JP4058271B2

JP4058271B2 - Aeration tank water level adjustment device

Info

Publication number: JP4058271B2
Application number: JP2002004177A
Authority: JP
Inventors: 秀治武元; 昌雄野沢
Original assignee: Kirin Brewery Co Ltd
Current assignee: Kirin Brewery Co Ltd
Priority date: 2002-01-11
Filing date: 2002-01-11
Publication date: 2008-03-05
Anticipated expiration: 2022-01-11
Also published as: JP2003200189A

Description

【０００１】
【発明の属する技術分野】
本発明は、主として、ビール等の醗酵麦芽飲料の製造過程で排出される有機性排水を活性汚泥処理する排水処理装置の曝気槽において、排水の負荷変動に伴ない、曝気槽中の容積負荷および汚泥負荷を適正な値に調整して運転するために曝気槽に付加される水位調整装置に関する。
【０００２】
【従来の技術】
例えば、ビール等の醗酵麦芽飲料の製造工程で排出される有機性排水（以下、単に「排水」と称する）は、製造設備に設置された排水処理装置（排水処理設備）で処理される。排水処理装置は、通常、調整槽、曝気槽、沈殿槽などを備えており、曝気槽においては、いわゆる活性汚泥処理が行われる。
【０００３】
このような排水処理操作において、排水処理装置に流入される排水量（排水負荷）は、一般に、製造設備の稼動状況により増減する。そして、従来より、排水負荷が減少した場合には、曝気槽の縮小運転や制限曝気運転により対応していた。
【０００４】
縮小運転としては、例えば、幾槽にも予め分割して形成してある曝気槽設備の第１槽を堰で区切り、排水の流入を直接曝気槽設備の第２槽に流入させて活性汚泥の処理時間を短縮させるような手法が例示できる。
【０００５】
また、制限曝気運転としては、幾槽に分割されて構成されている曝気槽設備の各槽において、活性汚泥法の処理能力を低下させる手法が例示できる。これは、排水と汚泥の接触率を低下させるための酸素供給量を減少させて、槽内の乱流状態を低下させて処理する方法である。
【０００６】
【発明が解決しようとする課題】
しかしながら、上記の従来のいずれの曝気処理方法を用いたとしても、排水負荷に見合った最適な処理を行うことは極めて困難である。すなわち、上記の縮小運転では、分割して形成された曝気槽の一区分が必ずしも排水負荷の減少量に一致することは極めてまれであり、調整の自由度が極めて低いといわざるを得ない。
【０００７】
また、制限曝気運転では、排水負荷の減少に伴ない、排水と汚泥の接触率を減少させるために酸素供給量を減少させるのであるが、容積負荷を一定とし、酸素供給量のみで汚泥負荷を最適にすることはきわめて困難であると言える。
【０００８】
このような実情のもとに本発明は創案されたものであって、その目的は、簡易な方法で、排水負荷の変動に対して、曝気槽中の容量負荷および汚泥負荷を適正な値に調整して処理することができる排水処理装置における曝気槽の水位の高さ調整装置を提供することにある。
【０００９】
【課題を解決するための手段】
上記課題を解決するために、本発明は、排水処理装置における曝気槽の水位を調整するための水位調整装置であって、
該装置は、曝気槽の液面高さを調整するための可動筒体と、この可動筒体を高さ調整とともに収納可能にする収納筒体と、前記可動筒体を任意に可動させるための駆動機構部を備え、
前記可動筒体はその上部に排水を流入させるための開口部を備えるとともに、前記収納筒体の中にスライド移動して収納可能に設置されており、このスライド移動操作によって水位高さが調整され、可動筒体と収納筒体との組み合わせ体は、水位調整のために次工程槽に連通可能に形成されており、
前記駆動機構部は、可動筒体に接続された接続部材と、該接続部材と係合しつつ、該接続部材を昇降させる駆動本体とを備え、
前記駆動本体の駆動により係合された接続部材を介して可動筒体が昇降することにより曝気槽の水位調整が行われてなるように構成される。
【００１０】
また、本発明は、排水処理装置における曝気槽の水位を調整するための水位調整装置であって、該装置は、曝気槽の液面高さを調整するための可動筒体と、この可動筒体を高さ調整とともに収納可能にする収納筒体と、前記可動筒体を任意に可動させるための駆動機構部を備え、前記可動筒体はその上部に排水を流入させるための開口部を備えるとともに、前記収納筒体の中にスライド移動して収納可能に設置されており、このスライド移動操作によって水位高さが調整され、可動筒体と収納筒体との組み合わせ体は、水位調整のために次工程槽に連通可能に形成されており、前記駆動機構部は、前記可動筒体の上部に接続された棒状体からなる接続部材を有し、該接続部材と係合しつつ、該接続部材を昇降させる駆動本体とを備え、前記駆動本体の駆動により係合された棒状体からなる接続部材を介して可動筒体が昇降することにより曝気槽の水位調整が行われるように構成される。
本発明の好ましい態様として、昇降する棒状体の上部には透明ないし半透明の樹脂製筒状体が被されており、当該筒状体には目盛りが記されており、筒状体を通して内側に見ることのできる棒状体の基準位置との関係で曝気槽の水位が分るように構成される。
【００１１】
本発明の好ましい態様として、前記駆動本体は、駆動冶具に接続された第１の歯車と、この第１の歯車に噛合する第２の歯車を備え、前記駆動冶具を回転させることにより、前記接続部材が昇降可能になるように構成される。
【００１２】
本発明の好ましい態様として、前記駆動本体は、駆動冶具に接続された第１のべベルギアと、この第１のべベルギアに噛合する第２のべベルギアを備え、第２のベベルギアは回転スリーブに結合され、当該回転スリーブの軸方向に形成されたネジ部と前記昇降可能な棒状体の軸方向に形成されたのネジ部とが噛合しており、前記駆動冶具を回転させることにより、前記接続部材が昇降可能になるように構成される。
【００１６】
本発明の好ましい態様として、前記排水が醗酵麦芽飲料の製造過程で排出される有機性排水として構成される。
【００１７】
【発明の実施の形態】
以下、本発明の実施の形態をビール等の醗酵麦芽飲料を製造する設備に設置してある排水処理装置を代表して説明する。まず最初に、本発明の理解が容易になるように、本発明の曝気槽の水位調整装置が用いられる一般的な排水処理プロセス（排水処理装置）について、図３に基づいて簡単に説明しておく。
【００１８】
図３において、図面の左方から流入してきた被処理液である排水Ｑ１（通常、ビール等の醗酵麦芽飲料の製造工程で排出される排水）は、バースクリーンを経て、夾雑物等が除去されて調整槽に入る。この調整槽では、排水の受け入れとともに、受け入れた排水濃度の均一化、および処理すべき排水の量の調整が行われる。この調整槽で所定の調整が行われた排水は、次工程の曝気槽へと送り込まれる。この曝気槽では、排水と活性汚泥の混合および空気の供給が行われ、その結果、汚泥による混合・吸着・酸化等の化学的ないし物理的処理が行われる。
【００１９】
この曝気槽で所定の処理が行われた処理水は、次工程の沈殿槽へと送り込まれる。この沈殿槽では、汚泥と処理水の分離、汚泥の濃縮、汚泥の返送が行われ、この沈殿槽を経て活性汚泥処理された処理水Ｑ２が得られる。
【００２０】
本発明の曝気槽の水位調整装置１は、排水処理装置における曝気槽の水位調整とともに、曝気処理済みの処理水を次工程槽（例えば、沈殿層）に移送させるために、通常、曝気槽の中でも下流側の位置に設置される。理想的には最下流が最適位置である。図１は、槽形態の曝気槽の下流側の一部が模式的に示されており、水位調整装置１は、槽形態の曝気槽のコーナーに敷設された略長方形板である架台９０の上に実質的に設置されている。符号９１，９１は、作業員による作業の安全性を考慮して設置された手摺である。
【００２１】
本発明の曝気槽の水位調整装置１は、図１に示されるように、曝気槽の液面高さを調整するための可動筒体１１と、この可動筒体１１を高さ調整とともに収納可能にする収納筒体１５と、可動筒体１１を任意に可動させるための駆動機構部５０を備えている。
【００２２】
可動筒体１１はその上部に排水を流入させるための開口部１１ａを備え、可動筒体１１と収納筒体１５との組み合わせ体は、水位調整のために次工程槽（例えば、沈殿層）に下流側口１５ａを介して連通可能になっている。開口部１１ａは、排水の流入をスムースに行うために図示のごとくいわゆるラッパ状の受け口形状とすることが好ましい。
【００２３】
可動筒体１１は、その筒部が、収納筒体１５の中にスライド移動して収納可能に設置されており、これにより、水位高さが実質的に調整される。図１には移動筒体１１が最大まで伸びた状態が示されており、ここで曝気槽の液面高さは、Ｈ１として示される。この一方で、可動筒体１１が実質的にスライド収納され最も低くなった状態が、一点鎖線で示されており、ここで曝気槽の液面高さは、Ｈ２（点線表示）として示される。もちろん２つの部材１１，１５が組み合わされ、摺動する部分では、液体のリークはないようにシールされている。位置調整範囲（Ｈ１−Ｈ２）は、１．５ｍ程度とされる。また、位置調整は曝気槽の最上面から底面までの範囲に設定することも可能である。
【００２４】
前記駆動機構部５０は、可動筒体１１の上部に接続された接続部材５１（本実施の形態では棒状の棒状体５１を好適例として例示しており、以下「棒状体１５」と称す）を有している。さらに、前記駆動機構部５０は、棒状体５１と係合しつつ、棒状体５１を昇降させる駆動本体６０とを備えている。そして、駆動本体６０の駆動により係合された棒状体５１を介して可動筒体１１が昇降することにより曝気槽の水位調整が行われてなるように構成されている。なお、接続部材５１である棒状体５１の変形例として、ワイヤー等の紐など、直接に動力が伝達できるものが例示できる。
【００２５】
本発明における前記駆動本体６０の好適な実施例が図２に示される。図２に示される駆動本体６０は、図１の紙面奥方向から手前に向けて見た図面である。
図２に示されるように駆動本体６０は、駆動冶具の好適例であるハンドル６１に接続された第１のべベルギア６５と、この第１のべベルギア６５に噛合するとともに作用軸を９０度変える第２のべベルギア６７を備えている。
【００２６】
そして、この第２のベベルギア６７は、回転スリーブ７０に固着・結合されている。この回転スリーブ７０の軸方向内面には、図示しないネジ部７０ａが形成されているとともに、これと係合する前記昇降可能な棒状体５１の軸方向外周面には図示しないネジ部５１ａが形成されている。そして、これらのネジ部７０ａ，５１ａは、棒状体５１が昇降可能（図２の矢印（イ）−（ロ）方向に移動可能）となるように噛合されている。すなわち、前記ハンドル６１を回転させることにより、棒状体５１が昇降可能となるように構成されているのである。
【００２７】
本実施の形態では、上述のごとく棒状体５１の表面に、例えばスパイラル状のネジ部５１ａが形成されており、このネジ部を保護するため、および目盛りを記すために、図１に示されるように、昇降する棒状体５１の上部には、例えば、透明ないしは半透明の樹脂製筒状体８０（例えば、透明アクリルパイプ）が被されており、この筒状体８０に目盛りが記されて、筒状体８０を通して内側に見ることのできる棒状体５１の基準位置（例えば、棒状体５１の上部端部）との関係で曝気槽の水位がわかるようになっている。
【００２８】
すなわち、ハンドル６１を回転させることによって、棒状体５１の上部端部は昇降し、その上部端部が位置する箇所に、例えば、該当する曝気槽の水位を記しておくことにより、水位調整を目視で確認しながら行うことができる。つまり、駆動本体６０を手動で操作する場合には、前記棒状体５１の移動位置と曝気槽の水位との関係を示す視認マーク機構が設置されているのである。
【００２９】
もちろん、手動操作に代えて、自動制御とすることも可能である。この場合には、例えば、ビール等の醗酵麦芽飲料の製造過程で排出される有機性排水の流動変動を自動的に検知する流量検知装置を用いるとともに、ハンドル操作機構を、位置が自動で監視できる自動制御可能な回動装置や、次工程へ搬送する搬送口に設置して搬送量を自動制御する調整弁装置に置き換えればよい。
【００３０】
また、本発明においては、排水がビール等の醗酵麦芽飲料の製造過程で排出される有機性排水であり、その排水の物性（例えば、排水に含有される有機物の種類や濃度）の変化は実質的に生じない。そして、本発明においては、曝気槽へ流入する排水量に対する曝気槽の最適水位のデータが予め準備されており、この最適水位データに基づいて、曝気槽へ流入する排水量の変化に対する曝気槽の水位調整が行われる。すなわち、排水量の変動に伴ない、最適な曝気槽の水位が決定され、この最適水位となるように、水位調整装置が作用するのである。
【００３１】
【発明の効果】
上述してきたように、本発明の曝気槽の水位調整装置を用いることにより、従来から使用されているいわゆる縮小運転や制限曝気運転方法を用いる必要がなくなり、排水負荷に対して最適な容量負荷、並びに汚泥負荷に調整することができ、理想的な処理を実現させることが可能となる。
【図面の簡単な説明】
【図１】曝気槽内に本発明の水位調整装置が設置された状態の一例を示す概略図である。
【図２】本発明の水位調整装置の駆動本体の一例を示す断面図である。
【図３】本発明の曝気槽の水位調整装置が用いられる一般的な排水処理プロセス（排水処理装置フロー）を示す図面である。
【符号の説明】
１…水位調整装置
１１…可動筒体
１５…収納筒体
５０…駆動機構部
５１…棒状体
６０…駆動本体[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to an aeration tank of a wastewater treatment apparatus for treating an organic wastewater discharged in the process of producing a fermented malt beverage such as beer with an activated sludge. The present invention relates to a water level adjusting device that is added to an aeration tank in order to adjust the sludge load to an appropriate value for operation.
[0002]
[Prior art]
For example, organic wastewater (hereinafter simply referred to as “drainage”) discharged in the production process of a fermented malt beverage such as beer is processed by a wastewater treatment device (drainage treatment facility) installed in the production facility. The wastewater treatment apparatus usually includes a regulating tank, an aeration tank, a settling tank, and so on, and so-called activated sludge treatment is performed in the aeration tank.
[0003]
In such wastewater treatment operations, the amount of wastewater (drainage load) that flows into the wastewater treatment apparatus generally increases or decreases depending on the operating conditions of the manufacturing equipment. Conventionally, when the drainage load is reduced, the reduction operation of the aeration tank and the limited aeration operation are used.
[0004]
As the reduction operation, for example, the first tank of the aeration tank equipment that is divided into several tanks in advance is divided by a weir, and the inflow of wastewater is directly flowed into the second tank of the aeration tank equipment to A method for shortening the processing time can be exemplified.
[0005]
Moreover, as a limited aeration operation, the method of reducing the processing capacity of an activated sludge method can be illustrated in each tank of the aeration tank equipment divided | segmented into several tanks. This is a method of processing by reducing the amount of oxygen supply for reducing the contact rate between the waste water and sludge and reducing the turbulent flow state in the tank.
[0006]
[Problems to be solved by the invention]
However, even if any of the conventional aeration treatment methods described above is used, it is extremely difficult to perform the optimum treatment corresponding to the drainage load. That is, in the above-described reduction operation, it is extremely rare that one section of the aeration tank formed in a divided manner coincides with the amount of decrease in the drainage load, and the degree of freedom in adjustment is extremely low.
[0007]
In limited aeration operation, as the drainage load decreases, the oxygen supply rate is reduced to reduce the contact rate between wastewater and sludge. However, the volumetric load is kept constant, and the sludge load is reduced only by the oxygen supply rate. It can be said that it is extremely difficult to optimize.
[0008]
The present invention has been devised under such circumstances, and its purpose is to make the capacity load and sludge load in the aeration tank appropriate values with respect to fluctuations in drainage load by a simple method. An object of the present invention is to provide an apparatus for adjusting the height of the water level of an aeration tank in a wastewater treatment apparatus that can be adjusted and treated.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is a water level adjusting device for adjusting the water level of an aeration tank in a wastewater treatment device,
The apparatus includes a movable cylinder for adjusting the liquid surface height of the aeration tank, a storage cylinder that allows the movable cylinder to be housed together with height adjustment, and for arbitrarily moving the movable cylinder. With a drive mechanism,
The movable cylinder is provided with an opening for allowing drainage to flow into the upper part thereof, and is installed so as to be slidable and storable into the storage cylinder, and the water level height is adjusted by this sliding movement operation. The combination of the movable cylinder and the storage cylinder is formed so that it can communicate with the next process tank for water level adjustment .
The drive mechanism includes a connection member connected to the movable cylinder, and a drive body that raises and lowers the connection member while engaging the connection member,
The water level of the aeration tank is adjusted by moving the movable cylinder up and down via a connecting member engaged by driving of the drive main body .
[0010]
The present invention also relates to a water level adjusting device for adjusting the water level of the aeration tank in the waste water treatment apparatus, the device comprising a movable cylinder for adjusting the liquid level height of the aeration tank, and the movable cylinder A storage cylinder that allows the body to be stored together with height adjustment, and a drive mechanism for arbitrarily moving the movable cylinder, the movable cylinder having an opening for allowing drainage to flow into the upper part thereof At the same time, it is installed so as to be slidable and storable in the storage cylinder, and the water level height is adjusted by this sliding movement operation. The drive mechanism has a connecting member made of a rod-like body connected to the upper part of the movable cylinder, and the connection member is engaged with the connecting member while being engaged with the connecting member. A drive main body for raising and lowering the member, Configured as the water level adjustment of the aeration tank is carried out by the movable cylindrical member through a connecting member made of engaged rod-like body by the driving of the main body moves up and down.
As a preferred embodiment of the present invention, a transparent or translucent resin cylindrical body is covered on the upper part of the rod-like body that moves up and down, and a scale is written on the cylindrical body. It is configured so that the water level of the aeration tank is known in relation to the reference position of the rod-shaped body that can be seen.
[0011]
As a preferred aspect of the present invention, the drive main body includes a first gear connected to the drive jig and a second gear engaged with the first gear, and the connection is achieved by rotating the drive jig. The member is configured to be movable up and down.
[0012]
As a preferred aspect of the present invention, the drive main body includes a first bevel gear connected to a drive jig and a second bevel gear meshing with the first bevel gear, and the second bevel gear is attached to the rotating sleeve. The screw portion that is coupled and formed in the axial direction of the rotating sleeve and the screw portion that is formed in the axial direction of the up-and-down rod-shaped body mesh with each other, and the connection is achieved by rotating the drive jig. The member is configured to be movable up and down.
[0016]
As a preferred embodiment of the present invention, the waste water is configured as an organic waste water discharged in the process of producing a fermented malt beverage.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described as a representative of a wastewater treatment apparatus installed in a facility for producing a fermented malt beverage such as beer. First, in order to facilitate understanding of the present invention, a general wastewater treatment process (drainage treatment apparatus) in which the water level adjusting device of the aeration tank of the present invention is used will be briefly described with reference to FIG. deep.
[0018]
In FIG. 3, wastewater Q1, which is the liquid to be treated which flows in from the left side of the drawing (usually, wastewater discharged in the production process of fermented malt beverages such as beer), passes through a bar screen to remove impurities and the like. Enter the adjustment tank. In this adjustment tank, not only waste water is received, but also the concentration of the received waste water is made uniform and the amount of waste water to be treated is adjusted. The waste water that has been subjected to the predetermined adjustment in this adjustment tank is sent to the aeration tank of the next process. In this aeration tank, waste water and activated sludge are mixed and air is supplied. As a result, chemical or physical treatment such as mixing, adsorption, and oxidation with sludge is performed.
[0019]
The treated water that has been subjected to the predetermined treatment in this aeration tank is sent to the precipitation tank in the next step. In this sedimentation tank, sludge and treated water are separated, sludge is concentrated, and sludge is returned, and treated water Q2 treated with activated sludge is obtained through this sedimentation tank.
[0020]
The aeration tank water level adjusting device 1 according to the present invention usually adjusts the water level of the aeration tank in the waste water treatment apparatus and transfers the aerated treated water to the next process tank (for example, a precipitation layer). Above all, it is installed at the downstream position. Ideally, the most downstream position is the optimum position. FIG. 1 schematically shows a part of the downstream side of a tank-type aeration tank, and the water level adjusting device 1 is a top of a pedestal 90 that is a substantially rectangular plate laid at the corner of the tank-type aeration tank. Is substantially installed. Reference numerals 91 and 91 are handrails installed in consideration of the safety of work by workers.
[0021]
As shown in FIG. 1, the aeration tank water level adjusting device 1 of the present invention can accommodate a movable cylinder 11 for adjusting the liquid level of the aeration tank, and the movable cylinder 11 with height adjustment. And a drive mechanism 50 for arbitrarily moving the movable cylinder 11.
[0022]
The movable cylinder 11 is provided with an opening 11a for allowing drainage to flow into the upper part thereof, and the combination of the movable cylinder 11 and the storage cylinder 15 is provided in a next process tank (for example, a sediment layer) for adjusting the water level. Communication is possible via the downstream port 15a. It is preferable that the opening 11a has a so-called trumpet-shaped receiving port shape as shown in the drawing in order to smoothly flow in the drainage.
[0023]
The movable cylinder 11 is installed so that its cylinder portion can be slid and stored in the storage cylinder 15, and the water level height is thereby substantially adjusted. FIG. 1 shows a state in which the movable cylinder 11 is extended to the maximum. Here, the liquid level of the aeration tank is indicated as H1. On the other hand, the state in which the movable cylinder 11 is substantially slid and stored in the lowest position is indicated by a one-dot chain line. Here, the liquid level of the aeration tank is indicated as H2 (dotted line display). Of course, the two members 11 and 15 are combined, and the sliding portion is sealed so as not to leak liquid. The position adjustment range (H1-H2) is about 1.5 m. Further, the position adjustment can be set in a range from the top surface to the bottom surface of the aeration tank.
[0024]
The drive mechanism unit 50 includes a connecting member 51 connected to the upper portion of the movable cylinder 11 (in this embodiment, a rod-like rod-like body 51 is illustrated as a preferred example, and hereinafter referred to as “rod-like body 15”). Have. Further, the drive mechanism section 50 includes a drive main body 60 that raises and lowers the rod-shaped body 51 while engaging with the rod-shaped body 51. And it is comprised so that the water level adjustment of an aeration tank may be performed when the movable cylinder 11 raises / lowers via the rod-shaped body 51 engaged by the drive of the drive main body 60. FIG. In addition, as a modification of the rod-shaped body 51 that is the connecting member 51, a member that can directly transmit power, such as a string such as a wire, can be exemplified.
[0025]
A preferred embodiment of the drive body 60 in the present invention is shown in FIG. The drive main body 60 shown in FIG. 2 is a drawing viewed from the back side of the sheet of FIG. 1 toward the front.
As shown in FIG. 2, the drive main body 60 is engaged with a first bevel gear 65 connected to a handle 61, which is a preferred example of a drive jig, and meshes with the first bevel gear 65 and changes the operating axis by 90 degrees. A second bevel gear 67 is provided.
[0026]
The second bevel gear 67 is fixedly coupled to the rotating sleeve 70. A screw portion 70a (not shown) is formed on the inner surface in the axial direction of the rotating sleeve 70, and a screw portion 51a (not shown) is formed on the outer peripheral surface in the axial direction of the up-and-down rod-like body 51 engaged therewith. ing. And these screw parts 70a and 51a are meshed | engaged so that the rod-shaped body 51 can be raised / lowered (it can move to the arrow (I)-(B) direction of FIG. 2). That is, by rotating the handle 61, the rod-shaped body 51 can be moved up and down.
[0027]
In the present embodiment, as described above, for example, a spiral screw portion 51a is formed on the surface of the rod-like body 51, and as shown in FIG. 1 in order to protect this screw portion and mark the scale. In addition, for example, a transparent or translucent resin tubular body 80 (for example, a transparent acrylic pipe) is covered on the upper part of the rod-shaped body 51 that moves up and down, and a scale is written on the tubular body 80. The water level of the aeration tank can be known in relation to the reference position (for example, the upper end of the rod-like body 51) of the rod-like body 51 that can be seen inside through the tubular body 80.
[0028]
That is, by rotating the handle 61, the upper end portion of the rod-shaped body 51 is raised and lowered, and the water level adjustment is visually observed by, for example, recording the water level of the corresponding aeration tank at the position where the upper end portion is located. It can be done while checking. That is, when the drive main body 60 is manually operated, a visual recognition mark mechanism indicating the relationship between the moving position of the rod-shaped body 51 and the water level of the aeration tank is installed.
[0029]
Of course, automatic control can be used instead of manual operation. In this case, for example, a flow rate detection device that automatically detects the flow fluctuation of the organic wastewater discharged in the process of producing a fermented malt beverage such as beer can be used, and the position of the handle operation mechanism can be automatically monitored. What is necessary is just to replace with the rotation apparatus which can be controlled automatically, and the adjustment valve apparatus which installs in the conveyance port conveyed to the following process, and controls the conveyance amount automatically.
[0030]
Moreover, in this invention, waste_water | drain is organic waste_water | drain discharged | emitted in the manufacturing process of fermented malt drinks, such as beer, and the change of the physical property (For example, the kind and density | concentration of the organic substance contained in waste_water | drain) is substantial. Does not occur. And in this invention, the data of the optimal water level of the aeration tank with respect to the amount of waste water flowing into the aeration tank is prepared in advance, and based on this optimal water level data, the water level adjustment of the aeration tank with respect to the change in the amount of waste water flowing into the aeration tank Is done. In other words, the optimum water level of the aeration tank is determined according to the fluctuation of the amount of discharged water, and the water level adjusting device acts so as to achieve this optimum water level.
[0031]
【The invention's effect】
As described above, by using the water level adjusting device of the aeration tank of the present invention, there is no need to use a so-called reduced operation or limited aeration operation method that has been conventionally used, and an optimal capacity load for the drainage load, In addition, it can be adjusted to the sludge load, and ideal processing can be realized.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an example of a state in which a water level adjusting device of the present invention is installed in an aeration tank.
FIG. 2 is a cross-sectional view showing an example of a drive main body of the water level adjusting device of the present invention.
FIG. 3 is a drawing showing a general wastewater treatment process (drainage treatment apparatus flow) in which the water level adjusting device for an aeration tank of the present invention is used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Water level adjustment apparatus 11 ... Movable cylinder 15 ... Storage cylinder 50 ... Drive mechanism part 51 ... Rod-shaped body 60 ... Drive main body

Claims

A water level adjusting device for adjusting the water level of an aeration tank in a wastewater treatment device,
The apparatus includes a movable cylinder for adjusting the liquid surface height of the aeration tank, a storage cylinder that allows the movable cylinder to be housed together with height adjustment, and for arbitrarily moving the movable cylinder. With a drive mechanism,
The movable cylinder is provided with an opening for allowing drainage to flow into the upper part thereof, and is installed so as to be slidable and storable into the storage cylinder, and the water level height is adjusted by this sliding movement operation. The combination of the movable cylinder and the storage cylinder is formed so that it can communicate with the next process tank for water level adjustment .
The drive mechanism includes a connection member connected to the movable cylinder, and a drive body that raises and lowers the connection member while engaging the connection member,
A water level adjusting device for an aeration tank, wherein the water level of the aeration tank is adjusted by moving the movable cylinder up and down via a connecting member engaged by driving of the drive main body .

A water level adjusting device for adjusting the water level of an aeration tank in a wastewater treatment device,
The apparatus includes a movable cylinder for adjusting the liquid surface height of the aeration tank, a storage cylinder that allows the movable cylinder to be housed together with height adjustment, and for arbitrarily moving the movable cylinder. With a drive mechanism,
The movable cylinder is provided with an opening for allowing drainage to flow into the upper part thereof, and is installed so as to be slidable and storable into the storage cylinder, and the water level height is adjusted by this sliding movement operation. The combination of the movable cylinder and the storage cylinder is formed so that it can communicate with the next process tank for water level adjustment.
The drive mechanism section includes a connecting member made of a rod-like body connected to the upper portion of the movable cylinder, and includes a driving body that raises and lowers the connecting member while engaging the connecting member.
The level adjustment of the aeration tank is characterized in that the water level of the aeration tank is adjusted by moving the movable cylinder up and down via a connecting member made of a rod-like body engaged by driving of the drive main body. apparatus.

A transparent or translucent resin cylindrical body is covered on the upper part of the rod-like body that moves up and down, and the scale is marked on the cylindrical body, and the rod-like body that can be seen inside through the cylindrical body The water level adjusting device for an aeration tank according to claim 2 , wherein the water level of the aeration tank is known in relation to the reference position.

The drive main body includes a first gear connected to the drive jig and a second gear engaged with the first gear, and the connection member can be moved up and down by rotating the drive jig. The water level adjusting device for an aeration tank according to claim 1 or 2 .

The drive body includes a first bevel gear connected to a drive jig, and a second bevel gear meshing with the first bevel gear, and the second bevel gear is coupled to the rotary sleeve, The screw part formed in the axial direction and the screw part formed in the axial direction of the rod-like body that can be raised and lowered mesh with each other, and the connecting member can be raised and lowered by rotating the drive jig. The water level adjusting device for an aeration tank according to any one of claims 1 to 4 .