CN112326914A - Biological toxicity early warning and monitoring system and method thereof - Google Patents
Biological toxicity early warning and monitoring system and method thereof Download PDFInfo
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- CN112326914A CN112326914A CN202011239837.3A CN202011239837A CN112326914A CN 112326914 A CN112326914 A CN 112326914A CN 202011239837 A CN202011239837 A CN 202011239837A CN 112326914 A CN112326914 A CN 112326914A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 231100000419 toxicity Toxicity 0.000 title claims abstract description 20
- 230000001988 toxicity Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 90
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 244000005700 microbiome Species 0.000 claims description 30
- 238000010248 power generation Methods 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 8
- 238000013500 data storage Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 239000010954 inorganic particle Substances 0.000 claims description 5
- 230000000813 microbial effect Effects 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims 2
- 238000004065 wastewater treatment Methods 0.000 claims 2
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 238000009614 chemical analysis method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 238000004940 physical analysis method Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- 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
- G01N33/186—Water using one or more living organisms, e.g. a fish
- G01N33/1866—Water using one or more living organisms, e.g. a fish using microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/36—Biological material, e.g. enzymes or ATP
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Abstract
The invention discloses a biological toxicity early warning monitoring system and a method thereof, belonging to the field of sewage treatment monitoring, and comprising a pretreatment unit, a detection unit and a control unit; the pretreatment unit is used for carrying out rough filtration on the incoming sewage; the detection unit is used for detecting whether the sewage treated by the pretreatment unit has biotoxicity; the control unit controls the opening and closing of the valve through collecting and displaying relevant data in the detection unit, and further controls whether sewage enters the sewage treatment follow-up unit. The invention is mainly applied to the front section of sewage treatment and has high detection sensitivity on high biotoxicity sewage.
Description
Technical Field
The invention relates to the field of sewage treatment and detection, in particular to a biotoxicity early warning and monitoring system and a biotoxicity early warning and monitoring method.
Background
At present, the water consumption for industry and living is large, and the water pollution problem restricts the development of social economy. The sewage treatment technology has been transiting from the traditional high energy consumption and resource waste type of simply removing pollutants to the sewage resource treatment, and various novel water treatment technologies are developed. The sewage treatment process mainly represented by the activated sludge process is widely applied, and along with the gradual improvement of the discharge standard, the sewage treatment process has high requirements on the stable operation and the water quality reaching the standard of the sewage treatment plant. The monitoring of the quality of the inlet water of the sewage treatment plant generally only comprises conventional indexes, such as conventional five items, COD, ammonia nitrogen, total phosphorus and the like. However, the monitoring of the toxic and harmful substances in the inlet water is still in an exploration stage, and particularly the toxic and harmful substances which affect the performance of activated sludge of a sewage treatment plant and cause production accidents are one of the key points that the stable operation of the sewage treatment plant and the water quality reaching the standard need to pay attention and take good precautions.
The water quality early warning system can evaluate the toxicity of the pollution accident in advance when the pollution accident occurs, preliminarily judge the type of the main pollutants of the pollution accident, and quickly take emergency measures, so that the stable operation of a sewage treatment plant is guaranteed. The traditional water quality monitoring means mainly depend on a physical and chemical analysis method, and the physical and chemical analysis method which depends on complex large-scale instruments and equipment is not suitable for the development of an online water quality early warning system. For example, the measured concentration of the contaminant is the total concentration in the water body, and cannot reflect the actual exposure concentration of living organisms and the biological reaction thereof, and a complicated sample pretreatment process and professional operation are required.
The biological early warning technology realizes early warning by monitoring biological index changes of tested organisms on different levels through a biosensor to represent water quality changes. When toxic substances flow in, the activity of the electricity-generating microorganisms is reduced, thereby causing the reduction of electricity generation; when the nutritional substance flows in, the activity of the electrogenesis microorganisms is increased, so that the electrogenesis amount is increased, and the comprehensive toxicity level of the sample to be tested is expressed by continuously testing the toxicity degree of the sample to be tested. Automatically controlling the whole process of leading the water sample into the result calculation, and realizing the on-line monitoring of the comprehensive toxicity of the water quality.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a biotoxicity early warning and monitoring system and a biotoxicity early warning and monitoring method, wherein the pretreatment unit is used for pretreating the entering sewage to remove coarse-grained impurities of the sewage, then the sewage enters the detection unit, whether the biotoxicity exists in the sewage or not has certain influence on the power generation microbial power generation amount in the detection unit, and whether the biotoxicity exists in the sewage or not is detected according to the difference of the power generation amount; the invention is mainly applied to the front stage of sewage treatment and has high sensitivity for detecting high biotoxicity sewage.
The present invention achieves the above-described object by the following technical means.
A biological toxicity early warning monitoring system comprises a preprocessing unit, a detection unit and a control unit; the pretreatment unit is used for carrying out rough filtration on the incoming sewage; the detection unit is used for detecting whether the sewage treated by the pretreatment unit has biotoxicity; the control unit controls the opening and closing of the valve through collecting and displaying relevant data in the detection unit, and further controls whether sewage enters the sewage treatment system or not.
Furthermore, the pretreatment unit sequentially comprises a grid and a sand settling area; wherein, the grids are used for intercepting larger floating objects and impurities in the sewage; the sand settling zone is used to remove the denser inorganic particles.
Furthermore, in the grid room, sewage passes through the coarse grid, the fine grid and supporting facilities in sequence.
Furthermore, the detection unit comprises a power generation microorganism carrier, and the power generation microorganism carrier is a device for converting chemical energy into electric energy.
Furthermore, the control unit comprises a data processing module, a display recording module, a data storage module and an execution module; the data processing module sets different limit values according to different water quality backgrounds and stores the different limit values into the data storage module; the display and record module is connected with an ammeter or a voltmeter and is used for displaying the power generation condition of the microorganism carrier in the current detection unit; the execution module is used for controlling the opening and closing of a valve on a water inlet pipeline of the detection unit.
Further, the voltage or current generated by the microorganism carrier is relatively small, and the voltage or current can be conveniently measured by adding a voltage amplifier or a current amplifier to amplify the voltage or current.
Furthermore, the power generation microorganism carrier is an electroactive organism, and the electroactive organism is made into a biotoxicity early warning chip in an immobilized microorganism mode.
Furthermore, the biotoxicity early warning chip can be produced in a standardized mode, and after the alarm is given, the biotoxicity early warning chip can be directly replaced by a new chip.
The detection method of the biological toxicity early warning monitoring system comprises the following steps: the pretreatment unit is used for carrying out rough filtration on the entering sewage; carrying out biotoxicity detection on the pretreated sewage by using a microorganism carrier in the detection unit; the control unit is used for early warning and controlling the closing of a valve of a water inlet pipe on the sewage inlet treatment system.
Further, the sewage entering the biological toxicity early warning and monitoring system is a part of the sewage in the sewage inlet treatment system, and when the biological toxicity early warning and monitoring system detects biological toxicity, a water inlet valve of the sewage treatment system is closed; specifically, the method comprises the following steps: the sewage entering the pretreatment unit is a branch separated from the sewage main line, and after the detection unit detects the biotoxicity, the control system controls the closing of a water inlet valve on the sewage main line.
Has the advantages that:
1. the method comprises the following steps of pretreating the entering sewage through a pretreatment unit to remove coarse-grained impurities of the sewage, then enabling the sewage to enter a detection unit, detecting whether biotoxicity exists in the sewage to have certain influence on the power generation amount of power generation microorganisms in the detection unit, and detecting whether the sewage contains the biotoxicity according to the difference of the power generation amount; the invention is mainly applied to the front stage of sewage treatment and has high sensitivity for detecting high biotoxicity sewage.
2. In the pretreatment unit, sewage sequentially passes through the coarse grating, the fine grating and supporting facilities among the gratings, so that the effect of intercepting larger floaters and impurities in the sewage is achieved, inorganic particles with larger density are removed in a sand setting area, the floaters, the impurities and the inorganic particles are removed after the sewage is pretreated, the quality of the sewage entering the detection unit can be improved, and the convenience and the rapidness of biotoxicity detection are improved.
3. The biotoxicity is detected by the power generation microbial battery in the detection unit, and the reading from the ammeter or the voltmeter reflects the biotoxicity, so that the detection unit is convenient and intuitive and has good operability and flexibility.
4. The data processing module in the control unit sets different limit values according to different water quality backgrounds and stores the different limit values in the data storage module; the display and record module is connected with an ammeter or a voltmeter and is used for displaying the power generation condition of the microorganism carrier in the current detection unit; the execution module is used for controlling the opening and closing of a valve on a water inlet pipeline of the detection unit; the detection accuracy and record completeness of the biotoxicity are ensured through the division and cooperation of the modules, and the execution module controls the opening and closing of the valve on the water inlet pipeline of the detection unit, so that once the biotoxicity is detected, the sewage treatment system can be fed back and protected.
5. The power generation microorganism carrier is an electroactive organism, the electroactive organism is made into a biotoxicity early warning chip in an immobilized microorganism mode, and the biotoxicity early warning chip can be produced and replaced in a standardized mode, so that the production cost is reduced, and the convenience and operability of the biotoxicity early warning chip for detecting biotoxicity are improved.
6. By adding a voltage amplifier or a current amplifier, the current or the voltage of the microbial fuel cell can be conveniently and accurately measured.
Drawings
FIG. 1 is a schematic diagram of a bio-toxicity warning and monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the biotoxicity monitoring method of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following first describes in detail embodiments according to the present invention with reference to the accompanying drawings
The monitoring system utilizes the microbial fuel cell to detect the biotoxicity, and the specific principle is as follows: the organic matter in the water is oxidized and decomposed by the electricity generating microorganism, and the generated electrons are transferred along the electrode to generate current. When the toxic substances flow in, the activity of the electrogenesis microorganisms is reduced, so that the electricity generation quantity is reduced, when the nutritional substances flow in, the activity of the electrogenesis microorganisms is increased, so that the electricity generation quantity is increased, and the comprehensive toxicity level of the sample to be tested is expressed by testing the toxicity degree of the sample to be tested.
A biological toxicity early warning monitoring system comprises a preprocessing unit, a detection unit and a control unit; the pretreatment unit is used for carrying out rough filtration on the incoming sewage; the detection unit is used for detecting whether the sewage treated by the pretreatment unit has biotoxicity; the control unit controls the opening and closing of the valve through collecting and displaying relevant data in the detection unit, and further controls whether sewage enters the sewage treatment system or not.
The purpose of arranging the preprocessing unit in front of the detection unit is as follows: impurity that influences follow-up detecting element effect in the degritting removal sewage through slagging-off between the grid and sand setting district's degritting for detecting element's sensitivity and accuracy are higher.
The pretreatment unit sequentially comprises a grid and a sand setting area; wherein, the grids are used for intercepting larger floating objects and impurities in the sewage; the sand settling zone is used for removing inorganic particles with higher density; in the grid room, sewage passes through the coarse grid, the fine grid and supporting facilities in sequence.
The detection unit comprises a power generation microorganism carrier, and the power generation microorganism carrier is a device for converting chemical energy into electric energy.
The control unit comprises a data processing module, a display recording module, a data storage module and an execution module; the data processing module sets different limit values according to different water quality backgrounds and stores the different limit values into the data storage module; the display and record module is connected with an ammeter or a voltmeter and is used for displaying the power generation condition of the microorganism carrier in the current detection unit; the execution module is used for controlling the opening and closing of a valve on a water inlet pipeline of the detection unit.
The control unit of the invention satisfies the following conditions:
the water quality monitoring system has an early warning function, can set limit values according to different water quality backgrounds, and has abnormal information recording and feedback functions, such as: insufficient water sample, insufficient nutrient solution and the like;
the method has the function of recording the running state of an instrument, such as the steps of case temperature, early warning and alarm recording, instrument detection and the like;
after the instrument is powered off accidentally and is powered on again, the system can be automatically reset to a state of restarting measurement;
the data processing system has the functions of collecting, storing, processing, displaying, outputting and the like of data and operation logs, and can store original data and operation logs for at least 12 months.
According to the indication of the ammeter or the voltmeter, the biotoxicity can be obtained, namely, the percentage of the electricity generation quantity of the microorganisms is reduced or improved after the sewage to be detected enters the detection unit under the specified condition relative to that before the sewage is introduced.
Generally, the voltage or current generated by the microorganism carrier is relatively small, and the voltage or current can be conveniently measured by adding a voltage amplifier or a current amplifier to amplify the voltage or current.
The power generation microorganism carrier is an electroactive organism, and the electroactive organism is made into a biotoxicity early warning chip in an immobilized microorganism mode; the biotoxicity early warning chip can be produced and replaced in a standardized way.
Referring to fig. 2, it can be seen from fig. 2 that sewage in a sewage treatment system in a sewage plant is divided into a plurality of branches, a biotoxicity early warning monitoring system is installed in one of the branches to monitor biotoxicity of the sewage in the branch, and when biotoxicity is monitored, a valve on a main line of the sewage system is automatically closed under the control of a control system, so that the sewage does not enter the sewage branch.
The detection method of the biological toxicity early warning monitoring system comprises the following steps: the pretreatment unit is used for carrying out rough filtration on the entering sewage; carrying out biotoxicity detection on the pretreated sewage by using a microorganism carrier in the detection unit; the control unit is used for early warning and controlling the closing of a valve of a water inlet pipe on the sewage inlet treatment system.
Wherein, the sewage entering the biological toxicity early warning monitoring system is a part of the sewage in the sewage inlet treatment system, and when the biological toxicity early warning monitoring system detects the biological toxicity, the water inlet valve of the sewage treatment system is closed; specifically, the method comprises the following steps: the sewage entering the pretreatment unit is a branch separated from the sewage main line, and after the detection unit detects the biotoxicity, the control system controls the closing of a water inlet valve on the sewage main line.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. A biological toxicity early warning monitoring system is characterized by comprising a preprocessing unit, a detection unit and a control unit; the pretreatment unit is used for carrying out rough filtration on the incoming sewage; the detection unit is used for detecting whether the sewage treated by the pretreatment unit has biotoxicity; the control unit controls the opening and closing of the valve through collecting and displaying relevant data in the detection unit, and further controls whether sewage enters the sewage treatment system or not.
2. The biotoxicity early warning and monitoring system according to claim 1, wherein the pretreatment unit comprises a grid room and a sand setting area in sequence; wherein, the grids are used for intercepting larger floating objects and impurities in the sewage; the sand settling zone is used to remove the denser inorganic particles.
3. The biotoxicity early warning and monitoring system as claimed in claim 2, wherein in the grid room, sewage passes through the coarse grid, the fine grid and supporting facilities in sequence.
4. The system of claim 1, wherein the detection unit comprises a power generating microorganism carrier, and the power generating microorganism carrier is a device for converting chemical energy into electric energy.
5. The system of claim 1, wherein the control unit comprises a data processing module, a display and record module, a data storage module and an execution module; the data processing module sets different limit values according to different water quality backgrounds and stores the different limit values into the data storage module; the display and record module is connected with an ammeter or a voltmeter and is used for displaying the power generation condition of the microorganism carrier in the current detection unit; the execution module is used for controlling the opening and closing of a valve on a water inlet pipeline of the detection unit.
6. The biotoxicity warning and monitoring system as claimed in claim 5, wherein the voltage or current generated by the microbial carrier is relatively small, and can be conveniently detected by adding a voltage amplifier or a current amplifier to amplify the voltage or current.
7. The biotoxicity early warning and monitoring system according to claim 4, wherein the power generation microorganism carrier is an electroactive organism, and the electroactive organism is made into a biotoxicity early warning chip in an immobilized microorganism mode.
8. The biotoxicity warning and monitoring system as claimed in claim 7, wherein the biotoxicity warning chip can be produced in a standardized manner.
9. The method for detecting a biotoxicity warning and monitoring system according to any one of claims 1 to 8, wherein the method comprises the following steps:
the pretreatment unit is used for carrying out rough filtration on the entering sewage;
carrying out biotoxicity detection on the pretreated sewage by using a microorganism carrier in the detection unit;
the control unit is used for early warning and controlling the closing of a valve of a water inlet pipe on the sewage inlet treatment system.
10. The method of claim 9, wherein the wastewater entering the biotoxicity pre-warning monitoring system is a portion of wastewater in the wastewater treatment system, and when the biotoxicity pre-warning monitoring system detects biotoxicity, the wastewater treatment system inlet valve is closed; specifically, the method comprises the following steps: the sewage entering the pretreatment unit is a branch separated from the sewage main line, and after the detection unit detects the biotoxicity, the control system controls the closing of a water inlet valve on the sewage main line.
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| CN113003629A (en) * | 2021-03-08 | 2021-06-22 | 湖南金龙智造科技股份有限公司 | Intelligent sewage treatment device, method and system |
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