JP2018015760A - Deposit recovery device of waste water treatment system - Google Patents

Deposit recovery device of waste water treatment system Download PDF

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JP2018015760A
JP2018015760A JP2017144442A JP2017144442A JP2018015760A JP 2018015760 A JP2018015760 A JP 2018015760A JP 2017144442 A JP2017144442 A JP 2017144442A JP 2017144442 A JP2017144442 A JP 2017144442A JP 2018015760 A JP2018015760 A JP 2018015760A
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swash plate
sediment
outlet
treatment system
sewage treatment
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陳柏宏
bo-hong Chen
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Haochen Co Ltd
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Haochen Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1268—Membrane bioreactor systems
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a deposit recovery device of a waste water treatment system.SOLUTION: A deposit recovery device of a waste water treatment system of the present invention comprises a waste water treatment tank for providing a deposit outlet in a bottom wall and positioned in the corner of the bottom wall, a pipe connected to the deposit outlet and positioned on the outside of the treatment tank, a first cam plate for enclosing the deposit outlet and linked to the deposit outlet and a second cam plate for enclosing the first cam plate and linked to the first cam plate. The first cam plate is inclined toward the deposit outlet, and has first obliquity. The second cam plate is inclined toward the deposit outlet, and has second obliquity. The first obliquity is larger than the second obliquity. A deposit falls on the cam plate, and is attracted by gravitation by dead weight, and slidingly falls on the deposit outlet by a difference in the obliquity of the cam plates, and is discharged thereafter.SELECTED DRAWING: Figure 1

Description

本発明は、回収装置に関し、更に詳しくは、汚水処理システムの沈殿物回収装置に関する。   The present invention relates to a recovery device, and more particularly to a sediment recovery device of a sewage treatment system.

生物処理技術は汚水処理分野において使用される最も成熟した技術であり、様々な汚水及び工業処理に応用されている。所謂生物処理とは、微生物を利用して有機酸化物を分解させ、且つ微生物の生長に有利な環境を人工的に作り出し、微生物を大量繁殖させて、その有機酸化物分解能力を高める廃水処理方式である。   Biological treatment technology is the most mature technology used in the sewage treatment field and is applied to various sewage and industrial treatments. So-called biological treatment is a wastewater treatment method that uses microorganisms to decompose organic oxides, artificially creates an environment that is advantageous for the growth of microorganisms, and propagates microorganisms in large quantities to increase the ability to decompose organic oxides. It is.

膜分離活性汚泥法（Ｍｅｍｂｒａｎｅ ＢｉｏＲｅａｃｔｏｒ、 ＭＢＲ）は現在高度に発展した水処理技術である。ＭＢＲは膜分離技術及び生化学処理技術が結合された新しい汚水処理技術であり、微孔膜の濾過作用を利用し、嫌気性または好気性の沈殿物をリアクター中に滞留させ、沈殿物の濃度を高め、汚泥日齢を延ばし、高い固液分離能力により生分解効率を高め、排出基準またはより高い水のリサイクル基準をクリアさせる。
ＭＢＲは通常２級生物処理に応用されるが、生物処理及び薄膜による濾過という特性を有し、水質処理に関しては３級の処理性能を達成させる。汚水と微生物とが反応した後に発生するリアクターの底に溜まる沈殿物は、高い化学的酸素要求量（Ｃｈｅｍｉｃａｌ ｏｘｙｇｅｎ ｄｅｍａｎｄ、ＣＯＤ）を備える高濃度の微生物や細菌を含み、これを回収して再利用する。 The membrane separation activated sludge method (Membrane BioReactor, MBR) is a highly advanced water treatment technology. MBR is a new sewage treatment technology that combines membrane separation technology and biochemical treatment technology. By using the filtration action of microporous membrane, anaerobic or aerobic precipitate is retained in the reactor, and the concentration of the precipitate is reduced. Increase the age of sludge, increase the biodegradation efficiency with high solid-liquid separation ability, and clear the discharge standard or higher water recycling standard.
Although MBR is usually applied to secondary biological treatment, it has characteristics of biological treatment and filtration through a thin film, and achieves tertiary treatment performance for water quality treatment. The sediment that accumulates at the bottom of the reactor after the reaction between sewage and microorganisms contains high concentrations of microorganisms and bacteria with high chemical oxygen demand (COD), which are recovered and reused. To do.

しかしながら、現在の回収技術は適切とは言えず、改善の余地がある。そこで、本発明者は上記の欠点が改善可能と考え、鋭意検討を重ねた結果、合理的かつ効果的に課題を改善する本発明の提案に到った。   However, the current recovery technology is not appropriate and there is room for improvement. Therefore, the present inventor considered that the above-mentioned drawbacks can be improved, and as a result of intensive studies, the present inventor has arrived at the proposal of the present invention for improving the problem reasonably and effectively.

かかる従来の実情に鑑みて、本発明は、一般的な膜分離活性汚泥法（ＭＢＲ）の回収機能及び自浄機能を向上させる、汚水処理システムの沈殿物回収装置を提供することを目的とする。   In view of such conventional circumstances, an object of the present invention is to provide a sediment recovery device for a sewage treatment system that improves the recovery function and the self-cleaning function of a general membrane separation activated sludge method (MBR).

上述した課題を解決し、上記目的を達成するため、本発明に係る汚水処理システムの沈殿物回収装置の特徴は、汚水処理タンクの底壁に設けられ、底壁の隅に位置される沈殿物出口と、沈殿物出口に連結されると共に処理タンクの外側に位置されるパイプと、沈殿物出口を包囲させると共に沈殿物出口に連接される第一斜板と、第一斜板を包囲させると共に第一斜板に連接される第二斜板とを備える。
第一斜板は沈殿物出口に向けて傾斜されると共に第一斜度を有する。第二斜板は沈殿物出口に向けて傾斜されると共に第二斜度を有する。第一斜度は第二斜度より大きいことを特徴とする。 In order to solve the above-described problems and achieve the above object, the feature of the sediment recovery apparatus of the sewage treatment system according to the present invention is that the sediment is provided on the bottom wall of the sewage treatment tank and located at the corner of the bottom wall. An outlet, a pipe connected to the sediment outlet and located outside the processing tank, a first swash plate surrounding the sediment outlet and connected to the sediment outlet, and surrounding the first swash plate A second swash plate connected to the first swash plate.
The first swash plate is inclined toward the sediment outlet and has a first inclination. The second swash plate is inclined toward the sediment outlet and has a second inclination. The first inclination is larger than the second inclination.

汚水処理タンク中では、汚水は複数の薄膜濾過装置（ＭＢＲ）の反応作用を経た後、微孔膜濾過作用を利用し、嫌気性または好気性の沈殿物をリアクター中に滞留させ、沈殿物の濃度を高め、汚泥日齢を延ばすことにより、排出基準或いはより高い水のリサイクル基準をクリアさせる。汚水と微生物とが反応した後に発生するリアクターの底に溜まる沈殿物は、沈殿物出口、第一斜板、或いは第二斜板に排出される。
高い化学的酸素要求量（Ｃｈｅｍｉｃａｌ ｏｘｙｇｅｎ ｄｅｍａｎｄ、ＣＯＤ）を備える高濃度の微生物や細菌が回収されて再利用される。本発明はこの特性を利用し、物理学的な斜面、万有引力、及び自重の作用も加え、薄膜濾過装置（ＭＢＲ）の作用を経た後の沈殿物及び高い化学的酸素要求量（Ｃｈｅｍｉｃａｌ ｏｘｙｇｅｎ ｄｅｍａｎｄ、ＣＯＤ）を備える高濃度な微生物や細菌を回収して利用する。 In the sewage treatment tank, the sewage is subjected to the reaction action of a plurality of thin film filtration devices (MBR), and then the microporous membrane filtration action is used to retain the anaerobic or aerobic precipitate in the reactor. By increasing the concentration and increasing the sludge age, the emission standards or higher water recycling standards are cleared. The sediment that accumulates at the bottom of the reactor generated after the reaction between sewage and microorganisms is discharged to the sediment outlet, the first swash plate, or the second swash plate.
High concentrations of microorganisms and bacteria with high chemical oxygen demand (COD) are recovered and reused. The present invention takes advantage of this property, adding physical slopes, gravitation, and self-weight effects, precipitates and high chemical oxygen demand (Chemical Oxygen demand) after the action of a membrane filter (MBR). Collect and use highly concentrated microorganisms and bacteria with COD).

本発明の好ましい実施形態による回収装置を示す外観斜視図である。It is an external appearance perspective view which shows the collection | recovery apparatus by preferable embodiment of this invention. 本発明の好ましい実施形態による回収装置を示す上面図である。It is a top view which shows the collection | recovery apparatus by preferable embodiment of this invention. 本発明の好ましい実施形態の回収装置の３−３線に沿う断面図である。It is sectional drawing which follows the 3-3 line of the collection | recovery apparatus of preferable embodiment of this invention.

以下に図面を参照して、本発明を実施するための形態について、詳細に説明する。なお、本発明は、以下に説明する実施形態に限定されるものではない。   Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments described below.

以下に、図１〜６を参照しながら、本発明の汚水処理システムの沈殿物回収装置をさらに詳しく説明する。
本発明の汚水処理システムの沈殿物回収装置は、４つの側壁３１及び底壁３２で構成され、処理空間３３が形成される汚水処理タンク３０を備える。処理空間３３には薄膜濾過装置（図示せず）、曝気装置（図示せず）等の汚水処理設備が装設される。前述の構造はよくある一般的な膜分離活性汚泥法（ＭＢＲ）の装置であり、本発明の特徴ではないため、詳述を省く。 Below, the sediment collection | recovery apparatus of the sewage treatment system of this invention is demonstrated in more detail, referring FIGS.
The sediment collection device of the sewage treatment system of the present invention includes a sewage treatment tank 30 that is constituted by four side walls 31 and a bottom wall 32 and in which a treatment space 33 is formed. In the treatment space 33, sewage treatment equipment such as a thin-film filtration device (not shown) and an aeration device (not shown) is installed. The above-described structure is a common membrane separation activated sludge process (MBR) apparatus and is not a feature of the present invention, and therefore will not be described in detail.

なお、本発明の特徴について下述する。汚水処理タンク３０の底壁３２には沈殿物出口１１が設けられ、底壁３２の隅に位置される。パイプ１２は沈殿物出口１１に連結される。
第一斜板１３は底壁３２の内側に設置され、沈殿物出口１１を包囲させると共に沈殿物出口１１に連接される。第二斜板１４は底壁３２の内側に設置され、第一斜板１３を包囲させると共に第一斜板１３に連接され、第二斜板１４の他端は側壁３１に連接される。第一斜板１３は沈殿物出口１１に向けて傾斜され、且つ第一斜度を有する。第二斜板１４は沈殿物出口１１に向けて傾斜され、且つ第二斜度を有する。第一斜度は第二斜度より大きい。 The features of the present invention will be described below. The sediment outlet 11 is provided on the bottom wall 32 of the sewage treatment tank 30, and is located at the corner of the bottom wall 32. The pipe 12 is connected to the sediment outlet 11.
The first swash plate 13 is installed inside the bottom wall 32, surrounds the sediment outlet 11, and is connected to the sediment outlet 11. The second swash plate 14 is installed inside the bottom wall 32, surrounds the first swash plate 13 and is connected to the first swash plate 13, and the other end of the second swash plate 14 is connected to the side wall 31. The first swash plate 13 is inclined toward the sediment outlet 11 and has a first inclination. The second swash plate 14 is inclined toward the sediment outlet 11 and has a second inclination. The first slope is greater than the second slope.

好ましい実施態様において、第一斜板１３は複数の板体が連接されることにより構成され、第二斜板１４も複数の板体が連接されることにより構成される。第一接合部材１５は第一斜板１３と第二斜板１４との間に設置され、第一斜板１３及び第二斜板１４の接合に用いられる。本実施形態において、第一接合部材１５はＬ字形鋼であり、第一斜板１３及び第二斜板１４を接合させる以外、底壁３２も更に接合させる。
第二接合部材１６は第一斜板１３とパイプ１２との間に設置され、第一斜板１３及びパイプ１２の接合に用いられる。好ましい実施態様において、第二接合部材１６はＬ字形鋼であり、第一斜板１３及びパイプ１２を接合させる以外、底壁３２も更に接合させる。 In a preferred embodiment, the first swash plate 13 is configured by connecting a plurality of plates, and the second swash plate 14 is also configured by connecting a plurality of plates. The first joining member 15 is installed between the first swash plate 13 and the second swash plate 14 and is used for joining the first swash plate 13 and the second swash plate 14. In the present embodiment, the first joining member 15 is L-shaped steel, and the bottom wall 32 is further joined in addition to joining the first swash plate 13 and the second swash plate 14.
The second joining member 16 is installed between the first swash plate 13 and the pipe 12 and used for joining the first swash plate 13 and the pipe 12. In a preferred embodiment, the second joining member 16 is L-shaped steel, and in addition to joining the first swash plate 13 and the pipe 12, the bottom wall 32 is further joined.

汚水処理タンク３０中では、汚水は複数の薄膜濾過装置（ＭＢＲ）の反応作用を経た後、微孔膜濾過作用を利用し、嫌気性または好気性の沈殿物をリアクター中に滞留させ、沈殿物の濃度を高め、汚泥日齢を延ばすことにより、排出基準或いはより高い水のリサイクル基準をクリアさせる。
汚水と微生物とが反応した後に発生するリアクターの底に溜まる沈殿物は、沈殿物出口１１、第一斜板１３、或いは第二斜板１４に排出される。沈殿物出口１１に排出された沈殿物は、直接排出される。第一斜板１３に排出された沈殿物は、自重及び斜度の作用により、沈殿物出口１１に滑落し、その後に排出される。第二斜板１４に排出された沈殿物も同じ作用により斜度が小さい第二斜板１４から斜度の大きい第一斜板１３に進み、その後に沈殿物出口１１から排出される。 In the sewage treatment tank 30, the sewage passes through the reaction action of a plurality of thin film filtration devices (MBR) and then uses microporous membrane filtration action to retain anaerobic or aerobic precipitates in the reactor. By increasing the concentration of water and increasing the age of sludge, the emission standards or higher water recycling standards are cleared.
Precipitate accumulated at the bottom of the reactor generated after the reaction between sewage and microorganisms is discharged to the precipitate outlet 11, the first swash plate 13, or the second swash plate 14. The precipitate discharged to the precipitate outlet 11 is directly discharged. The sediment discharged to the first swash plate 13 slides down to the sediment outlet 11 due to its own weight and inclination, and is then discharged. The precipitate discharged to the second swash plate 14 also proceeds from the second swash plate 14 having a low inclination to the first swash plate 13 having a high inclination by the same action, and is then discharged from the precipitate outlet 11.

第一斜板１３の斜度が第二斜板１４の斜度より大きいため、沈殿物は自重の重力加速度のために徐々に加速し、滑落速度が増し、滑落動作もスムーズになる。最後に、沈殿物が第二斜板１４から第一斜板１３を経て沈殿物出口１１に滑落し、その後に沈殿物回収装置中から排出される。
汚水処理タンク３０の清掃を行う必要がないため、時間や労力を節約できる。高い化学的酸素要求量（Ｃｈｅｍｉｃａｌ ｏｘｙｇｅｎ ｄｅｍａｎｄ、ＣＯＤ）を備える高濃度の微生物や細菌が回収されて利用される。本発明はこの特性を利用し、物理学的な斜面、万有引力、及び自重の作用も加えて、薄膜濾過装置（ＭＢＲ）の作用を経た後の沈殿物及び高い化学的酸素要求量（Ｃｈｅｍｉｃａｌ ｏｘｙｇｅｎ ｄｅｍａｎｄ、ＣＯＤ）を備える高濃度の微生物や細菌が回収されて利用される。 Since the slope of the first swash plate 13 is larger than the slope of the second swash plate 14, the sediment is gradually accelerated due to gravity acceleration of its own weight, the sliding speed is increased, and the sliding action is also smooth. Finally, the precipitate slides from the second swash plate 14 through the first swash plate 13 to the precipitate outlet 11 and is then discharged from the precipitate collection device.
Since it is not necessary to clean the sewage treatment tank 30, time and labor can be saved. High concentrations of microorganisms and bacteria having a high chemical oxygen demand (COD) are recovered and used. The present invention takes advantage of this property, adding to the physical slope, universal gravitation, and the action of its own weight, the precipitate after the action of the membrane filter (MBR) and the high chemical oxygen demand (Chemical Oxygen demand). , COD) and high concentrations of microorganisms and bacteria are recovered and used.

従って、本明細書に開示された実施例は、本発明を限定するものではなく、説明するためのものであり、このような実施例によって本発明の思想と範囲が限定されるものではない。本発明の範囲は特許請求の範囲により解釈すべきであり、それと同等の範囲内にある全ての技術は、本発明の権利範囲に含まれるものと解釈すべきである。   Accordingly, the embodiments disclosed herein are for the purpose of explaining, not limiting the present invention, and the spirit and scope of the present invention are not limited by such embodiments. The scope of the present invention should be construed according to the claims, and all technologies within the equivalent scope should be construed as being included in the scope of the present invention.

１１ 沈殿物出口
１２ パイプ
１３ 第一斜板
１４ 第二斜板
１５ 第一接合部材
１６ 第二接合部材
３０ 汚水処理タンク
３１ 側壁
３２ 底壁
３３ 処理空間 DESCRIPTION OF SYMBOLS 11 Precipitate outlet 12 Pipe 13 1st swash plate 14 2nd swash plate 15 1st joining member 16 2nd joining member 30 Sewage treatment tank 31 Side wall 32 Bottom wall 33 Processing space

Claims (8)

複数の側壁及び底壁が結合されることにより構成され、且つ処理空間が形成され、前記底壁には沈殿物出口が設けられる汚水処理タンクと、
前記沈殿物出口を包囲させると共に前記沈殿物出口に連接される第一斜板と、
前記第一斜板を包囲させると共に前記第一斜板に連接される第二斜板と、を備え、
前記第一斜板は前記沈殿物出口に向けて傾斜されると共に第一斜度を有し、
前記第二斜板は前記沈殿物出口に向けて傾斜されると共に第二斜度を有することを特徴とする、
汚水処理システムの沈殿物回収装置。 A sewage treatment tank configured by combining a plurality of side walls and a bottom wall and forming a treatment space, wherein the bottom wall is provided with a sediment outlet;
A first swash plate surrounding the precipitate outlet and connected to the precipitate outlet;
A second swash plate surrounding the first swash plate and connected to the first swash plate,
The first swash plate is inclined toward the deposit outlet and has a first inclination;
The second swash plate is inclined toward the sediment outlet and has a second inclination.
Sewage treatment system sediment recovery equipment. 前記沈殿物出口に連結されるパイプを更に備えることを特徴とする、請求項１に記載の汚水処理システムの沈殿物回収装置。   The apparatus for collecting sediment in a sewage treatment system according to claim 1, further comprising a pipe connected to the sediment outlet. 前記第一斜度は第二斜度より大きいことを特徴とする、請求項１に記載の汚水処理システムの沈殿物回収装置。   The apparatus for collecting sediment in a sewage treatment system according to claim 1, wherein the first slope is greater than the second slope. 前記沈殿物出口は前記底壁的の隅箇所に位置されることを特徴とする、請求項１に記載の汚水処理システムの沈殿物回収装置。   The sediment recovery apparatus of the sewage treatment system according to claim 1, wherein the sediment outlet is located at a corner of the bottom wall. 前記第一斜板及び前記第二斜板に接合される第一接合部材を更に備えることを特徴とする、請求項１に記載の汚水処理システムの沈殿物回収装置。   The sediment recovery apparatus for a sewage treatment system according to claim 1, further comprising a first joining member joined to the first swash plate and the second swash plate. 前記第一接合部材はＬ字形鋼であり、前記底壁に更に接合されることを特徴とする、請求項５に記載の汚水処理システムの沈殿物回収装置。   The sediment recovery apparatus for a sewage treatment system according to claim 5, wherein the first joining member is L-shaped steel and is further joined to the bottom wall. 前記第二斜板及び前記底壁に接合される第二接合部材を更に備えることを特徴とする、請求項１に記載の汚水処理システムの沈殿物回収装置。   The sediment recovery apparatus for a sewage treatment system according to claim 1, further comprising a second joining member joined to the second swash plate and the bottom wall. 前記沈殿物出口に連結されるパイプを更に備え、前記第二接合部材は前記パイプに更に接合されることを特徴とする、請求項７に記載の汚水処理システムの沈殿物回収装置。   The sediment recovery device of a sewage treatment system according to claim 7, further comprising a pipe connected to the sediment outlet, wherein the second joining member is further joined to the pipe.
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