JPH10202009A - Coagulation sedimentation equipment - Google Patents
Coagulation sedimentation equipmentInfo
- Publication number
- JPH10202009A JPH10202009A JP9006440A JP644097A JPH10202009A JP H10202009 A JPH10202009 A JP H10202009A JP 9006440 A JP9006440 A JP 9006440A JP 644097 A JP644097 A JP 644097A JP H10202009 A JPH10202009 A JP H10202009A
- Authority
- JP
- Japan
- Prior art keywords
- rake
- distributor
- sludge
- raw water
- settling tank
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
(57)【要約】
【課題】 構造が簡易で安価に提供され、保守管理も容
易なスラッジブランケット型凝集沈殿装置を提供する。
【解決手段】 沈降槽１内の底部にレーキ２を回転可能
に設け、このレーキ２の直上にディストリビュータ６Ａ
を一体的かつ回転可能に設けた凝集沈殿装置。
【効果】 ディストリビュータ６Ａをレーキ２と一体化
してレーキの直上に設けるため、汚泥ゾーンＳの高さを
低くすることができる。ディストリビュータ６Ａとレー
キ２とを一体化して同時に回転させることで、ターンバ
ックルやレーキ回転用シャフト等のレーキ取付及び回転
のための部材が不要となり、構造が簡単で安価になる。
ディストリビュータ６Ａの設置位置を低くすることで、
沈降槽１の高さも低くでき、装置の小型化を図れる。
PROBLEM TO BE SOLVED: To provide a sludge blanket type coagulation and sedimentation apparatus which has a simple structure, is provided at low cost, and is easy to maintain. SOLUTION: A rake 2 is rotatably provided at the bottom in a settling tank 1, and a distributor 6A is provided directly above the rake 2.
A coagulating sedimentation device provided integrally and rotatably. [Effect] Since the distributor 6A is integrated with the rake 2 and provided immediately above the rake, the height of the sludge zone S can be reduced. By integrating the distributor 6A and the rake 2 and rotating them at the same time, members for mounting and rotating the rake such as a turnbuckle and a rake rotating shaft are not required, and the structure is simple and inexpensive.
By lowering the installation position of distributor 6A,
The height of the settling tank 1 can be reduced, and the size of the apparatus can be reduced.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は凝集沈殿装置に係
り、特に、スラッジブランケット型の凝集沈殿装置にお
いて、ディストリビュータ等の原水供給部材とレーキ等
の集泥部材とを一体化することにより、構造を簡単にし
て建設コストを下げると共に、汚泥ゾーンの維持管理を
容易にした凝集沈殿装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coagulation and sedimentation apparatus, and more particularly, to a sludge blanket type coagulation and sedimentation apparatus, in which a raw water supply member such as a distributor and a mud collecting member such as a lake are integrated to form a structure. The present invention relates to a coagulation and sedimentation apparatus which is simple and reduces construction costs and facilitates maintenance and management of a sludge zone.
【０００２】[0002]
【従来の技術】従来のスラッジブランケット型の凝集沈
殿装置の構造を図２を参照して説明する。図２（ａ）は
概略的な縦断面図、図２（ｂ）は図２（ａ）のＢ−Ｂ線
に沿う断面図である。なお、図２（ｂ）におけるレーキ
２は、図２（ａ）におけるレーキ２の位置から若干ずれ
た位置に示されている。2. Description of the Related Art The structure of a conventional sludge blanket type coagulation and sedimentation apparatus will be described with reference to FIG. FIG. 2A is a schematic longitudinal sectional view, and FIG. 2B is a sectional view taken along line BB of FIG. 2A. The rake 2 in FIG. 2B is shown at a position slightly deviated from the position of the rake 2 in FIG.
【０００３】沈降槽（シックナ）１の底部は、底面中央
に向って下り勾配となる錐形状となっており、この底部
中央に排泥管（図示略）が接続されている。The bottom of the settling tank (thickener) 1 has a conical shape having a downward slope toward the center of the bottom surface, and a drain pipe (not shown) is connected to the center of the bottom.
【０００４】この底部に沿って旋回可能にレーキ２が設
けられており、該レーキ２の駆動用のシャフト３が鉛直
上方に立ち上げられ、モータ４に連結されている。この
従来例にあっては、レーキ２は、長さの異なるロングア
ーム２Ａとショートアーム２Ｂとが、シャフト３から４
方向に放射状に設けられている。A rake 2 is provided rotatably along the bottom, and a drive shaft 3 of the rake 2 is raised vertically upward and connected to a motor 4. In this conventional example, the rake 2 has a long arm 2A and a short arm 2B having different lengths.
It is provided radially in the direction.
【０００５】このシャフト３と同軸的に回転可能に筒状
カラム５が配置され、このカラム５の下端部にディスト
リビュータ６が設けられている。この従来例にあって
は、ディストリビュータ６はカラム５から４方向に放射
状に延設された管状体にて構成されており、該ディスト
リビュータ６の下面に複数個の原水流出口７が設けられ
ている。８は、ディストリビュータ駆動部である。[0005] A cylindrical column 5 is arranged rotatably coaxially with the shaft 3, and a distributor 6 is provided at the lower end of the column 5. In this conventional example, the distributor 6 is formed of a tubular body radially extending from the column 5 in four directions, and a plurality of raw water outlets 7 are provided on the lower surface of the distributor 6. . Reference numeral 8 denotes a distributor driving unit.
【０００６】ディストリビュータ６の下方に該ディスト
リビュータ６と同期して回転する邪魔板９が設けられて
おり、流出口７から下向きに流出した原水が該邪魔板９
によって水平方向に流れ方向を変えるよう構成されてい
る。A baffle plate 9 which rotates in synchronization with the distributor 6 is provided below the distributor 6, and raw water flowing downward from the outlet 7 is supplied to the baffle plate 9.
To change the flow direction in the horizontal direction.
【０００７】このような凝集沈殿装置にあっては、凝集
剤が添加された原水は、前記カラム５内に供給され、デ
ィストリビュータ６の下面の流出口７から流出し、水平
方向に流れの向きを変えて汚泥ゾーンＳ内に供給され
る。ディストリビュータ６及びレーキ２がモータ４によ
ってゆっくりと回転されることにより沈降槽１内の液が
ゆっくりと撹拌され、フロックの生成及び成長が促進さ
れる。生じたフロックは、沈降槽１内を沈降し、レーキ
２によって中央に集められ、図示しない排泥管より槽外
に排出される。清澄水は溢流部１０をオーバーフロー
し、流出部１１から処理水として取り出される。In such a coagulating sedimentation apparatus, the raw water to which the coagulant has been added is supplied into the column 5 and flows out of the outlet 7 on the lower surface of the distributor 6 to change the flow direction in the horizontal direction. Alternately, it is supplied into the sludge zone S. When the distributor 6 and the rake 2 are slowly rotated by the motor 4, the liquid in the settling tank 1 is slowly stirred, and the generation and growth of flocs are promoted. The generated flocks settle down in the settling tank 1, are collected at the center by the rake 2, and are discharged out of the tank through a drain pipe (not shown). The clarified water overflows the overflow section 10 and is taken out from the outflow section 11 as treated water.
【０００８】このディストリビュータ６は沈降槽１内に
原水を均一に分散供給するための部材であり、レーキ２
は沈殿した汚泥をレーキアクション効果を利用して濃縮
しながら排泥するための部材である。従来においては、
汚泥ゾーンＳの高さが高いほど水圧が高くなり、この汚
泥の濃縮効率が高くなるという発想のもとに、ディスト
リビュータ６とレーキ２との高さ方向の間隔を大きくと
り、大きな静置汚泥ゾーンを確保している。[0008] The distributor 6 is a member for uniformly distributing and supplying raw water into the settling tank 1.
Is a member for discharging sludge while concentrating the settled sludge using the lake action effect. Conventionally,
Based on the idea that the higher the height of the sludge zone S is, the higher the water pressure is, and the higher the concentration efficiency of this sludge is, the greater the distance between the distributor 6 and the rake 2 in the height direction, the larger the stationary sludge zone. Is secured.
【０００９】なお、ディストリビュータ６とレーキ２と
は、各々異なる速度で旋回させても良く、同一速度で旋
回させても良い。The distributor 6 and the rake 2 may turn at different speeds, or may turn at the same speed.
【００１０】図３（ｂ）は従来の凝集沈殿装置における
原水の分散供給機構を示す模式的な断面図であり、従来
においては、汚泥ゾーンＳの界面ＳＡをディストリビュ
ータ６の上層に設定することで、汚泥ゾーンＳによる濾
過作用により、高ＬＶで通水しても処理水側に微細なＳ
Ｓをリークさせることなく、清澄な処理水を得ることが
できる。FIG. 3 (b) is a schematic cross-sectional view showing a mechanism for dispersing and supplying raw water in a conventional coagulation and sedimentation apparatus. In the prior art, the interface SA of the sludge zone S is set in the upper layer of the distributor 6. , Due to the filtration action of the sludge zone S, the fine S
Clear treated water can be obtained without causing S to leak.
【００１１】このディストリビュータ６の原水流出口７
は、ディストリビュータ６内における原水ＳＳの沈積に
よる閉塞を防止するため、原水の流出方向が下向きとな
るようにディストリビュータ６の下面に設けられてい
る。Ｒはディストリビュータ６の旋回方向を示し、太矢
印は汚泥の流動方向、細矢印は原水の流動方向を示す。
ＳＡは汚泥ゾーンＳの界面を示す。なお、原水流によっ
て汚泥ゾーンＳが流動化して膨張することを抑えるため
に、邪魔板９が設けられている。The raw water outlet 7 of the distributor 6
Is provided on the lower surface of the distributor 6 so that the outflow direction of the raw water is downward, in order to prevent the raw water SS from being blocked by the deposition of the raw water SS in the distributor 6. R indicates the turning direction of the distributor 6, the thick arrow indicates the flow direction of the sludge, and the thin arrow indicates the flow direction of the raw water.
SA indicates the interface of the sludge zone S. Note that a baffle plate 9 is provided to suppress the sludge zone S from being fluidized and expanded by the raw water flow.
【００１２】[0012]
【発明が解決しようとする課題】上記従来の凝集沈殿装
置では、次のような問題があった。The above-mentioned conventional coagulation and sedimentation apparatus has the following problems.
【００１３】即ち、汚泥の濃縮効率の面からは、汚泥ゾ
ーンＳの高さが高いほど良いと考えられており、このた
め、ディストリビュータ６とレーキ２との高さ方向の間
隔を大きくとり、汚泥ゾーンＳを大きくとっていたが、
数々の実機運転による結果から、このような構成では、
汚泥の濃縮は図れないことが判明した。しかも、このよ
うに、汚泥ゾーンＳを大きくとるために、沈降槽１内に
多量の汚泥を貯留すると、汚泥の凝集性が悪化したり、
流入水量の増大が生じたりした場合、汚泥ゾーンＳは急
速に膨張し、処理水と共にＳＳが流出する。That is, from the viewpoint of the sludge concentration efficiency, it is considered that the higher the height of the sludge zone S, the better. Therefore, the distance between the distributor 6 and the rake 2 in the height direction is increased, and the sludge is increased. The zone S was large,
From the results of numerous actual machine operations, in such a configuration,
It turned out that sludge could not be concentrated. Moreover, when a large amount of sludge is stored in the settling tank 1 in order to make the sludge zone S large, the cohesiveness of the sludge deteriorates,
When the amount of inflow water increases, the sludge zone S expands rapidly, and SS flows out together with the treated water.
【００１４】しかも、汚泥ゾーンＳを大きくとること
は、沈降槽１の高さの増大につながり、装置が大型化
し、好ましくない。Furthermore, increasing the size of the sludge zone S leads to an increase in the height of the settling tank 1, which results in an increase in the size of the apparatus.
【００１５】また、従来においては、ディストリビュー
タ６とレーキ２とが別体となっているため、ディストリ
ビュータの取付部材及び回転駆動機構の他、レーキの取
付部材（ターンバックル）や回転用シャフトが必要とな
り、構造が複雑となって、設備コストの高騰、保守管理
の煩雑化につながる。In the prior art, since the distributor 6 and the rake 2 are separate bodies, a rake mounting member (turnbuckle) and a rotating shaft are required in addition to the distributor mounting member and the rotation drive mechanism. In addition, the structure becomes complicated, which leads to a rise in equipment costs and complicated maintenance.
【００１６】ところで、図３（ｂ）に示す如く、ディス
トリビュータ６の下面に原水流出口７を設け、これに対
面するように邪魔板９を設けた従来の原水の分散供給方
法では、邪魔板９による反転流が汚泥を膨張させ、これ
が汚泥ゾーンＳの流動化を促進させることが、安定運転
を阻害する原因となっている。As shown in FIG. 3 (b), in the conventional method for distributing and supplying raw water, a raw water outlet 7 is provided on the lower surface of the distributor 6 and a baffle plate 9 is provided so as to face the raw water outlet 7. The reverse flow caused by the expansion of the sludge, which promotes the fluidization of the sludge zone S, is a cause of impeding stable operation.
【００１７】本発明は上記従来の問題点を解決し、構造
が簡易で安価に提供され、保守管理も容易なスラッジブ
ランケット型凝集沈殿装置を提供することを目的とす
る。An object of the present invention is to provide a sludge blanket type coagulating sedimentation apparatus which solves the above-mentioned conventional problems, has a simple structure, is provided at low cost, and is easy to maintain.
【００１８】[0018]
【課題を解決するための手段】本発明の凝集沈殿装置
は、沈降槽内の底部に集泥部材を回転可能に設けたスラ
ッジブランケット型の凝集沈殿装置において、該集泥部
材の直上に原水供給部材を該集泥部材と一体的に回転可
能に設けたことを特徴とする。According to the present invention, there is provided a coagulating sedimentation apparatus of a sludge blanket type in which a sludge collecting member is rotatably provided at the bottom of a sedimentation tank. The member is provided so as to be rotatable integrally with the mud collecting member.
【００１９】前述の如く、汚泥ゾーンを大きくしても、
汚泥の濃縮効率は高められず、安定運転の面からは汚泥
ゾーンの高さは低くする方が有利である。As described above, even if the sludge zone is enlarged,
Sludge concentration efficiency cannot be increased, and it is advantageous to lower the height of the sludge zone from the viewpoint of stable operation.
【００２０】本発明の凝集沈殿装置では、沈降槽内の底
部に設けた集泥部材（例えばレーキ）の直上に一体的に
原水供給部材（例えばディストリビュータ）を設けるた
め、従来に比べてディストリビュータ等の原水供給部材
の設置位置が低くなり、従って、汚泥ゾーンを低くする
ことができる。即ち、原水の濾過作用に必要な汚泥ゾー
ンはディストリビュータ等の設置位置のわずか上方まで
であり、ディストリビュータ等よりも１０〜５０ｃｍ程
度上方に汚泥ゾーンの界面が位置すれば、十分な濾過作
用を得ることができる。本発明では、ディストリビュー
タ等の原水供給部材とレーキ等の集泥部材とを一体化し
て集泥部材の直上に設けるため、汚泥ゾーンの高さを低
くすることができる。In the coagulating sedimentation apparatus of the present invention, a raw water supply member (eg, a distributor) is integrally provided immediately above a mud collecting member (eg, a rake) provided at the bottom of the settling tank. The installation position of the raw water supply member is lowered, and therefore, the sludge zone can be lowered. That is, the sludge zone required for the filtration of raw water is slightly above the installation position of the distributor, etc., and if the interface of the sludge zone is located about 10 to 50 cm above the distributor, etc., a sufficient filtration action can be obtained. Can be. In the present invention, since the raw water supply member such as the distributor and the sludge collecting member such as the rake are integrated and provided immediately above the sludge collecting member, the height of the sludge zone can be reduced.
【００２１】また、原水供給部材の設置位置を低くする
ことで、沈降槽の高さも低くでき、装置の小型化を図る
ことができる。Also, by lowering the installation position of the raw water supply member, the height of the settling tank can be reduced, and the size of the apparatus can be reduced.
【００２２】[0022]
【発明の実施の形態】以下図面を参照して本発明の実施
の形態を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２３】図１（ａ）は本発明の実施の形態に係る凝
集沈殿装置の概略的な縦断面図であり、図１（ｂ）は図
１（ａ）のＢ−Ｂ線に沿う断面図である。FIG. 1A is a schematic longitudinal sectional view of a coagulating and sedimenting apparatus according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along the line BB of FIG. 1A. It is.
【００２４】図１（ａ），（ｂ）の従来例と同様に、沈
降槽（シックナ）１の底面に沿って回転可能にレーキ２
が設けられ、このレーキ２（ロングアーム２Ａ，ショー
トアーム２Ｂ）と一体にディストリビュータ６Ａが設け
られている。このディストリビュータ６Ａは、カラム５
の下端から放射４方向に延設された管状体よりなり、こ
の管状体よりなるディストリビュータ６Ａの側面（ただ
し、ディストリビュータ６Ａの矢印Ｒで示す回転方向Ｒ
の後流側）に原水流出口７Ａが設けられている。また、
このディストリビュータ６Ａの上部には、回転方向の後
流側に向って延びるように整流板１２が溶接等により固
定設置されている。As in the conventional example shown in FIGS. 1A and 1B, the rake 2 is rotatable along the bottom of the settling tank (thickener) 1.
Is provided, and a distributor 6A is provided integrally with the rake 2 (long arm 2A, short arm 2B). This distributor 6A has a column 5
Of the distributor 6A made of a tubular body extending from the lower end of the distributor in the four directions of radiation (however, a rotational direction R indicated by an arrow R of the distributor 6A).
The raw water outlet 7A is provided at the downstream side of the raw water. Also,
A current plate 12 is fixedly installed on the upper portion of the distributor 6A by welding or the like so as to extend toward the downstream side in the rotational direction.
【００２５】カラム５の上部はディストリビュータ駆動
部８を介してモータ４に連結されており、レーキ２及び
ディストリビュータ６Ａがモータ４及びディストリビュ
ータ駆動部８によって一体にゆっくりと回転される。The upper part of the column 5 is connected to the motor 4 via a distributor driving unit 8, and the rake 2 and the distributor 6 A are slowly rotated integrally by the motor 4 and the distributor driving unit 8.
【００２６】この凝集沈殿装置においても、凝集剤が添
加された原水はカラム５内に供給され、ディストリビュ
ータ６Ａの側面の流出口７Ａからディストリビュータ６
Ａ及びレーキ２の回転方向後流側に向って、即ち、レー
キ２による汚泥の掻き寄せ方向と逆向きに汚泥ゾーンＳ
内に流出する。そして、ディストリビュータ６Ａ及びレ
ーキ２がモータ４によって同時にゆっくりと回転される
ことによって沈降槽１内の液がゆっくりと撹拌され、フ
ロックの生成及び成長が促進される。In this coagulation and sedimentation apparatus, the raw water to which the coagulant has been added is supplied into the column 5, and is supplied from the outlet 7A on the side surface of the distributor 6A.
A and the slake zone S toward the downstream side in the rotation direction of the rake 2, that is, in the direction opposite to the direction in which the rake 2 scrapes sludge.
Spills into. When the distributor 6A and the rake 2 are simultaneously slowly rotated by the motor 4, the liquid in the settling tank 1 is slowly stirred, and the generation and growth of flocs are promoted.
【００２７】図２（ａ），（ｂ）の従来例と同様に、沈
降したフロックは、レーキ２によって中央に集められて
図示しない排泥管より槽外に排出され、清澄水は溢流部
１０をオーバーフローし、流出部１１から処理水として
取り出される。2 (a) and 2 (b), the settled flocs are collected at the center by the rake 2 and discharged out of the tank through a drain pipe (not shown). 10 overflows and is taken out from the outlet 11 as treated water.
【００２８】このような凝集沈殿装置であれば、ディス
トリビュータ６Ａとレーキ２とが一体に、沈降槽１の底
部に設けられているため、汚泥ゾーンＳの高さを低くす
ることができ、汚泥ゾーンＳの膨張を防止して安定運転
を行うことができる。In such a coagulating sedimentation apparatus, since the distributor 6A and the rake 2 are provided integrally at the bottom of the settling tank 1, the height of the sludge zone S can be reduced, and the sludge zone S can be reduced. The stable operation can be performed by preventing the expansion of S.
【００２９】また、汚泥ゾーンＳを低くすることができ
ることから、沈降槽１の高さを低くして装置の小型化を
図ることができる。Further, since the sludge zone S can be reduced, the height of the settling tank 1 can be reduced, and the size of the apparatus can be reduced.
【００３０】そして、レーキ２はディストリビュータ６
Ａと一体化されているため、レーキ２はディストリビュ
ータ６Ａの下部に吊り下げるなどして取り付けるのみで
良く、レーキ２の落下防止のためのターンバックルやレ
ーキ回転用シャフトは不要となる。The rake 2 is connected to the distributor 6
Since the rake 2 is integrated with the rake 2, the rake 2 only needs to be attached to the lower portion of the distributor 6A by suspending the rake 2 or the like, and a turnbuckle for preventing the rake 2 from dropping and a rake rotating shaft are not required.
【００３１】また、本実施の形態では、ディストリビュ
ータ６Ａの原水流出口７Ａが、ディストリビュータ６Ａ
の回転方向後流側の側面に設けられ、かつディストリビ
ュータ６Ａの上部に整流板１２が設けられているため、
図３（ａ）に示す如く、原水流が汚泥ゾーンＳを流動化
させることは殆どなく、汚泥ゾーンＳの膨張及びそれに
よる処理水中へのＳＳの流出を防止して安定な運転を行
える。In this embodiment, the raw water outlet 7A of the distributor 6A is connected to the distributor 6A.
Is provided on the side surface on the downstream side in the rotation direction of the above, and the rectifying plate 12 is provided above the distributor 6A.
As shown in FIG. 3 (a), the raw water flow hardly fluidizes the sludge zone S, so that the expansion of the sludge zone S and the outflow of SS into the treated water due to the expansion can be prevented, and a stable operation can be performed.
【００３２】このような凝集沈殿装置において、汚泥ゾ
ーンＳによる濾過作用を十分に得るためには、前述の如
く、汚泥ゾーンＳの高さはディストリビュータ６Ａの上
方１０〜５０ｃｍ程度の位置に汚泥ゾーンＳの界面ＳＡ
が位置するような高さ、即ち、図１（ａ）においてｈ＝
１０〜５０ｃｍであることが好ましい。In such a coagulating sedimentation apparatus, in order to sufficiently obtain the filtering action of the sludge zone S, as described above, the height of the sludge zone S is set at about 10 to 50 cm above the distributor 6A. Interface SA
Is located, that is, h = h in FIG.
It is preferably 10 to 50 cm.
【００３３】また、ディストリビュータ６Ａとレーキ２
との合計の高さＨには特に制限はないが、汚泥ゾーンＳ
の高さを過度に高くしないために１ｍ以下、特に４０〜
８０ｃｍ程度であることが好ましい。Further, the distributor 6A and the rake 2
Is not particularly limited, but the sludge zone S
1m or less, especially 40 ~
It is preferably about 80 cm.
【００３４】[0034]
【発明の効果】以上詳述した通り、本発明によれば、ス
ラッジブランケット型凝集沈殿装置の構造を簡単なもの
として設計施工を容易かつ安価に行うことが可能となる
上に、沈降槽の高さを低くして装置の小型化を図ること
ができる。As described above in detail, according to the present invention, the structure of the sludge blanket-type coagulation and sedimentation apparatus can be made simple and the design and construction can be performed easily and inexpensively. The size can be reduced and the size of the device can be reduced.
【図１】図１（ａ）は本発明の凝集沈殿装置の実施の形
態を示す概略的な縦断面図、図１（ｂ）は図１（ａ）の
Ｂ−Ｂ線に沿う断面図である。FIG. 1 (a) is a schematic longitudinal sectional view showing an embodiment of a coagulation and sedimentation apparatus of the present invention, and FIG. 1 (b) is a sectional view taken along the line BB of FIG. 1 (a). is there.
【図２】図２（ａ）は従来の凝集沈殿装置の概略的な縦
断面図、図２（ｂ）は図２（ａ）のＢ−Ｂ線に沿う断面
図である。FIG. 2 (a) is a schematic longitudinal sectional view of a conventional coagulation and sedimentation apparatus, and FIG. 2 (b) is a sectional view taken along line BB of FIG. 2 (a).
【図３】図３（ａ）は本発明における原水の分散供給機
構を示す模式的な断面図、図３（ｂ）は従来における原
水の分散供給機構を示す模式的な断面図である。FIG. 3A is a schematic cross-sectional view illustrating a raw water dispersion and supply mechanism according to the present invention, and FIG. 3B is a schematic cross-sectional view illustrating a conventional raw water dispersion and supply mechanism.
１ 沈降槽 ２ レーキ ５ 筒状カラム ６，６Ａ ディストリビュータ ７，７Ａ 原水流出口 １２ 整流板 DESCRIPTION OF SYMBOLS 1 Sedimentation tank 2 Rake 5 Cylindrical column 6, 6A Distributor 7, 7A Raw water outlet 12 Straightening plate
Claims (2)
設けたスラッジブランケット型の凝集沈殿装置におい
て、 該集泥部材の直上に原水供給部材を該集泥部材と一体的
に回転可能に設けたことを特徴とする凝集沈殿装置。1. A sludge blanket-type coagulation and sedimentation device in which a sludge collecting member is rotatably provided at the bottom of a settling tank, wherein a raw water supply member can be integrally rotated with the sludge collecting member immediately above the sludge collecting member. A coagulation sedimentation device provided in the above.
回転方向の後流側に向って開口する原水流出口を備えて
いることを特徴とする凝集沈殿装置。2. The coagulation sedimentation apparatus according to claim 1, wherein the raw water supply member includes a raw water outlet that opens toward the downstream side in the rotational direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00644097A JP3463493B2 (en) | 1997-01-17 | 1997-01-17 | Coagulation sedimentation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00644097A JP3463493B2 (en) | 1997-01-17 | 1997-01-17 | Coagulation sedimentation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10202009A true JPH10202009A (en) | 1998-08-04 |
| JP3463493B2 JP3463493B2 (en) | 2003-11-05 |
Family
ID=11638471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00644097A Expired - Fee Related JP3463493B2 (en) | 1997-01-17 | 1997-01-17 | Coagulation sedimentation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3463493B2 (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334214A (en) * | 1999-05-27 | 2000-12-05 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2002126407A (en) * | 2000-10-25 | 2002-05-08 | Kurita Water Ind Ltd | Settling tank |
| JP2002306906A (en) * | 2001-04-17 | 2002-10-22 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2002361003A (en) * | 2001-06-06 | 2002-12-17 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2003053105A (en) * | 2001-08-10 | 2003-02-25 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2003205206A (en) * | 2002-01-15 | 2003-07-22 | Sumitomo Heavy Ind Ltd | Flocculating and settling apparatus and its operating method |
| JP2003290606A (en) * | 2002-03-29 | 2003-10-14 | Sumitomo Heavy Ind Ltd | Flocculation and sedimentation apparatus |
| JP2009291778A (en) * | 2008-05-09 | 2009-12-17 | Ik Shoji Kk | Treatment system of sewage such as washing water for perishables |
| JP2010274199A (en) * | 2009-05-28 | 2010-12-09 | Sumitomo Heavy Industries Environment Co Ltd | Coagulation sedimentation equipment |
| JP2012135724A (en) * | 2010-12-27 | 2012-07-19 | Ik Shoji Kk | Solid-liquid separation method having decoloring function of treated water in septic tank and apparatus for executing the same |
| KR101216288B1 (en) | 2012-04-24 | 2012-12-28 | 조삼녀 | High-rate circle sedimentation basin |
| CN104797316A (en) * | 2012-11-20 | 2015-07-22 | 栗田工业株式会社 | Distributor, settling tank and method for operating same |
| CN104812456A (en) * | 2012-11-20 | 2015-07-29 | 栗田工业株式会社 | Settling tank and method for operating same |
| JP2016190210A (en) * | 2015-03-31 | 2016-11-10 | 住友重機械エンバイロメント株式会社 | Flocculation and sedimentation treatment device |
| JP2018140381A (en) * | 2017-02-24 | 2018-09-13 | オルガノ株式会社 | Coagulation sedimentation equipment |
| JP2018161636A (en) * | 2017-03-27 | 2018-10-18 | 住友重機械エンバイロメント株式会社 | Coagulation sedimentation processing equipment |
| JP2021049529A (en) * | 2021-01-04 | 2021-04-01 | 住友重機械エンバイロメント株式会社 | Flocculation and sedimentation treatment apparatus |
| JP2021146322A (en) * | 2020-03-23 | 2021-09-27 | 住友重機械エンバイロメント株式会社 | Flocculation sedimentation treatment device and flocculation sedimentation treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102803155B (en) * | 2010-03-18 | 2014-01-01 | 栗田工业株式会社 | Start-up method of high-density sludge generation type water treatment device |
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| JPH03174204A (en) * | 1989-12-04 | 1991-07-29 | Ebara Infilco Co Ltd | Slurry blanket-type flocculating and settling device |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334214A (en) * | 1999-05-27 | 2000-12-05 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2002126407A (en) * | 2000-10-25 | 2002-05-08 | Kurita Water Ind Ltd | Settling tank |
| JP2002306906A (en) * | 2001-04-17 | 2002-10-22 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2002361003A (en) * | 2001-06-06 | 2002-12-17 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2003053105A (en) * | 2001-08-10 | 2003-02-25 | Kurita Water Ind Ltd | Coagulation sedimentation equipment |
| JP2003205206A (en) * | 2002-01-15 | 2003-07-22 | Sumitomo Heavy Ind Ltd | Flocculating and settling apparatus and its operating method |
| JP2003290606A (en) * | 2002-03-29 | 2003-10-14 | Sumitomo Heavy Ind Ltd | Flocculation and sedimentation apparatus |
| JP2009291778A (en) * | 2008-05-09 | 2009-12-17 | Ik Shoji Kk | Treatment system of sewage such as washing water for perishables |
| JP2010274199A (en) * | 2009-05-28 | 2010-12-09 | Sumitomo Heavy Industries Environment Co Ltd | Coagulation sedimentation equipment |
| JP2012135724A (en) * | 2010-12-27 | 2012-07-19 | Ik Shoji Kk | Solid-liquid separation method having decoloring function of treated water in septic tank and apparatus for executing the same |
| KR101216288B1 (en) | 2012-04-24 | 2012-12-28 | 조삼녀 | High-rate circle sedimentation basin |
| CN104797316A (en) * | 2012-11-20 | 2015-07-22 | 栗田工业株式会社 | Distributor, settling tank and method for operating same |
| CN104812456A (en) * | 2012-11-20 | 2015-07-29 | 栗田工业株式会社 | Settling tank and method for operating same |
| CN104812456B (en) * | 2012-11-20 | 2016-08-17 | 栗田工业株式会社 | Stillpot and method of operation thereof |
| US9649578B2 (en) | 2012-11-20 | 2017-05-16 | Kurita Water Industries Ltd. | Settling tank and method of operating the same |
| JP2016190210A (en) * | 2015-03-31 | 2016-11-10 | 住友重機械エンバイロメント株式会社 | Flocculation and sedimentation treatment device |
| JP2018140381A (en) * | 2017-02-24 | 2018-09-13 | オルガノ株式会社 | Coagulation sedimentation equipment |
| JP2018161636A (en) * | 2017-03-27 | 2018-10-18 | 住友重機械エンバイロメント株式会社 | Coagulation sedimentation processing equipment |
| JP2021146322A (en) * | 2020-03-23 | 2021-09-27 | 住友重機械エンバイロメント株式会社 | Flocculation sedimentation treatment device and flocculation sedimentation treatment method |
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