CN108871873A - Refuse landfill underground water automatic sampling monitoring device - Google Patents
Refuse landfill underground water automatic sampling monitoring device Download PDFInfo
- Publication number
- CN108871873A CN108871873A CN201811051087.XA CN201811051087A CN108871873A CN 108871873 A CN108871873 A CN 108871873A CN 201811051087 A CN201811051087 A CN 201811051087A CN 108871873 A CN108871873 A CN 108871873A
- Authority
- CN
- China
- Prior art keywords
- sampling
- refuse landfill
- groundwater
- monitoring device
- underground water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of refuse landfill underground water automatic sampling monitoring device, including：Water-level gauge and groundwater sampling pipe, are placed in the underwater of monitoring well；Water-level gauge is connected to multi-parameter on-line computing model by transmission line biography；Groundwater sampling pipe is separately connected online monitoring pool, sampling bottle and well-flushing water collecting pit by groundwater sampling pump；The length of groundwater sampling pipe passes through scalable winch control；Working power provides for solar panel and battery or generator；The operation of each section is controlled by control transmitting device；Control transmitting device is connect by Ethernet with remote terminal, and the signal of remote terminal transmitting is received.The functions such as refuse landfill groundwater monitoring well automation well-flushing, automated hierarchical sampling may be implemented in the present invention, and the indexs such as groundwater level, conductivity, temperature, pH can be monitored on-line, to reflect the underground water pollution situation of different depth, objective reference frame is provided for refuse landfill groundwater monitoring early warning.
Description
Technical field
The present invention relates to the samplings of refuse landfill groundwater monitoring well, Ground water Quality Survey technology, more specifically relate to
And a kind of refuse landfill underground water automatic sampling monitoring device.
Background technique
With the raising of scientific and technological progress and industrialization degree, urbanization process is getting faster, and the yield of rubbish sharply increases
Height, the environmental problem that refuse landfill generates increasingly are taken seriously.Rubbish passes through the fermentation of certain time after buried, then
In addition rainwash permeates to form landfill leachate.Landfill leachate usually contain BOD, COD of high concentration, TOC, TSS,
TDS, persistent organic pollutants, ammonium salt, sulfide, humus etc., these pollutants once can be discharged into environment especially native
Earth and underground water can cause greatly environmental risk.And different refuse landfill landfill leachate components have differences, component
Difference to may cause the characteristics such as the density of percolate, hydrophily different, it is therefore desirable to the underground water of different depth is monitored, with true
Real reflection pollution condition.
Common groundwater sampling technology does not often account for layer distributed problem of the pollutant in underground water, therefore leads
It causes in many cases to the true pollution situation error in judgement of refuse landfill underground water.Refuse landfill groundwater monitoring is usual
By being realized by regularly sampling analysis, not only needs to expend biggish human and material resources, the real-time of the monitoring of pollution is also obtained
Less than guarantee.
Summary of the invention
The purpose of the invention is to provide a kind of refuse landfill underground water automatic sampling monitoring devices, to realize rubbish
Automatic well-flushing, the stratified sampling of landfill yard to analyze the pollution of different depth in underground water well, and realize underground water conductance
Rate, temperature, pH, water level on-line monitoring, accurate, reflection underground water pollution situation in real time supervises for refuse landfill underground water
It controls early warning and objective reference frame is provided.
To achieve the above object, refuse landfill underground water automatic sampling monitoring device provided by the invention, including：
Water-level gauge and groundwater sampling pipe, are placed in the underwater of monitoring well；
Water-level gauge is connected to multi-parameter on-line computing model by transmission line biography；
Groundwater sampling pipe is separately connected online monitoring pool, sampling bottle and well-flushing water collecting pit by groundwater sampling pump；
The length of sampling pipe passes through scalable winch control；
The power supply of refuse landfill underground water automatic sampling monitoring device is solar panel and battery or generator
It provides；
The operation of each section is controlled by control transmitting device in refuse landfill underground water automatic sampling monitoring device；
Control transmitting device is connect by Ethernet with remote terminal, and the signal of remote terminal transmitting is received.
The refuse landfill underground water automatic sampling monitoring device, wherein groundwater sampling pump discharge is 1-2L/
Min, lift 100-150m.
The refuse landfill underground water automatic sampling monitoring device, wherein multi-parameter on-line computing model includes signal
Receiver and conductivity, temperature, pH, water level sensor；Water level sensor is placed in the well water face of monitoring well hereinafter, conductivity,
Temperature, pH sensor are set in on-line monitoring pond, pass through 485 communication connections between sensor and signal receiver.
The refuse landfill underground water automatic sampling monitoring device, wherein refuse landfill underground water samples automatically
The working voltage of monitoring device is 12V.
The refuse landfill underground water automatic sampling monitoring device, wherein refuse landfill underground water samples automatically
The operation of each section includes each valve in monitoring device.
The refuse landfill underground water automatic sampling monitoring device, wherein sampling bottle is polyethylene bottle, sampling bottle number
Amount is set as needed, and sampling bottle is placed in temperature-controlled box, and it is 4 DEG C that temperature, which is arranged, in temperature-controlled box.
The invention has the advantages that：
1) technical pattern of the invention is ingenious in design reasonable, easy to operate；
2) the automatic well-flushing of landfill yard groundwater monitoring well is realized；
3) automation of refuse landfill groundwater sampling is realized；
4) landfill yard underground water stratified sampling is realized；
5) on-line monitoring of ground water electric conductivity, temperature, pH, water level, real-time Transmission are realized.
Detailed description of the invention
Fig. 1 is the schematic diagram of refuse landfill underground water automatic sampling monitoring device of the present invention.
Identifier declaration in figure：
1 water-level gauge, 2 groundwater sampling pipes, 3 multi-parameter on-line computing models, 4 control transmitting devices, 5 on-line monitoring ponds, 6 take
Sample bottle, 7 well-flushing water collecting pits, 8 scalable capstan winches, 9 solar panels and battery, 10 generators, P groundwater sampling pump.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
Please refer to Fig. 1.Refuse landfill underground water automatic sampling monitoring device provided by the invention, by groundwater sampling pipe
2, scalable capstan winch 8, on-line monitoring pond 5, multi-parameter on-line computing model 3, control transmitting device 4, solar panel and electric power storage
The compositions such as pond 9, generator 10, sampling bottle 6, well-flushing water collecting pit 7, groundwater sampling pump P, temperature-controlled box and aqueduct.Its
In：
It is customization centrifugal pump that groundwater sampling, which pumps P, and flow is 1~2L/min, 100~150m of lift, with control transmission dress
4 connections are set, it can remote control.
The range of scalable capstan winch 8 is 100-150m, can customize range according to actual needs, water inlet is put under water, separately
One end and groundwater sampling pump connect, and pipeline extension can be realized by control transmitting device 4, to take the water of different depth
Sample.
Monitor on-line pond 5 for conductivity, temperature, pH on-line monitoring, the valve of sampling bottle 6 can pass through control transmission dress
4 manipulations are set, length, width and height are 50cm.
Multi-parameter on-line computing model 3 includes signal receiver and conductivity, temperature, pH, water level sensor, and wherein water level passes
As for the underground water well water surface hereinafter, conductivity, temperature, pH sensor are placed in on-line monitoring pond 5, sensor connects sensor with signal
It receives and passes through 485 communication connections between device.
Control transmitting device 4 is connect by Ethernet with remote server, automatic for controlling refuse landfill underground water
The operation of each unit in sampling and monitoring device, the control including each valve.
Control transmitting device of the invention is known device, such as can be low using the flat liter DATA-6311 in model Tangshan
Power consumption GPRS detection and control terminal.
Solar panel and battery 9, generator 10 are filled for entire refuse landfill underground water automatic sampling monitoring
The power supply set, working voltage 12V in sun-drenched weather, solar panel supply system electric energy, while giving battery
Power supply, when solar energy deficiency, then use generator or storage battery power supply.
Sampling bottle 6 is 500mL polyethylene bottle, and Sampling Interface can be set as needed, and periodically manually fetches analysis.Sampling bottle
6 are arranged in temperature-controlled box, and it is 4 DEG C that temperature, which is arranged, in temperature-controlled box.
A height of 2 × 2 × 2m of 7 length and width of well-flushing water collecting pit is periodically discharged after centralized processing for collecting well-flushing water.
The advancing equipment as shown in Figure 1 above refuse landfill monitoring well.Protruding into underwater equipment is water-level gauge 1 and underground
Water sampling pipe 2, water level signal pass through transmission line at most parameter online instrument 3；The length of groundwater sampling pipe 2 passes through can
Flexible capstan winch 8 controls, and emits signal to control transmitting device 4 by remote terminal before sampling, controlling scalable capstan winch 8 makes underground
It above the elongation to underground water well water inlet of water sampling pipe 2 at 1m, opens groundwater sampling and pumps P, control flow as 1L/min progress
Well-flushing opens the valve in on-line monitoring pond 5 at this time, closes the valve of sampling bottle 6, while opening multi-parameter on-line computing model 3, when
Conductivity, temperature, pH value variation stop well-flushing when being no more than ± 5%；The valve for then turning on sampling bottle 6 is sampled, each
It is closed after valve opening 30s, to manually fetch lab analysis；Conductivity, temperature, pH value when the valve of sampling bottle 6 is closed
Data are transmitted to remote server by control transmitting device 4 and record and save.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (6)
1. a kind of refuse landfill underground water automatic sampling monitoring device, including：
Water-level gauge (1) and groundwater sampling pipe (2), are placed in the underwater of monitoring well；
Water-level gauge (1) is connected to multi-parameter on-line computing model (3) by transmission line biography；
Groundwater sampling pipe (2) is separately connected online monitoring pool (5), sampling bottle (6) and well-flushing water by groundwater sampling pump (P)
Collecting pit (7)；
The length of groundwater sampling pipe (2) is controlled by scalable capstan winch (8)；
The power supply of refuse landfill underground water automatic sampling monitoring device is solar panel and battery (9) or generator
(10) it provides；
The operation of each section is controlled by control transmitting device (4) in refuse landfill underground water automatic sampling monitoring device；
Control transmitting device (4) is connect by Ethernet with remote terminal, and the signal of remote terminal transmitting is received.
2. refuse landfill underground water automatic sampling monitoring device according to claim 1, wherein groundwater sampling pump stream
Amount is 1-2L/min, lift 100-150m.
3. refuse landfill underground water automatic sampling monitoring device according to claim 1, wherein multi-parameter on-line monitoring
Instrument includes signal receiver and conductivity, temperature, pH, water level sensor；Water level sensor be placed in the well water face of monitoring well with
Under, conductivity, temperature, pH sensor are set in on-line monitoring pond, are connected between sensor and signal receiver by 485 communications
It connects.
4. refuse landfill underground water automatic sampling monitoring device according to claim 1, wherein refuse landfill underground
The working voltage of water automatic sampling monitoring device is 12V.
5. refuse landfill underground water automatic sampling monitoring device according to claim 1, wherein refuse landfill underground
The operation of each section includes each valve in water automatic sampling monitoring device.
6. refuse landfill underground water automatic sampling monitoring device according to claim 1, wherein sampling bottle is polyethylene
Bottle, sampling bottle quantity are set as needed, and sampling bottle is placed in temperature-controlled box, and it is 4 DEG C that temperature, which is arranged, in temperature-controlled box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051087.XA CN108871873A (en) | 2018-09-10 | 2018-09-10 | Refuse landfill underground water automatic sampling monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051087.XA CN108871873A (en) | 2018-09-10 | 2018-09-10 | Refuse landfill underground water automatic sampling monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108871873A true CN108871873A (en) | 2018-11-23 |
Family
ID=64323655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811051087.XA Pending CN108871873A (en) | 2018-09-10 | 2018-09-10 | Refuse landfill underground water automatic sampling monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108871873A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109900876A (en) * | 2019-02-20 | 2019-06-18 | 锡林郭勒盟金原农牧业科技有限公司 | Utilize the groundwater dynamic monitoring wireless transmission controller of solar energy uninterrupted power supply |
| CN110082164A (en) * | 2019-04-12 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of underground water multilayer undisturbed monitoring system |
| CN110658025A (en) * | 2019-10-23 | 2020-01-07 | 北京欧仕科技有限公司 | Underground water low-speed automatic sampling device |
| CN111562143A (en) * | 2020-05-29 | 2020-08-21 | 中国地质调查局武汉地质调查中心(中南地质科技创新中心) | Automatic multi-parameter groundwater environment layering monitoring well suitable for polluted site |
| CN111705848A (en) * | 2019-08-09 | 2020-09-25 | 杨春花 | Arrangement method of tracking monitoring wells of landfill seepage-proofing system |
| CN111999121A (en) * | 2020-09-09 | 2020-11-27 | 南京万德斯环保科技股份有限公司 | Single-well multi-stage underground water monitoring system |
| CN112557107A (en) * | 2020-10-30 | 2021-03-26 | 上海市政工程设计研究总院（集团）有限公司 | Underground water layered sampling system and method for layered sampling by using same |
| CN112729953A (en) * | 2020-12-30 | 2021-04-30 | 南京万德斯环保科技股份有限公司 | Underground water on-line monitoring and automatic sampling integrated device |
| US11221138B1 (en) | 2020-05-26 | 2022-01-11 | Wm Intellectual Property Holdings, L.L.C. | System and method for remote monitoring and control of landfill and recycling operations |
| CN114061649A (en) * | 2020-08-07 | 2022-02-18 | 中国环境科学研究院 | Automatic synchronous quick on-line monitoring equipment of groundwater quality of water level |
| CN115144349A (en) * | 2022-09-05 | 2022-10-04 | 时代华瑞（北京）环境科技有限公司 | Portable underground online water quality monitoring station and method for stealing drainage by utilizing tracing pipe network of portable underground online water quality monitoring station |
| CN117870826A (en) * | 2024-03-13 | 2024-04-12 | 山东省地矿工程勘察院(山东省地质矿产勘查开发局八〇一水文地质工程地质大队) | Karst groundwater water level fluctuation abnormity early warning equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202562526U (en) * | 2012-05-10 | 2012-11-28 | 上海泽泉科技有限公司 | Underground water remote monitoring device |
| CN104215277A (en) * | 2014-09-17 | 2014-12-17 | 水利部南京水利水文自动化研究所 | Integration underground water online monitor |
| CN105043494A (en) * | 2015-07-13 | 2015-11-11 | 华北水利水电大学 | Real-time underground water level monitoring device |
| CN108196021A (en) * | 2017-12-22 | 2018-06-22 | 中国地质科学院水文地质环境地质研究所 | A kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its control method |
-
2018
- 2018-09-10 CN CN201811051087.XA patent/CN108871873A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202562526U (en) * | 2012-05-10 | 2012-11-28 | 上海泽泉科技有限公司 | Underground water remote monitoring device |
| CN104215277A (en) * | 2014-09-17 | 2014-12-17 | 水利部南京水利水文自动化研究所 | Integration underground water online monitor |
| CN105043494A (en) * | 2015-07-13 | 2015-11-11 | 华北水利水电大学 | Real-time underground water level monitoring device |
| CN108196021A (en) * | 2017-12-22 | 2018-06-22 | 中国地质科学院水文地质环境地质研究所 | A kind of underground water on-line monitoring, representative water sampling integration self-con-tained unit and its control method |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109900876A (en) * | 2019-02-20 | 2019-06-18 | 锡林郭勒盟金原农牧业科技有限公司 | Utilize the groundwater dynamic monitoring wireless transmission controller of solar energy uninterrupted power supply |
| CN110082164A (en) * | 2019-04-12 | 2019-08-02 | 中冶建筑研究总院有限公司 | A kind of underground water multilayer undisturbed monitoring system |
| CN111705848A (en) * | 2019-08-09 | 2020-09-25 | 杨春花 | Arrangement method of tracking monitoring wells of landfill seepage-proofing system |
| CN110658025A (en) * | 2019-10-23 | 2020-01-07 | 北京欧仕科技有限公司 | Underground water low-speed automatic sampling device |
| US11221138B1 (en) | 2020-05-26 | 2022-01-11 | Wm Intellectual Property Holdings, L.L.C. | System and method for remote monitoring and control of landfill and recycling operations |
| US11867395B1 (en) | 2020-05-26 | 2024-01-09 | Wm Intellectual Property Holdings, L.L.C. | System and method for remote monitoring and control of landfill and recycling operations |
| US11761627B1 (en) | 2020-05-26 | 2023-09-19 | Wm Intellectual Property Holdings, L.L.C. | System and method for remote monitoring and control of landfill and recycling operations |
| US11486573B1 (en) | 2020-05-26 | 2022-11-01 | Wm Intellectual Property Holdings, L.L.C. | System and method for remote monitoring and control of landfill and recycling operations |
| CN111562143A (en) * | 2020-05-29 | 2020-08-21 | 中国地质调查局武汉地质调查中心(中南地质科技创新中心) | Automatic multi-parameter groundwater environment layering monitoring well suitable for polluted site |
| CN114061649A (en) * | 2020-08-07 | 2022-02-18 | 中国环境科学研究院 | Automatic synchronous quick on-line monitoring equipment of groundwater quality of water level |
| CN111999121A (en) * | 2020-09-09 | 2020-11-27 | 南京万德斯环保科技股份有限公司 | Single-well multi-stage underground water monitoring system |
| CN112557107A (en) * | 2020-10-30 | 2021-03-26 | 上海市政工程设计研究总院（集团）有限公司 | Underground water layered sampling system and method for layered sampling by using same |
| CN112729953A (en) * | 2020-12-30 | 2021-04-30 | 南京万德斯环保科技股份有限公司 | Underground water on-line monitoring and automatic sampling integrated device |
| CN115144349A (en) * | 2022-09-05 | 2022-10-04 | 时代华瑞（北京）环境科技有限公司 | Portable underground online water quality monitoring station and method for stealing drainage by utilizing tracing pipe network of portable underground online water quality monitoring station |
| CN117870826A (en) * | 2024-03-13 | 2024-04-12 | 山东省地矿工程勘察院(山东省地质矿产勘查开发局八〇一水文地质工程地质大队) | Karst groundwater water level fluctuation abnormity early warning equipment |
| CN117870826B (en) * | 2024-03-13 | 2024-05-28 | 山东省地矿工程勘察院(山东省地质矿产勘查开发局八〇一水文地质工程地质大队) | Karst groundwater water level fluctuation abnormity early warning equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108871873A (en) | Refuse landfill underground water automatic sampling monitoring device | |
| CN114660254B (en) | Groundwater pollutant concentration prediction method | |
| WO2021259009A1 (en) | Operation scheduling method and apparatus for deep sewage drainage tunnel, and computer device | |
| CN202350834U (en) | Automatic testing system for water loss and soil erosion | |
| CN207081691U (en) | A kind of heavy metals in farmland pollution on-line monitoring early warning and real time processing system | |
| CN206038667U (en) | Intelligent monitoring's sewage treatment system can carry out discharge water quality of water | |
| CN112729953A (en) | Underground water on-line monitoring and automatic sampling integrated device | |
| CN107179260A (en) | Underground water evaporation from phreatic water measuring system and method based on technology of Internet of things | |
| CN107247083A (en) | A kind of heavy metals in farmland pollution on-line monitoring early warning and real time processing system and method | |
| CN115266233A (en) | Portable intelligent low-disturbance sampling equipment | |
| CN105043815A (en) | Continuous collection and metering system for underground water | |
| CN116858319A (en) | Miniature water quality early warning method and system | |
| CN109060440A (en) | The micro- well-flushing sampling monitoring well in refuse landfill underground water multilayer position | |
| CN104567993A (en) | Vessel-mounted water detection system | |
| CN106197541A (en) | A kind of subsoil water automated monitor | |
| CN110836790A (en) | Multi-channel automatic measuring device and method for centralized control room of in-situ leaching uranium mining area | |
| Pathak et al. | Integrated runoff and soil loss monitoring unit for small agricultural watersheds | |
| CN204269640U (en) | A kind of seawater detects and collecting device | |
| CN108801589B (en) | Two-dimensional slope soil, surface and underground water motion simulation experiment system | |
| CN215340800U (en) | Basin management system | |
| CN206945497U (en) | A kind of automatic drilling water injection test instrument | |
| CN113843267A (en) | Groundwater remediation system and remediation method for polluted site | |
| CN206990562U (en) | A kind of water quality harvester | |
| CN111579744B (en) | Water quality monitoring device | |
| CN116068957B (en) | System and method for collecting and dispatching rainwater and sewage in bulk cargo port |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |