CN116854300B - Sewage treatment system with activated carbon adsorption filtration function - Google Patents
Sewage treatment system with activated carbon adsorption filtration function Download PDFInfo
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- CN116854300B CN116854300B CN202310903623.9A CN202310903623A CN116854300B CN 116854300 B CN116854300 B CN 116854300B CN 202310903623 A CN202310903623 A CN 202310903623A CN 116854300 B CN116854300 B CN 116854300B
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- 239000010865 sewage Substances 0.000 title claims abstract description 142
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000001914 filtration Methods 0.000 title claims abstract description 40
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 24
- 239000003814 drug Substances 0.000 claims abstract description 131
- 238000005273 aeration Methods 0.000 claims abstract description 83
- 230000001502 supplementing effect Effects 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000001556 precipitation Methods 0.000 claims abstract description 25
- 238000004062 sedimentation Methods 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 12
- 239000008213 purified water Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000003344 environmental pollutant Substances 0.000 claims description 104
- 231100000719 pollutant Toxicity 0.000 claims description 104
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- 229940079593 drug Drugs 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
A sewage treatment system for activated carbon adsorption filtration, comprising: an aeration unit for aerating the sewage by using the aeration device; the sedimentation unit is used for removing suspended particles from the sewage to obtain a purified water body and comprises a containing space for bearing the sewage and an image acquisition unit; a filter unit for filtering the purified water body passing through the precipitation unit to obtain a standard water body; the filter unit comprises active carbon particles arranged at the water outlet of the precipitation unit; the analysis unit for analyzing the photographed sewage image determines the position and the medicine supplementing amount of the sewage in the precipitation unit, determines the control unit for the medicine supplementing position and the medicine supplementing amount according to the analysis unit, and sends a dosing command to the purification device. Through regional image acquisition of the cells and cell medicine supplementing, excessive medicine adding is prevented; through the bubble condition that produces when the aeration, in time adjust the parameter that the bubble produced, improve the efficiency that the bubble brought out the aquatic suspended solid.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system with activated carbon adsorption filtration.
Background
In recent years, with the improvement of the living standard of people and the enhancement of environmental awareness, the domestic sewage treatment industry has entered a new development stage, and the improvement of municipal sewage plants for improving sewage treatment standards is also gradually accelerated.
The sewage treatment generally comprises the steps of aeration, air floatation, precipitation, filtration and the like, wherein the aeration refers to the process of forcedly transferring oxygen in the air into liquid, and aims to enable the sewage to obtain dissolved oxygen, so that the microorganisms in the sewage are ensured to have sufficient dissolved oxygen when decomposing organic matters, the sufficiency of chemical and physical reactions is improved, and a small amount of bicarbonate and the like in the water are removed.
The aeration tank generates a large amount of bubbles in the aeration process, which is a common problem, so that the bubbles not only affect the aeration effect, but also affect the stability of the whole treatment system, and in addition, the color and the shape of the generated bubbles have a great relationship with the components and the content of pollutants in sewage. The conventional steps of filtering, aerating, precipitating and the like still need to be realized by means of medicaments for purifying pollutants. Moreover, when the added medicament is insufficient, the purification requirement is not met; when the medicament is excessively added, the medicament is discharged along with the scum, so that the medicament is wasted, the running cost is increased, and the sludge quantity treatment cost is increased; and cannot accurately purify specific pollutant components, content and the like in the sewage.
Accordingly, the problems of the prior art are to be further improved and developed.
Disclosure of Invention
(one) object of the invention: in order to solve the problems in the prior art, the invention aims to provide a sewage treatment system with activated carbon adsorption filtration.
(II) technical scheme: in order to solve the technical problem, the present technical scheme provides a sewage treatment system for activated carbon adsorption filtration, comprising: the device comprises an aeration unit, a precipitation unit, a filtering unit, an analysis unit, a control unit and a purification device;
the aeration unit is used for aerating sewage by using an aeration device; the sedimentation unit comprises a containing space for bearing sewage and an image acquisition unit, wherein the containing space is for removing suspended particles from the sewage after aeration to obtain a purified water body, and the image acquisition unit acquires a sewage image of the sewage after sedimentation in the containing space in real time, and the sewage image is a visible light image;
the filtering unit comprises activated carbon particles arranged at the water outlet of the precipitation unit and is used for filtering the purified water body of the precipitation unit to treat standard water body;
the analysis unit analyzes according to the pixel value of the photographed sewage image in the accommodating space, and determines the position and the medicine supplementing amount of the sewage in the precipitation unit, which need medicine supplementing;
the control unit determines the position and the amount of the supplementary drug according to the analysis unit and sends an administration command to the purification device.
The activated carbon adsorption filtration sewage treatment system comprises an analysis unit, an image acquisition unit, a sedimentation unit, a storage unit and a storage unit, wherein the analysis unit divides a storage space of the sedimentation unit into a plurality of grids, and the image acquisition unit correspondingly divides acquired sewage images into grid images according to the grids divided by the storage space;
the analysis unit dynamically monitors the sub-images of different grids, and adjusts or determines the medicine supplementing quantity and the medicine supplementing position of the corresponding grids of the accommodating space according to the dynamic monitoring result.
The sewage treatment system for activated carbon adsorption filtration further comprises a storage unit, wherein the storage unit stores standard pixel values without adding purifying medicines, a pollutant standard pixel value comparison table corresponding to different pollutants in sewage, and a medicine demand information table;
the standard pixel value may be input or modified by an input unit.
The sewage treatment system for activated carbon adsorption filtration, wherein the analysis unit analyzes the photographed sewage image to determine the position where the precipitated sewage needs to be supplemented and the specific implementation steps of the supplementing amount are as follows:
step one, the analysis unit reads pixel values of each grid image in the collected sewage image and determines pollutants corresponding to grids corresponding to each grid image in the sewage image;
step two, the analysis unit determines medicine requirement information corresponding to the grid image according to the determined pollutants, wherein the medicine requirement information comprises the type and the medicine quantity of required medicines;
and thirdly, determining the medicine supplementing position by the analysis unit corresponding to the grids in the accommodating space corresponding to the grid image.
The first step includes that the analysis unit calculates difference values between pixel values of each grid image and pollutant standard pixel values corresponding to different pollutants respectively to obtain a first difference value;
when the absolute value of the first difference value is smaller than or equal to a first threshold value, the current grid image corresponds to a pollutant corresponding to the current pollutant standard pixel value;
when the absolute values of the first differences between the pixel values of the grid image and the pollutant standard pixel values corresponding to the pollutants are smaller than a first threshold value, the analysis unit selects the pollutant corresponding to the pollutant standard pixel value corresponding to the smallest first difference absolute value as the pollutant corresponding to the current grid image.
The activated carbon adsorption and filtration sewage treatment system comprises the specific steps that the analysis unit makes differences between pixel values in a current grid image and corresponding pollutant standard pixel values of corresponding pollutants to obtain pollutant standard pixel difference values, then the analysis unit searches the current pollutant standard pixel difference values in a medicine requirement information table, and reads medicine requirement information corresponding to the current pollutant standard pixel difference values.
When the medicine requirement information table does not find the current pollutant standard pixel difference value, the analysis unit makes a difference between the current pollutant standard pixel difference value and the pollutant standard pixel difference value in the medicine requirement information table to obtain a second difference value, the pollutant standard pixel difference value in the medicine requirement information table corresponding to the smallest absolute value of the second difference value is selected, the pollutant standard pixel difference value in the medicine requirement information table corresponding to the current pollutant standard pixel difference value is used as the pollutant standard pixel difference value, and the analysis unit reads medicine requirement information corresponding to the pollutant standard pixel difference value in the medicine requirement information table.
The activated carbon adsorption filtration sewage treatment system comprises an aeration unit, wherein the aeration unit further comprises an image acquisition unit, and the image acquisition unit of the aeration unit acquires a sewage image of the water body after aeration;
the analysis unit divides the accommodating space of the aeration tank into a plurality of grids, and the image acquisition unit correspondingly divides the acquired sewage image against the grids divided by the accommodating space of the aeration tank to obtain grid images;
when the analysis unit reads the pixel value of each grid image in the collected aeration tank sewage image, including the grid image with the absolute value of the pixel value difference from the set aeration overaeration pixel value smaller than the second threshold value, the analysis unit determines the fragility of the bubbles and determines the oxygen content in the dissolved air bubbles generated by the aeration device.
The activated carbon adsorption filtration sewage treatment system, wherein the analysis unit determines the fragility of bubbles formed in the aeration process according to the coverage area of the bubbles in the grid image, comprises the following specific implementation steps,
step A, an analysis unit screens grid images comprising bubbles in the grid images to form a bubble image set;
step B, an analysis unit determines the number of bubble pixel points included in a bubble image set;
step C, determining the coverage rate of the bubbles in the sewage image by an analysis unit, and giving out the fragile grade of the bubbles;
and D, the analysis unit sends the oxygen content of the dissolved air bubbles corresponding to the required dissolved air bubble frangible level to the control unit, and the control unit adjusts the oxygen content of the dissolved air bubbles generated by the aeration device.
The storage unit stores a bubble stability grade table, wherein the bubble stability grade table comprises grades corresponding to different coverage rates of bubbles in a sewage image and oxygen content of dissolved air bubbles corresponding to each grade;
the step C comprises the steps that an analysis unit calculates the total number of pixel points in the sewage image, and the coverage rate of bubbles in the sewage image is obtained according to the total number of pixel points in the sewage image and the number of first pixel points;
the analysis unit searches the coverage rate of the corresponding bubbles in the sewage image in the bubble stability class table, and outputs the oxygen content of the dissolved air bubbles required by the coverage rate of the corresponding bubbles in the sewage image.
(III) beneficial effects: the invention provides an activated carbon adsorption filtration sewage treatment system, which prevents excessive dosing through regional image acquisition of cells and cell dosing, avoids the increase of operation cost and also avoids the increase of sludge treatment cost; in addition, through the size and the state of the bubbles generated during aeration, parameters generated by the bubbles are timely adjusted, and the oxygen content in the dissolved air bubbles generated by the aeration device is adjusted, so that the efficiency of the bubbles for taking out water suspended matters is improved.
Drawings
FIG. 1 is a schematic diagram of the steps of determining the position and the dosage of the medicine to be supplemented by an analysis unit of a sewage treatment system with activated carbon adsorption filtration according to the invention;
FIG. 2 is a schematic diagram showing steps for determining the fragility of bubbles formed during aeration by an analysis unit of a sewage treatment system using activated carbon adsorption filtration according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the preferred embodiments, and more details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent that the present invention can be embodied in many other forms than described herein, and that those skilled in the art may make similar generalizations and deductions depending on the actual application without departing from the spirit of the present invention, and therefore should not be construed to limit the scope of the present invention in the context of this particular embodiment.
The drawings are schematic representations of embodiments of the invention, it being noted that the drawings are by way of example only and are not drawn to scale and should not be taken as limiting the true scope of the invention.
A sewage treatment system for activated carbon adsorption filtration, comprising: the device comprises an aeration unit, a precipitation unit, a filtering unit, an analysis unit, a control unit and a purification device. The aeration unit aerates the sewage; the precipitation unit removes suspended particles for the aerated sewage and provides a containing space, the aerated sewage is subjected to precipitation treatment to obtain a purified water body, and the containing space is convenient for image acquisition of the surface of the aerated and precipitated sewage (the purified water body) to obtain a sewage image. And the filtering unit is used for filtering the purified water body of the precipitation unit to obtain a standard water body.
The analysis unit is used for analyzing the photographed sewage image to determine the position and the medicine supplementing amount of the sewage in the sedimentation tank after aeration, so that the medicine adding and medicine adding positions are more accurate during sewage treatment, the increase of the operation cost caused by excessive medicine adding is avoided, and the increase of the sludge treatment cost is avoided.
The medicine supplementing scheme of the invention is preferentially used in a precipitation stage, namely a precipitation tank of the precipitation unit, and can also be applied to an aeration tank of the aeration unit according to actual conditions. When the device is used for an aeration tank of the aeration unit, the flow rate of the water body is lower than a set flow rate threshold, and when the device is used for supplementing medicine, the analysis unit calculates the actual medicine adding position according to the flow rate of the water body, and then the medicine adding operation is carried out. The invention can accurately administer medicine to the position needing to administer medicine, thereby shortening the sewage treatment time. The analysis unit sends control commands to the control unit according to the information of the medicine supplementing amount, the medicine supplementing position and the like, and the control unit sends medicine dosing commands to the purification device according to the control commands so as to realize accurate medicine dosing operation.
The aeration unit comprises an aeration tank, and the aeration tank comprises a water distribution pipeline, an aeration device and a first water outlet system. The water distribution pipeline guides sewage to be treated into the aeration tank, and the aeration device aerates the sewage to be treated to increase the dissolved oxygen of the water body. Biological filter materials can be paved above the water distribution pipeline and the aeration device, and the biological filter materials are supported by the supporting layer and used for preventing harmful bacteria, inorganic matters and the like from entering the sewage treatment system.
The sedimentation unit comprises a sedimentation tank, and the sedimentation tank removes suspended particles and provides space for the sewage after aeration. The sedimentation tank comprises a water inlet system, a sewage disposal system and a second water outlet system. The water inlet system is matched with the first water outlet system of the aeration tank, and the water inlet system introduces the water body of the first water outlet system into the sedimentation tank. And the sewage disposal system discharges sediment in the sedimentation tank. The delivery port of second water system sets up filter unit, filter unit can be the active carbon granule, and it adsorbs the filtration to the adsorbable pollutant in the sewage, realizes filtering once more the discharged water, guarantees the quality of discharged purified water.
Taking the supplementary medicine in the precipitation stage as an example, the precipitation tank of the precipitation unit is a containing space for bearing sewage, and the precipitation unit further comprises an image acquisition unit. The accommodating space is provided with the image acquisition unit for acquiring the sewage image in real time. The sewage image collected by the image collecting unit only comprises the sewage image in the range of the accommodating space for bearing sewage. The image collection unit may be disposed vertically above the accommodation space, and a lens of the image collection unit faces the accommodation space. The image acquisition unit can also be arranged on the inner wall of the accommodating space, so that the acquired sewage image is ensured to comprise the sewage surface. The image acquisition unit acquires visible light images, namely color images.
The analysis unit divides the accommodating space of the sedimentation stage into a plurality of grids, and the image acquisition unit correspondingly divides the acquired sewage image into grid images in contrast with the grids divided by the accommodating space.
The side wall of the accommodating space is provided with a purifying device at the edge of one end far away from sewage, and the purifying device can quantitatively supplement medicines to the appointed lattice fixed points. The purifying device is connected with a first telescopic rod, and one end, far away from the purifying device, of the first telescopic rod is fixed on one end edge, far away from sewage, of the side wall of the accommodating space.
The purifying device comprises a medicine supplementing unit and a stirring unit. The patch unit may be a conduit for patch: the medicine supplementing pipeline is fixed at one end of the first telescopic rod, which is far away from the inner wall of the accommodating space, and is positioned on an extension line of the first telescopic rod, which is far away from the inner wall of the accommodating space. The medicine supplementing pipeline is connected with the medicine chest through a medicine conveying pipe, a starting pump is arranged at one end, connected with the medicine chest, of the medicine conveying pipe, and the starting pump controls medicines in the medicine chest to be thrown into sewage in a target grid through the medicine conveying pipe and the medicine supplementing pipeline. The length of one side close to sewage is smaller than that of one side far away from sewage on one end of the first telescopic rod, namely the pipe orifice of one end of the first telescopic rod, far away from the medicine supplementing pipeline, is in a bevel connection.
The first telescopic rod is connected with one end of the medicine supplementing pipeline, and the stirring unit is arranged on one side close to sewage. The stirring unit comprises a second telescopic rod and a stirring wheel, wherein the second telescopic rod is fixed on one side, close to sewage, of the first telescopic rod, which is far away from one end of the inner wall of the accommodating space. The stirring wheel is arranged at one end of the second telescopic rod, which is far away from the first telescopic rod.
The first telescopic rod, the starting pump, the second telescopic rod and the rotating motor of the stirring wheel are respectively connected with the control unit. The control unit can adjust the rotation speed of the rotation motor of the stirring wheel according to the phase of the medicine supplementing, so as to control the stirring force of the water body at the medicine supplementing position, for example, when the control unit is used in the precipitation phase, the control unit reduces the rotation speed of the rotation motor of the stirring wheel, and micro stirring of the water body at the medicine adding position is realized.
The analysis unit dynamically monitors the sub-images of different lattices, and adjusts or determines the medicine supplementing amount, the medicine supplementing position, the medicine supplementing angle and the like of the corresponding lattices of the accommodating space according to the dynamic monitoring result.
The analysis unit sends a control command to the control unit according to the medicine supplementing quantity and the medicine supplementing angle of the corresponding lattices, and the control unit sends a medicine adding command to the purification device according to the control command to control the running of the rotating motor of the first telescopic rod, the starting pump, the second telescopic rod or the stirring wheel so as to realize the medicine supplementing operation of the target lattices.
The sewage treatment system for activated carbon adsorption filtration further comprises a storage unit which stores standard pixel values without adding purification drugs, and the standard pixel values can be input or modified through an input unit.
The storage unit is also used for storing a pollutant standard pixel value comparison table and a medicine requirement information table which correspond to different pollutants in the sewage. The pollutant standard pixel difference value refers to a difference value between a pixel value in the sewage image and a corresponding pollutant standard pixel value of a corresponding pollutant in sewage. The medicine demand is the medicine demand corresponding to one grid divided in the accommodating space. The medicine demand information table comprises medicine demand information corresponding to pollutant standard pixel difference values corresponding to different pollutants. The medicine requirement information comprises the type of the required medicine, the dosage of the required medicine, the stirring time and the like.
The pollutant standard pixel value comparison table corresponding to different pollutants and the medicine requirement amount corresponding to the pollutant standard pixel difference value corresponding to different pollutants can be one kind of pollutants or multiple kinds of pollutants.
The analysis unit analyzes the photographed sewage image to determine the position of the precipitated sewage to be supplemented with the medicine and the specific implementation steps of the medicine supplementing amount are as follows:
step one, the analysis unit reads pixel values of each grid image in the collected sewage image and determines pollutants corresponding to grids corresponding to each grid image in the sewage image;
step two, the analysis unit determines medicine requirement information corresponding to the grid image according to the determined pollutants, wherein the medicine requirement information comprises the type and the medicine quantity of required medicines;
and thirdly, determining the medicine supplementing position by the analysis unit corresponding to the grids in the accommodating space corresponding to the grid image.
The analysis unit determines the medicine supplementing angle according to the determined medicine supplementing position and the position relation of the first telescopic rod for realizing medicine supplementing, so that medicines are accurately put in. For example, the medicine supplementing position forms an included angle of 30 degrees with the nearest first telescopic rod at the horizontal position, and then the medicine supplementing angle is 30 degrees.
In the first step, the specific implementation manner of determining the pollutant corresponding to the grid corresponding to each grid image in the sewage image may be that the analysis unit calculates the difference between the pixel value of each grid image and the pollutant standard pixel value corresponding to different pollutants, so as to obtain a first difference. And when the absolute value of the first difference value is smaller than or equal to a first threshold value, the current grid image corresponds to the pollutant corresponding to the current pollutant standard pixel value.
When the absolute values of the first differences between the pixel values of the grid image and the pollutant standard pixel values corresponding to the pollutants are smaller than a first threshold value, the analysis unit selects the pollutant corresponding to the pollutant standard pixel value corresponding to the smallest first difference absolute value as the pollutant corresponding to the current grid image.
The second specific step is that the analysis unit makes a difference between a pixel value in the current grid image and a corresponding pollutant standard pixel value of the corresponding pollutant to obtain a pollutant standard pixel difference value. And then the analysis unit searches the current pollutant standard pixel difference value in the medicine requirement information table and reads the medicine requirement information corresponding to the current pollutant standard pixel difference value.
The acceptable water is colorless and transparent, so that the color of the image corresponding to the acceptable water is the same as the color of the inner wall of the accommodating space, and the accommodating space is set to be white (255.255.255) for example.
The pollutant corresponding to the current grid image is iron ions, the standard pixel value of the pollutant corresponding to the grid image is (245.222.179), if the standard pixel difference value of the current pollutant is (10.33.76), the content of the hydroxide radical required by each grid is 303.57g in the medicine requirement information table, and if the standard pixel difference value of the current pollutant is (5.16.38), the content of the hydroxide radical required by each grid is 156.58g in the medicine requirement information table.
The medicine demand information can be further adjusted according to actual conditions in sewage treatment of different industries.
When the medicine requirement information table does not find the current pollutant standard pixel difference value, the analysis unit makes a difference between the current pollutant standard pixel difference value and the pollutant standard pixel difference value in the medicine requirement information table to obtain a second difference value, the pollutant standard pixel difference value in the medicine requirement information table corresponding to the medicine requirement information table when the absolute value of the second difference value is the smallest is selected, the pollutant standard pixel difference value in the medicine requirement information table corresponding to the current pollutant standard pixel difference value is used as the pollutant standard pixel difference value, and the analysis unit reads medicine requirement information corresponding to the pollutant standard pixel difference value in the medicine requirement information table so as to obtain medicine requirement information corresponding to the current pollutant standard pixel difference value.
In the pixel value calculation, the analysis unit calculates R value, G value, and B value respectively to obtain a first difference value, a second difference value, or a contaminant standard pixel difference value.
In the second step, when the medicine requirement information table does not find the current pollutant standard pixel difference value, and when the R value, the G value and the B value in the second difference value are all positive values or all negative values, the pollutant standard pixel difference value in the medicine requirement information table corresponding to the smallest absolute value of the second difference value is directly selected, and the pollutant standard pixel difference value in the medicine requirement information table corresponding to the current pollutant standard pixel difference value is the pollutant standard pixel difference value. When the R value, the G value and the B value in the second difference value simultaneously comprise positive values or negative values, the positive values or the negative values in the R value, the G value and the B value in the second difference value are replaced by 2 times of the current value, so that the situation that the absolute value of the second difference value selected when the absolute value is calculated is not the minimum difference value, and the selected medicine requirement information is not the optimal medicine requirement information is avoided.
The aeration device of the aeration unit generates a large amount of dissolved air bubbles which are micro-bubbles, the suspended matters after the micro-bubbles are attached and flocculated enter a sedimentation tank of the sedimentation unit, and the generated micro-bubbles have different colors or friability due to different components and contents of pollutants in sewage, different oxygen contents and different micro-bubble degrees.
The aeration unit can be provided with an image acquisition unit, the image acquisition unit of the aeration unit can be arranged vertically above the aeration tank, and the lens of the image acquisition unit faces the aeration tank. The image acquisition unit can also be arranged on the inner wall of the aeration tank, so that the acquired sewage image is ensured to comprise the sewage surface. The image acquisition unit acquires visible light images, namely color images.
The analysis unit divides the accommodating space of the aeration tank into a plurality of grids, and the image acquisition unit correspondingly divides the acquired sewage image into grid images by contrasting with the grids divided by the accommodating space of the aeration tank.
When the absolute value of the difference between the pixel value of each grid image in the collected aeration tank sewage image and the set excessive aeration pixel value is smaller than a second threshold value, the analysis unit determines the fragility of the bubbles, so as to judge whether the oxygen content in the dissolved air bubbles generated by the aeration device needs to be adjusted. The set aeration excessive pixel value can be input through the input unit and stored in the storage unit.
The friability of the bubbles was determined as: the analysis unit determines the stability of the bubbles formed in the aeration process according to the coverage area of the bubbles in the grid image, namely the fragility of the bubbles, and the specific implementation steps are as follows,
step A, an analysis unit screens grid images comprising bubbles in the grid images to form a bubble image set;
step B, an analysis unit determines the number of bubble pixel points included in a bubble image set;
step C, determining the coverage rate of the bubbles in the sewage image by an analysis unit, and giving out the fragile grade of the bubbles;
and D, the analysis unit sends the oxygen content of the dissolved air bubbles corresponding to the required dissolved air bubble frangible level to the control unit, and the control unit adjusts the oxygen content of the dissolved air bubbles generated by the aeration device.
The specific implementation mode of the step A comprises that the analysis unit reads the pixel value of each pixel point in each grid image, screens each grid image comprising pixel points with the absolute value of the pixel value difference of the pixel point and the pixel value difference of the aeration transition being smaller than a second threshold value, and adds the pixel value difference to a bubble image set.
The specific implementation manner of the step B comprises the step that an analysis unit calculates the number of pixels, of which the absolute value of the pixel value difference between the pixel value of each grid image and the pixel value difference of excessive aeration is smaller than a second threshold value, in each bubble image set to obtain the number of first pixels. The first pixel point number is the total number of pixel points, wherein the absolute value of the difference between the pixel values of all the pixel points in the bubble image set and the pixel value of the aeration transition is smaller than the total number of the pixel points of the second threshold value.
The storage unit stores the number of pixels of each grid image, and the number of pixels in each grid image is the same. Each grid image in the bubble image set includes the total number of pixels thereof, the coordinates of the center pixel, and the like.
The specific implementation mode of the step C comprises that an analysis unit calculates the total number of pixel points in the sewage image, and the coverage rate of bubbles in the sewage image is obtained according to the total number of pixel points in the sewage image and the number of first pixel points.
The storage unit stores a bubble stability grade table, and the bubble stability grade table comprises grades corresponding to different coverage rates of bubbles in the sewage image and oxygen content of the required dissolved air bubbles corresponding to each grade.
The analysis unit searches the coverage rate of the corresponding bubbles in the sewage image in the bubble stability class table, and outputs the oxygen content of the dissolved air bubbles required by the coverage rate of the corresponding bubbles in the sewage image. Wherein the coverage rate of the bubbles in the bubble stability class table in the sewage image is a numerical range.
The bubble stability grade table can be set as follows, and can also be adjusted according to the sewage condition of specific industries.
In the present application, the pixel value and the pixel difference value are preferentially RGB value and RGB difference value.
The aeration tank of the aeration unit may be provided with a purifying device, and the structure of the purifying device of the aeration unit and the structure of the purifying device of the precipitation unit may be the same or different, and the setting position may be the side wall of the aeration tank, which is not particularly limited. The analysis unit can also send a dosing command to the purification device of the sedimentation tank or the purification device of the aeration unit according to the RGB values of the bubbles in the aeration tank.
A sewage treatment system with activated carbon adsorption filtration performs a test chemical supplementing means on a large-area accommodating space through regional image acquisition of cells and chemical supplementing of the cells, prevents excessive chemical adding, avoids the increase of operation cost and also avoids the increase of sludge treatment cost. In addition, the oxygen content in dissolved air bubbles generated by the aeration device can be timely adjusted according to the size, the color, the bubble stability and the like of the bubbles in the aeration tank, so that the increase of water outlet suspended matters caused by excessive aeration is avoided.
The foregoing is a description of a preferred embodiment of the invention to assist those skilled in the art in more fully understanding the invention. However, these examples are merely illustrative, and the present invention is not to be construed as being limited to the descriptions of these examples. It should be understood that, to those skilled in the art to which the present invention pertains, several simple deductions and changes can be made without departing from the inventive concept, and these should be considered as falling within the scope of the present invention.
Claims (8)
1. A sewage treatment system for activated carbon adsorption filtration, comprising: the device comprises an aeration unit, a precipitation unit, a filtering unit, an analysis unit, a control unit and a purification device;
the aeration unit is used for aerating sewage by using an aeration device; the sedimentation unit comprises a containing space for bearing sewage and an image acquisition unit, wherein the containing space is for removing suspended particles from the sewage after aeration to obtain a purified water body, and the image acquisition unit acquires a sewage image of the sewage after sedimentation in the containing space in real time, and the sewage image is a visible light image;
the filtering unit comprises activated carbon particles arranged at the water outlet of the precipitation unit and is used for filtering the purified water body of the precipitation unit to treat standard water body;
the analysis unit analyzes according to the pixel value of the photographed sewage image in the accommodating space, and determines the position and the medicine supplementing amount of the sewage in the precipitation unit, which need medicine supplementing; the analysis unit divides the accommodating space of the sedimentation unit into a plurality of grids, and the image acquisition unit correspondingly divides the acquired sewage image against the grids divided by the accommodating space to obtain grid images; the analysis unit dynamically monitors the sub-images of different grids, and adjusts or determines the medicine supplementing quantity and the medicine supplementing position of the corresponding grids of the accommodating space according to the dynamic monitoring result;
the control unit determines the position and the quantity of the supplementary drugs according to the analysis unit and sends an administration command to the purification device;
the aeration unit further comprises the image acquisition unit, and the image acquisition unit of the aeration unit acquires a sewage image of the water body after aeration; the analysis unit divides the accommodating space of the aeration tank into a plurality of grids, and the image acquisition unit correspondingly divides the acquired sewage image against the grids divided by the accommodating space of the aeration tank to obtain grid images; when the analysis unit reads the pixel value of each grid image in the collected aeration tank sewage image, including the grid image with the absolute value of the pixel value difference from the set aeration overaeration pixel value smaller than the second threshold value, the analysis unit determines the fragility of the bubbles and determines the oxygen content in the dissolved air bubbles generated by the aeration device.
2. The activated carbon adsorption filtration sewage treatment system according to claim 1, further comprising a storage unit, wherein the storage unit stores standard pixel values without adding purifying medicines, a pollutant standard pixel value comparison table corresponding to different pollutants in sewage, and a medicine demand information table;
the standard pixel value may be input or modified by an input unit.
3. The activated carbon adsorption-filtration sewage treatment system according to claim 2, wherein the analyzing unit analyzes the photographed sewage image to determine the position and the amount of the chemical supplement required for the precipitated sewage, and the specific implementation steps are as follows:
step one, the analysis unit reads pixel values of each grid image in the collected sewage image and determines pollutants corresponding to grids corresponding to each grid image in the sewage image;
step two, the analysis unit determines medicine requirement information corresponding to the grid image according to the determined pollutants, wherein the medicine requirement information comprises the type and the medicine quantity of required medicines;
and thirdly, determining the medicine supplementing position by the analysis unit corresponding to the grids in the accommodating space corresponding to the grid image.
4. The activated carbon adsorption filtration sewage treatment system according to claim 3, wherein the first step comprises the analysis unit performing difference calculation on pixel values of each grid image and pollutant standard pixel values corresponding to different pollutants respectively to obtain a first difference;
when the absolute value of the first difference value is smaller than or equal to a first threshold value, the current grid image corresponds to a pollutant corresponding to the current pollutant standard pixel value;
when the absolute values of the first differences between the pixel values of the grid image and the pollutant standard pixel values corresponding to the pollutants are smaller than a first threshold value, the analysis unit selects the pollutant corresponding to the pollutant standard pixel value corresponding to the smallest first difference absolute value as the pollutant corresponding to the current grid image.
5. The activated carbon adsorption filtration sewage treatment system according to claim 3, wherein the second specific step is that the analysis unit makes a difference between a pixel value in the current grid image and a corresponding pollutant standard pixel value of the corresponding pollutant to obtain a pollutant standard pixel difference value, and then the analysis unit searches the current pollutant standard pixel difference value in the medicine requirement information table and reads medicine requirement information corresponding to the current pollutant standard pixel difference value.
6. The activated carbon adsorption and filtration sewage treatment system according to claim 5, wherein when the medicine requirement information table does not find the current pollutant standard pixel difference value, the analysis unit makes a difference between the current pollutant standard pixel difference value and the pollutant standard pixel difference value in the medicine requirement information table to obtain a second difference value, selects the pollutant standard pixel difference value in the medicine requirement information table corresponding to the smallest absolute value of the second difference value as the pollutant standard pixel difference value in the medicine requirement information table corresponding to the current pollutant standard pixel difference value, and the analysis unit reads medicine requirement information corresponding to the pollutant standard pixel difference value in the medicine requirement information table.
7. The activated carbon adsorption-filtration sewage treatment system according to claim 1, wherein the analyzing unit determines the fragility of bubbles formed during aeration according to the coverage area of bubbles in the grid image, by the steps of,
step A, an analysis unit screens grid images comprising bubbles in the grid images to form a bubble image set;
step B, an analysis unit determines the number of bubble pixel points included in a bubble image set;
step C, determining the coverage rate of the bubbles in the sewage image by an analysis unit, and giving out the fragile grade of the bubbles;
and D, the analysis unit sends the oxygen content of the dissolved air bubbles corresponding to the required dissolved air bubble frangible level to the control unit, and the control unit adjusts the oxygen content of the dissolved air bubbles generated by the aeration device.
8. The activated carbon adsorption filtration sewage treatment system according to claim 7, wherein the storage unit stores a bubble stability class table, and the bubble stability class table comprises classes corresponding to different coverage rates of bubbles in the sewage image and oxygen content of the required dissolved air bubbles corresponding to each class;
the step C comprises the steps that an analysis unit calculates the total number of pixel points in the sewage image, and the coverage rate of bubbles in the sewage image is obtained according to the total number of pixel points in the sewage image and the number of first pixel points;
the analysis unit searches the coverage rate of the corresponding bubbles in the sewage image in the bubble stability class table, and outputs the oxygen content of the dissolved air bubbles required by the coverage rate of the corresponding bubbles in the sewage image.
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