JP2986284B2 - Wastewater treatment equipment - Google Patents

Wastewater treatment equipment

Info

Publication number
JP2986284B2
JP2986284B2 JP4108798A JP10879892A JP2986284B2 JP 2986284 B2 JP2986284 B2 JP 2986284B2 JP 4108798 A JP4108798 A JP 4108798A JP 10879892 A JP10879892 A JP 10879892A JP 2986284 B2 JP2986284 B2 JP 2986284B2
Authority
JP
Japan
Prior art keywords
water tank
partition plate
water
wastewater treatment
treatment apparatus
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
JP4108798A
Other languages
Japanese (ja)
Other versions
JPH05277479A (en
Inventor
裕三 福島
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.)
Fujita Kk
Original Assignee
Fujita Kk
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 Fujita Kk filed Critical Fujita Kk
Priority to JP4108798A priority Critical patent/JP2986284B2/en
Publication of JPH05277479A publication Critical patent/JPH05277479A/en
Application granted granted Critical
Publication of JP2986284B2 publication Critical patent/JP2986284B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Description

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

【０００１】[0001]

【産業上の利用分野】本発明は、生活排水や工場排水等
の汚水を曝気処理して浄化するのに供する排水処理装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater treatment apparatus for aerating and purifying wastewater such as domestic wastewater and industrial wastewater.

【０００２】[0002]

【従来の技術】従来、生活排水や工場排水等の汚水を曝
気処理して浄化する排水処理用の曝気槽としての水槽ａ
は図２に示すように、最大水深５ｍ程度のプール状で鉄
筋コンクリート等で構築される。水槽上面ａ1 に、生活
排水等の汚水ｇを注水する排水管ｄ末端を水槽左側壁ａ
3 内側に臨まして配管し、水槽右側壁ａ2 の外部に汚水
ｇを曝気処理して浄化した処理水を排水する排水桝ｂを
設けてある。水槽の右側壁ａ2 の常水位の位置に連通口
３を開口して水槽ａと排水桝ｂを連通するとともに、排
水桝ｂに下水管ｅを敷設して公共下水道等に接続する。
また、前記水槽右側壁ａ2 の下部に沿ってブロワーに直
結した曝気管４を敷設し、同曝気管４に穴明ビニール管
等で製作した複数の空気放出用の散気管５を並列に接続
して水槽底面ａ4 に敷設している。2. Description of the Related Art Conventionally, a water tank a as an aeration tank for wastewater treatment for aerating and purifying wastewater such as domestic wastewater and industrial wastewater.
As shown in FIG. 2, is a pool having a maximum water depth of about 5 m and is constructed of reinforced concrete or the like. The tank upper surface a 1, for injection sewage g domestic wastewater such as wastewater pipe d terminal aquarium left side wall a
3 face the inner piping is provided with a catch basin b to drain the treated water outside the sewage g aquarium right side wall a 2 was cleaned by aeration. Communicated with the water tank a with catch basins b opens the communication port 3 always level position of the right side wall a 2 aquarium, connected to the city sewer or the like laying sewer e in catch basins b.
The connection laying aeration tube 4 which is directly connected to the blower along the bottom of the tub right side wall a 2, a diffusing pipe 5 for a plurality of air discharge fabricated at the same aeration tube 4 to AnaAkira vinyl tube or the like in parallel It is laying in the water tank bottom a 4 in.

【０００３】而して、生活排水等の汚水ｇは排水管ｄを
通って排水管ｄの末端より水槽ａに注水される。水槽ａ
に注水された前記汚水ｇは、水槽ａ内で水平流として移
動中に水槽底面ａ4 に敷設された散気管５から水中に曝
気される空気泡ｆ中の酸素で育成され、活性化した各種
微生物により曝気処理され浄化される。前記浄化された
処理水は水槽ａと連通した排水桝ｂへ排水され、次いで
排水桝ｂから下水管ｅを経て公共下水道等に排水されて
いる。前記散気管５から水中に送風される空気泡ｆの酸
素濃度は２５％程度で、水中への酸素の溶解度は最大で
も８ｍｇ／ｌ程度で、空気泡ｆ中酸素の有効利用率も６
％程度である。また排水処理用の曝気槽では一般に槽内
の微生物濃度を３０００乃至６０００ｍｇ／ｌ程度に維
持するため、ブロワーの駆動時間を長くして大量の空気
を散気管５から供給している。[0003] Sewage g such as domestic wastewater passes through a drainpipe d and is injected into a water tank a from an end of the drainpipe d. Aquarium a
The sewerage g which is water injection in is grown in oxygen in the air bubbles f from the trachea 5 diffusing laid in the water tank bottom a 4 on the move as a horizontal stream in a water bath a is aerated in water, activated various It is aerated and purified by microorganisms. The purified treated water is drained to a drainage basin b communicating with a water tank a, and then drained from the drainage basin b to a public sewer through a drain pipe e. The oxygen concentration of the air bubbles f blown into the water from the air diffuser 5 is about 25%, the solubility of oxygen in the water is about 8 mg / l at the maximum, and the effective utilization rate of oxygen in the air bubbles f is 6%.
%. In addition, in the aeration tank for wastewater treatment, in general, a large amount of air is supplied from the air diffuser 5 by increasing the driving time of the blower in order to maintain the microorganism concentration in the tank at about 3000 to 6000 mg / l.

【０００４】[0004]

【発明が解決しようとする課題】前記従来の排水処理装
置では、汚水ｇは水槽ａ内で水平流となって排水桝ｂに
排水されるため水槽ａ内の滞留時間が短い。従って曝気
処理時間も短いので、曝気処理時間を延ばすため水槽の
平面を横長にすると、建設敷地面積が大きくなってしま
う。また、水槽底面ａ4 に敷設した散気管５から汚水ｇ
中に放出された空気泡ｆは、最大水深が５ｍ程度の水中
を上昇流として自然浮上しながら空気泡ｆ中の酸素を水
中に溶解している。この際供給された酸素の溶解濃度は
２〜３ｍｇ／ｌ程度で、空気泡ｆ中の酸素の有効利用率
６％以下と低いものである。この原因は、前記空気泡ｆ
が上昇流として自然浮上中に酸素が溶解するのに必要な
水中接触時間が１０秒程度と短いためである。従って水
槽ａの微生物濃度を３０００乃至６０００ｍｇ／ｌ程度
に維持するためには、大量の空気を水槽ａに供給するた
めブロワーの曝気能力を高める必要があり、電気料等の
ランニングコストが増大する等の問題があった。本発明
は、前記従来技術の有する問題点に鑑みて提案されたも
ので、その目的とする処は、汚水の水槽滞留時間と空気
泡の水中接触時間を延ばし、かつ空気泡を微細化し拡散
させて供給した空気中酸素の有効利用率を８％程度に高
めることにより、浄化効率の高い、ランニングコストの
安い排水処理装置を提供することにある。In the above-mentioned conventional wastewater treatment apparatus, the sewage g flows horizontally in the water tank a and is discharged to the drainage basin b, so that the residence time in the water tank a is short. Therefore, since the aeration processing time is short, if the plane of the water tank is made horizontally long in order to extend the aeration processing time, the construction site area becomes large. In addition, sewage g from the air diffuser 5 laid on the bottom a 4 of the water tank.
The air bubbles f released therein dissolve the oxygen in the air bubbles f into the water while naturally floating as the ascending flow in water having a maximum water depth of about 5 m. At this time, the dissolved concentration of the supplied oxygen is about 2 to 3 mg / l, and the effective utilization rate of oxygen in the air bubbles f is as low as 6% or less. This is because the air bubbles f
This is because the contact time in water required for oxygen to dissolve during natural ascent as a rising flow is as short as about 10 seconds. Therefore, in order to maintain the concentration of microorganisms in the water tank a at about 3000 to 6000 mg / l, it is necessary to increase the aeration capacity of the blower in order to supply a large amount of air to the water tank a. There was a problem. The present invention has been proposed in view of the above-mentioned problems of the prior art, and its purpose is to extend the residence time of sewage in a water tank and the contact time of air bubbles in water, and to make air bubbles finer and diffuse. An object of the present invention is to provide a wastewater treatment device with high purification efficiency and low running cost by increasing the effective utilization rate of oxygen in the supplied air to about 8%.

【０００５】[0005]

【課題を解決するための手段】本発明は、生活排水や工
場排水等の汚水を曝気処理して浄化する排水処理装置に
おいて、前記目的を達成したものである。そのため、塔
状の水槽の上部に排水管挿入孔と空気排出孔を設け、水
槽の底部に連通するとともに水槽側壁に沿って水槽底面
から水槽上面に達する排水桝を設け、水槽内の対向する
両内壁から交互に先端上り勾配の仕切板を突設させると
ともに各仕切板の先端と水槽内壁との間に間隔をあける
ことによりジグザグ状の通路を構成し、水槽底面に空気
放出用の散気管を敷設した。また本発明は、前記水槽内
部に設けた仕切板を５度乃至１０度の登り勾配で配置
し、各仕切板の先端開放部を覆うように補助仕切板を設
けたり、仕切板と仕切板で区画された空間内に、無機質
の担体を充填したり、さらに、前記仕切板の下面に担体
洗浄用の洗浄管を敷設するようにしてもよい。SUMMARY OF THE INVENTION The present invention has achieved the above object in a wastewater treatment apparatus for purifying wastewater such as domestic wastewater or industrial wastewater by aeration treatment. For this purpose, a drain pipe insertion hole and an air discharge hole are provided at the top of the tower-shaped water tank, and a drainage basin that communicates with the bottom of the water tank and extends from the bottom of the water tank to the top of the water tank along the side wall of the water tank is provided. A zigzag-shaped passage is formed by alternately protruding the partition walls with a rising edge from the inner wall and leaving a gap between the tip of each partition plate and the inner wall of the water tank, and a diffuser pipe for air release on the bottom of the water tank. Laid. Further, according to the present invention, the partition plates provided inside the water tank are arranged at an ascending gradient of 5 to 10 degrees, and an auxiliary partition plate is provided so as to cover an open end of each partition plate, or a partition plate and a partition plate are used. The partitioned space may be filled with an inorganic carrier, or a washing pipe for washing the carrier may be laid on the lower surface of the partition plate.

【０００６】[0006]

【作用】本発明によれば、曝気槽としての水槽を高水深
の塔状に形成するとともに、仕切板でジグザグ状に構成
した通路に汚水を水面から水槽底面へ向かう下降流とし
て処理し、水槽底面から水面に向かう上昇流として放出
するようにしたので、汚水の水槽滞留時間を延ばし、空
気泡の水中接触時間を延ばすことが出来る。また、水槽
底面に敷設した散気管から放出された空気泡は水中を上
昇流として自然浮上しながら第一層の仕切板下面に到達
し、同仕切板下面を勾配に沿って水平流として移動し、
仕切板と補助仕切板とで囲まれた開口部を通過して第二
層の仕切板下面に到達し、以下同様に上昇流と水平流を
繰り返しながら移動して水面に達し空気排出孔から外部
に排出される。しかも空気泡はブロワーにより強制的に
連続して供給され、仕切板により空気泡の移動、拡散が
行われて仕切板で区画された空間に空気泡が滞留するの
で、水中接触時間を延ばすことが出来る。さらに、各仕
切板で区画された空間に、無機質の担体を充填して、無
数の担体間を通過する空気泡を微細化し分散させること
により、空気泡中の酸素の溶解効率を高め、空気泡の水
中接触時間を一層延ばすことが出来る。さらにまた、各
仕切板の下面に洗浄管を並列に配管して設けて、担体に
付着増殖する過剰の各種微生物を洗浄管から高圧水を噴
射し、除去して担体を正常な状態に保守することが出来
る。According to the present invention, a water tank as an aeration tank is formed in a tower shape with a high water depth, and sewage is treated as a downward flow from a water surface to a bottom surface of the water tank in a zigzag passage formed by a partition plate. Since the water is discharged as an upward flow from the bottom toward the water surface, the residence time of the sewage in the water tank can be extended, and the contact time of the air bubbles underwater can be extended. In addition, air bubbles released from the air diffuser laid on the bottom of the water tank reach the lower surface of the first-layer partition plate while floating naturally in the water as an upward flow, and move as a horizontal flow along the lower surface of the partition plate along the gradient. ,
After passing through the opening surrounded by the partition plate and the auxiliary partition plate, it reaches the lower surface of the partition plate of the second layer, and then moves while repeating the upward flow and the horizontal flow to reach the water surface and reach the outside through the air discharge hole. Is discharged. In addition, the air bubbles are forcibly and continuously supplied by the blower, and the air bubbles are moved and diffused by the partition plate, so that the air bubbles stay in the space defined by the partition plate. I can do it. Furthermore, the space partitioned by each partition plate is filled with an inorganic carrier, and the air bubbles passing between the innumerable carriers are refined and dispersed, so that the dissolving efficiency of oxygen in the air bubbles is increased, and the air bubbles are increased. The contact time in water can be further extended. Furthermore, washing pipes are provided in parallel on the lower surface of each partition plate, and high-pressure water is injected from the washing pipe to remove excess microorganisms that adhere to and grow on the carrier, and the carrier is maintained in a normal state. I can do it.

【０００７】[0007]

【実施例】図１は本発明の一実施例を示す縦断面図であ
り、生活排水等の汚水ｇを曝気処理して浄化する排水処
理装置に適用したものである。曝気槽としての水槽ａ
は、高水深で塔状の鉄筋コンクリートで製作され、水槽
ａの上面ａ1 をコンクリート蓋で閉鎖して、同水槽ａの
コンクリート蓋に生活排水等を注水する排水管挿入孔１
を水槽右側壁ａ2 近傍に設け、同挿入孔１に排水管ｄの
末端を遊嵌させる。水槽の左側壁ａ3 側の上面に空気排
出孔２を設け、同左側壁ａ3 に添って水槽底面ａ4 から
水槽上面に達する排水桝ｂを添設し、同排水桝ｂを前記
左側壁ａ3 下部に連通口３を設けて水槽ａと連通すると
ともに、水槽ａの常水位と同一レベルで排水桝ｂから下
水管ｅを敷設して公共下水道等に接続する。また前記右
側壁ａ2 下部に沿ってブロワーと連接した曝気管４を敷
設し、同曝気管４に穴明きビニール管等で製作した複数
の空気放出用の散気管５を並列に接続して水槽底面ａ4
に敷設した。なお水槽ａの平面形状は曝気槽としての機
能を阻害しない限り自由に選択してよい。FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, which is applied to a wastewater treatment apparatus for aerating and purifying wastewater g such as domestic wastewater. Water tank a as aeration tank
Is produced in the tower-like reinforced concrete with a high depth, the upper surface a 1 aquarium a closed concrete lid, the drainage tube insertion hole 1 that injection domestic wastewater such as concrete cover of the water tank a
The provided water tank right side wall a 2 vicinity, thereby loosely fitted the ends of the drain pipe d in the insertion hole 1. The air discharge hole 2 provided on the upper surface of the left side wall a 3 side of the water tank, and additionally provided with catch basins b that along the Same sidewall a 3 extending from the water tank bottom a 4 aquarium top, the catch basin b the left side wall a 3 A communication port 3 is provided at a lower portion to communicate with the water tank a, and a drain pipe e is laid from the drainage basin b at the same level as the normal water level of the water tank a to connect to a public sewer. Also, the laying aeration tube 4 which is connected with the blower along the right wall a 2 lower, by connecting a diffusing pipe 5 for a plurality of air discharge fabricated at the same aeration tube 4 in the perforated plastic pipe or the like in parallel Water tank bottom a 4
Was laid. The plane shape of the water tank a may be freely selected as long as the function as the aeration tank is not hindered.

【０００８】また、前記水槽ａ内部を層状に区画する非
腐食性材料で所要強度を有する平板状に形成した仕切板
６を５度乃至１０度の先端登り勾配に配置し、両側壁ａ
2 、ａ3 から仕切板６の勾配上端を左右交互に開放して
４層設けることによりジグザグ状の通路を構成する。ま
た、合成樹脂板等で形成した補助仕切板７を前記仕切板
６の勾配上端の開放部を覆うように最上層の仕切板６を
除く他の３層の仕切板６の上面と適当間隔を開け、かつ
前記仕切板６よりやや急な下がり勾配に設ける。なお仕
切板６の区画数は、処理対象となる水量、水質、水槽形
状によって自由に選択してよい。さらに、前記仕切板６
と仕切板６で区画された３層の空間内に、比重が０．８
乃至１．１ｇ／ｃm3、粒径が１ｃｍ程度の人工骨材等の
無機質の担体ｃを充填する。さらにまた、前記仕切板６
の下面に添せて高圧ポンプと連接した送水管８と並列に
接続した穴明きビニール管等で製作した複数の担体ｃ洗
浄用の洗浄管９を敷設した。A partition plate 6 formed of a non-corrosive material for partitioning the inside of the water tank a into a layered form and having a required strength is disposed at a tip-up gradient of 5 to 10 degrees.
2, constitutes a zigzag passage by open from a 3 gradient upper end of the partition plate 6 in the left and right alternately provided four layers. Also, the auxiliary partition plate 7 formed of a synthetic resin plate or the like is placed at an appropriate distance from the upper surface of the other three-layer partition plate 6 except for the uppermost partition plate 6 so as to cover the open portion at the upper end of the slope of the partition plate 6. It is opened and provided at a slightly lower slope than the partition plate 6. The number of partitions of the partition plate 6 may be freely selected depending on the amount of water to be treated, the water quality, and the shape of the water tank. Further, the partition plate 6
And a specific gravity of 0.8 in the three-layer space partitioned by the partition plate 6
And an inorganic carrier c such as artificial aggregate having a particle size of about 1 cm to 1.1 g / cm 3 . Furthermore, the partition plate 6
A washing pipe 9 for washing a plurality of carriers c made of a perforated vinyl pipe or the like connected in parallel with a water supply pipe 8 connected to a high-pressure pump was laid along the lower surface of.

【０００９】而して、本実施例の排水処理装置によれ
ば、生活排水等の汚水ｇは排水管ｄを通って水槽上部の
排水管挿入孔１に遊嵌した排水管ｄ末端より水槽ａに注
水される。注水された汚水ｇは水面から下降流となって
浄化されながらジグザグ状の通路を通り、さらに連通穴
３を通過して排水桝ｂへ排水され、次いで排水桝ｂから
下水管ｅを経て公共下水道等に排水される。一方、水槽
底面ａ4 に敷設した散気管５から水中に曝気された空気
泡ｆは、水槽底面ａ4 から上昇流となって水面に到達し
空気排出孔２から外部に排出されるが、前記空気泡ｆ中
の酸素は水中を上昇中に水と溶解して各種微生物を育成
し、活性化して、各種微生物により汚水ｇを曝気処理し
て浄化する。従って曝気槽としての水槽内では、汚水ｇ
を水面から水槽底面ａ4 へ向かう下降流として排水し、
空気泡ｆを水槽底面ａ4 から水面に向かう上昇流として
排出するようにしたので、汚水ｇの水槽滞留時間を延ば
し、空気泡ｆの酸素が溶解するのに必要な水中接触時間
を延ばすことが出来る。 また、前記水槽ａの底面ａ4
に敷設した散気管５から放出された空気泡ｆは、上昇流
として自然浮上しながら第一層の仕切板６下面に到達
し、同仕切板６下面を勾配に沿って水平流として移動し
て仕切板６と補助仕切板７とで囲まれた開口部を経て第
二層の仕切板６下面に到達し、以下同様に上昇流と水平
流を繰り返しながら移動し水面に達し、空気排出孔２か
ら外部に排出される。しかも空気泡ｆはブロワーにより
強制的に連続して供給され、仕切板６により空気泡ｆの
移動、拡散が行われて、仕切板６で区画された空間に空
気泡ｆが滞留するので、水中接触時間を一層延ばすこと
が出来る。According to the wastewater treatment apparatus of the present embodiment, the wastewater g such as domestic wastewater passes through the drainpipe d and is inserted into the drainpipe insertion hole 1 in the upper part of the tank with a drainpipe d from the end of the drainpipe d. It is poured into water. The injected sewage g passes through a zigzag-shaped passage while being purified as a downward flow from the surface of the water, is further discharged through the communication hole 3 to the drainage basin b, and then from the drainage basin b through the sewer pipe e to the public sewer. It is drained to etc. On the other hand, the water tank bottom a 4 air bubbles f from diffusing pipe 5 was laid was aerated in water is reached the water surface becomes upward flow from the water tank bottom a 4 is discharged from the air discharge hole 2 to the outside, the The oxygen in the air bubbles f dissolves in the water while rising in the water to grow and activate various microorganisms, and the various microorganisms aerate and purify the wastewater g. Therefore, sewage g
The drained as downflow toward the water tank bottom a 4 from the water surface,
Since air bubbles f and to discharge upflow toward the surface of the water from the water tank bottom a 4, extending the aquarium residence time of sewage g, and extend the water contact time required for dissolution of oxygen air bubbles f I can do it. Also, the bottom surface a 4 of the water tank a
The air bubbles f released from the air diffuser 5 laid on the lower surface reach the lower surface of the first-layer partition plate 6 while naturally floating as an upward flow, and move as a horizontal flow along the lower surface of the partition plate 6 along the gradient. After reaching the lower surface of the second-layer partition plate 6 through an opening surrounded by the partition plate 6 and the auxiliary partition plate 7, the air discharge hole 2 moves in the same manner while repeating a rising flow and a horizontal flow to reach the water surface. Is discharged to the outside. In addition, the air bubbles f are forcibly and continuously supplied by the blower, and the movement and diffusion of the air bubbles f are performed by the partition plate 6, and the air bubbles f stay in the space defined by the partition plate 6. The contact time can be further extended.

【００１０】さらに、前記仕切板６と仕切板６で区画さ
れた空間に、比重が０．８乃至１．１ｇ／ｃm3、粒径が
１ｃｍ程度の無数の人工骨材等からなる無機質の担体ｃ
を充填して、前記無数の担体ｃ間を通過する空気泡ｆを
微細化し分散させることにより、空気泡ｆ中の酸素の溶
解効率を高め、空気泡ｆの水中接触時間を一層延ばすこ
とが出来る。さらにまた、前記仕切板の下面に洗浄管を
並列に配管して設けて、担体に付着増殖する過剰の各種
微生物を洗浄管から高圧水を噴射し、除去して担体を正
常な状態に保守することが出来る。なお実験によれば、
空気泡中の酸素の有効利用率は約８％と高くなって、ブ
ロワーの電力使用料は従来に比べて１０％程度削減する
ことが出来た。さらにまた、前記仕切板６の下面に洗浄
管９を並列に配管して設けて、担体ｃに付着増殖する過
剰の各種微生物を洗浄管９から高圧水を噴射し、除去し
て担体ｃを正常な状態に保守することが出来る。Further, in the partition defined by the partition plate 6 and the partition plate 6, an inorganic carrier made of countless artificial aggregates or the like having a specific gravity of 0.8 to 1.1 g / cm 3 and a particle size of about 1 cm. c
And by dispersing and dispersing the air bubbles f passing between the innumerable carriers c, the efficiency of dissolving oxygen in the air bubbles f can be increased, and the contact time of the air bubbles f in water can be further extended. . Furthermore, washing pipes are provided in parallel on the lower surface of the partition plate, and excess microorganisms adhering to and growing on the carrier are sprayed with high-pressure water from the washing pipe and removed to maintain the carrier in a normal state. I can do it. According to the experiment,
The effective utilization rate of oxygen in the air bubbles was as high as about 8%, and the power usage fee of the blower was reduced by about 10% as compared with the conventional case. Further, washing pipes 9 are provided in parallel on the lower surface of the partition plate 6, and various kinds of microorganisms adhering to and growing on the carrier c are sprayed with high-pressure water from the washing pipe 9 to remove the microorganisms. Maintenance.

【００１１】[0011]

【発明の効果】本発明によれば、曝気槽としての水槽を
高水深の塔状に形成するとともに、汚水を水面から水槽
底面へ向かう下降流として排水し、空気泡を水槽底面か
ら水面に向かう上昇流として排出するようにしたので、
汚水の水槽滞留時間を延ばし、空気泡の酸素が溶解する
のに必要な水中接触時間を延ばすことが出来るので、従
来の曝気槽に比べて建設敷地面積を低減するとともに、
汚水の浄化効率が高まり、動力料等のランニングコスト
を低減することが出来る。また、仕切板により空気泡の
移動、拡散が行われて仕切板で区画された空間に空気泡
が滞留するので、水中接触時間を一層延ばすことが出
来、一層汚水の浄化効率が高まり、ランニングコストを
低減することが出来る。さらに、無機質の担体を充填し
て、無数の担体間を通過する空気泡を微細化し分散させ
ることにより、空気泡中の酸素の溶解効率を高め、空気
泡の水中接触時間を一層延ばすことが出来るので、なお
一層汚水の浄化効率が高まり、ランニングコストを低減
することが出来る。さらにまた、担体に付着増殖する過
剰の各種微生物を洗浄管から高圧水を噴射し、除去して
担体を正常な状態に保守することが出来るので、曝気槽
としての処理能力を正常に維持することができる。According to the present invention, a water tank as an aeration tank is formed in a tower shape with a high water depth, and sewage is drained as a downward flow from the water surface to the water tank bottom, and air bubbles flow from the water tank bottom to the water surface. As it was made to discharge as upflow,
The length of residence time in the sewage tank can be extended, and the contact time in water required to dissolve the oxygen in the air bubbles can be extended, thus reducing the construction site area compared to conventional aeration tanks,
The purification efficiency of sewage is increased, and running costs such as power charges can be reduced. In addition, the movement and diffusion of the air bubbles are performed by the partition plate, and the air bubbles stay in the space defined by the partition plate, so that the contact time in water can be further extended, the purification efficiency of sewage can be further improved, and the running cost can be increased. Can be reduced. Furthermore, by filling the inorganic carrier, and disintegrating and dispersing the air bubbles passing between the myriad of carriers, the dissolving efficiency of oxygen in the air bubbles can be increased, and the contact time of the air bubbles in water can be further extended. Therefore, the purification efficiency of the sewage is further enhanced, and the running cost can be reduced. Furthermore, high-pressure water can be sprayed from the washing pipe to remove excess microorganisms that adhere to and grow on the carrier, and the carrier can be maintained in a normal state by maintaining it. Can be.

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

【図１】本発明の排水処理装置の一実施例を示す縦断面
図である。FIG. 1 is a longitudinal sectional view showing one embodiment of a wastewater treatment apparatus of the present invention.

【図２】従来例の排水処理装置の縦断面図である。FIG. 2 is a longitudinal sectional view of a conventional wastewater treatment device.

【符号の説明】[Explanation of symbols]

ａ 水槽 ｃ 担体 １ 排水管挿入孔 ５ 散気管 ６ 仕切板 ９ 洗浄管 a water tank c carrier 1 drain pipe insertion hole 5 diffuser pipe 6 partition plate 9 washing pipe

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) C02F 3/06 C02F 3/10 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) C02F 3/06 C02F 3/10

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 生活排水や工場排水等の汚水を曝気処理
して浄化する排水処理装置において、塔状の水槽の上部
に排水管挿入孔と空気排出孔を設け、水槽の底部に連通
するとともに水槽側壁に添って水槽底面から水槽上面に
達する排水桝を設け、水槽内の対向する両内壁から交互
に先端上り勾配の仕切板を突設させるとともに各仕切板
の先端と水槽内壁との間に間隔をあけることによりジグ
ザグ状の通路を構成し、水槽底面に空気放出用の散気管
を敷設したことを特徴とする排水処理装置。1. A wastewater treatment apparatus for aerating and purifying sewage such as domestic wastewater and industrial wastewater, wherein a drain pipe insertion hole and an air discharge hole are provided at the top of a tower-shaped water tank to communicate with the bottom of the water tank. A drainage basin extending from the bottom of the water tank to the top of the water tank is provided along the side wall of the water tank.Partition plates with an upward slope are alternately protruded from both inner walls facing the inside of the water tank, and between the end of each partition plate and the inner wall of the water tank. A wastewater treatment apparatus comprising a zigzag passage formed by leaving an interval, and a diffuser pipe for releasing air being laid on a bottom surface of the water tank. 【請求項２】 水槽内に設けた各仕切板を５度乃至１０
度の登り勾配に配置し、各仕切板の開放部を適当間隔を
開けて覆うように補助仕切板を設けたことを特徴とする
請求項１記載の排水処理装置。2. The method according to claim 1, wherein each partition plate provided in the water tank is 5 to 10 degrees.
2. The wastewater treatment apparatus according to claim 1, wherein an auxiliary partition plate is provided so as to cover an open portion of each partition plate at an appropriate interval while being arranged on a steep climb. 【請求項３】 各仕切板で区画された空間内に、無機質
の担体を充填したことを特徴とする請求項１、２記載の
排水処理装置。3. The wastewater treatment apparatus according to claim 1, wherein a space defined by each partition plate is filled with an inorganic carrier. 【請求項４】 各仕切板の下面に担体洗浄用の洗浄管を
敷設したことを特徴とする請求項１、２、３記載の排水
処理装置。4. The wastewater treatment apparatus according to claim 1, wherein a washing pipe for washing the carrier is laid on a lower surface of each partition plate.
JP4108798A 1992-04-01 1992-04-01 Wastewater treatment equipment Expired - Fee Related JP2986284B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4108798A JP2986284B2 (en) 1992-04-01 1992-04-01 Wastewater treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4108798A JP2986284B2 (en) 1992-04-01 1992-04-01 Wastewater treatment equipment

Publications (2)

Publication Number Publication Date
JPH05277479A JPH05277479A (en) 1993-10-26
JP2986284B2 true JP2986284B2 (en) 1999-12-06

Family

ID=14493755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4108798A Expired - Fee Related JP2986284B2 (en) 1992-04-01 1992-04-01 Wastewater treatment equipment

Country Status (1)

Country Link
JP (1) JP2986284B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100913147B1 (en) * 2008-12-03 2009-08-19 황대식 Bubble quarantine tank for water examination apparatus
CN107055781B (en) * 2017-03-31 2023-10-24 长春工程学院 Device and method for treating urban sewage by vertical internal and external three-circulation continuous flow process

Also Published As

Publication number Publication date
JPH05277479A (en) 1993-10-26

Similar Documents

Publication Publication Date Title
US5536420A (en) Vertical drainage drying bed for waste sludge and an intensified method of treating wastewater
JP2003015520A (en) Sewage treatment model
JP2986284B2 (en) Wastewater treatment equipment
KR920005952B1 (en) Purifying apparatus for septic tank
JP3469797B2 (en) Sewage treatment method and apparatus
RU198056U1 (en) Open water biofilter
JP4032367B2 (en) Water purification equipment
CN107585952A (en) A kind of sewage-treatment plant and its sewage treatment process
CN208762235U (en) A kind of biomembrane reaction of high order equipment
CN207210214U (en) A kind of sewage-treatment plant
KR20020086777A (en) Waste Water Treatment Equipment and Sequencing Batch Reactor System with using This
JPS6274489A (en) Recirculation aeration type sewage treatment apparatus
JP3026499U (en) Circulation type human waste treatment equipment
JPS6221360Y2 (en)
CN112777729B (en) Small-sized distributed sewage treatment system and operation method thereof
JP4411187B2 (en) Sewage treatment equipment
CN2651240Y (en) Aeration biological filtering pool
CN107043159A (en) A kind of gas stripping type sludge refluxing apparatus suitable for small-sized sewage treating system
JPH0694036B2 (en) Organic wastewater biological treatment equipment
JP3652473B2 (en) Wastewater treatment system
JPS60118292A (en) Waste water treating apparatus
JPH0642793Y2 (en) Aerobic immersion ▲ Floor ▼ Floor equipment
JP2002273472A (en) Water cleaning tank, water cleaning equipment and water cleaning method
RU2004120239A (en) METHOD FOR SEWAGE TREATMENT AND DEVICE FOR ITS IMPLEMENTATION
JPH0127914Y2 (en)

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees