JPH11253977A - Waste water purifying apparatus - Google Patents
Waste water purifying apparatusInfo
- Publication number
- JPH11253977A JPH11253977A JP10075032A JP7503298A JPH11253977A JP H11253977 A JPH11253977 A JP H11253977A JP 10075032 A JP10075032 A JP 10075032A JP 7503298 A JP7503298 A JP 7503298A JP H11253977 A JPH11253977 A JP H11253977A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- water supply
- unit processing
- wastewater
- filter medium
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000000746 purification Methods 0.000 claims description 13
- 244000005700 microbiome Species 0.000 claims description 9
- 239000005416 organic matter Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000006228 supernatant 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
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、下水や食品加工排
水・給食センター排水・飲食店排水・喫茶店排水・生活
排水などの有機排水を浄化する排水の浄化装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for purifying organic wastewater such as sewage, food processing wastewater, food service center wastewater, restaurant wastewater, coffee shop wastewater and domestic wastewater.
【０００２】[0002]
【従来の技術】排水の浄化装置として、すでに出願され
た特願平９−８３４１６号明細書に記載されたものがあ
る。2. Description of the Related Art An apparatus for purifying wastewater is disclosed in Japanese Patent Application No. 9-83416 already filed.
【０００３】この排水の浄化装置は、処理槽内の上部に
は、半球形の椀状に形成され、かつその中心部にガイド
パイプを有する単位処理部を、その開口部を上に向けて
任意間隔を隔てて上下方向に複数段配置して形成される
ろ材ユニットを配設し、前記処理槽の下部のポンプピッ
ト内には、循環ポンプを配設し、前記ポンプピット内の
排水を前記循環ポンプによって最上段の前記単位処理部
に供給し、この単位処理部の内部に滞留した排水が溢流
してその表面を伝わって下段の前記単位処理部に落下
し、これを繰り返して最下段の前記単位処理部に達する
ように構成し、前記単位処理部の内部懸濁微生物とその
表面の微生物によって排水中の有機物を浄化するもので
ある。[0003] In this waste water purifying apparatus, a unit treatment section formed in a hemispherical bowl shape and having a guide pipe in the center thereof is provided at an upper portion in a treatment tank with an opening thereof directed upward. A filter medium unit formed by arranging a plurality of stages in the vertical direction at intervals is disposed, a circulation pump is disposed in a pump pit below the processing tank, and the drainage in the pump pit is circulated by the circulation pump. The water is supplied to the uppermost unit processing unit by a pump, and the wastewater retained inside the unit processing unit overflows, travels along its surface, falls to the lower unit processing unit, and repeats this to repeat the lowermost unit processing. It is configured to reach the unit processing section, and purifies organic matter in the wastewater by microorganisms suspended inside the unit processing section and microorganisms on the surface thereof.
【０００４】かかる排水の浄化装置においては、浄化効
率を向上させるために、通常、複数個のろ材ユニットが
横方向に並設されている。そして、循環ポンプから送水
される排水が流れる散水トイを、ろ材ユニットの上方に
設け、この散水トイのＶノッチから各ろ材ユニットの最
上段の単位処理部へ均等量の排水を落下させるようにし
ている。In such an apparatus for purifying wastewater, a plurality of filter medium units are usually arranged side by side in order to improve the purification efficiency. Then, a sprinkler toy through which drainage sent from the circulation pump flows is provided above the filter medium unit, and an equal amount of drainage falls from the V notch of the sprinkler to the uppermost unit processing unit of each filter medium unit. I have.
【０００５】[0005]
【発明が解決しようとする課題】上記従来の排水の浄化
装置においては、排水が散水トイを流れている間に、散
水トイのＶノッチに微細なゴミやスライムが付着して、
各ろ材ユニットに均等に排水が送水できなくなったり、
ろ材ユニットの一部に排水が全く送水されなくなったり
することがあり、有機物の浄化効率が悪くなったり、嫌
気化して悪臭を発したりするという欠点があった。In the above-mentioned conventional waste water purifying apparatus, while the waste water is flowing through the watering toy, fine dust and slime adhere to the V notch of the watering toy,
Drainage cannot be evenly supplied to each filter media unit,
In some cases, wastewater may not be sent to a part of the filter medium unit at all, resulting in poor purification efficiency of organic substances and anaerobic emission of foul odor.
【０００６】そこで、本発明の目的とするところは、椀
状の単位処理部からなる複数のろ材ユニットに常時均等
に排水を流入させるようにすることにより、浄化効率の
向上を図ることができる排水の浄化装置を提供するもの
である。Therefore, an object of the present invention is to improve the purification efficiency by always allowing the wastewater to flow uniformly into a plurality of filter medium units each comprising a bowl-shaped unit processing unit. And a purifying device.
【０００７】[0007]
【課題を解決するための手段】本発明では、処理槽内の
上部には、半球形の椀状に形成され、かつその中心部に
ガイドパイプを有する単位処理部を、その開口部を上に
向けて任意間隔を隔てて上下方向に複数段配置して形成
されるろ材ユニットを配設し、前記処理槽の下部のポン
プピット内には、循環ポンプを配設し、前記ポンプピッ
ト内の排水を前記循環ポンプによって最上段の前記単位
処理部に供給し、この単位処理部の内部に滞留した排水
が溢流してその表面を伝わって下段の前記単位処理部に
落下し、これを繰り返して最下段の前記単位処理部に達
するように構成し、前記単位処理部の内部懸濁微生物と
その表面の微生物によって排水中の有機物を浄化する排
水の浄化装置において、前記ろ材ユニットが複数個並設
され、前記循環ポンプに接続された送水主管から複数の
送水枝管が分岐され、これら送水枝管が前記ろ材ユニッ
ト毎に、それぞれ前記単位処理部の前記ガイドパイプを
貫通するとともに、その先端部が最上段の前記単位処理
部の内側に位置するように配設される。According to the present invention, a unit processing section which is formed in a hemispherical bowl shape and has a guide pipe in the center thereof is provided at the upper part in the processing tank, and the opening part thereof is placed upward. A filter medium unit formed by arranging a plurality of stages in the vertical direction at arbitrary intervals is provided, a circulation pump is provided in a pump pit below the processing tank, and a drainage in the pump pit is provided. Is supplied to the uppermost unit processing unit by the circulating pump, and the wastewater retained inside the unit processing unit overflows, travels along the surface thereof, falls to the lower unit processing unit, and repeats this. In the wastewater purification device configured to reach the lower unit processing unit and purify organic matter in the wastewater by microorganisms suspended in the unit processing unit and microorganisms on the surface of the unit processing unit, a plurality of the filter medium units are arranged in parallel. , The circulation port A plurality of water supply branch pipes are branched from the water supply main pipe connected to the filter, and these water supply branch pipes pass through the guide pipes of the unit processing section for each of the filter medium units, and the distal end thereof is the uppermost one. It is arranged so as to be located inside the unit processing unit.
【０００８】このように構成された排水の浄化装置にお
いては、循環ポンプに接続された送水主管から分岐した
各送水枝管を各ろ材ユニットにそれぞれ貫通させるとと
もに、その先端部を最上段の単位処理部の内側に配置す
ることによって、各ろ材ユニットに対して常に均等に排
水を送水できるので、浄化効率を向上させることができ
る。In the waste water purifying apparatus thus constructed, each water supply branch pipe branched from the water supply main pipe connected to the circulating pump is passed through each filter medium unit, and the tip of the water supply branch pipe is connected to the uppermost unit treatment unit. By arranging the wastewater inside the section, the wastewater can always be evenly supplied to each filter medium unit, so that the purification efficiency can be improved.
【０００９】また、前記各送水枝管には管路を閉鎖可能
な仕切弁がそれぞれ設けられることが好ましい。このよ
うに構成することにより、万一、一部の送水枝管がスラ
イムによって閉塞しても、それ以外の送水枝管を仕切弁
で閉鎖することにより、閉塞した送水枝管の洗浄を行う
ことができる。It is preferable that each of the water supply branch pipes is provided with a gate valve capable of closing a pipe. With this configuration, even if some of the water supply branch pipes are blocked by the slime, the other water supply branch pipes are closed by the gate valve, thereby cleaning the closed water supply branch pipes. Can be.
【００１０】[0010]
【発明の実施の形態】図１および図２は本発明の排水の
浄化装置の実施の形態の一例を示したものである。１は
処理槽で、その下部には、ホッパー状に形成されたポン
プピット４が設けられる。２ａ〜２ｎはろ材ユニット
で、複数の単位処理部１２ａ〜１２ｎで形成されるとと
もに、処理する排水量や濃度によって横方向に複数並設
される。1 and 2 show an example of an embodiment of a waste water purifying apparatus according to the present invention. Reference numeral 1 denotes a processing tank, and a pump pit 4 formed in a hopper shape is provided below the processing tank. Reference numerals 2a to 2n denote filter medium units, which are formed by a plurality of unit processing units 12a to 12n, and are arranged in a plurality in the horizontal direction depending on the amount and concentration of wastewater to be treated.
【００１１】単位処理部１２ａは、図２に示すように、
たとえばポリプロピレン樹脂を使用して、半球形の椀状
をなし、内部中心部に中空のガイドパイプ１３ａを有す
る。なお、単位処理部１２ｂ〜１２ｎも単位処理部１２
ａと全く同様に形成され、ガイドパイプ１３ｂ〜１３ｎ
を有する。単位処理部１２ａ〜１２ｎは開口部を上に向
けて任意間隔を隔てて配設される。なお、ろ材ユニット
２ｂ〜２ｎもろ材ユニット２ａと全く同様に形成され
る。The unit processing unit 12a, as shown in FIG.
For example, a hemispherical bowl-like shape is formed using polypropylene resin, and a hollow guide pipe 13a is provided in the center of the inside. Note that the unit processing units 12b to 12n are also unit processing units 12b to 12n.
The guide pipes 13b to 13n are formed in exactly the same
Having. The unit processing units 12a to 12n are arranged at arbitrary intervals with the opening facing upward. The filter medium units 2b to 2n are formed in exactly the same manner as the filter medium unit 2a.
【００１２】また、ポンプピット４には、循環ポンプ６
が配設される。循環ポンプ６には流量調整弁７を介して
送水主管８が接続される。送水主管８には、ろ材ユニッ
ト２ａ〜２ｎに対応する間隔で、他端を上方に向けて、
送水枝管３ａ〜３ｎが配設されるとともに、この送水枝
管３ａ〜３ｎには、その管路を閉鎖可能な仕切弁９ａ〜
９ｎがそれぞれ配設される。送水枝管３ａ〜３ｎはろ材
ユニット２ａ〜２ｎ毎に、それぞれ単位処理部１２ａ〜
１２ｎのガイドパイプ１３ａ〜１３ｎを貫通しており、
これにより、単位処理部１２ａ〜１２ｎが送水枝管３ａ
〜３ｎに固定される。The pump pit 4 has a circulation pump 6
Is arranged. A main water supply pipe 8 is connected to the circulation pump 6 via a flow control valve 7. The other end of the water main pipe 8 is directed upward at intervals corresponding to the filter medium units 2a to 2n.
The water supply branch pipes 3a to 3n are provided, and the water supply branch pipes 3a to 3n are provided with gate valves 9a to 9c for closing the pipes.
9n are provided respectively. The water supply branch pipes 3a to 3n are respectively provided for the unit processing units 12a to 12n for each filter medium unit 2a to 2n.
Penetrates 12n guide pipes 13a to 13n,
As a result, the unit processing units 12a to 12n
Ｎ3n.
【００１３】また、送水枝管３ａ〜３ｎの先端部はろ材
ユニット２ａ〜２ｎ毎に、それぞれの最上段の単位処理
部２ａの内側に位置するように配設されており、送水枝
管３ａ〜３ｎの先端部から落下する排水がそれぞれの最
上段の単位処理部２ａに確実に注がれるようになってい
る。なお、５は処理槽１で処理された処理水が上澄液と
して流れ出す流出パイプである。The distal end of each of the water supply branch pipes 3a to 3n is disposed so as to be located inside the uppermost unit processing section 2a for each of the filter medium units 2a to 2n. The drainage falling from the tip of 3n is surely poured into the uppermost unit processing section 2a. Reference numeral 5 denotes an outflow pipe from which the treated water treated in the treatment tank 1 flows out as a supernatant.
【００１４】次に、上記浄化装置の動作を説明する。ポ
ンプピット４には、常時、流出パイプ５の底部レベルま
で排水が貯留されており、循環ポンプ６は連続運転して
いる。ポンプピット４内の排水は、循環ポンプ６により
流量調整弁７を介して、送水主管８に送られ、仕切弁９
ａ〜９ｎを介して、それぞれ送水枝管３ａ〜３ｎを通
り、ろ材ユニット２ａ〜２ｎの各最上段の単位処理部１
２ａに注ぎ込まれる。Next, the operation of the purification device will be described. In the pump pit 4, drainage is always stored up to the bottom level of the outflow pipe 5, and the circulation pump 6 is continuously operated. The drainage in the pump pit 4 is sent to the main water supply pipe 8 by the circulation pump 6 via the flow control valve 7,
a through 9n, through the water supply branch pipes 3a through 3n, respectively, and the uppermost unit processing unit 1 of each of the filter medium units 2a through 2n.
2a is poured.
【００１５】各単位処理部１２ａから溢流した排水は、
単位処理部１２ａの縁から矢印で示したように表面を伝
わって流れ、送水枝管３ａ〜３ｎの外表面をそれぞれ伝
わって各次段の単位処理部１２ｂに落下する。以下同様
にして、排水は各最下段の単位処理部１２ｎまで達し、
ポンプピット４に導かれる。The wastewater overflowing from each unit processing section 12a is:
As shown by an arrow, the water flows along the surface from the edge of the unit processing unit 12a, and flows down the outer surface of each of the water supply branch pipes 3a to 3n to drop to the next unit processing unit 12b. In the same manner, the waste water reaches each lowermost unit processing unit 12n,
It is led to the pump pit 4.
【００１６】上記過程において、ろ材ユニット２ａを例
にとると、単位処理部１２ａ〜１２ｎの表面には徐々に
微生物膜が形成され、排水が微生物膜表面を伝う間に排
水中の有機物は微生物膜の微生物により吸着浄化され
る。In the above process, taking the filter medium unit 2a as an example, a microbial membrane is gradually formed on the surfaces of the unit treatment sections 12a to 12n, and the organic matter in the wastewater is separated from the microbial membrane while the wastewater travels on the surface of the microbial membrane. Adsorbed and purified by microorganisms.
【００１７】さらに、単位処理部１２ｂ内部では、上部
の単位処理部１２ａから剥離した微生物が滞留する排水
と混合され、活性汚泥法のように有機物と微生物の接触
が効率よく行われ、排水中の有機物の浄化が行われる。
このような有機物の浄化が単位処理部１２ｃ〜１２ｎに
おいても表面と内部で行われる。なお、同様の浄化がろ
材ユニット２ｂ〜２ｎにおいても行われる。Furthermore, inside the unit processing section 12b, microorganisms separated from the upper unit processing section 12a are mixed with the retained waste water, and the organic matter and the microorganism are efficiently contacted as in the activated sludge method. Purification of organic matter is performed.
Such purification of organic substances is performed on the surface and inside also in the unit processing units 12c to 12n. Note that the same purification is also performed in the filter medium units 2b to 2n.
【００１８】また、ろ材ユニット２ａ〜２ｎの各最上段
の単位処理部１２ａに送水される排水は、送水主管８か
ら分岐した送水枝管３ａ〜３ｎでそれぞれ送水されるの
で、ろ材ユニット２ａ〜２ｎに対して常に均等な流量で
送水される。したがって、排水はろ材ユニット２ａ〜２
ｎの表面全体を均等に溢流するので、微生物との接触が
効率よく行われる。The wastewater sent to the uppermost unit processing section 12a of each of the filter medium units 2a to 2n is sent to the water supply branch pipes 3a to 3n branched from the water supply main pipe 8, respectively. Is always supplied at a uniform flow rate. Therefore, the drainage is supplied to the filter medium units 2a-2
Since the entire surface of n is uniformly overflowed, the contact with microorganisms is performed efficiently.
【００１９】また、もし、送水枝管３ａ〜３ｎの一部で
ある送水枝管３ａがスライムで閉塞したとしても、正常
な送水枝管３ｂ〜３ｎに接続された仕切弁９ｂ〜９ｎを
閉じ、閉塞した送水枝管３ａ〜３ｎに通常以上の排水を
送水することによって、閉塞した送水枝管３ａ内の洗浄
を行うことができる。Even if the water supply branch pipe 3a, which is a part of the water supply branch pipes 3a to 3n, is blocked by slime, the gate valves 9b to 9n connected to the normal water supply branch pipes 3b to 3n are closed. By sending more water than usual to the closed water supply branch pipes 3a to 3n, the inside of the closed water supply branch pipe 3a can be washed.
【００２０】なお、浄化された排水は、ポンプピット４
に一旦貯留され、処理水として流出パイプ５から流出
し、沈殿槽などの水槽へ導かれる。The purified waste water is supplied to the pump pit 4
Once, flows out of the outflow pipe 5 as treated water, and is guided to a water tank such as a sedimentation tank.
【００２１】[0021]
【発明の効果】以上のように本発明によれば、ポンプピ
ット内の排水が、送水枝管の先端部から各ろ材ユニット
の最上段の単位処理部へ、常に均等かつ確実に送水され
るので、浄化装置の浄化効率を向上させることができ
る。また、各ろ材ユニットの単位処理部はそれぞれの送
水枝管がガイドパイプを貫通することにより、送水枝管
に固定されるので、単位処理部を固定するための支持部
材として兼用することができる。As described above, according to the present invention, the drainage in the pump pit is always uniformly and reliably sent from the tip of the water supply branch pipe to the uppermost unit processing section of each filter medium unit. In addition, the purification efficiency of the purification device can be improved. Further, since the unit processing section of each filter medium unit is fixed to the water supply branch pipe by the respective water supply branch pipe penetrating the guide pipe, the unit processing section can also be used as a support member for fixing the unit processing section.
【００２２】さらに、送水枝管に仕切弁を設けた場合に
は、万一、一部の送水枝管がスライムによって閉塞して
も、それ以外の送水枝管を仕切弁で閉鎖することによ
り、閉塞した送水枝管の洗浄を行うことができる。Further, in the case where a gate valve is provided in the water supply branch pipe, even if some of the water supply branch pipes are blocked by slime, the other water supply branch pipes are closed by the gate valve. Cleaning of the closed water branch can be performed.
【図１】本発明の排水の浄化装置の実施の形態の一例を
示す構成図である。FIG. 1 is a configuration diagram showing an example of an embodiment of a wastewater purification device of the present invention.
【図２】その単位処理部を示す図である。FIG. 2 is a diagram showing the unit processing unit.
１ 処理槽 ２ａ〜２ｎ ろ材ユニット ３ａ〜３ｎ 送水枝管 ４ ポンプピット ６ 循環ポンプ ８ 送水主管 ９ａ〜９ｎ 仕切弁 １２ａ〜１２ｎ 単位処理部 １３ａ〜１３ｎ ガイドパイプ DESCRIPTION OF SYMBOLS 1 Processing tank 2a-2n Filter medium unit 3a-3n Water supply branch pipe 4 Pump pit 6 Circulation pump 8 Water supply main pipe 9a-9n Gate valve 12a-12n Unit processing part 13a-13n Guide pipe
Claims (2)
され、かつその中心部にガイドパイプを有する単位処理
部を、その開口部を上に向けて任意間隔を隔てて上下方
向に複数段配置して形成されるろ材ユニットを配設し、
前記処理槽の下部のポンプピット内には、循環ポンプを
配設し、前記ポンプピット内の排水を前記循環ポンプに
よって最上段の前記単位処理部に供給し、この単位処理
部の内部に滞留した排水が溢流してその表面を伝わって
下段の前記単位処理部に落下し、これを繰り返して最下
段の前記単位処理部に達するように構成し、前記単位処
理部の内部懸濁微生物とその表面の微生物によって排水
中の有機物を浄化する排水の浄化装置において、 前記ろ材ユニットが複数個並設され、 前記循環ポンプに接続された送水主管から複数の送水枝
管が分岐され、 これら送水枝管が前記ろ材ユニット毎に、それぞれ前記
単位処理部の前記ガイドパイプを貫通するとともに、そ
の先端部が最上段の前記単位処理部の内側に位置するよ
うに配設された、 ことを特徴とする排水の浄化装置。1. A unit processing section formed in a hemispherical bowl shape and having a guide pipe in the center thereof is disposed at an upper portion in a processing tank at an arbitrary interval with its opening facing upward. Arrange filter media units formed by arranging multiple stages in the direction,
In the pump pit at the lower part of the processing tank, a circulating pump is provided, and the drainage in the pump pit is supplied to the uppermost unit processing unit by the circulating pump and stays inside the unit processing unit. The wastewater overflows and travels along the surface to drop to the lower unit processing unit, and this is repeated so as to reach the lowermost unit processing unit. In a wastewater purifying apparatus for purifying organic matter in wastewater by microorganisms, a plurality of the filter medium units are arranged in parallel, and a plurality of water supply branch pipes are branched from a water supply main pipe connected to the circulation pump. For each of the filter media units, each penetrates the guide pipe of the unit processing unit, and is disposed such that its tip is located inside the uppermost unit processing unit. Drainage purification equipment characterized.
弁がそれぞれ設けられたことを特徴とする請求項１記載
の排水の浄化装置。2. The wastewater purifying apparatus according to claim 1, wherein each of said water supply branch pipes is provided with a gate valve capable of closing a pipe line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07503298A JP3398951B2 (en) | 1998-03-10 | 1998-03-10 | Wastewater purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07503298A JP3398951B2 (en) | 1998-03-10 | 1998-03-10 | Wastewater purification equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11253977A true JPH11253977A (en) | 1999-09-21 |
| JP3398951B2 JP3398951B2 (en) | 2003-04-21 |
Family
ID=13564453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07503298A Expired - Fee Related JP3398951B2 (en) | 1998-03-10 | 1998-03-10 | Wastewater purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3398951B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007209855A (en) * | 2006-02-07 | 2007-08-23 | Tokyo Univ Of Marine Science & Technology | Microorganism support single substance and sewage purifying apparatus for sewage purification |
| KR101511939B1 (en) * | 2014-08-21 | 2015-04-14 | 화승개발 주식회사 | Sewage treatment equipment |
-
1998
- 1998-03-10 JP JP07503298A patent/JP3398951B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007209855A (en) * | 2006-02-07 | 2007-08-23 | Tokyo Univ Of Marine Science & Technology | Microorganism support single substance and sewage purifying apparatus for sewage purification |
| KR101511939B1 (en) * | 2014-08-21 | 2015-04-14 | 화승개발 주식회사 | Sewage treatment equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3398951B2 (en) | 2003-04-21 |
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