JPH04110198U - Anaerobic/aerobic activated sludge treatment equipment - Google Patents
Anaerobic/aerobic activated sludge treatment equipmentInfo
- Publication number
- JPH04110198U JPH04110198U JP1991012337U JP1233791U JPH04110198U JP H04110198 U JPH04110198 U JP H04110198U JP 1991012337 U JP1991012337 U JP 1991012337U JP 1233791 U JP1233791 U JP 1233791U JP H04110198 U JPH04110198 U JP H04110198U
- Authority
- JP
- Japan
- Prior art keywords
- tank
- anaerobic
- aerobic
- aeration
- activated 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 23
- 230000036284 oxygen consumption Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 239000011574 phosphorus Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000001546 nitrifying effect Effects 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical compound NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 description 2
- 229960001748 allylthiourea Drugs 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001079 digestive effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000257465 Echinoidea Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010865 sewage 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
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
(57)【要約】
【目的】 嫌気槽と好気槽からなる曝気槽の脱出を目的
とする前段部の嫌気状態を保持させることにより、高精
度の活性汚泥処理装置を得る。
【構成】 エアレーシヨンタンクの後段部の好気槽の曝
気をＤＯ濃度を嫌気〜微好気状態に制御し、循環する硝
化液内のＤＯを低くすることにより、脱窒を目的とした
前段部の嫌気槽の嫌気状態を保持する。
(57) [Summary] [Purpose] To obtain a highly accurate activated sludge treatment device by maintaining an anaerobic state in the front stage of an aeration tank consisting of an anaerobic tank and an aerobic tank for the purpose of escape. [Structure] By controlling the aeration in the aerobic tank at the rear stage of the aeration tank to keep the DO concentration from anaerobic to microaerobic, and by lowering the DO in the circulating nitrification liquid, this is the first stage for denitrification. Maintain the anaerobic condition in the anaerobic tank.
Description
【０００１】0001
本考案は水処理装置に係り、特に嫌気・好気活性汚泥処理装置における硝化液 循環の改良に関するものである。 The present invention relates to water treatment equipment, especially nitrification liquid in anaerobic/aerobic activated sludge treatment equipment. It is about improving circulation.
【０００２】0002
湖沼などの閉鎖性水域に処理水を放流する下水処理場では、水域の富栄養化防 止の目的のために、窒素、リンを除去することが強く求められるようになってき た。この状況に対応するために、従来の活性汚泥法の変法である嫌気・好気活性 汚泥法が注目されている。 At sewage treatment plants that discharge treated water into closed bodies of water such as lakes, measures are taken to prevent eutrophication of the bodies of water. There is a strong need to remove nitrogen and phosphorus for the purpose of Ta. In order to cope with this situation, we developed a modified method of the conventional activated sludge method, anaerobic/aerobic activation. The sludge method is attracting attention.
【０００３】 図２は従来の嫌気・好気活性汚泥処理装置を示すもので、１は流入水を処理す る嫌気槽、２ａは第１の好気槽であって、嫌気槽１の下流段に位置し該嫌気槽１ によって処理された被処理水を処理する。２ｂは第２の好気槽であって、第１の 好気槽２ａの下流段に位置し該第１の好気槽２ａによって処理された被処理水を 処理する。２ｃは第３の好気槽であって、第２の好気槽２ｂの下流段に位置し第 ２の好気槽２ｂによって処理された被処理水を処理する。３は最終沈殿池、４ａ は硝化液循環ポンプ、４ｂは返送汚泥ポンプ、４ｃは余剰汚泥ポンプ、５は各槽 において曝気を行うための散気管である。0003 Figure 2 shows a conventional anaerobic/aerobic activated sludge treatment equipment, and 1 shows a system for treating inflow water. The anaerobic tank 2a is a first aerobic tank and is located downstream of the anaerobic tank 1. The treated water is treated by 2b is the second aerobic tank, The water to be treated is located downstream of the aerobic tank 2a and is treated by the first aerobic tank 2a. Process. 2c is a third aerobic tank, which is located downstream of the second aerobic tank 2b. The water to be treated is treated by the aerobic tank 2b of No. 2. 3 is the final settling tank, 4a is the nitrification liquid circulation pump, 4b is the return sludge pump, 4c is the excess sludge pump, and 5 is each tank. This is an aeration pipe for aeration.
【０００４】 上記構成の装置による嫌気・好気活性汚泥法の標準的プロセスは図２に示すよ うに、生物反応槽（エアレーシヨオンタンク）の前段部の曝気を止め、容存酸素 （ＤＯ）の存在しない嫌気槽と、ＤＯの存在する好気槽にわける方式である。0004 The standard process of the anaerobic/aerobic activated sludge method using the device with the above configuration is shown in Figure 2. Sea urchin, aeration in the front part of the biological reaction tank (aeration tank) is stopped and the remaining oxygen is removed. This system is divided into an anaerobic tank without (DO) and an aerobic tank with DO.
【０００５】 この方法では、窒素は、好気槽の硝化液を嫌気槽に循環して、脱窒により窒素 ガスとして除去する。また、リンは、嫌気槽でリンの放出を起こさせ、好気槽で 活性汚泥内に放出したリンを取り込むことにより除去する。[0005] In this method, nitrogen is removed by denitrification by circulating the nitrifying liquid in the aerobic tank into the anaerobic tank. Removed as gas. In addition, phosphorus causes the release of phosphorus in the anaerobic tank and the release of phosphorus in the aerobic tank. The phosphorus released into activated sludge is removed by incorporating it into the activated sludge.
【０００６】[0006]
窒素を除去するには、好気槽で硝酸菌の硝化作用によって生成された硝酸性窒 素と有機物を、ＤＯが存在しない状態（嫌気）におくと、脱窒菌により硝酸性窒 素が窒素ガスになる現象を用いている。嫌気・好気活性汚泥法では好気槽の硝化 液を嫌気槽に循環する方法がとられている。しかし、この硝化液の中には、ＤＯ が多量に含まれているため、硝化液循環は、嫌気槽へ大量のＤＯを持ち込むこと になる。脱窒の為のＤＯ濃度は、実験的には、０．５ｍｇ／ｌ以下であれば可能 であるが、０ｍｇ／ｌであることが望ましいので、多量のＤＯ持ち込みは、窒素 除去に悪影響をもたらす。また、リンの除去にも悪影響を与えることも知られて いる。 To remove nitrogen, use nitrate nitrogen produced by the nitrifying action of nitrate bacteria in an aerobic tank. When oxygen and organic matter are left in the absence of DO (anaerobic), denitrifying bacteria produce nitrate nitrogen. It uses the phenomenon in which elementary atoms turn into nitrogen gas. In the anaerobic/aerobic activated sludge method, nitrification is carried out in an aerobic tank. A method is used in which the liquid is circulated to an anaerobic tank. However, this nitrifying solution contains DO Because it contains a large amount of DO, nitrifying solution circulation brings a large amount of DO into the anaerobic tank. become. Experimentally, the DO concentration for denitrification is 0.5 mg/l or less. However, it is desirable that the concentration be 0 mg/l, so bringing in a large amount of nitrogen Has a negative effect on removal. It is also known to have a negative effect on phosphorus removal. There is.
【０００７】 そこで、安定した処理水を得るには、嫌気槽にＤＯの持ち込みが少ない方法が 必要になってくる。[0007] Therefore, in order to obtain stable treated water, there is a method that brings less DO into the anaerobic tank. It becomes necessary.
【０００８】 本考案は上述の問題点に鑑みてなされたもので、その目的は、嫌気槽内へのＤ Ｏ持ち込みを少なくすることにより、高性能な嫌気・好気活性汚泥処理装置を提 供することである。[0008] This invention was made in view of the above-mentioned problems, and its purpose is to prevent D into the anaerobic tank. Providing high-performance anaerobic/aerobic activated sludge treatment equipment by reducing the amount of O carried in. It is to provide.
【０００９】[0009]
本考案は上記目的を達成するために、嫌気槽と好気槽に分割された曝気槽の最 終槽内の硝化を伴う酸素消費速度より硝化状態を把握する制御部と、この制御部 の制御指令に応じて前記曝気槽の曝気量を制御する曝気量制御部を備える。 In order to achieve the above objectives, this invention aims to improve the aeration tank, which is divided into an anaerobic tank and an aerobic tank. A control unit that grasps the nitrification state from the oxygen consumption rate accompanying nitrification in the final tank, and this control unit an aeration amount control section that controls an aeration amount of the aeration tank in accordance with a control command of the aeration tank.
【００１０】0010
エアレーシヨンタンクの最終槽内を、硝化を伴う酸素消費速度より硝化状態を 把握し、曝気量を制御することにより、嫌気或は微好気状態にし、脱窒を目的と したエアレーシヨンタンクの前段部の嫌気槽へのＤＯ持ち込みを防止し、窒素お よびリン除去の効率を向上させる。 The nitrification state in the final tank of the aeration tank is determined from the rate of oxygen consumption accompanying nitrification. By understanding this and controlling the amount of aeration, it is possible to create an anaerobic or microaerophilic state for the purpose of denitrification. This prevents DO from being carried into the anaerobic tank in the front stage of the aeration tank, and prevents nitrogen and and improve the efficiency of phosphorus removal.
【００１１】[0011]
以下に本考案の実施例を図１を参照しながら説明する。 An embodiment of the present invention will be described below with reference to FIG.
【００１２】 図１は本考案の実施例による嫌気・好気活性汚泥処理装置を示すもので、図２ のものと同一または相当部分には同一符号が付されている。0012 Figure 1 shows an anaerobic/aerobic activated sludge treatment device according to an embodiment of the present invention, and Figure 2 Parts that are the same as or corresponding to those in are given the same reference numerals.
【００１３】 本実施例においては、第１の嫌気槽１ａの下流段には第１の好気槽２ａが配設 され、第１の好気槽２ａの下流段には第２の好気槽２ｂが、第２の好気槽２ｂの 下流段には第２の嫌気槽１ｂが配置されている。第２の嫌気槽１ｂにはアリルチ オ尿素呼吸速度計（ＡＴＵ−ｒr計）６と呼吸速度計（ｒr計）７が設置されてい る。８はＡＴＵ−ｒr計６の測定信号とｒr計７の測定信号を入力とするコントロ ーラ、９は溶存酸素（ＤＯ）制御部でバルブ１０を制御する。ＡＴＵ−ｒr計６ はアリルチオ尿素を添加して硝化を抑えたときの呼吸速度を計る呼吸速度計であ り、Ｎｔｒ−ｒr＝（ｒr）−（ＡＴＵ−ｒr）となる。In this embodiment, a first aerobic tank 2a is provided downstream of the first anaerobic tank 1a, and a second aerobic tank is provided downstream of the first aerobic tank 2a. 2b, a second anaerobic tank 1b is arranged downstream of the second aerobic tank 2b. An allylthiourea respiration rate meter (ATU-r r meter) 6 and a respiration rate meter (r r meter) 7 are installed in the second anaerobic tank 1b. Reference numeral 8 denotes a controller which receives the measurement signal from the ATU-r r meter 6 and the measurement signal from the r r meter 7, and 9 denotes a dissolved oxygen (DO) control section which controls the valve 10. ATU-r r meter 6 is a respiration rate meter that measures the respiration rate when nitrification is suppressed by adding allylthiourea, and Ntr-r r =(r r )-(ATU-r r ).
【００１４】 上記構成の装置において、排水は、エアレーシヨンタンク内に投入されると、 排水内の有機物は第２の好気槽２ｂまででほとんど除去される（実験で検証済み ）。また、アンモニア性窒素は、第２の好気槽２ｂまでで、硝化菌により硝酸性 窒素にかわり（硝化作用）、この消化液が最終槽（嫌気〜微好気状態）を通り、 循環により前段の第１の嫌気槽１ａに戻され、脱窒により窒素が除去される。[0014] In the device with the above configuration, when the waste water is put into the aeration tank, Most of the organic matter in the wastewater is removed up to the second aerobic tank 2b (experimentally verified) ). In addition, ammonia nitrogen is converted to nitrate by nitrifying bacteria up to the second aerobic tank 2b. This digestive juice is converted into nitrogen (nitrification) and passes through the final tank (anaerobic to microaerobic state). It is returned to the first anaerobic tank 1a in the preceding stage by circulation, and nitrogen is removed by denitrification.
【００１５】 この方法によれば、循環する消化液は嫌気〜微好気状態を通るので、前段の脱 窒のための嫌気槽にはＤＯの持ち込みが少なくなる。[0015] According to this method, the circulating digestive fluid passes through an anaerobic to microaerobic state, so Less DO is brought into the anaerobic tank for nitrogen.
【００１６】 また、最終槽を嫌気槽にするため、好気状態におかれる時間が少なくなり、３ 番目の槽までで、アンモニア性窒素が完全に硝酸性窒素に変わっていない場合も 考えられるので、４槽目（最終槽）にＡＴＵ−ｒr計とｒr計を設置する。ＡＴＵ −ｒr計６とｒr計７から硝化に伴う酸素消費速度（Ｎｔｒ−ｒr）を求め、硝化 状態を推測し、硝化率が低いときはエアレーシヨンタンクの最終槽のＤＯ濃度を 上げるために曝気量を調整する。これにより、アンモニア性窒素の流出も防げる 。[0016] Furthermore, since the final tank is an anaerobic tank, the time spent in an aerobic state is shortened, and it is possible that ammonia nitrogen may not have been completely converted to nitrate nitrogen by the third tank. , install an ATU-r r meter and an r r meter in the fourth tank (final tank). Obtain the oxygen consumption rate (Ntr-r r ) associated with nitrification from ATU-r r total 6 and r r total 7, estimate the nitrification state, and when the nitrification rate is low, calculate the DO concentration in the final tank of the aeration tank. Adjust the aeration amount to increase the This also prevents ammonia nitrogen from flowing out.
【００１７】[0017]
本考案は以上の如くであって、嫌気好気活性汚泥法において、エアレーシヨン タンクの最終槽を、嫌気あるいは微好気状態にし、脱窒を目的とした前段部の嫌 気槽へのＤＯ持ち込みを防止するものであるから、以下のような効果が得られる 。 The present invention is as described above, and in the anaerobic and aerobic activated sludge method, the aeration The final tank of the tank is brought to an anaerobic or microaerobic state, and the front part is anaerobic for the purpose of denitrification. Since it prevents DO from being brought into the air tank, the following effects can be obtained. .
【００１８】 （１）嫌気槽へのＤＯ持ち込みが防止されるので、効率よく脱窒、脱リンがおき 、高度に処理された処理水が得られる。[0018] (1) Since DO is prevented from being carried into the anaerobic tank, denitrification and dephosphorization can occur efficiently. , highly treated treated water is obtained.
【００１９】 （２）ＡＴＵ−ｒr計、ｒr計によるＤＯのコントロールにより、硝化率が安定し ているので、安定した処理水が得られる。(2) Since the nitrification rate is stabilized by controlling DO using the ATU-r r meter and the r r meter, stable treated water can be obtained.
【００２０】 （３）新規施設はもちろん既存の施設にも使用できる。[0020] (3) Can be used not only for new facilities but also for existing facilities.
【図１】本考案の実施例による嫌気・好気活性汚泥処理
装置のブロック図。FIG. 1 is a block diagram of an anaerobic/aerobic activated sludge treatment apparatus according to an embodiment of the present invention.
【図２】従来の嫌気・好気活性汚泥処理装置のブロック
図。FIG. 2 is a block diagram of a conventional anaerobic/aerobic activated sludge treatment device.
１ａ…第１の嫌気槽、１ｂ…第２の嫌気槽、２ａ…第１
の好気槽、２ｂ…第２の好気槽、４ａ…硝化液循環ポン
プ、４ｂ…返送汚泥ポンプ、４ｃ…余剰汚泥ポンプ、５
…散気管、６…ＡＴＵ−ｒr計、７…ｒr計、８…制御
部、９…ＤＯ制御部、１０…バルブ。1a...first anaerobic tank, 1b...second anaerobic tank, 2a...first
aerobic tank, 2b...second aerobic tank, 4a...nitrification liquid circulation pump, 4b...return sludge pump, 4c...surplus sludge pump, 5
... air diffuser, 6... ATU-r r meter, 7... r r meter, 8... control section, 9... DO control section, 10... valve.
Claims (1)
終槽内の硝化を伴う酸素消費速度より硝化状態を把握す
る制御部と、この制御部の制御指令に応じて前記曝気槽
の曝気量を制御する曝気量制御部を備えていることを特
徴とする嫌気・好気活性汚泥処理装置。1. A control unit that grasps the nitrification state from the oxygen consumption rate accompanying nitrification in a final tank of an aeration tank divided into an anaerobic tank and an aerobic tank, and a control unit that controls the aeration tank according to a control command from the control unit. An anaerobic/aerobic activated sludge treatment device comprising an aeration amount control section that controls an aeration amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991012337U JP2543745Y2 (en) | 1991-03-07 | 1991-03-07 | Anaerobic / aerobic activated sludge treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991012337U JP2543745Y2 (en) | 1991-03-07 | 1991-03-07 | Anaerobic / aerobic activated sludge treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04110198U true JPH04110198U (en) | 1992-09-24 |
| JP2543745Y2 JP2543745Y2 (en) | 1997-08-13 |
Family
ID=31901027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991012337U Expired - Lifetime JP2543745Y2 (en) | 1991-03-07 | 1991-03-07 | Anaerobic / aerobic activated sludge treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2543745Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006239536A (en) * | 2005-03-02 | 2006-09-14 | Clion Co Ltd | Sewage treatment apparatus and method |
| JP2011104585A (en) * | 2009-10-20 | 2011-06-02 | Metawater Co Ltd | Wastewater treatment method and wastewater treatment apparatus |
| WO2013133444A1 (en) * | 2012-03-09 | 2013-09-12 | メタウォーター株式会社 | Wastewater treatment device, wastewater treatment method, wastewater treatment system, control device, control method, and program |
| WO2013133443A1 (en) * | 2012-03-09 | 2013-09-12 | メタウォーター株式会社 | Wastewater treatment device, wastewater treatment method, wastewater treatment system, control device, control method, and program |
| WO2015072207A1 (en) * | 2013-11-18 | 2015-05-21 | 株式会社東芝 | Organic waste water treatment apparatus, organic waste water treatment method, and control program for organic waste water treatment apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128498A (en) * | 1984-07-18 | 1986-02-08 | Shinko Fuaudoraa Kk | Simultaneous removal of nitrogen and phosphorus in organic waste water |
| JPS6451197A (en) * | 1987-08-24 | 1989-02-27 | Toshiba Corp | Biological nitration and denitrification plant of waste water |
-
1991
- 1991-03-07 JP JP1991012337U patent/JP2543745Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128498A (en) * | 1984-07-18 | 1986-02-08 | Shinko Fuaudoraa Kk | Simultaneous removal of nitrogen and phosphorus in organic waste water |
| JPS6451197A (en) * | 1987-08-24 | 1989-02-27 | Toshiba Corp | Biological nitration and denitrification plant of waste water |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006239536A (en) * | 2005-03-02 | 2006-09-14 | Clion Co Ltd | Sewage treatment apparatus and method |
| JP4578278B2 (en) * | 2005-03-02 | 2010-11-10 | クリオン株式会社 | Sewage treatment apparatus and treatment method |
| JP2011104585A (en) * | 2009-10-20 | 2011-06-02 | Metawater Co Ltd | Wastewater treatment method and wastewater treatment apparatus |
| WO2013133444A1 (en) * | 2012-03-09 | 2013-09-12 | メタウォーター株式会社 | Wastewater treatment device, wastewater treatment method, wastewater treatment system, control device, control method, and program |
| WO2013133443A1 (en) * | 2012-03-09 | 2013-09-12 | メタウォーター株式会社 | Wastewater treatment device, wastewater treatment method, wastewater treatment system, control device, control method, and program |
| CN104271515A (en) * | 2012-03-09 | 2015-01-07 | 美得华水务株式会社 | Wastewater treatment device, wastewater treatment method, wastewater treatment system, control device, control method, and program |
| JPWO2013133443A1 (en) * | 2012-03-09 | 2015-07-30 | メタウォーター株式会社 | Waste water treatment device, waste water treatment method, waste water treatment system, control device, control method, and program |
| US9302923B2 (en) | 2012-03-09 | 2016-04-05 | Metawater Co., Ltd. | Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control method |
| US9522832B2 (en) | 2012-03-09 | 2016-12-20 | Metawater Co., Ltd. | Wastewater treatment apparatus, wastewater treatment method, wastewater treatment system, control device, and control method |
| WO2015072207A1 (en) * | 2013-11-18 | 2015-05-21 | 株式会社東芝 | Organic waste water treatment apparatus, organic waste water treatment method, and control program for organic waste water treatment apparatus |
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|---|---|
| JP2543745Y2 (en) | 1997-08-13 |
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