CN103149335A - Aquatic volatile organic contaminant sample pretreatment (VOC) system - Google Patents
Aquatic volatile organic contaminant sample pretreatment (VOC) system Download PDFInfo
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- CN103149335A CN103149335A CN2013100278258A CN201310027825A CN103149335A CN 103149335 A CN103149335 A CN 103149335A CN 2013100278258 A CN2013100278258 A CN 2013100278258A CN 201310027825 A CN201310027825 A CN 201310027825A CN 103149335 A CN103149335 A CN 103149335A
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- 239000000356 contaminant Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 214
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 10
- 244000005700 microbiome Species 0.000 claims abstract description 4
- 238000002203 pretreatment Methods 0.000 claims description 24
- 238000010926 purge Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004451 qualitative analysis Methods 0.000 claims description 3
- 238000004445 quantitative analysis Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 238000011001 backwashing Methods 0.000 abstract 5
- 238000009395 breeding Methods 0.000 abstract 1
- 230000001488 breeding effect Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an aquatic volatile organic contaminant (VOC) sample pretreatment system which comprises a water sampling device, a water quality general parameter detector/a proportional integral differential (PID) sensor, a water sampling filter/backwashing device and a quantitative sampling device. The water quality general parameter detector/the proportional integral differential (PID) sensor is connected with the water sampling device and respectively used for measuring water quality conditions of water samples and VOC concentration in surrounding air of the water samples. The water sampling filter/backwashing device is connected with the water sampling device and used for carrying out filtering and backwashing on the water sampling device, and avoiding microorganism breeding. The quantitative sampling device is connected with the water sampling filter/backwashing device and used for quantificationally injecting the water samples a VOC monitoring system to analyze and detect. The aquatic VOC sample pretreatment system further comprises a water quality standard-exceeding sample storage device and a controller. The water quality standard-exceeding sample storage device is connected with the water sampling device and used for storing the water samples under a water quality extreme condition for offline analysis. The controller is used for preventing the water samples from entering the monitoring system after the water quality exceeds the standard, controlling and increasing the frequencies of backwashing the water sampling device through clear water, and enhancing self-protection of instruments.
Description
Technical field
The technology of the present invention belongs to field of environment protection, relates to a kind of instrument preprocessing system, relates in particular in a kind of water volatile organic contaminant sample pre-treatments system.
Background technology
Volatile organic contaminant (VOC) is the material that the enterprises such as oil, chemical industry, pharmacy, printing, building materials, spraying often use and discharge.Be stressed that especially, many VOC have inflammable and explosive characteristic, if there is safety management hidden danger in relevant enterprise at storage, production and the transit link of these materials, very easily lead to great environmental pollution accident.In recent years the great environmental pollution accident of China (especially poisonous organic pollution accident) takes place frequently, and often have burst, the character of high concentration, condition of water quality complexity.
At present the VOC supervisory system is in service at actual water body, and the extreme condition of water quality that causes due to natural conditions or contamination accident can cause the problems such as monitoring analysis equipment failure, serviceable life shorten.The water sample acquisition device of VOC supervisory system is ubiquity microbial growth phenomenon in long-term use procedure, has influence on the patency of sampling current and quantitative accuracy.Simultaneously, lack the self-protection functions such as the backup of off-line analysis sample, increase clear water back flush frequency.In order to prevent this class problem, need research and development to have the VOC sample pre-treatments system of instrument self-protection, interlock control and the functions such as warning that exceed standard.
For the typical pollutant in all previous great water pollution event, the on-line monitoring equipment of monitor control index is satisfied in selection, integrated on-line monitoring, water sample pretreatment technology, interlock control technology, build in water volatile organic contaminant sample pre-treatments system, guarantee the normal operation of VOC supervisory system instrument and equipment.
Summary of the invention
For above-mentioned situation, the present invention has designed and developed in a kind of water volatile organic contaminant sample pre-treatments system, with Monitor Equipment in operational process, under water quality generation extreme condition (index exceeding standards such as water temperature, pH value, dissolved oxygen DO, conductivity, turbidity) and VOCs concentration over-standard condition, and during Sudden Environmental Pollution Accident, preprocessing system and quantitative sampling device blocking-up; This preprocessing system can guarantee the stable operation of supervisory system, in time protects instrument and accomplishes sample retention off-line analysis and increase the service life.
For this reason, the invention discloses in a kind of water volatile organic contaminant sample pre-treatments system, comprising: water sample acquisition device, it is connected with the water source, is used for intermittently gathering water sample from the water source; Water quality conventional parameter detecting device/PID sensor, they are connected with described water sample acquisition device, are respectively used to measure the concentration of VOC in the water sample water quality situation that gathers and water sample surrounding air; Water sample filtration/back purge system, it is connected with described water sample acquisition device, be used for to water sample acquisition device filter, back flush, prevent growing of microorganism; Quantitative sampling device, it filters with described water sample/back purge system is connected, be used for will through filtration, the water sample of back flush pre-treatment is quantitative is injected into the VOC supervisory system and will carry out the quantitative and qualitative analysis detection; Overproof water quality storage sample device, it is connected with described water sample acquisition device, is used under the water quality extreme condition, water sample being preserved, for off-line analysis; Controller; itself and described water sample acquisition device; water quality conventional parameter detecting device/PID sensor; filtration/back purge system is connected with overproof water quality storage sample device; be used for realizing that the water quality parameter rear controller blocking-up water sample that exceeds standard enters the VOC supervisory system; and be used for retaining water sample, and can control the frequency that increases clear water back flush water sample harvester simultaneously, increase the self-protection of instrument.
This system can protect instrument and equipment in use to run into the water quality extreme condition and cut off sample introduction, retains water sample for off-line analysis, increases the service life.
Described system also can comprise: alarm module exceeds standard, it is connected with described water quality conventional parameter detecting device/PID sensor, be used for the index alarm threshold value according to described water quality conventional parameter detecting device/the PID sensor is set, in time report to the police after concentration over-standard, and the cut-out water sample enters the VOC supervisory system.Described index can be water temperature, pH value, dissolved oxygen DO, conductivity, turbidity, VOC concentration etc.
Preferably, in described water, volatile organic contaminant sample pre-treatments system also can comprise: transmit module, it is connected with the described alarm module that exceeds standard, and warning message passes to supervisory system for exceeding standard.
Preferably; in described water, volatile organic contaminant sample pre-treatments system also can comprise: the interlock control module; it is arranged on supervisory system; when being used for overproof water quality; the blocking-up water sample enters the VOC supervisory system; control simultaneously the frequency that increases clear water back flush water sample harvester, increase the self-protection of instrument.
Preferably, in described water, in volatile organic contaminant sample pre-treatments system, the water source of described different conditions comprises fixedly water source, the water source that flows, responsive water source, place and/or water source, common place.
Preferably, in described water, in volatile organic contaminant sample pre-treatments system, described transmission module is the wireless signal transfer device.
Preferably, in described water, in volatile organic contaminant sample pre-treatments system, described controller is for controlling computing machine.
Description of drawings
Fig. 1 shows the process flow diagram of the system of volatile organic contaminant sample pre-treatments in water.
Embodiment
Below the present invention is described in further detail, can implement according to this with reference to the instructions word to make those skilled in the art.
The invention provides in a kind of water volatile organic contaminant sample pre-treatments system, comprising: water sample acquisition device, it is connected with the water source, is used for intermittently gathering water sample from the water source; Water quality conventional parameter detecting device/PID sensor, they are connected with described water sample acquisition device, are respectively used to measure the concentration of VOC in water sample condition of water quality that described water sample acquisition device gathers and water sample surrounding air; Water sample filtration/back purge system, it is connected with described water sample acquisition device, be used for to water sample acquisition device filter, back flush, prevent from growing microorganism; Quantitative sampling device, it filters with described water sample/back purge system is connected, be used for will through filtration, the quantitative supervisory system that is injected into VOC of water sample of back flush pre-treatment carry out the quantitative and qualitative analysis detection.
Foregoing be water sample water quality under normal circumstances, the collection of water sample and to the detection of volatile organic contaminant in water sample.Collection and the water quality conventional parameter detecting device/PID sensor of water sample are combined; be conducive to detect the variation of water of detected water sample; be convenient to grasp under water quality extreme condition (extremely acid, utmost point alkali etc.); enter quantitative sampling device and enter the VOC supervisory system after in time cut-out water sampling and analyze, protection monitoring instrument equipment.And can be by setting the threshold value of water quality conventional parameter and VOC concentration, determine that water sample normally enters the situation of quantitative injection device and VOC supervisory system, for example, when water quality conventional parameter detecting device detects in water sample condition of water quality in normal range, do not occur when abnormal, the water sample of water sample acquisition device collection can enter into quantitative injection device and the VOC supervisory system is analyzed; Again for example the PID Sensor monitoring in the water sample acquisition device ambient air VOC concentration in normal range, illustrate that the water sample that gathers can enter the VOC monitoring analysis, if and PID Sensor monitoring VOC concentration over-standard in the water sample acquisition device ambient air, illustrate that the VOC concentration in relevant water body is higher, controlling in time by interlock, the cut-out water sample enters the VOC supervisory system.According to the threshold range of setting different monitoring parameters, determine whether that the water sample that will gather enters down quantitative injection device and the VOC supervisory system is analyzed.
In volatile organic contaminant sample pre-treatments system, also comprise in described water: overproof water quality storage sample device, it is connected with described water sample acquisition device, is used under the water quality extreme condition, water sample being preserved, for off-line analysis; Controller, itself and described water sample acquisition device, water quality conventional parameter detecting device/PID sensor, water sample filtration/back purge system is connected with overproof water quality storage sample device, be used for realizing that the water quality parameter rear blocking-up water sample that exceeds standard enters the sample introduction supervisory system, and be used for retaining water sample, for off-line analysis, can control simultaneously the frequency that increases clear water back flush water sample harvester, increase the self-protection of instrument; Alarm module exceeds standard, it is connected with described water quality conventional parameter detecting device/PID sensor, the alarm threshold value of the indexs such as VOC concentration of setting in water temperature, pH value, dissolved oxygen DO, conductivity, turbidity and the PID sensor that is used for setting according to described water quality conventional parameter detecting device, concentration over-standard is carried out and alarm, and the cut-out water sample enters supervisory system.
Foregoing is the explanation to exceeding standard of volatile organic contaminant reported to the police and storage sample off-line analysis process is carried out.Whether controller is blocked water sample according to water quality conventional parameter detecting device and PID sensor to the Monitoring Data adjustment of VOC concentration in the water quality parameter of water sample and water sample surrounding air and is entered into the VOC supervisory system, close on high-risk-value for Monitoring Data, improve the frequency of filtration, back flush, for Monitoring Data away from high-risk-value, reduce the frequency of filtration, back flush, that is to say, filtration and back flush frequency to water sample acquisition device are directly proportional to water quality parameter and the pollutant levels of monitoring, are directly proportional to monitoring hazards of pollutants degree.After water sample retention device referred to that mainly water quality parameter or PID Sensor monitoring pollutant levels exceed standard, the system blocking water sample entered sampling device, started simultaneously water sample and retained device, preserved water sample for off-line analysis.The warning that exceeds standard is mainly according to the alarm threshold value of the indexs such as VOC concentration of setting in water temperature, pH value, dissolved oxygen DO, conductivity, turbidity and the PID sensor set in described water quality conventional parameter detecting device, carries out and alarm when concentration over-standard.
In volatile organic contaminant sample pre-treatments system, also comprise in described water: transmit module, it is connected with the described alarm module that exceeds standard, and warning message passes to supervisory system for exceeding standard; The interlock control module, it is arranged on supervisory system, and when being used for overproof water quality, the blocking-up water sample enters supervisory system, controls simultaneously the frequency that increases clear water back flush water sample harvester, increases the self-protection of instrument.
The water source of described different conditions comprises fixedly water source, the water source that flows, responsive water source, place and/or water source, common place.Flow-type water source, for example river; Fixed water source, for example pond, mobile reservoir slowly; Again for example, responsive water source is as drinking water source, underground water source; Common water source, for example common river.Dissimilar according to the water source kind has different water quality conventional index critical field etc.
Described transmission module is the wireless signal transfer device, and described controller is computing machine.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in instructions and embodiment, it can be applied to various suitable the field of the invention fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.
Claims (6)
1. volatile organic contaminant sample pre-treatments system in a water, is characterized in that, comprising:
Water sample acquisition device, it is connected with the water source, is used for intermittently gathering water sample from the water source;
Water quality conventional parameter detecting device/PID sensor, they are connected with described water sample acquisition device, are respectively used to measure the concentration of VOC in the water sample condition of water quality that gathers and water sample surrounding air;
Water sample filtration/back purge system, it is connected with described water sample acquisition device, be used for to the water sample that collects filter, back flush, prevent growing of microorganism;
Quantitative sampling device, it filters with described water sample/back purge system is connected, and is used for carrying out quantitative and qualitative analysis and detect through the quantitative VOC supervisory system that is injected into of the water sample of pre-treatment;
Overproof water quality storage sample device, it is connected with described water sample acquisition device, is used under the water quality extreme condition, water sample being preserved, for off-line analysis;
Controller, itself and described water sample acquisition device, water quality conventional parameter detecting device/PID sensor, filtration/back purge system is connected with overproof water quality storage sample device, be used for realizing that the water quality parameter rear controller blocking-up water sample that exceeds standard enters sampling device, the VOC supervisory system, and control and retain water sample, for off-line analysis, control simultaneously the frequency that increases clear water back flush water sample harvester.
2. volatile organic contaminant sample pre-treatments system in water as claimed in claim 1, is characterized in that, also comprises:
Alarm module exceeds standard, it is connected with described water quality conventional parameter detecting device/PID sensor, be used for the index alarm threshold value according to described water quality conventional parameter detecting device/the PID sensor is set, in time report to the police after concentration over-standard, and the cut-out water sample enters quantitative injection device and VOC supervisory system.
3. volatile organic contaminant sample pre-treatments system in water as claimed in claim 2, is characterized in that, also comprises:
Transmit module, it is connected with the described alarm module that exceeds standard, and the warning message that is used for exceeding standard passes to supervisory system.
4. volatile organic contaminant sample pre-treatments system in water as claimed in claim 3, is characterized in that, also comprises:
The interlock control module, it is arranged on supervisory system, is used for when overproof water quality, and the blocking-up water sample enters the VOC supervisory system, controls simultaneously the frequency that increases clear water back flush water sample harvester, increases the self-protection of instrument.
5. volatile organic contaminant sample pre-treatments system in water as claimed in claim 3, is characterized in that, described transmission module is the wireless signal transfer device.
6. volatile organic contaminant sample pre-treatments system in water as claimed in claim 1, is characterized in that, the water source of described different conditions comprises fixedly water source, the water source that flows, responsive water source, place and/or water source, common place.
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| CN201310027825.8A CN103149335B (en) | 2013-01-25 | 2013-01-25 | Aquatic volatile organic contaminant sample pretreatment (VOC) system |
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| CN201310027825.8A CN103149335B (en) | 2013-01-25 | 2013-01-25 | Aquatic volatile organic contaminant sample pretreatment (VOC) system |
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| CN103149335B CN103149335B (en) | 2015-07-08 |
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Cited By (7)
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| CN103364248A (en) * | 2013-07-30 | 2013-10-23 | 北京市农林科学院 | Pre-treatment apparatus for test of nitrate nitrogen isotope in water body |
| CN104458341A (en) * | 2014-12-03 | 2015-03-25 | 中国环境科学研究院 | Portable box-type solid-phase extraction device for sampling natural water and natural water sampling method of portable box-type solid-phase extraction device |
| CN108828178A (en) * | 2018-08-06 | 2018-11-16 | 中国环境科学研究院 | A kind of water quality inspection device |
| CN109357912A (en) * | 2018-09-03 | 2019-02-19 | 浙江杭海环保科技有限公司 | A kind of petrochemical industry pollution flux highly effective gathering device |
| CN111189931A (en) * | 2018-11-15 | 2020-05-22 | 中国环境科学研究院 | Monitoring system for smelling volatile organic sulfide in water |
| CN114088505A (en) * | 2021-11-18 | 2022-02-25 | 光大水务科技发展（南京）有限公司 | Pretreatment device system of water treatment water quality detection instrument and working method thereof |
| CN108828178B (en) * | 2018-08-06 | 2024-05-31 | 中国环境科学研究院 | Water quality inspection equipment |
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| CN103364248A (en) * | 2013-07-30 | 2013-10-23 | 北京市农林科学院 | Pre-treatment apparatus for test of nitrate nitrogen isotope in water body |
| CN103364248B (en) * | 2013-07-30 | 2016-01-20 | 北京市农林科学院 | Water body nitrate nitrogen isotope test pretreating device |
| CN104458341A (en) * | 2014-12-03 | 2015-03-25 | 中国环境科学研究院 | Portable box-type solid-phase extraction device for sampling natural water and natural water sampling method of portable box-type solid-phase extraction device |
| CN108828178A (en) * | 2018-08-06 | 2018-11-16 | 中国环境科学研究院 | A kind of water quality inspection device |
| CN108828178B (en) * | 2018-08-06 | 2024-05-31 | 中国环境科学研究院 | Water quality inspection equipment |
| CN109357912A (en) * | 2018-09-03 | 2019-02-19 | 浙江杭海环保科技有限公司 | A kind of petrochemical industry pollution flux highly effective gathering device |
| CN111189931A (en) * | 2018-11-15 | 2020-05-22 | 中国环境科学研究院 | Monitoring system for smelling volatile organic sulfide in water |
| CN114088505A (en) * | 2021-11-18 | 2022-02-25 | 光大水务科技发展（南京）有限公司 | Pretreatment device system of water treatment water quality detection instrument and working method thereof |
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