JPH0634991B2 - Organic wastewater treatment equipment - Google Patents
Organic wastewater treatment equipmentInfo
- Publication number
- JPH0634991B2 JPH0634991B2 JP63059808A JP5980888A JPH0634991B2 JP H0634991 B2 JPH0634991 B2 JP H0634991B2 JP 63059808 A JP63059808 A JP 63059808A JP 5980888 A JP5980888 A JP 5980888A JP H0634991 B2 JPH0634991 B2 JP H0634991B2
- Authority
- JP
- Japan
- Prior art keywords
- treatment tank
- treatment
- filter
- organic wastewater
- rotary filter
- 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 - Fee Related
Links
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)
- Biological Treatment Of Waste Water (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、有機性廃水の処理装置に係り、特に好気性微
生物を無機性ロ床材に付着させて処理する固定床材の生
物処理装置に関する。Description: TECHNICAL FIELD The present invention relates to an organic wastewater treatment apparatus, and more particularly to a fixed-bed biological treatment apparatus for treating aerobic microorganisms by adhering them to an inorganic floor material. Regarding
有機性廃水を生物学的に処理する方法の一つとして、固
定床式の生物膜法がある。この方法は、処理槽内に充填
した粒状ロ床材の表面に微生物を付着させ、有機性廃水
を好気的条件下で接触させて浄化するものであり、通常
の生物処理、例えば活性汚泥処理のように処理槽の後段
で汚泥を分離する操作が不要であるため、活性汚泥の重
大なトラブル要因であるバルキング（汚泥沈降不良現
象）の発生がなく、維持管理の容易な処理装置として注
目されている。One of the methods for biologically treating organic wastewater is a fixed-bed biofilm method. In this method, microorganisms are attached to the surface of the granular bed material filled in the treatment tank, and organic wastewater is contacted under aerobic conditions to purify it, and ordinary biological treatment, for example, activated sludge treatment. Since there is no need to separate the sludge in the latter stage of the treatment tank like this, it does not cause bulking (a sludge sedimentation failure phenomenon), which is a major cause of trouble with activated sludge, and is attracting attention as a treatment device that is easy to maintain. ing.
しかし、この固定床式生物処理方法は、ロ床材に付着し
た微生物若しくは廃水中に含まれる微細なＳＳ成分の一
部が処理液とともに流出し、このまま直接放流できない
場合が多い。そのため、通常の固定床式生物処理を適用
した場合は、後段に凝集沈殿等のＳＳ除去装置を設けな
ければならない欠点があり、処理装置が全体として煩雑
化する原因となっている。However, in this fixed bed type biological treatment method, in many cases, microorganisms attached to the floor material or a part of fine SS component contained in the waste water flows out together with the treatment liquid and cannot be directly discharged as it is. Therefore, when a normal fixed bed type biological treatment is applied, there is a disadvantage that an SS removing device for coagulating sedimentation or the like must be provided in the subsequent stage, which causes the treating device to be complicated as a whole.
本発明は、前記の従来法の欠点を解消し、特に後段に凝
集沈殿等のＳＳ除去装置を設けることなく、処理液に含
まれるＳＳを効率よく除去できる処理装置を開発するこ
とを課題とする。An object of the present invention is to solve the above-mentioned drawbacks of the conventional method, and to develop a processing device capable of efficiently removing SS contained in a processing liquid without providing an SS removing device such as coagulation sedimentation in the subsequent stage. .
本発明は、ロ床材を充填した固定床式の生物処理槽の上
部に回転フィルターを浸漬した処理槽を設ける、生物処
理槽の上部から流出させた処理液を該回転フィルターに
通過させることによって、前記の課題を解決したもので
ある。The present invention provides a treatment tank in which a rotary filter is immersed in the upper part of a fixed-bed type biological treatment tank filled with a floor material, and a treatment liquid discharged from the upper portion of the biological treatment tank is passed through the rotary filter. The above-mentioned problems are solved.
すなわち、本発明による処理装置は、仕切板によってそ
の下部の一次処理槽と上部の二次処理槽とに仕切られ、
一次処理槽は好気性微生物を付着させた無機性ろ床材を
処理槽内に充填して含む、有機性廃水を好気性条件下で
処理する固定床式生物処理装置であり、その上部には一
次処理槽の曝気空気と逆洗水を二次処理槽を通らずに排
出する排出機構を有し、二次処理槽には回転機能を有す
るフィルター板を複数保持した回転フィルターが浸漬さ
れ、該フィルターを通過させて処理液を排出する排出機
構を有することを特徴とする。That is, the processing apparatus according to the present invention is partitioned by a partition plate into a lower primary processing tank and an upper secondary processing tank,
The primary treatment tank is a fixed-bed biological treatment device that treats organic wastewater under aerobic conditions, containing inorganic filter bed material with aerobic microorganisms attached to the inside of the treatment tank. It has a discharge mechanism for discharging the aerated air of the primary treatment tank and the backwash water without passing through the secondary treatment tank, and the secondary treatment tank is immersed with a rotary filter holding a plurality of filter plates having a rotary function. It is characterized by having a discharge mechanism for discharging the processing liquid through the filter.
本発明の処理装置において、ロ床材を充填した一次処理
槽には、回転フィルターを浸漬した二次処理槽への処理
液通過機構、例えば溢流堰を設けるのが好ましい。ま
た、ロ床材及び回転フィルターの洗浄機構を設けて、連
続処理による目詰まりを防止するため、洗浄するのが好
ましい。In the treatment apparatus of the present invention, the primary treatment tank filled with the floor material is preferably provided with a mechanism for passing a treatment liquid to the secondary treatment tank in which the rotary filter is immersed, for example, an overflow weir. Further, it is preferable to provide a cleaning mechanism for the flooring material and the rotary filter so as to prevent clogging due to continuous treatment.
本発明の処理装置に用いるフィルター板としては、メン
ブレン又は繊維膜等があげられる。Examples of the filter plate used in the treatment apparatus of the present invention include a membrane or a fiber membrane.
次に、図面に示した本発明の実施態様に基づいて本発明
を説明する。第１図は、本発明の処理装置の一実施態様
を示す系統図である。第１図に示した処理装置は、固定
床式廃水処理装置（以下、一次処理槽という）１と二次
処理槽２から成る。第１図において、廃水は、原水供給
ポンプ５から一次処理槽１に導入され、粒状ロ床材３に
付着した生物膜の作用で廃水に含まれるＢＯＤ成分が徐
々に分解・浄化される。一次処理槽１の底部にはブロワ
ー７から空気が吹き込まれ、槽内に好気性状態が保持さ
れる。Next, the present invention will be described based on the embodiments of the present invention shown in the drawings. FIG. 1 is a system diagram showing an embodiment of the processing apparatus of the present invention. The treatment apparatus shown in FIG. 1 comprises a fixed bed type wastewater treatment apparatus (hereinafter referred to as a primary treatment tank) 1 and a secondary treatment tank 2. In FIG. 1, the wastewater is introduced from the raw water supply pump 5 into the primary treatment tank 1, and the BOD component contained in the wastewater is gradually decomposed and purified by the action of the biofilm adhering to the granular bed material 3. Air is blown from the blower 7 to the bottom of the primary treatment tank 1 to maintain the aerobic state in the tank.
浄化された処理液は、一次処理槽１の上部に設置された
溢流堰から回転フィルター４が保持されている二次処理
槽２に流入するが、流入する処理液中には一次処理槽１
内のロ床材に付着していた生物膜若しくは原水中の微細
なＳＳ成分が一部含まれている。The purified treatment liquid flows from the overflow weir installed at the upper part of the primary treatment tank 1 into the secondary treatment tank 2 in which the rotary filter 4 is held.
Part of the fine SS component in the biofilm or raw water attached to the floor material inside is contained.
二次処理槽２には、回転機能を有するフィルター板（メ
ンブレン又は繊維膜等）を複数保持した回転フィルター
４が浸漬されており、一次処理槽１から流入した処理液
は、回転フィルター４を介してＳＳ成分を分離した後、
処理水吸込ポンプ６により放流される。A rotary filter 4 holding a plurality of filter plates (membranes or fiber membranes) having a rotating function is immersed in the secondary treatment tank 2, and the treatment liquid flowing from the primary treatment tank 1 passes through the rotary filter 4. After separating the SS component,
It is discharged by the treated water suction pump 6.
一次処理槽１の底部には、逆洗水配管８が設置され、更
に、二次処理槽２の上部には、フィルター洗浄配管９及
び逆洗水排出管１０が設置され、一定時間処理後に、そ
れぞれ充填材及びフィルターを洗浄する機構が設けられ
ている。A backwash water pipe 8 is installed on the bottom of the primary treatment tank 1, and a filter wash pipe 9 and a backwash water discharge pipe 10 are installed on the upper portion of the secondary treatment tank 2, and after treatment for a certain period of time, A mechanism is provided for cleaning the filler and the filter, respectively.
次に、実施例により本発明を説明するが、本発明はこれ
に限定されるものではない。Next, the present invention will be described with reference to examples, but the present invention is not limited thereto.
実施例１ ＣＯＤMn成分５８０mg/、ＢＯＤ成分７３０mg/、Ｓ
Ｓ成分２９０mg/を含むpH６．６の工場廃水を第１図
に示した処理装置で処理した。なお、この装置に用いた
回転フィルターの材質は、メンブレンフィルター（細孔
１０μ）である。Example 1 COD Mn component 580 mg /, BOD component 730 mg /, S
Industrial wastewater having a pH of 6.6 and containing 290 mg / S component was treated with the treatment apparatus shown in FIG. The material of the rotary filter used in this device is a membrane filter (pore size: 10 μm).
この処理装置で４０日間処理した結果を第２図に示す。
第２図から明らかなように、固定床式生物処理槽から流
出する処理液には、運転期間４０日間を通じて３０〜９
５mg/のＳＳ成分が含まれているの対し、回転フィル
ターを通過した処理液は全てＳＳ成分が２０mg/以下
となり、放流可能な水質となっていた。さらに、第２図
には特に記載しなかったが、上記のように回転フィルタ
ーでＳＳ成分を除去することにより、水質汚濁指標の一
つであるＢＯＤは全て１５mg/以下となっており、良
好な水質が得られた。The result of treatment for 40 days with this treatment apparatus is shown in FIG.
As is clear from FIG. 2, the treatment liquid flowing out from the fixed-bed biological treatment tank contains 30 to 9 throughout the operation period of 40 days.
In contrast to the 5 mg / SS component contained, all the treated liquids that passed through the rotary filter contained 20 mg / SS or less of the SS component and had a water quality capable of being discharged. Further, although not particularly shown in FIG. 2, by removing the SS component with the rotary filter as described above, BOD, which is one of the water pollution indicators, is 15 mg / or less, which is good. Water quality was obtained.
また、ＳＳによる回転フィルターの目詰まりは適宜洗浄
し、除去したが、洗浄頻度は運転期間を通じて１週間に
１回程度であった。Further, the clogging of the rotary filter due to SS was appropriately washed and removed, but the washing frequency was about once a week throughout the operation period.
本発明による、固定床式生物処理と回転フィルターによ
る処理が組み合わせて行わされる処理装置を用いること
により、従来必要であった凝集沈殿等の後処理が不要と
なり、かつ放流可能な良好な水質を安定して確保するこ
とができる。特に、本発明による廃水の処理装置は、一
体化構造であるため、設置スペースも少なくてすむとい
う利点を有する。By using the treatment device according to the present invention in which the fixed-bed biological treatment and the treatment with the rotary filter are combined, the post-treatment such as coagulation and sedimentation, which has been conventionally required, becomes unnecessary, and good water quality that can be discharged is obtained. It can be secured stably. In particular, the wastewater treatment apparatus according to the present invention has an advantage that it requires less installation space because it has an integrated structure.
第１図は本発明の一実施態様を示す廃水の処理装置の略
示系統図、第２図は本発明の実施例１における処理水の
ＳＳ成分の経時変化図である。 １……一次処理槽、２……二次処理槽、 ３……粒状ロ床材、４……回転フィルター、 ５……原水供給ポンプ、６……処理水吸込ポンプFIG. 1 is a schematic system diagram of a wastewater treatment apparatus showing an embodiment of the present invention, and FIG. 2 is a time-dependent change diagram of SS components of treated water in Example 1 of the present invention. 1 ... Primary treatment tank, 2 ... Secondary treatment tank, 3 ... Granular floor material, 4 ... Rotating filter, 5 ... Raw water supply pump, 6 ... Treated water suction pump
Claims (2)
部の二次処理槽とに仕切られ、一次処理槽は好気性微生
物を付着させた無機性ろ床材を処理槽内に充填して含
み、有機性廃水を好気性条件下で処理する固定床式生物
処理装置であり、その上部には一次処理槽の曝気空気と
逆洗水を二次処理槽を通らずに排出する排出機構を有
し、二次処理槽には回転機能を有するフィルター板を複
数保持した回転フィルターが浸漬され、該フィルターを
通過させて処理液を排出する排出機構を有することを特
徴とする有機性廃水の処理装置。1. A partition plate divides a primary treatment tank below the secondary treatment tank from an upper secondary treatment tank, and the primary treatment tank is filled with an inorganic filter bed material to which aerobic microorganisms are adhered. It is a fixed-bed biological treatment device that treats organic wastewater under aerobic conditions, and a discharge mechanism that discharges the aerated air from the primary treatment tank and the backwash water without passing through the secondary treatment tank is provided above it. A rotary filter having a plurality of filter plates having a rotary function is immersed in the secondary treatment tank, and the organic wastewater treatment has a discharge mechanism for discharging the treatment liquid through the filters. apparatus.
ィルターを浸漬した二次処理槽への処理液通過機構を有
し、回転フィルターを浸漬した二次処理槽には、回転フ
ィルターを洗浄する洗浄機構を有する請求項１記載の有
機性廃水の処理装置。2. A primary treatment tank filled with a floor material has a mechanism for passing a treatment liquid to a secondary treatment tank in which a rotary filter is immersed, and the secondary treatment tank in which the rotary filter is immersed has a rotary filter. The organic wastewater treatment device according to claim 1, further comprising a cleaning mechanism for cleaning the wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63059808A JPH0634991B2 (en) | 1988-03-14 | 1988-03-14 | Organic wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63059808A JPH0634991B2 (en) | 1988-03-14 | 1988-03-14 | Organic wastewater treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01231993A JPH01231993A (en) | 1989-09-18 |
| JPH0634991B2 true JPH0634991B2 (en) | 1994-05-11 |
Family
ID=13123913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63059808A Expired - Fee Related JPH0634991B2 (en) | 1988-03-14 | 1988-03-14 | Organic wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634991B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174681A (en) * | 1977-07-18 | 1979-11-20 | The Bendix Corporation | Two-group/simultaneous full injection conversion system for multiple cylinder engines |
| JPS62258797A (en) * | 1986-05-01 | 1987-11-11 | Kubota Ltd | Water treatment |
-
1988
- 1988-03-14 JP JP63059808A patent/JPH0634991B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01231993A (en) | 1989-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |