JP6470939B2 - Wastewater treatment equipment - Google Patents
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- JP6470939B2 JP6470939B2 JP2014209687A JP2014209687A JP6470939B2 JP 6470939 B2 JP6470939 B2 JP 6470939B2 JP 2014209687 A JP2014209687 A JP 2014209687A JP 2014209687 A JP2014209687 A JP 2014209687A JP 6470939 B2 JP6470939 B2 JP 6470939B2
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- 238000004065 wastewater treatment Methods 0.000 title claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 157
- 238000000926 separation method Methods 0.000 claims description 72
- 239000002351 wastewater Substances 0.000 claims description 38
- 238000003756 stirring Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 19
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- 239000008151 electrolyte solution Substances 0.000 claims description 16
- 244000144992 flock Species 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 7
- 239000003599 detergent Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003487 electrochemical reaction Methods 0.000 claims description 3
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 description 1
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 description 1
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- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
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- 239000013505 freshwater Substances 0.000 description 1
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- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Description
本発明は、被処理水である排水の汚れ分を、フロックを生成させて分離処理できるように、分離処理槽を備える排水の処理装置に関する。 TECHNICAL FIELD The present invention relates to a wastewater treatment apparatus including a separation treatment tank so that wastewater that is water to be treated can be separated by generating flocks.
従来、排水の処理装置にあっては、例えば、ガス導入口を設けた分離壁を介して浮上槽と電解槽とを分離すると共に、浮上槽に清水供給管を接続し、運転停止後、浮上槽および電解槽を清水で自動的に洗浄できるようにした電気浮上装置構造（特許文献１参照）が提案されている。これによれば、電極の目詰まりやスケール発生を防止し、装置の保守、管理を簡略化することができる。 Conventionally, in a wastewater treatment apparatus, for example, a levitation tank and an electrolytic cell are separated via a separation wall provided with a gas introduction port, and a fresh water supply pipe is connected to the levitation tank, and the operation is suspended after the operation is stopped. There has been proposed an electric levitation device structure (see Patent Document 1) that can automatically clean a tank and an electrolytic cell with clean water. According to this, clogging of electrodes and generation of scale can be prevented, and maintenance and management of the apparatus can be simplified.
排水の処理装置に関して解決しようとする課題は、先行技術のような従来の装置では、処理槽が浮上槽と電解槽及び分離槽とに壁で分割されて構成が複雑になっている割に、被処理水と浄化された処理水及びフロックの流れの関係は単純で特徴がなく、排水の汚れ分をより効率良く分離することが難しいことにある。
そこで、本発明の目的は、簡易な構成によって排水の汚れ分をより効率良く分離処理できる排水の処理装置を提供することにある。
The problem to be solved with respect to the wastewater treatment device is that, in a conventional device such as the prior art, the treatment tank is divided into a floating tank, an electrolytic tank, and a separation tank by a wall, and the configuration is complicated. The relationship between the water to be treated and the flow of purified treated water and flocs is simple and uncharacteristic, and it is difficult to more efficiently separate the waste water.
SUMMARY OF THE INVENTION An object of the present invention is to provide a wastewater treatment apparatus capable of separating and treating wastewater dirt more efficiently with a simple configuration.
本発明は上記目的を達成するために次の構成を備える。
本発明にかかる排水の処理装置の一形態によれば、排水の汚れ分を、フロックを生成させて分離処理できるように上下方向に所要の長さを有して設けられた分離処理槽を備え、該分離処理槽の内部には、微細な気泡を発生させるように微細気泡発生装置の構成要素である気泡発生部が配置され、前記分離処理槽の前記気泡発生部が配された上側に、排水の原水が供給される原水流入口が設けられ、前記分離処理槽の前記気泡発生部が配された下側に、排水が浄化された処理済みの水である処理水が流出される処理水流出口が設けられ、前記分離処理槽の上端部に、フロックを伴って汚れ分が濃縮された水である汚れ濃縮水が排出される汚れ濃縮水排出口が設けられている。
The present invention has the following configuration in order to achieve the above object.
According to one aspect of the wastewater treatment apparatus according to the present invention, a separation treatment tank provided with a required length in the vertical direction is provided so that the wastewater can be separated by generating flocks. In the separation treatment tank, a bubble generation unit that is a constituent element of the fine bubble generation device is arranged so as to generate fine bubbles, and on the upper side of the separation treatment tank on which the bubble generation unit is arranged, A treated water stream in which treated water, which is treated water from which the waste water has been purified, flows out to the lower side of the separation treatment tank where the bubble generating part is disposed, and is provided with a raw water inlet to which the raw water of the waste water is supplied. An outlet is provided, and an upper end portion of the separation treatment tank is provided with a dirty concentrated water discharge port through which dirty concentrated water, which is water in which the dirt content is concentrated with a flock, is discharged.
また、本発明にかかる排水の処理装置の一形態によれば、前記原水を供給する装置であって、前記分離処理槽に供給される前記排水の原水に、少なくとも凝集剤を含む薬品が混合・撹拌されるように、前記薬品を前記原水に投入する薬品の投入装置と、前記原水を前記薬品とを撹拌させる撹拌混合部とを備える原水の供給装置が設けられていることを特徴とすることができる。 Further, according to one aspect of the wastewater treatment apparatus according to the present invention, the raw water is supplied to the raw water of the wastewater supplied to the separation treatment tank. A raw water supply device including a chemical charging device for charging the chemical into the raw water and a stirring and mixing unit for stirring the raw water with the chemical so as to be stirred is provided. Can do.
また、本発明にかかる排水の処理装置の一形態によれば、前記分離処理槽の上端面が鏡板状に上方へ膨らんだ湾曲面状に形成されており、前記汚れ濃縮水排出口が該鏡板状の上端面の最上部である中央部に設けられていることを特徴とすることができる。 Further, according to one aspect of the wastewater treatment apparatus of the present invention, the upper end surface of the separation treatment tank is formed in a curved surface shape that swells upward in the shape of a mirror plate, and the dirt concentrated water discharge port is the mirror plate. It is characterized by being provided in the central part which is the uppermost part of the upper end surface of the shape.
また、本発明にかかる排水の処理装置の一形態によれば、前記微細気泡発生装置の前記気泡発生部が電気化学反応を行う電極によって構成され、該電極が、微細気泡の放出される上方が開放された箱状の収納部に収納されて配置され、該収納部には、下方から電解液が供給されるように、電解液の供給装置が接続されていることを特徴とすることができる。 Further, according to one aspect of the wastewater treatment apparatus of the present invention, the bubble generating portion of the fine bubble generating device is configured by an electrode that performs an electrochemical reaction, and the electrode is located above the discharge of the fine bubble. An electrolytic solution supply device is connected to the storage portion so that the electrolytic solution is supplied from below. .
また、本発明にかかる排水の処理装置の一形態によれば、前記処理水流出口が、前記分離処理槽の内部まで挿入された状態の処理水管路の先端開口が下方を向いた状態に開口して設けられていることを特徴とすることができる。 Further, according to one aspect of the wastewater treatment apparatus of the present invention, the treated water outlet opens so that the front end opening of the treated water pipe in a state where the treated water outlet is inserted to the inside of the separation treatment tank faces downward. It can be characterized by being provided.
また、本発明にかかる排水の処理装置の一形態によれば、前記汚れ濃縮水排出口に、該汚れ濃縮水排出口から延長される排水管路よりも上方の大気に開放するように挿入された状態に設けられて、前記分離処理槽内の上端部が負圧になった際に大気を導入することができる大気導入管路を備えることを特徴とすることができる。 Further, according to one aspect of the wastewater treatment apparatus of the present invention, the drainage is inserted into the dirt concentrated water discharge port so as to open to the atmosphere above the drain pipe extending from the dirt concentrated water discharge port. It is provided with an atmospheric air introduction pipe which is provided in a state where the atmospheric air can be introduced when the upper end portion in the separation treatment tank becomes a negative pressure.
また、本発明にかかる排水の処理装置の一形態によれば、前記汚れ濃縮水排出口に水平方向に延びる形状に接続されて設けられて前記汚れ濃縮水を排水する排水管路の延長部において、サイフォン効果を利用できるように、通水断面が該排水管路の根元側の部分よりも小さく且つ下方に位置するように設けられていることを特徴とすることができる。 Further, according to one aspect of the wastewater treatment apparatus according to the present invention, in the extension part of the drainage pipe that is connected to the dirt concentrated water discharge port in a shape extending in the horizontal direction and drains the dirt concentrated water. In order to make use of the siphon effect, the water passage section is provided so as to be smaller than and located below the root side portion of the drain pipe.
また、本発明にかかる排水の処理装置の一形態によれば、前記分離処理槽内の上下方向の流れに整流効果のある整流部材が、該分離処理槽内の前記原水流入口と前記気泡発生部との間の高さ位置に配されていることを特徴とすることができる。
また、本発明にかかる排水の処理装置の一形態によれば、前記排水が、少なくとも洗剤によって汚れ分が溶け込んでいる排水であることを特徴とすることができる。
Further, according to one aspect of the wastewater treatment apparatus of the present invention, the flow straightening member having a flow straightening effect in the vertical flow in the separation treatment tank includes the raw water inlet and the bubble generation in the separation treatment tank. It can be characterized by being arranged at a height position between the parts.
Moreover, according to one form of the waste water treatment apparatus concerning this invention, the said waste water can be characterized by the waste water which the dirt part has melt | dissolved by the detergent at least.
本発明にかかる排水の処理装置によれば、簡易な構成によって排水の汚れ分をより効率良く分離処理できるという特別有利な効果を奏する。 According to the wastewater treatment apparatus of the present invention, there is a particularly advantageous effect that wastewater dirt can be separated and processed more efficiently with a simple configuration.
以下、本発明に係る排水の処理装置の形態例を添付図面（図１〜５）と共に詳細に説明する。この排水の処理装置は、排水の汚れ分を、フロックを生成させて分離処理することで、排水を浄化する装置である。その排水としては、洗剤などにより汚れ分が溶け込んでいるようなものであって、例えば、有機質の汚れ成分を含んでフロックを生じやすい温浴施設の排水があり、さらには温浴施設の洗い場で発生する浴室排水を対象とすることができる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of waste water treatment apparatus according to the present invention will be described in detail with reference to the accompanying drawings (FIGS. 1 to 5). This wastewater treatment device is a device that purifies wastewater by separating and treating the dirt of the wastewater by generating flocks. The waste water is such that dirt is dissolved by a detergent or the like. For example, there is waste water of a warm bath facility that contains organic soil components and easily generates flocks, and further, it is generated in a washing place of the warm bath facility. Can target bathroom drainage.
１０は分離処理槽であり、排水の汚れ分を、フロックを生成させて分離処理できるように上下方向に所要の長さを有して設けられている。本形態例の分離処理槽１０は、縦長の起立した筒状であって具体的には円筒形状に設けられている。この分離処理槽１０の内部には、微細な気泡を発生させるように微細気泡発生装置の構成要素である気泡発生部２１が配置されている。この気泡発生部２１は、電気分解などの電気化学反応を行う本実施例のような電極（２１）によって構成できる。また、この気泡発生部２１は、その電極（２１）に限らず、例えばポンプ機構やコンプレッサー機構を使用し、大気中から空気を取り込んで撹拌・混合・溶解をさせて微細気泡を発生できる機械的な原理による微細気泡発生装置における微細気泡を発生させる部位として構成することができる。なお、この微細気泡（図１のＭＢ参照）のことは、マイクロバブとも呼ばれている。 Reference numeral 10 denotes a separation treatment tank, which is provided with a required length in the vertical direction so that wastewater can be separated by generating flocs. The separation processing tank 10 of the present embodiment is a vertically long cylindrical shape, and is specifically provided in a cylindrical shape. Inside the separation processing tank 10, a bubble generating unit 21 which is a constituent element of the fine bubble generating device is disposed so as to generate fine bubbles. This bubble generation part 21 can be comprised by the electrode (21) like an Example which performs electrochemical reactions, such as electrolysis. In addition, the bubble generating unit 21 is not limited to the electrode (21), but, for example, using a pump mechanism or a compressor mechanism, mechanically capable of generating fine bubbles by taking in air from the atmosphere and stirring, mixing, and dissolving. It can be configured as a portion for generating fine bubbles in a fine bubble generating apparatus based on a simple principle. The fine bubbles (see MB in FIG. 1) are also called microbabs.
また、本形態例では、微細気泡発生装置２０の気泡発生部（電極２１）が、微細気泡が放出される上方が開放された箱状の収納部２２に収納されて配置され、その収納部２２には、下方から電解液が供給されるように、電解液の供給装置２３が電解液供給管路２４を介して接続されている。なお、電極２１としては、板状のものが所要の間隔を置いて複数並行に配置されて構成されたものを用いることができる。本形態例では、このように複数の電極２１によってユニット化された電極ユニットの複数が、分離処理槽１０内に配されている。図２〜４の形態例では、４個の電極ユニットが装着されている。また、６０は配電制御盤であり、電極２１に電力を供給できるように結線されている。 Further, in the present embodiment, the bubble generating unit (electrode 21) of the fine bubble generating device 20 is stored and arranged in a box-shaped storage unit 22 that is open on the upper side from which the fine bubbles are released. In addition, an electrolytic solution supply device 23 is connected via an electrolytic solution supply line 24 so that the electrolytic solution is supplied from below. In addition, as the electrode 21, a plate-shaped electrode can be used in which a plurality of electrodes are arranged in parallel at a predetermined interval. In this embodiment, a plurality of electrode units that are unitized by the plurality of electrodes 21 are arranged in the separation processing tank 10. 2 to 4, four electrode units are mounted. Reference numeral 60 denotes a power distribution control panel, which is wired so that power can be supplied to the electrode 21.
これによれば、電解液の濃度を局所的に高めることができ、電気分解の効率を高めることができるため、微細気泡を効率良く大量に発生させることができる。なお、電解液は、分散や分解される速度との関係で、その濃度を適正に維持できる程度にゆっくりと流入されるように、電解液の供給装置２３によって供給すればよい。 According to this, since the density | concentration of electrolyte solution can be raised locally and the efficiency of electrolysis can be raised, a fine bubble can be efficiently generated in large quantities. Note that the electrolytic solution may be supplied by the electrolytic solution supply device 23 so that the electrolytic solution flows slowly enough to maintain the concentration appropriately in relation to the speed of dispersion and decomposition.
また、微細気泡を生成する電極２１は、下降して浄化された処理水によって囲まれ、電解液の供給装置２３から供給される電解液も汚れ分を含んでいるものではない。すなわち、電解液の供給装置２３から供給される電解液は処理水によって希釈されるが、その処理水と電解液はどちらも汚れ分をほとんど含んでいない。従って、その電極２１の周囲近傍ではフロックがほとんど発生せず、電極２１がフロックによって閉塞することがなく、電極２１間の短絡は生じない。また、一定時間ごとに、電極２１の極性を変えるため、スケールの付着もない。さらに、本形態例では、電解液の電解質として、次亜塩素酸ナトリウムを使用しており、処理水の殺菌を行うことができる。なお、電解質としては、次亜塩素酸ナトリウムに限定されることはなく、処理条件に応じて他の化学物質を適宜に用いることができるのは勿論である。 Moreover, the electrode 21 which produces | generates a fine bubble is enclosed by the treated water which descend | falls and was purified, and the electrolyte solution supplied from the electrolyte supply device 23 does not also contain a dirt part. That is, the electrolytic solution supplied from the electrolytic solution supply device 23 is diluted with the treated water, but both the treated water and the electrolytic solution contain almost no dirt. Therefore, almost no flock is generated in the vicinity of the periphery of the electrode 21, the electrode 21 is not blocked by the flock, and a short circuit between the electrodes 21 does not occur. Moreover, since the polarity of the electrode 21 is changed at regular intervals, there is no scale adhesion. Furthermore, in this embodiment, sodium hypochlorite is used as the electrolyte of the electrolytic solution, and the treated water can be sterilized. The electrolyte is not limited to sodium hypochlorite, and other chemical substances can of course be used as appropriate according to the processing conditions.
１３は原水流入口であり、分離処理槽１０の気泡発生部（電極２１）が配された上側に、汚れ分の分離が好適になされる距離となるように所要の間隔を置いて、汚れ排水の原水を供給できるように設けられている。
また、本形態例では分離処理槽１０の中心に対して偏心した状態に原水流入口１３が連通するように設けられている。このため、原水の回るような流れが生じ、その流れによって効率良く且つ隅々まで行き届くように、原水を分離処理槽１０内へ導入することができる。
Reference numeral 13 denotes a raw water inlet, and the waste water is disposed on the upper side of the separation treatment tank 10 where the bubble generating part (electrode 21) is disposed at a predetermined interval so as to be a distance at which the dirt is suitably separated. It is provided so that raw water can be supplied.
In this embodiment, the raw water inlet 13 is provided so as to communicate with the center of the separation treatment tank 10 in an eccentric state. Therefore, the raw water can be introduced into the separation treatment tank 10 so that a flow that flows around the raw water is generated and efficiently reaches every corner by the flow.
また、原水を供給する装置であって、分離処理槽１０に供給される排水の原水に、少なくとも凝集剤を含む薬品が混合・撹拌されるように、薬品を原水に投入する薬品の投入装置３１と、その原水をその薬品とを撹拌させる撹拌混合部３２とを備える原水の供給装置３０が設けられている。図２に示す形態例では、原水が、排水槽３３から送水ポンプ３４によって、原水給水管路３５、撹拌混合部３２、原水流入口１３を介して分離処理槽１０へ供給されるように構成され、前述の原水の供給装置３０が設けられている。また、図２に示す形態例では、薬品の投入装置３１として、アルカリ剤の投入装置３１ａと凝集剤の投入装置３１ｂが配設されている。 Moreover, it is an apparatus which supplies raw | natural water, Comprising: The chemical | drug | medicine injection | throwing-in apparatus 31 which throws a chemical | medical agent into raw | natural water so that the chemical | medical agent containing a coagulant | flocculant may be mixed and stirred with the raw | natural water of the waste_water | drain And a raw water supply device 30 including a stirring and mixing unit 32 that stirs the raw water with the chemicals. In the embodiment shown in FIG. 2, the raw water is configured to be supplied from the drainage tank 33 by the water supply pump 34 to the separation treatment tank 10 through the raw water supply pipe 35, the stirring and mixing unit 32, and the raw water inlet 13. The above-described raw water supply device 30 is provided. In the embodiment shown in FIG. 2, an alkaline agent charging device 31 a and a flocculant charging device 31 b are disposed as the chemical charging device 31.
１４は処理水流出口であり、分離処理槽１０の気泡発生部（電極２１）が配された下側で分離処理槽１０の内底面から所要の間隔を置いた位置に、排水が浄化された処理済みの水である処理水が流出されるように設けられている。
本形態例では、分離処理槽１０の内部まで挿入された状態の処理水間路４０の先端開口４１が下方を向いた状態に開口して設けられていることで、処理水流出口１４が構成されている。これによれば、沈殿物となるように下降する固形物の流入を防止して浄化性能を高めることができる。
Reference numeral 14 denotes a treated water outlet, which is a treatment in which waste water is purified at a position spaced from the inner bottom surface of the separation treatment tank 10 on the lower side where the bubble generating part (electrode 21) of the separation treatment tank 10 is arranged. It is provided so that treated water, which is already water, flows out.
In the present embodiment, the treated water outlet 14 is configured by providing the tip opening 41 of the treated water passage 40 in a state of being inserted to the inside of the separation treatment tank 10 so as to face downward. ing. According to this, purification | cleaning performance can be improved by preventing the inflow of the solid substance which falls so that it may become a deposit.
また、１５は汚れ濃縮水排出口であり、分離処理槽１０の上端部に、フロックを伴って汚れ分が濃縮された水である汚れ濃縮水が排出されるように設けられている。 Reference numeral 15 denotes a dirt concentrated water discharge port, which is provided at the upper end of the separation treatment tank 10 so that the dirt concentrated water, which is the water in which the dirt content is concentrated with a flock, is discharged.
以上の構成によれば、原水の流れは、処理水が下方の処理水流出口１４から流出されるため下降流であり、電極２１から発生した微細気泡の流れは、気泡は密度が低くて軽いため上昇流となっている。すなわち、その原水の流れとその微細気泡の流れとの関係においては対抗流となっており、両者（原水と微細気泡）が効率良く接触できる相互間の流れとなっている。このため、フロックの凝集効果を高めると共に、その浮上効果を高め、効率良く汚れ分を分離でき、排水を効率良く浄化できる。
また、本形態例では、原水流入口１３が偏心した位置に設けられているため、原水が回るように流入して効率よく全面的に微細気泡に接触でき、これによっても効率良く汚れ分を分離できる効果がある。
According to the above configuration, the raw water flow is a downward flow because the treated water flows out from the lower treated water outlet 14, and the flow of fine bubbles generated from the electrode 21 is light because the bubbles are low in density. It is rising. That is, in the relationship between the flow of the raw water and the flow of the fine bubbles, it is a counter flow, and it is a flow between them (raw water and fine bubbles) that can efficiently contact each other. For this reason, the floc aggregation effect is enhanced, the floating effect is enhanced, the dirt can be separated efficiently, and the waste water can be purified efficiently.
Further, in this embodiment, the raw water inlet 13 is provided at an eccentric position, so that the raw water flows in so that it can be rotated and can be brought into contact with the fine bubbles over the entire surface, thereby separating the dirt efficiently. There is an effect that can be done.
本形態例では、分離処理槽１０の上端面１６が鏡板状に上方へ膨らんだ湾曲面状に形成されており、汚れ濃縮水排出口１５がその鏡板状の上端面１６の最上部である中央部に設けられている。なお、この汚れ濃縮水排出口１５から排出される汚れ濃縮水は、その排出流量を絞ることで、より高濃縮が可能になるが、排水として流すことが許容されるＢＯＤ濃度の基準値内とするなど、適宜にその流量を設定すれば良い。 In the present embodiment, the upper end surface 16 of the separation treatment tank 10 is formed in a curved surface shape that swells upward in the shape of a mirror plate, and the dirt concentrated water discharge port 15 is a central portion that is the uppermost portion of the upper surface 16 of the mirror plate shape. Provided in the department. The dirt concentrated water discharged from the dirt concentrated water discharge port 15 can be concentrated at a higher concentration by reducing the discharge flow rate, but within the reference value of the BOD concentration that is allowed to flow as waste water. For example, the flow rate may be set appropriately.
また、その汚れ濃縮水排出口１５には、その汚れ濃縮水排出口１５から延長される排水管路５０よりも上方の大気に開放するように挿入された状態に設けられて、分離処理槽１０内の上端部が負圧になった際に大気（空気）を導入することができる大気導入管路５２が設けられている。なお、この大気導入管路５２には、逆止弁を装着することで、大気（空気）の導入のみを許容し、分離処理槽１０から水（汚れ濃縮水）が出ることを阻止することができる。 Further, the dirt concentrated water discharge port 15 is provided in a state of being inserted so as to be open to the atmosphere above the drain pipe 50 extending from the dirt concentrated water discharge port 15. An air introduction pipe 52 is provided that can introduce air (air) when the upper end of the inside becomes negative pressure. In addition, by installing a check valve in the atmosphere introduction pipe line 52, only introduction of the atmosphere (air) is allowed, and water (dirt concentrated water) can be prevented from being discharged from the separation treatment tank 10. it can.
また、本形態例では、汚れ濃縮水排出口１５に接続されて汚れ濃縮水を排水する排水管路５０の延長部５１において、サイフォン効果を利用できるように、通水断面がその排水管路５０の根元側の部分よりも小さく且つ下方に位置するように設けられている。 In the present embodiment, the drain cross section of the drain pipe 50 is connected to the dirt concentrated water discharge port 15 so that the siphon effect can be used in the extension 51 of the drain pipe 50 that drains the dirt concentrated water. It is provided so as to be smaller than and located below the portion on the root side.
汚れ成分を分離する処理時間が長くなると、フロックが分離処理槽１０の上端部１７の内壁面に付着していくが、サイフォンを利用して大気導入管路５２から空気を吸引させ、その吸引空気による気泡を利用してその上端部１７の内壁面に付着したフロックを除去できる。
汚れ濃縮水では、微細気泡によるガスが出るため、そのままで排水する場合、そのガスが邪魔をしてサイフォン効果を生じないが、排水管路５０の上部に空気が溜まる部分を設けることで、水とガスが分離して水だけが排水側に進むため、サイフォン効果を生じさせることができる。これによれば、効率良く、しかも装置の内部を洗浄するようにして汚れ濃縮水を排水することができる。
When the processing time for separating the dirt component becomes longer, the floc adheres to the inner wall surface of the upper end portion 17 of the separation processing tank 10, but air is sucked from the atmosphere introduction pipe 52 using a siphon, and the sucked air The flocs adhering to the inner wall surface of the upper end portion 17 can be removed using the bubbles generated by
In the case of dirt concentrated water, gas due to fine bubbles comes out, so when draining as it is, the gas does not interfere with the siphon effect. However, by providing a portion where air accumulates in the upper part of the drain pipe 50, Since the gas is separated and only water advances to the drain side, a siphon effect can be produced. According to this, the dirty concentrated water can be drained efficiently and so as to clean the inside of the apparatus.
また、４２は調整弁（図２参照）であり、配電制御盤６０によって、処理水の排出量を調整できるように、処理水管路４０の中途部に設けられている。なお、４５は処理水出口であり、処理水管路４０の末端で処理水の出口になっている。
さらに、４３は循環管路であり、分離処理槽１０の底部と上下方向の中途部とを接続するように設けられている。４４は循環ポンプであり、循環管路４３の中途部に設けられている。これによれば、分離処理槽１０の下部に沈殿したフロックなどを含めて、被処理水を再度分離処理槽１０へ投入できるように配されている。この循環ポンプ４４には、フロックをすり潰すように破砕する機能を備えおり、適切に被処理水を循環できる。なお、４６はドレン口である。
また、１８は内部確認用窓であり、分離処理槽１０の側面に設けられている。
Reference numeral 42 denotes an adjustment valve (see FIG. 2), which is provided in the middle of the treated water pipeline 40 so that the amount of treated water discharged can be adjusted by the power distribution control panel 60. Reference numeral 45 denotes a treated water outlet, which is a treated water outlet at the end of the treated water pipe 40.
Further, reference numeral 43 denotes a circulation pipe, which is provided so as to connect the bottom portion of the separation processing tank 10 and the midway portion in the vertical direction. A circulation pump 44 is provided in the middle of the circulation line 43. According to this, it arrange | positions so that to-be-processed water can be thrown into the separation processing tank 10 again including the floc etc. which settled in the lower part of the separation processing tank 10. FIG. The circulation pump 44 has a function of crushing the floc so as to crush the water, and can appropriately circulate the water to be treated. Reference numeral 46 denotes a drain port.
Reference numeral 18 denotes an internal confirmation window, which is provided on the side surface of the separation processing tank 10.
次に、以上の構成にかかる排水の処理装置の作用について説明する。
分離処理槽１０は、図１や図２に示すように、基本的に筒状の一室の液槽であるが、上から排水濃縮部１０Ｃ、低速撹拌部１０Ａ、浮上分離部１０Ｂという部位に便宜的に分けることができる。
低速撹拌部１０Ａは、分離処理槽１０における上下方向の中途の部分であり、原水流入口１３が偏心された状態で接続されているため、この低速撹拌部１０Ａの内部では緩やかな渦流が生じることになる。
浮上分離部１０Ｂは、分離処理槽１０における上下方向の下側の部分（低速撹拌部１０Ａより下側の部分）であり、この内部では、微細気泡の上方向への流れがあり、処理水の下方向への流れがある。
また、排水濃縮部１０Ｃは、分離処理槽１０における上下方向の上側の部分（低速撹拌部１０Ａより上側の部分）であり、この内部では、汚れ濃縮水の上方向への流れがある。
Next, the operation of the wastewater treatment apparatus according to the above configuration will be described.
As shown in FIG. 1 and FIG. 2, the separation treatment tank 10 is basically a cylindrical one-chamber liquid tank. From the top, a separation tank 10C, a low-speed stirring section 10A, and a floating separation section 10B are provided. It can be divided for convenience.
The low-speed stirring unit 10A is an intermediate part in the vertical direction in the separation treatment tank 10, and the raw water inlet 13 is connected in an eccentric state, so that a gentle vortex flow is generated inside the low-speed stirring unit 10A. become.
The floating separation unit 10B is a lower part in the vertical direction of the separation treatment tank 10 (a part below the low speed stirring unit 10A), and inside this, there is a flow of fine bubbles upward, and the treated water There is a downward flow.
Further, the drainage concentration unit 10C is an upper part in the vertical direction in the separation treatment tank 10 (a part above the low speed stirring unit 10A), and inside this, there is an upward flow of the dirt concentrated water.
以上のような流れの作用によってフロックが効率良く生成され、そのフロックが、浮上分離部１０Ｂで微細気泡と出合って、その微細気泡に合流・付着して浮上して行くように、この分離処理槽１０では、原水流入口１３と微細気泡の発生源である電極２１の間に所要の距離がある。すなわち、汚れ濃縮水の排水量よりも処理水の水量が大きいため、下方への流れが強くなって軽量であるフロックも下方へ流され易いが、微細気泡の浮上作用によれば、その処理水の下方への流れに対抗させ、フロックを好適に浮上させることができる。この際に、上述した複雑な流れの作用によって、フロックを好適に生成できると共に、そのフロックに微細気泡をより長い時間をかけて万遍無く接触させることができ、フロックを好適に浮上させることができる。 The separation treatment tank is configured so that flocs are efficiently generated by the action of the flow as described above, and the flocs meet the fine bubbles in the floating separation unit 10B and merge and adhere to the fine bubbles and float. 10, there is a required distance between the raw water inlet 13 and the electrode 21 that is a source of fine bubbles. That is, since the amount of treated water is larger than the amount of dirty concentrated water drained, the downward flow becomes stronger and the lighter floc is likely to flow downward, but according to the floating action of fine bubbles, the treated water It is possible to oppose the downward flow and to appropriately float the flock. At this time, a floc can be suitably generated by the action of the complicated flow described above, and fine bubbles can be uniformly contacted with the floc over a longer period of time, so that the floc can be suitably floated. it can.
浮上したフロックは、再度、低速撹拌部１０Ａを通り、排水濃縮部１０Ｃでさらに大きなフロックに成長し、分離処理槽１０の上端部１７にある汚れ濃縮水排出口１５を出て、排水管路５０を通って排水される。そして、この汚れ分の分離と汚れ濃縮水が排出される工程は、比較的短い時間で行われるため、一旦微細気泡に付着して浮上したフロックから、その微細空気が分離してそのフロックが沈殿することを防止でき、分離・浄化効率を向上できる。 The floated flock passes again through the low-speed stirring unit 10A, grows to a larger floc in the drainage concentration unit 10C, exits the dirty concentrated water discharge port 15 at the upper end 17 of the separation treatment tank 10, and drains the pipe 50 Drained through. The process of separating the dirt and discharging the concentrated water of the dirt is performed in a relatively short time, so that the fine air is separated from the flocs once adhering to the fine bubbles and the flocs are precipitated. Can be prevented, and the separation and purification efficiency can be improved.
また、撹拌混合部３２は、薬品を槽内で撹拌・混合する水槽であり、各種薬品が注入されて撹拌・混合され、或いは投入された薬品を撹拌・混合する部分になっている。また、本形態例の撹拌混合部３２は、原水流入口１３に分離処理槽１０ついて偏心した状態で接続されているため、槽内では渦流ができ、各種薬品の撹拌、混合が効率良く行われる。また、渦流のため、壁面にスケールやスライム等が付着しにくい。各種薬品としては、例えば無機凝集剤やｐＨ調整剤があり、水質に対応させて適宜に調整して注入や投入をすれば良い。このように本形態例の装置は、水流等を利用して撹拌混合を行っているため、独立した撹拌機の設置を要しない。 The stirring and mixing unit 32 is a water tank that stirs and mixes chemicals in the tank, and is a part in which various chemicals are injected and stirred or mixed, or the charged chemicals are stirred and mixed. In addition, since the stirring and mixing unit 32 of the present embodiment is connected to the raw water inlet 13 in an eccentric state with respect to the separation treatment tank 10, vortex flow is generated in the tank, and various chemicals are efficiently stirred and mixed. . In addition, due to the vortex, scale, slime, and the like hardly adhere to the wall surface. Examples of the various chemicals include inorganic flocculants and pH adjusters, which may be appropriately adjusted according to the water quality and injected or charged. As described above, the apparatus of this embodiment does not require the installation of an independent stirrer because the stirring and mixing are performed using a water flow or the like.
さらに、汚れ濃縮水は分離処理槽１０に満たされた原水及び処理水によって押し出されるようにして排出され、その汚れ濃縮水に伴ってフロックを強制的に排出するため、フロックを掻き寄せるような装置の設置も要しない。 Further, the concentrated concentrated water is discharged so as to be pushed out by the raw water and treated water filled in the separation treatment tank 10, and the floc is forcedly discharged along with the concentrated concentrated water. No installation is required.
ここで、凝集の原理は、例えば、無機凝集剤としてアルミ系凝集剤が用いられる場合、水中の濁質は、表面が（−）に帯電しているので、相互に反発し合い沈殿しないが、凝集剤を入れると（＋）に帯電したアルミ成分が、濁質の（−）電位を中和して粒子となる。この凝結した微細フロックが水酸化アルミニウムの接着作用により大きなフロックへと生長する。そして、そのフロックの浮上の原理は、微細気泡は、通常の場合、表面が（−）に帯電しており、これに対して、凝集の原理からフロックは（＋）に帯電しているので、フロックに微細気泡が付着して上昇することになる。
ところで、浴室の洗い場の排水に含まれていると考えられる成分としては、陰イオン界面活性剤、陽イオン界面活性剤、非イオン界面活性剤、両性イオン界面活性剤、ヘキサン抽出物質、フルボ酸、有機物などがある。
Here, the principle of agglomeration is, for example, when an aluminum-based aggregating agent is used as the inorganic aggregating agent, the turbidity in water is repelled from each other because the surface is charged (-), and does not precipitate. When a flocculant is added, the (+) charged aluminum component neutralizes the turbid (−) potential to form particles. This condensed fine floc grows into a large floc by the adhesive action of aluminum hydroxide. And the flotation principle of the floc is that the surface of fine bubbles is normally charged (-), whereas the floc is charged (+) from the principle of aggregation. Fine bubbles will adhere to the floc and rise.
By the way, as an ingredient considered to be contained in the waste water of the bathroom washing place, anionic surfactant, cationic surfactant, nonionic surfactant, zwitterionic surfactant, hexane extract, fulvic acid, There are organic matters.
また、分離処理槽１０の排水濃縮部１０Ｃは、図２〜３に示す形態例では、その上端部１７が鏡板によって形成されており、上方へ行くにしたがって断面積が小さくなる形態となっている。つまり、上方へ行くにしたがって通路が細くなる形状であり、排出される汚れ濃縮水の流速が汚れ濃縮水排出口１５へ向かって徐々に速くなる形態となっている。これによれば、鏡板の内壁面にフロックが付着することを可及的に防ぐことができる。さらに、前述したようなサイフォンによる空気の導入を利用することでも、フロックが付着することを可及的に防ぐことができる。 Moreover, the waste water concentration part 10C of the separation treatment tank 10 has a form in which the upper end portion 17 is formed of a mirror plate in the form shown in FIGS. . That is, the passage becomes narrower as it goes upward, and the flow rate of the discharged dirt concentrated water gradually increases toward the dirty concentrated water discharge port 15. According to this, it is possible to prevent the flock from adhering to the inner wall surface of the end plate as much as possible. Furthermore, it is possible to prevent the flock from being attached as much as possible by using the introduction of air by the siphon as described above.
また、図５に示した形態例の排水の処理装置によれば、分離処理槽１０内の上下方向の流れに整流効果のある整流部材７０が、その分離処理槽１０内の原水流入口１３と気泡発生部２１との間の高さ位置に配されている。すなわち、下降流又は上昇流が、より均一に下方又は上方に向かって流れるように整流効果を生じさせる整流部材７０が設けられている。 Further, according to the wastewater treatment apparatus of the embodiment shown in FIG. 5, the rectifying member 70 having a rectifying effect on the vertical flow in the separation treatment tank 10 is connected to the raw water inlet 13 in the separation treatment tank 10. It is arranged at a height position between the bubble generating unit 21. That is, the rectifying member 70 is provided that causes a rectifying effect so that the downward flow or the upward flow flows more uniformly downward or upward.
この整流部材７０は、分離処理槽１０内の軸心に沿う方向である軸心方向（上下方向）の流れ（原水の下降流及び微細な気泡の上昇流）には、抵抗となりにくい形態になっているとよい。本形態例の整流部材７０は、例えば、図５に示すように、板材を縦（上下）に立てた形態に配設されており、上下方向の流れについては抵抗となりにくく、軸心方向に交差する方向の渦流などの横方向の流れについては抵抗となる邪魔板になっており、その横方向の流れを抑制・減衰させ、上下方向の整流効果を合理的に生じさせることができる。なお、整流部材７０としては、上記のような板状に限定されず、格子状、柵状、網状、有孔板状などの部材を適宜に利用することもでき、配置形態も上記のように縦に立てた形態に限定されず、例えば、傾斜させて配置させることや、交差させて配置させることなど、上述の効果が生じるのであれば、複数を並列的、或いは立体的などに設けてもよい。 This rectifying member 70 has a configuration in which resistance to the flow (downward flow of raw water and upward flow of fine bubbles) in the axial direction (vertical direction) that is a direction along the axial center in the separation treatment tank 10 is reduced. It is good to have. For example, as shown in FIG. 5, the rectifying member 70 of the present embodiment is arranged in a form in which the plate material is vertically (up and down), and it is difficult for resistance to flow in the vertical direction and intersects the axial direction. The lateral flow such as the vortex flow in the direction of the flow is a baffle plate that acts as a resistance, and the lateral flow can be suppressed and attenuated, and a vertical rectifying effect can be reasonably produced. The rectifying member 70 is not limited to the plate shape as described above, and members such as a lattice shape, a fence shape, a net shape, and a perforated plate shape can be appropriately used, and the arrangement form is also as described above. It is not limited to the vertically standing form, and for example, if the above-mentioned effects such as being inclined and arranged so as to be intersected, a plurality may be provided in parallel or three-dimensionally. Good.
また、本形態例について、さらに具体的に説明する。本形態例の原水流入口１３は、原水（被処理水）が、分離処理槽１０の偏心した方向へ向って、その分離処理槽１０に流入するように設けられている。このため、原水が旋回するように分離処理槽１０に流入され、分離処理槽１０の下方に設けられた処理水流出口１４に向かって渦巻き状の下降流が生じる。その渦巻き状の下降流のうちの下降する流れのベクトルを除いた横方向の流れのベクトルを抑制・減衰させるように、その流れを規制する整流部材７０が配置されている。これにより、上述したように上下方向の整流効果を合理的に生じさせることができる。 Further, this embodiment will be described more specifically. The raw water inlet 13 according to the present embodiment is provided so that raw water (treated water) flows into the separation processing tank 10 in an eccentric direction of the separation processing tank 10. For this reason, raw | natural water flows into the separation processing tank 10 so that it may rotate, and a spiral downward flow arises toward the treated water outflow port 14 provided in the downward direction of the separation processing tank 10. FIG. A rectifying member 70 for restricting the flow is arranged so as to suppress / attenuate the lateral flow vector excluding the descending flow vector of the spiral downward flow. Thereby, as described above, the vertical rectification effect can be reasonably produced.
これによれば、原水（被処理水）の下降流と、微細な気泡の上昇流とを、より均一に出合わせる対抗流とすることができ、両者（原水と微細気泡）が効率良く接触できる相互間の流れとすることができる。このため、フロックの凝集効果を高めると共に、その浮上効果を高め、効率良く汚れ分を分離でき、排水を効率良く浄化できる。 According to this, it is possible to make the downward flow of raw water (treated water) and the upward flow of fine bubbles more counter-combining, and both (raw water and fine bubbles) can contact efficiently. It can be a flow between each other. For this reason, the floc aggregation effect is enhanced, the floating effect is enhanced, the dirt can be separated efficiently, and the waste water can be purified efficiently.
また、原水の下降流が整流部材７０を通過する際に、その整流部材７０の付近には、小さな渦流が生じる。この小さな渦流は、原水と微細気泡とをより効率的に撹拌・混合する効果を生じさせることができ、排水を効率良く浄化できる。なお、整流部材７０の取り付け位置は、少なくとも、気泡発生部（電極）２１より上方であり、前述の小さな渦流が気泡発生部（電極）２１に当たらない程度に間隔を置くとよい。 Further, when the downward flow of the raw water passes through the rectifying member 70, a small eddy current is generated in the vicinity of the rectifying member 70. This small vortex can produce an effect of more efficiently stirring and mixing the raw water and fine bubbles, and can efficiently purify the waste water. It should be noted that the attachment position of the rectifying member 70 is at least above the bubble generation part (electrode) 21 and should be spaced so that the small vortex mentioned above does not hit the bubble generation part (electrode) 21.
以上の構成によれば、原水流入の偏心による撹拌効果と、微細気泡の上昇流と原水の下降流とが交錯することによる撹拌効果と、整流部材７０の下方に生じる小さな渦流の撹拌効果とによって、フロックと微細気泡との接触が効率良くなされ、より一層排水を効率良く浄化できる。 According to the above configuration, the stirring effect due to the eccentricity of the raw water inflow, the stirring effect due to the crossing of the upward flow of the fine bubbles and the downward flow of the raw water, and the stirring effect of the small vortex generated below the rectifying member 70 The contact between the flocs and the fine bubbles is made efficiently, and the waste water can be purified more efficiently.
本発明によれば、温浴施設などで利用することで、温水である排水を浄化でき、これを熱源として熱交換することで、廃棄していた熱を回収することができる。この際に、処理水（温水）が浄化されているため、熱交換器を汚染することなく、その熱交換の効率を高く維持することができる。また、本発明によれば、浄化された処理水を得ることができ、これを屋根に散水すれば、空調の負荷低減に利用でき、温水として利用すれば冬場は屋根の融雪に有効である。さらに、以上のように処理水を再利用できることで、排水として廃棄する水量（下水量）を低減できる。
また、本発明にかかる排水の処理装置は、前述したように洗剤などにより汚れ分が溶け込んでいるような排水を処理する場合に広く利用でき、温浴施設の排水処理に限らず、汚れ分と洗剤が溶け込んだ排水を処理する洗浄装置の前処理としてその排水を処理する場合などに、広く適用できる。
According to the present invention, wastewater that is warm water can be purified by using it in a warm bath facility or the like, and heat that has been discarded can be recovered by exchanging heat as a heat source. At this time, since the treated water (hot water) is purified, the efficiency of the heat exchange can be maintained high without contaminating the heat exchanger. Further, according to the present invention, purified treated water can be obtained. If this is sprayed on the roof, it can be used for reducing the load of air conditioning. If it is used as hot water, it is effective for melting snow on the roof in winter. Furthermore, since the treated water can be reused as described above, the amount of water discarded as wastewater (the amount of sewage) can be reduced.
In addition, the wastewater treatment apparatus according to the present invention can be widely used for treating wastewater in which dirt is dissolved by a detergent as described above, and is not limited to wastewater treatment in a warm bath facility. The present invention can be widely applied to the case where wastewater is treated as a pretreatment of a cleaning device that treats wastewater in which water is dissolved.
以上、本発明につき好適な形態例を挙げて種々説明してきたが、本発明は以上の形態例に限定されるものではなく、発明の精神を逸脱しない範囲内で多くの改変を施し得るのは勿論のことである。 As described above, the present invention has been variously described with reference to preferred embodiments. However, the present invention is not limited to the above embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.
１０ 分離処理槽
１０Ａ 低速撹拌部
１０Ｂ 浮上分離部
１０Ｃ 排水濃縮部
１３ 原水流入口
１４ 処理水流出口
１５ 汚れ濃縮水排出口
１６ 上端面
１７ 上端部
１８ 内部確認用窓
２０ 微細気泡発生装置
２１ 気泡発生部、電極
２２ 収納部
２３ 電解液の供給装置
２４ 電解液供給管路
３０ 原水の供給装置
３１ 薬品の投入装置
３１ａ アルカリ剤の投入装置
３１ｂ 凝集剤挿入装置
３２ 撹拌混合部
３３ 排水槽
３４ 送水ポンプ
３５ 原水給水管路
４０ 処理水管路
４１ 先端開口
４２ 調整弁
４３ 循環管路
４４ 循環ポンプ
４５ 処理水出口
４６ ドレン口
５０ 排水管路
５１ 延長部
５２ 大気導入管路
６０ 配電制御盤
７０ 整流部材
ＭＢ マイクロバブ
DESCRIPTION OF SYMBOLS 10 Separation processing tank 10A Low speed stirring part 10B Levitation separation part 10C Waste water concentration part 13 Raw water inlet 14 Treated water outlet 15 Dirt concentrated water outlet 16 Upper end surface 17 Upper end part 18 Internal confirmation window 20 Fine bubble generating device 21 Bubble generating part , Electrode 22 Storage unit 23 Electrolyte supply device 24 Electrolyte supply line 30 Raw water supply device 31 Chemical input device 31a Alkaline agent input device 31b Coagulant insertion device 32 Stirring and mixing unit 33 Drainage tank 34 Water feed pump 35 Raw water Water supply pipe 40 Treatment water pipe 41 Tip opening 42 Regulating valve 43 Circulation pipe 44 Circulation pump 45 Treatment water outlet 46 Drain port 50 Drain pipe 51 Extension part 52 Atmospheric introduction pipe 60 Distribution control panel 70 Rectification member MB Micro bubble
Claims (8)
該分離処理槽の内部には、微細な気泡を発生させるように微細気泡発生装置の構成要素である気泡発生部が配置され、
前記分離処理槽の前記気泡発生部が配された上側に、排水の原水が供給される原水流入口が設けられ、
前記分離処理槽の前記気泡発生部が配された下側に、排水が浄化された処理済みの水である処理水が流出される処理水流出口が設けられ、
前記分離処理槽の上端部に、フロックを伴って汚れ分が濃縮された水である汚れ濃縮水が排出される汚れ濃縮水排出口が設けられている排水の処理装置であって、
前記微細気泡発生装置の前記気泡発生部が電気化学反応を行う電極によって構成され、該電極が、微細気泡の放出される上方が開放された箱状の収納部に収納されて配置され、該収納部には、下方から電解液が供給されるように、電解液の供給装置が接続されていることを特徴とする排水の処理装置。 Provided with a separation treatment tank provided with a required length in the vertical direction so that the wastewater can be separated by generating flocks,
Inside the separation treatment tank, a bubble generating unit that is a component of the fine bubble generating device is arranged so as to generate fine bubbles,
On the upper side where the bubble generation part of the separation treatment tank is arranged, a raw water inlet to which raw water for drainage is supplied is provided,
On the lower side of the separation processing tank where the bubble generating unit is arranged, a treated water outlet is provided through which treated water, which is treated water whose waste water has been purified, flows out,
A wastewater treatment apparatus provided at the upper end of the separation treatment tank is provided with a dirt concentrated water discharge port for discharging dirt concentrated water, which is water in which dirt is concentrated with flocks ,
The bubble generating portion of the fine bubble generating device is configured by an electrode that performs an electrochemical reaction, and the electrode is stored and arranged in a box-shaped storage portion in which an upper portion from which the fine bubbles are released is opened. A wastewater treatment apparatus , wherein an electrolyte solution supply device is connected to the section so that the electrolyte solution is supplied from below .
該分離処理槽の内部には、微細な気泡を発生させるように微細気泡発生装置の構成要素である気泡発生部が配置され、
前記分離処理槽の前記気泡発生部が配された上側に、排水の原水が供給される原水流入口が設けられ、
前記分離処理槽の前記気泡発生部が配された下側に、排水が浄化された処理済みの水である処理水が流出される処理水流出口が設けられ、
前記分離処理槽の上端部に、フロックを伴って汚れ分が濃縮された水である汚れ濃縮水が排出される汚れ濃縮水排出口が設けられている排水の処理装置であって、
前記汚れ濃縮水排出口に水平方向に延びる形状に接続されて設けられて前記汚れ濃縮水を排水する排水管路の延長部において、サイフォン効果を利用できるように、通水断面が該排水管路の根元側の部分よりも小さく且つ下方に位置するように設けられていることを特徴とする排水の処理装置。 Provided with a separation treatment tank provided with a required length in the vertical direction so that the wastewater can be separated by generating flocks,
Inside the separation treatment tank, a bubble generating unit that is a component of the fine bubble generating device is arranged so as to generate fine bubbles,
On the upper side where the bubble generation part of the separation treatment tank is arranged, a raw water inlet to which raw water for drainage is supplied is provided,
On the lower side of the separation processing tank where the bubble generating unit is arranged, a treated water outlet is provided through which treated water, which is treated water whose waste water has been purified, flows out,
A wastewater treatment apparatus provided at the upper end of the separation treatment tank is provided with a dirt concentrated water discharge port for discharging dirt concentrated water, which is water in which dirt is concentrated with flocks ,
The drainage pipe has a water passage section so that a siphon effect can be used in an extension of a drainage pipe that is connected to the dirt concentrated water discharge port in a shape extending in the horizontal direction and drains the dirt concentrated water. A wastewater treatment apparatus , characterized in that the wastewater treatment apparatus is provided so as to be smaller than and positioned below a portion on the root side of the water.
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