JPS6125920Y2 - - Google Patents
Info
- Publication number
- JPS6125920Y2 JPS6125920Y2 JP1982189055U JP18905582U JPS6125920Y2 JP S6125920 Y2 JPS6125920 Y2 JP S6125920Y2 JP 1982189055 U JP1982189055 U JP 1982189055U JP 18905582 U JP18905582 U JP 18905582U JP S6125920 Y2 JPS6125920 Y2 JP S6125920Y2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- duct
- septic tank
- partition plate
- contact 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.)
- Expired
Links
- 238000005273 aeration Methods 0.000 claims description 39
- 239000010865 sewage Substances 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000013049 sediment Substances 0.000 claims description 11
- 238000001556 precipitation Methods 0.000 claims description 10
- 239000010802 sludge Substances 0.000 description 10
- 238000000926 separation method Methods 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material 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
Landscapes
- Treatment Of Biological Wastes In General (AREA)
- Biological Treatment Of Waste Water (AREA)
Description
【考案の詳細な説明】
この考案は汚水浄化槽に関し、詳しくは被処理
汚水中に散気を行なつて浄化していく、曝気型の
汚水浄化槽に関する。[Detailed Description of the Invention] This invention relates to a sewage septic tank, and more particularly to an aeration type sewage septic tank that purifies the sewage by aerating the sewage to be treated.
一般に曝気型汚水浄化槽は、接触曝気室内で汚
水中に遊離した剥離汚泥の外部への流出を防止す
るため一たん被処理汚水を沈澱室に導びき、剥離
汚泥を沈澱除去した後その上澄液のみを消毒室な
どを経て外部へ排出するようにされている。 Generally, in an aeration type sewage septic tank, in order to prevent the exfoliated sludge released in the sewage in the contact aeration chamber from flowing out to the outside, the sewage to be treated is first introduced into the settling chamber, and after the exfoliated sludge is settled and removed, the supernatant liquid is removed. Only the waste is discharged outside through a disinfection room, etc.
ところで、上記沈澱室においては剥離汚泥が堆
積すると、スカムが発生し、排出水の水質上問題
があるため、沈澱室内の堆積汚泥は、速やかに沈
澱室より外部へと導出させる必要がある。 By the way, if the exfoliated sludge is deposited in the settling chamber, scum will be generated and there will be problems with the water quality of the discharged water, so the accumulated sludge in the settling chamber needs to be quickly led out from the settling chamber.
このため、従来にあつては、第1図イに示すよ
うに一つのの槽Aを下端B1で連通する仕切板B
により仕切り、一方を曝気室C、他方を沈澱室D
とし、仕切板B下端の連通部Eを介して被処理汚
水を移流させていくようにすると共に、曝気室C
内において散気管Fから噴出される気泡により生
じる施回流(矢印G)により沈澱室D内で沈澱堆
積した汚泥を再び曝気室内に自然に引き戻すよう
に構成したものが提案され、かつ広く実施されて
いる。 For this reason, in the past, as shown in Fig. 1A, a partition plate B that communicates one tank A with the lower end B1 is used.
partitioned into aeration chamber C on one side and precipitation chamber D on the other side.
The sewage to be treated is advected through the communication part E at the lower end of the partition plate B, and the aeration chamber C
A structure in which the sludge deposited in the settling chamber D is naturally drawn back into the aeration chamber by a circulation flow (arrow G) generated by air bubbles ejected from the aeration pipe F in the aeration chamber has been proposed and widely implemented. There is.
しかしながら、上記構成の浄化槽は、曝気室の
長さが長さが長い場合、あるいは曝気室の幅が長
さに比し著るしく大きい場合などには、沈澱室D
内の堆積物を引き戻すに足る充分な施回流を得る
ことが困難となり、汚泥返送が不完全になるとい
つた欠点があつた。 However, in a septic tank with the above configuration, if the length of the aeration chamber is long, or if the width of the aeration chamber is significantly larger than the length, the settling chamber D
It was difficult to obtain sufficient circulation flow to pull back the sediment inside the tank, resulting in incomplete sludge return.
また、このような欠点を解消するため、第1図
ロに示すように、仕切板B下端に案内板Hを対向
間隔を隔てて立設し、この間に散気管F′を配置
し、散気管F′より噴出する気泡により強制的に
流れを起し、沈澱室D内の堆積物を強制的に引き
出すようにすることも行なわれているが、この場
合、気泡により沈澱室より曝気室側へ向う排出流
G1が生じると、必ずこれに見合つた曝気室より
沈澱室に向う浸入流G2が生じ、この侵入流は沈
澱室内において上昇流となるため堆積物の沈澱状
態が乱されやすくなるといつた問題があつた。 In addition, in order to eliminate this drawback, as shown in Fig. 1B, guide plates H are set upright at the lower end of the partition plate B at opposite intervals, and an aeration pipe F' is arranged between them. It has also been done to forcibly create a flow using air bubbles ejected from F′ to forcibly draw out the sediment in the settling chamber D, but in this case, the air bubbles move from the settling chamber to the aeration chamber side. Oncoming discharge stream
When G 1 occurs, a corresponding infiltration flow G 2 from the aeration chamber toward the settling chamber is generated, and this intrusion flow becomes an upward flow in the settling chamber, which tends to disturb the sedimentation state of the sediment. It was hot.
このような問題を解消するため、本願出願人は
第1図ハに示すように沈澱室Dに向う浸入流G2
を生じさせる循環流路Jを設けることを先に提案
した(実開昭54−135046号)。 In order to solve such problems, the applicant of the present application has developed an infiltration flow G 2 toward the precipitation chamber D as shown in FIG. 1C.
It was previously proposed to provide a circulation flow path J that generates this (Utility Model Application Publication No. 54-135046).
しかし、上記構造の浄化槽は、循環流路Jを設
けるため構造が複雑となるほか、循環流路Jの上
部入口が被処理水の基準水面WL近傍に開口する
ため、水位の変動があるとこれが循環流の強弱に
影響し、定常的な循環を生じさせにくいといつた
問題があつた。 However, the structure of the septic tank with the above structure is complicated due to the provision of the circulation flow path J, and the upper inlet of the circulation flow path J opens near the reference water level WL of the water to be treated, so if there is a fluctuation in the water level, this may occur. There was a problem that it affected the strength of the circulating flow and made it difficult to generate steady circulation.
この考案は上記問題点に鑑み、沈澱室において
堆積した汚泥をその堆積状態を乱すことなくスム
ースに接触曝気室へと導入し得る汚水浄化槽を提
供することを目的としてなされたものであつて、
接触曝気室と沈澱室とを仕切る下部連通とされた
仕切板の前記接触曝気室側面の下部中央に、上端
が前記接触曝気室の水面下に開口し、下端が前記
仕切板下端より前記沈澱室側へ臨ませて開口する
ダクト状部材が設けられ、かつ、該ダクト状部材
で囲まれる空間内に堆積物返送流発生用の散気装
置を配設して成ることを特徴とするものである。 This invention was devised in view of the above-mentioned problems, with the purpose of providing a sewage septic tank that can smoothly introduce the sludge accumulated in the settling chamber into the contact aeration chamber without disturbing the accumulation state.
A partition plate that is connected to the lower part of the contact aeration chamber and the precipitation chamber has an upper end opening below the water surface of the contact aeration chamber at the center of the lower part of the side surface of the contact aeration chamber, and a lower end of the partition plate that connects the precipitation chamber from the lower end of the partition plate. A duct-like member opening toward the side is provided, and an air diffuser for generating a sediment return flow is disposed within a space surrounded by the duct-like member. .
以下、この考案を実施例により説明する。 This invention will be explained below using examples.
第2図はこの考案の一実施例の断面図、第3図
は第2図の−線矢視斜視図である。 FIG. 2 is a cross-sectional view of an embodiment of this invention, and FIG. 3 is a perspective view taken along the - line in FIG.
この考案の汚水浄化槽Aは、汚水導入口1Aを
有する固形物分離室1B、接触曝気室1C、沈澱
室1D、及び処理水排出口1Fを有する消毒室1
Eなどを備えた槽本体1において、接触曝気室1
Cと沈澱室1Dとを仕切る下部連通とされた仕切
板2の接触曝気室側面2Aの下部中央に、上端3
Aが接触曝気室1C水面下に開口し、下端3Bが
仕切板2の下端2Bより前記沈澱室1D側へ臨ま
せて開口するダクト状部材3が設けられ、かつ、
このダクト状部材3で囲まれる空間4内に堆積物
返送流発生用の散気装置5を配設することによつ
て構成されている。また、接触曝気室内には接触
材Kが充填されている。 The sewage septic tank A of this invention includes a solid separation chamber 1B having a sewage inlet 1A, a contact aeration chamber 1C, a settling chamber 1D, and a disinfection chamber 1 having a treated water outlet 1F.
In the tank body 1 equipped with E etc., the contact aeration chamber 1
At the center of the lower part of the side surface 2A of the aeration chamber, the upper end 3
A duct-like member 3 is provided, in which A opens below the water surface of the contact aeration chamber 1C, and a lower end 3B opens toward the settling chamber 1D side from the lower end 2B of the partition plate 2, and
It is constructed by disposing an air diffuser 5 for generating a sediment return flow in a space 4 surrounded by this duct-like member 3. Further, the contact aeration chamber is filled with contact material K.
そして、散気装置5に給気し、ここより噴出さ
れる気泡によつて生じる上向水流をダクト部材3
によつて整流し、この流れによつて沈澱室1D内
の堆積物8を接触曝気室1C内へ導びくのであ
る。 Then, air is supplied to the air diffuser 5, and the upward water flow generated by the bubbles ejected from the air diffuser 5 is transferred to the duct member 3.
This flow guides the deposits 8 in the precipitation chamber 1D into the contact aeration chamber 1C.
このとき、第3図に示すように、ダクト状部材
3の排出流S1によつて惹起される接触曝気室1C
より沈澱室1Dに向う水流Sは、沈澱室1D底部
に沿つた流れとなるため、沈澱堆積物を撹乱して
しまうことがなく、スムースにダクト状部材3方
向へ移流していくのである。 At this time, as shown in FIG. 3, the contact aeration chamber 1C caused by the discharge flow S1 of the duct-like member 3
The water flow S, which is more directed toward the settling chamber 1D, flows along the bottom of the settling chamber 1D, so that the water flow S smoothly advects toward the duct-like member 3 without disturbing the sediment.
尚、上記実施例として、ダクト状部材3として
は、第3図に図示したように、仕切板2の側面2
Aとで囲繞空間4を形成する断面コ字状をなす部
材9によつて形成し、この部材9を槽1の底面1
0へ延出させ、延出部分9Aを沈澱室側開口部と
しても良い。 In the above embodiment, the duct-like member 3 is the side surface 2 of the partition plate 2, as shown in FIG.
A is formed by a member 9 having a U-shaped cross section which forms the surrounding space 4, and this member 9 is connected to the bottom surface 1 of the tank 1.
0, and the extending portion 9A may be used as an opening on the precipitation chamber side.
また、沈澱堆積物8の集中化、並びに散気装置
5により惹起される水流の強化を図るため、第4
図に示すように、ダクト状部材3の設けられる仕
切板2部分を沈澱室1D側へフード状3Cに膨出
変形させても良く、この場合、沈澱堆積物8は、
フード状部3Cと沈澱室1D側面とで形成される
楔状空間11に集中することとなり、一方、水流
Sは、この楔状空間11の底部に沿つた流れとな
るため、一層効率の良い汚泥排出が行なわれる。 In addition, in order to concentrate the sediment 8 and strengthen the water flow caused by the air diffuser 5, a fourth
As shown in the figure, the part of the partition plate 2 where the duct-like member 3 is provided may be expanded and deformed into a hood-like shape 3C toward the precipitation chamber 1D, and in this case, the precipitated deposits 8 are
The water flow S will be concentrated in the wedge-shaped space 11 formed by the hood-shaped part 3C and the side surface of the settling chamber 1D, while the water flow S will flow along the bottom of this wedge-shaped space 11, resulting in more efficient sludge discharge. It is done.
また、上記実施例において、ダクト状部材3と
しては、第5図に示すようにパイプによるドラフ
トチユーブ12としても良く、図示のように下端
12Aを沈澱室1D側へL示状に曲折し、この曲
折部の開口面12Bを沈澱室1Dに臨ませて開口
するか、あるいは第6図に示すように、ドラフト
チユーブ12に直管状のものを用い、下端面を斜
面開口状とすることによつてこの開口部12Cを
沈澱室1Dに臨ませる構成としても良い。 In the above embodiment, the duct-like member 3 may be a draft tube 12 made of a pipe as shown in FIG. Either the opening surface 12B of the bent portion is opened facing the settling chamber 1D, or as shown in FIG. The opening 12C may be configured to face the precipitation chamber 1D.
また、ダクト状部材3内に配設される散気装置
5への給気配管は接触曝気室1C内に散気を行な
う給気配管より分岐して配管する構成とすること
が望ましく、適宜コツクなどで給送出来るように
しておけば、配管が経済的に行なえ好都合であ
る。 In addition, it is desirable that the air supply pipe to the air diffuser 5 disposed in the duct-like member 3 is branched from the air supply pipe that diffuses air into the contact aeration chamber 1C. It would be convenient if it could be fed by a pipe or the like, as the piping could be done economically.
また、この考案は、上記実施例で説明したよう
な、固形物分離室、曝気室、沈澱室、消毒室など
から成る分離接触曝気型浄化槽のほか、曝気室と
沈澱室とを有する浄化槽、例えば全曝気型、分離
曝気型、接触曝気型、合併汚水処理槽などのもの
であつても同様に実施出来る。 In addition to the separation contact aeration type septic tank consisting of a solid matter separation chamber, aeration chamber, settling chamber, disinfection chamber, etc. as explained in the above embodiment, this invention also applies to a septic tank having an aeration chamber and a settling chamber, e.g. The same method can be used for total aeration type, separate aeration type, contact aeration type, combined sewage treatment tank, etc.
この考案は以上のように構成されているので、
沈澱室内に堆積した汚泥を排出する際、排出流
は、ダクトにより整流され、沈澱室内では沈澱室
底面に沿つた一方向流れとなるから、沈澱堆積物
が撹乱されることなく、速やかに排出され、沈澱
室上部の上澄液をにごすことなく、効率良く汚泥
を排出出来、かつ、構造も簡単であるので実施も
容易であるといつた実用的効果を有する。 This idea is structured as above, so
When discharging the sludge accumulated in the settling chamber, the discharge flow is rectified by the duct and becomes a unidirectional flow along the bottom surface of the settling chamber, so that the settled sediment is quickly discharged without being disturbed. This method has practical effects such as being able to efficiently discharge sludge without turbidating the supernatant liquid in the upper part of the settling chamber, and being simple in structure and easy to implement.
第1図イ,ロ,ハは従来例の断面図、第2図は
この考案の実施例の断面図、第3図は第2図の
−線矢視斜視図、第4図は他の実施例の要部斜
視図、第5図、第6図はさらに他の実施例の要部
斜視図である。
A……汚水浄化槽、1……槽本体、1C……接
触曝気室、1D……沈澱室、2……仕切板、2A
……仕切板の接触曝気室側面、3……ダクト状部
材、3A……上端、3B……下端、4……ダクト
内空間、5……堆積物返送流用散気装置。
Figure 1 A, B, and C are sectional views of a conventional example, Figure 2 is a sectional view of an embodiment of this invention, Figure 3 is a perspective view taken along the - line in Figure 2, and Figure 4 is another embodiment. FIGS. 5 and 6 are perspective views of essential parts of still another embodiment. A... Sewage septic tank, 1... Tank body, 1C... Contact aeration chamber, 1D... Sedimentation chamber, 2... Partition plate, 2A
...Contact aeration chamber side surface of partition plate, 3...Duct-shaped member, 3A...Upper end, 3B...Lower end, 4...Duct interior space, 5...Aeration device for sediment return flow.
Claims (1)
れた仕切板の前記接触曝気室側面の下部中央部
に上端が上記接触曝気室内の水面下に開口し、
下端が前記仕切板下端より前記沈澱室側へ臨ま
せて開口するダクト状部材が設けられ、かつ、
該ダクト状部材で囲まれる空間内に堆積物返送
流発生用の散気装置を配設して成ることを特徴
とする汚水浄化槽。 (2) ダクト状部材が、仕切板側面とで囲繞空間を
形成する断面コ字状をなす部材により形成され
ている実用新案登録請求の範囲第1項記載の汚
水浄化槽。 (3) ダクト状部材の設けられる仕切板部分が、沈
澱室側へフード状に膨出変形されている実用新
案登録請求の範囲第1項、又は、第2項記載の
汚水浄化槽。 (4) ダクト状部材がパイプによるドラフトチユー
ブとされている実用新案登録請求の範囲第1項
又は第3項記載の汚水浄化槽。 (5) 堆積物返送流発生用の散気装置への散気供給
が、接触曝気室内へ散気する散気供給管より分
岐供給されるようにされている実用新案登録請
求の範囲第1項、第2項、第3項、又は第4項
記載の汚水浄化槽。[Scope of Claim for Utility Model Registration] (1) A partition plate which is connected to the lower part and which partitions the contact aeration chamber and the precipitation chamber, has an upper end opening below the water surface in the contact aeration chamber at the center of the lower part of the side surface of the contact aeration chamber. ,
A duct-like member is provided, the lower end of which opens toward the precipitation chamber side from the lower end of the partition plate, and
A sewage septic tank characterized in that an aeration device for generating a sediment return flow is disposed in a space surrounded by the duct-like member. (2) The sewage septic tank according to claim 1, wherein the duct-like member is formed by a member having a U-shaped cross section that forms a surrounding space with the side surface of the partition plate. (3) The sewage septic tank according to claim 1 or 2, wherein the partition plate portion on which the duct-like member is provided is bulged into a hood shape toward the settling chamber. (4) The sewage septic tank according to claim 1 or 3, wherein the duct-like member is a draft tube made of a pipe. (5) Utility model registration claim Paragraph 1, in which the air supply to the air diffuser for generating sediment return flow is branched from the air diffuser supply pipe that diffuses air into the contact aeration chamber. , the sewage septic tank according to paragraph 2, paragraph 3, or paragraph 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982189055U JPS5993790U (en) | 1982-12-13 | 1982-12-13 | Sewage septic tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1982189055U JPS5993790U (en) | 1982-12-13 | 1982-12-13 | Sewage septic tank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5993790U JPS5993790U (en) | 1984-06-26 |
JPS6125920Y2 true JPS6125920Y2 (en) | 1986-08-04 |
Family
ID=30407704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1982189055U Granted JPS5993790U (en) | 1982-12-13 | 1982-12-13 | Sewage septic tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5993790U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008029964A (en) * | 2006-07-28 | 2008-02-14 | Kubota Corp | Wastewater treatment tank |
-
1982
- 1982-12-13 JP JP1982189055U patent/JPS5993790U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5993790U (en) | 1984-06-26 |
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