JPH024322B2 - - Google Patents
Info
- Publication number
- JPH024322B2 JPH024322B2 JP18650284A JP18650284A JPH024322B2 JP H024322 B2 JPH024322 B2 JP H024322B2 JP 18650284 A JP18650284 A JP 18650284A JP 18650284 A JP18650284 A JP 18650284A JP H024322 B2 JPH024322 B2 JP H024322B2
- Authority
- JP
- Japan
- Prior art keywords
- flocculant
- sedimentation
- sedimentation basin
- control device
- treated water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004062 sedimentation Methods 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 239000003344 environmental pollutant Substances 0.000 claims description 7
- 231100000719 pollutant Toxicity 0.000 claims description 7
- 239000000701 coagulant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は沈でん池制御装置に係り、凝集剤の注
入の沈でん池制御装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a sedimentation tank control device, and more particularly, to an improvement of a sedimentation tank control device for injection of a coagulant.
従来、沈でん池の沈でん処理として処理水内の
汚濁物質をフロツク化するために注入する凝集剤
の制御は、沈でん池の流入量に対する注入率制御
を行うのが一般的な方法であり、この注入率は、
処理水量の水質、季節、水温、水量等から経験値
として人為的に設定することが多かつた。このた
め最適な注入率の設定が行われることは少なく、
凝集剤の浪費、処理水質の悪化等が生じていた。
また、計算機等による注入率自動制御の場合で
も、沈でん池出口の処理水の濁度から沈でん池内
フロツクの比重、体積、個数を推定計算して注入
率を決定しているので実際の沈でん池のフロツク
形成状況とは異なり、制御精度に限界があつた。
Conventionally, the common method for controlling the coagulant injected to flocculate pollutants in treated water as part of sedimentation treatment in a sedimentation pond is to control the injection rate with respect to the amount of inflow into the sedimentation basin. The rate is
The amount of treated water was often set artificially as an empirical value based on water quality, season, water temperature, water amount, etc. For this reason, the optimal injection rate is rarely set.
This resulted in waste of flocculant and deterioration of treated water quality.
Furthermore, even in the case of automatic injection rate control using a computer, etc., the injection rate is determined by estimating the specific gravity, volume, and number of flocs in the sedimentation basin from the turbidity of the treated water at the outlet of the sedimentation basin. Unlike the floc formation situation, there was a limit to control accuracy.
本発明は上記のような従来技術の欠点を補な
い、沈でん池内の汚濁物質が注入された凝集剤に
より形成するフロツクの状況を検出して制御する
ことにより、凝集剤の注入制御の精度を向上させ
るような、沈でん池制御装置を提供することを目
的とする。
The present invention compensates for the drawbacks of the prior art as described above, and improves the accuracy of flocculant injection control by detecting and controlling the condition of flocs formed by the flocculant injected with pollutants in the sedimentation basin. The purpose of the present invention is to provide a sedimentation tank control device that allows
本発明は凝集剤を混入して処理水内の汚濁物質
をフロツク化することにより沈でん処理を行う沈
でん池と、この沈でん池に流入する処理水量を測
定する流量計と、沈でん池に流入する処理水量を
制御する流入弁と、凝集剤を混入する凝集剤注入
機と、流入弁と凝集剤注入機を制御する制御装置
からなる沈でん池制御装置に於て、沈でん池内の
フロツクの形成状況を写し出す工業用のテレビカ
メラ装置と、テレビカメラ装置の画像を認識する
画像認識装置を具備した事を特徴とした沈でん池
制御装置である。すなわち、沈でん池内のフロツ
クの形成状況をテレビカメラ装置に写し出し、こ
の画像から画像認識装置によりフロツクの形成状
況を制御プロセス値として制御装置へ入力して、
流入弁と凝集剤注入機を制御する沈でん池制御装
置である。
The present invention relates to a sedimentation basin that performs sedimentation treatment by mixing a flocculant to flocculate pollutants in treated water, a flowmeter that measures the amount of treated water flowing into the sedimentation basin, and a treatment tank that measures the amount of treated water flowing into the sedimentation basin. The sedimentation basin control device consists of an inflow valve that controls water flow, a flocculant injection machine that mixes flocculant, and a control device that controls the inflow valve and flocculant injection machine, and displays the state of floc formation in the sedimentation basin. This sedimentation tank control device is characterized by being equipped with an industrial television camera device and an image recognition device that recognizes images from the television camera device. That is, the floc formation situation in the sedimentation basin is photographed on a television camera device, and from this image, the floc formation situation is input to the control device as a control process value using an image recognition device.
This is a settling tank control device that controls the inlet valve and coagulant injection machine.
次に本発明の一実施例を説明する。第１図は凝
集剤を混入して処理水内の汚濁物質をフロツク化
することにより沈でん処理を行う沈でん池１と、
沈でん池１に流入する処理水量を測定する流量計
２と、沈でん池１に流入する処理水量を制御する
流入弁３と、凝集剤を混入する凝集剤注入機４
と、流入弁３と凝集剤注入機４を制御する制御装
置５からなる沈でん池制御装置に於て、沈でん池
１の中のフロツクの形成状況を写し出すテレビカ
メラ装置６と、テレビカメラ装置６の画像を認識
する画像認識装置７を具備した事を特徴とした沈
でん池制御装置の構成図を示している。
Next, one embodiment of the present invention will be described. Figure 1 shows a sedimentation pond 1 that performs sedimentation treatment by mixing a coagulant to flocculate pollutants in treated water;
A flow meter 2 that measures the amount of treated water flowing into the sedimentation basin 1, an inflow valve 3 that controls the amount of treated water flowing into the sedimentation basin 1, and a flocculant injection machine 4 that mixes a flocculant.
In the sedimentation tank control device, which includes a control device 5 that controls the inflow valve 3 and the flocculant injector 4, a television camera device 6 that shows the formation status of flocs in the sedimentation pond 1; A configuration diagram of a sedimentation pond control device characterized by being equipped with an image recognition device 7 that recognizes images is shown.
このような構成のものにおいて、沈でん池１の
汚濁物質は凝集剤注入機４から混入される凝集剤
と反応してフロツクを形成し、次第に成長して沈
でんしていく。このフロツクの形成状況を工業用
テレビカメラ装置６で写し出し、その画像から画
像認識装置７により、フロツクの形成状況を認識
判定する。第２図は画像認識の手順を示すフロー
チヤートである。８は画像入力を示し、検出のた
めの光学系を介してテレビカメラ装置６の撮像系
により画像データを取り込む。９は前処理を示
し、雑音の除去や２値化処理・濃淡化処理などを
行う。１０は特徴抽出を示し、画像データを元に
物体領域の分離抽出や画面全体に二次元的微分処
理を行うことによる画像のエツジ部の抽出などを
行う。１１は認識判定を示し、抽出した特徴デー
タを組合せて認識判定を行う。認識判定したフロ
ツクの大きさ、数、分布などのフロツクの形成状
況を制御装置５へ入力し、制御装置５はフロツク
が小さく、数も少なければ凝集剤注入機４を制御
して凝集剤をより多く混入するか、流入弁３を制
御して流入弁３の開度を小さくして処理水量を少
なくし、フロツクが大きくなりすぎて、更に小さ
いフロツクに分解し数が多ければ凝集剤注入機４
を制御して凝集剤の混入を少なくするか流入弁３
を制御して流入弁３の開度を大きくし処理水量を
多くする、などの制御を行う。このように、凝集
剤混入の目的である沈でん池１のフロツク形成の
状況を、プロセス値として制御装置５に入力し制
御系に取り組むことができるので、精度の高い凝
集剤混入を行うことができ、効率の高い沈でん処
理を行うことができ、効率の高い沈でん処理を行
うことができる。 In such a configuration, the pollutants in the sedimentation basin 1 react with the flocculant mixed in from the flocculant injector 4 to form flocs, which gradually grow and settle. The state of formation of the floc is photographed by an industrial television camera device 6, and the image recognition device 7 recognizes and determines the state of formation of the floc from the image. FIG. 2 is a flowchart showing the procedure of image recognition. 8 indicates image input, and image data is captured by the imaging system of the television camera device 6 via an optical system for detection. 9 indicates preprocessing, in which noise removal, binarization processing, shading processing, etc. are performed. Reference numeral 10 indicates feature extraction, in which an object region is separated and extracted based on the image data, and an edge portion of the image is extracted by performing two-dimensional differential processing on the entire screen. Reference numeral 11 indicates recognition determination, and recognition determination is performed by combining extracted feature data. The recognized floc formation status, such as the size, number, and distribution of flocs, is input to the control device 5, and if the flocs are small and the number is small, the control device 5 controls the flocculant injector 4 to increase the flocculant. If a large amount of flocs is mixed in, or the amount of treated water is reduced by controlling the inflow valve 3 to reduce the opening degree of the inflow valve 3, the flocs become too large and are broken down into smaller flocs.
Inflow valve 3.
Control is performed such as increasing the opening degree of the inflow valve 3 and increasing the amount of treated water. In this way, the condition of floc formation in the sedimentation basin 1, which is the purpose of coagulant mixing, can be input to the control device 5 as a process value and used in the control system, so that highly accurate coagulant mixing can be performed. , it is possible to perform highly efficient sedimentation treatment, and it is possible to perform highly efficient sedimentation treatment.
本発明によれば、沈でん池内の汚濁物質が注入
された凝集剤によりフロツクを形成し、沈でんし
て行く状況を検出して直接プロセス値として制御
系に取り込むことができるので、精度の高い凝集
剤注入制御を行うことができ、効率の高い沈でん
処理を行うことができる。
According to the present invention, it is possible to form flocs with the coagulant injected with pollutants in the sedimentation tank, and detect the sedimentation situation and directly input it into the control system as a process value. Injection control can be performed and highly efficient sedimentation processing can be performed.
また、従来の沈でん池制御装置に、テレビカメ
ラ装置と画像認識装置を増設するだけなので、従
来設備に対しても容易に改造を行い機能の向上を
計ることができるし、マイクロ・コンピユータ等
を利用すれば制御装置と画像認識装置を一体化す
ることも可能である。 In addition, simply adding a television camera and image recognition device to the conventional sedimentation tank control system allows for easy modification of conventional equipment to improve functionality, and the use of microcomputers, etc. Then, it is also possible to integrate the control device and the image recognition device.
第１図は、本発明の一実施例を示す沈でん池制
御装置の構成図、第２図は画像認識装置の画像認
識の手順を示すフローチヤート図である。
１……沈でん池、２……流量計、３……流入
弁、４……凝集剤注入機、５……制御装置、６…
…テレビカメラ装置、７……画像認識装置、８…
…画像入力、９……前処理、１０……特徴抽出、
１１……認識判定。
FIG. 1 is a block diagram of a settling tank control device showing an embodiment of the present invention, and FIG. 2 is a flowchart showing the procedure of image recognition by an image recognition device. DESCRIPTION OF SYMBOLS 1... Sedimentation basin, 2... Flow meter, 3... Inflow valve, 4... Coagulant injection machine, 5... Control device, 6...
...TV camera device, 7...Image recognition device, 8...
...Image input, 9...Preprocessing, 10...Feature extraction,
11...Recognition judgment.
Claims (1)
ツク化することにより沈でん処理を行う沈でん池
と、この沈でん池に流入する処理水量を測定する
流量計と、前記沈でん池に流入する処理水量を制
御する流入弁と、前記凝集剤を混入する凝集剤注
入機と、前記流入弁及び凝集剤注入機を制御する
制御装置からなる沈でん池制御装置に於て、前記
沈でん池内のフロツクの形成状況を写し出すテレ
ビカメラ装置と、このテレビカメラ装置の画像を
認識する画像認識装置を具備した事を特徴とする
沈でん池制御装置。1. A sedimentation basin that performs sedimentation treatment by mixing a flocculant to flocculate pollutants in the treated water, a flow meter that measures the amount of treated water flowing into this sedimentation basin, and the amount of treated water flowing into the sedimentation basin. In a sedimentation basin control device comprising an inflow valve for controlling the flocculant, a flocculant injection machine for mixing the flocculant, and a control device for controlling the inflow valve and the flocculant injection machine, the formation status of flocs in the sedimentation basin can be controlled. What is claimed is: 1. A sedimentation pond control device comprising: a television camera device for projecting images; and an image recognition device for recognizing images from the television camera device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18650284A JPS6164307A (en) | 1984-09-07 | 1984-09-07 | Apparatus for controlling sedimentation basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18650284A JPS6164307A (en) | 1984-09-07 | 1984-09-07 | Apparatus for controlling sedimentation basin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6164307A JPS6164307A (en) | 1986-04-02 |
| JPH024322B2 true JPH024322B2 (en) | 1990-01-26 |
Family
ID=16189612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18650284A Granted JPS6164307A (en) | 1984-09-07 | 1984-09-07 | Apparatus for controlling sedimentation basin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6164307A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62241512A (en) * | 1986-04-10 | 1987-10-22 | Hitachi Ltd | Device for controlling injection of flocculant |
| JP7146548B2 (en) * | 2018-09-26 | 2022-10-04 | オルガノ株式会社 | Water treatment method and water treatment equipment |
| JP7344018B2 (en) * | 2019-06-19 | 2023-09-13 | オルガノ株式会社 | Water treatment method and water treatment equipment |
| JP7344017B2 (en) * | 2019-06-19 | 2023-09-13 | オルガノ株式会社 | Water treatment method and water treatment equipment |
| US20220001306A1 (en) * | 2021-08-01 | 2022-01-06 | Atharv N. Naidu | Liquid filteration system |
-
1984
- 1984-09-07 JP JP18650284A patent/JPS6164307A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6164307A (en) | 1986-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |