JPS5813238B2 - water treatment equipment - Google Patents
water treatment equipmentInfo
- Publication number
- JPS5813238B2 JPS5813238B2 JP54132085A JP13208579A JPS5813238B2 JP S5813238 B2 JPS5813238 B2 JP S5813238B2 JP 54132085 A JP54132085 A JP 54132085A JP 13208579 A JP13208579 A JP 13208579A JP S5813238 B2 JPS5813238 B2 JP S5813238B2
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- tank
- treatment device
- sludge
- pipe
- 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
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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Physical Water Treatments (AREA)
Description
【発明の詳細な説明】
本発明は、活性汚泥式処理装置、及び、その処理装置か
らの処理水に対して活性汚泥を浮上分離する装置を設け
ると共に、前記浮上分離装置から前記処理装置に活性汚
泥を返送する装置を設けた水処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an activated sludge treatment device and a device for flotation separation of activated sludge from treated water from the treatment device. The present invention relates to a water treatment device equipped with a device for returning sludge.
上記の水処理装置において、浮上分離装置からの活性汚
泥を活性汚泥式処理装置に返送供給するに、従来は、浮
上分離させた活性汚泥をオーバーフローによって取出し
て、それを前記処理装置にポンプ返送させているが、オ
ーバーフローによる活性汚泥の取出し量が変動しやすい
事と、処理水の量や濃度による汚濁負荷に応じてポンプ
による汚泥返送量を増減させる事の相乗によって、その
返送量がオーバーフロー量を上廻るような場合、ポンプ
の空運転が生じると共に、活性汚泥の返送不能によって
処理能力が大巾に低下し、時には処理すること自体が不
能になる等の問題がみられた。In the above water treatment equipment, in order to return and supply the activated sludge from the flotation separator to the activated sludge treatment equipment, conventionally the activated sludge that has been floated and separated is taken out by overflow and pumped back to the treatment equipment. However, due to the fact that the amount of activated sludge taken out due to overflow is likely to fluctuate, and the amount of sludge returned by the pump is increased or decreased depending on the pollution load due to the amount and concentration of treated water, the amount of returned sludge is less than the amount of overflow. In such a case, the pump would run dry and the treatment capacity would be drastically reduced due to the inability to return the activated sludge, sometimes resulting in problems such as the treatment itself becoming impossible.
本発明は、上述の実情に鑑みて、極めて簡単な改良でも
って、必要量の活性汚泥を確実に返送する事ができるよ
うにする事を目的とする。In view of the above-mentioned circumstances, it is an object of the present invention to make it possible to reliably return the required amount of activated sludge with extremely simple improvements.
次に、本発明の実施の態様を例示図に基いて詳述する。Next, embodiments of the present invention will be described in detail based on illustrative drawings.
深部で連通する内筒１と外筒２によって、例えは１００
ｍものレベル差を有する下降流路Ａと上昇流路Ｂを形成
し、前記上昇流路Ｂの上部にタンク３を連設すると共に
、掲水ポンプＰを備えた流路Ｃを前記タンク３から下降
流路Ａにわたって接続し、そして浮上分離装置４からの
回収汚泥を貯留槽５を通して返送供給する管６と、被処
理水の供給管７、及び酸素含有ガスの供給管８を、夫々
前記下降流路Ａの上部に接続して、活性汚泥を含む処理
水を前記３流路Ａ，Ｂ，Ｃにわたって循環流動させると
共に、前記下降流路Ａにおいて被処理水中に酸素ガスを
溶解させて、活性汚泥による生物化学的酸素要求量など
の汚濁指標の改善を行なわせ、かつ前記上昇流路Ｂにお
いて溶解ガスを気泡化させて、活性汚泥の凝集を効率良
く行なわせられるように、活性汚泥式の処理装置９を構
成してある。For example, 100
A descending channel A and an ascending channel B having a level difference of m are formed, a tank 3 is connected to the upper part of the ascending channel B, and a channel C equipped with a water pump P is connected from the tank 3. A pipe 6 that connects across the descending flow path A and returns and supplies recovered sludge from the flotation separator 4 through the storage tank 5, a supply pipe 7 for water to be treated, and a supply pipe 8 for oxygen-containing gas are connected to the descending flow path A, respectively. Connected to the upper part of flow path A, the treated water containing activated sludge is circulated through the three flow paths A, B, and C, and oxygen gas is dissolved in the water to be treated in the downward flow path A to activate the activated sludge. An activated sludge method was developed to improve pollution indicators such as biochemical oxygen demand due to sludge, and to bubble the dissolved gas in the upward flow path B to efficiently coagulate activated sludge. A processing device 9 is configured.
前記浮上分離装置４を構成するに、前記タンク３からの
処理水の供給管１０を接続した分離槽１１に、そこで浮
上分離した活性汚泥を回収槽１２に取出す装置１３を設
けると共に、その取出し装置１３に向けて活性汚泥を掻
寄せる装置１４を設け、そして槽１２に回収した活性汚
泥を貯留槽５に、かつ清浄水をオーバーフローによって
トラフ１６から流路１７に取出すようにしてある。To configure the flotation separation device 4, a separation tank 11 to which a supply pipe 10 of treated water from the tank 3 is connected is provided with a device 13 for taking out the activated sludge floated and separated therein to a recovery tank 12, and a device 13 for taking out the activated sludge floated and separated therein to a recovery tank 12. A device 14 for raking activated sludge toward tank 13 is provided, and activated sludge collected in tank 12 is taken out into storage tank 5, and clean water is taken out from trough 16 into channel 17 by overflow.
前記トラフ１６に取出した清浄水の一部を、ポンプ２５
と加圧タンク２６を備えた流路２７を介して前記供給管
１０に接続し、かつ前記ポンプ２５の下流側流路部分に
コンプレッサー２８からの加圧空気を供給し、加圧空気
と清浄水を前記タンク２６内に一定時間滞留させて、加
圧下で空気を清浄水に十分溶解させた後、その清浄水を
前記供給管１０を通して処理水に混入して分離槽１１に
還元供給するようにしてあり、前記分離槽１１における
常圧下での溶解空気の微細気泡化によって、活性汚泥を
効率良く凝集させて浮上分離させるようにしてある。A portion of the clean water taken out into the trough 16 is pumped into the pump 25.
It is connected to the supply pipe 10 through a flow path 27 having a pressurized tank 26, and supplies pressurized air from a compressor 28 to the downstream flow path portion of the pump 25, thereby supplying pressurized air and clean water. is allowed to remain in the tank 26 for a certain period of time to sufficiently dissolve the air in the clean water under pressure, and then the clean water is mixed into the treated water through the supply pipe 10 and supplied back to the separation tank 11. By forming dissolved air into fine bubbles under normal pressure in the separation tank 11, the activated sludge is efficiently flocculated and separated by flotation.
前記活性汚泥取出し装置１３を構成するに、第１図及び
第２図に示すように、ほぼ逆Ｕ字状の管路ａを形成する
複数個のサイホン管１８を、その一端開口部を分離槽１
１の浮上活性汚泥層に臨ませると共に、他端開口部を前
記回収槽１２に臨ませて、夫々を間隔をへだてて並設し
、そしてそのサイホン管１８の頂部に、自動弁１９と真
空タンク２０及び真空ポンプ２１を備えた管２２を分岐
接続して、前記管路ａを真空状態下におく事によってサ
イホンを起動させるようにし、そのサイホン作用で浮上
活性汚泥を回収槽１２に取出すようにしてある。As shown in FIGS. 1 and 2, the activated sludge removal device 13 includes a plurality of siphon pipes 18 forming a substantially inverted U-shaped pipe line a, one end of which is connected to a separation tank. 1
The siphon pipes 18 are provided with an automatic valve 19 and a vacuum tank at the top of the siphon pipe 18. 20 and a pipe 22 equipped with a vacuum pump 21 are branch-connected to place the pipe line a under a vacuum condition to activate a siphon, and the floating activated sludge is taken out to the collection tank 12 by the siphon action. There is.
尚、サイホンの破壊を弁２３の開放によって、かつドレ
ンの排出を弁２４の開放によって、夫々タイムスケジュ
ールに合せて行なわれるようにしてある。The siphon is destroyed by opening the valve 23, and the drain is discharged by opening the valve 24 in accordance with the respective time schedules.
そして、前記回収槽１２の底壁を一側方に下降傾斜させ
て、その傾斜下端側に上下位置変更固定自在なセキ２９
を設け、このセキ２９をオーバーフローさせて活性汚泥
を貯留槽５に取出する共に、その貯留汚泥を返送装置３
６によって前記供給管６から活性汚泥式の処理装置９に
供給し、かつ余剰の活性汚泥を、圧送装置３１を備えた
管路３２を通して、焼却や自己消化などの後処理装置３
３に取出すようにしてある。The bottom wall of the recovery tank 12 is tilted downward to one side, and a wall 29 that can be freely changed and fixed in its vertical position is attached to the lower end of the slope.
The drain 29 is overflowed to take out the activated sludge into the storage tank 5, and the stored sludge is sent to the return device 3.
6, the surplus activated sludge is supplied from the supply pipe 6 to the activated sludge treatment device 9, and the surplus activated sludge is passed through a pipe 32 equipped with a pressure feeding device 31 to a post-treatment device 3 such as incineration or self-extinguishing.
It is designed to be taken out at 3.
前記活性汚泥の掻寄せ装置１４を構成するに、前記サイ
ホン管１８・・・・・・の並設方向に沿う横軸芯周りで
駆動回転自在な軸３４を、浮上活性汚泥層の上部におい
て前記分離槽１１に架設すると共に、その軸３４に対し
て、その軸芯方向並びに軸芯周りに間隔をへだててレー
キ状に掻寄せ部材３５・・・・・・を設け、かつそれら
の部材３５・・・・・・が浮上活性汚泥層とその層上部
にわたって繰返し回転して、サイホン管１８が活性汚泥
を吸い込みやすいように前記浮上汚泥を掻き解しながら
、それをサイホン管１８・・・・・・に向けて掻寄せる
ようにしてある。To configure the activated sludge scraping device 14, a shaft 34, which can be driven and rotated freely around a horizontal axis along the direction in which the siphon pipes 18 are arranged, is connected to the above floating activated sludge layer above the floating activated sludge layer. In addition to being installed in the separation tank 11, raking members 35 are provided in a rake shape with respect to the shaft 34 at intervals in the axial direction and around the axial center, and these members 35. ... rotates repeatedly over the floating activated sludge layer and the upper part of the layer, and the siphon pipe 18 ... rotates repeatedly over the floating activated sludge layer and the upper part of the layer, and while scraping the floating sludge so that the siphon pipe 18 can easily suck the activated sludge, the siphon pipe 18 ...・It is designed to be raked towards.
尚、活性汚泥掻寄せ部材３５として、それを格子状や網
状など各種変形可能である。The activated sludge scraping member 35 can be modified into various shapes such as a lattice shape or a net shape.
以上要するに本発明は、冒記した水処理装置において、
前記浮上分離装置において前記返送装置に供給すべく活
性汚泥を分離回収させるために、ほぼＵ字形状の管路を
形成するサイホン管を、その一端開口部を分離槽の浮上
活性汚泥層にかつ他端開口部を活性汚泥回収槽に夫々臨
ませた状態で設けると共に、前記分離槽の浮上活性汚泥
を前記サイホン管に向かって掻寄せる部材を、横軸芯周
りで駆動回転自在に設けてある事を特徴とする。In summary, the present invention provides the water treatment apparatus described above,
In order to separate and recover activated sludge to be supplied to the return device in the flotation separator, a siphon pipe forming a substantially U-shaped conduit is connected to the flotation activated sludge layer of the separation tank, and the other end is connected to the flotation activated sludge layer of the separation tank. The end openings are provided with their respective end openings facing the activated sludge recovery tank, and a member for raking the floating activated sludge of the separation tank toward the siphon pipe is provided so as to be freely driven and rotatable about the horizontal axis. It is characterized by
即ち、活性汚泥の取出しをサイホン作用によって行なわ
せる事によって、回収槽から取出した量と等しいたけの
活性汚泥を分離槽から回収槽に間断なく取出す事ができ
、しかも掻き寄せ部材によって積極的に活性汚泥をサイ
ホン管に掻寄せると共に、それと同時に、たとえ浮上汚
泥の上層部が干からびてもそれを十分に掻き解す作用の
相乗によって、サイホン機能を良好にかつ確実に維持で
き、全体として、極めて簡単な改良でもって、返送装置
の空運転や汚泥返送不能の事態を生じさせないで、効率
良く水処理を行なわせられるようになった。In other words, by taking out the activated sludge through siphon action, activated sludge in an amount equal to the amount taken out from the collection tank can be taken out from the separation tank to the collection tank without interruption, and moreover, the raking member actively activates the sludge. The siphon function can be maintained well and reliably by the synergistic action of raking the sludge into the siphon pipe and, at the same time, sufficiently scraping up the upper layer of the floating sludge even if it dries up. Overall, it is extremely simple. The improvements have made it possible to efficiently process water without running the return device dry or not being able to return sludge.
図面は本発明に係る水処理装置の実施の態様を例示し、
第１図は概略全体縦断側面図、第２図は活性汚泥取出し
装置の斜視図であり、第３図はサイホン管の断面図であ
る。
４・・・・・・浮上分離装置、９・・・・・・活性汚泥
式処理装置、１１・・・・・・分離槽、１２・・・・・
・回収槽、１８・・・・・・サイホン管、３０・・・・
・・返送装置、３５・・・・・・掻寄せ部材、ａ・・・
・・・逆Ｕ字形状の流路。The drawings illustrate embodiments of the water treatment device according to the present invention,
FIG. 1 is a schematic overall vertical sectional side view, FIG. 2 is a perspective view of the activated sludge removal device, and FIG. 3 is a sectional view of the siphon pipe. 4...Flotation separation device, 9...Activated sludge treatment device, 11...Separation tank, 12...
・Recovery tank, 18... Siphon pipe, 30...
... Return device, 35... Scraping member, a...
...An inverted U-shaped flow path.
Claims (1)
の処理水に対して活性汚泥を浮上分離する装置４を設け
ると共に、前記浮上分離装置４から前記処理装置９に活
性汚泥を返送する装置３０を設けた水処理装置であって
、前記浮上分離装置４において前記返送装置３０に供給
すべく活性汚泥を分離回収させるために、ほぼ逆Ｕ字形
状の管路ａを形成するサイホン管１８を、その一端開口
部を分離槽１１の浮上活性汚泥層にかつ他端開口部を活
性汚泥回収槽１２に夫々臨ませた状態で設けると共に、
前記分離槽１１の浮上活性汚泥を前記サイホン管１８に
向かって掻寄せる部材３５・・・・・・を、横軸芯周り
で駆動回転自在に設けてある事を特徴とする水処理装置
。1 An activated sludge treatment device 9 and a device 4 that floats and separates activated sludge from the treated water from the treatment device 9, as well as a device that returns activated sludge from the flotation device 4 to the treatment device 9. 30, in order to separate and recover activated sludge to be supplied to the return device 30 in the flotation separator 4, a siphon pipe 18 forming a substantially inverted U-shaped pipe a is provided. , with one end opening facing the floating activated sludge layer of the separation tank 11 and the other end opening facing the activated sludge recovery tank 12, and
A water treatment device characterized in that a member 35 for raking the floating activated sludge in the separation tank 11 toward the siphon pipe 18 is provided so as to be freely driven and rotatable around a horizontal axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54132085A JPS5813238B2 (en) | 1979-10-12 | 1979-10-12 | water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54132085A JPS5813238B2 (en) | 1979-10-12 | 1979-10-12 | water treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5656296A JPS5656296A (en) | 1981-05-18 |
| JPS5813238B2 true JPS5813238B2 (en) | 1983-03-12 |
Family
ID=15073140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54132085A Expired JPS5813238B2 (en) | 1979-10-12 | 1979-10-12 | water treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5813238B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6097146U (en) * | 1983-12-06 | 1985-07-02 | 東陶機器株式会社 | Local pine surger for bath |
| JPS6136291Y2 (en) * | 1983-12-28 | 1986-10-21 | ||
| JPS61288862A (en) * | 1985-06-13 | 1986-12-19 | 松下電工株式会社 | Structure of bathtub |
| JPS62124789U (en) * | 1986-01-29 | 1987-08-07 | ||
| JPS63102774A (en) * | 1986-10-17 | 1988-05-07 | クロバ−株式会社 | Health instrument for bathing |
| JPS6379948U (en) * | 1986-11-13 | 1988-05-26 | ||
| JPH0137631Y2 (en) * | 1984-03-05 | 1989-11-13 | ||
| JPH023729U (en) * | 1988-06-21 | 1990-01-11 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59115777A (en) * | 1982-12-23 | 1984-07-04 | Nippon Kokan Kk <Nkk> | Water treatment |
-
1979
- 1979-10-12 JP JP54132085A patent/JPS5813238B2/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6097146U (en) * | 1983-12-06 | 1985-07-02 | 東陶機器株式会社 | Local pine surger for bath |
| JPS6136291Y2 (en) * | 1983-12-28 | 1986-10-21 | ||
| JPH0137631Y2 (en) * | 1984-03-05 | 1989-11-13 | ||
| JPS61288862A (en) * | 1985-06-13 | 1986-12-19 | 松下電工株式会社 | Structure of bathtub |
| JPS62124789U (en) * | 1986-01-29 | 1987-08-07 | ||
| JPS63102774A (en) * | 1986-10-17 | 1988-05-07 | クロバ−株式会社 | Health instrument for bathing |
| JPS6379948U (en) * | 1986-11-13 | 1988-05-26 | ||
| JPH023729U (en) * | 1988-06-21 | 1990-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5656296A (en) | 1981-05-18 |
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