Summary of the invention
The purpose of this utility model is to provide a kind of water quality mutation biology behavioral indicator monitoring system, realizes the online biological monitoring of water body burst Pollution accident.
The technical solution of the utility model is: a kind of water quality mutation biology behavioral indicator monitoring system, comprise data collector and data analysis system, connect by data transmission link between the two, characteristics are, be provided with monitoring water tank and contrast water body water tank in the data collector, be provided with contrast water body biology sensor and contrast water body water inlet system and contrast water body outlet system in the contrast water body water tank, in monitoring water tank, be provided with monitored water body biology sensor and water delivering orifice, data collector is provided with water inlet, water inlet is connected with monitoring water tank by pipeline, also be provided with signal pickup assembly on data collector, contrast water body biology sensor is connected with signal pickup assembly respectively by data circuit with monitored water body biology sensor.
The difference of water velocity is provided with impulsive force retarding means at pipeline with the monitoring water tank place of connection to the influence of monitor signal in the different biology sensors that cause for the impulse force that prevents water body, and the flow rate of water flow control device can also be set on pipeline.
The utility model is different with the online biological monitoring technology of other water quality, and it is parallel by a plurality of biology sensors, realizes that a plurality of passages of water analysis are analyzed simultaneously; Secondly, the utility model provides biological biological behavior reaction under standard state by the standard water body, and provides reference, contrast for biological behavior in a plurality of biology sensors changes; The 3rd, the utility model is in the water volume flow rate control procedure, in order to keep the unanimity of water volume flow rate in the different sensors, adopted water volume flow rate control device mean allocation to come water, the influence of avoiding using the current velocity controller operation stability problem in use of peristaltic pump one class to cause simultaneously to monitoring result; The 4th, the utility model has further been introduced at the online biological monitoring of the water quality in cross section, river.Native system can not only satisfy the on-line monitoring of comprehensive water-body toxicity, and according to the biological behavior of the contrast that is provided with in the system, guarantee that biological behavior reflects the change of water quality situation truly, accurately in the monitored water body, and satisfy the stability running needs of different monitoring department long term monitoring.
Below in conjunction with drawings and Examples the utility model is done at length and to be explained.
Embodiment
Referring to Fig. 1, this monitoring system mainly is made up of data collector 20 and data analysis system 18, connect by data transmission link 16 between the two, monitoring water tank 10 and contrast water body water tank 12 are installed in data collector 20, wherein, be provided with contrast water body biology sensor 6 and independent contrast water body water inlet system 7 and contrast water body outlet system 8 in the contrast water body water tank 12, in monitoring water tank 10, be provided with monitored water body biology sensor 5 and water delivering orifice 3.On the data collector 20 outside water inlet 1 is set, connecting tube 21 is connected with monitoring water tank 10 on the water inlet 1, also be provided with signal pickup assembly 15 on data collector 20, contrast water body biology sensor 6 is connected with signal pickup assembly 15 respectively by data circuit with monitored water body biology sensor 5.In order to guarantee biological normal existence, fluorescent light 4 and ventilative grid 9 can be installed also on data collector 20.
For the Balance Control flow velocity, be communicated with the place with monitoring water tank 10 at pipeline 21 and impulsive force retarding means 2 can be set (as placing the supporting steel ball of size at pipeline exit, slow down impulsive force), and can further on pipeline 21, flow rate of water flow control device 14 (as valves) be installed.
The monitoring principle is summarized as follows:
1, biological subject is cultivated and is selected
At the characteristics of water quality burst Pollution, the biology that can select comprises fresh water hydrobiont and seawater hydrobiont.Wherein, limnobios and seawater hydrobiont are mainly selected the strong fish of kinetic force, arthropod class, the end annelids etc. of dwelling.Wherein, during fish are selected, mainly select individual for a short time, the kind that susceptibility is strong, arthropod class mainly select Magna class and shrimps etc. to have the strong animal of kinetic force, the end annelids of dwelling to comprise water silk earthworm etc.
The selection of above-mentioned biology is mainly the adult biology after cultivating under standard conditions.In addition,, also can carry out standard conditions then and cultivate the above biology of three generations, carry out online biological monitoring by gathering local above-mentioned species as indicator organism at the water body burst Pollution accident monitoring of zones of different.
2, the water route of water quality mutation biology behavioral indicator monitoring system connects and the associated electrical signals collection
The utility model connects monitored water body by water inlet 1, and after piping 21 enters monitoring water tank 10, at first passes through impulsive force retarding means 2, prevents the influence of the difference of water velocity in the different biology sensors that the impulse force of water body causes to monitor signal.Through monitoring water tank 10, water body reach a certain amount of after, can flow out monitoring water tanks by water delivering orifice 3 by the mode of overflow.Monitored water body biology sensor 5 interior placements are enough, and with the hydrobiont that size sensor is complementary, biological behavior signal is transferred in the signal pickup assembly 15 after can collecting through biology sensor.Simultaneously, feeding standard water body in contrast water body water tank 12, the standard water body is under 22 ± 2 ℃ of situations in holding temperature, enter in the contrast water body biology sensor 6 by water body circulating device (contrast water body water inlet system 7 and contrast water body outlet system 8), place in this biology sensor and monitored water body biology sensor 5 interior equal number and individual identical hydrobionts, after biological behavior signal is collected through biology sensor, also be transferred in the signal pickup assembly 15, so that provide contrast for biological behavior in the monitored water body.Added an amount of biological food every 3 days in the contrast water body, and in monitored water body, in observation process, no food adds.
The biological behavior signal that the utility model provides can adopt live signal to show, also can show by the mode of the different frequency behavior of formation after fast Flourier (Fast Fourier) conversion.
After the signals collecting, can realize the uplink of signal by different signal transmission forms.Realized the data wire transmission mode at present, wireless network transmissions and GPRS transmission etc.Above-mentioned signal transmission is all based on certain host-host protocol.
3, the monitored water body pre-service of water quality mutation biology behavioral indicator monitoring system
Under the normal condition, monitored water body did not carry out any pre-service in the past entering monitoring water tank.But, change after the accommodation that exceeds biology when the water body physical and chemical index, need carry out the water body pre-service.If temperature is crossed low or too high, can guarantee biological normal existence by thermostatically-controlled equipment to the suitable temperature control of monitored water body; When if the water body turbidity is too high (>20NTU), the water body turbidity is handled by external water body filtration unit (less than 50NTU) or small-sized flocculation deposition apparatus (greater than 50NTU), guarantee biological normal existence.If the water body dissolved oxygen DO is low excessively, need to increase aerator; If the water body potential of hydrogen changes violent, regulate the pH value by the mode of automatic interpolation acetic acid or sodium bicarbonate; If the monitoring water body contains chlorine residue, need after chlorine residue disappears in the water body, monitor by the online elimination of water body chlorine residue system.
4, analyze data, carry out online biological monitoring, the real-time analysis water quality condition
Signal in the signal pickup assembly 15 is transferred in the data analysis system 18, analyze data, the water quality condition analysis result is provided.
This water quality mutation biology behavioral indicator monitoring system also can provide remote data transmission and control simultaneously with analyzing data transmission in tele-control system 19, is convenient to long-range ruuning situation of checking water quality mutation biology behavioral indicator monitoring system.
5, the water quality mutation biology behavioral indicator monitoring technology of carrying out at the river
The utility model also can provide the online biological monitoring at cross section, river change of water quality simultaneously.The biology sensor of forming this technology is river biology sensor and signal collection and transmission apparatus 17 (the biological behavior that does not generally comprise the contrast water body changes), and river biology sensor and signal collection and transmission apparatus 17 are connected with data analysis system 18 by data transmission link 16.The biology sensor that this technology provides is mainly with the wire signal transmission mode, and the biology sensor that is in the river provides the wireless signal transmitting formula simultaneously, himself has signals collecting and emitter, and other has accumulator that electric energy is provided.
In conjunction with aforesaid operations, the on-line monitoring that the utility model changes by biological behavior provides a kind of more convenient, fast and accurately water quality online biological monitoring system and technology.Change and contrast the contrast of biological behavior variation in the water body by biological behavior in the monitoring water body, and, biological behavior in the monitored water body is analyzed, and made water analysis and judgement: be normal in conjunction with above-mentioned two kinds of behaviors variation difference in a period of time, unusually, or extremely unusual?
Experimental example 1:
The variable concentrations parathion exposes Daphnia magna behavior variation down, with reference to shown in Figure 2:
In order to verify that the water body burst Pollution influences hydrobiological behavioral indicator, utilize concentration to be respectively 0.07ppm, 0.015ppm, the water body of 0.002ppm and 0.001ppm parathion is as monitored water body, and the employing Daphnia magna is a biological subject.
Biological subject: Daphnia magna, adult, interior 5 of each sensor.
Biology sensor adopts cylindrical black PVC plastics to twine copper coil by inwall and realizes that diameter is 50mm, and length is 50mm.Adopt 8 parallel sensors, wherein 2 are contrast, and all the other 6 is that monitoring water body body directly passes through.The change of water quality comprehensive monitoring adopts 24 hours monitoring periods.Water volume flow rate is 25mL/min in single biology sensor.Above-mentioned standard water body acquisition mode is with 24 hours tap water of aeration, keeps under 20 ± 2 ℃ of conditions of temperature.
Before the experiment beginning, at first the bio-sensor signal to no biological subject makes zero, and begins then in turn by variable concentrations pollutant water body.Mode by the different frequency behavior of formation after fast Flourier (Fast Fourier) conversion shows.
The result as shown in Figure 2, horizontal ordinate express time among the figure, ordinate is represented intensity of performance.
The result shows that in monitoring periods the parathion of variable concentrations is obvious to the behavior variable effect that Daphnia magna produces.And the intensity of performance variation is understood along with the rising of the increase of exposure duration and exposure pollutant levels more violent.And in the contrast water body, it is unusual that the behavior of Daphnia magna changes not performance.
The water quality alarming result: after monitoring is carried out 6~10 hours, system alarm, alarming result: water pollution.
Experimental example 2:
Water body DDVP pollutes the influence that the back changes biological behavior, with reference to shown in Figure 3:
Adopting variable concentrations metrifonate to carry out water body in the case and expose, is 25mL/min by the water volume flow rate of low discharge water volume flow rate automatic controlling system by each biology sensor.Adopt 6 groups of sensors to carry out biological behavioral indicator altogether and change experiment, wherein 2 groups of contrast water bodys obtain by activated carbon filtration, and other 4 groups flow directly into monitored water body.In the process-exposed, keep the water body physical and chemical index to meet the normal existence condition of Daphnia magna: 20 ± 2 ℃ of temperature, turbidity 2NTU, illumination 3000Lx, pH7.5 etc.
Biological subject: Daphnia magna, adult, interior 5 of each sensor.
Biology sensor: adopt cylindrical transparent organic glass to make main body, length 20mm, diameter 15mm, inwall constitutes by twining copper wire.The behavior that the biology sensor that forms is gathered Daphnia magna by four utmost point impedance principles changes.Mode by the different frequency behavior of formation after fast Flourier (Fast Fourier) conversion shows.
Monitoring result as shown in Figure 3, horizontal ordinate express time among the figure, ordinate is represented intensity of performance.
The result shows that after exposing certain hour, the behavior of Daphnia magna changes very obvious, and shows the behavioral toxicity effect gradually.And the behavior intensity of variation is directly related with exposure duration and exposure concentrations.It is unusual that but the behavior of Daphnia magna changes appearance in the control group.The system alarm water pollution.