CN102809638A - Urban drainage monitoring system and water quality and quantity monitoring method implemented by same - Google Patents

Urban drainage monitoring system and water quality and quantity monitoring method implemented by same Download PDF

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Publication number
CN102809638A
CN102809638A CN2012102909861A CN201210290986A CN102809638A CN 102809638 A CN102809638 A CN 102809638A CN 2012102909861 A CN2012102909861 A CN 2012102909861A CN 201210290986 A CN201210290986 A CN 201210290986A CN 102809638 A CN102809638 A CN 102809638A
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water
water quality
automatic
monitoring
monitoring system
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程晓波
姚杰
潘炜
陈华
丁敏
程江
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Shanghai Municipal Sewerage Co ltddrainage Design Research Branch
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Shanghai Municipal Sewerage Co ltddrainage Design Research Branch
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Abstract

The invention relates to an urban drainage monitoring system and a water quality and water quantity monitoring method implemented by the same. The monitoring system comprises a water inlet system, an automatic water quality monitoring module, an automatic water quantity monitoring module and a data acquisition and control module. The monitoring system can respectively monitor water quality and water quantity according to set automatic modes in non-rainfall periods and rainfall periods, and running of the various modules can be controlled in a manual mode. Compared with the prior art, the urban drainage monitoring system and the water quality and water quantity monitoring method have the advantages that bottlenecks such as long response time, low data acquisition frequency and complication in maintenance of existing online water quality and water quantity monitoring equipment are overcome, and water quality and water quantity change processes in the non-rainfall periods and the rainfall periods of a drainage system can be accurately, quickly, continuously and automatically monitored in real time in an online manner.

Description

A kind of municipal drainage monitoring system and to the monitoring method of water quality and quantity
Technical field
The present invention relates to a kind of water quality and quantity monitoring system and application process thereof, especially relate to a kind of municipal drainage monitoring system and the monitoring method of water quality and quantity.
Background technology
Unwatering system be the facilities such as processing and discharging of collection, conveying, the water quality of draining be combined in a certain way overall.Influenced by principal elements such as history, physical geography, mankind's activity and socio-economic development level; Mostly China's most of sewerage system in south is the combined system system; And the heavy rain of flood control and drainage design reoccurrence period more domestic developed country city is on the low side, causes the unwatering system overflow of overproof rainfall period in flood season that the water security in city, the quality of water environment of taking in water body, aquatic ecosystem have been caused and seriously influenced.More than marine heart city Suzhou River be example, surplus the littoral big or small unwatering system 30, surpass the unwatering system drainability annual flood season in 6~September between storm period a large amount of overflows of combined sewage get into this urban look river course of Suzhou River.A large amount of polluters have been carried in the overflow sewage from urban surface, city domestic sewage, industry and commerce waste water and drainage system pipe deposition; Water body to Suzhou River has caused the impact of serious short duration, high pollution intensity to pollute; This also is after the inner city, Shanghai surpasses 85% point-source pollution Be Controlled, and Suzhou River quality of water environment and aquatic ecosystem further improve one of major reason of difficulty increasing.
Urban look river course etc. is taken in the water quality harm of water body for effective control sewerage system pollution load of overflow; Shanghai takes the lead in having carried out basic theory and practical studies work in a large amount of early stage at home; And build earlier in advance, and try earlier; Cheng Doulu, new Changping, the clear garden of dream, Jiangsu road and 5 large-scale rainwater storage ponds of Furong River (total useful volume reaches 70700m3) have been built in high starting point, high-quality and high level ground in Suzhou River environment comprehensive regulation the second stage of the project, in the hope of giving full play to the function that storage pond reduces discharging unwatering system overflow sewage between the flush period in flood season.Owing to receive the combined influence of multiple factors such as Rainfall Characteristics, underlying surface type, the size of population, sewage composition, unwatering system interception ratio, unwatering system operating water level, pipeline sediment and pipe-dredging maintenance; Water quality and quantity Changing Pattern between the sewerage system flush period is complicated, thereby the control of unwatering system pollution load of overflow is a pollution control problem extremely complicated and changeable.Wherein, grasp the core place that overflow water quality and quantity Changing Pattern is this pollution control problem.
Traditional method of obtaining sewerage system change of water quality rule is to take on-the-spot hand sampling in early stage, and the later experiments chamber is analyzed.Receive that rainfall is sudden, traffic route stops up, staff is arranged factor affecting such as deficiency, hand sampling usually can not in time be carried out, and time-consuming, effort, expensive, the artificial interference influence is big.After personnel such as also exist were on the scene, rainfall had begun a period of time or has finished, and overflow phenomena has taken place or finished, can not in time obtain the overflow water sample, and this problem is particularly outstanding between the summer storm period.For multiple spot position, unwatering system water sampling on a large scale, above-mentioned difficulties is more outstanding.
Though existing robotization monitoring water quality on line system is high because of its automaticity; Can real-time, stable, reliably accurate, fast monitored data characteristic be provided, be widely used in numerous areas such as industrial waste water water quality monitoring, the Inlet and outlet water water quality monitoring of purification of water quality factory, water quality of river monitoring and drinking water treatment process control at present.But because the existing robotization monitoring water quality on line SDA system data analysis cycle is long; With national energy-saving and emission-reduction performance assessment criteria chemical oxygen demand COD and ammonia nitrogen is example; The short data analytical cycle of the COD in-line analyzer of U.S. HACH brand is 1 hour; The minimum analysis of the large-scale online nitrogen phosphorus analyser TresCon of Germany WTW is at interval also about 10 minutes; And instrument and equipment often is out of order, and can not satisfy the water quality sampling and analyzing cycle of minute level of unwatering system overflow water quality and quantity Changing Pattern needs between the research flush period, and continues, stablizes, provides reliably quick, the accurately requirement of water quality and quantity data.
This shows, receive many-sided effects limit such as present economy, technology, equipment and personnel, also have bottleneck, need to be resolved hurrily to real-time, accurate, the fast automatic monitoring of sewerage system overflow water quality and quantity change procedure and characteristic thereof.
Summary of the invention
The object of the invention is exactly a kind of municipal drainage monitoring system of real-time, accurate, fast automatic monitoring to be provided and to the monitoring method of water quality and quantity in order to overcome the defective that above-mentioned prior art exists.
The object of the invention can be realized through following technical scheme:
A kind of municipal drainage monitoring system, this system is connected with water inlet system, and described water inlet system is made up of inlet pipeline, counter-flushing pipeline, sample introduction water tank, pre-service water tank, overflow passage, and the municipal drainage monitoring system comprises:
Automatic water quality monitoring module: comprise into water automatic sampler, pH meter, COD (COD) on-line automatic analyzer, NH 4 +-N (ammonia nitrogen) on-line automatic analyzer and suspension (SS) on-line automatic analyzer are connected with the sample introduction water tank through pipeline respectively;
The automatic monitoring modular of the water yield: for being arranged on the plug-in type Doppler flowmeter in the Overflow drainage pipeline;
Data acquisition and control module: comprise hardware system and software systems; Described hardware system comprises field data acquiring terminal, wireless GPRS communication module, multifunction electric scale, humiture detector; Described software systems have OPC (OLE for Process Control) data acquisition, DSC (Data Service Center) data communication, real time data demonstration, historical data conditioning function, and data acquisition and control module are connected with water inlet system, automatic water quality monitoring module, the automatic monitoring modular Long-distance Control of the water yield.
Described inlet pipeline is provided with into water protection net.
Described pH meter, COD on-line automatic analyzer, NH 4 +-N on-line automatic analyzer and suspension on-line automatic analyzer are separate immersion cell.
Described Doppler flowmeter is all being buried underground situation underground according to the field condition drainage pipeline in mounting bracket is plugged in underground Overflow drainage pipeline, select probe plug-in type Doppler flowmeter for use.Be excavated to pipe section earlier, make flowmeter maintenance well; Then go out to install the perforate mounting bracket,, probe valve and fixed support are installed by professional hole making drill perforate (can be with the perforate of water pressurized) in pipeline tapping; At last the Doppler flowmeter probe is inserted, the debugging running is to qualified.
The data of described automatic water quality monitoring module and the automatic monitoring modular collection of the water yield are through wireless GPRS mode and the data acquisition and the control module communication link that are arranged on water quality and quantity automatic monitoring system center; Upload the data of real-time collection, and control the operation of on-the-spot water quality and quantity monitoring equipment through data acquisition and control module.
The method of utilizing the municipal drainage monitoring system that water quality and quantity is monitored, this monitoring system can monitored water quality and quantity respectively between non-flush period and between flush period automatically.
Between non-flush period, keep the water pump in the water inlet system often to open continuous service, guarantee the water sample circulation, divided 3 days, utilize the automatic monitoring modular of water yield every day with 1 hour SI continuous acquisition dry flow sewage water sample more than 12.PH meter, COD on-line automatic analyzer, NH 4 +The survey frequency of-N on-line automatic analyzer and suspension on-line automatic analyzer is set at 10 minutes, can obtain a pH value, COD, NH in per 10 minutes 4 +-N and SS water quality data.PH value, COD, the NH of while water sample that experimental determination is gathered 4 +-N and SS index are set up the automatic water quality monitoring module monitors arrives between non-flush period reading and the calibration formula between its laboratory measured value, according to the coefficient of determination R of calibration formula 2The reliability of judging automatic water quality monitoring module reading gets final product.
Between flush period, keep the water pump in the water inlet system often to open continuous service, guarantee the water sample circulation, divide 3 rainfalls, utilize the automatic monitoring modular of the water yield by 5 minutes SI continuous acquisition rainfall combined sewage water sample more than 12.PH meter, COD on-line automatic analyzer, NH 4 +The survey frequency of-N on-line automatic analyzer and suspension on-line automatic analyzer is set at 1 minute, can obtain a pH value, COD, NH in per 1 minute 4 +-N and SS water quality data, pH value, COD, the NH of water sample that experimental determination is gathered simultaneously 4 +-N and SS index are set up the automatic water quality monitoring module monitors arrives between non-flush period reading and the calibration formula between its laboratory measured value, according to the coefficient of determination R of calibration formula 2The reliability of judging automatic water quality monitoring module reading gets final product.
R 2In the time of>=0.90, think that the correlativity of calibration formula reaches good above level, judge that this calibration formula can use, otherwise, repeat water sampling and water quality lab analysis step, up to enough data samples totally, reach R 2>=0.90 requirement.
The municipal drainage monitoring system can also adopt the running of each module of manual mode control.
Compared with prior art; The present invention overcome existing on-line monitoring of water quality and quantity device responds time long, data acquiring frequency is lower, safeguard bottleneck such as complicacy; Can monitor the water quality and quantity change procedure between non-rainfall of unwatering system and flush period by real-time, accurate, quick and continuous automatic on-line; Compared with prior art, the present invention has the following advantages:
(1) adopts on-site data gathering and remote data transmission control system; Utilize automatic high frequency water quality water quantity monitoring instrument to obtain the method for unwatering system water quality and quantity data; Overcome existing monitoring water quality on line device responds time long, data acquiring frequency is lower, safeguard bottleneck such as complicacy, can be in time, robotization, in real time, fast and accurately obtain the water quality and quantity change procedure of sewerage system overflow.
(2) unwatering system overflow water quality and quantity data acquiring frequency is high, can reach a second level the soonest.
(3) water quality and quantity automatic monitoring system automaticity is high, operation interface is convenient, be easy to control.
(4) save time, laborsaving, artificial interference influence is little.
(5) saved the analysis cost of conventional water quality of later stage.
(6) equipment operation maintenance is convenient, the cycle is long, expense is low.
Description of drawings
Fig. 1 is the structural representation of municipal drainage monitoring system;
Rainfall overflow sewage pH value, COD, NH that Fig. 2 obtains for embodiment 1 monitoring 4 +-N, SS and Variations in Flow Changes;
Rainfall overflow sewage pH value, COD, NH that Fig. 3 obtains for embodiment 2 monitorings 4 +-N, SS and Variations in Flow Changes.
Among the figure, 1 is that water inlet system, 11 is that sample introduction water tank, 12 is that pre-service water tank, 13 is that inlet pipeline, 14 is that overflow passage, 15 is that water pump, 2 is that the automatic monitoring modular of the water yield, 21 is that unwatering system sump, 22 is that Doppler flowmeter, 3 is that automatic water quality monitoring module, 31 is that round-the-clock sampling instrument, 32 is that pH meter, 33 is NH 4 +-N on-line automatic analyzer, 34 is that COD on-line automatic analyzer, 35 is that suspension on-line automatic analyzer, 4 is data acquisition and control module.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment 1
The enforcement time is 6~July in 2011, and the place is the flat raft water system in the Xinchang, Shanghai City, and this enforcement is operated according to method mentioned above fully.
In early June, (1) 2011, flat raft water system sump made up the automatic water quality monitoring water inlet system in the Xinchang, Shanghai City.
Make up pH meter, COD, NH in mid-June, (2) 2011 by immersion, probe method, high frequency measurement 4 +The unwatering system automatic water quality monitoring system that-N and SS independence automatic water quality monitoring unit are constituted.
(3) in the late June, 2011~proofread and correct between the early July flush period and calibration pH meter, COD, NH 4 +4 automatic water quality monitoring probes such as-N and SS.Early stage is at the SI of unwatering system sump by 5 minutes, totally 40 of the unwatering system combined sewage water samples of 3 rainfalls of continuous acquisition.Experimental determination pH value, COD, the NH of water sample 4 +-N and SS index have been set up the linear calibration formula between probe reading of automatic water quality monitoring between flush period and the actual value.The coefficient of determination R of calibration formula 2=0.95, satisfy R 2>=0.90 requirement thinks that this calibration formula can use.
(4) in early June, 2011 water yield automatic monitoring system is installed on the unwatering system overflow pipe.
(5) make up on-site data gathering and remote data transmission control system in mid-June, 2011.
(6) the automatic monitoring pattern of water quality and quantity data is set non-rainfall pattern, rainfall pattern and manual mode.
On July 14th, (7) 2011; In opening water discharge system of control center water quality and quantity automatic monitoring system; According to the rainfall monitoring pattern of setting in the step (6); Automatically gather the water quality and quantity data, obtained real-time, accurate, quick and continuous unwatering system water quality and quantity data, and the calibration formula of (3) foundation is set by step revised water quality data.The change curve of water quality and quantity is seen Fig. 2.
Embodiment 2
During embodiment 1 carried out, 7~August in 2011, the Furong River unwatering system in Shanghai City carried out the second routine embodiment, and this enforcement is operated according to method mentioned above fully.
In early July, (1) 2011, Furong River unwatering system sump made up the automatic water quality monitoring water inlet system in Shanghai City.
Make up pH meter, COD, NH in mid-July, (2) 2011 by immersion, probe method, high frequency measurement 4 +The unwatering system automatic water quality monitoring system that-N and SS independence automatic water quality monitoring unit are constituted.
(3) in the late July, 2011~proofread and correct with the calibration automatic water quality monitoring between the early August flush period and pop one's head in.Early stage at sump by totally 38 of the unwatering system combined sewage water samples of 3 rainfalls of SI continuous acquisition of 5 minutes.The pH value of experimental determination water sample, COD, NH 4 +-N and SS water-quality guideline are set up the linear calibration formula between probe reading of automatic water quality monitoring between flush period and the actual value.The coefficient of determination R of calibration formula 2=0.97, satisfy R 2>=0.90 requirement thinks that this calibration formula can use.
(4) in early July, 2011 water yield automatic monitoring system is installed on the unwatering system overflow pipe.
(5) make up on-site data gathering and remote data transmission control system in mid-July, 2011.
(6) the automatic monitoring pattern of water quality and quantity data is set non-rainfall pattern, rainfall pattern and manual mode.
On August 12nd, (7) 2011; In opening water discharge system of control center water quality and quantity automatic monitoring system; According to the rainfall monitoring pattern of setting in the step (6); Automatically gather the water quality and quantity data, obtained real-time, accurate, quick and continuous unwatering system water quality and quantity data, and the calibration formula of (3) foundation is set by step revised water quality data.The change curve of water quality and quantity is seen Fig. 3.
Embodiment 3
A kind of municipal drainage monitoring system; Its structure is as shown in Figure 1; This monitoring system is connected with water inlet system 1, and water inlet system 1 is made up of sample introduction water tank 11, pre-service water tank 12, inlet pipeline 13, overflow passage 14, counter-flushing pipeline, and inlet pipeline 13, counter-flushing pipeline, overflow passage 14 are formed the connecting tube of sample introduction water tank 11 and pre-service water tank 12; In addition, on inlet pipeline 13, also be provided with into water protection net.
The municipal drainage monitoring system is made up of the automatic monitoring modular of the water yield 2, automatic water quality monitoring module 3, data acquisition and control module 4.
The automatic monitoring modular 2 of the water yield: for being arranged on the plug-in type Doppler flowmeter 22 in the drainage pipeline; After pipeline is through unwatering system sump 21, be connected with pre-service water tank 12; Doppler flowmeter 22 is in mounting bracket is plugged in subsoil drain; All bury underground situation underground according to the field condition drainage pipeline, selecting probe plug-in type Doppler flowmeter 22 for use.Be excavated to pipe section earlier, make flowmeter maintenance well; Then go out to install the perforate mounting bracket,, probe valve and fixed support are installed by professional hole making drill perforate (can be with the perforate of water pressurized) in pipeline tapping; At last Doppler flowmeter 22 probes are inserted, the debugging running is to qualified;
Automatic water quality monitoring module 3 is separate immersion cell, comprises round-the-clock sampling instrument 31, pH meter 32, COD on-line automatic analyzer 33, NH 4 +-N on-line automatic analyzer 34 and suspension on-line automatic analyzer 35 are connected with sample introduction water tank 11 through pipeline respectively;
Data acquisition and control module 4: comprise hardware system and software systems; Hardware system comprises field data acquiring terminal, wireless GPRS communication module, multifunction electric scale, humiture detector, and software systems have OPC (OLE for Process Control) data acquisition, DSC (Data Service Center) data communication, real time data demonstration, historical data conditioning function.
The data that the automatic monitoring modular 2 of the automatic water quality monitoring module 3 and the water yield is gathered are through wireless GPRS mode and the data acquisition and control module 4 communication links that are arranged on water quality and quantity automatic monitoring system center; Upload the data of real-time collection, and control the operation of on-the-spot water quality and quantity monitoring equipment through data acquisition and control module.
The method of utilizing the municipal drainage monitoring system that water quality and quantity is monitored, this monitoring system can debugged respectively water quality and quantity is being monitored between non-flush period and between flush period.
Between non-flush period; Keep the water pump in the water inlet system often to open continuous service, preserve the water sample circulation, divided 3 days; Utilize the automatic monitoring modular of water yield every day with 1 hour SI continuous acquisition dry flow sewage water sample more than 12, pH meter 32, COD on-line automatic analyzer 33, NH 4 +The survey frequency of-N on-line automatic analyzer 34 and suspension on-line automatic analyzer 35 is set at 10 minutes, can obtain a pH value, COD, NH in per 10 minutes 4 +-N and SS water quality data, pH value, COD, the NH of experimental determination water sample simultaneously 4 +-N and SS index are set up the automatic water quality monitoring module monitors arrives between non-flush period reading and the calibration formula between its laboratory measured value, according to the coefficient of determination R of calibration formula 2The reliability of judging automatic water quality monitoring module reading gets final product.
Between flush period; Keep the water pump in the water inlet system often to open continuous service, preserve the water sample circulation, divide 3 rainfalls; Utilize the automatic monitoring modular of the water yield by 5 minutes SI continuous acquisition rainfall combined sewage water sample more than 12, pH meter 32, COD on-line automatic analyzer 33, NH 4 +The survey frequency of-N on-line automatic analyzer 34 and suspension on-line automatic analyzer 35 is set at 1 minute, can obtain a pH value, COD, NH in per 1 minute 4 +-N and SS water quality data, pH value, COD, the NH of experimental determination water sample simultaneously 4 +-N and SS index are set up the automatic water quality monitoring module monitors arrives between non-flush period reading and the calibration formula between its laboratory measured value, according to the coefficient of determination R of calibration formula 2The reliability of judging automatic water quality monitoring module reading gets final product.
R 2In the time of>=0.90, think that the correlativity of calibration formula reaches good above level, judge that this calibration formula can use, otherwise, repeat water sampling and water quality lab analysis step, up to enough data samples totally, reach R 2>=0.90 requirement.
In addition; The municipal drainage monitoring system can also adopt the running of each module of manual mode control; In water quality and quantity automatic monitoring system center according to monitoring pattern; Opening water discharge system water quality and quantity automated monitor obtains real-time, accurate, quick and continuous unwatering system water quality and quantity data automatically, and the calibration formula of setting up is revised water quality data.

Claims (10)

1. municipal drainage monitoring system, this system is connected with water inlet system, and described water inlet system is made up of inlet pipeline, counter-flushing pipeline, sample introduction water tank, pre-service water tank, overflow passage, it is characterized in that, and the municipal drainage monitoring system comprises:
Automatic water quality monitoring module: comprise into water automatic sampler, pH meter, COD on-line automatic analyzer, NH 4 +-N on-line automatic analyzer and suspension on-line automatic analyzer are connected with the sample introduction water tank through pipeline respectively;
The automatic monitoring modular of the water yield: for being arranged on the plug-in type Doppler flowmeter in the Overflow drainage pipeline;
Data acquisition and control module: comprise hardware system and software systems; Described hardware system comprises field data acquiring terminal, wireless GPRS communication module, multifunction electric scale, humiture detector; Described software systems have OPC (OLE for Process Control) data acquisition, DSC (Data Service Center) data communication, real time data demonstration, historical data conditioning function, and data acquisition and control module are connected with water inlet system, automatic water quality monitoring module, the automatic monitoring modular Long-distance Control of the water yield.
2. a kind of municipal drainage monitoring system according to claim 1 is characterized in that described inlet pipeline is provided with into water protection net.
3. a kind of municipal drainage monitoring system according to claim 1 is characterized in that, described pH meter, COD on-line automatic analyzer, NH 4 +-N on-line automatic analyzer and suspension on-line automatic analyzer are separate immersion cell.
4. a kind of municipal drainage monitoring system according to claim 1 is characterized in that described Doppler flowmeter is in mounting bracket is plugged in underground Overflow drainage pipeline.
5. a kind of municipal drainage monitoring system according to claim 1; It is characterized in that; The data of described automatic water quality monitoring module and the automatic monitoring modular collection of the water yield are through wireless GPRS mode and the data acquisition and the control module communication link that are arranged on water quality and quantity automatic monitoring system center; Upload the data of real-time collection, and control the operation of on-the-spot water quality and quantity automated monitor through data acquisition and control module.
6. a method of utilizing the described municipal drainage monitoring system of claim 1 that water quality and quantity is monitored is characterized in that, this monitoring system can debugged respectively water quality and quantity is monitored automatically between non-flush period and between flush period.
7. the method that municipal drainage monitoring system according to claim 6 is monitored water quality and quantity; It is characterized in that: between non-flush period; Keep the water pump in the water inlet system often to open continuous service; Assurance water sample circulation divided 3 days, utilized the automatic monitoring modular of water yield every day with 1 hour SI continuous acquisition dry flow sewage water sample more than 12; PH meter, COD on-line automatic analyzer, NH 4 +The survey frequency of-N on-line automatic analyzer and suspension on-line automatic analyzer is set at 10 minutes, can obtain a pH value, COD, NH in per 10 minutes 4 +-N and SS water quality data; PH value, COD, the NH of while water sample that experimental determination is gathered 4 +-N and SS index are set up the automatic water quality monitoring module monitors arrives between non-flush period reading and the calibration formula between its laboratory measured value, according to the coefficient of determination R of calibration formula 2The reliability of judging automatic water quality monitoring module reading gets final product.
8. the method that municipal drainage monitoring system according to claim 6 is monitored water quality and quantity; It is characterized in that: between flush period; Keep the water pump in the water inlet system often to open continuous service; Assurance water sample circulation divides 3 rainfalls, utilizes the automatic monitoring modular of the water yield by 5 minutes SI continuous acquisition rainfall combined sewage water sample more than 12; PH meter, COD on-line automatic analyzer, NH 4 +The survey frequency of-N on-line automatic analyzer and suspension on-line automatic analyzer is set at 1 minute, can obtain a pH value, COD, NH in per 1 minute 4 +-N and SS water quality data; PH value, COD, the NH of while water sample that experimental determination is gathered 4 +-N and SS index are set up the automatic water quality monitoring module monitors arrives between non-flush period reading and the calibration formula between its laboratory measured value, according to the coefficient of determination R of calibration formula 2The reliability of judging automatic water quality monitoring module reading gets final product.
9. the method for according to claim 7 or 8 described municipal drainage monitoring systems water quality and quantity being monitored is characterized in that the coefficient of determination R of calibration formula 2In the time of>=0.90, think that the correlativity of calibration formula reaches good above level, judge that this calibration formula can use.
10. the method that municipal drainage monitoring system according to claim 6 is monitored water quality and quantity is characterized in that the municipal drainage monitoring system can also adopt the running of each module of manual mode Long-distance Control.
CN2012102909861A 2012-08-15 2012-08-15 Urban drainage monitoring system and water quality and quantity monitoring method implemented by same Pending CN102809638A (en)

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