CN109060920A - A kind of microorganism electrochemical water quality monitoring system based on Internet of Things control - Google Patents
A kind of microorganism electrochemical water quality monitoring system based on Internet of Things control Download PDFInfo
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Abstract
The invention discloses a kind of microorganism electrochemical water quality monitoring systems based on Internet of Things control.The water quality monitoring system includes: microbiological fuel cell sensor and cloud management service system；Wherein, the cloud management service system includes: wireless data transfer module, base station, Cloud Server and cell phone client.The application is electrically connected using wireless data transfer module and microbiological fuel cell sensor, realizes the remote transmission of electric signal；Electric signal can be extracted using cell phone client, obtain water quality monitoring information in time, greatly improve the remote monitoring performance to water body.In addition, the present invention also passes through the multiple channels of setting, the accuracy rate of water quality monitoring and the stability of system operation are improved.
Description
Technical field
The present invention relates to water quality monitoring fields, and in particular to a kind of microorganism electrochemical water quality prison based on Internet of Things control
Examining system.
Background technique
Water quality monitoring is particularly significant safely for ensureing water quality and water ecological environment.Biosensor can monitor water body
Comprehensive toxicity has in water quality monitoring system and widely applies.Microbiological fuel cell (Microbial Fuel Cell,
MFC) sensor is usually using the biological anode of catalyzing organic oxidation as sensing unit, in the water environment where biological anode
When condition of water quality changes, the activity for the microorganism being attached on biological anode changes.Therefore, it can be passed by record MFC
Change in electric on the external circuit of sensor, to reflect change of water quality.
The existing water quality monitoring system based on microbiological fuel cell sensor completes its prison of test in the lab mostly
Survey performance.In test, uses artificial distribution as monitored water sample mostly, also there is a small amount of research to use the reality for being derived from scene
Border water body is as monitored water sample.
And in practical applications, when being monitored for practical water body, the difficulty faced is that the region that is related to is big, required
It layouts wide, and is unfavorable for artificial on duty.Therefore, the water quality monitoring system based on microbiological fuel cell sensor is applied to
Practical aquatic monitoring, remote data transmission performance, teledata check that distant early warning notice push is particularly significant.
In addition, the long-term on-line monitoring of microorganism electrochemical water quality monitoring system requires its monitoring signals to have reproducibility,
Wherein the performance recovery ability of microbiological fuel cell sensor directly influences service life and data reappearance.Although micro- life
Microbial cell in object fuel cell sensor on electrode has certain self-repairing capability.But it is sent out in laboratory research
Existing, after the generation of toxicity impact load, especially under high concentration toxicant, the toxic action that microorganism is subject to was at 1-2 days
It is inside irreversible.It would therefore be highly desirable to efficient biological fuel cell sensor performance restoration methods, improve service life and data
Reproducibility.
Summary of the invention
In view of above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of based on Internet of Things control
Microorganism electrochemical water quality monitoring system, and the side using microorganism electrochemical water quality monitoring system progress water quality monitoring
Method.It is electrically connected using wireless data transfer module and microbiological fuel cell sensor, realizes the long-range of electric signal
Transmission；Electric signal can be extracted using cell phone client, obtain water quality monitoring information in time, greatly improve to water
The remote monitoring performance of body.In addition, the present invention also passes through the multiple channels of setting, the accuracy rate and system fortune of water quality monitoring are improved
Capable stability.
One aspect of the present invention provides a kind of microorganism electrochemical water quality monitoring system based on Internet of Things control, comprising:
Microbiological fuel cell sensor, for generating the electric signal of characterization water quality；And
Cloud management service system；Wherein,
The cloud management service system includes: wireless data transfer module, base station, Cloud Server and cell phone client,
The wireless data transfer module is electrically connected by channel and the microbiological fuel cell sensor, is adopted
Collect the electric signal；
The base station is by the final electric signal transmission to the Cloud Server；
The cell phone client extracts the electric signal from the Cloud Server, and carries out data processing, generates water quality prison
Measurement information.
Present inventor is electrically connected using wireless data transfer module and microbiological fuel cell sensor,
The acquisition to electric signal is realized, and by being used cooperatively base station and Cloud Server, realizes the remote transmission of electric signal.So
One, the application can receive in time water quality monitoring information, receive alarm using cell phone client as terminal, so as to
Realize long-range effective monitoring to water body.
In a preferred embodiment of the invention, the microbiological fuel cell sensor includes:
Anode chamber is communicated with anode water inlet line and anode outlet conduit in the anode chamber；
It is set to the biological anode of the anode chamber；
Cathode chamber relative to anode chamber setting；
It is set to the cathode of the cathode chamber；
The amberplex being set between the anode chamber and the cathode chamber；And
It is connected to the electric signal recording device of the biological anode and the cathode.
According to the present invention, the preparation method of microorganism fuel cell sensor includes:
Microbiological fuel cell sensor precast body is provided, the microbiological fuel cell sensor precast body includes:
Anode chamber is communicated with anode water inlet line and anode outlet conduit in the anode chamber；
It is set to the anode material of the anode chamber；
Cathode chamber relative to anode chamber setting；
It is set to the cathode of the cathode chamber；
The amberplex being set between the anode chamber and the cathode chamber；And
It is connected to the electric signal recording device of the anode material and the cathode；
Anode mixture liquid and catholyte are provided, the anode mixture liquid includes anolyte and inoculation liquid；
The anode material of microbiological fuel cell sensor precast body and cathode are electrically connected, and by the anode mixture
Liquid is passed through anode water inlet line, flows through the anode material to penetrate, and makes to grow on the anode material by microbial acclimation
Anerobe film, until outputting current steadily.
According to the present invention, the anode material and cathode can be plane or three-dimensional carbon material, including deposition, smearing, oxygen
Change the carbon material after the modes such as reduction are modified, can also be the non-carbon material of electric conductivity height and good biocompatibility, preferably
For carbon cloth or carbon felt, more preferably with a thickness of the carbon felt of 3mm.
According to the present invention, the cathode can be using oxygen, proton, ferric iron etc. as electron donor, preferably with ferric iron
As electron donor.
According to the present invention, the anolyte can be the sewage manually prepared, such as be given birth to by organic matter, microelement, dimension
The organic liquid mixture for microbe survival of the configurations such as element；Low oxygen content and the reality there are high-enriched organics can also be used
Border waste water, such as can be sanitary wastewater.
According to the present invention, the inoculation liquid can be operation half a year and the MFC anode mixture liquid normally produced electricity, inoculum concentration
It is preferably based on the 5%-15% for narrating the total volume of anode chamber's Anodic mixed liquor.
According to the present invention, the inoculation liquid is added in the anolyte, anode mixture liquid is made.The anode mixture
The flow velocity of the excessively described anode material of liquid stream is 0.1mL/min-10mL/min.
According to the present invention, the catholyte can be potassium ferricyanide solution or liquor potassic permanganate etc..
According to the present invention, biological anode is used to provide electronics primary source for cathode, and cathode is for receiving electronics, thus complete
At circuit communication.Therefore, the microbiological fuel cell sensor in the application is not necessarily to additional power source, can externally export telecommunications
Number.
According to the present invention, drawing electric material can be by including binding or the method compressed and biological anode, cathode or circuit
In other component be connected, the metal for drawing electric material and can be relatively inert, preferably Filamentous, ring plate shape or screwed
Titanium or gold.What is used in the present invention draws electric material for cyclic annular titanium sheet.
According to the present invention, electric signal recording device is fixed value resistance.When microorganism electrochemical water quality monitoring system executes prison
When survey task, the both ends of fixed value resistance generate voltage difference, also, the voltage difference generated can be adopted by wireless data transfer module
Collection.
In another preferred embodiment of the invention, anode is provided on the wireless data transfer module and is connect
Mouth and cathode interface,
The close cathode side of the electric signal recording device is connect by conducting wire with the anode interface, the electric signal
The close anode side of recording device is connect by conducting wire with the cathode interface, to form the channel.
According to the present invention, wireless data transfer module includes built-in analog-digital chip, and configured with DC power supply with
And antenna.It can will be emitted to from the collected electric signal of microbiological fuel cell sensor through antenna by the analog-digital chip
Base station, and then it is sent to Cloud Server.Wherein, the voltage of DC power supply can be 12V, and electric current can be 2A.
In another preferred embodiment of the invention, the microorganism electrochemical water quality monitoring system be provided with to
Few two microbiological fuel cell sensors, and at least two are provided on the wireless data transfer module correspondingly
Anode interface and cathode interface,
The close cathode side of the electric signal recording device of at least two microbiological fuel cells sensor is by leading
Line is separately connect at least two anode interface, and the close anode side of the electric signal recording device is by leading
Line is independently connect with the cathode interface, to form at least two channels.
Present inventor has found under study for action, when using single channel, that is, only relies on a Microbial fuel electricity
The electric signal that pond sensor generates is come when realizing alarm, rate of false alarm is higher.For example, when there is event in microbiological fuel cell sensor
When barrier (such as water inlet tracheal rupture or blocking), entire monitoring system will lose monitoring capability.
To solve this problem, present inventor has used at least two microorganisms in the monitoring system of the application
Fuel cell sensor, and then can produce at least two electric signals, constitutes multiple groups parallel laboratory test, and increase monitoring information can
Reliability.
In another preferred embodiment of the invention, pass through at least two electricity of at least two channel acquisitions
Signal carries out data processing again after being averaged by cell phone client.
In another preferred embodiment of the invention, the data processing includes by the electric signal and early warning threshold
Value is compared, and when the electric signal reaches threshold value of warning, generates the water quality monitoring information of " water pollution ".
In another preferred embodiment of the invention, the threshold value of warning is the 5- of the upper electric signal extracted
80%, more preferably 10-50%.
According to the present invention, under the conditions of normal water quality, the oxidation operation process of biological anode, the reduction process of cathode with
And the electric signal recorded on external circuit is all continual and steady state, electric signal will not decay.But go out suddenly when in water body
When existing toxicant, the growth of anode microorganism can be inhibited, external circuit power on signal is caused to weaken.In short, when water quality is dirty
When dye, the real-time tele-communication number of extraction will decay relative to a upper electric signal for extraction.Therefore, the application is according to the reality of extraction
When electric signal relative to the decaying of a upper electric signal for extraction, threshold value of warning is set.
Wherein, the toxicant refers to that the meeting being present in water body to be measured inhibits the substance of the growth of anode microorganism,
Such as the organic solvents such as heavy metal ion, pesticide, formaldehyde.
Further, present inventor is by largely studying and testing discovery, under the conditions of on-the-spot test, due to water
Matter has slight fluctuations, therefore background signal also has certain fluctuation.It therefore, may be because if the setting of early warning threshold values is too low
For water quality slight fluctuations generate false positive wrong report, on the other hand, excessively high threshold value of warning will affect early warning sensitivity and and
Shi Xing.Consider from above-mentioned angle, 5% or more of the upper electric signal that early warning threshold values is set as extracting by the application, 80% or less.
According to the present invention it is possible to which the water quality monitoring information to " water pollution " is further classified, for example, working as early warning threshold
When value is set as the 5-20% of the upper electric signal extracted, the water quality monitoring information of " severe water pollution " is issued；When early warning threshold
When value is set as 20-50% (without endpoint) of the upper electric signal extracted, the water quality monitoring letter of " moderate water pollution " is issued
Breath；When threshold value of warning is set as the 50-80% of the upper electric signal extracted, the water quality monitoring letter of " slight water pollution " is issued
Breath.
In another preferred embodiment of the invention, blank is additionally provided on the wireless data transfer module
Anode interface；
The cathode of one external constant voltage is connect with the blank anode interface, the external constant voltage anode with it is described
Cathode interface connection, to form blank channel.
According to the present invention, external constant voltage can be the common voltage of any this field, due to microbiological fuel cell
The output voltage of sensor is 0.1-0.8V, therefore by external constant voltage it is also preferred that being set as 0.1-0.8V.
It is 0 by the blank electric signal that the blank channel acquires in another preferred embodiment of the invention
When, the data processing includes directly generating the water quality monitoring information of " equipment fault ".
According to the present invention, when monitoring system occurrence of equipment failure, such as there is object in the interface of wireless data transfer module
Reason contact loosening etc., will lead to collected real-time tele-communication number and drops suddenly to 0, if issuing the alarm of " water pollution " at this time,
It cannot reflect true water quality information.To avoid the problem that interfering water quality monitoring information due to equipment itself, the application
Blank channel can also be set.
When collected real-time tele-communication number be 0 and blank channel generate electric signal also 0 when, issue " equipment fault " water
Quality supervision measurement information, operator can check equipment according to the information, to the normal work of Restoration monitoring system.
According to the present invention, it is used in this application be China Mobile base station, by GPRS network to Cloud Server transmit electricity
Signal provides the GPRS network based on the Internet of Things card of Internet of Things private network using China Mobile.
One aspect of the present invention provides a kind of side that water quality monitoring is carried out using mentioned microorganism electrochemistry water quality monitoring system
Method, comprising:
In the cell phone client, threshold value of warning is set,
It is passed through water body to be measured to the anode water inlet line of the microbiological fuel cell sensor, to generate electric signal；
The electric signal passes sequentially through the wireless data transfer module, the base station and the Cloud Server, transmission
The extremely cell phone client,
Data processing is carried out by the cell phone client, generates water quality monitoring information.
In another preferred embodiment of the invention, by the way that water body to be measured is switched to performance recovery water body, from
And the performance of the biological anode of the microbiological fuel cell sensor is restored, it is preferable that the performance recovery water body
For the mixed water body for being added to phosphate buffer and sodium acetate solution in water body to be measured.
According to the present invention, the mixed water body of phosphorus phosphate buffer and sodium acetate solution can significantly increase Microbial fuel
The conductivity of biological anode water body locating for convalescence of battery sensor is conducive to reduce ohmic internal resistance, promotes microbial metabolism
The export of electronics in the process.In addition, phosphate buffer can be improved the pH buffer capacity of solution, and the addition of sodium acetate solution
The organic matter of higher concentration is provided as electron donor.The use of performance recovery water body is conducive to restore the electrification of biological anode
Activity is learned, the Monitoring Performance stability and service life of microbiological fuel cell sensor are improved.
According to the present invention, in performance recovery water body, the concentration of phosphate buffer is 10-50mM, sodium acetate solution it is dense
Degree is 10-30mM.
According to the present invention, water body to be measured for example can be sanitary sewage.
Monitoring method of the invention can be applied to the monitoring of practical water body, and being capable of 10 minutes after water body is contaminated
Inside receive the water quality monitoring information of " water pollution ".Thus be conducive to timely take measures, prevent water quality from further deteriorating,
The biological anode of microbiological fuel cell sensor can be avoided by irreversible destruction.In addition, through the invention
Performance recovery water body restores the performance of the biological anode of microbiological fuel cell sensor, can make to be contaminated micro-
Biological fuel cell sensor is restored to uncontaminated preceding monitoring state.
Detailed description of the invention
Fig. 1 shows the schematic diagrames of the water quality monitoring system of the embodiment of the present invention 1.
Fig. 2 indicates the structural schematic diagram of the microbiological fuel cell sensor of the embodiment of the present invention 1.
Fig. 3 indicates that the formaldehyde for carrying out the embodiment of the present invention 3 is poisoned when testing, and exports the situation of change signal of electric signal
Figure.
Fig. 4 indicates that the formaldehyde for carrying out the embodiment of the present invention 3 is poisoned when testing, the water quality monitoring letter that cell phone client receives
Breath.
When Fig. 5 indicates to carry out the performance recovery experiment of the embodiment of the present invention 4, the situation of change signal of electric signal is exported
Figure.
Fig. 6 indicates to export the situation of change of electric signal when the secondary formaldehyde for carrying out the embodiment of the present invention 6 is poisoned and tested
Schematic diagram.
Fig. 7 indicates that the secondary formaldehyde for carrying out the embodiment of the present invention 6 is poisoned when testing, the water quality prison that cell phone client receives
Measurement information.
Appended drawing reference: 1- microbiological fuel cell sensor；2- cloud management service system；21- wireless data transfer module；
The base station 22-；23- Cloud Server；24- cell phone client；11- anode water inlet line；12- anode outlet conduit；The anode chamber 13-；
14- biology anode；15- amberplex；16- cathode；17- cathode chamber；18- electric signal recording device.
Specific embodiment
The present invention is described in detail by the following examples, but protection scope of the present invention is not limited to down state
It is bright.
Embodiment 1
In the present embodiment, combined with Figure 1 and Figure 2, to the water quality monitoring system in the specific embodiment of the present invention
It is illustrated.
Water quality monitoring system as shown in Figure 1 comprising: microbiological fuel cell sensor and cloud management service system
System, wherein
Microbiological fuel cell sensor is used to generate the electric signal of characterization water quality, as shown in Fig. 2, comprising:
Anode chamber is communicated with anode water inlet line and anode outlet conduit in the anode chamber；
It is set to the biological anode of the anode chamber；
Cathode chamber relative to anode chamber setting；
It is set to the cathode of the cathode chamber；
The amberplex being set between the anode chamber and the cathode chamber；And
It is connected to the electric signal recording device of the biological anode and the cathode.
There are two microbiological fuel cell sensors in the water quality monitoring system of the present embodiment, are respectively designated as No. 1 micro- life
Object fuel cell sensor and No. 2 microbiological fuel cell sensors.
Cloud management service system includes: wireless data transfer module, base station, Cloud Server and cell phone client, in which:
2 anode interfaces and 1 cathode interface are provided on wireless data transfer module, wherein two Microbial fuels
The close cathode side of the electric signal recording device of battery sensor by conducting wire with connect respectively with 2 anode interfaces, two
The close anode side of the electric signal recording device of microbiological fuel cell sensor is connected with 1 cathode interface by conducting wire
It connects, to form 2 channels.It is electrically connected by channel and microbiological fuel cell sensor, acquires electric signal.
Include built-in analog-digital chip on wireless data transfer module, and is configured with DC power supply and antenna.It is logical
Base station can will be emitted to from the collected electric signal of microbiological fuel cell sensor through antenna by crossing the analog-digital chip.Its
In, the voltage of DC power supply is 12V, electric current 2A.
Base station is that radio station is believed in the transceiving that China Mobile Communications Corporation sets up, and is used for final electric signal transmission
To Cloud Server.
Cell phone client extracts electric signal from Cloud Server, and carries out data processing, generates water quality monitoring information.
Embodiment 2
In the present embodiment, the preparation method of the microbiological fuel cell sensor in embodiment 1 is illustrated.
Microbiological fuel cell sensor precast body is provided, the microbiological fuel cell sensor precast body includes: sun
Pole room is communicated with anode water inlet line and anode outlet conduit in the anode chamber；It is set to the anode material of the anode chamber
Material；Cathode chamber relative to anode chamber setting；It is set to the cathode of the cathode chamber；It is set to the anode chamber and described
Amberplex between cathode chamber；And the electric signal recording device of the connection anode material and the cathode.It uses
Anode material and cathode are the carbon felt of 3mm thickness.
Anolyte is provided and (contains 0.82g NaAc, 0.125g NH in the deionized water of every 1000mL4Cl, 0.13g KCl,
0.332g NaH2PO4·2H2O, 1.032g Na2HPO4·12H2O, 12.5ml minor metallic element solution (composition is shown in Table 1) with
And the mixed liquor of 5ml vitamin solution (composition is shown in Table 2)), inoculation liquid (operation half a year and the MFC anode mixture liquid that normally produces electricity)
(contain 16.64g K in the deionized water of every 1000mL with catholyte3[Fe(CN)6], 4.4g KH2PO4With 3.4g K2HPO4·
3H2O).Inoculation liquid is added in anolyte, anode mixture liquid is obtained.
By bundling the method for drawing electric material of cyclic annular titanium sheet, make the anode material of microbiological fuel cell sensor precast body
Material and cathode are electrically connected, and above-mentioned anode mixture liquid is passed through anode water inlet line with the flow velocity of 6mL/min, are flowed through with penetrating
The anode material makes to grow anerobe film on the anode material by microbial acclimation, and electric current to be output is stablized
When illustrate that microbial film domestication is completed to get to the microbiological fuel cell sensor in embodiment 1.
Table 1
Table 2
Embodiment 3
In the present embodiment, in conjunction with Fig. 3 and Fig. 4, to the above-mentioned water quality monitoring system of application carry out the process of water quality monitoring into
Row explanation, uses sanitary sewage as water body to be measured, specifically:
It is the 80% of the upper electric signal extracted in cell phone client setting threshold value of warning；
Water to be measured is passed through to the anode water inlet line of microbiological fuel cell sensor when the December in 2017 of 17:00 on the 21st
Body, to generate electric signal；
Electric signal passes sequentially through wireless data transfer module, base station and Cloud Server, is transmitted to cell phone client；
Data processing is carried out by the cell phone client, obtained electrical signal data is as shown in figure 3, two microorganism combustions
Expect that the voltage signal of battery sensor is stable in 178mV and 183mV respectively；
17:30-17:40 on December 21 in 2017 continues to add to the anode water inlet line of microbiological fuel cell sensor
0.1% formaldehyde；
The electric signal of No. 1 microbiological fuel cell sensor decays to 134mV when the December in 2017 of 17:34 on the 21st, reaches
Threshold value of warning (a upper electric signal for extraction is 178mV, threshold value of warning 142.4mV), cell phone client receives " water quality dirt
The water quality monitoring information of dye ", and sound an alarm (as shown in Figure 4)；
The electric signal of No. 2 microbiological fuel cell sensors decays to 141mV when the December in 2017 of 17:39 on the 21st, reaches
Threshold value of warning (a upper electric signal for extraction is 183mV, threshold value of warning 146.4mV), cell phone client receives " water quality dirt
The water quality monitoring information of dye ", and sound an alarm (as shown in Figure 4).
It should be noted that in Fig. 4, No. 1 microbiological fuel cell sensor and No. 2 microbiological fuel cell sensors
Threshold value of warning be closer to, therefore be schematically represented as a dotted line.
Embodiment 4
In the present embodiment, in conjunction with Fig. 5 to the property of the biological anode of No. 2 microbiological fuel cell sensors in embodiment 2
The method that can be carried out recovery is illustrated.
Firstly, voltage signal continues to drop to 30mV from 141mV persistently poisoning after ten minutes.It is to be measured being continually fed into
After water body 24 hours, voltage signal restores from 30mV to 50mV (see Fig. 5), and recovery effects are undesirable.
Then, the mixed water body of the phosphate buffer of 50mM and the sodium acetate solution of 20mM is added in water body to be measured.
Its restoration result is as shown in Figure 5.The result shows that voltage signal restored from 50mV to 120mV (recovery policy by about 24 hours
Service stage 1), using 24 hours, voltage signal restored from 120mV to 200mV (recovery policy service stage 2), restored effect
Fruit is preferable.
Embodiment 5
It poisons and restores for the first time:
No. 1 microbiological fuel cell sensor of reference implementation example 3 complete 10 minutes formaldehyde poison (voltage signal from
178mv continues after dropping to 103), and the phosphate buffer of 50mM and the sodium acetate solution of 20mM are added in water body to be measured
Mixed water body carries out performance recovery processing to No. 1 microbiological fuel cell sensor, make voltage signal from 103mV restore to
170mV。
It poisons and restores for the second time:
Continue to be passed through water body to be measured, the voltage signal of No. 1 microbiological fuel cell is stablized in 161mV, for the second time to be measured
0.1% formaldehyde is added in water body, and continues 10 minutes.When 6 minutes after the operation that starts to poison, No. 1 microbiological fuel cell
The electric signal of sensor decays to 119mV, reaches threshold value of warning, and cell phone client receives the water quality monitoring letter of " water pollution "
Breath.After this, the voltage signal of No. 1 microbiological fuel cell sensor continues to drop to 73mV.It is added in water body to be measured
The mixed water body of the sodium acetate solution of the phosphate buffer and 20mM of 50mM carries out No. 1 microbiological fuel cell sensor
Performance recovery processing, restores voltage signal to 148mV from 73mV.
Third time is poisoned and is restored:
Continue to be passed through water body to be measured, the voltage signal of No. 1 microbiological fuel cell is stablized in 142mV, for the third time to be measured
0.1% formaldehyde is added in water body, and continues 10 minutes.When 7 minutes after the operation that starts to poison, No. 1 microbiological fuel cell
The electric signal of sensor decays to 103mV, reaches threshold value of warning, and cell phone client receives the water quality monitoring letter of " water pollution "
Breath.After this, the voltage signal of No. 1 microbiological fuel cell sensor continues to drop to 60mV.It is added in water body to be measured
The mixed water body of the sodium acetate solution of the phosphate buffer and 20mM of 50mM carries out No. 1 microbiological fuel cell sensor
Performance recovery processing, restores voltage signal to 110mV from 60mV.
As it can be seen that, although voltage signal is decayed, being remained at 10 minutes poisoned three times with after performance recovery
Within issue water quality monitoring information, realize the purpose of water quality monitoring.
Embodiment 6
After the formaldehyde that the water quality monitoring system of embodiment 3 has carried out 10 minutes is poisoned, continue to be passed through water body to be measured, 1
After month, the formaldehyde that the operation referring again to embodiment 3 carries out 10 minutes is poisoned.As a result, it has been found that No. 1 microbiological fuel cell sensing
The electric signal of device and No. 2 microbiological fuel cell sensors is decayed, and after 13 minutes, receives water in cell phone client
Quality supervision measurement information (as shown in Figure 6).Stopping into water body to be measured after Add formaldehyde, voltage signal no longer declines within half an hour,
But there is no recovery trend；Voltage signal is slightly risen after half an hour, but recovery effects are unsatisfactory (as shown in Figure 7).
As it can be seen that restoring without using performance recovery water body of the invention to microbiological fuel cell sensor, also can
Water quality monitoring and early warning are carried out, but pre-warning time has delay, restores time-consuming also longer.
It should be noted that embodiment described above is for explaining only the invention, any limit is not constituted to the present invention
System.By referring to exemplary embodiments, invention has been described, it should be appreciated that word used in it be it is descriptive and
Explanatory vocabulary, without being restrictive vocabulary.The present invention can be made within the scope of the claims by regulation
Modification, and the present invention is revised in without departing substantially from scope and spirit of the present invention.Although the present invention described in it relates to
And specific method, material and embodiment, it is not intended that the present invention is limited to particular case disclosed in it, on the contrary, this hair
It is bright to extend to other all methods and applications with the same function.
Claims (10)
1. a kind of microorganism electrochemical water quality monitoring system based on Internet of Things control, comprising:
Microbiological fuel cell sensor, for generating the electric signal of characterization water quality；And
Cloud management service system；Wherein,
The cloud management service system includes: wireless data transfer module, base station, Cloud Server and cell phone client,
The wireless data transfer module is electrically connected by channel and the microbiological fuel cell sensor, acquires institute
State electric signal；
The base station is by the final electric signal transmission to the Cloud Server；
The cell phone client extracts the electric signal from the Cloud Server, and carries out data processing, generates water quality monitoring letter
Breath.
2. microorganism electrochemical water quality monitoring system according to claim 1, which is characterized in that the Microbial fuel electricity
Pond sensor includes:
Anode chamber is communicated with anode water inlet line and anode outlet conduit in the anode chamber；
It is set to the biological anode of the anode chamber；
Cathode chamber relative to anode chamber setting；
It is set to the cathode of the cathode chamber；
The amberplex being set between the anode chamber and the cathode chamber；And
It is connected to the electric signal recording device of the biological anode and the cathode.
3. microorganism electrochemical water quality monitoring system according to claim 1 or 2, which is characterized in that in the no line number
According to being provided with anode interface and cathode interface in transmission module,
The close cathode side of the electric signal recording device is connect by conducting wire with the anode interface, the electric signal record
The close anode side of device is connect by conducting wire with the cathode interface, to form the channel.
4. microorganism electrochemical water quality monitoring system according to claim 3, which is characterized in that the microorganism electrochemical
Water quality monitoring system is provided at least two microbiological fuel cell sensors, and correspondingly in the wireless data transmission
At least two anode interfaces and cathode interface are provided in module,
The close cathode side of the electric signal recording device of at least two microbiological fuel cells sensor passes through conducting wire point
It is not connect at least two anode interface independently, the close anode side of the electric signal recording device is equal by conducting wire
Independently it is connect with the cathode interface, to form at least two channels,
By at least two electric signals of at least two channel acquisitions, data processing is carried out by cell phone client respectively.
5. microorganism electrochemical water quality monitoring system according to claim 4, which is characterized in that the data processing includes
The electric signal is compared with threshold value of warning, when the electric signal reaches threshold value of warning, generates the water of " water pollution "
Quality supervision measurement information, and sound an alarm.
6. microorganism electrochemical water quality monitoring system according to any one of claims 1-5, which is characterized in that described pre-
Alert threshold value is the 5-80%, more preferably 10-50% of the upper electric signal extracted.
7. microorganism electrochemical water quality monitoring system according to claim 6, which is characterized in that passed in the wireless data
Blank anode interface is additionally provided in defeated module；
The cathode of one external constant voltage is connect with the blank anode interface, anode and the cathode of the external constant voltage
Interface connection, to form blank channel.
8. microorganism electrochemical water quality monitoring system described in any one of -7 according to claim 1, which is characterized in that pass through institute
When the blank electric signal for stating blank channel acquisition is 0, the data processing includes directly generating the water quality monitoring of " equipment fault "
Information.
9. a kind of carry out water quality monitoring using the microorganism electrochemical water quality monitoring system of any of claims 1-8
Method, comprising:
In the cell phone client, threshold value of warning is set,
It is passed through water body to be measured to the anode water inlet line of the microbiological fuel cell sensor, to generate electric signal；
The electric signal passes sequentially through the wireless data transfer module, the base station and the Cloud Server, is transmitted to institute
State cell phone client；
Data processing is carried out by the cell phone client, generates water quality monitoring information.
10. the method for water quality monitoring according to claim 9, which is characterized in that further include by switching water body to be measured
For performance recovery water body, to restore to the performance of the biological anode of the microbiological fuel cell sensor, it is preferable that
The performance recovery water body is the mixed water body that phosphate buffer and sodium acetate solution are added in water body to be measured.
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