JPH02237604A - Flocculating and settling device - Google Patents
Flocculating and settling deviceInfo
- Publication number
- JPH02237604A JPH02237604A JP5789889A JP5789889A JPH02237604A JP H02237604 A JPH02237604 A JP H02237604A JP 5789889 A JP5789889 A JP 5789889A JP 5789889 A JP5789889 A JP 5789889A JP H02237604 A JPH02237604 A JP H02237604A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- tank
- coagulation
- sludge
- sedimentation
- 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
- 230000003311 flocculating effect Effects 0.000 title abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 71
- 239000010802 sludge Substances 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 3
- 238000004062 sedimentation Methods 0.000 claims description 38
- 230000000630 rising effect Effects 0.000 claims description 35
- 238000005345 coagulation Methods 0.000 claims description 21
- 230000015271 coagulation Effects 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 10
- 238000005189 flocculation Methods 0.000 abstract description 11
- 230000016615 flocculation Effects 0.000 abstract description 11
- 230000001174 ascending effect Effects 0.000 abstract description 7
- 244000144992 flock Species 0.000 description 6
- 229920000620 organic polymer Polymers 0.000 description 4
- 230000008719 thickening Effects 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、下水，し尿，産業廃水その他の各種懸濁液を
凝集沈殿処理するフロックブランケット型の装置、特に
フロックブランケット層の濃度を准定し、各種運転条件
を適切に変更可能にした凝集沈殿処理装置に関するもの
である．
〔従来の技術〕
凝集沈殿処理装置のうち、特に高性能を示すものとして
特公昭５Ｂ−４３１２５号公報等に示される構造のもの
が知られている．
この凝集沈殿処理装置は、槽体の上部に処理水流出部、
中間部に徘泥口、下部に凝集スラリー流入口を設け、槽
内下方に回転する撹拌翼を配設し、中間部の排泥口より
下部にフロックブランケット層が形成される構造となっ
ており、コンパクトな構造で高速に効果的な射集沈殿処
理を行うことができ、さらにフロックブランケット層の
汚泥スラリーの濃縮槽を隣接させて前記排泥口を連通ず
ることによって、高濃度の排泥が得られる利点を加え、
広く実用に供されている．
そしてこの装置では、凝集スラリーの流入及び槽内での
凝集スラリーの沈殿分離に伴って増加したフロックブラ
ンケット層の汚泥スラリーは、前記排泥口より密度流に
て自然に排泥され、槽内のフロックブランケット層の上
面レベルは常に排泥口のレベルに一定に保たれるように
なっている。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a floc blanket type device for coagulation and sedimentation treatment of sewage, human waste, industrial wastewater, and other various suspensions, and in particular, to a floc blanket type device for determining the concentration of the floc blanket layer. , relates to a coagulation and sedimentation treatment device that allows various operating conditions to be changed appropriately. [Prior Art] Among coagulation-sedimentation treatment apparatuses, one having a structure shown in Japanese Patent Publication No. 5B-43125 and the like is known as one that exhibits particularly high performance. This coagulation sedimentation treatment equipment has a treated water outlet at the top of the tank body,
A floating mud inlet is provided in the middle part, a flocculated slurry inlet is provided in the lower part, and a stirring blade is provided that rotates downward in the tank, so that a floc blanket layer is formed below the mud removal port in the middle part. With its compact structure, it is possible to carry out effective collection and sedimentation treatment at high speed.Furthermore, by placing the thickening tank for the sludge slurry in the floc blanket layer adjacent and communicating the sludge outlet, highly concentrated sludge can be removed. Add the benefits you get,
It is widely used in practical applications. In this device, the sludge slurry in the floc blanket layer that has increased due to the inflow of the flocculated slurry and the sedimentation and separation of the flocculated slurry in the tank is naturally drained by the density flow from the sludge outlet, and The upper surface level of the floc blanket layer is always kept constant at the level of the mud removal port.
ところで前記装置では、流入する凝集スラリー中の凝集
フロックは、ブランケット層を構成するフロックと接触
して沈殿する機構で成立しているため、清澄な処理水を
得、かつ高濃度の排泥を得るためには、フロックブラン
ケット層の汚泥濃度を高濃度に保つことが重要となる。By the way, in the above device, since the flocs in the inflowing flocculated slurry come into contact with the flocs constituting the blanket layer and settle, it is possible to obtain clear treated water and high-concentration waste sludge. Therefore, it is important to maintain a high sludge concentration in the floc blanket layer.
フロックブランケット層の疎密は、フロックブランケッ
ト層の上昇速度の大小となって現れるが、前記構造の装
置ではフロックブランケット層の界面レベルが前述した
如く一定に保たれているため、従来この上昇速度を計測
する方法がなく、フロックブランケット層を高濃度に保
つ効果的な方法がなかった．
本発明は、このようなフロックブランケット層の上昇速
度の検出からその濃度を知ることを可能とし、装置の各
種運転条件を適切に変更し、効率よくかつ経済的な凝集
沈殿処理を達成することができる装置を提供することを
目的としている。The density of the flock blanket layer is reflected in the rising speed of the flock blanket layer, but in the device with the above structure, the interface level of the flock blanket layer is kept constant as described above, so conventionally this rising speed cannot be measured. There was no effective way to maintain a high concentration of the flock blanket layer. The present invention makes it possible to know the concentration of the floc blanket layer by detecting the rising speed of the floc blanket layer, and to appropriately change various operating conditions of the device to achieve efficient and economical flocculation and sedimentation treatment. The purpose is to provide a device that can.
本発明は、上部に処理水流出部、中間部に排泥口、下部
に凝集スラリー流入口を設け、槽内下方部に回転する攪
拌翼を配設した凝集沈殿槽で構成された凝集沈殿処理装
置において、下部が連通し上部が隔壁によって仕切られ
たスラリー下降部とスラリー上昇部を形成し、前記スラ
リー下降部の上部にスラリー流入口を設けると共に、前
記スラリー上昇部に界面検出器を配置し、かつ下部にス
ラリー排出口を設けた上昇速度検出槽を、該槽の前記ス
ラリー流入口が前記凝集沈殿槽の排泥口と同一レベルに
なるように前記凝集沈殿槽内に設置し、下部の前記スラ
リー排出口を前記凝集沈殿槽の外部に連通したことを特
徴とする凝集沈殿処理装置である．
〔作 用〕
処理されるべき原水は、凝集剤が添加されて凝集スラリ
ーとなり、凝集スラリー流入口から槽内下部に流入し、
回転する攪拌翼によって槽内に均等に分配されて均一上
向流となり、排泥口により界面レベルが一定に保持され
たフロックブランケット層を通過し、凝集フロックが沈
殿分離され、清澄な処理水となって上部の処理水流出部
から流出する．
このような凝集沈殿処理中、フロックブランケット層の
汚泥スラリーは、スラリー流入口から上昇速度検出槽内
に流入し、スラリー下降部を下降してスラリー上昇部に
至り、フロックブランケット界面を形成しつつ上昇し、
その界面が界面検出器のレベルに到達するとその位置が
検出される．次に、上昇速度検出槽内の汚泥スラリーを
スラリー排出口から排出して界面を所定のレベルまで下
げて排出を停止すると、再び汚泥スラリーの流入によっ
て界面が上昇し、界面検出器のレベルに到達する．
従って、上昇速度検出槽内における、フロックブランケ
ット界面の前回の検出時刻と今回の検出時刻とから、フ
ロックブランケット層の上昇速度を算出することができ
る．
これにより、フロックブランケット層の濃度を推定する
ことが可能になり、凝集剤添加条件，処理水量，攪拌翼
の回転速度等の各種運転条件を適切に変更してフロック
ブランケット層の濃度を常に高濃度に保つことができ、
効率の良い凝集沈殿処理が達成される。The present invention is a coagulation-sedimentation treatment system consisting of a coagulation-sedimentation tank, which has a treated water outflow section in the upper part, a sludge outlet in the middle part, a coagulation slurry inlet in the lower part, and a rotating stirring blade in the lower part of the tank. In the apparatus, a slurry descending part and a slurry rising part are formed, the lower part of which is in communication and the upper part is partitioned by a partition, a slurry inlet is provided in the upper part of the slurry descending part, and an interface detector is disposed in the slurry rising part. , and a rising speed detection tank provided with a slurry discharge port at the bottom is installed in the coagulation and sedimentation tank so that the slurry inlet of the tank is at the same level as the sludge drainage port of the coagulation and sedimentation tank, and The coagulation-sedimentation treatment apparatus is characterized in that the slurry discharge port is connected to the outside of the coagulation-sedimentation tank. [Function] The raw water to be treated becomes a flocculating slurry by adding a flocculant, and flows into the lower part of the tank from the flocculating slurry inlet.
The rotating stirring blades evenly distribute the flow inside the tank, creating a uniform upward flow, which passes through the floc blanket layer whose interface level is kept constant by the mud removal port, where the flocs settle and separate, forming clear treated water. The treated water then flows out from the upper treated water outlet. During such coagulation and sedimentation treatment, the sludge slurry in the floc blanket layer flows into the rising speed detection tank from the slurry inlet, descends through the slurry descending section, reaches the slurry ascending section, and rises while forming a floc blanket interface. death,
When the interface reaches the level of the interface detector, its position is detected. Next, the sludge slurry in the rising speed detection tank is discharged from the slurry discharge port to lower the interface to a predetermined level and the discharge is stopped.The interface rises again due to the inflow of sludge slurry and reaches the level of the interface detector. do. Therefore, the rising speed of the floc blanket layer can be calculated from the previous detection time and the current detection time of the floc blanket interface in the rising speed detection tank. This makes it possible to estimate the concentration of the floc blanket layer, and by appropriately changing various operating conditions such as coagulant addition conditions, amount of water to be treated, and rotational speed of the stirring blade, the concentration of the floc blanket layer can be maintained at a consistently high concentration. can be kept,
Efficient coagulation and precipitation treatment is achieved.
本発明の一実施例を図面を参照しながら説明すれば、１
は凝集沈殿槽で、この凝集沈殿槽１の下方部は下方に向
けて断面積が小さくなる形状になっている．凝集沈殿槽
１の上部には処理水流出部２が設けられ、凝集沈殿槽１
の中間部には排泥口３が設けられ、凝集沈殿槽１の下端
には凝集スラリー流人口４が設けられ、さらに凝集沈殿
槽１内の下方には回転する攬拌翼５が配設されている．
また、凝集沈殿槽１の中間部の排泥口３は、隣接して設
置された？７４’ｍ槽６に連通され、凝集沈殿槽１の下
端の凝集スラリー流入口４は、原水が流人し無機凝集剤
７が添加されろう流式の混和槽８と連通管９にて連通さ
れ、連通管９の途中で有機高分子凝集剤１０が添加され
るようになっている。One embodiment of the present invention will be described with reference to the drawings.
is a coagulation sedimentation tank, and the lower part of this coagulation sedimentation tank 1 has a shape in which the cross-sectional area becomes smaller toward the bottom. A treated water outflow part 2 is provided in the upper part of the coagulation sedimentation tank 1.
A slurry drainage port 3 is provided in the middle part of the tank 1, a flocculating slurry flow port 4 is provided at the lower end of the coagulation sedimentation tank 1, and a rotating stirring blade 5 is provided in the lower part of the coagulation sedimentation tank 1. ing.
Also, was the sludge drainage port 3 in the middle of the flocculation and sedimentation tank 1 installed adjacent to it? The flocculating slurry inlet 4 at the lower end of the flocculation-sedimentation tank 1 is connected to the 74'm tank 6, and the flocculation slurry inlet 4 at the lower end of the flocculation-sedimentation tank 1 is connected to a wax flow type mixing tank 8 through a communication pipe 9, where the raw water flows and an inorganic flocculant 7 is added. , an organic polymer flocculant 10 is added in the middle of the communication pipe 9.
さらに凝集沈殿槽１内には上昇速度検出槽１１が設置さ
れるが、この上昇速度検出槽１１は、第２図に示すよう
に、下部が連通し上部が垂直な隔壁１２によって仕切ら
れたスラリー下降部１３とスラリー上昇部１４が形成さ
れ、スラリー下降部１３の上部にはスラリー流入口Ｉ５
が設けられ、スラリー上昇部１４内の所定位置には界面
検出器１６が配置されている．また、上昇速度検出槽１
１の下端にはスラリー排出口１７が設けられ、自動弁ｌ
８を介して濃縮槽６内に連なっている。これらの界面検
出器１６と自動弁１８とは、図示しない制御装置に電気
的に接続され、適宜連動される．この上昇速度検出槽１
１は、そのスラリー流人口１５が凝集沈殿Ｐ！！１の排
泥口３と同一レベルになるように設置される．
図中、Ｂは凝集沈殿槽１内に形成されるフロックブラン
ケット層を示す．
しかして、図示しないボンブ等により原水は混和槽８に
送られ、ここで無機凝集剤７が添加され、混和槽８を通
過する間に凝集反応が進行する。混和槽８からの流出液
には有機高分子凝集剤１０が添加され、この凝集スラリ
ーは直ちに凝集沈殿槽１の下端の凝集スラリー流人口４
から槽内に流入する．これらの凝集剤は、該原水の処理
に最も適したものが選定される．
凝集沈殿槽ｌ内は、回転する攪拌翼５によりゆるやかに
攪拌されており、槽内には凝集スラリーによるフロック
ブランケット層Ｂが形成されている．流入した凝集スラ
リーは、回転する攪拌翼５によって均一にフロックブラ
ンケット層Ｂ内を上昇する間に、凝集フロックを沈殿分
離し、清澄な処理水となって上部の処理水流出部２より
槽外に流出する．この時、フロックブランケット層Ｂの
界面は、凝集スラリーの沈殿分離に伴って上昇するが、
中間部に設けられた排泥口３を越える余剰分の汚泥スラ
リーは、排泥口３から濃縮槽６へ流入し、ここで一定時
間の貯留により濃縮されたのち、ポンプ等の手段により
排泥される。Furthermore, a rising speed detection tank 11 is installed in the coagulation-sedimentation tank 1, and as shown in FIG. A descending part 13 and a slurry rising part 14 are formed, and a slurry inlet I5 is formed in the upper part of the slurry descending part 13.
An interface detector 16 is disposed at a predetermined position within the slurry rising section 14. In addition, the rising speed detection tank 1
A slurry discharge port 17 is provided at the lower end of 1, and an automatic valve l
8 into the concentration tank 6. These interface detector 16 and automatic valve 18 are electrically connected to a control device (not shown) and are appropriately linked. This rising speed detection tank 1
1, the slurry flow rate 15 is coagulated and precipitated P! ! It is installed so that it is on the same level as mud drain port 3 in 1. In the figure, B indicates the floc blanket layer formed in the coagulation sedimentation tank 1. The raw water is then sent to a mixing tank 8 by a bomb (not shown), where an inorganic flocculant 7 is added, and a flocculation reaction proceeds while passing through the mixing tank 8. An organic polymer flocculant 10 is added to the effluent from the mixing tank 8, and this flocculated slurry is immediately transferred to the flocculated slurry flow rate 4 at the lower end of the flocculation-sedimentation tank 1.
It flows into the tank from These flocculants are selected to be most suitable for the treatment of the raw water. The interior of the flocculation and sedimentation tank 1 is gently stirred by a rotating stirring blade 5, and a flocculation blanket layer B is formed by the flocculation slurry inside the tank. The inflowing flocculated slurry is uniformly raised in the floc blanket layer B by the rotating stirring blades 5, and the flocs are precipitated and separated, becoming clear treated water and flowing out of the tank from the treated water outflow section 2 at the top. leak. At this time, the interface of the floc blanket layer B rises as the flocculated slurry settles and separates, but
The excess sludge slurry that exceeds the sludge drain port 3 provided in the middle part flows from the sludge port 3 into the thickening tank 6, where it is concentrated by being stored for a certain period of time, and then drained by means such as a pump. be done.
また、前記フロックブランケット層Ｂの余剰分の汚泥ス
ラリーは、排泥口３からの流出と同時に、これと同一レ
ベルのスラリー流人口１５から上昇速度検出槽ｌ１のス
ラリー下降部１３に入り、隔壁１２をくぐってスラリー
上昇部１４に至り、フロックブランケット界面を形成し
つつ上昇し、界面が界面検出器１６のレベルに到達する
と、その位置が検出される。そして、界面検出器１６か
らの検出信号は、図示しない制御装置に送られ、該制御
装置からの制御信号により、自動弁１８を開いて上昇速
度検出槽ｌｌ内のスラリーが濃縮槽６へ排出される．排
出が終わった段階では、上昇速度検出槽ＩＩ内の界面を
、第３図ｆａ＋におけるレベル八の位置とし、再びフロ
ックブランケット層Ｂの汚泥スラリーの流入により、界
面が上昇して第３図山）のレベルＢ（界面検出器１６の
取付けレベル）に達する．これら両レベルＡ，Ｂ間の距
離は明らかであるので、前回界面を検出した時刻，上昇
速度検出槽１１内の排泥に要した時間，今回界面を検出
した時刻とから、界面レベルＡからレベルＢまで上昇す
るに要する時間が求められ、該時間と前記レベルＡ，
Ｂ間の距離とから、上昇速度検出槽ｌｌ内の界面の上昇
速度を算出することができる．
上昇速度検出槽ｌｌ内の界面上昇速度と凝集沈殿槽１内
のフロックブランケット層Ｂの界面の上昇速度とは、明
瞭な相関関係を有するので、上昇速度検出槽１１内の界
面上昇速度から、凝集沈殿槽１内のフロックブランケッ
ト層Ｂの上昇速度を求めることが可能になる。これによ
りフロンクプランケフト層Ｂの濃度を推定することが可
能となり、無機ａ集剤７及び有機高分子凝集剤１０の添
加条件．処理水量，攬拌翼５の回転速度などの各種運転
条件を適切に変更し、常に高濃度のフロックブランケッ
ト層Ｂを保持し、効率よい凝集沈殿処理を達成すること
ができる。Further, at the same time as the surplus sludge slurry of the floc blanket layer B flows out from the sludge discharge port 3, it enters the slurry descending section 13 of the rising speed detection tank l1 from the slurry flow rate 15 at the same level, and enters the slurry descending section 13 of the rising speed detection tank l1. The slurry passes through and reaches the slurry rising part 14, rises while forming a flock blanket interface, and when the interface reaches the level of the interface detector 16, its position is detected. The detection signal from the interface detector 16 is sent to a control device (not shown), and the control signal from the control device opens the automatic valve 18 to discharge the slurry in the rising speed detection tank 11 to the concentration tank 6. Ru. At the stage when the discharge is finished, the interface in the rising speed detection tank II is at the level 8 position in Figure 3 fa+, and the interface rises again due to the inflow of the sludge slurry of the floc blanket layer B (Figure 3). level B (the installation level of the interface detector 16). Since the distance between these two levels A and B is clear, from the time when the interface was detected last time, the time required to drain the mud in the rising speed detection tank 11, and the time when the interface was detected this time, it is possible to determine the level from interface level A to level B. The time required to rise to level B is calculated, and the time and the level A,
From the distance between B and B, the rising speed of the interface in the rising speed detection tank 11 can be calculated. There is a clear correlation between the interface rising speed in the rising speed detection tank 11 and the rising speed of the interface of the floc blanket layer B in the flocculation sedimentation tank 1. It becomes possible to determine the rate of rise of the floc blanket layer B in the settling tank 1. This makes it possible to estimate the concentration of the Fronck-Plankeft layer B, and determine the addition conditions of the inorganic a-collecting agent 7 and the organic polymer flocculant 10. By appropriately changing various operating conditions such as the amount of water to be treated and the rotational speed of the stirring blade 5, it is possible to maintain a highly concentrated floc blanket layer B at all times and achieve efficient coagulation and sedimentation treatment.
また、上昇速度検出槽１１内の界．面上昇速度の演算値
をコンピュータなどの適切な演算制御装置に送信するこ
とで、前記各種運転条件を自動制御することが可能にな
る．
なお、上昇速度検出槽１１からの排泥は、図示例のよう
に自動弁１８に限らず、ポンプ等の手段を用いても良く
、上昇速度検出槽１１は、スラリー下降部１３よりスラ
リー上昇部１４の高さを高くし、上昇速度検出槽ｌ１か
らの排泥により、凝集沈殿槽１内の上方部の清澄水が流
入置換する構造としておくと良く、上昇速度槍出槽１１
の高さ及び界面検出器１６の取付け位置は、必要に応じ
て適宜定める。Also, the field inside the rising speed detection tank 11. By transmitting the calculated value of the surface elevation speed to an appropriate arithmetic and control device such as a computer, it becomes possible to automatically control the various operating conditions mentioned above. Note that the removal of sludge from the rising speed detection tank 11 is not limited to the automatic valve 18 as shown in the illustrated example, but means such as a pump may also be used. It is preferable to increase the height of the rising speed detection tank 14 so that clear water in the upper part of the coagulation and sedimentation tank 1 flows in and replaces it by draining mud from the rising speed detection tank l1.
The height of the interface detector 16 and the mounting position of the interface detector 16 are determined as necessary.
以上述べたように本発明によれば、従来知ることができ
なかった凝集沈殿槽内のフロンクブランケット層の上昇
速度を検出することができ、これによってフロックブラ
ンケット層の濃度を推定することが可能となるため、各
種運転条件を適切に変更することによってフロックブラ
ンケット層の濃度を常に高濃度に保持し、効率の良い経
済的な凝集沈殿処理を達成することができる．As described above, according to the present invention, it is possible to detect the rate of rise of the floc blanket layer in the flocculation sedimentation tank, which was previously impossible to know, and from this it is possible to estimate the concentration of the floc blanket layer. Therefore, by appropriately changing various operating conditions, it is possible to maintain a high concentration in the floc blanket layer and achieve efficient and economical coagulation and sedimentation treatment.
図面は本発明の一実施例を示し、第１図は全体の縦断面
図、第２図は要部の拡大斜視図、第３図ｔａｇ， （ｂ
ｌは要部の作用説明図である。
１・・・凝集沈殿槽、２・・・処理水流出部、３・・・
排泥口、４・・・凝集スラリー流入口、５・・・攪拌翼
、６・・・濃縮槽、７・・・無機凝集剤、８・・・混和
槽、９・・・連通管、１０・・・有機高分子凝集荊、１
１・・・上昇速度検出槽、１２・・・隔壁、１３・・・
スラリー下降部、１４・・・スラリー上昇部、１５・・
・スラリー流入口、１６・・・界面検出器、ｌ７・・・
スラリー排出口、１８・・・自動弁、Ｂ・・・フロック
ブランケット層。The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view of the whole, FIG. 2 is an enlarged perspective view of the main part, and FIG.
1 is an explanatory diagram of the operation of the main part. 1... Coagulation sedimentation tank, 2... Treated water outflow section, 3...
Sludge removal port, 4... Agglomerated slurry inlet, 5... Stirring blade, 6... Thickening tank, 7... Inorganic flocculant, 8... Mixing tank, 9... Communication pipe, 10 ...Organic polymer agglomeration, 1
1... Rising speed detection tank, 12... Bulkhead, 13...
Slurry descending section, 14...Slurry rising section, 15...
・Slurry inlet, 16...interface detector, l7...
Slurry discharge port, 18... automatic valve, B... flock blanket layer.
Claims (1)
集スラリー流入口を設け、槽内下方部に回転する攪拌翼
を配設した凝集沈殿槽で構成された凝集沈殿処理装置に
おいて、下部が連通し上部が隔壁によって仕切られたス
ラリー下降部とスラリー上昇部を形成し、前記スラリー
下降部の上部にスラリー流入口を設けると共に、前記ス
ラリー上昇部に界面検出器を配置し、かつ下部にスラリ
ー排出口を設けた上昇速度検出槽を、該槽の前記スラリ
ー流入口が前記凝集沈殿槽の排泥口と同一レベルになる
ように前記凝集沈殿槽内に設置し、下部の前記スラリー
排出口を前記凝集沈殿槽の外部に連通したことを特徴と
する凝集沈殿処理装置。(1) A coagulation-sedimentation treatment device consisting of a coagulation-sedimentation tank with a treated water outlet at the top, a sludge outlet at the middle, a coagulation slurry inlet at the bottom, and a rotating stirring blade at the bottom of the tank. forming a slurry descending part and a slurry rising part whose lower parts are in communication and whose upper parts are partitioned by a partition, a slurry inlet is provided in the upper part of the slurry descending part, and an interface detector is disposed in the slurry rising part, A rising speed detection tank having a slurry discharge port at the bottom is installed in the coagulation and sedimentation tank so that the slurry inlet of the tank is at the same level as the slurry drainage port of the coagulation and sedimentation tank, and A coagulation-sedimentation treatment apparatus, characterized in that a slurry discharge port is communicated with the outside of the coagulation-sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5789889A JPH02237604A (en) | 1989-03-13 | 1989-03-13 | Flocculating and settling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5789889A JPH02237604A (en) | 1989-03-13 | 1989-03-13 | Flocculating and settling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02237604A true JPH02237604A (en) | 1990-09-20 |
| JPH0426881B2 JPH0426881B2 (en) | 1992-05-08 |
Family
ID=13068808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5789889A Granted JPH02237604A (en) | 1989-03-13 | 1989-03-13 | Flocculating and settling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02237604A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999058456A1 (en) * | 1998-05-08 | 1999-11-18 | Organo Corporation | Coagulator |
| WO2013111845A1 (en) * | 2012-01-26 | 2013-08-01 | 住友金属鉱山株式会社 | Thickener device in ore slurry manufacturing process and operation management method using same |
| JP2018153772A (en) * | 2017-03-21 | 2018-10-04 | オルガノ株式会社 | Sludge blanket type coagulating sedimentation apparatus and method of operating sludge blanket type coagulating sedimentation apparatus |
| JP2018161635A (en) * | 2017-03-27 | 2018-10-18 | 住友重機械エンバイロメント株式会社 | Flocculation and sedimentation treatment apparatus |
| JP2019155285A (en) * | 2018-03-13 | 2019-09-19 | 住友重機械エンバイロメント株式会社 | Solid/liquid separation apparatus |
| JP2020157248A (en) * | 2019-03-27 | 2020-10-01 | 住友重機械エンバイロメント株式会社 | Flocculating sedimentation treating equipment and operation method of flocculating sedimentation treating equipment |
| JP2023076228A (en) * | 2021-11-22 | 2023-06-01 | 日鉄環境株式会社 | Coagulation-sedimentation treatment method, water treatment method, coagulation-sedimentation device, and water treatment device |
-
1989
- 1989-03-13 JP JP5789889A patent/JPH02237604A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999058456A1 (en) * | 1998-05-08 | 1999-11-18 | Organo Corporation | Coagulator |
| WO2013111845A1 (en) * | 2012-01-26 | 2013-08-01 | 住友金属鉱山株式会社 | Thickener device in ore slurry manufacturing process and operation management method using same |
| JP2018153772A (en) * | 2017-03-21 | 2018-10-04 | オルガノ株式会社 | Sludge blanket type coagulating sedimentation apparatus and method of operating sludge blanket type coagulating sedimentation apparatus |
| JP2018161635A (en) * | 2017-03-27 | 2018-10-18 | 住友重機械エンバイロメント株式会社 | Flocculation and sedimentation treatment apparatus |
| JP2019155285A (en) * | 2018-03-13 | 2019-09-19 | 住友重機械エンバイロメント株式会社 | Solid/liquid separation apparatus |
| JP2020157248A (en) * | 2019-03-27 | 2020-10-01 | 住友重機械エンバイロメント株式会社 | Flocculating sedimentation treating equipment and operation method of flocculating sedimentation treating equipment |
| JP2023076228A (en) * | 2021-11-22 | 2023-06-01 | 日鉄環境株式会社 | Coagulation-sedimentation treatment method, water treatment method, coagulation-sedimentation device, and water treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426881B2 (en) | 1992-05-08 |
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