JPS63298014A - Detecting method for sludge border surface of sedimentation pond or the like - Google Patents
Detecting method for sludge border surface of sedimentation pond or the likeInfo
- Publication number
- JPS63298014A JPS63298014A JP62133595A JP13359587A JPS63298014A JP S63298014 A JPS63298014 A JP S63298014A JP 62133595 A JP62133595 A JP 62133595A JP 13359587 A JP13359587 A JP 13359587A JP S63298014 A JPS63298014 A JP S63298014A
- Authority
- JP
- Japan
- Prior art keywords
- turbidity
- depth
- value
- displayed
- function
- 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 12
- 238000004062 sedimentation Methods 0.000 title description 8
- 238000000034 method Methods 0.000 title description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000000691 measurement method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 6
- 230000004069 differentiation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、沈澱池若しくは濃縮沈澱槽などに沈澱した汚
泥と処理水の界面検出方法に係るもので、上下水、用排
水処理施設において利用される。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for detecting the interface between sludge settled in a sedimentation tank or a concentrated sedimentation tank, and treated water, and is applicable to water, sewage, and industrial wastewater treatment facilities. be done.
用排水処理施設の沈澱池などにおいて、沈澱池の底に沈
積した汚泥と処理水との界面を検知することは、堆積汚
泥量を正確に把握するためにきわめて重要であり、これ
により堆積汚泥の排出、処理原水の流入などの運転上の
負荷の調整管理が適正に行われる。In settling basins of industrial wastewater treatment facilities, it is extremely important to detect the interface between the sludge deposited at the bottom of the settling basin and the treated water in order to accurately grasp the amount of accumulated sludge. Adjustment and management of operational loads such as discharge and inflow of treated raw water will be carried out appropriately.
この界面の検出方法は、従来、ポータプルな濁度の計測
器を用いてセンサーを沈澱池内に静かに下降させ、セン
サーが検出した濁度の値をその深さに対照させて判断す
る方法が一般に行われている。Conventionally, the conventional method for detecting this interface is to use a portable turbidity measuring device, gently lower the sensor into the sedimentation basin, and compare the turbidity value detected by the sensor with the depth. It is being done.
また、近接した２点間の電導塵が濁度によって変化する
のに着目し、この計測器を下降させて２点間の電導塵の
演算比を求め、この値が一定値以上になった深さを界面
とする方法も公知である。In addition, we focused on the fact that the conductive dust between two points in close proximity changes depending on the turbidity, and by lowering this measuring instrument, we calculated the calculation ratio of the conductive dust between the two points and determined the depth at which this value exceeded a certain value. A method in which the surface is used as an interface is also known.
さらに、本出願人の提供した実開昭６０−１６８９７４
号のように、検出された深さの値と濁度の値をマイクロ
コンピュータ−に入力させ、この双方の値の関係を線又
は棒グラフ若しくはカラーグラフィックで表示部に表示
させ、濁度の値が急激に増加して示されたときの深さを
界面として判定する方法も行われている。Furthermore, Utility Model Application Publication No. 60-168974 provided by the applicant
The detected depth value and turbidity value are input into a microcomputer, and the relationship between these two values is displayed on the display as a line, bar graph, or color graphic, and the turbidity value is There is also a method of determining the depth when it increases rapidly as an interface.
前述した従来の検出方法は、いずれも深さの値と濁度の
値を別個に処理して対照するものであり、双方の数値の
間には相関関係がないから、濁度の値が一定値以上を示
したときの深さの判断ないし読み取りについて、個人差
によるバラツキを来たす欠点がある。In all of the conventional detection methods mentioned above, the depth value and turbidity value are processed and compared separately, and since there is no correlation between the two values, the turbidity value is constant. There is a drawback that the judgment or reading of the depth when the value exceeds the value may vary due to individual differences.
また、濁度が一定値以上になったとして判断された深さ
は、必ずしも界面の深さと一致するものではないから、
その間に誤差を生じて堆積汚泥量を正確に把握できない
難点を有している。In addition, the depth at which turbidity is determined to be above a certain value does not necessarily match the depth of the interface.
This method has the disadvantage that errors occur during this time, making it impossible to accurately determine the amount of accumulated sludge.
本発明は上記の問題点をすべて解決しようとするもので
、濁度センサーの検出した沈澱池内の濁度の値と、深さ
センサーの検出した前記濁度センサーの深さの値とをマ
イクロコンピュータ−に入力させ、双方の値の関係を適
宜な表示態様で表示部に表示させる濁度の計測方法にお
いて、前記表示部に示される深さの値を、それぞれの深
さにおける濁度の値の函数として前記マイクロコンピュ
ータ−に微分演算させた値により表示させることを特徴
としている。The present invention aims to solve all of the above problems, and the turbidity value detected by the turbidity sensor and the depth value detected by the turbidity sensor by the depth sensor are stored in a microcomputer. - In a turbidity measurement method in which the relationship between both values is displayed on the display in an appropriate display mode, the depth value shown on the display is used as the turbidity value at each depth. The function is characterized in that a value obtained by differential calculation by the microcomputer is displayed.
本発明においても、従来と同様に、濁度センサーによっ
て検出された濁度の値と、深さセンサーによって計測さ
れたこのときの深さの値がマイクロコンピュータ−に入
力され、この双方の数値が線グラフ（又は棒グラフ、カ
ラーグラフィックでもよい）で表示部に表示される。In the present invention, as in the past, the turbidity value detected by the turbidity sensor and the current depth value measured by the depth sensor are input into the microcomputer, and both values are input into the microcomputer. It is displayed on the display unit as a line graph (or a bar graph or a color graphic).
そして、本発明では、前記の表示される深さの値をその
まま表示するのではなく、それぞれの深さに応じて濁度
の値を函数化しこれを前記マイクロコンピュータ−に微
分して演算させた数値により表示させるのである。In the present invention, instead of displaying the displayed depth values as they are, the turbidity values are converted into functions according to each depth, and the microcomputer differentiates and calculates the turbidity values. It is displayed numerically.
したがって、濁度センサーが処理水中を下降する場合、
濁度の値が緩やかに増加すると、それぞれの濁度を函数
化して微分した値が当該濁度の深さとして自動的に表示
される。Therefore, when the turbidity sensor moves down through the process water,
When the turbidity value gradually increases, a value obtained by converting each turbidity into a function and differentiating it is automatically displayed as the depth of the turbidity.
そして、濁度センサーが堆積汚泥の表面に接触すると濁
度が急激に増加し、この濁度は、表示部の前記線グラフ
（又は棒グラフ、カラーグラフィック）が増加方向に屈
曲することで示される。Then, when the turbidity sensor comes into contact with the surface of the accumulated sludge, the turbidity increases rapidly, and this turbidity is indicated by the line graph (or bar graph, color graphic) on the display section bending in the increasing direction.
一方、このときの深さは、前述のようにこの場合の濁度
を函数化しこれを微分した値で表示されるから、この屈
曲点の深さが界面の深さを正確に示すのであり、これを
読み取ることによって界面の位置が確実に検知されるの
である。On the other hand, the depth at this time is expressed as a value obtained by converting the turbidity in this case into a function and differentiating it as described above, so the depth of this bending point accurately indicates the depth of the interface. By reading this, the position of the interface can be reliably detected.
以下、本発明の検出方法の一実施例について説明する。 An embodiment of the detection method of the present invention will be described below.
沈澱池１の処理水（Ｗ）中には、第１図に示すように、
深さを検出する深さセンサー２と、この深さセンサー２
を経て沈澱池１内に下降し上下に移行自在なワイヤー３
で保持された濁度センサー４が装置してあり、深さセン
サー２によって検出された深さくＹ）の計測値と、濁度
センサー４によって検出されたその深さにおける処理水
の濁度（Ｘ）の計測値がマイクロコンピュータ−（図示
しない）に入力され、深さくＹ）と濁度（Ｘ）の関係が
第２図示のように線グラフ（又は棒グラフ、カラーグラ
フィックでもよい）で表示部に表示されるようにしであ
る。In the treated water (W) of sedimentation tank 1, as shown in Fig. 1,
Depth sensor 2 that detects depth and this depth sensor 2
A wire 3 that descends into the sedimentation tank 1 and can move up and down
A turbidity sensor 4 held at ) is input into a microcomputer (not shown), and the relationship between depth (Y) and turbidity (X) is displayed on the display as a line graph (or bar graph or color graphic) as shown in the second figure. It should be displayed.
本発明の検出方法は、このようにして表示される深さの
値（ｙ）を、それぞれの深さにおける濁度の値（ｘ）を
函数化し、これを微分して前記マイクロコンピュータ−
に演算表示させるようにしたものである。The detection method of the present invention converts the depth value (y) thus displayed into a function of the turbidity value (x) at each depth, differentiates this, and then converts the depth value (y) displayed into a function of the turbidity value (x) at each depth.
The calculation is displayed on the screen.
すなわち、濁度センサー４が処理水（Ｗ）中を下降する
場合、その大部分では第２図示のように濁度（Ｘ）の値
が（ｘａ）から（ｘｍ）まで緩やかに増加し、この値は
それぞれの深さに応じて函数化され、これを微分した深
さの値（ｙａ）から（ｙｍ）が当該濁度の深さとして自
動的に表示される。これは濁度センサー４が逆に上昇し
、濁度（Ｘ）の値が（ｘｍ）から（ｘａ）まで減少する
ときでも同様である。That is, when the turbidity sensor 4 descends in the treated water (W), the value of turbidity (X) gradually increases from (xa) to (xm) in most of the water as shown in the second diagram. The value is converted into a function according to each depth, and the depth values (ya) to (ym) obtained by differentiating this are automatically displayed as the depth of the turbidity. This is the same even when the turbidity sensor 4 increases and the value of turbidity (X) decreases from (xm) to (xa).
そして、濁度センサー４が堆積汚泥の表面に接触すると
濁度（Ｘ）が急激に増加し、その計測値が（Ｘｎ）に変
化する。この濁度の増量変化は、表示部の前記線グラフ
（又は棒グラフ、カラーグラフィック）が濁度（Ｘ）の
増加方向に屈曲することにより示される。Then, when the turbidity sensor 4 comes into contact with the surface of the accumulated sludge, the turbidity (X) increases rapidly, and the measured value changes to (Xn). This increase in turbidity is indicated by the line graph (or bar graph, color graphic) on the display section bending in the direction of increase in turbidity (X).
一方、このときの深さくＹ）は、前述のようにこの深さ
における濁度の値の函数を微分した値で表示されるから
、この屈曲点（Ｐ）の深さくｙｎ）が界面の深さを正確
に示すのであり、これを読み取ることによって界面の位
置を確実に検知できるのである。On the other hand, since the depth Y) at this time is expressed as a value obtained by differentiating the function of the turbidity value at this depth as described above, the depth Y) of this bending point (P) is the depth of the interface. By reading this, the position of the interface can be reliably detected.
上記のごとく、本発明によれば、計測された深さの値を
そのまま表示することなく、各深さにおける計測濁度の
値を函数化しこれを微分して表示させるから、濁度セン
サーが堆積汚泥に接触して濁度が増加した場合に、表示
される深さが正確且つ確実に堆積汚泥の界面を示すめで
あり、従来のように界面の判断に誤差を生ずることがな
く、堆積汚泥量を正確に把握して運転管理をより適正に
なし得る効果がある。As described above, according to the present invention, the measured turbidity value at each depth is converted into a function and differentiated and displayed, without displaying the measured depth value as is. This is to accurately and reliably indicate the interface of accumulated sludge when the turbidity increases due to contact with sludge. This has the effect of making it possible to accurately understand the situation and manage operations more appropriately.
図面は本発明を沈澱池の界面検出に用いた一実施例で、
第１図は沈澱池の概念図、第２図は表示部の一表示態様
の説明図である。
２・・・深さセンサー、
４・・・濁度センサー。The drawing shows an example in which the present invention is used to detect the interface of a sedimentation tank.
FIG. 1 is a conceptual diagram of a sedimentation tank, and FIG. 2 is an explanatory diagram of one display mode of the display section. 2...Depth sensor, 4...Turbidity sensor.
Claims (1)
出した前記濁度の深さの値とをマイクロコンピューター
に入力させ、双方の値の関係を適宜な表示態様で表示部
に表示させる濁度の計測方法において、前記表示部に示
される深さの値が、それぞれの深さにおける濁度の値の
函数として微分演算した値で表示されることを特徴とし
た沈澱池等における汚泥界面の検出方法。The turbidity value detected by the turbidity sensor and the turbidity depth value detected by the depth sensor are input into a microcomputer, and the relationship between both values is displayed on the display unit in an appropriate display format. A sludge interface in a settling tank, etc., characterized in that, in the turbidity measurement method, the depth value shown on the display section is displayed as a value obtained by differential calculation as a function of the turbidity value at each depth. Detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62133595A JP2663345B2 (en) | 1987-05-28 | 1987-05-28 | Detection method of sludge interface in sedimentation ponds etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62133595A JP2663345B2 (en) | 1987-05-28 | 1987-05-28 | Detection method of sludge interface in sedimentation ponds etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63298014A true JPS63298014A (en) | 1988-12-05 |
| JP2663345B2 JP2663345B2 (en) | 1997-10-15 |
Family
ID=15108484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62133595A Expired - Lifetime JP2663345B2 (en) | 1987-05-28 | 1987-05-28 | Detection method of sludge interface in sedimentation ponds etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2663345B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0547846U (en) * | 1991-11-25 | 1993-06-25 | 野田通信株式会社 | Display device for sludge interface in turbidity measurement |
| JP2011524802A (en) * | 2008-12-24 | 2011-09-08 | クリスタル・ラグーンズ・コーポレーション・エルエルシー | Efficient filtration process of water in aquarium for recreational facilities and decorative use, where filtration is performed on a small amount of water and not on the total volume of aquarium water process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286526A (en) * | 2001-03-23 | 2002-10-03 | Sumitomo Heavy Ind Ltd | Sludge interface measuring method and sludge interface measuring instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135661U (en) * | 1984-02-21 | 1985-09-09 | 株式会社明電舎 | concentration distribution meter |
| JPS61134626A (en) * | 1984-12-06 | 1986-06-21 | Tomakomai Toubu Sekiyu Bichiku Kk | Detector for liquid boundary surface |
| JPS61182526A (en) * | 1985-02-08 | 1986-08-15 | Sumitomo Electric Ind Ltd | Detecting method of liquid surface |
| JPS6282327A (en) * | 1985-10-08 | 1987-04-15 | Power Reactor & Nuclear Fuel Dev Corp | Glass level detecting method |
-
1987
- 1987-05-28 JP JP62133595A patent/JP2663345B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60135661U (en) * | 1984-02-21 | 1985-09-09 | 株式会社明電舎 | concentration distribution meter |
| JPS61134626A (en) * | 1984-12-06 | 1986-06-21 | Tomakomai Toubu Sekiyu Bichiku Kk | Detector for liquid boundary surface |
| JPS61182526A (en) * | 1985-02-08 | 1986-08-15 | Sumitomo Electric Ind Ltd | Detecting method of liquid surface |
| JPS6282327A (en) * | 1985-10-08 | 1987-04-15 | Power Reactor & Nuclear Fuel Dev Corp | Glass level detecting method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0547846U (en) * | 1991-11-25 | 1993-06-25 | 野田通信株式会社 | Display device for sludge interface in turbidity measurement |
| JP2011524802A (en) * | 2008-12-24 | 2011-09-08 | クリスタル・ラグーンズ・コーポレーション・エルエルシー | Efficient filtration process of water in aquarium for recreational facilities and decorative use, where filtration is performed on a small amount of water and not on the total volume of aquarium water process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2663345B2 (en) | 1997-10-15 |
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