JPH0318954B2 - - Google Patents
Info
- Publication number
- JPH0318954B2 JPH0318954B2 JP60225094A JP22509485A JPH0318954B2 JP H0318954 B2 JPH0318954 B2 JP H0318954B2 JP 60225094 A JP60225094 A JP 60225094A JP 22509485 A JP22509485 A JP 22509485A JP H0318954 B2 JPH0318954 B2 JP H0318954B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- sludge
- channel
- aeration tank
- oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 239000010802 sludge Substances 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 15
- 238000011282 treatment Methods 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000000108 ultra-filtration Methods 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、下降流路とそれに連なる上昇流路を
設け、前記上昇流路から下降流路に微生物含有被
処理水を送る循環路を設け、前記下降流路に酸素
含有ガスを供給する結気装置を設けた曝気槽、並
びに、その曝気槽からの汚泥含有水から汚泥を除
去する固液分離装置を有する水処理装置に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a downward flow path and an upward flow path connected thereto, and a circulation path for sending water to be treated containing microorganisms from the upward flow path to the downward flow path. The present invention relates to a water treatment device having an aeration tank provided with an aeration device for supplying oxygen-containing gas to the downward flow path, and a solid-liquid separation device for removing sludge from sludge-containing water from the aeration tank.
従来、固液分離装置を形成するに、バンドやポ
リマー等の凝集剤を混和して汚泥を沈澱する凝集
沈澱槽を設けていた。
Conventionally, to form a solid-liquid separator, a coagulation-sedimentation tank is provided in which sludge is mixed with a flocculant such as a band or a polymer to precipitate the sludge.
しかし、高価な凝集剤を大量消費するため運転
経費が高騰し、経済性において一層改良の余地が
あつた。
However, since a large amount of expensive flocculant is consumed, operating costs have increased, and there is still room for further improvement in terms of economic efficiency.
本発明の目的は、固液分離のための凝集剤を不
要にできるようにし、しかも、固液分離に要する
電力を効率良く水処理に利用できるようにする点
にある。 An object of the present invention is to make it possible to eliminate the need for a flocculant for solid-liquid separation, and to make it possible to efficiently utilize the electric power required for solid-liquid separation for water treatment.
本発明の特徴構成は、曝気槽からの処理水に対
する固液分離装置が、限外ろ過膜を有するろ過装
置であり、前記曝気槽とろ過装置を、そのろ過装
置に汚泥含有水を加圧供給するポンプ付給水路
と、前記ろ過装置からの汚泥含有水を前記曝気槽
に圧送する還水路とによつて接続し、その還水路
に汚泥含有水の流動に伴つて酸素含有ガスを汚泥
含有水中に吸入するエゼクターを設けたことにあ
り、その作用効果は次の通りである。
The characteristic configuration of the present invention is that the solid-liquid separation device for treated water from the aeration tank is a filtration device having an ultrafiltration membrane, and the aeration tank and the filtration device are connected to each other, and sludge-containing water is supplied under pressure to the filtration device. A water supply channel equipped with a pump is connected to the water supply channel, and a return channel is used to forcefully send the sludge-containing water from the filtration device to the aeration tank. The main reason for this is that an ejector for inhalation is provided, and its effects are as follows.
〔作用〕
つまり、限界ろ過膜によつて汚泥含有水をろ過
すれば、凝集剤によて汚泥をフロツク化しなくて
も、十分に汚泥を除去したろ過水が得られ、従来
必要とした多額の凝集剤費用を不要にできる。ち
なみに、SSが1800mg／の原水を処理したとこ
ろ、ろ過水のSSは10mg／であつた。[Function] In other words, if sludge-containing water is filtered using an ultrafiltration membrane, filtrate water with sufficient sludge removed can be obtained without the need to flocculate the sludge with a flocculant, and the large amount of water that was previously required can be obtained. Eliminates the need for flocculant costs. By the way, when raw water with an SS of 1800 mg/was treated, the SS of the filtered water was 10 mg/.
他方、限界ろ過膜を使用すると、かなり高圧の
処理水をろ過装置に供給する必要があり、ポンプ
の駆動に要する電力費がかなり高くなる。したが
つて、水圧を単にろ過だけに利用すると、凝集剤
費用を零にした経済効果が電力費によつて損なわ
れると共に、多量の水圧エネルギーが無駄になる
問題を派生する。 On the other hand, when using ultrafiltration membranes, it is necessary to supply treated water to the filtration device at a fairly high pressure, which increases the electricity cost required to drive the pump. Therefore, if water pressure is used only for filtration, the economic effect of eliminating the coagulant cost will be undermined by the electricity cost, and a large amount of water pressure energy will be wasted.
しかし、本発明によれば、還水路のエゼクター
においてろ過に利用されなかつた水圧エネルギー
により酸素含有ガスを汚泥含有水に供給するか
ら、水圧エネルギーを曝気処理に有効利用でき
て、総合的に経済効果を十分に図れると共に、電
力を有効に水処理に利用できる。すなわち、従
来、必要酸素の全量を下降流路に直接供給される
酸素含有ガスに頼つていたが、気液比の関係から
循環路のポンプにより多量の水を循環しなければ
ならなかつたが、本発明によれば、その循環水量
を大巾に減少できる。 However, according to the present invention, oxygen-containing gas is supplied to the sludge-containing water using the hydraulic energy that was not used for filtration in the ejector of the return waterway, so the hydraulic energy can be effectively used for aeration treatment, resulting in a comprehensive economic effect. In addition to being able to sufficiently achieve this, electric power can be used effectively for water treatment. In other words, conventionally, the entire amount of oxygen required was dependent on the oxygen-containing gas supplied directly to the downflow path, but due to the gas-liquid ratio, a large amount of water had to be circulated by a pump in the circulation path. According to the present invention, the amount of circulating water can be greatly reduced.
その結果、微生物を利用しての曝気処理、及
び、処理水からの汚泥除去処理を、運転経費を十
分に節減した状態で、かつ、電力の無駄がほとん
ど無い状態で行えるようになり、極めて高性能の
曝気装置を提供できるようになつた。
As a result, it has become possible to carry out aeration treatment using microorganisms and sludge removal treatment from treated water with a sufficient reduction in operating costs and with almost no wasted electricity. We are now able to provide high-performance aeration equipment.
次に、図面により実施例を示す。 Next, examples will be shown with reference to drawings.
水深が４ｍ以上の深槽型曝気槽１内に、下降流
路R1を形成する筒状体２をほぼ鉛直姿勢で設け
て、下降流路R1に連なる上昇流路R2を曝気槽１
内に形成してある。 A cylindrical body 2 forming a descending channel R 1 is installed in a substantially vertical position in a deep tank type aeration tank 1 with a water depth of 4 m or more, and an ascending channel R 2 connected to the descending channel R 1 is connected to the aeration tank 1.
It is formed inside.
曝気槽１の上部に接続したサクシヨン槽３にポ
ンプP1付管路４の吸込側を接続し、筒状体２の
上端部に配置したエゼクター５のノズルに管路４
の吐出側を接続し、管路４によつて上昇流路R2
から下降流路R1に微生物含有被処理水を送る循
環路R3を形成してある。 The suction side of the pipe line 4 with pump P 1 is connected to the suction tank 3 connected to the upper part of the aeration tank 1, and the pipe line 4 is connected to the nozzle of the ejector 5 arranged at the upper end of the cylindrical body 2.
Connect the discharge side of
A circulation path R3 is formed to send the microorganism-containing water to be treated from there to the downward flow path R1 .
エゼクター５の吸気路５ａに空気吸入量調節弁
V1を接続し、微生物含有被処理水の流動に伴つ
て適量の空気を下降流路R1に供給するように構
成してある。 An air intake amount control valve is provided in the intake passage 5a of the ejector 5.
V 1 is connected to supply an appropriate amount of air to the downward flow path R 1 as the water to be treated containing microorganisms flows.
有機材料又は無機材料から成るチユーブ状やフ
イルム状等の限外ろ過膜６ａを有するろ過装置６
を設け、曝気槽１とろ過装置６を接続するに、サ
クシヨン槽３からろ過装置６に汚泥含有水を例え
ば５Kg／cm2程度で加圧供給するポンプP2付給水
路７、並びに、ろ過装置６から上昇流路R2の下
端側に汚泥含有水を例えば３Kg／cm2程度で圧送す
る還水路８を設けてある。 A filtration device 6 having a tube-shaped, film-shaped, etc. ultrafiltration membrane 6a made of an organic or inorganic material.
A water supply channel 7 equipped with a pump P 2 is provided to connect the aeration tank 1 and the filtration device 6, and a pump P 2 that supplies sludge-containing water under pressure from the suction tank 3 to the filtration device 6 at, for example, about 5 kg/cm 2 , and the filtration device A return channel 8 is provided from 6 to the lower end side of the ascending channel R 2 for pumping sludge-containing water at a rate of, for example, about 3 kg/cm 2 .
ろ過装置６のろ過水回収路６ｂに高度処理設備
９を接続し、オゾン処理、活性炭処理等の適当な
高次処理を施した清水が得られるように構成して
ある。 An advanced treatment facility 9 is connected to the filtrate recovery path 6b of the filtration device 6, so that fresh water that has been subjected to appropriate high-level treatments such as ozone treatment and activated carbon treatment can be obtained.
還水路８に、汚泥含有水の流動に伴つて空気を
吸入するエゼクター１０を設け、エゼクター１０
の吸気路１０ａに空気吸入量調整弁V2を接続し、
還水路８や上昇流路R2においても曝気処理を行
えるように構成してある。 The return channel 8 is provided with an ejector 10 that sucks air as the sludge-containing water flows.
Connect the air intake amount adjustment valve V 2 to the intake path 10a of
The structure is such that aeration treatment can also be performed in the return channel 8 and the ascending channel R2 .
サクシヨン槽３に汚泥分離槽１１を接続して、
余剰汚泥を回収できるように、かつ、処理水をポ
ンプP3付戻り路１２でサクシヨン槽３に還元で
きるように構成してある。 Connecting the sludge separation tank 11 to the suction tank 3,
It is constructed so that excess sludge can be recovered and treated water can be returned to the suction tank 3 through a return path 12 with a pump P3.
次に別実施例を説明する。 Next, another embodiment will be described.
下降流路R1と上昇流路R2を形成する具体的構
造は適当に変更でき、また、下降流路R1に空気
や酸素富化空気や酸素高濃度ガス等の酸素含有ガ
スを供給する手段も適当に変更でき、それら手段
を給気装置５と総称する。 The specific structure for forming the downward flow path R1 and the upward flow path R2 can be changed as appropriate, and the downward flow path R1 can be supplied with air, oxygen-containing gas such as oxygen-enriched air, oxygen-rich gas, etc. The means can also be changed appropriately, and these means are collectively referred to as the air supply device 5.
還水路８のエゼクター１０は、空気や酸素富化
空気や酸素高濃度ガスを供給するものであつても
よく、要するに酸素含有ガスウを供給するもので
あればよい。 The ejector 10 of the return channel 8 may be one that supplies air, oxygen-enriched air, or high-oxygen-concentration gas; in short, it may be one that supplies oxygen-containing gas.
上昇流路R2から下降流路R1に被処理水を循環
させる構成は適宜変更が可能であり、例えばサク
シヨン槽３を省略してもよい。 The configuration for circulating the water to be treated from the ascending channel R2 to the descending channel R1 can be modified as appropriate; for example, the suction tank 3 may be omitted.
被処理水の種類は、例えばし尿系廃水、下水、
その他いかなるものでもよい。 The types of water to be treated include, for example, night soil wastewater, sewage,
It can be anything else.
図面は、本発明の実施例を示すフローシートで
ある。
１……曝気装置、５……給気装置、６……ろ過
装置、６ａ……限外ろ過膜、７……給水路、８…
…還水路、１０……エゼクター、P2……ポンプ、
R1……下降流路、R2……上昇流路、R3……循環
路。
The drawing is a flow sheet illustrating an embodiment of the invention. 1... Aeration device, 5... Air supply device, 6... Filtration device, 6a... Ultrafiltration membrane, 7... Water supply channel, 8...
...Return channel, 10...Ejector, P 2 ...Pump,
R 1 ... Downward flow path, R 2 ... Upward flow path, R 3 ... Circulation path.
Claims (1)
け、前記上昇流路R2から下降流路R1に微生物含
有被処理水を送る循環路R3を設け、前記下降流
路R1に酸素含有ガスを供給する給気装置５を設
けた曝気槽１、並びに、その曝気槽１からの汚泥
含有水から汚泥を除去する固液分離装置を有する
水処理装置であつて、前記固液分離装置が、限外
ろ過膜６ａを有するろ過装置６であり、前記曝気
槽１とろ過装置６を、そのろ過装置６に汚泥含有
水を加圧供給するポンプP2付給水路７と、前記
ろ過装置６からの汚泥含有水を前記曝気槽１に圧
送する還水路８とによつて接続し、その還水路８
に、汚泥含有水の流動に伴つて酸素含有ガスを汚
泥含有水中に吸入するエゼクター１０を設けてあ
る水処理装置。1. A descending channel R 1 and an ascending channel R 2 connected thereto are provided, a circulation channel R 3 is provided for sending water to be treated containing microorganisms from the ascending channel R 2 to the descending channel R 1 , and the descending channel R 1 is provided. The water treatment device has an aeration tank 1 provided with an air supply device 5 for supplying oxygen-containing gas to the aeration tank 1, and a solid-liquid separation device for removing sludge from the sludge-containing water from the aeration tank 1, the water treatment device comprising: The separation device is a filtration device 6 having an ultrafiltration membrane 6a. The sludge-containing water from the filtration device 6 is connected to the aeration tank 1 by a return waterway 8, and the return waterway 8
The water treatment device is equipped with an ejector 10 that sucks oxygen-containing gas into the sludge-containing water as the sludge-containing water flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60225094A JPS6283096A (en) | 1985-10-09 | 1985-10-09 | Water treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60225094A JPS6283096A (en) | 1985-10-09 | 1985-10-09 | Water treatment apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6283096A JPS6283096A (en) | 1987-04-16 |
| JPH0318954B2 true JPH0318954B2 (en) | 1991-03-13 |
Family
ID=16823897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60225094A Granted JPS6283096A (en) | 1985-10-09 | 1985-10-09 | Water treatment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283096A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6217770B1 (en) * | 1998-08-14 | 2001-04-17 | Atp International | Apparatus and method for treatment of water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840971A (en) * | 1971-10-01 | 1973-06-15 | ||
| JPS54102056A (en) * | 1978-01-27 | 1979-08-11 | Ebara Infilco Co Ltd | Process for high-speed treatment of waste water |
| JPS5839840U (en) * | 1981-08-17 | 1983-03-16 | ブラザー工業株式会社 | ultrasonic processing machine |
| JPS5845912A (en) * | 1981-09-14 | 1983-03-17 | 日本板硝子株式会社 | Manufacture of fiber reinforced cylindrical cement product through press method |
-
1985
- 1985-10-09 JP JP60225094A patent/JPS6283096A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4840971A (en) * | 1971-10-01 | 1973-06-15 | ||
| JPS54102056A (en) * | 1978-01-27 | 1979-08-11 | Ebara Infilco Co Ltd | Process for high-speed treatment of waste water |
| JPS5839840U (en) * | 1981-08-17 | 1983-03-16 | ブラザー工業株式会社 | ultrasonic processing machine |
| JPS5845912A (en) * | 1981-09-14 | 1983-03-17 | 日本板硝子株式会社 | Manufacture of fiber reinforced cylindrical cement product through press method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6283096A (en) | 1987-04-16 |
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