JP3278216B2 - Sewage treatment equipment - Google Patents

Sewage treatment equipment

Info

Publication number
JP3278216B2
JP3278216B2 JP34102392A JP34102392A JP3278216B2 JP 3278216 B2 JP3278216 B2 JP 3278216B2 JP 34102392 A JP34102392 A JP 34102392A JP 34102392 A JP34102392 A JP 34102392A JP 3278216 B2 JP3278216 B2 JP 3278216B2
Authority
JP
Japan
Prior art keywords
water
endless
inner cylinder
tank
supply 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 - Fee Related
Application number
JP34102392A
Other languages
Japanese (ja)
Other versions
JPH06165901A (en
Inventor
正和 黒田
恩 湯沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamato Co Ltd
Original Assignee
Yamato Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamato Co Ltd filed Critical Yamato Co Ltd
Priority to JP34102392A priority Critical patent/JP3278216B2/en
Publication of JPH06165901A publication Critical patent/JPH06165901A/en
Application granted granted Critical
Publication of JP3278216B2 publication Critical patent/JP3278216B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Biological Treatment Of Waste Water (AREA)
  • Treatment Of Biological Wastes In General (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、間欠的に排出される
汚水の量や水質が短時間で変化するような有機性の生活
排水、産業排水などの前段処理に適した汚水処理装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment apparatus suitable for pretreatment of organic household wastewater and industrial wastewater in which the amount and quality of wastewater discharged intermittently change in a short time.

【0002】[0002]

【従来の技術】本特許出願人の一人、大和設備工事株式
会社は、特開昭63−158191号公報により処理槽
の内部に、下端を槽底から上に離し、上端が水面上に突
出した内筒を縦設して処理槽の内周と、内筒の外周との
間に無端水路を形成し、該無端水路中に原水を給水管で
供給し、処理水を内筒の内部から処理槽の外に排水管で
抜き出すようにした汚水処理装置を提案した。この汚水
処理装置は、固液の沈降分離装置であって、無端水路の
水中に突入した給水管の先端に、原水を該無端水路に沿
った一方向の旋回流とする横向きの噴出口を設け、原水
中の粗大固形物は無端水路の下方の槽底に、微細なSS
は内筒の内部下方の槽底に沈降させる。
2. Description of the Related Art One of the assignees of the present invention, Daiwa Sekisho Kogyo Co., Ltd., disclosed in Japanese Patent Application Laid-Open No. 63-158191, the lower end of the treatment tank was separated from the bottom and the upper end was projected above the water surface. An inner cylinder is installed vertically to form an endless water channel between the inner circumference of the treatment tank and the outer circumference of the inner cylinder. Raw water is supplied to the endless water channel by a water supply pipe, and the treated water is treated from inside the inner cylinder. We proposed a sewage treatment device that was drawn out of the tank with a drain pipe. This sewage treatment apparatus is a solid-liquid sedimentation separation apparatus, and is provided with a horizontal jet port at the tip of a water supply pipe that has entered the water of an endless waterway, the raw water being a one-way swirling flow along the endless waterway. , Coarse solids in the raw water are placed on the bottom of the tank below the endless channel,
Is settled at the bottom of the tank below the inside of the inner cylinder.

【0003】[0003]

【発明が解決しようとする課題】上記先行提案では、給
水管の先端の横向きの噴出口から無端水路に噴出した原
水の旋回流は重力と、水路壁面との摩擦によってしか運
動エネルギを低減しない。このため槽内は旋回流により
攪乱され、槽内の液が静止するには時間を要し、その間
に槽底に沈積した固形物を舞い上げたり、槽底に固形物
を一様に沈降させることが十分できない。更に、高い処
理水質を得るため生物学的処理を行うには、内筒から処
理槽の外に抜き出した処理水を、別個に設置した生物処
理槽に導いて処理しなければならず、設置スペース、コ
ストアップ等の問題が生じる。
In the above-mentioned prior proposal, the swirling flow of raw water spouted from the lateral outlet at the end of the water supply pipe into the endless water channel reduces kinetic energy only by gravity and friction with the wall surface of the water channel. For this reason, the inside of the tank is disturbed by the swirling flow, and it takes time for the liquid in the tank to stand still, during which time solids deposited on the bottom of the tank are soared or solids are uniformly settled on the bottom of the tank I can't do enough. Furthermore, in order to perform biological treatment in order to obtain high treated water quality, the treated water extracted from the inner cylinder to the outside of the treatment tank must be guided to a separately installed biological treatment tank for treatment, and the installation space is required. This causes problems such as an increase in cost.

【0004】[0004]

【課題を解決するための手段】請求項1は、旋回流の運
動エネルギを急速に低減して前述の問題点を解消した沈
降分離装置としての汚水処理装置に関するもので、処理
槽の内部に、下端を槽底から上に離し、上端が水面上に
突出した内筒を縦設して処理槽の内周と、内筒の外周と
の間に無端水路を形成し、該無端水路中に原水を給水管
で供給し、処理水を内筒の内部から処理槽の外に排水管
で抜き出すようにした汚水処理装置において、前記無端
水路の水中に突入した給水管の先端に、原水を該無端水
路に正反対の方向に供給して旋回させる2つの分岐噴出
口を設けると共に、前記無端水路内の、給水管が設けら
れた位置とは正反対の位置に該無端水路を横切る邪魔板
を設けたことを特徴とする。又、請求項2は、沈降分離
と、嫌気的生物処理を1つの槽で行うようにした汚水処
理装置に関するもので、処理槽の内部に、下端を槽底か
ら上に離し、上端が水面上に突出した内筒を縦設して処
理槽の内周と、内筒の外周との間に無端水路を形成し、
該無端水路中に原水を給水管で供給し、処理水を内筒の
内部から処理槽の外に排水管で抜き出すようにした汚水
処理装置において、前記無端水路の水中に突入した給水
管の先端に、原水を該無端水路に正反対の方向に供給し
て旋回させる2つの分岐噴出口を設け、前記無端水路内
の、給水管が設けられた位置とは正反対の位置に該無端
水路を横切る邪魔板を設けると共に、微生物を付着した
坦体群を内筒の内部に密集して支持し、且つ該坦体群を
内筒の下端から垂れ下げたことを特徴とする。請求項
1、請求項2のいずれかの汚水処理装置においても、前
記無端水路内の、給水管とは正反対の位置に設けられた
邪魔板は、該無端水路を横切って揺動可能に吊下げるこ
とが好ましい。
A first aspect of the present invention relates to a sewage treatment apparatus as a sedimentation / separation apparatus in which the kinetic energy of a swirling flow is rapidly reduced to solve the above-mentioned problems. The lower end is separated upward from the bottom of the tank, and an inner cylinder whose upper end protrudes above the water surface is vertically installed to form an endless water passage between the inner periphery of the treatment tank and the outer periphery of the inner cylinder. Is supplied through a water supply pipe, and the treated water is extracted from the inside of the inner cylinder to the outside of the treatment tank by a drain pipe. Providing two branch jets for feeding and turning in the opposite direction to the water channel, and providing a baffle plate that crosses the endless water channel in the endless water channel at a position directly opposite to the position where the water supply pipe is provided. It is characterized by. Further, claim 2 relates to a sewage treatment apparatus in which sedimentation separation and anaerobic biological treatment are performed in a single tank, wherein the lower end is separated upward from the tank bottom and the upper end is positioned above the water surface inside the treatment tank. An inner cylinder protruding vertically is formed to form an endless water passage between the inner periphery of the treatment tank and the outer periphery of the inner cylinder,
In a sewage treatment apparatus in which raw water is supplied into the endless waterway by a water supply pipe, and treated water is drawn out of the inner cylinder through a drainage pipe to the outside of the treatment tank, the end of the water supply pipe that has entered the water of the endless waterway Two branch jets for supplying raw water to the endless water channel in the opposite direction and turning the water, and obstructing the endless waterway in the endless waterway at a position exactly opposite to the position where the water supply pipe is provided. A plate is provided, a group of carriers to which microorganisms are attached are densely supported inside the inner cylinder, and the group of carriers is hung down from a lower end of the inner cylinder. In the sewage treatment apparatus according to any one of claims 1 and 2, the baffle provided at a position directly opposite to the water supply pipe in the endless waterway is suspended swingably across the endless waterway. Is preferred.

【0005】[0005]

【実施例】図1,2は請求項1の汚水処理装置の一実施
例、図3,4は請求項2の汚水処理装置の一実施例を示
す。この各実施例において、10は底を有する処理槽、
11は処理槽の内部に縦設されて下端を槽底10´から
上に離し、上端が水面上に突出した内筒であり、処理槽
10の内周と、内筒11の外周との間には無端水路12
が形成されている。13は上記無端水路12中に原水
(汚水)を供給する給水管、15は内筒11の内部から
処理水を処理槽10の外に抜き出す排水管であり、内筒
内の処理水は排水管にオーバフローして流入し、内筒1
1の内部、及び無端水路12内の水位Lは一定に保たれ
る。内筒11の下端は、槽底10´から水位のほゞ40
〜50%に位置する。
1 and 2 show an embodiment of the sewage treatment apparatus according to the first aspect, and FIGS. 3 and 4 show an embodiment of the sewage treatment apparatus of the second aspect. In each of the embodiments, 10 is a processing tank having a bottom,
Reference numeral 11 denotes an inner cylinder which is provided vertically inside the processing tank and has a lower end separated from the tank bottom 10 ′ and an upper end protruding above the water surface, between the inner periphery of the processing tank 10 and the outer periphery of the inner cylinder 11. Endless waterway 12
Are formed. Reference numeral 13 denotes a water supply pipe for supplying raw water (sewage) into the endless water channel 12, reference numeral 15 denotes a drain pipe for extracting treated water from the inside of the inner cylinder 11 to the outside of the treatment tank 10, and treated water in the inner cylinder is a drain pipe. Overflows into the inner cylinder 1
1 and the water level L in the endless water channel 12 are kept constant. The lower end of the inner cylinder 11 is approximately 40 water levels from the tank bottom 10 '.
5050%.

【0006】処理槽10、及び内筒11は図示の実施例
では円筒形で、同心円状の配置になっているため、無端
水路12は環状であるが、処理槽及び/或いは内筒は多
角筒形、楕円筒形であってもよいと共に、処理槽に対す
る内筒の配置はクローズドな無端水路12が形成される
のであれば同心でなくてもよい。又、処理槽10の直径
と深さ、内筒11の直径と長さは処理すべき汚水の排出
量、滞流時間等に応じ適切に定める。
In the illustrated embodiment, the treatment tank 10 and the inner cylinder 11 are cylindrical and concentrically arranged, so that the endless water channel 12 is annular, but the treatment tank and / or the inner cylinder is a polygonal cylinder. The shape and the elliptical cylinder may be used, and the arrangement of the inner cylinder with respect to the treatment tank may not be concentric as long as the closed endless water channel 12 is formed. In addition, the diameter and depth of the treatment tank 10 and the diameter and length of the inner cylinder 11 are appropriately determined according to the amount of wastewater to be treated, the stagnation time, and the like.

【0007】無端水路12の水中に突入した給水管13
の先端部はT形になっていて2つの分岐噴出口14a,
14bを備えている。両噴出口14a,14bは内筒1
1に対して接線方向の反対向きになっているため、給水
管13で間欠的に供給される原水は分岐噴出口14a,
14bでほゞ二分され、各分岐噴出口14a,14bか
ら矢印で示すよう無端水路12中に反対向きに噴出して
正反対の方向の二つの旋回流A,Bを生じる(図2,
4,5)。
The water supply pipe 13 which has entered the water of the endless water channel 12
Has a T-shaped tip and has two branch jets 14a,
14b. Both ejection ports 14a and 14b are inner cylinder 1
1, the raw water supplied intermittently in the water supply pipe 13 is supplied to the branch outlet 14a,
At 14b, they are split into two, and are jetted in opposite directions from the branch jet ports 14a and 14b into the endless water channel 12 to generate two swirling flows A and B in diametrically opposite directions (FIG. 2, FIG. 2).
4,5).

【0008】無端水路12内の、給水管13が設けられ
た位置とは正反対の位置、この実施例では処理槽10、
内筒11が円筒形なので、給水管13の位置と直径方向
に対向した位置に無端水路12を横切る邪魔板16が設
けてある。この邪魔板16の上端は無端水路12中の水
位Lから上に突出する。
In the endless water channel 12, a position opposite to the position where the water supply pipe 13 is provided, in this embodiment, the processing tank 10,
Since the inner cylinder 11 is cylindrical, a baffle plate 16 that crosses the endless water channel 12 is provided at a position diametrically opposed to the position of the water supply pipe 13. The upper end of the baffle plate 16 projects upward from the water level L in the endless water channel 12.

【0009】前述したように給水管13で間欠的に供給
される原水は該管13の下端に設けた反対向きの2つの
分岐噴出口14a,14bでほゞ二分され、各分岐噴出
口14a,14bから反対の向きに噴出して無端水路中
に正反対の方向の2つの旋回流A,Bを生じる。この旋
回流A,Bは図5に示すように、給水管13とは正反対
の位置で無端水路12中を横切る前記邪魔板16の各面
に衝突し、衝突によって折返す反転流A´,B´にな
る。邪魔板16は、このように旋回流A,Bを反対の向
きの反転流A´,B´に変化させるためのものであるか
ら、その下端16´の位置ないしは邪魔板の下向き長さ
は無端水路中で下向きに拡がりながらやって来る旋回流
A,Bが確実に衝突できるように定める。
As described above, the raw water supplied intermittently through the water supply pipe 13 is divided into approximately two by two oppositely-directed branch jets 14a and 14b provided at the lower end of the pipe 13, and each of the branch jets 14a and 14b is separated. Ejected in the opposite direction from 14b, two swirling flows A and B in opposite directions are generated in the endless channel. As shown in FIG. 5, the swirling flows A and B collide with the respective surfaces of the baffle plate 16 traversing the endless water channel 12 at a position exactly opposite to the water supply pipe 13 and are reversed by the collision. become. Since the baffle plate 16 serves to change the swirling flows A and B into reverse flows A 'and B' in opposite directions, the position of the lower end 16 'or the downward length of the baffle plate is endless. The swirling flows A and B that come while spreading downward in the waterway are determined so that they can collide with each other.

【0010】この発明による汚水処理装置では、給水管
13の先端に設けた2つの分岐噴出口14a,14bが
無端水路12中に供給する汚水をほゞ二分し、水路中に
正反対の向きの2つの旋回流A,Bを生じさせる。この
二分された各旋回流A,Bの運動エネルギは、二分され
ない1つの旋回流の運動エネルギよりも小である。従っ
て、2つの旋回流A,Bの運動エネルギは無端水路の壁
面との摩擦によって低減する割合が大きい。
In the sewage treatment apparatus according to the present invention, the two branch jets 14a and 14b provided at the end of the water supply pipe 13 roughly divide the sewage supplied into the endless water channel 12 into two diametrically opposite directions. Two swirling flows A and B are generated. The kinetic energy of each of the bisected swirling flows A and B is smaller than the kinetic energy of one swirling flow that is not bisected. Therefore, the kinetic energy of the two swirling flows A and B is greatly reduced by friction with the wall surface of the endless channel.

【0011】そして、この2つの旋回流A,Bは運動エ
ネルギを低減しながら邪魔板16に衝突し、反転流A
´,B´になって折返すが、邪魔板との衝突によって運
動エネルギは大きく低減し、反転流A´,B´の運動エ
ネルギは大幅に減衰する。以上の結果、無端水路12に
間欠的に汚水が供給され、2つの旋回流、反転流が無端
水路中に生じるが、水路中の液は速やかに静置し、槽底
に沈積する固形物(堆積汚泥)の再浮上、舞い上げが起
きない。そして、2つの旋回流と反転流とによって汚水
中の質量の大きな固形物は無端水路12の下方の槽底1
0´に一様に沈積し、偏積することがない。
Then, the two swirling flows A and B collide with the baffle plate 16 while reducing the kinetic energy, and the reverse flows A
′ And B ′, but the kinetic energy is greatly reduced by the collision with the baffle plate, and the kinetic energy of the reverse flows A ′ and B ′ is greatly attenuated. As a result, sewage is intermittently supplied to the endless water channel 12, and two swirling flows and a reversing flow are generated in the endless water channel. However, the liquid in the water channel quickly stands still and solids ( There is no re-emerging or rising of the accumulated sludge. By the two swirling flows and the reversing flow, the solid matter having a large mass in the sewage is discharged from the tank bottom 1 below the endless water channel 12.
It is uniformly deposited on 0 'and does not deviate.

【0012】無端水路12中で旋回流A,Bを反対の向
きの反転流A´,B´に変化させる前記邪魔板16は、
給水管13とは正反対の位置に固定して設けてもよい
が、無端水路の水中に振子式に揺動可能に吊下げて設け
ることが後述の理由で好ましい。図示の各実施例では排
水管15に邪魔板を吊下げる役目を兼ねさせるため、無
端水路上の邪魔板16の吊下げ位置に排水管15を横断
させ、邪魔板の上端に取付けた支持具17を排水管に嵌
めて邪魔板を揺動可能に吊下げてあるが、これに限定さ
れず排水管以外の横軸を無端水路上に横断して固定し、
これに邪魔板を揺動可能に吊下げてもよいし、又、無端
水路上に横断して固定した支持体に邪魔板をヒンジで揺
動可能に吊り下げてもよい。
The baffle plate 16 for changing the swirling flows A and B into the reverse flows A 'and B' in the endless water channel 12 has opposite directions.
The water supply pipe 13 may be fixedly provided at a position directly opposite to the water supply pipe 13. However, it is preferable that the water supply pipe 13 is provided so as to be swingably suspended in water in an endless waterway in a pendulum manner for the reason described later. In each of the illustrated embodiments, the drain pipe 15 also serves to suspend the baffle plate on the end pipe, so that the drain pipe 15 is traversed at the position where the baffle plate 16 is suspended on the endless water channel, and the support member 17 attached to the upper end of the baffle plate is provided. Is fitted to the drain pipe, and the baffle is suspended swingably, but not limited to this, the horizontal axis other than the drain pipe is fixed across the endless waterway,
The baffle may be suspended swingably, or a baffle may be suspended by a hinge on a support fixed across the endless waterway.

【0013】前述したように給水管13の先端の2つの
分岐噴出口14a,14bは、無端水路12中に汚水を
ほゞ二分して供給し、水路中に正反対の向きの2つの旋
回流A,Bを生じさせるが、分岐噴出口14aと、14
bから流出する汚水の流量には差があるため、2つの旋
回流AとBは非対称な不等流となる。この傾向は浴槽排
水など一時的に大量の汚水が給水管13から無端水路1
2に流入する場合に顕著に表れる。そして、このように
非対称な不等流の旋回流AとBが邪魔板16に衝突した
後の反転流A´,B´は、邪魔板が固定であると対称な
反転流にならず、運動量のバランスを保つため槽底への
下向流を生じ、槽内の流れが攪乱される。しかし、上述
したように邪魔板16を揺動可能に吊下げると、非対称
な不等流の旋回流A,Bの運動量に釣合う角度まで邪魔
板16は振られるので、邪魔板に衝突した後の反転流A
´とB´とはほゞ完全な対称の流れになって運動量のバ
ランスが保たれ、槽底への下向流は抑止されて槽内の流
れの制動効果は高まり、攪乱は生じない。
As described above, the two branch jets 14a and 14b at the end of the water supply pipe 13 supply the sewage into the endless water channel 12 by roughly dividing it into two, and the two swirling flows A in opposite directions into the water channel. , B, but branch jets 14a, 14b
Since there is a difference in the flow rate of the sewage flowing out of b, the two swirling flows A and B are asymmetric unequal flows. The tendency is that a large amount of sewage such as bathtub drainage is temporarily
It appears remarkably when flowing into 2. When the asymmetric swirling flows A and B collide with the baffle plate 16 in this way, the reverse flows A ′ and B ′ do not become symmetrical reverse flows when the baffle plate is fixed, and the momentum does not increase. A downward flow to the bottom of the tank occurs to maintain the balance of the flow, and the flow in the tank is disrupted. However, when the baffle plate 16 is suspended swingably as described above, the baffle plate 16 is swung to an angle commensurate with the momentum of the asymmetric swirling flows A and B, so that the baffle plate 16 collides with the baffle plate. Reversal flow A
'And B' become almost completely symmetrical flows, the momentum balance is maintained, the downward flow to the tank bottom is suppressed, the braking effect of the flow in the tank is increased, and no disturbance occurs.

【0014】以上の結果、無端水路12に間欠的に汚水
が供給され、2つの旋回流、反転流が生じるが、水路中
の液は速やかに静置し、槽底に沈積する固形物(堆積汚
泥)の再浮上、舞い上げが起きない。そして、2つの旋
回流と反転流とによって汚水中の質量の大きな固形物は
無端水路12の下方の槽底10´に一様に沈積し、偏積
することがない。そして、図1,2の汚水処理装置の場
合、内筒11の内部の水面近くの上澄み処理水が排水管
15にオーバフローして入り、外に抜き出されるにつ
れ、内筒の外の液が内筒の内部に下から入り、こゝで液
中に懸濁するSSはスラッジブランケット状に内筒の下
方の槽底10´上に沈降堆積する。
As a result, sewage is intermittently supplied to the endless water channel 12 and two swirling flows and a reversing flow are generated. However, the liquid in the water channel quickly stands still and solid matter (sediment Sludge) does not re-emerge or fly up. By the two swirling flows and the reversing flow, the solid matter having a large mass in the sewage is uniformly deposited on the tank bottom 10 ′ below the endless water channel 12, and is not deviated. In the case of the sewage treatment apparatus shown in FIGS. 1 and 2, as the supernatant treated water near the water surface inside the inner cylinder 11 overflows into the drain pipe 15 and is drawn out, the liquid outside the inner cylinder is filled with water. The SS, which enters the cylinder from below and is suspended in the liquid, sediments and deposits on the tank bottom 10 'below the inner cylinder in a sludge blanket shape.

【0015】図3,4の実施例の汚水処理装置の場合
は、嫌気性菌や、好気性菌などの微生物を付着した坦体
18の多数を筒体11の内部に密集して支持し、内筒の
下端から処理槽の槽底までか、槽底と内筒の下端との中
間位置まで垂れ下げる。坦体18は軽量で柔軟性があ
り、且つ菌体固着性の良い不織布のようなものでも、プ
ラスチック等でできた菌体固着性の良い固形のものでも
よい。密集した坦体18の上端と下端に金網状の支持板
19を取付け、上端を取付けた支持板を内筒11の内部
に固定し、下端に取付けた支持板で坦体を上下方向にピ
ンと張り、且つ坦体が個々に水流で動くのを防止するこ
とが好ましい。
In the case of the sewage treatment apparatus of the embodiment shown in FIGS. 3 and 4, a large number of carriers 18 to which microorganisms such as anaerobic bacteria and aerobic bacteria have adhered are densely supported inside the cylinder 11, It hangs down from the lower end of the inner cylinder to the tank bottom of the processing tank, or to an intermediate position between the tank bottom and the lower end of the inner cylinder. The carrier 18 may be a light-weight, flexible, nonwoven fabric having good cell-fixing properties, or a solid material made of plastic or the like and having good cell-fixing properties. A wire mesh support plate 19 is attached to the upper and lower ends of the densely packed carrier 18, the support plate to which the upper end is attached is fixed inside the inner cylinder 11, and the carrier is vertically pinned by the support plate attached to the lower end. It is preferable to prevent the carriers from individually moving in the water stream.

【0016】この汚水処理装置でも、前述したように無
端水路12に間欠的に供給される汚水によって水路内に
は2つの旋回流、反転流が生じるが、水路中の液は速や
かに静置し、槽底に沈積する固形物(堆積汚泥)の再浮
上、舞い上げが起きない。そして、2つの旋回流と反転
流とによって汚水中の質量の大きな固形物は無端水路1
2の下方の槽底10´に一様に沈積し、偏積することが
ない。そして、内筒11の内部の水面近くの上澄み処理
水が排水管15にオーバフローして入り、外に抜き出さ
れるにつれ、内筒の外の液は内筒の下端から下がる密集
した坦体18の間を通って内筒の内部に下から入って水
面へ上昇し、その上昇速度は坦体18の流動抵抗により
低減されるため、質量の小さい微細な固形物の掃流を抑
止すると共に、液の滞留時間を増加させ、その際に坦体
に付着した微生物と接触し液中のBOD成分などは生物
学的に処理され、排水管15で抜き出される処理水のB
OD濃度は低下する。
In this sewage treatment apparatus, as described above, two swirling flows and a reversing flow are generated in the water channel due to the intermittent water supplied to the endless water channel 12, but the liquid in the water channel is quickly settled. In addition, re-emerging and soaring of solid matter (sedimentary sludge) deposited on the tank bottom does not occur. Then, due to the two swirling flows and the reversing flow, the solid matter having a large mass in the sewage is converted into an endless waterway 1.
2 is uniformly deposited on the bottom 10 ′ of the tank, and does not deviate. Then, as the supernatant treated water near the water surface inside the inner cylinder 11 overflows into the drain pipe 15 and is drawn out, the liquid outside the inner cylinder is discharged from the dense carrier 18 descending from the lower end of the inner cylinder. It passes through the space and enters the inner cylinder from below and rises to the water surface, and its rising speed is reduced by the flow resistance of the carrier 18. The BOD component and the like in the liquid are biologically treated by contacting microorganisms attached to the carrier at that time, and the B of the treated water extracted through the drain pipe 15 is increased.
The OD concentration decreases.

【0017】又、無端水路12での固形物の沈降分離が
効率よく行われるため、坦体18に付着した微生物に対
する固形物の過負荷状態が防止されるので微生物による
生物学的処理も効率的に行われる。
In addition, since the sedimentation and separation of solids in the endless water channel 12 are efficiently performed, the overload of the solids with respect to the microorganisms attached to the carrier 18 is prevented, so that the biological treatment by the microorganisms is also efficient. Done in

【0018】更に、坦体18に付着した微生物は増殖す
ると坦体から一部剥離して槽底10´に沈降し、槽底に
堆積している固形物の汚泥を生物学的に処理する。
Further, when the microorganisms attached to the carrier 18 proliferate, they are partly separated from the carrier and settle on the tank bottom 10 ', and biologically treat solid sludge deposited on the tank bottom.

【0019】従来型の沈殿槽(従来装置と記す。)と、
図3,4に示した汚水処理装置(実施装置と記す。)を
用い3月から8月の同一期間で、A家庭の合併汚水(雑
排水と水洗トイレ排水)を処理した比較実験結果を図6
に示す。同一の槽容量に対して、実施装置の処理水のB
OD濃度は、従来装置の処理水のBOD濃度の半分近く
まで低下して居り、実施装置の処理能力が極めて高いこ
とが実証された。又、処理水のBOD濃度の変動幅も実
施装置では従来装置に比して、極めて小さい。図7に、
上記比較実験例について、処理水のSS濃度を示す。S
S濃度も、BOD濃度と同様に実施装置の処理能力の方
が、従来装置よりも極めて高い。
A conventional settling tank (referred to as a conventional apparatus);
Figure 3 shows the results of a comparative experiment in which the combined wastewater (miscellaneous wastewater and flush toilet wastewater) of Family A was treated in the same period from March to August using the wastewater treatment device (referred to as an implementation device) shown in FIGS. 6
Shown in For the same tank volume, B
The OD concentration was reduced to almost half of the BOD concentration of the treated water of the conventional apparatus, demonstrating that the treatment apparatus had an extremely high treatment capacity. Further, the fluctuation width of the BOD concentration of the treated water is extremely small in the practical apparatus compared to the conventional apparatus. In FIG.
The SS concentration of the treated water is shown for the comparative example. S
As for the S concentration, similarly to the BOD concentration, the processing capacity of the working apparatus is much higher than that of the conventional apparatus.

【0020】図8に、従来型の嫌気濾床槽(従来装置と
記す。)と、図3,4に示した汚水処理装置(実施装
置)を用い、ほゞ同一期間、同一家族構成のB家庭の合
併汚水を処理した比較実験結果を示す。実施装置で処理
した処理水のBODは、従来装置に比して極めて安定し
ている。又、従来装置は嫌気濾床が2室構成になってい
るのに対し、実施装置は単一槽であるため槽容量は小さ
く、設置にスペースをとらない。この比較実験の際の処
理水のSS濃度を図9に示す。実施装置のSS濃度は、
従来装置に較べて低いことに加えて、SS濃度の変動幅
が著しく小さい。特に経過日数100日以降では、従来
装置のSS濃度は上昇傾向にあること、又、第1室に比
して第2室が高くなっていることから第1室では目詰り
が生じていることが伺えるのに反し、実施装置でのSS
濃度は極めて安定している。
FIG. 8 shows a conventional anaerobic filter bed tank (hereinafter referred to as a conventional apparatus) and a sewage treatment apparatus (executing apparatus) shown in FIGS. The result of the comparative experiment which treated the merged sewage of home is shown. The BOD of the treated water treated by the working apparatus is extremely stable as compared with the conventional apparatus. Also, the conventional apparatus has two anaerobic filter beds, whereas the apparatus used is a single tank, so that the capacity of the tank is small and no space is required for installation. FIG. 9 shows the SS concentration of the treated water in this comparative experiment. The SS concentration of the working device is
In addition to being lower than the conventional apparatus, the fluctuation range of the SS concentration is extremely small. In particular, after 100 days, the SS concentration of the conventional device is on the rise, and the first room is clogged because the second room is higher than the first room. On the contrary, SS in the implementation device
The concentration is very stable.

【0021】浴槽排水が一時に大量に流入した場合に付
いて、図3,4の汚水処理装置(実施装置と記す。)、
従来型沈殿装置、及び従来型嫌気濾床槽からの処理水の
BOD濃度と、SS濃度を表1に示す。実施装置の値
は、従来型の2つの装置のいずれかの値よりも極めて低
く、実施装置の処理能力が高いことが実証された。
In the case where a large amount of bathtub drainage flows in at a time, the sewage treatment apparatus shown in FIGS.
Table 1 shows the BOD concentration and the SS concentration of the treated water from the conventional sedimentation apparatus and the conventional anaerobic filter bed tank. The value of the implementation device was much lower than the value of either of the two conventional devices, demonstrating that the throughput of the implementation device was high.

【表1】 [Table 1]

【0022】[0022]

【発明の効果】請求項1の汚水処理装置によって汚水中
の固形物の沈降分離を極めて効率的に行うことができ
る。このため、この汚水処理装置を家庭、事務所、ホテ
ル、公民館等の比較的に小規模で、非定常的に排水され
る有機性汚水の浄化施設の前段に使用することで、後段
の処理装置の固形物、SSによる負荷を大幅に軽減で
き、最終処理水の水質の向上に寄与する。
According to the sewage treatment apparatus of the present invention, sedimentation and separation of solids in sewage can be performed very efficiently. For this reason, this sewage treatment apparatus is used at the front stage of a relatively small, unsteady drainage of organic sewage purification facilities such as homes, offices, hotels, public halls, etc., so that the sewage treatment apparatus at the subsequent stage can be used. The load of solid matter and SS can be greatly reduced, which contributes to the improvement of the quality of the final treated water.

【0023】又、請求項2の汚水処理装置によって単一
の処理槽で効率的な沈降分離と、微生物による生物学的
処理とを行うことができる。従って、この汚水処理装置
を家庭、事務所、ホテル、公民館等の比較的に小規模
で、非定常的に排水される有機性汚水の浄化施設の前段
に使用することで、後段の処理装置の固形物、SSによ
る負荷を大幅に軽減できると共に、脱窒、脱燐等の処理
性能を向上し、最終処理水の水質の向上に著しく寄与す
る。
The wastewater treatment apparatus according to claim 2 enables efficient sedimentation and separation and biological treatment with microorganisms in a single treatment tank. Therefore, by using this sewage treatment apparatus at the front stage of a relatively small-scale, non-stationary drainage organic sewage purification facility such as homes, offices, hotels, public halls, etc. The load due to solids and SS can be greatly reduced, and the processing performance of denitrification, dephosphorization, etc., is improved, contributing significantly to the improvement of the quality of the final treated water.

【図面の簡単な説明】[Brief description of the drawings]

【図1】請求項1の汚水処理装置の一実施例の縦断面図
である。
FIG. 1 is a longitudinal sectional view of one embodiment of a sewage treatment apparatus according to claim 1;

【図2】図1の平面図である。FIG. 2 is a plan view of FIG.

【図3】請求項2の汚水処理装置の一実施例の縦断面図
である。
FIG. 3 is a longitudinal sectional view of one embodiment of the sewage treatment apparatus according to claim 2;

【図4】図3の平面図である。FIG. 4 is a plan view of FIG. 3;

【図5】図1,図3の汚水処理装置の沈降分離作用を示
す模式図である。
FIG. 5 is a schematic view showing a sedimentation / separation operation of the sewage treatment apparatus shown in FIGS. 1 and 3;

【図6】従来型の沈殿分離槽と、本発明の汚水処理装置
とで処理した処理水のBOD濃度を示す比較図表であ
る。
FIG. 6 is a comparison chart showing the BOD concentrations of treated water treated by a conventional sedimentation separation tank and the sewage treatment apparatus of the present invention.

【図7】従来型の沈殿分離槽と、本発明の汚水処理装置
とで処理した処理水のSS濃度を示す比較図表である。
FIG. 7 is a comparative chart showing SS concentrations of treated water treated by a conventional sedimentation separation tank and the sewage treatment apparatus of the present invention.

【図8】従来型の2床式嫌気濾床槽と、本発明の汚水処
理装置とで処理した処理水のBOD濃度を示す比較図表
である。
FIG. 8 is a comparative chart showing the BOD concentrations of treated water treated with a conventional two-bed anaerobic filter bed tank and the sewage treatment apparatus of the present invention.

【図9】従来型の2床式嫌気濾床槽と、本発明の汚水処
理装置とで処理した処理水のSS濃度を示す比較図表で
ある。
FIG. 9 is a comparative chart showing SS concentrations of treated water treated by a conventional two-bed anaerobic filter bed tank and the sewage treatment apparatus of the present invention.

【符号の説明】[Explanation of symbols]

10 処理槽 10´ 槽底 11 内筒 12 無端水路 13 給水管 14a 分岐噴出口 14b 分岐噴出口 15 排水管 16 邪魔板 17 支持具 18 微生物の坦体 19 支持板 A 旋回流 B 旋回流 A´ 反転流 B´ 反転流 DESCRIPTION OF SYMBOLS 10 Processing tank 10 'Tank bottom 11 Inner cylinder 12 Endless water channel 13 Water supply pipe 14a Branch jet port 14b Branch jet port 15 Drain pipe 16 Baffle plate 17 Support tool 18 Microorganism carrier 19 Support plate A Swirling flow B Swirling flow A' Inversion Flow B 'Reverse flow

フロントページの続き (56)参考文献 特開 昭58−79510(JP,A) 特開 昭53−134277(JP,A) 実開 平1−107405(JP,U) 実開 昭63−176503(JP,U) 実開 昭57−25798(JP,U) 実開 昭55−65104(JP,U) 実開 昭52−26284(JP,U) 実開 昭52−11278(JP,U) 実開 昭50−136858(JP,U) 実開 昭50−122458(JP,U) 実開 昭50−113069(JP,U) 実開 昭50−25170(JP,U) 実開 昭48−58653(JP,U) 特許111514(JP,C2) 特表 平7−500279(JP,A) (58)調査した分野(Int.Cl.7,DB名) B01D 21/02 B01D 21/26 C02F 3/00 C02F 3/06 C02F 3/10 Continuation of the front page (56) References JP-A-58-79510 (JP, A) JP-A-53-134277 (JP, A) JP-A-1-107405 (JP, U) JP-A-63-176503 (JP , U) Actually open 1979-57798 (JP, U) Actually open 1979-65104 (JP, U) Actually open 1979-26284 (JP, U) Actually open 1982 52-11278 (JP, U) Actually open 50-136858 (JP, U) Actually open Showa 50-122458 (JP, U) Actually open 50-113069 (JP, U) Actually open 50-50170 (JP, U) Actually open 48-58653 (JP, U U) Patent 111514 (JP, C2) Table 7-500279 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01D 21/02 B01D 21/26 C02F 3/00 C02F 3 / 06 C02F 3/10

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 処理槽の内部に、下端を槽底から上に離
し、上端が水面上に突出した内筒を縦設して処理槽の内
周と、内筒の外周との間に無端水路を形成し、該無端水
路中に原水を給水管で供給し、処理水を内筒の内部から
処理槽の外に排水管で抜き出すようにした汚水処理装置
において、 前記無端水路の水中に突入した給水管の先端に、原水を
該無端水路に正反対の方向に供給して旋回させる2つの
分岐噴出口を設けると共に、前記無端水路内の、給水管
が設けられた位置とは正反対の位置に該無端水路を横切
る邪魔板を設けたことを特徴とする汚水処理装置。
1. An inner cylinder having a lower end separated upward from the tank bottom and an upper end protruding above the water surface is vertically provided inside the processing tank, and an endless end is provided between the inner periphery of the processing tank and the outer periphery of the inner cylinder. A sewage treatment apparatus which forms a waterway, supplies raw water into the endless waterway by a water supply pipe, and draws out treated water from the inside of the inner cylinder to the outside of the treatment tank by a drainage pipe; At the tip of the water supply pipe, two branch jets are provided for supplying raw water to the endless water channel in the opposite direction and turning the same, and in the endless water channel, at a position directly opposite to the position where the water supply pipe is provided. A sewage treatment apparatus comprising a baffle plate crossing the endless waterway.
【請求項2】 処理槽の内部に、下端を槽底から上に離
し、上端が水面上に突出した内筒を縦設して処理槽の内
周と、内筒の外周との間に無端水路を形成し、該無端水
路中に原水を給水管で供給し、処理水を内筒の内部から
処理槽の外に排水管で抜き出すようにした汚水処理装置
において、 前記無端水路の水中に突入した給水管の先端に、原水を
該無端水路に正反対の方向に供給して旋回させる2つの
分岐噴出口を設け、前記無端水路内の、給水管が設けら
れた位置とは正反対の位置に該無端水路を横切る邪魔板
を設けると共に、微生物を付着した坦体群を内筒の内部
に密集して支持し、且つ該坦体群を内筒の下端から垂れ
下げたことを特徴とする汚水処理装置。
2. An inner cylinder having a lower end separated upward from the tank bottom and an upper end protruding above the water surface is vertically provided inside the processing tank, and an endless end is provided between the inner periphery of the processing tank and the outer periphery of the inner cylinder. A sewage treatment apparatus which forms a waterway, supplies raw water into the endless waterway by a water supply pipe, and draws out treated water from the inside of the inner cylinder to the outside of the treatment tank by a drainage pipe; At the tip of the water supply pipe, two branch jets are provided for supplying raw water to the endless water channel in the opposite direction and turning the same, and in the endless water channel, at a position directly opposite to a position where the water supply pipe is provided. A sewage treatment method comprising: providing a baffle plate that crosses an endless waterway; supporting a group of microorganisms adhering thereto in a dense manner inside an inner cylinder; and hanging the group of carriers from a lower end of the inner cylinder. apparatus.
【請求項3】 請求項1、請求項2のどれか1項に記載
の汚水処理装置において、前記無端水路内の、給水管と
は正反対の位置に設けられた邪魔板は、該無端水路を横
切って揺動可能に吊下げられていることを特徴とする汚
水処理装置。
3. The sewage treatment apparatus according to claim 1, wherein a baffle provided at a position directly opposite to a water supply pipe in the endless water passage connects the endless water passage. A sewage treatment apparatus characterized by being suspended so as to be able to swing across.
JP34102392A 1992-11-30 1992-11-30 Sewage treatment equipment Expired - Fee Related JP3278216B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34102392A JP3278216B2 (en) 1992-11-30 1992-11-30 Sewage treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34102392A JP3278216B2 (en) 1992-11-30 1992-11-30 Sewage treatment equipment

Publications (2)

Publication Number Publication Date
JPH06165901A JPH06165901A (en) 1994-06-14
JP3278216B2 true JP3278216B2 (en) 2002-04-30

Family

ID=18342510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34102392A Expired - Fee Related JP3278216B2 (en) 1992-11-30 1992-11-30 Sewage treatment equipment

Country Status (1)

Country Link
JP (1) JP3278216B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020041691A (en) * 2000-11-28 2002-06-03 홍성욱 Cyclone sludge separator and electrolytic water treatment system having the same
KR100382810B1 (en) * 2002-03-22 2003-05-09 Global Technology Dt Inc Settling tank with improved structure
CN105401646A (en) * 2015-12-09 2016-03-16 武汉圣禹排水系统有限公司 Initial rain cyclone separation well
CN113461280B (en) * 2021-08-19 2023-04-28 河南佳诺威木业有限公司 Industrial sewage treatment device

Also Published As

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