JPS644479Y2 - - Google Patents
Info
- Publication number
- JPS644479Y2 JPS644479Y2 JP1982108178U JP10817882U JPS644479Y2 JP S644479 Y2 JPS644479 Y2 JP S644479Y2 JP 1982108178 U JP1982108178 U JP 1982108178U JP 10817882 U JP10817882 U JP 10817882U JP S644479 Y2 JPS644479 Y2 JP S644479Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- biological treatment
- sedimentation
- water
- sludge
- 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
- 238000004062 sedimentation Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims 1
- 239000010802 sludge Substances 0.000 description 13
- 239000006228 supernatant Substances 0.000 description 7
- 238000005192 partition Methods 0.000 description 6
- 239000010865 sewage Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid 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
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
【考案の詳細な説明】
本考案は、生物処理部と沈殿部とを一体化した
オキシデーシヨンデツチ（以下、ODと記す）に
関するものである。[Detailed description of the invention] The present invention relates to an oxidation ditch (hereinafter referred to as OD) that integrates a biological treatment section and a precipitation section.
従来小規模下水処理装置としてODが使用され
ているが、その一般的なフローは第１図に示すと
おりである。 OD has traditionally been used as a small-scale sewage treatment system, and its general flow is shown in Figure 1.
すなわち、原水は原水調整槽でその性状を均等
化されたのちODにおいて生物処理され、次いで
最終沈殿池において、生物処理により発生する活
性汚泥を固液分離されて放流水となる。 That is, the raw water is subjected to biological treatment in the OD after its properties are equalized in the raw water adjustment tank, and then in the final sedimentation tank, the activated sludge generated by the biological treatment is separated into solid and liquid and becomes effluent water.
このようなODは、最初沈殿池の役目も兼ねて
いる利点はあるものの最終沈殿池を別途設置する
必要があり、ODはほかの生物処理装置に比べて
設置面積が大きくなる問題点があるので、敷地面
積を出来る限り有効に利用するため、第２図に示
すようにODと最終沈殿池の配置について色々の
工夫がなされている。 Although this type of OD has the advantage of also serving as an initial sedimentation tank, it requires a separate final sedimentation tank, and the problem with OD is that it requires a larger installation area than other biological treatment equipment. In order to utilize the site area as effectively as possible, various ideas have been made regarding the placement of the OD and final settling basin, as shown in Figure 2.
第２図ａはODと最終沈殿池をODの長手方向
に一列に配置したもの、第２図ｂはODの水路の
内側に最終沈殿池を配置したもの、第２図ｃは
ODの側面に最終沈殿池を付設したものである。 Figure 2a shows the OD and the final settling tank arranged in a line in the longitudinal direction of the OD, Figure 2b shows the final settling tank arranged inside the OD channel, and Figure 2c shows the arrangement.
A final settling tank is attached to the side of the OD.
しかしながら、第２図ａ〜ｃに示す配置では
OD装置全体の設置面積の縮小化の効果が小さ
く、根本的な解決には至つていない。 However, in the arrangement shown in Figures 2a-c,
The effect of reducing the installation area of the entire OD device is small, and no fundamental solution has been reached.
本考案は、従来装置の上記問題点を解消し、設
置面積を大巾に縮小できるOD装置を提供するこ
とを目的とするものであり、槽内の水面に駆動機
構により回転され表面曝気と水の回流を兼ねる回
転ロータを備えたオキシデーシヨンデツチ型生物
処理装置において、前記槽の長手方向の少なくと
も一端部に同一巾で沈殿部を併設すると共に、該
沈殿部と生物処理部とを中心側をヒンジとした開
閉可能な２枚のゲートで区画してなる生物処理装
置である。 The purpose of this invention is to solve the above-mentioned problems of conventional devices and provide an OD device that can greatly reduce the installation area. In an oxidation ditch-type biological treatment device equipped with a rotary rotor that also serves as circulation, a sedimentation section with the same width is provided at least at one end in the longitudinal direction of the tank, and a This is a biological treatment device divided by two gates with hinged sides that can be opened and closed.
本考案の一実施例を第３図乃至第５図によつて
説明すると、このOD装置は、OD１とOD１の長
手方向の一端部に直結された沈殿池２とから構成
されている。OD１の水路の形状、回転ロータ３
の構造等は従来装置におけるものと同様である
が、沈殿池２の巾はOD１の巾と同一であり、
OD１と沈殿池２は底面が同一水平面により形成
され水深が均等となるようになつており、ヒンジ
４により平面形状が舌状の仕切壁（コンクリート
製）５に取付けた開閉可能な断面円弧状の２枚の
ゲート６により区画され、該ゲート６が開放（２
点鎖線で示す）のときにはOD１と沈殿池２が一
体化されてOD１内の水が沈殿池２内に流入し、
ゲート６が閉鎖（実線で示す）されているときは
OD１内に従来装置と同様の循環流路が形成され
る構造となつている。 An embodiment of the present invention will be described with reference to FIGS. 3 to 5. This OD device is composed of an OD 1 and a settling basin 2 directly connected to one end in the longitudinal direction of the OD 1. Shape of waterway of OD1, rotating rotor 3
The structure etc. of is the same as that of the conventional device, but the width of settling tank 2 is the same as the width of OD1,
The bottoms of the OD 1 and the sedimentation tank 2 are formed by the same horizontal plane, so that the water depth is equal. It is divided by two gates 6, and the gate 6 is opened (2
), OD1 and sedimentation tank 2 are integrated and the water in OD1 flows into sedimentation tank 2,
When gate 6 is closed (indicated by a solid line)
It has a structure in which a circulation flow path similar to the conventional device is formed within OD1.
上記沈殿池２には、その断面円弧状の側壁に沿
つてオーバーフロー用のロンダー７が、またその
底部には平面形状がＴ字状の汚泥ピツト８がそれ
ぞれ設けられ、ロンダー７は弁V1を備えた管路
９に、汚泥ピツト８は弁V2を備えた管路１０に
それぞれ連通されている。上記ゲート６の下部と
槽底面の間には小さなすき間をあけてあるので、
OD１と沈殿池２の水面高さは常に同一である。 The sedimentation tank 2 is provided with an overflow launder 7 along its side wall having an arcuate cross section, and a sludge pit 8 with a T-shaped planar shape at its bottom . The sludge pits 8 are each connected to a line 9 provided with a line 10 with a valve V2 . There is a small gap between the bottom of the gate 6 and the bottom of the tank, so
The water surface heights of OD1 and settling tank 2 are always the same.
なお弁V1，V2はいずれも自動開閉弁であり、
タイマー及び沈殿池２内に設けられた汚泥界面計
（図示せず）からの信号により開閉されるが、こ
れらを手動開閉弁としてもよい。第３図〜第５図
中、１１は仕切壁である。 Note that both valves V 1 and V 2 are automatic open/close valves.
It is opened and closed by a timer and a signal from a sludge interface meter (not shown) provided in the settling tank 2, but these may be used as manual opening/closing valves. In FIGS. 3 to 5, 11 is a partition wall.
次に、上記実施例の作用・効果を第６図をも参
照して説明すると、２ケ所のゲート６を開くと沈
殿池２内へOD１よりの水流が流れ込み、沈殿池
２はOD１と一体化する。次に、ゲート６を２ケ
所共閉じると水流はOD１内で循環し、沈殿池２
内の汚水は静止する。沈殿池２で静止した汚水は
汚泥と上澄水に分離するので、ある時間経過後、
弁V1，V2を開けてロンダー７より上澄水を、汚
泥ピツト８より汚泥を排出する。上澄水の排出を
つづけると、ゲート６下部から入つてくる汚水に
より、沈殿汚泥も上昇してくるので、上澄水が汚
水へと変つてくる。これを沈殿池２内に設置した
汚泥界面計で検知し、弁V1を閉じて上澄水の排
出を停止する。この操作は上澄水の排出時間が常
に一定であれば、タイマー作動により弁V1を開
閉して行つてもよい。また、汚泥の排出は、あら
かじめ決められた時間行い、タイマーで弁V2を
閉じて終了させる。 Next, the action and effect of the above embodiment will be explained with reference to FIG. 6. When the two gates 6 are opened, the water flow from OD1 flows into the settling tank 2, and the settling tank 2 is integrated with the OD1. do. Next, when both gates 6 are closed, the water flow circulates within OD1, and the settling tank 2
The sewage inside becomes still. Stagnant sewage in settling tank 2 is separated into sludge and supernatant water, so after a certain period of time,
Valves V 1 and V 2 are opened to discharge supernatant water from the launder 7 and sludge from the sludge pit 8. If the supernatant water continues to be discharged, the precipitated sludge will rise due to the sewage coming in from the lower part of the gate 6, and the supernatant water will turn into sewage. This is detected by a sludge interface meter installed in the settling tank 2, and the valve V1 is closed to stop the discharge of supernatant water. This operation may be performed by opening and closing the valve V1 by operating a timer if the supernatant water discharge time is always constant. In addition, the sludge discharge is carried out for a predetermined period of time, and the timer is used to close the valve V2 to complete the discharge.
上澄水及び汚泥の排出が終了したらゲート６を
開け、OD１の水流を沈殿池２へ導入し、沈殿池
２の底部に堆積した残りの汚泥をOD１へ流し出
す。以上の工程をくり返して行う。 When the discharge of supernatant water and sludge is completed, the gate 6 is opened, a water flow of OD1 is introduced into the sedimentation tank 2, and the remaining sludge accumulated at the bottom of the sedimentation tank 2 is flowed out to the OD1. Repeat the above steps.
なお、本考案ではゲート６を平板状としたり、
沈殿池２の側壁をコ字状としたり、沈殿池２の底
面をOD１より低くすることもできる。また、沈
殿池２をOD１の両側に設け、二ケ所の沈殿池を
交互に作動させ、沈殿池容量を増大させることも
できる。さらに、上記実施例ではゲート６を開放
したときの沈殿池２内の水流を円滑なものとする
ために上記仕切壁５を設けて沈殿池２の水路をＵ
字状にしてあるが、仕切壁５を省略し、その代り
に平板状もしくは断面円弧状の肉薄の仕切壁又は
柱を設けてもよい。 In addition, in this invention, the gate 6 is made into a flat plate shape,
It is also possible to make the side wall of the settling tank 2 U-shaped, or to make the bottom surface of the settling tank 2 lower than OD1. Further, the sedimentation tank 2 can be provided on both sides of the OD 1, and the two sedimentation tanks can be operated alternately to increase the sedimentation tank capacity. Further, in the embodiment described above, in order to make the water flow in the sedimentation tank 2 smooth when the gate 6 is opened, the partition wall 5 is provided, and the water channel of the sedimentation tank 2 is
Although the partition wall 5 is shown in the shape of a letter, the partition wall 5 may be omitted and a thin partition wall or column having a flat plate shape or an arcuate cross section may be provided in its place.
以上のように、本考案は単一の水槽を開閉可能
なゲートにより仕切つて生物処理部と沈殿部を形
成したことを特徴とするOD装置であり、
(1) ODと沈殿池を合せた形状が単純になり、敷
地を有効に利用できる。特に、多数のODを並
列に設置する場合のメリツトが大きい。 As described above, the present invention is an OD device characterized by having a single water tank separated by an openable and closable gate to form a biological treatment section and a sedimentation section. becomes simpler and the site can be used more effectively. This is particularly advantageous when installing multiple ODs in parallel.
(2) 土木構造が簡単になり、建設コストが下が
る。(2) Civil engineering structures become simpler and construction costs are reduced.
(3) 従来沈殿池に独立に設置していた掻寄機械装
置が不要となる。(3) The scraping equipment that was previously installed independently in the sedimentation basin is no longer required.
などの実益がある。There are practical benefits such as
第１図は従来のOD装置のフローシート、第２
図ａ，ｂ及びｃは従来のOD装置におけるODと
沈殿池の各配置要領例を示す平面図であり、第３
図乃至第６図は本考案の実施例を示し、第３図は
平面図、第４図は第３図−線による断面図、
第５図は第３図−線による断面図、第６図は
ゲート、及び沈殿池に設けた自動開閉弁の作動要
領説明図である。
１……OD、２……沈殿池、３……回転ロー
タ、４……ヒンジ、５，１１……仕切壁、６……
ゲート、７……ロンダー、８……汚泥ピツト、
９，１０……管路、V1，V2……弁。
Figure 1 is the flow sheet of a conventional OD device, Figure 2
Figures a, b, and c are plan views showing examples of the arrangement of the OD and sedimentation tank in a conventional OD device, and
6 to 6 show embodiments of the present invention, FIG. 3 is a plan view, FIG. 4 is a sectional view taken along the line of FIG. 3,
FIG. 5 is a sectional view taken along the line of FIG. 3, and FIG. 6 is an explanatory diagram of the operation procedure of the automatic opening/closing valve provided in the gate and sedimentation tank. 1...OD, 2...Sedimentation tank, 3...Rotating rotor, 4...Hinge, 5, 11...Partition wall, 6...
Gate, 7...Launder, 8...Sludge pit,
9, 10...Pipe line, V1 , V2 ...Valve.
Claims (1)
と水の回流を兼ねる回転ロータを備えたオキシデ
ーシヨンデツチ型生物処理装置において、前記槽
の長手方向の少なくとも一端部に同一巾で沈殿部
を併設すると共に、該沈殿部と生物処理部とを中
心側をヒンジとした開閉可能な２枚のゲートで区
画してなる生物処理装置。 In an oxidation ditch-type biological treatment equipment equipped with a rotating rotor that is rotated by a drive mechanism on the water surface in the tank and serves for both surface aeration and water circulation, a sedimentation part is provided with the same width at least at one end in the longitudinal direction of the tank. A biological treatment device in which the sedimentation section and the biological treatment section are separated by two gates that are hinged at the center and can be opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982108178U JPS5915491U (en) | 1982-07-19 | 1982-07-19 | Biological treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982108178U JPS5915491U (en) | 1982-07-19 | 1982-07-19 | Biological treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5915491U JPS5915491U (en) | 1984-01-30 |
| JPS644479Y2 true JPS644479Y2 (en) | 1989-02-06 |
Family
ID=30252489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982108178U Granted JPS5915491U (en) | 1982-07-19 | 1982-07-19 | Biological treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915491U (en) |
-
1982
- 1982-07-19 JP JP1982108178U patent/JPS5915491U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5915491U (en) | 1984-01-30 |
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