JP4428822B2 - Wastewater treatment equipment - Google Patents

Wastewater treatment equipment Download PDF

Info

Publication number
JP4428822B2
JP4428822B2 JP2000184732A JP2000184732A JP4428822B2 JP 4428822 B2 JP4428822 B2 JP 4428822B2 JP 2000184732 A JP2000184732 A JP 2000184732A JP 2000184732 A JP2000184732 A JP 2000184732A JP 4428822 B2 JP4428822 B2 JP 4428822B2
Authority
JP
Japan
Prior art keywords
air
waste water
blower
diffuser
pressure
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
Application number
JP2000184732A
Other languages
Japanese (ja)
Other versions
JP2002001343A (en
Inventor
明広 福本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2000184732A priority Critical patent/JP4428822B2/en
Priority to TW090112221A priority patent/TWI241985B/en
Priority to CN01118794A priority patent/CN1330046A/en
Priority to KR10-2001-0034439A priority patent/KR100400817B1/en
Publication of JP2002001343A publication Critical patent/JP2002001343A/en
Application granted granted Critical
Publication of JP4428822B2 publication Critical patent/JP4428822B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/202—Aeration by electrolytically produced oxygen bubbles
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/187—Machine fault alarms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46145—Fluid flow

Description

【０００１】
【発明の属する技術分野】
本発明は排水処理装置に関する。さらに詳しくは、排水を安全に処理することができる排水処理装置に関する。
【０００２】
【従来の技術】
リン化合物の処理装置は種々提案されているが、家庭排水については鉄の電解溶出法が知られている（特開平３−８９９９８号公報、Ｃ０２Ｆ ３／１２）。この技術は、排水中のリン酸イオンを鉄イオンと反応させ水不溶性の塩、たとえばＦｅＰＯ4やＦｅ（ＯＨ）x（ＰＯ4）yとして凝集沈殿させて除去しようとする技術であり、電解槽中に設置された鉄製の金属電極に通電して排水中に鉄イオンを溶出させるものである。そして、かかる電解溶出法を用いた浄化槽として、たとえば嫌気槽、好気槽、処理水槽および消毒槽からなり、該処理水槽の汚水を、リン酸反応する鉄イオンを溶出さる電解槽を介して、嫌気槽に循環するとともに、前記消毒槽を介して放流させるように構成されたものがある。
【０００３】
【発明が解決しようとする課題】
このように、リンを含む汚水を除去するために電解槽が設けられた浄化槽では、電解槽の電極の下部にばっ気のための散気管を設け、電流値に応じて散気管への風量を制御している。そして電極から発生する水素対策として、前記散気管より供給される空気量で水素濃度を下げている。しかし、送風機（ブロワー）の故障などにより散気管への送量が停止して、水素濃度が基準値をこえてしまうことが考えられる。
【０００４】
本発明は、叙上の事情に鑑み、安全に排水を処理することができる排水処理装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
本発明の排水処理装置は、排水の流入口と流出口を有する排水処理室と、排水中に浸漬される鉄および／またはアルミニウムを含む一対の金属電極と、該金属電極に通電するための電源制御盤と、排水中に空気を供給する空気ばっ気装置とを備える排水処理装置であって、
前記空気ばっ気装置が、
前記排水処理室の底中央に設置される多孔質の散気体である散気管と、
該散気管に圧縮空気を吸き込むための送風機と、
前記散気管と送風機とを接続する配管パイプと、
前記散気管に前記送風機からの空気を供給しているか否かを監視する風量検出手段とから構成され、
前記風量検出手段が前記散気管の空気の配管経路に直接設置され、
前記風量検出手段の信号線を散気用の配管経路を介して前記電源制御盤に接続され、
前記風量検出手段が前記送風機の吐出口に設けられた圧力センサであり、
該圧力センサにより、吐出される空気の吐出圧力を測定するステップと、
該吐出圧力が最小圧力以下または最大圧力以上であるか否かの判断をするステップと、
該吐出圧力が最小圧力以下または最大圧力以上であると判断される場合、警報手段を用いて知らせ、電解電流の電源を停止するステップ
とを含むことにより警報がなされる
ことを特徴とする。
【０００６】
【発明の実施の形態】
以下、添付図面に基づいて本発明の排水処理装置を説明する。
【０００７】
図１は本発明の一実施の形態にかかわる排水処理装置を示す説明図、図２は図１における排水処理装置の模式図、図３は送風機の風量と吐出圧力との関係を示す図、図４は本発明のフローチャートの一例、図５は他の実施の形態を示す模式図である。
【０００８】
本発明の排水処理装置は、たとえば合併浄化槽に用いられる。かかる合併浄化槽は、図１に示すように、第一嫌気ろ床槽Ａと、第ニ嫌気ろ床槽Ｂと、生物ろ過槽Ｃと、処理水槽Ｄと、消毒槽Ｅとからなり、前記第一嫌気ろ床槽Ａに流入した排水を各槽にて処理したのち、消毒槽Ｅから排出するようにされている。そして処理装置１が、前記処理水槽Ｄから送風機（ブロワー）Ｆにより揚水された処理水を第一嫌気ろ床槽Ａへ戻す排水処理装置１が循環経路Ｇに設置されている。
【０００９】
前記排水処理装置１は、図１〜２に示されるように排水の流入口２と流出口３を有する排水処理室４と、該処理室４内の排水中に少なくとも一部が浸漬するように配置されている一対の金属電極５と、該金属電極５に通電するための電源制御盤６と、前記排水処理室４内の排水中に空気を供給する空気ばっ気装置７を備えている。なお、前記電源制御盤６から金属電極５への送電線８はターミナルケース９を介して金属電極５に接続されている。
【００１０】
前記金属電極５は、鉄、鉄合金、アルミニウム、アルミニウム合金または鉄−アルミニウム合金などの鉄イオンおよび／またはアルミニウムイオン発生源から製作することができる。
【００１１】
前記一対の金属電極５のうち陽極（アノード）側の電極の表面は、有機物および無機物の酸化被膜が発生するが、陰極（カソード）側の電極は表面から水素ガスが発生している。かかる水素ガスにより、陰極側の電極の表面は洗浄され、酸化被膜が生じない。このため、陽極側の電極の表面に酸化被膜が発生して鉄イオンまたはアルミニウムイオンの溶出量が減少してきたばあいに、所定の時間間隔で極性を反転するのが好ましい。
【００１２】
前記空気ばっ気装置７は、金属電極５の洗浄、金属電極５から溶出したイオンへの酸素供給や前記水素濃度を低下させるために設置されており、排水処理室４の底中央に設置される多孔質の散気体である散気管１０または散気板と、該散気管１０に圧縮空気を吸き込むための送風機（ブロワー）１１と、前記散気管１０と送風機１１とは接続させる配管パイプ１２と、前記散気管１０へ送風機１１からの空気を供給しているか否かを監視する風量検出手段１３とから構成されている。該風量検出手段１３の信号線１４は前記電源制御盤６に接続されており、該風量検出手段１３により検出された風量信号は電源制御盤６に送信されたのち、該風量信号は演算処理されて所定の範囲にあるか否かが判断される。ついで所定の範囲外であれば、警報を発するまたは電源制御盤の電解電源を停止するなどの処置を行なうようにしている。
【００１３】
本実施の形態における風量検出手段１３は、送風機１１の吐出口に設けられている。これにより、送風機１１の故障および目詰まりによる風量低下などを検知することができる。かかる風量検出手段としては、直接的にまたは間接的に監視することができるものであれば、本発明においては、とくに限定されるものではないが、たとえば図３に示されるように、送風機の性能特性、すなわちばっ気に必要な送風機の最小風量Ｖ１および最大風量Ｖ２と送風機の最小吐出圧力Ｐ１および最大吐出圧力Ｐ２とのあいだの所定の関係を利用した圧力センサとすることができる。
【００１４】
本実施の形態では、図４に示されるように送風機の吐出口に設けられた圧力センサにより、吐出される空気の吐出圧力Ｐoを測定する（ステップＳ１）。ついで該吐出圧力Ｐoが最小圧力Ｐ１以下または最大圧力Ｐ２以上であるか否かの判断がなされる（ステップＳ２）。そして吐出圧力Ｐoが最小圧力Ｐ１以下または最大圧力Ｐ２以上であると判断される場合、警報ランプを点灯したのち、電解電流の電源を停止する。なお、本実施の形態では、警報ランプを点灯して知らせているが、本発明においては、これに限定されるものではなく、警報ブザーまたはネットを介してパソコンなどのディスプレイに表示するなどの警報手段を用いて知らせることもできる。
【００１５】
つぎに本発明の他の実施の形態を説明する。本実施の形態では、図５に示されるように風量検出手段１３３が前記散気管１０の空気の配管経路に直接設置されている。これにより、前記送風機１１から散気管１０までの配管パイプ１２の途中が壊れた場合にも検知することができる。なお、本実施の形態の場合、前記風量検出手段１３の信号線１４を散気用の配管経路（配管パイプ１２内）に通させて、電源制御盤６と接続させることによって、別途信号線のための配管を用いなくてもよくなり、経費を削減することができる。
【００１６】
なお、本実施の形態では、排水処理装置における排水処理室は前記第一嫌気ろ床槽に設置されているが、本発明においては、これに限定されるものではなく、たとえば生物ろ過槽、凝集沈殿槽または再ばっ気中間流量調整槽などに設置することもできる。
【００１７】
また本発明の排水処理装置は前述のように一般家庭排水にとくに有利に利用できる。したがって、単独で使用してもよいが、他の浄化システム、たとえば活性汚泥法、膜分離法、嫌気・好気循環法などと組合せて家庭用、集合住宅用の総合排水浄化システムとすることができる。また、大規模処理システム（し尿処理場）にも利用できる。
【００１８】
【発明の効果】
以上説明したとおり、本発明によれば、送風機の故障により散気が停止すると、警報を発して自動的に電解の電源を停止させることができる。したがって、排水処理の安全性を確保することができる。
【００１９】
また、警報手段を作動させることにより、いち早く故障箇所を判別し、処理することができる。
【図面の簡単な説明】
【図１】本発明の一実施の形態にかかわる排水処理装置を示す説明図である。
【図２】図１における排水処理装置の模式図である。
【図３】送風機の風量と吐出圧力との関係を示す図である。
【図４】本発明のフローチャートの一例である。
【図５】他の実施の形態を示す模式図である。
【符号の説明】
１ 排水処理装置
２ 流入口
３ 流出口
４ 排水処理室
５ 金属電極
６ 電源制御盤
７ 空気ばっ気装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wastewater treatment apparatus. More specifically, the present invention relates to a waste water treatment apparatus that can safely treat waste water.
[0002]
[Prior art]
Various treatment apparatuses for phosphorus compounds have been proposed, but an electrolysis method for iron is known for domestic wastewater (Japanese Patent Laid-Open No. 3-89998, C02F 3/12). This technique is a technique in which phosphate ions in waste water are reacted with iron ions to coagulate and remove them as water-insoluble salts such as FePO 4 and Fe (OH) x (PO 4 ) y. The iron metal electrode installed inside is energized to elute iron ions into the waste water. And, as a purification tank using such an electrolytic elution method, for example, an anaerobic tank, an aerobic tank, a treated water tank and a disinfecting tank, and the sewage in the treated water tank is passed through an electrolytic tank that elutes iron ions that react with phosphoric acid. Some are configured to circulate through the anaerobic tank and to be discharged through the disinfecting tank.
[0003]
[Problems to be solved by the invention]
Thus, in a septic tank provided with an electrolytic cell to remove sewage containing phosphorus, a diffuser tube for aeration is provided below the electrode of the electrolytic cell, and the air volume to the diffuser tube is adjusted according to the current value. I have control. As a countermeasure against hydrogen generated from the electrodes, the hydrogen concentration is lowered by the amount of air supplied from the diffuser. However, it is conceivable that the amount of hydrogen supplied to the air diffuser stops due to a failure of the blower (blower) and the hydrogen concentration exceeds the reference value.
[0004]
In view of the above circumstances, an object of the present invention is to provide a wastewater treatment apparatus that can safely treat wastewater.
[0005]
[Means for Solving the Problems]
The waste water treatment apparatus of the present invention includes a waste water treatment chamber having a waste water inlet and outlet, a pair of metal electrodes containing iron and / or aluminum immersed in the waste water, and a power source for energizing the metal electrodes A wastewater treatment device comprising a control panel and an air aeration device for supplying air into the wastewater,
The air aeration device is
An air diffuser pipe which is a porous air diffuser installed at the bottom center of the waste water treatment chamber;
A blower for sucking compressed air into the diffuser;
A piping pipe connecting the air diffuser and the blower;
An air volume detecting means for monitoring whether air from the blower is supplied to the air diffuser;
The air volume detecting means is directly installed in the air piping path of the diffuser pipe,
The signal line of the air volume detection means is connected to the power supply control panel via a piping path for air diffusion,
The air volume detection means is a pressure sensor provided at an outlet of the blower;
Measuring the discharge pressure of the discharged air with the pressure sensor;
Determining whether the discharge pressure is below a minimum pressure or above a maximum pressure;
When it is determined that the discharge pressure is lower than the minimum pressure or higher than the maximum pressure, the alarm means is used to notify and the power supply of the electrolytic current is stopped.
An alarm is given by including .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the waste water treatment apparatus of the present invention will be described with reference to the accompanying drawings.
[0007]
FIG. 1 is an explanatory view showing a waste water treatment apparatus according to an embodiment of the present invention, FIG. 2 is a schematic view of the waste water treatment apparatus in FIG. 1, and FIG. 3 is a diagram showing the relationship between the air volume of a blower and the discharge pressure. 4 is an example of a flowchart of the present invention, and FIG. 5 is a schematic diagram showing another embodiment.
[0008]
The waste water treatment apparatus of the present invention is used, for example, in a combined septic tank. As shown in FIG. 1, the combined septic tank includes a first anaerobic filter bed A, a second anaerobic filter bed B, a biological filter tank C, a treated water tank D, and a disinfection tank E. The waste water flowing into the anaerobic filter floor tank A is treated in each tank and then discharged from the disinfection tank E. And the waste water treatment apparatus 1 in which the processing apparatus 1 returns the treated water pumped up from the said treated water tank D by the air blower (blower) F to the 1st anaerobic filter floor tank A is installed in the circulation path G.
[0009]
As shown in FIGS. 1 and 2, the waste water treatment apparatus 1 has a waste water treatment chamber 4 having a waste water inlet 2 and an outlet 3, and at least a part of the waste water is immersed in the waste water in the treatment chamber 4. A pair of disposed metal electrodes 5, a power supply control panel 6 for energizing the metal electrodes 5, and an air aeration device 7 for supplying air into the wastewater in the wastewater treatment chamber 4 are provided. A power transmission line 8 from the power control panel 6 to the metal electrode 5 is connected to the metal electrode 5 via a terminal case 9.
[0010]
The metal electrode 5 can be fabricated from an iron ion and / or aluminum ion source such as iron, iron alloy, aluminum, aluminum alloy or iron-aluminum alloy.
[0011]
The surface of the anode (anode) side electrode of the pair of metal electrodes 5 generates an organic or inorganic oxide film, but the cathode (cathode) side electrode generates hydrogen gas from the surface. Such a hydrogen gas cleans the surface of the cathode-side electrode and does not produce an oxide film. For this reason, when an oxide film is generated on the surface of the anode-side electrode and the elution amount of iron ions or aluminum ions decreases, it is preferable to reverse the polarity at predetermined time intervals.
[0012]
The air aeration apparatus 7 is installed for cleaning the metal electrode 5, supplying oxygen to ions eluted from the metal electrode 5, and reducing the hydrogen concentration, and is installed at the bottom center of the waste water treatment chamber 4. A diffuser tube 10 or a diffuser plate, which is a porous diffused gas, a blower 11 for sucking compressed air into the diffuser tube 10, and a piping pipe 12 that connects the diffuser tube 10 and the blower 11. And air volume detecting means 13 for monitoring whether or not air from the blower 11 is supplied to the air diffuser 10. The signal line 14 of the air volume detection means 13 is connected to the power supply control panel 6, and after the air volume signal detected by the air volume detection means 13 is transmitted to the power supply control board 6, the air volume signal is processed. It is then determined whether it is within a predetermined range. Then, if it is out of the predetermined range, measures such as issuing an alarm or stopping the electrolytic power source of the power control panel are performed.
[0013]
The air volume detection means 13 in the present embodiment is provided at the discharge port of the blower 11. As a result, it is possible to detect a failure in the blower 11 and a decrease in air volume due to clogging. The air volume detecting means is not particularly limited in the present invention as long as it can be directly or indirectly monitored. For example, as shown in FIG. It is possible to provide a pressure sensor utilizing a predetermined relationship between the characteristics, that is, the minimum air volume V1 and the maximum air volume V2 of the blower necessary for aeration and the minimum discharge pressure P1 and the maximum discharge pressure P2 of the fan.
[0014]
In the present embodiment, as shown in FIG. 4, the discharge pressure Po of the discharged air is measured by a pressure sensor provided at the discharge port of the blower (step S1). Next, it is determined whether or not the discharge pressure Po is not more than the minimum pressure P1 or not less than the maximum pressure P2 (step S2). When it is determined that the discharge pressure Po is not more than the minimum pressure P1 or not less than the maximum pressure P2, the alarm lamp is turned on, and then the power source of the electrolytic current is stopped. In this embodiment, the alarm lamp is turned on to notify, but the present invention is not limited to this, and an alarm such as displaying on a display such as a personal computer via an alarm buzzer or the net. It can also be notified using means.
[0015]
Next, another embodiment of the present invention will be described. In the present embodiment, as shown in FIG. 5, the air volume detection means 133 is directly installed in the air piping path of the diffuser pipe 10. Thereby, even when the middle of the piping pipe 12 from the blower 11 to the diffuser pipe 10 is broken, it can be detected. In the case of the present embodiment, the signal line 14 of the air volume detection means 13 is passed through the aeration piping path (inside the piping pipe 12) and connected to the power supply control panel 6 to obtain a separate signal line. Therefore, it is not necessary to use a piping for the purpose, and the cost can be reduced.
[0016]
In the present embodiment, the waste water treatment chamber in the waste water treatment apparatus is installed in the first anaerobic filter bed tank. However, in the present invention, the invention is not limited to this. It can also be installed in a sedimentation tank or a re-aeration intermediate flow rate adjustment tank.
[0017]
The waste water treatment apparatus of the present invention can be used particularly advantageously for general household waste water as described above. Therefore, it may be used alone, but it can be combined with other purification systems such as activated sludge method, membrane separation method, anaerobic / aerobic circulation method, etc. to make a comprehensive wastewater purification system for households and collective housing. it can. It can also be used in large-scale processing systems (human waste treatment plants).
[0018]
【The invention's effect】
As described above, according to the present invention, when aeration is stopped due to a failure of a blower, an alarm can be issued and the electrolysis power supply can be automatically stopped. Therefore, the safety of wastewater treatment can be ensured.
[0019]
Also, by operating the alarm means, it is possible to quickly determine and process the failure location.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a waste water treatment apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the waste water treatment apparatus in FIG.
FIG. 3 is a diagram showing the relationship between the air volume of the blower and the discharge pressure.
FIG. 4 is an example of a flowchart of the present invention.
FIG. 5 is a schematic diagram showing another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Waste water treatment equipment 2 Inlet 3 Outlet 4 Waste water treatment room 5 Metal electrode 6 Power supply control panel 7 Air aeration apparatus

Claims (1)

排水の流入口と流出口を有する排水処理室と、排水中に浸漬される鉄および／またはアルミニウムを含む一対の金属電極と、該金属電極に通電するための電源制御盤と、排水中に空気を供給する空気ばっ気装置とを備える排水処理装置であって、
前記空気ばっ気装置が、
前記排水処理室の底中央に設置される多孔質の散気体である散気管と、
該散気管に圧縮空気を吸き込むための送風機と、
前記散気管と前記送風機とを接続する配管パイプと、
前記散気管に前記送風機からの空気を供給しているか否かを監視する風量検出手段とから構成され、
前記風量検出手段が前記散気管の空気の配管経路に直接設置され、
前記風量検出手段の信号線を散気用の配管経路を介して前記電源制御盤に接続され、
前記風量検出手段が前記送風機の吐出口に設けられた圧力センサであり、
該圧力センサにより、吐出される空気の吐出圧力を測定するステップと、
該吐出圧力が最小圧力以下または最大圧力以上であるか否かの判断をするステップと、
該吐出圧力が最小圧力以下または最大圧力以上であると判断される場合、警報手段を用いて知らせ、電解電流の電源を停止するステップ
とを含むことにより警報がなされる
ことを特徴とする排水処理装置。A waste water treatment chamber having a waste water inlet and outlet, a pair of metal electrodes containing iron and / or aluminum immersed in the waste water, a power control panel for energizing the metal electrodes, and air in the waste water A wastewater treatment device comprising an air aeration device for supplying
The air aeration device is
An air diffuser pipe which is a porous air diffuser installed at the bottom center of the waste water treatment chamber;
A blower for sucking compressed air into the diffuser;
A piping pipe connecting the diffuser pipe and the blower;
An air volume detecting means for monitoring whether air from the blower is supplied to the air diffuser;
The air volume detecting means is directly installed in the air piping path of the diffuser pipe,
The signal line of the air volume detection means is connected to the power supply control panel via a piping path for air diffusion,
The air volume detection means is a pressure sensor provided at an outlet of the blower;
Measuring the discharge pressure of the discharged air with the pressure sensor;
Determining whether the discharge pressure is below a minimum pressure or above a maximum pressure;
When it is determined that the discharge pressure is lower than the minimum pressure or higher than the maximum pressure, the alarm means is used to notify and the power supply of the electrolytic current is stopped.
Alarms by including
A wastewater treatment apparatus characterized by that .
JP2000184732A 2000-06-20 2000-06-20 Wastewater treatment equipment Expired - Fee Related JP4428822B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000184732A JP4428822B2 (en) 2000-06-20 2000-06-20 Wastewater treatment equipment
TW090112221A TWI241985B (en) 2000-06-20 2001-05-22 Waste water treating equipment
CN01118794A CN1330046A (en) 2000-06-20 2001-06-13 Drainage treatment device
KR10-2001-0034439A KR100400817B1 (en) 2000-06-20 2001-06-18 Apparatus for control drain water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000184732A JP4428822B2 (en) 2000-06-20 2000-06-20 Wastewater treatment equipment

Publications (2)

Publication Number Publication Date
JP2002001343A JP2002001343A (en) 2002-01-08
JP4428822B2 true JP4428822B2 (en) 2010-03-10

Family

ID=18685141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000184732A Expired - Fee Related JP4428822B2 (en) 2000-06-20 2000-06-20 Wastewater treatment equipment

Country Status (4)

Country Link
JP (1) JP4428822B2 (en)
KR (1) KR100400817B1 (en)
CN (1) CN1330046A (en)
TW (1) TWI241985B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100720578B1 (en) * 2004-12-30 2007-05-22 엘지전자 주식회사 Air Conditioner
JP5041383B2 (en) * 2010-03-25 2012-10-03 和美 下村 Air volume sensor device for septic tank management
JP6001295B2 (en) * 2012-03-28 2016-10-05 フジクリーン工業株式会社 Water treatment equipment
JP5985425B2 (en) * 2013-03-25 2016-09-06 株式会社クボタ Operation method of sewage treatment equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10165976A (en) * 1996-12-05 1998-06-23 Nissin Electric Co Ltd Sewage water treatment apparatus
TW474898B (en) * 1997-03-24 2002-02-01 Sanyo Electric Co Sewage treating device

Also Published As

Publication number Publication date
KR100400817B1 (en) 2003-10-08
KR20020000113A (en) 2002-01-04
TWI241985B (en) 2005-10-21
JP2002001343A (en) 2002-01-08
CN1330046A (en) 2002-01-09

Similar Documents

Publication Publication Date Title
JP4428822B2 (en) Wastewater treatment equipment
KR100253757B1 (en) Sewage treatment apparatus
JP3837200B2 (en) Waste water treatment equipment containing phosphate ions
JP4520054B2 (en) Installation method of sewage treatment equipment
JPH11267682A (en) Device of treating waste water containing phosphate ions
JP3795993B2 (en) Method and apparatus for treating phosphate ion-containing wastewater
JP3883645B2 (en) Dephosphorization processing equipment
JP3802185B2 (en) Sewage treatment equipment
JP4520053B2 (en) Sewage treatment equipment
JP3802184B2 (en) Sewage treatment equipment
JP3989059B2 (en) Waste water treatment equipment containing phosphate ions
JP3895860B2 (en) Sewage treatment equipment
JP3982881B2 (en) Treatment apparatus and treatment method for waste water containing phosphate ions
JP2000176454A (en) Treatment device and method for phosphate ion- containing water
CN210621814U (en) Central direct drinking water dual water supply system with automatic pipeline disinfection function
JPH10225691A (en) Treatment of phosphoric acid ions-containing waste water and treating device
JPH10225692A (en) Treatment of waste water containing phosphoric acid ion and treatment device
JPH10230271A (en) Method of and device for treating phosphate ion-containing waste water
JPH11267683A (en) Treating device of waste water containing phosphate ions
JPH11277090A (en) Drainage treatment apparatus for drainage containing phosphate ion
JPH11267684A (en) Device of treating wastewater containing phosphate ions
JPH1157725A (en) Device for treating phosphate ion-containing waste water
JP4026971B2 (en) Treatment method for wastewater containing phosphate ions
JPH10230274A (en) Treatment of phosphate ion-containing waste water and treating device
JPH10230272A (en) Apparatus for treating phosphate ion-containing waste water

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060825

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080701

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090908

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091027

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091117

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091215

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121225

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131225

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees