CN108196021B - 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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- CN108196021B CN108196021B CN201711408003.9A CN201711408003A CN108196021B CN 108196021 B CN108196021 B CN 108196021B CN 201711408003 A CN201711408003 A CN 201711408003A CN 108196021 B CN108196021 B CN 108196021B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 243
- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000005070 sampling Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000010354 integration Effects 0.000 title claims abstract description 15
- 238000003149 assay kit Methods 0.000 claims abstract description 33
- 230000003595 spectral effect Effects 0.000 claims abstract description 29
- 238000011065 in-situ storage Methods 0.000 claims abstract description 23
- 239000003673 groundwater Substances 0.000 claims abstract description 20
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 36
- 238000004891 communication Methods 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000001228 spectrum Methods 0.000 claims description 6
- 239000005416 organic matter Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 claims 1
- 239000013505 freshwater Substances 0.000 abstract description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000011010 flushing procedure Methods 0.000 description 6
- 230000033116 oxidation-reduction process Effects 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000002795 fluorescence method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003694 hair properties Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
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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—Biological oxygen demand [BOD] or chemical oxygen demand [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—Organic contamination in water
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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 online in-situ monitoring system that control active station, the representative water sample on ground judge acquisition system and connect and be 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, representative water sample judge acquisition system online spectral water quality monitor two and conventional parameter Water Test Kits two for monitoring, analyzing 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 sampling is stablized with multidimensional, multi-point water quality parameter and judges water sample representativeness.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 technique
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 acquires representative water sample, 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), total suspended matter (TSS) etc. characterize
A point parameter online is studied to realize already.In terms of water sampling, well-flushing is the key that guarantee 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 vulnerable to disturbance polluted underground water sample, (especially waves
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
It is usually no more than 0.1m, extraction water is measured with electrochemistry water quality monitor, (the general 5min test after conventional water quality parameter is stablized
Frequency continuously changes three times and is no more than following range: pH, and ± 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 placed 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, especially polluted underground water whether water sample is fresh, has with nonaqueous phase
For machine object, conventional water quality indicator stabilization does not necessarily mean that organic matter reaches stable, and especially 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
Capsule pumps subject to well-flushing sample devices, only tests water quality in water outlet, can not identify 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 to monitor for the fresh water sample in water-bearing layer, and water
It need to more be stablized before sample acquisition with multidimensional, multi-point water quality parameter and judge water sample representativeness.In-depth monitoring, sampling technique integration collection
At being to reduce the probabilistic key of acquisition of information in situ.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of underground water on-line monitorings, 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
Collecting system, and connect with control active station with rope and be placed in well the online in-situ monitoring system under groundwater level, institute
It states control active station and online situ detection system communicates；The representativeness water sample judges acquisition system by water pipe and is located at ground
The suction pump connection being lauched under water level；It is described representativeness water sample judge acquisition system be arranged 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
Compose water quality monitor two, conventional parameter Water Test Kits two is used to monitor, analyzes backwater collector, the water in water sample collector.
A further technical solution lies in the suction pumps, 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.
A further technical solution lies in the water pipe is equipped with flowmeter.
A further technical solution lies in the control active station is equipped with the turntable for collecting water pipe, rope.
A further technical solution lies in 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.
A further technical solution lies in 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.
A further technical solution lies in the flowmeter and control active station communications.
A further technical solution lies in a kind of underground water on-line monitorings, representative water sampling integration self-con-tained unit
Control method, which comprises the steps of: control active station start suction pump, according to low discharge acquisition water sample regulation,
Water level is monitored with conventional parameter Water Test Kits one, and control active station is transmitted to by data communication network, 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 with flowmeter, and is passed through
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, the online in-situ monitoring well of online spectral water quality monitor one
Water water quality, after water quality parameter is stablized, test frequency is that 5min is primary, and continuously variation is no more than following range: pH three times: ±
0.1；Conductivity: ± 3%；ORP: ± 10mV；DO, turbidity, COD, biochemical oxygen demand (BOD), total organic carbon, benzene homologues, three
Nitrogen, total suspended matter ± 10%, control active station automatically record the time point data as underground water water quality information in situ；Often
The water quality of parameter Water Test Kits two, the online dystopy of online spectral water quality monitor two monitoring extraction water is advised, it is steady to water quality parameter
After fixed, and with online in-situ monitoring data without significant difference, depending on after drawing water water quality it is uninfluenced, then control active station and open automatically
It opens water sample collector and collects water sample, backwater before is collected in backwater collector, backwater pollution water sample collector in well is prevented,
It is representative to influence water sample.
The beneficial effects of adopting the technical scheme are that it is considered herein that being water-bearing layer in order to ensure monitoring
Fresh water sample is stablized water sampling with multidimensional, multi-point water quality parameter and judges water sample representativeness.In-depth monitoring, sampling technique
It is integrated, it is uncertain to greatly reduce acquisition of information in situ.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is structural schematic diagram of the invention；
1, suction pump；2, water pipe；3, ground；4, flowmeter；5, conventional parameter Water Test Kits one；6, online spectral water quality
Monitor one；7, permeable instrument container；8, well；9, groundwater level；10, rope；11, active station is controlled；12, conventional parameter water quality
Analyzer two；13, online spectral water quality monitor two；14, backwater collector；15, water sample collector.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, 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 the specific embodiments disclosed below.
The invention discloses a kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit, feature exists
In including that control active station, representative water sample on the ground judge acquisition system, and connects with active station cable is controlled
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 that backwater collector, water sample is arranged in acquisition system
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 pass through built-in
Wireless communication module and 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, it includes that measurement chemistry needs that the online spectral water quality monitor one, two, which measures characteristic chemical composition parameter,
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, comprising: suction pump 1, suction pump 1 connects power supply, water receiving pipe 2, water pipe 2 at work
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 be arranged 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 pump of Solinst Integra；
Conventional parameter Water Test Kits one, two: IN-SITU Aqua TROLL 400 multiparameter water quality analyzer in the U.S. is 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 analyzer,
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.
The implementation steps of the invention is as follows: control active station 11 starts 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 control active station 11, automatic control water level are transmitted to by data communication network
Drawdown is no more than 0.1m, prevents hydraulic pressure rapid drawdown from escape VOCs volatile organic matter；The rate of discharge of groundwater is monitored with flowmeter 4, and
It is transmitted to control active station 11 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, after water quality parameter is stablized (5min test frequency, continuously variation is no more than following range three times:
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%), control active station 11 automatically records the time point data as underground water water quality information in situ；Pumping discharges water to water quality and exists
Line dystopy monitoring subsystem, conventional parameter Water Test Kits 2 12, the online dystopy of online spectral water quality monitor 2 13 extract water out
Water quality, after water quality parameter stablize 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 control active station 11 automatically turn on water sample collector 15 collect water sample, before
Backwater is collected in backwater collector 14, prevents backwater pollution water sample collector 15 in well, influences water sample representativeness.
Claims (5)
1. the control method of a kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit, which is characterized in that institute
Stating device includes that control active station, the representative water sample on ground judge acquisition system, and restrict with control active station
Rope connects and is placed in well the online in-situ monitoring system under groundwater level, the control active station and online in situ detection system
System communication；The representativeness water sample judges that acquisition system is connect by water pipe with the suction pump under water water level located underground；It is described
Representative water sample judges that backwater collector, water sample collector, online spectral water quality monitor two, conventional parameter is arranged in acquisition system
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 and control active station communication；It is described in line spectrum
Water quality monitor one, conventional parameter Water Test Kits one pass through built-in wireless communication module and control active station communication；It is described
Water pump is connect by water pipe with backwater collector, water sample collector, the online spectral water quality monitor two, conventional parameter water quality
Analyzer two is used to monitor, analyzes backwater collector, the water in water sample collector；
It includes water temperature, dissolved oxygen, conductivity, oxidation that the conventional parameter Water Test Kits one, two, which can measure conventional water quality parameter,
Reduction potential, pH, turbidity；
The online spectral water quality monitor one, two measure material parameters include measurement COD, total organic carbon, three nitrogen,
Total suspended matter；
The control method includes the following steps: to control active station starting suction pump, according to low discharge acquisition water sample regulation, with routine
Parameter Water Test Kits one monitors water level, and is transmitted to control active station, automatic control water level drawdown by data communication network
No more than 0.1m, prevent hydraulic pressure rapid drawdown from escape volatile organic matter；The rate of discharge of groundwater is monitored with flowmeter, and logical by data
It interrogates network transmission and avoids big flow from drawing water to groundwater sample in 0.1-0.5L/min to active station, automatic control flow is controlled
Disturbance；With quality of groundwater in conventional parameter Water Test Kits one, the online in-situ monitoring well of online spectral water quality monitor one,
After water quality parameter is stablized, test frequency is that 5min is primary, continuously changes three times and is no more than following range: pH: ± 0.1；Conductance
Rate: ± 3%；ORP: ± 10mV；DO, turbidity, COD, biochemical oxygen demand (BOD), total organic carbon, benzene homologues, three nitrogen, total suspension
Object ± 10%, control active station automatically record the time point data as underground water water quality information in situ；Conventional parameter water
The water quality of matter analyzer two, the online dystopy of online spectral water quality monitor two monitoring extraction water, after water quality parameter is stablized, and with
For online in-situ monitoring data without significant difference, view water quality after drawing water is uninfluenced, then controls active station and automatically turn on water sample receipts
Storage collects water sample, and backwater before is collected in backwater collector, prevents backwater pollution water sample collector in well, influence water sample
It is representative.
2. the controlling party of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit
Method, which is characterized in that 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.
3. the controlling party of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit
Method, which is characterized in that the water pipe is equipped with flowmeter.
4. the controlling party of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit
Method, which is characterized in that the control active station is equipped with the turntable for collecting water pipe, rope.
5. the controlling party of underground water on-line monitoring according to claim 1, representative water sampling integration self-con-tained unit
Method, which is characterized in that the flowmeter and control active station communication.
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| CN201711408003.9A CN108196021B (en) | 2017-12-22 | 2017-12-22 | A kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its control method |
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| CN110687057A (en) * | 2018-07-04 | 2020-01-14 | 中国科学院深圳先进技术研究院 | Water in-situ detection device |
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