JP5996311B2 - Waste water treatment apparatus and waste water treatment method - Google Patents

Waste water treatment apparatus and waste water treatment method Download PDF

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JP5996311B2
JP5996311B2 JP2012160516A JP2012160516A JP5996311B2 JP 5996311 B2 JP5996311 B2 JP 5996311B2 JP 2012160516 A JP2012160516 A JP 2012160516A JP 2012160516 A JP2012160516 A JP 2012160516A JP 5996311 B2 JP5996311 B2 JP 5996311B2
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JP2014018747A (en
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有希子 ▲高▼石
有希子 ▲高▼石
勇治 加藤
勇治 加藤
晴彦 角野
晴彦 角野
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Institute of National Colleges of Technologies Japan
Toenec Corp
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Toenec Corp
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    • 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
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Description

本発明は、微生物を用いて排水を分解処理する排水処理装置及び排水処理方法に関する。   The present invention relates to a wastewater treatment apparatus and a wastewater treatment method for decomposing wastewater using microorganisms.

従来より、排水を処理する種々の排水処理装置や排水処理方法が提案されている。
例えば特許文献１に記載された従来技術には、濾材が圧縮されることなく濾材の全体が空気に充分接触できるように、濾材をタンク内に吊り下げた構造を有する散水濾床装置が開示されている。
また特許文献２に記載された従来技術には、流下された排水が空気とより効果的に接触できるように、上下の多孔柱体（濾材に相当）の間に、多孔柱体が存在しない括り部を設けた浄化帯が開示されている。
また特許文献３に記載された従来技術には、所定の混合液の液相部と、酸素濃度を所定濃度範囲に維持した気相部と、を有する排水処理装置及び排水処理方法が開示されている。そして液相部には、微生物が付着している担体（微生物を担持する物体）が保持されている。 Conventionally, various waste water treatment apparatuses and waste water treatment methods for treating waste water have been proposed.
For example, the prior art described in Patent Document 1 discloses a sprinkling filter bed apparatus having a structure in which a filter medium is suspended in a tank so that the entire filter medium can be sufficiently in contact with air without being compressed. ing.
In addition, in the prior art described in Patent Document 2, there is no binding between the upper and lower porous columns (corresponding to the filter medium) so that the drained water can more effectively come into contact with air. A purification zone provided with a section is disclosed.
The prior art described in Patent Document 3 discloses a wastewater treatment apparatus and a wastewater treatment method having a liquid phase part of a predetermined liquid mixture and a gas phase part in which the oxygen concentration is maintained within a predetermined concentration range. Yes. In the liquid phase part, a carrier (an object carrying microorganisms) to which microorganisms are attached is held.

特許第３５８６７４５号公報Japanese Patent No. 3586745 特許第４４４５３５２号公報Japanese Patent No. 4445352 特開２０１１−２１２６７０号公報JP 2011-212670 A

特許文献１及び特許文献２に記載された従来技術では、担体内への溶存酸素（排水中の汚濁物質を分解するために必要である、排水中に溶解した酸素）と汚濁物質の供給は移流（排水が重力によって移動する流れ）によって行われている。このため、排水は担体の内部まで（奥まで）浸透するが、特に酸素濃度を高くしていないので、排水中の溶存酸素が担体の表面近傍で微生物にほとんど使い切られてしまい、担体の内部（奥）まで酸素が行き渡らず、担体内に活性が低い（処理効率が低い）領域ができてしまい、処理能力が低い。
また特許文献３に記載された従来技術では、酸素濃度を高くしているが、液相部に保持された微生物が付着している担体の場合、担体（生物膜）内への酸素と汚濁物質の供給は拡散（液相と生物膜内の濃度差による移動）によって行われるため、移流よりも不利になってしまい、処理能力が低い。また、排水の処理後は処理水と微生物とを分離しなければならないが、分離が困難となる場合があり、分離の手間や時間を考慮しても、やはり処理能力が低い。
本発明は、このような点に鑑みて創案されたものであり、より処理能力が高い排水処理装置及び排水処理方法を提供することを課題とする。 In the prior art described in Patent Document 1 and Patent Document 2, dissolved oxygen (oxygen dissolved in wastewater necessary for decomposing the pollutant in the wastewater) and the supply of the pollutant into the carrier are advected (Drainage moves by gravity). For this reason, the wastewater penetrates to the inside of the carrier (up to the back), but since the oxygen concentration is not particularly high, dissolved oxygen in the wastewater is almost completely used up by microorganisms near the surface of the carrier, Oxygen does not spread to the back), and a region with low activity (low processing efficiency) is formed in the carrier, resulting in low processing capacity.
Moreover, in the prior art described in Patent Document 3, the oxygen concentration is increased, but in the case of a carrier to which microorganisms held in the liquid phase are attached, oxygen and contaminants in the carrier (biofilm) Is supplied by diffusion (movement due to the concentration difference between the liquid phase and the biofilm), which is disadvantageous than advection and has a low processing capacity. Moreover, after the waste water is treated, the treated water and the microorganisms must be separated. However, separation may be difficult, and the treatment capacity is still low even in consideration of separation effort and time.
This invention is created in view of such a point, and makes it a subject to provide the waste water treatment apparatus and waste water treatment method with higher processing capability.

上記課題を解決するため、本発明に係る排水処理装置及び排水処理方法は次の手段をとる。
まず、本発明の第１の発明は、処理空間を形成する処理タンクと、前記処理タンク内に配置されて微生物を担持する物体である担体と、酸素供給装置と、を備えた排水処理装置である。
前記処理タンクには、前記処理タンクの内側の前記処理空間と、前記処理タンクの外側と、を連通する孔部として、排水流入口と処理水吐出口と酸素流入口と排気口と、が設けられており、前記処理タンクの上部には、前記排水流入口が設けられており、前記処理タンクの下部には、処理された処理水を吐出する前記処理水吐出口が設けられており、前記処理タンクの上部には、前記酸素流入口が設けられており、前記処理タンクの下部における前記処理水吐出口よりも高い位置には、前記処理タンク内の気体を排気するための前記排気口が設けられている。
前記排水流入口には処理対象の排水が前記担体の上部に流下されるように前記排水が供給され、供給された前記排水は前記担体を通過しながら前記担体に付着している微生物によって分解処理され、分解処理された前記処理水が前記処理水吐出口から吐出される。
そして、前記排水流入口には、排水供給配管が接続され、当該排水供給配管からの前記排水が流入しており、前記酸素流入口には、酸素供給配管を介して前記酸素供給装置が接続されており、前記酸素供給装置から、空気中の酸素の濃度よりも高い濃度であって所定濃度以上の濃度の酸素を含んだ気体である高濃度酸素が供給されている。
また、前記排気口には、前記処理タンク内の前記処理空間を密閉するとともに排気を可能とする排気手段が接続されており、前記処理水吐出口には、前記処理タンク内の前記処理空間を密閉するとともに前記処理水の吐出を可能とする処理水取り出し手段が接続されている。
そして、前記排気口と前記処理水吐出口とが密閉された前記処理空間内に、前記排水流入口から前記排水を供給し、前記酸素流入口から前記高濃度酸素を供給することで、密閉された前記処理空間内に前記高濃度酸素が充填されている状態が維持されており、前記処理タンク内の下方に溜まっている気体を前記排気口から排気可能とされている、排水処理装置である。 In order to solve the above problems, the waste water treatment apparatus and waste water treatment method according to the present invention take the following means.
First, a first invention of the present invention is a wastewater treatment apparatus comprising a treatment tank that forms a treatment space, a carrier that is disposed in the treatment tank and that supports a microorganism, and an oxygen supply device. is there.
The treatment tank is provided with a drainage inlet, a treatment water discharge port, an oxygen inlet, and an exhaust port as holes that communicate the treatment space inside the treatment tank and the outside of the treatment tank. is and, in the upper portion of the processing tank, said and drainage inlet is provided in a lower part of said processing tank, and the treated water discharge opening is provided for discharging the treated process water, the the upper portion of the processing tank, wherein is oxygen inlet is provided in a position higher than the treated water discharge port in a lower portion of the processing tank, the exhaust port for exhausting the gas within the processing tank Is provided.
The waste water is supplied to the waste water inlet so that the waste water to be treated flows down to the upper part of the carrier, and the supplied waste water is decomposed by microorganisms attached to the carrier while passing through the carrier. The decomposed treated water is discharged from the treated water discharge port.
A drainage supply pipe is connected to the drainage inlet, and the drainage from the drainage supply pipe flows in, and the oxygen supply unit is connected to the oxygen inlet via an oxygen supply pipe. The oxygen supply device supplies high-concentration oxygen, which is a gas containing oxygen having a concentration higher than the concentration of oxygen in the air and higher than a predetermined concentration .
The exhaust port is connected to an exhaust means for sealing and exhausting the processing space in the processing tank. The processing water discharge port is connected to the processing space in the processing tank. A treated water take-out means for sealing and allowing the treated water to be discharged is connected.
Then, the waste water is supplied from the waste water inlet and the high-concentration oxygen is supplied from the oxygen inlet into the treatment space in which the exhaust port and the treated water discharge port are sealed. In addition , the wastewater treatment apparatus is configured to maintain a state where the treatment space is filled with the high-concentration oxygen, and to allow gas accumulated below the treatment tank to be exhausted from the exhaust port. .

この第１の発明によれば、処理タンクの処理空間内に高濃度酸素を供給し、液相内に担体を漬けることなく処理空間内に担体を配置して排水を流下させることで、担体全体への溶存酸素と汚濁物質の供給性能を向上させている。
このため、微生物が付着している担体の表面近傍だけでなく、担体の内部（奥）まで適切に酸素を行き渡らせることが可能であり、担体の内部まで、より活性を高めることができるので、排水処理装置全体の処理能力をより向上させることができる。
これによって、より処理能力が高い排水処理装置を実現することができる。 According to the first aspect of the present invention, high concentration oxygen is supplied into the processing space of the processing tank, and the carrier is arranged in the processing space without immersing the carrier in the liquid phase, and the waste water flows down, so that the entire carrier Improves the supply performance of dissolved oxygen and pollutants.
For this reason, it is possible to appropriately distribute oxygen not only in the vicinity of the surface of the carrier to which microorganisms are attached, but also in the inside (back) of the carrier, and the activity can be further increased to the inside of the carrier. The treatment capacity of the entire waste water treatment apparatus can be further improved.
Thereby, it is possible to realize a waste water treatment apparatus with higher treatment capacity.

次に、本発明の第２の発明は、処理空間を形成する処理タンクの内部であって、前記処理タンクの内側の前記処理空間と、前記処理タンクの外側と、を連通する孔部として、排水流入口と処理水吐出口と酸素流入口と排気口と、が設けられた前記処理タンクの内部に、微生物を担持する物体である担体を配置し、前記処理タンクの上部に設けられた前記排水流入口から、処理対象の排水を、前記担体の上部に流下されるように供給し、前記処理タンクの下部に設けられた前記処理水吐出口から、前記担体に付着している微生物によって分解処理された処理水を吐出させ、前記処理タンクの上部に設けられた前記酸素流入口から、空気中の酸素の濃度よりも高い濃度であって所定濃度以上の濃度の酸素を含んだ気体である高濃度酸素を供給し、前記処理タンクの下部における前記処理水吐出口よりも高い位置に設けられた前記排気口から、前記処理タンク内の気体を排気する。
そして、前記処理水吐出口に、前記処理タンク内の前記処理空間を密閉するとともに前記処理水の吐出を可能とする処理水取り出し手段を接続した状態、かつ、前記排気口に、前記処理タンク内の前記処理空間を密閉するとともに排気を可能とする排気手段を接続した状態にて、排水供給配管を介して前記排水流入口から前記排水を供給し、酸素供給装置と酸素供給配管を介して前記酸素流入口から前記高濃度酸素を供給することで、密閉された前記処理空間内に前記高濃度酸素が充填されている状態を維持し、前記処理タンク内の下方に溜まっている気体を前記排気口から排気する、排水処理方法である。 Next, the second invention of the present invention is the inside of the processing tank that forms the processing space, the hole inside the processing tank and the outside of the processing tank as communicating with each other, A carrier, which is an object carrying microorganisms, is disposed inside the treatment tank provided with a drainage inlet, a treated water discharge port, an oxygen inlet, and an exhaust port, and the carrier provided as an upper part of the treatment tank. The waste water to be treated is supplied from the waste water inlet so as to flow down to the upper part of the carrier, and decomposed by microorganisms attached to the carrier from the treated water discharge port provided at the lower part of the treatment tank. Treated treated water is discharged, and from the oxygen inlet provided at the upper part of the treatment tank, the gas contains oxygen having a concentration higher than the concentration of oxygen in the air and a predetermined concentration or more. supplying high concentration oxygen, From the exhaust port provided at a position higher than the treated water discharge opening in the lower portion of serial processing tank, to exhaust gas in the processing tank.
And the state where the processing space in the processing tank is sealed to the processing water discharge port and the processing water take-out means enabling discharge of the processing water is connected, and the exhaust port is connected to the inside of the processing tank. The waste water is supplied from the waste water inlet through a waste water supply pipe in a state in which the processing space is sealed and an exhaust means enabling exhaust is connected, and the oxygen supply device and the oxygen supply pipe are used to supply the waste water. By supplying the high-concentration oxygen from an oxygen inlet, the state in which the high-concentration oxygen is filled in the sealed processing space is maintained, and the gas accumulated below the processing tank is exhausted. This is a wastewater treatment method that exhausts from the mouth.

この第２の発明では、第１の発明と同様に、処理タンクの処理空間内に高濃度酸素を供給し、液相内に担体を漬けることなく処理空間内に担体を配置して排水を流下させることで、担体全体への溶存酸素と汚濁物質の供給性能を向上させている。
この排水処理方法によれば、微生物が付着している担体の表面近傍だけでなく、担体の内部（奥）まで適切に酸素を行き渡らせることが可能であり、担体の内部まで、より活性を高めることができる。
これによって、より処理能力が高い排水処理方法を実現することができる。 In the second invention, as in the first invention, high concentration oxygen is supplied into the treatment space of the treatment tank, and the carrier is arranged in the treatment space without immersing the carrier in the liquid phase, so that the waste water flows down. As a result, the supply performance of dissolved oxygen and pollutants to the entire carrier is improved.
According to this waste water treatment method, oxygen can be properly distributed not only in the vicinity of the surface of the carrier to which microorganisms adhere, but also in the inside (back) of the carrier, and the activity is further increased to the inside of the carrier. be able to.
As a result, it is possible to realize a wastewater treatment method with higher treatment capacity.

排水処理装置１の全体構成の例を説明する斜視図である。It is a perspective view explaining the example of the whole structure of the waste water treatment equipment.

以下に本発明を実施するための形態を図面を用いて説明する。
●［排水処理装置１の全体構成（図１）］
図１に示す排水処理装置１は、処理タンク１０と、処理タンク１０内に配置されて微生物を担持する物体である担体１５と、処理タンク１０内に流下させる排水の流量を調整可能な流量調整手段２４を備えた排水供給手段２０と、処理水取り出し手段３０と、酸素供給手段４０と、排気手段５０と、を備えているが、少なくとも処理タンク１０と、担体１５と、高濃度酸素発生装置４１（酸素供給装置に相当）と、を備えていればよい。
処理タンク１０は、処理空間１７を形成し、内部の処理空間１７には担体１５が配置されている。 EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.
● [Overall configuration of wastewater treatment equipment 1 (Fig. 1)]
The waste water treatment apparatus 1 shown in FIG. 1 has a treatment tank 10, a carrier 15 that is disposed in the treatment tank 10 and carries a microorganism, and a flow rate adjustment that can adjust the flow rate of waste water that flows down into the treatment tank 10. The waste water supply means 20 provided with the means 24, the treated water extraction means 30, the oxygen supply means 40, and the exhaust means 50 are provided, but at least the treatment tank 10, the carrier 15, and the high concentration oxygen generator. 41 (corresponding to an oxygen supply device).
The processing tank 10 forms a processing space 17, and a carrier 15 is arranged in the internal processing space 17.

担体１５は、表面積が大きな物体であって、例えばスポンジ状の多孔体であり、担体１５には種々の微生物が付着している。また担体１５は、流下された排水が担体１５を通過しながら空気とより接触し易くなるような形状に形成されており、図１の例では横向きにした三角柱部材が縦方向に並べられた形状を有している。そして上下に隣り合う三角柱部材の間には担体がほぼ存在しないように配置されており、この部分で排水は必ず空気と接触する。そして空気と接触した排水は、後述する高濃度酸素と接触することになり、高濃度酸素が排水中に溶け込む。このように、排水中の溶存酸素をより増加させることができる。
また担体１５は、処理タンク１０内に吊り下げてもよいし、担体１５を保持可能な剛性を有する支持体１６を貼り付けて処理タンク１０内に載置してもよい。また複数の担体を処理タンク１０内に充填（堆積）してもよい。
なお、担体１５の形状、構造、サイズ、材質や、処理タンク１０内への配置方法は、特に限定しない。
そして担体１５には、種々の微生物が付着している。この微生物によって排水を分解処理する。 The carrier 15 is an object having a large surface area, for example, a sponge-like porous body, and various microorganisms adhere to the carrier 15. The carrier 15 is formed in a shape such that the drained water flows through the carrier 15 and more easily comes into contact with the air. In the example of FIG. have. And it arrange | positions so that a support | carrier may hardly exist between the triangular prism members adjacent up and down, and waste_water | drain always contacts air in this part. And the waste water which contacted air will contact the high concentration oxygen mentioned later, and high concentration oxygen melt | dissolves in waste water. Thus, the dissolved oxygen in waste water can be increased more.
The carrier 15 may be suspended in the processing tank 10 or may be placed in the processing tank 10 with a support 16 having rigidity capable of holding the carrier 15 attached thereto. A plurality of carriers may be filled (deposited) in the processing tank 10.
The shape, structure, size, material, and arrangement method of the carrier 15 in the processing tank 10 are not particularly limited.
Various microorganisms adhere to the carrier 15. Wastewater is decomposed by these microorganisms.

処理タンク１０の上部には、排水流入口１１が設けられ、排水流入口１１の下方には担体１５にまんべんなく排水を流下させる送液設備（図示省略）が設けられている。また処理タンク１０の下部には、処理水吐出口１２と排気口１４とが設けられている。また処理タンク１０の任意の位置には酸素流入口１３が設けられている。
排水流入口１１には、排水供給手段２０が接続され、処理対象の排水が担体１５の上部に流下するように排水が供給される。
例えば排水供給手段２０は、排水タンク２１と撹拌手段（図示省略）とポンプ２３とを有しており、撹拌手段は排水タンク２１内の排水を撹拌し、ポンプ２３は排水タンク２１内の排水を排水流入口１１へと圧送する。
また、流量調整手段２４は、ポンプ２３を制御して処理タンク１０に流下させる排水の流量を調整する。
なお、排水供給手段２０は、図１に示す形状や構造に限定されず、例えば排水が流れてくる配管のみであってもよく、排水流入口１１に排水を供給（流下）できるものであればよい。 A drainage inlet 11 is provided in the upper part of the processing tank 10, and a liquid feeding facility (not shown) is provided below the drainage inlet 11 for allowing the carrier 15 to flow down the drainage evenly. Further, a treated water discharge port 12 and an exhaust port 14 are provided at the lower portion of the treatment tank 10. An oxygen inlet 13 is provided at an arbitrary position of the processing tank 10.
A drainage supply means 20 is connected to the drainage inlet 11, and the drainage is supplied so that the wastewater to be treated flows down to the upper part of the carrier 15.
For example, the drainage supply means 20 includes a drainage tank 21, a stirring means (not shown), and a pump 23. The stirring means stirs the drainage in the drainage tank 21, and the pump 23 drains the drainage in the drainage tank 21. Pump to the drainage inlet 11.
Further, the flow rate adjusting means 24 controls the pump 23 to adjust the flow rate of drainage that flows down to the processing tank 10.
The drainage supply means 20 is not limited to the shape and structure shown in FIG. 1, and may be, for example, only a pipe through which drainage flows, as long as it can supply (flow down) drainage to the drainage inlet 11. Good.

酸素流入口１３には、酸素供給手段４０が接続され、処理空間１７内に高濃度酸素を供給する。
なお、排水中の分解されるべき有機物・アンモニアなどの被酸化物の濃度が最も高い場所（最も微生物に働いてもらいたい場所）は担体１５の上部であることと、高濃度酸素は通常の空気よりも比重が重いことにより、処理タンク１０の上部から高濃度酸素を流入させることが好ましい。
例えば酸素供給手段４０は、高濃度酸素発生装置４１（酸素供給装置に相当）と酸素濃度計４２とを有している。高濃度酸素発生装置４１は、処理タンク１０に供給する高濃度酸素を発生する装置であり、酸素濃度計４２は、供給する高濃度酸素の濃度を検出する。なお、酸素濃度計４２は省略してもよい。
また、高濃度酸素は、通常の空気中の酸素の濃度（約２１［％］の濃度）よりも高濃度の酸素を含んだ気体（空気）であり、特に、酸素濃度を９０［％］以上にすると、より高い処理能力が得られることを発明者は実験にて確認した。
なお、担体に付着している微生物は空気中の酸素を取り込めず、排水中に溶け込んでいる酸素を取り込む。従って、上述した担体１５を用いて、排水を高濃度酸素に接触させる頻度を増加させ、より多くの高濃度酸素を排水に溶け込ませて微生物に酸素を供給させている。
これにより、微生物が付着している担体の表面近傍だけでなく、担体の内部（奥）まで適切に酸素を行き渡らせることが可能であり、担体の内部まで、より活性を高めることができるので、排水処理装置全体の処理能力をより向上させることができる。
なお、高濃度酸素の供給方法としては、酸素流入口１３から一定量の高濃度酸素を常時供給するようにしてもよいし、処理空間１７内の酸素濃度を定期的に測定し、酸素濃度が閾値を下回った場合に所定量の高濃度酸素を供給するようにしてもよい。
なお、処理空間１７内に供給されて充填された高濃度酸素を処理空間１７内で循環・撹拌させる循環・撹拌手段を備えるようにしてもよい。 An oxygen supply means 40 is connected to the oxygen inlet 13 to supply high concentration oxygen into the processing space 17.
It should be noted that the place where the concentration of the organic matter to be decomposed and the oxides such as ammonia in the wastewater is the highest (the place where the microorganisms want to work) is the upper part of the carrier 15, and the high concentration oxygen is normal air. Since the specific gravity is heavier than that, it is preferable to allow high concentration oxygen to flow from the upper part of the processing tank 10.
For example, the oxygen supply means 40 includes a high concentration oxygen generator 41 (corresponding to an oxygen supply device) and an oxygen concentration meter 42. The high concentration oxygen generator 41 is a device that generates high concentration oxygen to be supplied to the processing tank 10, and the oxygen concentration meter 42 detects the concentration of the high concentration oxygen to be supplied. The oxygen concentration meter 42 may be omitted.
Further, high concentration oxygen is a gas (air) containing oxygen at a higher concentration than the normal concentration of oxygen in air (a concentration of about 21 [%]), and in particular, the oxygen concentration is 90 [%] or more. In this case, the inventor has confirmed through experiments that a higher throughput can be obtained.
Microorganisms adhering to the carrier cannot take in oxygen in the air but take in oxygen dissolved in the waste water. Accordingly, the carrier 15 described above is used to increase the frequency with which the wastewater is brought into contact with high-concentration oxygen, so that more high-concentration oxygen is dissolved in the wastewater and oxygen is supplied to the microorganisms.
As a result, oxygen can be properly distributed not only in the vicinity of the surface of the carrier to which microorganisms are attached, but also inside the carrier (back), and the activity can be further increased to the inside of the carrier. The treatment capacity of the entire waste water treatment apparatus can be further improved.
As a method for supplying high-concentration oxygen, a constant amount of high-concentration oxygen may be constantly supplied from the oxygen inlet 13, or the oxygen concentration in the processing space 17 is measured periodically, and the oxygen concentration is A predetermined amount of high-concentration oxygen may be supplied when it falls below the threshold.
A circulating / stirring means for circulating / stirring high concentration oxygen supplied and filled in the processing space 17 in the processing space 17 may be provided.

処理水吐出口１２には、処理水取り出し手段３０が接続され、微生物にて分解処理された処理水が取り出される。
例えば処理水取り出し手段３０は、Ｕ字管３１と処理水タンク３２とを有しており、Ｕ字管３１は、処理空間１７を密閉する栓の役目をしている。また、処理水取り出し手段３０の形状や構造等は、図１に示すものに限定されるものではない。 A treated water discharge means 30 is connected to the treated water discharge port 12, and treated water decomposed by microorganisms is taken out.
For example, the treated water extraction means 30 has a U-shaped tube 31 and a treated water tank 32, and the U-shaped tube 31 serves as a plug for sealing the treated space 17. Moreover, the shape, structure, etc. of the treated water extraction means 30 are not limited to those shown in FIG.

排気口１４には、排気手段５０が接続されている。処理タンク１０内に高濃度酸素が圧送されると、自動的に押出された装置内の気体が排気手段５０を通過して排気される。高濃度酸素を処理タンク１０の上部から流入する場合は、排気口１４は処理タンク１０の下部に設けられていることが好ましい。
例えば排気手段５０は、排気タンク５１と酸素濃度計５２と流量メータ５３とを有しており、排気タンク５１は、処理空間１７を密閉する栓の役目をしている。また、酸素濃度計５２は排気中の酸素の濃度を検出し、流量メータ５３は排気の流量を検出する。なお、酸素濃度計５２及び流量メータ５３は省略してもよい。また、排気手段５０の形状や構造等は、図１に示すものに限定されるものではなく、例えば開閉バルブ等にて構成してもよい。
なお、処理タンク１０は、排気口等にて内部と外部とが連通している構造であってもよいし、排気口等を塞いで密閉された構造としてもよく、密閉されているか否かを限定するものではない。処理空間１７が高濃度酸素で充填された高濃度酸素状態を維持することができる構造であれば、処理タンク１０が密閉されていても密閉されていなくてもよい。 An exhaust means 50 is connected to the exhaust port 14. When high-concentration oxygen is pumped into the processing tank 10, the gas in the automatically extruded apparatus passes through the exhaust means 50 and is exhausted. When high-concentration oxygen flows from the upper part of the processing tank 10, the exhaust port 14 is preferably provided at the lower part of the processing tank 10.
For example, the exhaust means 50 includes an exhaust tank 51, an oxygen concentration meter 52, and a flow meter 53, and the exhaust tank 51 serves as a plug that seals the processing space 17. The oxygen concentration meter 52 detects the concentration of oxygen in the exhaust, and the flow meter 53 detects the flow rate of the exhaust. The oxygen concentration meter 52 and the flow meter 53 may be omitted. Moreover, the shape, structure, etc. of the exhaust means 50 are not limited to what is shown in FIG. 1, For example, you may comprise with an on-off valve.
The processing tank 10 may have a structure in which the inside and the outside communicate with each other through an exhaust port or the like, or may have a structure closed by closing the exhaust port or the like. It is not limited. As long as the processing space 17 can maintain a high concentration oxygen state filled with high concentration oxygen, the processing tank 10 may or may not be sealed.

以上、本実施の形態にて説明した排水処理装置１は、処理タンクの処理空間内に高濃度酸素を供給し、液相内に担体を漬けることなく処理空間内に担体を配置して排水を流下させることで、排水と高濃度酸素とが触れる頻度を増加させ、排水中の溶存酸素をより増加させている。
このため、微生物が付着している担体の表面近傍だけでなく、担体の内部（奥）まで適切に酸素を行き渡らせることが可能であり、担体の内部まで、より活性を高めることができるので、排水処理装置全体の処理能力をより向上させることができる。これにより、より処理能力が高い排水処理装置を実現している。
また、本実施の形態にて説明した排水処理装置１は、水槽タイプの排水処理装置と比較して、微生物の量が多く、過剰に増殖した微生物も微生物が処理してしまうので、過剰に増殖した微生物による汚泥が発生しにくい。
また、処理空間１７を高濃度酸素で充填することで、ハエ等の害虫が発生しないことも確認され、非常に衛生的な排水処理装置を実現している。
また、この排水処理装置１の構成を利用して、処理空間を形成する処理タンク内に、微生物を担持する物体である担体を配置し、処理タンクの上部から、処理対象の排水を、担体の上部に流下されるように供給し、処理タンクの下部から、担体に付着している微生物によって分解処理された処理水を吐出させ、処理タンクの任意の位置から、空気中の酸素の濃度よりも高い濃度の酸素を含んだ気体である高濃度酸素を供給し、処理空間内に高濃度酸素が充填されている状態を維持することで、より処理能力が高い排水処理方法を実現することができる。 As described above, the wastewater treatment apparatus 1 described in the present embodiment supplies high-concentration oxygen into the treatment space of the treatment tank, arranges the carrier in the treatment space without immersing the carrier in the liquid phase, and discharges the wastewater. By letting it flow down, the frequency of contact between the wastewater and high-concentration oxygen is increased, and the dissolved oxygen in the wastewater is further increased.
For this reason, it is possible to appropriately distribute oxygen not only in the vicinity of the surface of the carrier to which microorganisms are attached, but also in the inside (back) of the carrier, and the activity can be further increased to the inside of the carrier. The treatment capacity of the entire waste water treatment apparatus can be further improved. As a result, a wastewater treatment apparatus with higher treatment capacity is realized.
In addition, the wastewater treatment apparatus 1 described in the present embodiment has a larger amount of microorganisms than an aquarium type wastewater treatment apparatus, and excessively grown microorganisms also process microorganisms. It is difficult to generate sludge from microorganisms.
In addition, it is confirmed that no pests such as flies are generated by filling the treatment space 17 with high-concentration oxygen, thereby realizing a very sanitary wastewater treatment apparatus.
Further, by utilizing the configuration of the wastewater treatment apparatus 1, a carrier that is an object carrying microorganisms is disposed in a treatment tank that forms a treatment space, and wastewater to be treated is discharged from the upper part of the treatment tank to the carrier. It is supplied so that it flows down to the upper part, and the treated water decomposed by the microorganisms adhering to the carrier is discharged from the lower part of the treatment tank, and from the arbitrary position of the treatment tank, the concentration of oxygen in the air By supplying high-concentration oxygen, which is a gas containing high-concentration oxygen, and maintaining a state where the treatment space is filled with high-concentration oxygen, a wastewater treatment method with higher treatment capacity can be realized. .

本発明の排水処理装置１及び排水処理方法は、本実施の形態で説明した外観、構成、構造、形状等に限定されず、本発明の要旨を変更しない範囲で種々の変更、追加、削除が可能である。   The wastewater treatment apparatus 1 and the wastewater treatment method of the present invention are not limited to the appearance, configuration, structure, shape, etc. described in the present embodiment, and various modifications, additions, and deletions can be made without changing the gist of the present invention. Is possible.

１ 排水処理装置
１０ 処理タンク
１１ 排水流入口
１２ 処理水吐出口
１３ 酸素流入口
１４ 排気口
１５ 担体
１７ 処理空間
２０ 排水供給手段
２３ ポンプ
２４ 流量調整手段
３０ 処理水取り出し手段
４０ 酸素供給手段
４１ 高濃度酸素発生装置（酸素供給装置）
４２ 酸素濃度計
５０ 排気手段
５２ 酸素濃度計
５３ 流量メータ

DESCRIPTION OF SYMBOLS 1 Waste water treatment apparatus 10 Treatment tank 11 Waste water inlet 12 Treated water discharge port 13 Oxygen inlet 14 Exhaust port 15 Carrier 17 Processing space 20 Drain supply means 23 Pump 24 Flow rate adjustment means 30 Treated water extraction means 40 Oxygen supply means 41 High concentration Oxygen generator (oxygen supply device)
42 Oxygen concentration meter 50 Exhaust means 52 Oxygen concentration meter 53 Flow meter

Claims (2)

処理空間を形成する処理タンクと、
前記処理タンク内に配置されて微生物を担持する物体である担体と、
酸素供給装置と、を備えた排水処理装置であって、
前記処理タンクには、前記処理タンクの内側の前記処理空間と、前記処理タンクの外側と、を連通する孔部として、排水流入口と処理水吐出口と酸素流入口と排気口と、が設けられており、
前記処理タンクの上部には、前記排水流入口が設けられており、
前記処理タンクの下部には、処理された処理水を吐出する前記処理水吐出口が設けられており、
前記処理タンクの上部には、前記酸素流入口が設けられており、
前記処理タンクの下部における前記処理水吐出口よりも高い位置には、前記処理タンク内の気体を排気するための前記排気口が設けられており、
前記排水流入口には処理対象の排水が前記担体の上部に流下されるように前記排水が供給され、
供給された前記排水は前記担体を通過しながら前記担体に付着している微生物によって分解処理され、
分解処理された前記処理水が前記処理水吐出口から吐出され、
前記排水流入口には、排水供給配管が接続され、当該排水供給配管からの前記排水が流入しており、
前記酸素流入口には、酸素供給配管を介して前記酸素供給装置が接続されており、前記酸素供給装置から、空気中の酸素の濃度よりも高い濃度であって所定濃度以上の濃度の酸素を含んだ気体である高濃度酸素が供給されており、
前記排気口には、前記処理タンク内の前記処理空間を密閉するとともに排気を可能とする排気手段が接続されており、
前記処理水吐出口には、前記処理タンク内の前記処理空間を密閉するとともに前記処理水の吐出を可能とする処理水取り出し手段が接続されており、
前記排気口と前記処理水吐出口とが密閉された前記処理空間内に、前記排水流入口から前記排水を供給し、前記酸素流入口から前記高濃度酸素を供給することで、密閉された前記処理空間内に前記高濃度酸素が充填されている状態が維持されており、前記処理タンク内の下方に溜まっている気体を前記排気口から排気可能とされている、
排水処理装置。 A processing tank forming a processing space;
A carrier that is disposed in the processing tank and is an object that carries microorganisms;
An oxygen supply device, and a wastewater treatment device comprising:
The treatment tank is provided with a drainage inlet, a treatment water discharge port, an oxygen inlet, and an exhaust port as holes that communicate the treatment space inside the treatment tank and the outside of the treatment tank. And
Wherein the upper portion of the processing tank, and said water discharge inlet is provided,
At the bottom of the processing tank, and the treated water discharge opening is provided for discharging the treated process water,
The oxygen inlet is provided in the upper part of the processing tank,
The exhaust port for exhausting the gas in the treatment tank is provided at a position higher than the treatment water discharge port in the lower part of the treatment tank,
The waste water is supplied to the waste water inlet so that the waste water to be treated flows down to the upper part of the carrier,
The supplied waste water is decomposed by microorganisms adhering to the carrier while passing through the carrier,
The treated water that has been decomposed is discharged from the treated water discharge port,
A drainage supply pipe is connected to the drainage inlet, and the drainage from the drainage supply pipe flows in,
The oxygen supply device is connected to the oxygen inflow port via an oxygen supply pipe. From the oxygen supply device, oxygen having a concentration higher than the concentration of oxygen in the air and higher than a predetermined concentration is supplied. High-concentration oxygen, which is a contained gas, is supplied.
The exhaust port is connected to an exhaust means for sealing and exhausting the processing space in the processing tank,
The treated water discharge port is connected with a treated water take-out means that seals the treated space in the treated tank and enables the treated water to be discharged.
In the treatment space in which the exhaust port and the treated water discharge port are sealed, the wastewater is supplied from the drainage inlet, and the high concentration oxygen is supplied from the oxygen inlet, so that the sealed A state where the processing space is filled with the high-concentration oxygen is maintained, and the gas accumulated in the lower part of the processing tank can be exhausted from the exhaust port.
Wastewater treatment equipment. 処理空間を形成する処理タンクの内部であって、前記処理タンクの内側の前記処理空間と、前記処理タンクの外側と、を連通する孔部として、排水流入口と処理水吐出口と酸素流入口と排気口と、が設けられた前記処理タンクの内部に、微生物を担持する物体である担体を配置し、
前記処理タンクの上部に設けられた前記排水流入口から、処理対象の排水を、前記担体の上部に流下されるように供給し、
前記処理タンクの下部に設けられた前記処理水吐出口から、前記担体に付着している微生物によって分解処理された処理水を吐出させ、
前記処理タンクの上部に設けられた前記酸素流入口から、空気中の酸素の濃度よりも高い濃度であって所定濃度以上の濃度の酸素を含んだ気体である高濃度酸素を供給し、
前記処理タンクの下部における前記処理水吐出口よりも高い位置に設けられた前記排気口から、前記処理タンク内の気体を排気し、
前記処理水吐出口に、前記処理タンク内の前記処理空間を密閉するとともに前記処理水の吐出を可能とする処理水取り出し手段を接続した状態、かつ、前記排気口に、前記処理タンク内の前記処理空間を密閉するとともに排気を可能とする排気手段を接続した状態にて、排水供給配管を介して前記排水流入口から前記排水を供給し、酸素供給装置と酸素供給配管を介して前記酸素流入口から前記高濃度酸素を供給することで、密閉された前記処理空間内に前記高濃度酸素が充填されている状態を維持し、前記処理タンク内の下方に溜まっている気体を前記排気口から排気する、
排水処理方法。 A drainage inlet, a treated water discharge port, and an oxygen inlet as holes that communicate with the inside of the processing tank and the outside of the processing tank inside the processing tank forming the processing space. And a carrier, which is an object carrying microorganisms, is disposed inside the processing tank provided with an exhaust port ,
From the drainage inlet provided in the upper part of the treatment tank, supply wastewater to be treated so as to flow down to the upper part of the carrier,
From the treated water discharge port provided at the lower part of the treated tank, the treated water decomposed by the microorganisms adhering to the carrier is discharged,
From the oxygen inlet provided in the upper part of the processing tank, high concentration oxygen which is a gas containing oxygen having a concentration higher than a predetermined concentration and higher than the concentration of oxygen in the air is supplied.
Exhaust the gas in the processing tank from the exhaust port provided at a position higher than the processing water discharge port in the lower part of the processing tank,
A state where the treatment space in the treatment tank is sealed to the treatment water discharge port and a treatment water take-out means enabling discharge of the treatment water is connected, and the exhaust port is connected to the treatment tank in the treatment tank. The waste water is supplied from the waste water inlet through a waste water supply pipe in a state where the processing space is sealed and exhaust means capable of exhausting is connected, and the oxygen flow is supplied through an oxygen supply device and an oxygen supply pipe. By supplying the high-concentration oxygen from the inlet, the state where the high-concentration oxygen is filled in the sealed processing space is maintained, and the gas accumulated in the lower part of the processing tank is discharged from the exhaust port. Exhaust,
Wastewater treatment method.
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