-27 | 2023-05-09 | 山东冽泉环保工程咨询有限公司 | Non-aqueous phase liquid monitoring system |
| WO2024026961A1 (en) * | 2022-08-02 | 2024-02-08 | 中国地质调查局水文地质环境地质调查中心 | Portable intelligent low-disturbance sampling apparatus |
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