JPS63275948A - Bubble washing type water quality meter for batch type activated sludge process - Google Patents
Bubble washing type water quality meter for batch type activated sludge processInfo
- Publication number
- JPS63275948A JPS63275948A JP62110996A JP11099687A JPS63275948A JP S63275948 A JPS63275948 A JP S63275948A JP 62110996 A JP62110996 A JP 62110996A JP 11099687 A JP11099687 A JP 11099687A JP S63275948 A JPS63275948 A JP S63275948A
- Authority
- JP
- Japan
- Prior art keywords
- water quality
- quality meter
- air
- bubble
- aeration
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000010802 sludge Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 38
- 238000005406 washing Methods 0.000 title abstract description 7
- 238000005273 aeration Methods 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000004062 sedimentation Methods 0.000 claims description 13
- 239000010865 sewage Substances 0.000 claims description 11
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 7
- 239000006228 supernatant Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 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
Landscapes
- Activated Sludge Processes (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ、産業上の利用分野
本発明は、家庭や畜舎等から排出される汚水を単一の処
理槽内でばっ気、沈殿及び排水工程を順次経ることによ
り浄化処理する回分式活性汚泥法の処理槽内に設置され
る水質計であって、測定部周辺の汚れを気泡の発散によ
り除去してから水質の測定を行うものに関し、特に水質
計の気泡洗浄を処理槽内でのばっ気工程に同期させた気
泡洗浄型水質計に係る。[Detailed Description of the Invention] A. Industrial Application Field The present invention is a batch method for purifying wastewater discharged from households, livestock sheds, etc. by sequentially passing through aeration, sedimentation, and drainage steps in a single treatment tank. Regarding water quality meters installed in the treatment tank using the activated sludge method, which measure the water quality after removing dirt around the measuring part by emitting air bubbles, it is especially important to clean the air bubbles inside the treatment tank. This relates to a bubble washing type water quality meter that is synchronized with the aeration process.
Ｂ０発明の概要
本発明は、単一処理槽内でばっ気、沈殿及び排水の各処
理工程を経て汚水処理を行う回分式活性汚泥法の処理槽
内に設置される気泡洗浄型水質計であって、測定部周辺
の汚れを気泡の発散により除去してから水質の測定を行
うものにおいて、処理槽内のばっ気用散気装置へ通ずる
送気管から水質計の気泡発生部へ通ずる分岐管を分岐さ
せて水質計の気泡洗浄とばっ気工程を同期させたことに
より。B0 Summary of the Invention The present invention is a bubble cleaning type water quality meter installed in a treatment tank of a batch activated sludge method in which sewage is treated through aeration, sedimentation, and wastewater treatment steps in a single treatment tank. , in devices where water quality is measured after removing dirt around the measuring part by emitting air bubbles, a branch pipe is connected from the air supply pipe leading to the aeration diffuser in the treatment tank to the air bubble generating part of the water quality meter. By synchronizing the bubble cleaning and aeration process of the water quality meter.
沈殿、排水工程における槽内の汚泥の沈殿状態を乱すこ
となくＩＩＩＩＩ甲な構造で水質計の十分な洗浄を行え
るようにして正確な水質管理の指標を得ると共に、長期
に頁連続使用を可能にして水質処理システム全体として
信頼性を向上させたものである。The water quality meter can be thoroughly cleaned without disturbing the sedimentation state of sludge in the tank during the sedimentation and drainage process, allowing for sufficient cleaning of the water quality meter to obtain accurate indicators for water quality control, as well as enabling continuous use over a long period of time. This improves the reliability of the water treatment system as a whole.
Ｃ０従来の技術
家庭や畜舎等から排出される汚水の生物処理方法として
、近年、回分式活性汚泥法が注目されている。この方法
は、単一の処理槽によりばっ気、沈殿及び排水の各処理
を行うもので、比較的簡屯な施設によって汚水中の窒素
やリン酸を容易に除去することができる。この方法にお
いて使用する処理槽には、汚水の硝化や窒素の除去状態
を把握するために、水質管理の指標となるＰＨ１酸化還
元電位、溶存酸素濃度等を常時監視する水質計が不可欠
である。BACKGROUND OF THE INVENTION In recent years, a batch activated sludge method has been attracting attention as a biological treatment method for wastewater discharged from households, livestock sheds, etc. This method uses a single treatment tank to perform aeration, sedimentation, and wastewater treatment, and nitrogen and phosphoric acid in wastewater can be easily removed using relatively simple facilities. The treatment tank used in this method requires a water quality meter that constantly monitors the PH1 oxidation-reduction potential, dissolved oxygen concentration, etc., which are indicators of water quality management, in order to understand the nitrification and nitrogen removal status of wastewater.
そこで、このような汚水中で用いられる水質計としては
、測定部周辺に付着する汚水を気泡の発散により除去し
て測定値の正確を期するものが知られている。Therefore, as a water quality meter used in such sewage, there is a known water quality meter that removes the sewage adhering to the vicinity of the measuring part by emitting air bubbles to ensure the accuracy of the measured value.
Ｄ６発明が解決しようとする問題点
上記従来の水質計においては、処理槽内での沈殿、排水
工程における汚泥と上澄み液との分離状態を乱して汚水
の浄化を行うことができなくなり、またこれを回避する
ため気泡洗浄を行う気泡発生装置にエアーポンプやばっ
気工程との同期をとる電気回路を必要として構造が複雑
になるという問題点がある。D6 Problems to be Solved by the Invention In the above-mentioned conventional water quality meters, sewage cannot be purified due to sedimentation in the treatment tank and disturbance of the state of separation between sludge and supernatant liquid in the drainage process. In order to avoid this, the bubble generating device that performs bubble cleaning requires an air pump and an electric circuit to synchronize with the aeration process, resulting in a complicated structure.
従って、本発明（よ、上記問題点を解決し、沈殿、排水
工程における処理槽内の沈殿状態を保持すると共に、気
泡洗浄を可能にする簡易な構成の水質計を提供しようと
するものである。Therefore, the present invention aims to solve the above-mentioned problems and provide a water quality meter with a simple structure that maintains the sedimentation state in the treatment tank during the sedimentation and drainage process and enables bubble cleaning. .
Ｅ８問題点を解決するための手段
上記問題点を解決するため、本発明においては、甲−処
理槽内でばっ低、沈殿及び排水の各処理工程を経て汚水
処理を行う回分式活性汚泥法の処理槽内に設置される気
泡洗浄型水質計において、処理槽内のばっ気層散気装置
へ通ずる送気管から水質計の気泡発生部へ通ずる分岐管
を分岐させて水質計の六方洗浄とばっ気工程を同期させ
るようにして回分式活性汚泥法の気泡洗浄型水質計を構
成した。E8 Means for Solving Problems In order to solve the above problems, the present invention employs a batch activated sludge method in which sewage is treated in a treatment tank through each step of evaporation, sedimentation, and drainage. In a bubble cleaning type water quality meter installed in a tank, a branch pipe leading to the bubble generation part of the water quality meter is branched from the air supply pipe leading to the aeration layer diffuser in the treatment tank to perform hexagonal cleaning and aeration of the water quality meter. A bubble washing type water quality meter using a batch activated sludge method was constructed by synchronizing the processes.
Ｆ１作用
本発明の回分式活性汚泥法の気泡洗浄型水質計において
は、処理槽内でばっ気工程が行われるときに、ばっ気層
の散気装置へ通ずる送気管から分岐した分岐管へエアー
が分流し、これを通じて水質計の気泡発生部へエアーが
送られ、ここで気泡が発生し、これにより測定部周辺の
汚濁物質を散乱させて水質計を洗浄する。また、沈殿、
排水工程が行われる間は、送気管にエアーが流通しない
ので洗浄は行われず、従って汚泥の沈殿状態を気泡によ
って乱すことがない。F1 action In the bubble washing type water quality meter for the batch activated sludge process of the present invention, when the aeration process is performed in the treatment tank, air flows into the branch pipe that branches from the air supply pipe leading to the aeration device of the aeration layer. Air is sent through this to the bubble generating part of the water quality meter, where air bubbles are generated, which scatters pollutants around the measuring part and cleans the water quality meter. Also, precipitation,
While the drainage process is being performed, air is not flowing through the air pipe, so cleaning is not performed, and therefore the sedimentation state of the sludge is not disturbed by air bubbles.
Ｇ、実施例
本発明の実施例を図に基いて説明する０図は回分式活性
汚泥法における処理槽の概略的構成図であって、同図に
おいて１は、回分式活性汚泥法により汚水処理を行う処
理槽である。処理層１の内部には、上澄み液を排出する
排水装置２と、上澄み液の水質を感知して電気的信号を
発し、外部の水質計指示変換器８で水質表示する水質計
６と、送気管４を通゛じて外部のブロワ−３からのエア
ーを噴出してばっ気を行う散気装置５が夫々設置されて
いる。水質計６は、例えばＰＨ計、酸化還元電位計、溶
存酸素濃度計等の水質管理の指標となる物性を電極で感
知する計器である。水質計６の下端部には、気泡発生部
７が設けれられている。G. EXAMPLE An example of the present invention will be explained based on the drawings. Figure 0 is a schematic configuration diagram of a treatment tank in a batch activated sludge method, and in the same figure, 1 is a sewage treatment method using a batch activated sludge method. This is a treatment tank that performs Inside the treatment layer 1, there is a drainage device 2 for discharging the supernatant liquid, a water quality meter 6 that senses the water quality of the supernatant liquid, issues an electrical signal, and displays the water quality with an external water quality meter indicator converter 8, An air diffuser 5 is installed for aeration by blowing air from an external blower 3 through the trachea 4. The water quality meter 6 is an instrument that uses electrodes to sense physical properties that serve as indicators for water quality management, such as a PH meter, an oxidation-reduction potential meter, and a dissolved oxygen concentration meter. A bubble generating section 7 is provided at the lower end of the water quality meter 6.
この気泡発生部７には、前記送気管４の途上から分岐す
る分岐管９が連通している。分岐管９の途上には、配管
４から分流するエアーの圧力を加減する圧力調整バルブ
８が取付けられている。A branch pipe 9 that branches off from the middle of the air supply pipe 4 is in communication with the bubble generating section 7 . A pressure regulating valve 8 is installed in the middle of the branch pipe 9 to adjust the pressure of the air branched from the pipe 4.
次に上記実施例の作用を説明する。処理槽１内に汚水Ｗ
が注入された後、エアーがブロワ−３から配管４を介し
て散気装置５に送られる。散気装置５により汚水Ｗ中に
気泡が発生拡散することによって汚水Ｗが攪拌されてば
っ気工程が行われる。Next, the operation of the above embodiment will be explained. Sewage W in treatment tank 1
After the air is injected, the air is sent from the blower 3 to the air diffuser 5 via the piping 4. The air bubbles are generated and diffused in the waste water W by the aeration device 5, so that the waste water W is stirred and an aeration process is performed.
このときブロワ−３からのエアーは、送気管４から分岐
する分岐管９へも向い、水質計６の気泡発生部７におい
て気泡となり散逸する。発散した気泡は、水質計６の測
定部付近で衝突して激しい水流を形成し、謂定部周辺へ
の汚泥等の付着を妨げることにより洗浄作用を行う、こ
の際、配管９に設けた圧力調整用バルブ８で分流するエ
アーの圧力を調節することにより、気泡の発生量を加減
して適度な洗浄力を得ることができる。こうして洗浄さ
れた水質計６によって汚水Ｗの水質を検出し。At this time, the air from the blower 3 is also directed to a branch pipe 9 branching from the air supply pipe 4, and becomes bubbles in the bubble generating section 7 of the water quality meter 6 and dissipates. The emitted air bubbles collide near the measurement part of the water quality meter 6 to form a strong water flow, which performs a cleaning action by preventing sludge from adhering to the area around the measurement part. By adjusting the pressure of the divided air with the adjustment valve 8, the amount of bubbles generated can be adjusted to obtain an appropriate cleaning power. The water quality of the waste water W is detected by the water quality meter 6 thus washed.
その情報に応じた処理を行う、ばっ気工程を終了したら
、ブロワ−３を止めて沈殿工程に移る。沈殿工程におい
ては、前記ばっ気工程で流動させた汚水Ｗ中の汚濁物質
を沈殿させる。散気装置の停止により同時に水質計６の
気泡発生部７へのエアーの供給が停止し、汚水Ｗの静止
状態が保たれる。After completing the aeration process in which processing is performed according to the information, the blower 3 is stopped and the process proceeds to the precipitation process. In the precipitation step, pollutants in the wastewater W fluidized in the aeration step are precipitated. When the air diffuser is stopped, the supply of air to the bubble generating section 7 of the water quality meter 6 is simultaneously stopped, and the sewage W remains stationary.
この状態においても、沈殿により汚泥と分離された上澄
み液の水質を水質計で正確に検出することができる。次
の排水工程では、前記上澄み液を排水装［２で排出して
汚水処理が終了する。この工程でも沈殿工程と同様に上
澄み液の分離状態が保たれる。Even in this state, the water quality of the supernatant liquid separated from the sludge by precipitation can be accurately detected with a water quality meter. In the next drainage process, the supernatant liquid is discharged through the drainage system [2, and the wastewater treatment is completed. In this step as well, the separation state of the supernatant liquid is maintained as in the precipitation step.
Ｈ０発明の効果
以上のように本発明においては、は−処理槽内でばっ気
、沈殿及び排水の各処理工程を経て汚水処理を行う回分
式活性汚泥法の処理槽内に設置される気泡洗浄型水質計
において、処理槽内のばっ気用散気装置へ通ずる送気管
から水質計の気泡発生部へ通ずる分岐管を分岐させて水
質計の気泡洗浄とばっ気工程を同期させるようにしたの
で、処理槽における沈殿、排水工程では発泡を行わずに
沈殿物質と上澄み液との分離状態を保つことができる一
方、ばっ気工程ではばっ気層のブロワ−を用いて水質計
の気泡洗浄を行うことができ、しかも、気泡洗浄用の特
別のエアーポンプやばっ気工程との同期に必要な電気回
路がなくＮ中、な端成であるため、長期間無保守で正確
な水質管理の指標を得ることができ、水質計の信頼性、
ひいては処理システム全体の信頼性を大幅に向上させる
ことができるという効果を奏する。H0 Effects of the Invention As described above, the present invention provides an air-bubble cleaning type installed in a treatment tank of the batch type activated sludge method, which performs sewage treatment through aeration, sedimentation, and drainage treatment steps in the treatment tank. In the water quality meter, the air supply pipe leading to the aeration diffuser in the treatment tank is branched off to the bubble generating part of the water quality meter to synchronize the bubble cleaning and aeration process of the water quality meter. In the sedimentation and drainage process in the treatment tank, the separation between precipitated substances and supernatant liquid can be maintained without foaming, while in the aeration process, a blower in the aeration layer is used to clean the water quality meter. Furthermore, since there is no special air pump for cleaning bubbles or an electric circuit required for synchronization with the aeration process, it is simple to use in nitrogen, so accurate water quality management indicators can be obtained without maintenance for a long period of time. Can improve the reliability of the water quality meter,
As a result, the reliability of the entire processing system can be significantly improved.
図は回分式活性汚泥法における処理槽の概略的構成図で
ある。
１・・・処理槽、４・・・送気管、５・・・散気装置、
６・・・水質計、７・・・気泡発生部、９・・・分岐管
、”Ｗ・・・汚水。
即」里卑曹の才既略的木糞へ図
１・・・・・・・怨ＪＩＸ日
４・・・・・・・建汽１
５・・・・・川敷気装置
６・・・・・・・ｙｋｔ言十
７・・・・・・儀泡発生舒
９・・・・・・今故管
Ｗ・・・・・・・・乃水The figure is a schematic diagram of a treatment tank in the batch activated sludge method. 1... Processing tank, 4... Air pipe, 5... Air diffuser,
6...Water quality meter, 7...Bubble generating part, 9...Branch pipe, "W...Sewage. Immediately" To Satobiso's clever tree droppings Figure 1...・Grudge JIX Day 4・・・・・Kenki 1 5・・・Kawashiki Aeration Device 6・・・YKT 17・・・・Yiho Generation Shu 9・・・・・・・・Now the tube W・・・・・・・Nomizu
Claims (1)
て汚水処理を行う回分式活性汚泥法の処理槽内に設置さ
れる気泡洗浄型水質計において、処理槽内のばっ気用散
気装置へ通ずる送気管から水質計の気泡発生部へ通ずる
分岐管を分岐させて水質計の貴方洗浄とばっ気工程を同
期させるようにしたことを特徴とする気泡洗浄型水質計
。In a bubble cleaning type water quality meter installed in a treatment tank of the batch activated sludge method, which processes sewage through aeration, sedimentation, and wastewater treatment processes in a single treatment tank, air diffuser for aeration inside the treatment tank is used. A bubble cleaning type water quality meter characterized in that a branch pipe leading from an air supply pipe leading to the device to a bubble generating part of the water quality meter is branched to synchronize the cleaning and aeration process of the water quality meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62110996A JPS63275948A (en) | 1987-05-07 | 1987-05-07 | Bubble washing type water quality meter for batch type activated sludge process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62110996A JPS63275948A (en) | 1987-05-07 | 1987-05-07 | Bubble washing type water quality meter for batch type activated sludge process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63275948A true JPS63275948A (en) | 1988-11-14 |
Family
ID=14549754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62110996A Pending JPS63275948A (en) | 1987-05-07 | 1987-05-07 | Bubble washing type water quality meter for batch type activated sludge process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63275948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009003800A1 (en) * | 2007-07-02 | 2009-01-08 | Reinhard Boller | Method for determining the amount of oxygen introduced into a process tank of a biological treatment works during a ventilation process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130788A (en) * | 1974-09-09 | 1976-03-16 | Meidensha Electric Mfg Co Ltd | YOZONSANSOKEI |
| JPS6154286A (en) * | 1984-08-24 | 1986-03-18 | Hitachi Plant Eng & Constr Co Ltd | Batch activated-sludge process |
| JPS61120696A (en) * | 1984-11-15 | 1986-06-07 | Unitika Ltd | Treatment of waste water |
-
1987
- 1987-05-07 JP JP62110996A patent/JPS63275948A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130788A (en) * | 1974-09-09 | 1976-03-16 | Meidensha Electric Mfg Co Ltd | YOZONSANSOKEI |
| JPS6154286A (en) * | 1984-08-24 | 1986-03-18 | Hitachi Plant Eng & Constr Co Ltd | Batch activated-sludge process |
| JPS61120696A (en) * | 1984-11-15 | 1986-06-07 | Unitika Ltd | Treatment of waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009003800A1 (en) * | 2007-07-02 | 2009-01-08 | Reinhard Boller | Method for determining the amount of oxygen introduced into a process tank of a biological treatment works during a ventilation process |
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