CN103149335B - Aquatic volatile organic contaminant sample pretreatment (VOC) system - Google Patents
Aquatic volatile organic contaminant sample pretreatment (VOC) system Download PDFInfo
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- CN103149335B CN103149335B CN201310027825.8A CN201310027825A CN103149335B CN 103149335 B CN103149335 B CN 103149335B CN 201310027825 A CN201310027825 A CN 201310027825A CN 103149335 B CN103149335 B CN 103149335B
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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 23
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 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
- 238000001514 detection method Methods 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
- 238000000034 method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006378 damage Effects 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
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect 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
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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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, particularly relates to volatile organic contaminant sample pre-treatments system in a kind of water.
Background technology
The material that the enterprises such as volatile organic contaminant (VOC) is oil, chemical industry, pharmacy, printing, building materials, spraying often use and discharge.Special it is emphasized that many VOC have inflammable and explosive characteristic, if relevant enterprise exists safety management hidden danger at the storage of these materials, production and transit link, very easily lead to great environmental contamination accident.In recent years China's great environmental contamination accident (especially poisonous organic pollution accident) takes place frequently, and often has the character of burst, high concentration, condition of water quality complexity.
Current VOC supervisory system in actual water body runs, the problems such as the extreme condition of water quality caused due to natural conditions or contamination accident can cause monitoring analysis equipment failure, serviceable life shortens.Water sample acquisition device ubiquity microbial growth phenomenon in Long-Time Service process of VOC supervisory system, has influence on the patency of sampling current and quantitative accuracy.Meanwhile, lack the backup of off-line analysis sample, increase the self-protection functions such as clear water back flush frequency.In order to prevent this kind of problem, research and development are needed to have instrument self-protection, coordinated signals and the VOC sample pre-treatments system of the functions such as warning that exceed standard.
For the typical pollutant in all previous great water pollution event, select the on-line monitoring equipment meeting monitor control index, integrated on-line monitoring, water sample pretreatment technology, coordinated signals technology, build volatile organic contaminant sample pre-treatments system in water, ensure 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 volatile organic contaminant sample pre-treatments system in a kind of water, when VOC Monitor Equipment is in operational process, when under water quality generation extreme condition (index exceeding standard such as water temperature, pH value, dissolved oxygen DO, conductivity, turbidity) and VOC concentration over-standard condition, and during Sudden Environmental Pollution Accident, preprocessing system and quantitative sampling device block; This preprocessing system can ensure the stable operation of supervisory system, protects instrument in time and accomplishes that sample is retained off-line analysis and increases the service life.
For this reason, the invention discloses volatile organic contaminant sample pre-treatments system in a kind of water, comprising: water sample acquisition device, it is connected with water source, for intermittently gathering water sample from water source; Water quality conventional parameter detecting device/PID sensor, they are connected with described water sample acquisition device, are respectively used to the concentration measuring 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, for filtering water sample acquisition device, back flush, prevents growing of microorganism; Quantitative sampling device, it filters with described water sample/back purge system is connected, for by through filtering, quantitative being injected in VOC supervisory system of water sample of back flush pre-treatment carry out quantitative and qualitative analysis detection; Overproof water quality storage sample device, it is connected with described water sample acquisition device, under water quality extreme condition, preserves water sample, 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; for realize water quality parameter exceed standard after controller block water sample enter VOC supervisory system; and for retaining water sample, the frequency increasing clear water back flush water sample acquisition device can be controlled simultaneously, increase the self-protection of instrument.
This system can be protected instrument and equipment in use to run into 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: exceed standard alarm module, it is connected with described water quality conventional parameter detecting device/PID sensor, for according to the index alarm threshold value set in described water quality conventional parameter detecting device/PID sensor, report to the police in time after concentration over-standard, and cut off water sample and enter 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 for exceeding standard, warning message passes to VOC supervisory system.
Preferably; in described water, volatile organic contaminant sample pre-treatments system also can comprise: coordinated signals module; it is arranged on supervisory system; during for overproof water quality; block water sample and enter VOC supervisory system; control the frequency increasing clear water back flush water sample acquisition device simultaneously, increase the self-protection of instrument.
Preferably, in described water in volatile organic contaminant sample pre-treatments system, described water source comprises fixing water source, flowing water source, 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 wireless signal transfer device.
Preferably, in described water in volatile organic contaminant sample pre-treatments system, described controller is computer for controlling.
Accompanying drawing explanation
Fig. 1 shows the process flow diagram of volatile organic contaminant sample pre-treatments system in water.
Embodiment
The present invention is described in further detail below, can implement according to this with reference to instructions word to make those skilled in the art.
The invention provides volatile organic contaminant sample pre-treatments system in a kind of water, comprising: water sample acquisition device, it is connected with water source, for intermittently gathering water sample from 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 and water sample surrounding air that described water sample acquisition device gathers; Water sample filtration/back purge system, it is connected with described water sample acquisition device, for filtering water sample acquisition device, back flush, prevents cooperating microorganisms; Quantitative sampling device, it filters with described water sample/back purge system is connected, for by through filtering, quantitative being injected in the supervisory system of VOC of water sample of back flush pre-treatment carry out quantitative and qualitative analysis detection.
Foregoing be the water quality of water sample under normal circumstances, the collection of water sample and the detection to volatile organic contaminant in water sample.The collection of water sample and water quality conventional parameter detecting device/PID sensor are combined; be conducive to the variation of water detecting detected water sample; under being convenient to grasp water quality extreme condition (extremely acid, pole alkali etc.); enter quantitative sampling device after timely cut-out water sampling and enter VOC supervisory system and analyze, protection monitoring instrument equipment.And can 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, such as, when water quality conventional parameter detecting device detects that in water sample, condition of water quality is in normal range, when not occurring abnormal, the water sample of water sample acquisition device collection can enter into quantitative sampling device and VOC supervisory system is analyzed; Again in such as PID Sensor monitoring to water sample acquisition device ambient air VOC concentration in normal range, illustrate that the water sample gathered can enter VOC monitoring analysis, if and VOC concentration over-standard in PID Sensor monitoring to water sample acquisition device ambient air, illustrate that the VOC concentration in relevant water body is higher, cut off water sample in time by coordinated signals and enter VOC supervisory system.According to the threshold range of the different monitoring parameter of setting, determine whether the water sample of collection to enter down quantitative injection device and VOC supervisory system is analyzed.
In described water in volatile organic contaminant sample pre-treatments system, also comprise: overproof water quality storage sample device, it is connected with described water sample acquisition device, under water quality extreme condition, preserves water sample, 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, enters sampling device, VOC supervisory system for realizing blocking water sample after water quality parameter exceeds standard, and for retaining water sample, for off-line analysis, the frequency increasing clear water back flush water sample acquisition device can be controlled simultaneously, increase the self-protection of instrument; Exceed standard alarm module, it is connected with described water quality conventional parameter detecting device/PID sensor, for the alarm threshold value according to indexs such as the VOC concentration set in the water temperature, pH value, dissolved oxygen DO, conductivity, turbidity and the PID sensor that set in described water quality conventional parameter detecting device, concentration over-standard is carried out and alarm, and cuts off water sample and enter VOC supervisory system.
Foregoing is exceed standard warning and the explanation carried out of storage sample off-line analysis process to volatile organic contaminant.Whether controller blocks water sample according to water quality conventional parameter detecting device and PID sensor to the adjustment of the Monitoring Data of VOC concentration in the water quality parameter of water sample and water sample surrounding air and enters into VOC supervisory system, high-risk-value is closed on 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, the water quality parameter of the filtration of water sample acquisition device and back flush frequency and monitoring and pollutant levels are directly proportional, are directly proportional to the extent of injury of monitoring pollution thing.After water sample retention device mainly refers to that water quality parameter or PID Sensor monitoring pollutant levels exceed standard, system blocking water sample enters sampling device, starts water sample simultaneously and retains device, preserves water sample for off-line analysis.Exceed standard and report to the police mainly according to the alarm threshold value of the indexs such as the VOC concentration set in the water temperature, pH value, dissolved oxygen DO, conductivity, turbidity and the PID sensor that set in described water quality conventional parameter detecting device, carry out and alarm when concentration over-standard.
In described water in volatile organic contaminant sample pre-treatments system, also comprise: transmit module, it is connected with the described alarm module that exceeds standard, and for exceeding standard, warning message passes to supervisory system; Coordinated signals module, it is arranged on supervisory system, during for overproof water quality, blocks water sample and enters supervisory system, control the frequency increasing clear water back flush water sample acquisition device simultaneously, increase the self-protection of instrument.
Described water source comprises fixing water source, flowing water source, responsive water source, place and/or water source, common place.Flow-type water source, such as river; Fixed water source, such as pond, flow reservoir slowly; Again such as, responsive water source, as drinking water source, underground water source; Common water source, such as common river.Dissimilar according to water source kind, has different water quality conventional index critical field etc.
Described transmission module is 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 in instructions and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, 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 described.
Claims (6)
1. a volatile organic contaminant sample pre-treatments system in water, is characterized in that, comprising:
Water sample acquisition device, it is connected with water source, for intermittently gathering water sample from water source;
Water quality conventional parameter detecting device/PID sensor, they are connected with described water sample acquisition device, are respectively used to the concentration measuring 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, for filtering the water sample collected, back flush, prevents growing of microorganism;
Quantitative sampling device, it filters with described water sample/and back purge system is connected, and carries out quantitative and qualitative analysis detection for being injected into VOC supervisory system quantitatively to the water sample through pre-treatment;
Overproof water quality storage sample device, it is connected with described water sample acquisition device, under water quality extreme condition, preserves water sample, 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, for realize water quality parameter exceed standard after controller block water sample enter sampling device, VOC supervisory system, and control retain water sample, for off-line analysis, control the frequency increasing clear water back flush water sample acquisition device simultaneously.
2. volatile organic contaminant sample pre-treatments system in water as claimed in claim 1, is characterized in that, also comprise:
Exceed standard alarm module, it is connected with described water quality conventional parameter detecting device/PID sensor, for according to the index alarm threshold value set in described water quality conventional parameter detecting device/PID sensor, report to the police in time after concentration over-standard, and cut off water sample and enter quantitative sampling 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 comprise:
Transmit module, it is connected with the described alarm module that exceeds standard, and for exceeding standard, warning message passes to VOC supervisory system.
4. volatile organic contaminant sample pre-treatments system in water as claimed in claim 3, is characterized in that, also comprise:
Coordinated signals module, it is arranged on VOC supervisory system, for when overproof water quality, blocks water sample and enters VOC supervisory system, control the frequency increasing clear water back flush water sample acquisition device simultaneously, increase the self-protection of instrument.
5. volatile organic contaminant sample pre-treatments system in water as claimed in claim 3, it is characterized in that, described transmission module is wireless signal transfer device.
6. volatile organic contaminant sample pre-treatments system in water as claimed in claim 1, is characterized in that, described water source comprises fixing water source, flowing water source, 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 true CN103149335B (en) | 2015-07-08 |
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Families Citing this family (6)
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| CN103364248B (en) * | 2013-07-30 | 2016-01-20 | 北京市农林科学院 | Water body nitrate nitrogen isotope test pretreating device |
| CN104458341B (en) * | 2014-12-03 | 2018-08-10 | 中国环境科学研究院 | A kind of portable case type solid-phase extraction device and method can be used for natural water sampling |
| 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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