JPH11207385A - Anaerogic treating device - Google Patents
Anaerogic treating deviceInfo
- Publication number
- JPH11207385A JPH11207385A JP1274098A JP1274098A JPH11207385A JP H11207385 A JPH11207385 A JP H11207385A JP 1274098 A JP1274098 A JP 1274098A JP 1274098 A JP1274098 A JP 1274098A JP H11207385 A JPH11207385 A JP H11207385A
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- outer cylinder
- gas
- side wall
- cylinder
- 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.)
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Links
Classifications
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- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種工場、下水、
し尿、畜産業施設等より排出される有機性の廃水又は有
機性の廃棄物等を対象とし、これを無害化する嫌気性汚
泥床処理方法及び装置に関する。TECHNICAL FIELD The present invention relates to various factories, sewage,
The present invention relates to an anaerobic sludge bed treatment method and apparatus for detoxifying organic wastewater or organic waste discharged from night soil, livestock industry facilities and the like.
【０００２】[0002]
【従来の技術】有機性の廃水あるいは有機性の廃棄物等
は、嫌気性処理によって分解処理されることがある。こ
うした分解処理方法として、例えば上向流嫌気性汚泥床
法（以後ＵＡＳＢと記す）というのがある。これは近年
普及してきた方法で、メタン菌等の嫌気性菌をグラニュ
ール状に造粒化することにより、リアクター内のメタン
菌の濃度を高濃度に維持できるという特徴がある。この
結果、廃水中の有機物の濃度は、相当高い場合でも効率
よく無害化処理できる。この方法を具体化した装置の場
合、重クロム酸カリウムを酸化剤として測定したＣＯＤ
cr（以後ＣＯＤと記す）の容積負荷が１０〜１５kg/m3.
dの汚泥でも効率よく運転できるという特徴がある。2. Description of the Related Art Organic wastewater or organic waste may be decomposed by anaerobic treatment. As such a decomposition treatment method, for example, there is an upflow anaerobic sludge bed method (hereinafter referred to as UASB). This is a method that has become widespread in recent years, and has a feature that the concentration of methane bacteria in a reactor can be maintained at a high concentration by granulating anaerobic bacteria such as methane bacteria into granules. As a result, even when the concentration of the organic matter in the wastewater is considerably high, the detoxification treatment can be efficiently performed. In the case of an apparatus embodying this method, COD measured using potassium dichromate as an oxidizing agent
cr (hereinafter referred to as COD) with a volume load of 10 to 15 kg / m 3 .
It has the feature that d sludge can be operated efficiently.
【０００３】有機性廃水及び有機性廃棄物を対象とした
嫌気性処理における嫌気性菌には種類がある。例えば、
環境温度３０〜３５℃の中温域を至適温度とする嫌気性
菌、５０〜５５℃の高温域を至適温度とする嫌気性菌な
どがある。ところが、中温域を好む嫌気性菌を使用する
ＵＡＳＢの場合、分解する有機物の負荷量が高くなる
と、例えばＣＯＤ容積負荷が１５kg/m3.d以上では発生
するガス量が多くなる。その場合、リアクター内からの
ガス抜きを随時確実に行っていかないと、ガス排出時の
吹き出し等によりグラニュール状の汚泥の流出が目立つ
ようになり、リアクター内にグラニュール汚泥を留めて
おくことが難しくなる。There are various types of anaerobic bacteria in anaerobic treatment for organic wastewater and organic waste. For example,
An anaerobic bacterium having a medium temperature range of 30 to 35 ° C. as an optimum temperature, an anaerobic bacterium having a high temperature range of 50 to 55 ° C. as an optimum temperature, and the like are available. However, in the case of a UASB using an anaerobic bacterium that prefers a medium temperature range, when the load of the decomposing organic substance increases, for example, when the COD volume load is 15 kg / m 3 .d or more, the amount of generated gas increases. In such a case, if the gas is not vented from the reactor at all times, the outflow of granulated sludge becomes prominent due to blow-out at the time of gas discharge, and granule sludge may be retained in the reactor. It becomes difficult.
【０００４】こうした場合の処理対策として、処理装置
そのものを多段にし、発生ガスを分散して系外に排出す
る方法が提案されている。多段化したＵＡＳＢ装置で
は、分解反応で発生するガスを、ガス、液、固液分離部
（以後、ＧＳＳ部とも記す）より系外に排出できるた
め、リアクター上部のＧＳＳ部でのグラニュール汚泥の
流出を防ぐことができる。このため、リアクター内に高
濃度にグラニュール汚泥を維持でき、ＣＯＤ容積負荷１
５kg/m3.dの汚泥処理も可能となっている。[0004] As a processing measure in such a case, a method has been proposed in which the processing apparatus itself is multi-staged and the generated gas is dispersed and discharged out of the system. In a multi-stage UASB device, gas generated by a decomposition reaction can be discharged out of the system from a gas, liquid, and solid-liquid separation unit (hereinafter, also referred to as a GSS unit). Outflow can be prevented. For this reason, the granular sludge can be maintained at a high concentration in the reactor, and the COD volume load 1
Sludge treatment of 5 kg / m 3 .d is also possible.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、多段化
したＵＡＳＢ装置は、以下に示すような装置上の課題が
ある。 （１）発酵槽内にＧＳＳ部が複数あるため、装置構造上
複雑となり、設備コストがかかる。 （２）各ＧＳＳ部から発生したガスは各々配管を通じて
水封槽に接続し、回収されるため、配管ラインが複雑と
なる。こうしたことから本発明では、ＧＳＳ部の構造を
簡略化すると共に発生したガスを一箇所に捕集・除去す
ることで、装置構造の簡略ができる多段化ＵＡＳＢ装置
を提供することを目的とする。However, a multi-stage UASB device has the following problems on the device. (1) Since there are a plurality of GSS units in the fermenter, the structure of the apparatus becomes complicated, and equipment costs are increased. (2) Since the gas generated from each GSS section is connected to the water sealing tank through the respective pipes and collected, the pipe line becomes complicated. In view of the above, an object of the present invention is to provide a multi-stage UASB device capable of simplifying the device structure by simplifying the structure of the GSS unit and collecting and removing generated gas at one place.
【０００６】[0006]
【課題を解決するための手段】上記の目的は以下の手段
で達成される。 （１）外筒と内筒とを有し、少なくとも外筒は上部にガ
ス抜き口を開いており、該内筒は、その上端近傍におい
て外筒を貫通して外部に連通する処理水の流出口を有
し、その側壁には内筒内から内筒周壁と外筒周壁との間
にガスを放出するガス抜き手段を有し、その底部は外筒
と連通する被処理水流入口を開口しており、外筒は、そ
の底部が下方に向かってすり鉢状に縮径し、縮径した下
端に被処理水流入管が開口していることを特徴とする嫌
気性処理装置。The above object is achieved by the following means. (1) It has an outer cylinder and an inner cylinder, and at least the outer cylinder has a gas vent opening at an upper part, and the inner cylinder has a flow of treated water flowing through the outer cylinder near the upper end thereof and communicating with the outside. It has an outlet, and its side wall has gas venting means for releasing gas between the inner cylinder peripheral wall and the outer cylinder peripheral wall from inside the inner cylinder, and its bottom portion opens an inflow port of the treated water communicating with the outer cylinder. An anaerobic treatment device, wherein the outer cylinder has a bottom part whose diameter is reduced downward in a mortar shape, and a treated water inflow pipe is opened at the reduced diameter lower end.
【０００７】（２）内筒側壁に有する前記ガス抜き手段
が、側壁の切りかき孔と、該切りかき孔上辺に接し、内
筒中にその中心方向かつ下向きに傾斜して固定された邪
魔板とを有することを特徴とする上記（１）に記載の嫌
気性処理装置。 （３） 内筒側壁に有する前記ガス抜き手段が、側壁に
設けた切りかき孔と、該切りかき孔最奧部に回転軸を係
合し、切りかき端の間を上下に回動するフラップ板と、
フラップ板の可動範囲を制限するストッパーとを有する
ことを特徴とする上記（１）に記載の嫌気性処理装置。 （４） ガス抜き手段は、内筒に上下方向に複数設けて
あることを特徴とする上記（１）〜（３）のいずれかに
記載の嫌気性処理装置。(2) The gas venting means provided on the side wall of the inner cylinder has a cutout hole in the side wall, and a baffle plate which is in contact with the upper side of the cutout hole and is fixed in the inner cylinder so as to be inclined in the center direction and downward. The anaerobic treatment device according to the above (1), comprising: (3) The gas venting means provided on the side wall of the inner cylinder engages with a cutout hole provided in the side wall and a rotary shaft at the innermost portion of the cutout hole, and the flap pivots up and down between the cut ends. Board and
The anaerobic treatment device according to the above (1), further comprising a stopper for limiting a movable range of the flap plate. (4) The anaerobic treatment apparatus according to any one of (1) to (3), wherein a plurality of degassing means are provided in the vertical direction in the inner cylinder.
【０００８】[0008]
【発明の実施の形態】以下、実施の形態を説明するが、
本発明はその内容に限定されない。図１は、本発明の嫌
気性処理装置の構造の一例を示す透視図である。上下方
向に延びる外筒１の内側に、外筒１とほぼ同じ高さの内
筒２を同心円状に納めてある。外筒１は上端板で上端を
閉塞し、一部にガス抜き口３を開いている。下端はすり
鉢状に下方向に向けて縮径する底板４が閉塞し、すり鉢
状の最下部には被処理水流入管５が連結している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below.
The present invention is not limited to the contents. FIG. 1 is a perspective view showing an example of the structure of the anaerobic treatment device of the present invention. An inner cylinder 2 having substantially the same height as the outer cylinder 1 is housed concentrically inside the outer cylinder 1 extending in the vertical direction. The outer cylinder 1 is closed at the upper end by an upper end plate, and has a gas vent 3 at a part thereof. A bottom plate 4 whose diameter is reduced downward in a mortar shape is closed at the lower end, and a treated water inflow pipe 5 is connected to a lowermost portion of the mortar shape.
【０００９】外筒１の内側にある内筒２は、上端を開口
あるいは外筒１と同じ上端板で上端を閉塞し、下端は外
筒１の底板４に短尺の支柱６を下ろし、外筒１の被処理
水流入管５の直上で開口して被処理水流入口７を形成し
ている。内筒２の周壁には、水平方向に切り込みを入れ
たＶ字型の切りかき孔８が、上下方向に５箇所設けられ
ており、各切りかき孔８では半月状の切り込み縁が上下
に向き合っている。切りかき孔８は、その開口方向を交
互に正反対の方向に向けている。各切りかき孔８の中
で、各上側の半月状の切り込み縁には同寸の半月状の邪
魔板９が取り付けられ、内筒上端近傍には、外筒１を貫
通して外部に連通する処理水の流出口１０を設けてあ
る。The inner cylinder 2 inside the outer cylinder 1 has its upper end closed by an opening or the same upper end plate as that of the outer cylinder 1, and the lower end has a short support 6 lowered on the bottom plate 4 of the outer cylinder 1. The treated water inflow opening 7 is formed just above the treated water inflow pipe 5. The peripheral wall of the inner cylinder 2 is provided with five V-shaped cutout holes 8 cut in the horizontal direction in the vertical direction. In each of the cutout holes 8, the half-moon-shaped cut edges face up and down. ing. The cutout holes 8 have their opening directions alternately directed in opposite directions. In each of the cutout holes 8, a half-moon-shaped baffle plate 9 of the same size is attached to each upper half-moon-shaped cut edge, and near the upper end of the inner cylinder, penetrates the outer cylinder 1 and communicates with the outside. An outlet 10 for treated water is provided.
【００１０】グラニュール状の嫌気性菌を内筒２内に投
入し、被処理水流入管５から内筒２内に有機物を含む被
処理水を流入させる。被処理水中の有機物は、内筒内の
嫌気性菌の働きによって分解される。これに伴ってガス
が発生するが、ガスは図中矢印ａで示すように内筒２に
設けた切りかき孔８から内筒周壁と外筒周壁との間に放
出され、外筒１のガス抜き口３を通じて外部に排出され
る。Granular anaerobic bacteria are introduced into the inner cylinder 2, and the water to be treated containing organic substances flows into the inner cylinder 2 from the treated water inflow pipe 5. Organic matter in the water to be treated is decomposed by the action of anaerobic bacteria in the inner cylinder. As a result, gas is generated, and the gas is released between the inner peripheral wall and the outer peripheral wall from the cutout hole 8 provided in the inner cylinder 2 as shown by an arrow a in the figure, and the gas in the outer cylinder 1 is released. It is discharged to the outside through the outlet 3.
【００１１】内筒２内で分解ガスが生じ始めると、発生
したガスの一部は嫌気性菌グラニュール粒から離れず、
気泡となって付着したままになる。気泡が付着すると嫌
気性菌グラニュール粒は見かけ比重が下がり、水中に浮
遊し始める。気泡は巨大化するとやがてグラニュール粒
と分離され、グラニュール粒はもとの比重を回復し、図
中矢印ｂで示すように沈降する。あるいは、水中に浮遊
するようになった嫌気性菌グラニュール粒は、内筒２内
から内筒周壁と外筒周壁との間に向けてガスが放出され
るとき、この流れに乗って同時に放出される。その際グ
ラニュール粒に付着していた気泡は、流動エネルギーを
受けて撹乱され、破裂してグラニュール粒から脱離す
る。グラニュール粒は元の比重を回復して内筒周壁と外
筒周壁との間に沿って下降する。その際、巨大化してい
たグラニュール粒は一部で分散を起こし、外筒１の底板
４を滑降して被処理水流入管５の吹き出し口に至り、被
処理水流入管５から内筒２に向かって流入する被処理水
の流入エネルギーを受けながら内筒２内を上昇する。When the decomposition gas starts to be generated in the inner cylinder 2, a part of the generated gas does not separate from the granules of the anaerobic bacteria.
They remain as bubbles. When the air bubbles adhere, the granules of the anaerobic bacteria apparently decrease in specific gravity and begin to float in water. When the bubbles become large, they are separated from the granules soon, and the granules recover their original specific gravity and settle as shown by the arrow b in the figure. Alternatively, the anaerobic bacterial granules that have become suspended in the water are simultaneously released along with this flow when gas is released from the inner cylinder 2 toward the space between the inner cylinder peripheral wall and the outer cylinder peripheral wall. Is done. At this time, the bubbles adhering to the granules are disturbed by receiving the flow energy, burst, and detach from the granules. The granule recovers its original specific gravity and descends between the inner cylinder peripheral wall and the outer cylinder peripheral wall. At this time, the granules which have been enlarged become partially dispersed, slide down the bottom plate 4 of the outer cylinder 1, reach the outlet of the treated water inflow pipe 5, and travel from the treated water inflow pipe 5 toward the inner cylinder 2. As a result, it rises in the inner cylinder 2 while receiving the inflow energy of the water to be treated.
【００１２】グラニュール粒から脱離した気泡は内筒周
壁と外筒周壁との間に沿って上昇し、外筒１のガス抜き
口３を通じて外部に放散する。混入していた有機物が分
解されると被処理水は浄化される。図中矢印ｃは水の流
れを示している。上澄み水は内筒２の流出口１０を経由
して外部に放出される。The bubbles desorbed from the granules rise along the peripheral wall between the inner cylinder and the outer cylinder, and are diffused outside through the gas vent 3 of the outer cylinder 1. When the mixed organic substances are decomposed, the water to be treated is purified. Arrow c in the figure indicates the flow of water. The supernatant water is discharged outside through the outlet 10 of the inner cylinder 2.
【００１３】上記の実施態様ではガス抜き用のを５箇所
設けた例を示した。切りかき孔８は５箇所に限る必要は
ない。嫌気性処理装置から抜き出すガス量は例えば次式
で求めることができる。 抜き出しガス量（m3/day）＝除去ＣＯＤ量(kg/day)×０．４〜０．５ 従来、比較的稼働負荷の低いＵＡＳＢ装置で確認されて
いるように、気泡の発生率が３０〜４０m3/m2・day、好
ましくは２０〜３０m3/m2・dayの場合には気泡が同伴し
てガス排出時の吹き出し等によりグラニュール状嫌気性
菌が流出することはない。従って、抜き出しガス量は上
記の式から容易に求めることができる。In the above embodiment, an example in which five gas vents are provided is shown. It is not necessary to limit the number of the cutout holes 8 to five. The amount of gas extracted from the anaerobic treatment device can be determined, for example, by the following equation. Extraction gas amount (m 3 / day) = removed COD amount (kg / day) × 0.4-0.5 Conventionally, as has been confirmed in a UASB device having a relatively low operating load, the bubble generation rate is 30%. In the case of ４０40 m 3 / m 2 · day, preferably 20 to 30 m 3 / m 2 · day, granule-like anaerobic bacteria do not flow out due to air bubbles and the like at the time of gas discharge. Therefore, the amount of extracted gas can be easily obtained from the above equation.
【００１４】発生ガス量は注入負荷量を基に当業者であ
れば容易に推算できる。理想を言えば、少なくとも一個
のＧＳＳ部からのガス抜き手段はできるだけこの抜き出
しガス量に近づくようにする必要がある。安全かつ確実
にガス抜きを行うには、ガス抜き手段を多段に配備すれ
ば良い。たとえば全体の発生ガス量が１００m3/m2・day
である場合には、少なくともＧＳＳ部を３〜４段の多段
にして発生ガスを抜く必要がある。多段に配備すれば各
段の開口度合（抜き出し配合）は軽減できる。もちろ
ん、開口断面を覆いつくす様にその開口方向は様々に配
置すると良い。段数の決定は設計上の裁量事項である。
ガス抜き手段は、等間隔に多段で配置してもよいが、流
入側と流出側とでその間隔を変えても良い。レイアウト
は流入負荷、反応温度等を勘案するとよい。設計上の裁
量事項である。ガス抜き手段の構造は、様々な形態を考
えることができる。The amount of generated gas can be easily estimated by those skilled in the art based on the injection load. Ideally, the means for venting gas from at least one GSS section should be as close as possible to this withdrawn gas volume. In order to perform the degassing safely and reliably, the degassing means may be provided in multiple stages. For example, the total amount of generated gas is 100m 3 / m 2 · day
In the case of, it is necessary to extract the generated gas at least in three or four stages of the GSS section. If it is arranged in multiple stages, the degree of opening (drawing out and blending) of each stage can be reduced. Of course, the opening direction may be variously arranged so as to cover the cross section of the opening. Determining the number of stages is a matter of design discretion.
The degassing means may be arranged in multiple stages at equal intervals, but the intervals may be changed between the inflow side and the outflow side. The layout should take into consideration the inflow load, reaction temperature and the like. This is a matter of design discretion. Various configurations can be considered for the structure of the degassing means.
【００１５】図２は、ガス抜き手段の構成に用いること
のできる邪魔板９の例であって、爪状に湾曲させた構造
体の外観図を示す。このように湾曲させた構造体を用い
る場合、切りかき孔８は例えば三日月状に形成するとよ
い。このような構造のガス抜き手段の場合、気泡が同伴
した状態で邪魔板９に捕捉されたグラニュール状汚泥
は、一時的に捕捉箇所で停滞し、やがて邪魔板９の傾斜
に沿って切りかき孔８から外筒へと導き出される。ガス
抜き手段の構成に、部分障壁としてフラップ板１１を使
用することもできる。図３は、そのようなフラップ板１
１を使用する場合の第１の例の断面図を示す。FIG. 2 shows an example of the baffle plate 9 which can be used for the structure of the gas venting means, and shows an external view of a claw-shaped structure. In the case of using such a curved structure, the cutout hole 8 may be formed in a crescent shape, for example. In the case of the degassing means having such a structure, the granular sludge caught by the baffle plate 9 in a state in which air bubbles are entrained temporarily stagnates at the trapped portion, and is eventually cut along the slope of the baffle plate 9. It is led out of the hole 8 to the outer cylinder. The flap plate 11 can also be used as a partial barrier in the construction of the degassing means. FIG. 3 shows such a flap 1
1 shows a cross-sectional view of a first example in the case of using No. 1.
【００１６】内筒８側壁に切りかき孔８を設け、左右方
向に延びる回転軸シャフト１２をその切りかき孔８の開
口側正面から見て最奧部両側に架け渡してある。さら
に、内筒２の水平断面に相応する形状の半月状のフラッ
プ板１１について、切りかき孔８内で上下動自在に、半
月形の直線縁を係合させている。回転軸シャフト１２の
係合部には、回転軸シャフト１２と同方向に延び、回転
軸シャフト１２をその下方、背後、上部の三方から囲む
ヒンジストッパ１３を設け、フラップ板１１の回動角を
所望の角度θに抑えている。内筒の壁厚とフラップ板の
短径とは、例えば以下の関係とするとよい。 内筒の壁厚フラップ板短径×（１−cosθ） 又は 内筒の壁厚≧フラップ板短径×（１−cosθ）A cutout hole 8 is provided in the side wall of the inner cylinder 8, and a rotating shaft 12 extending in the left-right direction is bridged on both sides of the innermost portion when viewed from the front of the cutout hole 8 on the opening side. Further, a half-moon shaped flap plate 11 having a shape corresponding to the horizontal cross section of the inner cylinder 2 is engaged with a straight half-moon-shaped edge so as to be vertically movable within the cutout hole 8. A hinge stopper 13 that extends in the same direction as the rotating shaft 12 and surrounds the rotating shaft 12 from below, behind, and above is provided at the engaging portion of the rotating shaft 12, and the rotation angle of the flap plate 11 is reduced. The desired angle θ is suppressed. The wall thickness of the inner cylinder and the minor axis of the flap plate may have, for example, the following relationship. Inner cylinder wall thickness flap plate minor axis x (1-cosθ) or Inner cylinder wall thickness ≥ flap plate minor axis x (1-cosθ)
【００１７】図４は、フラップ板１１を使用する第２の
例の断面図を示す。ヒンジストッパ１３は使用しない。
その代わり、内筒壁の切りかき孔上縁には内筒の中心軸
方向に僅かに突き出すストッパ板１４を設けてある。図
５は、フラップ板１１を使用する第３の例の平面図、図
６はその断面図を示す。回転軸シャフト１２は使用しな
い。その代わり、内筒２内壁に先端を回転自在に突き刺
す回転ピン１５を、半月状のフラップ板１１の直線縁の
延長方向に突き出している。ヒンジストッパ１３を使用
しない代わり、内筒２内に、フラップ板１１の上方で接
触自在の高さに棒状ストッパ１６を設けるようになって
いる。FIG. 4 is a sectional view of a second example using the flap plate 11. The hinge stopper 13 is not used.
Instead, a stopper plate 14 is provided on the upper edge of the cutout hole of the inner cylinder wall so as to slightly project in the direction of the center axis of the inner cylinder. FIG. 5 is a plan view of a third example using the flap plate 11, and FIG. 6 is a sectional view thereof. The rotating shaft 12 is not used. Instead, a rotation pin 15 that rotatably pierces the tip into the inner wall of the inner cylinder 2 protrudes in the extension direction of the straight edge of the half-moon-shaped flap plate 11. Instead of not using the hinge stopper 13, a bar-shaped stopper 16 is provided in the inner cylinder 2 at a height above the flap plate 11 so as to be freely contactable.
【００１８】ガス抜き手段としては、このほかにも様々
な態様を考えることができ、それらの適応を妨げるもの
ではない。それらはいずれも本発明の技術的範囲に含ま
れることは明白である。個々のフラップ板１１の可動範
囲や固定型邪魔板９の傾斜角、あるいは内筒壁の切りか
き孔８の大きさは、一つの装置内で均一でもよく、相違
があってもよい。相違を設ける場合には、普通は上方に
向かうほど寸法を小さくする。ただし、下方に向かうほ
ど寸法を小さくしてもよく、ランダムにしてもよい。な
お、本発明の装置の外筒と内筒の形状は、円筒形に限ら
ず、角柱状であってもよい。Various other modes can be considered as the degassing means, and do not hinder their application. It is clear that all of them are included in the technical scope of the present invention. The movable range of each flap plate 11, the inclination angle of the fixed baffle plate 9, or the size of the cutout hole 8 in the inner cylinder wall may be uniform or different in one apparatus. If a difference is to be made, the dimensions are usually reduced upward. However, the size may be reduced toward the bottom, or may be random. The shape of the outer cylinder and the inner cylinder of the device of the present invention is not limited to a cylindrical shape, but may be a prismatic shape.
【００１９】[0019]
【発明の効果】本発明は、内筒の側壁には内筒内から内
筒周壁と外筒周壁との間にガスを放出するガス抜き手段
を有し、内筒の底部には外筒と連通する被処理水流入口
を開口しており、外筒は、その底部が下方に向かってす
り鉢状に縮径し、被処理水流入管が開口していることか
ら、有機物負荷量が高くなった時でも安定したメタン発
酵処理を行うことができ、発生するガスと汚泥との分離
を円滑に行い、グラニュール汚泥の流出を防止でき、処
理効率に優れ、かなり大量の廃水などでも効果的に対応
処理できるＵＡＳＢ装置を提供することができる。According to the present invention, the side wall of the inner cylinder is provided with gas venting means for releasing gas from between the inner peripheral wall and the outer peripheral wall from inside the inner cylinder, and the outer cylinder is provided at the bottom of the inner cylinder. When the treated water inflow port is open, the bottom of the outer cylinder is reduced in the shape of a mortar toward the bottom, and the treated water inflow pipe is open. However, stable methane fermentation treatment can be performed, the generated gas and sludge can be separated smoothly, granule sludge can be prevented from flowing out, and the treatment efficiency is excellent, and even large amounts of wastewater can be effectively treated. A UASB device that can be provided.
【図１】本発明の嫌気性処理装置の構造の一例を示す透
視図である。FIG. 1 is a perspective view showing an example of the structure of an anaerobic treatment device of the present invention.
【図２】爪状に湾曲させた邪魔板の例の外観図である。FIG. 2 is an external view of an example of a baffle curved into a claw shape.
【図３】部分障壁としてフラップ板を使用する第１の例
の断面図である。FIG. 3 is a cross-sectional view of a first example using a flap plate as a partial barrier.
【図４】部分障壁としてフラップ板を使用する第２の例
の断面図である。FIG. 4 is a sectional view of a second example using a flap plate as a partial barrier.
【図５】部分障壁としてフラップ板を使用する第３の例
の平面図である。FIG. 5 is a plan view of a third example using a flap plate as a partial barrier.
【図６】部分障壁としてフラップ板を使用する第３の例
の断面図である。FIG. 6 is a sectional view of a third example using a flap plate as a partial barrier.
１ 外筒 ２ 内筒 ３ ガス抜き口 ４ 底板 ５ 被処理水流入管 ６ 支柱 ７ 被処理水流入口 ８ 切りかき孔 ９ 邪魔板 １０ 処理水の流出口 １１ フラップ板 １２ 回転軸軸シャフト １３ ヒンジストッパ １４ ストッパ板 １５ 回転ピン １６ 棒状ストッパ DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Inner cylinder 3 Gas vent 4 Bottom plate 5 Treated water inflow pipe 6 Support column 7 Treated water inflow port 8 Cutout hole 9 Baffle plate 10 Treated water outflow port 11 Flap plate 12 Rotary shaft shaft 13 Hinge stopper 14 Stopper Plate 15 Rotating pin 16 Bar stopper
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原田 秀樹 新潟県長岡市学校町１−４−28 長岡住宅 ２−204 (72)発明者 珠坪 一晃 新潟県長岡市上富岡町1603−１ 長岡技術 科学大学内 (72)発明者 米山 豊 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 鈴木 隆幸 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 安達 晋 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideki Harada 1-4-28 Nagaoka City, Nagaoka City, Niigata Prefecture 2-204 Nagaoka Residence 2-204 (72) Inventor Kazuaki Tamsubo 1603-1, Kami Tomiokacho, Nagaoka City, Niigata Prefecture Nagaoka Technology Inside the University of Science (72) Inventor Yutaka Yoneyama 11-1 Haneda Asahimachi, Ota-ku, Tokyo Inside Ebara Corporation (72) Inventor Takayuki Suzuki 11-1 Asahi-cho Haneda, Ota-ku, Tokyo Inside Ebara Corporation ( 72) Inventor Susumu Adachi Inside the Ebara Corporation, 11-1 Asahi-cho, Haneda, Ota-ku, Tokyo
Claims (4)
上部にガス抜き口を開いており、該内筒は、その上端近
傍において外筒を貫通して外部に連通する処理水の流出
口を有し、その側壁には内筒内から内筒周壁と外筒周壁
との間にガスを放出するガス抜き手段を有し、その底部
は外筒と連通する被処理水流入口を開口しており、外筒
は、その底部が下方に向かってすり鉢状に縮径し、縮径
した下端に被処理水流入管が開口していることを特徴と
する嫌気性処理装置。1. A process water having an outer cylinder and an inner cylinder, wherein at least the outer cylinder has a gas vent opening at an upper portion thereof, and the inner cylinder is provided near the upper end thereof with treated water passing through the outer cylinder and communicating with the outside. The side wall has gas venting means for releasing gas between the inner peripheral wall and the outer peripheral wall from inside the inner cylinder, and the bottom has a treated water inlet communicating with the outer cylinder. An anaerobic treatment apparatus characterized in that the outer cylinder is open, and the bottom of the outer cylinder is reduced in a mortar shape downward, and the treated water inflow pipe is opened at the reduced diameter lower end.
側壁の切りかき孔と、該切りかき孔上辺に接し、内筒中
にその中心方向かつ下向きに傾斜して固定された邪魔板
とを有することを特徴とする請求項１に記載の嫌気性処
理装置。2. The gas venting means provided on the inner cylinder side wall,
The anaerobic treatment apparatus according to claim 1, further comprising a cutout hole in the side wall, and a baffle plate which is in contact with the upper side of the cutout hole and is fixed in the inner cylinder so as to be inclined in the center direction and downward. .
側壁に設けた切りかき孔と、該切りかき孔最奧部に回転
軸を係合し、切りかき端の間を上下に回動するフラップ
板と、フラップ板の可動範囲を制限するストッパーとを
有することを特徴とする請求項１に記載の嫌気性処理装
置。3. The degassing means provided on the inner cylinder side wall,
A cutout hole provided in the side wall, a flap plate that engages a rotating shaft at the innermost portion of the cutout hole, rotates up and down between cut ends, and a stopper that limits the movable range of the flap plate. The anaerobic treatment device according to claim 1, wherein the anaerobic treatment device has:
内筒に上下方向に複数設けてあることを特徴とする請求
項１〜３のいずれかに記載の嫌気性処理装置。4. The gas venting means provided on the inner cylinder side wall,
The anaerobic treatment device according to any one of claims 1 to 3, wherein a plurality of the inner tubes are provided in a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1274098A JP3958427B2 (en) | 1998-01-26 | 1998-01-26 | Anaerobic treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1274098A JP3958427B2 (en) | 1998-01-26 | 1998-01-26 | Anaerobic treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11207385A true JPH11207385A (en) | 1999-08-03 |
| JP3958427B2 JP3958427B2 (en) | 2007-08-15 |
Family
ID=11813834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1274098A Expired - Lifetime JP3958427B2 (en) | 1998-01-26 | 1998-01-26 | Anaerobic treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3958427B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079291A (en) * | 2000-09-08 | 2002-03-19 | Ebara Corp | Anaerobic treatment method and apparatus |
| JP2006051490A (en) * | 2004-01-15 | 2006-02-23 | Sumitomo Heavy Ind Ltd | Anaerobic treatment apparatus and method |
| WO2006075414A1 (en) * | 2005-01-11 | 2006-07-20 | Sumitomo Heavy Industries, Ltd. | Anaerobic treatment apparatus and method of anaerobic treatment |
| WO2010064646A1 (en) * | 2008-12-03 | 2010-06-10 | 株式会社明電舎 | Apparatus for wastewater treatment |
| CN102774961A (en) * | 2012-07-11 | 2012-11-14 | 浙江工业大学 | Multistage anaerobic wastewater treatment method and special device |
| CN102923855A (en) * | 2012-11-22 | 2013-02-13 | 陈黎明 | Anaerobic reactor with dual-layer multiple reaction chambers |
| CN104891646A (en) * | 2015-06-11 | 2015-09-09 | 浙江省城乡规划设计研究院 | High-efficiency denitrification aerobic granular sludge reactor and sewage treatment method |
| CN110183033A (en) * | 2019-04-26 | 2019-08-30 | 杨帆 | A kind of farm contains excrement, slag wastewater treatment fertilizer technique |
| CN115448533A (en) * | 2022-08-31 | 2022-12-09 | 生态环境部土壤与农业农村生态环境监管技术中心 | Device and method for enhanced treatment of membrane-making wastewater by ascending spiral-flow type circulating micro-oxygen hydrolysis acidification |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616929B (en) * | 2012-03-21 | 2013-09-11 | 天津科技大学 | High-concentration waste water anaerobic fermentation device capable of realizing gas by-pass split-flow |
-
1998
- 1998-01-26 JP JP1274098A patent/JP3958427B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079291A (en) * | 2000-09-08 | 2002-03-19 | Ebara Corp | Anaerobic treatment method and apparatus |
| JP2006051490A (en) * | 2004-01-15 | 2006-02-23 | Sumitomo Heavy Ind Ltd | Anaerobic treatment apparatus and method |
| WO2006075414A1 (en) * | 2005-01-11 | 2006-07-20 | Sumitomo Heavy Industries, Ltd. | Anaerobic treatment apparatus and method of anaerobic treatment |
| WO2010064646A1 (en) * | 2008-12-03 | 2010-06-10 | 株式会社明電舎 | Apparatus for wastewater treatment |
| CN102774961A (en) * | 2012-07-11 | 2012-11-14 | 浙江工业大学 | Multistage anaerobic wastewater treatment method and special device |
| CN102923855A (en) * | 2012-11-22 | 2013-02-13 | 陈黎明 | Anaerobic reactor with dual-layer multiple reaction chambers |
| CN104891646A (en) * | 2015-06-11 | 2015-09-09 | 浙江省城乡规划设计研究院 | High-efficiency denitrification aerobic granular sludge reactor and sewage treatment method |
| CN110183033A (en) * | 2019-04-26 | 2019-08-30 | 杨帆 | A kind of farm contains excrement, slag wastewater treatment fertilizer technique |
| CN115448533A (en) * | 2022-08-31 | 2022-12-09 | 生态环境部土壤与农业农村生态环境监管技术中心 | Device and method for enhanced treatment of membrane-making wastewater by ascending spiral-flow type circulating micro-oxygen hydrolysis acidification |
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| Publication number | Publication date |
|---|---|
| JP3958427B2 (en) | 2007-08-15 |
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