JPS6397292A - Waste water treatment device - Google Patents
Waste water treatment deviceInfo
- Publication number
- JPS6397292A JPS6397292A JP61244883A JP24488386A JPS6397292A JP S6397292 A JPS6397292 A JP S6397292A JP 61244883 A JP61244883 A JP 61244883A JP 24488386 A JP24488386 A JP 24488386A JP S6397292 A JPS6397292 A JP S6397292A
- Authority
- JP
- Japan
- Prior art keywords
- treatment tank
- ultrafilter
- treated water
- pump
- sludge
- 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.)
- Pending
Links
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010802 sludge Substances 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims abstract description 4
- 239000008213 purified water Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 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)
- Activated Sludge Processes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、廃水を活性汚泥によって好気性処理する処理
槽を設けると共に、処理水を濃縮汚泥と浄化水とに分離
する限外ろ過器を設け、前記処理槽と限外ろ過器とにわ
たって、前記処理槽からの処理水を前記限外ろ過器に加
圧供給するポンプを介在した供給路と、前記限外ろ過器
からの濃縮汚泥を前記処理槽に返送する返送路を設けて
ある廃水処理装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a treatment tank for aerobically treating wastewater with activated sludge, and an ultrafilter for separating treated water into thickened sludge and purified water. a supply path that extends between the treatment tank and the ultrafilter and includes a pump that supplies treated water from the treatment tank to the ultrafilter under pressure; The present invention relates to a wastewater treatment device provided with a return path for returning water to a treatment tank.
従来、上記廃水処理装置では、活性汚泥に酸素を供給す
るために、第２図に示すように、処理槽＋１）に酸素含
有気体を吹き込む曝気装置（頂を設けてあるだけであっ
た。Conventionally, in order to supply oxygen to the activated sludge, the wastewater treatment apparatus has only been provided with an aeration device (top) for blowing oxygen-containing gas into the treatment tank +1, as shown in FIG.
しかし、返送１ｔ！％ ＋５）を介して限外ろ過器（２
）からの濃縮汚泥を、処理槽ｔ１）に返送して処理１
ｆ１＋における汚泥濃度を高めると、前記曝気装置４１
０）では、活性汚泥に必要な酸素量を、十分処理水中に
溶かして抱和状態にすることができず、廃水処理能力を
上げることができないという欠点があった。However, the return was 1 ton! % +5) through an ultrafilter (2
) is returned to the treatment tank t1) for treatment 1.
When the sludge concentration at f1+ is increased, the aeration device 41
0) had the disadvantage that the amount of oxygen required for activated sludge could not be sufficiently dissolved in the treated water to be hydrated, and the wastewater treatment capacity could not be increased.
本発明の目的は、処理槽における酸素溶解量を抱和状態
にできるようにする点にある。An object of the present invention is to make it possible to maintain the amount of oxygen dissolved in the treatment tank in a conjugated state.
本発明の廃水処理装置の特徴構成は、供給路でポンプと
限外ろ過器との間の処理水中に酸素含有気体を加圧供給
する供給装置を設けてあることにあり、その作用効果は
、次の通りである。The characteristic configuration of the wastewater treatment device of the present invention is that a supply device is provided in the supply path between the pump and the ultrafilter to supply oxygen-containing gas under pressure into the treated water, and its effects are as follows: It is as follows.
つまり、限外ろ過器に処理水を加圧供給するポンプの圧
力は、処理槽における水圧よりも高く、そのポンプと限
外ろ過器との間の処理水中に酸素含有気体を供給するた
めには、供給装置の加圧力をポンプの圧力以上にしなけ
ればならず、酸素含有気体を従来よりは処理水中に多く
溶解させられ、限外ろ過器からの濃縮汚泥が、限外ろ過
器よりも圧力の低い処理槽に返送される時には、酸素溶
解量が過抱和の状態になって処理槽に返送され、処理槽
における酸素溶解量を抱和状態にすることができる。In other words, the pressure of the pump that pressurizes and supplies treated water to the ultrafilter is higher than the water pressure in the treatment tank, and in order to supply oxygen-containing gas into the treated water between the pump and the ultrafilter, , the pressurizing pressure of the supply device must be higher than the pump pressure, and more oxygen-containing gas is dissolved in the treated water than before, and the thickened sludge from the ultrafilter has a higher pressure than the ultrafilter. When it is returned to a lower treatment tank, the amount of dissolved oxygen becomes a state of over-retention, and it is returned to the treatment tank, so that the amount of dissolved oxygen in the treatment tank can be brought into a state of hydration.
従って、処理槽における活性汚泥に必要な酸素量を、十
分溶かすことができるために、限外ろ過器によるｆｉｋ
Ｍ汚泥の返送撤を多くして、処理槽での汚泥濃度を高め
、その活性汚泥による廃水処理能力を上げることができ
るようになった。Therefore, in order to sufficiently dissolve the amount of oxygen required for activated sludge in the treatment tank, fik
By increasing the return and withdrawal of M sludge, it has become possible to increase the sludge concentration in the treatment tank and increase the wastewater treatment capacity of activated sludge.
その上、ポンプと限外ろ過器の間の処理水中に、供給装
置によって加圧供給された酸素含有気体の未溶解気泡は
、限外ろ過器におけるろ過膜近くで乱流を生じさせて、
ろ過膜に付着しやすい活性汚泥を剥離させ、そのために
、７ラツクス（Ｆｌｕｘ） を低下させずに限外ろ過
器の必要膜面積を小さくでき、結局、装置を小型化する
ことができた。Moreover, undissolved bubbles of oxygen-containing gas supplied under pressure by the supply device in the treated water between the pump and the ultrafilter cause turbulence near the filtration membrane in the ultrafilter.
Activated sludge, which tends to adhere to the filtration membrane, was peeled off, and as a result, the required membrane area of the ultrafilter could be reduced without reducing 7 lux (Flux), and as a result, the device could be downsized.
次に、本発明の実施例を、図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.
の処理槽ｍを設けると共に、処理水を濃縮汚泥と浄化水
とに分離する限外ろ過器（２）を設け、処理槽（１）と
限外ろ過器（２）とにわたって、処理槽（１）からの処
理水を限外ろ過器（２）に加圧供給するポンプ（３）を
介在した供給路（４）と、限外ろ過器（２）からの濃縮
汚泥を処理槽ｆ１）に返送する返送路（５）を設け、供
給路（４）でポンプ（３）と限外ろ過器との間の処理水
中に、コンプレッサー（５）によって空気を加圧供給す
る供給装置（７）を設けて廃水処理装置を構成しである
。A treatment tank (m) is provided, and an ultrafilter (2) for separating treated water into thickened sludge and purified water is provided. ) A supply line (4) with a pump (3) that supplies treated water under pressure to the ultrafilter (2) and returns the thickened sludge from the ultrafilter (2) to the treatment tank f1). A return path (5) is provided to supply air to the treated water between the pump (3) and the ultrafilter in the supply path (4), and a supply device (7) is provided to supply air under pressure using a compressor (5). This constitutes a wastewater treatment device.
備、余剰汚泥は、返送路（５）途中から引き抜くように
しである。In addition, excess sludge is drawn out from the middle of the return path (5).
そして、ポンプ（３）の圧力を、２〜１０匁 とすると
、コンプレッサー（５）の圧力は、ポンプ（３）の吐出
圧以上であれば良く、処理槽（１）における混合水中へ
の空気の溶解量は、従来の処理槽（１）で曝気するのに
比して２〜１１倍になる。If the pressure of the pump (3) is 2 to 10 monme, the pressure of the compressor (5) should be equal to or higher than the discharge pressure of the pump (3), and the pressure of the compressor (5) should be equal to or higher than the discharge pressure of the pump (3). The amount of dissolution is 2 to 11 times that of aeration in the conventional treatment tank (1).
ラリ−型等が使用できる。 A rally type etc. can be used.
前記処理槽（１）は、大気圧で処理する開放型の他に、
高圧で処理する密閉型であっても良い。The treatment tank (1) is an open type that processes at atmospheric pressure, and
It may be a closed type that processes at high pressure.
図面は本発明に係る廃水処理装置の実施例を示し、４ｔ
Ｊ１図は廃水処理装置の概略図、＠２図は、従来例の廃
水処理装置の概略図である。
（１）・・・・・・処理槽、（２）・・・・・・限外ろ
過器、（３）・・・・・・ポンプ、（４）・・・・・・
供給路、（５）・・・・・・返送路。
代理人 弁理士 北 村 修
手続補正書
１．事件の表示 α
幻昭和６１年 特 許 願 第２４４８８３号２、発明
の名称
廃水処理装置
３、補正をする者
事件との関係 特許出願人
住 所 大阪府大阪市浪速区敷津東１丁目２番４７号名
称 （１０５） 久保田鉄工株式会社４、代理人
５、補正の対象
６、補正の内容
（１）明細書中第２頁１６行、２０行、第３頁１７行の
「抱和状態」をｌｒ飽和状態」に訂正する。
（２） 同第２頁１７行の「ないという」を「ず、ま
た活性汚泥を限外ろ過器に通すと限外ろ過膜に活性汚泥
が付着し、透過流速（フラックス）が低下するＪに訂正
する。
（３）同２頁未行の「できるようにする点」の後に、「
と、限外ろ過膜のフラックスを増加して処理能力を高め
る点」を挿入する。
（４）同３頁１５行の「過飽和」を「過飽和」に訂正す
る。
（５） 同５頁１７行〜１８行の「チューブラ型・・
・・・・・・・キャピラリー型等」を「並びに、チュー
ブラ型等」に訂正する。The drawing shows an embodiment of the wastewater treatment device according to the present invention, and the 4t
Figure J1 is a schematic diagram of a wastewater treatment device, and Figure @2 is a schematic diagram of a conventional wastewater treatment device. (1)... Processing tank, (2)... Ultrafilter, (3)... Pump, (4)...
Supply route, (5)...Return route. Agent Patent Attorney Kitamura Amendment of Repair Procedures 1. Incident display α
Vision 1986 Patent Application No. 244883 2 Name of the invention Waste water treatment device 3 Relationship to the case of the person making the amendment Patent applicant address 1-2-47 Shikitsu Higashi, Naniwa-ku, Osaka City, Osaka Prefecture Name (105) Kubota Iron Works Co., Ltd. 4, Agent 5, Subject of amendment 6, Contents of amendment (1) "Inclusion state" on page 2, lines 16 and 20, and page 3, line 17 of the specification is saturated with lr. Corrected to ``state''. (2) "No" on page 2, line 17 of the same page is replaced with "No," and when activated sludge is passed through an ultrafilter, activated sludge adheres to the ultrafiltration membrane and the permeation flow rate (flux) decreases. (3) On the same page 2, after “Points to be made possible”, “
and the point of increasing the processing capacity by increasing the flux of the ultrafiltration membrane.'' (4) Correct "supersaturation" to "supersaturation" on page 3, line 15. (5) “Tubular type...” on page 5, lines 17-18.
......Correct "capillary type, etc." to "and tubular type, etc."
Claims (1)
設けると共に、処理水を濃縮汚泥と浄化水とに分離する
限外ろ過器（２）を設け、前記処理槽（１）と限外ろ過
器（２）とにわたつて、前記処理槽（１）からの処理水
を前記限外ろ過器（２）に加圧供給するポンプ（３）を
介在した供給路（４）と、前記限外ろ過器（２）からの
濃縮汚泥を前記処理槽（１）に返送する返送路（５）を
設けてある廃水処理装置であつて、前記供給路（４）で
前記ポンプ（３）と限外ろ過器（２）との間の処理水中
に酸素含有気体を加圧供給する供給装置（７）を設けて
ある廃水処理装置。A treatment tank (1) for aerobically treating wastewater with activated sludge is provided, and an ultrafilter (2) for separating treated water into thickened sludge and purified water is provided, and the treatment tank (1) and a supply path (4) interposed between the ultrafilter (2) and a pump (3) that supplies treated water from the treatment tank (1) under pressure to the ultrafilter (2); The wastewater treatment device is provided with a return path (5) for returning the concentrated sludge from the ultrafilter (2) to the treatment tank (1), and the supply path (4) is connected to the pump (3). A wastewater treatment device equipped with a supply device (7) that supplies oxygen-containing gas under pressure into the treated water between the ultrafilter (2) and the ultrafilter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61244883A JPS6397292A (en) | 1986-10-14 | 1986-10-14 | Waste water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61244883A JPS6397292A (en) | 1986-10-14 | 1986-10-14 | Waste water treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6397292A true JPS6397292A (en) | 1988-04-27 |
Family
ID=17125404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61244883A Pending JPS6397292A (en) | 1986-10-14 | 1986-10-14 | Waste water treatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6397292A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002170915A (en) * | 2000-11-30 | 2002-06-14 | Toyo Radiator Co Ltd | Water-cooled heat sink |
| US7254030B2 (en) | 2004-03-04 | 2007-08-07 | Mitsubishi Denki Kabushiki Kaisha | Heat sink |
| JP2009061455A (en) * | 2008-12-22 | 2009-03-26 | Asahi Kasei Chemicals Corp | Method for treating organic wastewater |
-
1986
- 1986-10-14 JP JP61244883A patent/JPS6397292A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002170915A (en) * | 2000-11-30 | 2002-06-14 | Toyo Radiator Co Ltd | Water-cooled heat sink |
| US7254030B2 (en) | 2004-03-04 | 2007-08-07 | Mitsubishi Denki Kabushiki Kaisha | Heat sink |
| US7522422B2 (en) | 2004-03-04 | 2009-04-21 | Mitsubishi Denki Kabushiki Kaisha | Heat sink |
| JP2009061455A (en) * | 2008-12-22 | 2009-03-26 | Asahi Kasei Chemicals Corp | Method for treating organic wastewater |
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