JPH0824516A - Water treating device - Google Patents
Water treating deviceInfo
- Publication number
- JPH0824516A JPH0824516A JP6169135A JP16913594A JPH0824516A JP H0824516 A JPH0824516 A JP H0824516A JP 6169135 A JP6169135 A JP 6169135A JP 16913594 A JP16913594 A JP 16913594A JP H0824516 A JPH0824516 A JP H0824516A
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- water
- distribution pipe
- air
- cleaning
- 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.)
- Pending
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
- Filtration Of Liquid (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、濾材を用いた水処理設
備の内部の配管方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping method inside a water treatment facility using a filter medium.
【０００２】[0002]
【従来の技術】一般に、水処理設備は処理槽内に充填し
た濾材表面に増殖した微生物によって汚染物質を除去す
る水処理設備、及び被処理水中の懸濁物質を濾材を用い
て除去する濾過処理設備がある。これらの水処理設備を
長時間使用していると、濾材の間隙に捕捉された懸濁物
質や濾材の表面に増殖した菌体により目詰まりを起こ
し、処理効率が低下してくる。従って、濾材の間隙に捕
捉された懸濁物質や増殖した菌体を適切な時間間隔で洗
浄し、除去する事により、処理効率を復元させる必要が
ある。2. Description of the Related Art Generally, a water treatment facility is a water treatment facility for removing contaminants by microorganisms grown on the surface of a filter medium filled in a treatment tank, and a filtration treatment for removing suspended substances in water to be treated using the filter medium. There are facilities. When these water treatment facilities are used for a long period of time, the suspended substances trapped in the gaps of the filter medium or the bacterial cells grown on the surface of the filter medium cause clogging and the treatment efficiency decreases. Therefore, it is necessary to restore the treatment efficiency by washing and removing the suspended substances trapped in the gaps of the filter medium and the grown bacterial cells at appropriate time intervals.
【０００３】図２に従来の水処理設備の構成例を示す。
この水処理設備には被処理水供給配管１、洗浄用空気分
配配管２、排水配管３および散気用空気分配配管８が別
々に導入されそれぞれ分配配管が設置されており、処理
水は処理水配管１４を通して、上向流の洗浄排水は洗浄
排水配管１３より処理槽外へ排出される。この水処理設
備における濾材の洗浄は、濾材層１１に下部より洗浄用
空気を吹き込み濾材を攪拌し、捕捉された懸濁物質や菌
体を分離し、洗浄用水を通常の被処理水の流れと同じ方
向や逆方向に流して、分離された懸濁物質や菌体を処理
槽外に流出させる事により行っている。これらの水処理
設備は、使用時及び濾材洗浄時に濾材の流出を防止する
ため濾材層の上部および下部にそれぞれ流出防止装置１
２、１０を設置している。FIG. 2 shows an example of the configuration of a conventional water treatment facility.
In this water treatment facility, a treated water supply pipe 1, a cleaning air distribution pipe 2, a drainage pipe 3 and an air diffusing air distribution pipe 8 are separately introduced and distribution pipes are respectively installed, and the treated water is treated water. Through the pipe 14, the upflow cleaning drainage is discharged from the cleaning drainage pipe 13 to the outside of the processing tank. The washing of the filter medium in this water treatment facility is carried out by blowing cleaning air into the filter medium layer 11 from below to stir the filter medium to separate trapped suspended substances and fungi, and the washing water is used as a normal flow of water to be treated. It is carried out by flowing in the same direction or in the opposite direction so that the separated suspended solids and bacterial cells flow out of the treatment tank. These water treatment facilities include an outflow prevention device 1 at the upper and lower portions of the filter medium layer in order to prevent the filter medium from flowing out during use and washing of the filter medium.
Two and ten are installed.
【０００４】処理槽の下部には、洗浄操作に必要な洗浄
用空気分配配管２や散気用空気分配配管８が設置されて
いる。また処理槽の上部には上部洗浄水分配配管１５が
設置されており、洗浄操作時には設置された弁の開閉操
作により空気や水を順次流して濾材の洗浄を行ってい
る。A cleaning air distribution pipe 2 and an air diffusion air distribution pipe 8 necessary for the cleaning operation are installed in the lower part of the processing tank. Further, an upper washing water distribution pipe 15 is installed on the upper part of the treatment tank, and during the washing operation, air and water are sequentially flowed by the opening / closing operation of the installed valve to wash the filter medium.
【０００５】従来、これらの洗浄用の配管は濾材の上下
の流出防止装置の外側（濾材層に対して）に設置されて
おり、そのため流出防止装置である金網等を通して洗浄
用水、洗浄用空気あるいは散気用空気を流す必要があ
る。特に濾過設備のように平均径の小さい濾材を使用す
る場合には使用する流出防止装置である金網の目開きが
小さく、洗浄用空気あるいは洗浄用水の流通・分散が金
網により著しく阻害される。金網によって洗浄水、洗浄
用空気の流通が阻害され洗浄水が金網上に滞留し間欠的
に落下したり、洗浄用空気が金網下に滞留し間欠的に吹
き抜けたりするため洗浄効果が上がらなかった。また、
洗浄用空気や散気用空気によって処理槽下部が加圧され
るので特に水封部等を有する場合、該水封部から空気が
逃げないよう弁を設ける等の設計上の配慮を必要とし
た。Conventionally, these cleaning pipes are installed outside the outflow prevention device above and below the filter medium (relative to the filter medium layer). Therefore, the cleaning water, the cleaning air, or the cleaning air is passed through the outflow prevention device such as a wire mesh. It is necessary to flow aeration air. In particular, when a filter medium having a small average diameter is used as in a filtering facility, the wire mesh which is the outflow prevention device used has a small opening, and the flow and dispersion of cleaning air or cleaning water is significantly hindered by the metal mesh. The flow of cleaning water and cleaning air was obstructed by the wire mesh, and the cleaning water stayed on the wire mesh and dropped intermittently, or the cleaning air stayed under the wire mesh and intermittently blew off, so the cleaning effect did not improve. . Also,
Since the lower part of the treatment tank is pressurized by the cleaning air and the air for aeration, especially when there is a water sealing part, it is necessary to consider the design such as providing a valve to prevent air from escaping from the water sealing part. .
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上部および
下部に流出防止装置を有する処理槽内に濾材を充填した
水処理設備において、濾材の洗浄を効率的に行えるよう
洗浄用配管が適切に設置された水処理設備を提供するも
のである。DISCLOSURE OF THE INVENTION The present invention provides a water treatment facility in which a filter medium is filled with a filter medium in an upper portion and a lower portion to prevent the filter medium from being washed efficiently so that the filter medium can be efficiently washed. It provides the installed water treatment equipment.
【０００７】[0007]
【課題を解決するための手段】本発明は、処理槽内に浮
遊濾材を充填し、該濾材層の上下に濾材の流出防止装置
を有し、被処理水分配配管、排水集水配管、洗浄用空気
分配配管と散気用空気分配配管、洗浄水分配配管から選
ばれた１以上の配管を設置した水処理設備において、
（１）前記処理槽内の下部流出防止装置の上方に洗浄用
空気分配配管または洗浄用空気分配配管と散気用空気分
配配管とが設置されること又は（２）処理槽上部に設置
される上部洗浄水分配配管が上部流出防止装置の下方に
設置されること及び（３）上記（１）、（２）が同時に
実施されることを特徴とする水処理設備である。According to the present invention, a treatment tank is filled with a floating filter medium, and a filter medium outflow preventing device is provided above and below the filter medium layer, and a treated water distribution pipe, a waste water collecting pipe, and a cleaning pipe are provided. In a water treatment facility equipped with one or more pipes selected from an air distribution pipe for air distribution, an air distribution pipe for diffused air, and a wash water distribution pipe,
(1) A cleaning air distribution pipe or a cleaning air distribution pipe and an air diffusion air distribution pipe are installed above the lower outflow prevention device in the processing tank, or (2) are installed above the processing tank. The water treatment facility is characterized in that the upper wash water distribution pipe is installed below the upper outflow prevention device, and (3) the above (1) and (2) are simultaneously performed.
【０００８】本発明において、処理槽内の濾材の上部お
よび下部の流出防止装置は、材質を問わず強度を有する
網、バースクリーンまたは孔開き板等、濾材を槽内に止
めるとともに処理水等を支障なく通過させる穴を有する
ものであればよい。またこれらの網、バースクリーンま
たは孔開き板等を組み合わせて使用することもできる。In the present invention, the outflow preventive device for the upper and lower portions of the filter medium in the treatment tank is a mesh, bar screen, perforated plate or the like having strength regardless of the material and holds the filter medium in the tank while treating water. Any hole can be used as long as it has a hole that allows it to pass through without hindrance. It is also possible to use a combination of these nets, bar screens or perforated plates.
【０００９】本発明において用いられる浮遊濾材の材質
は、処理層内の被処理水よりも比重の小さい樹脂、特に
発泡ポリスチレン、発泡ポリプロピレン、発泡ポリエチ
レン等の発泡樹脂の多孔質物質が濾材の表面積を大きく
するので好ましい。本発明においては１種類又は２種類
以上を混合した浮遊濾材が用いられる。浮遊濾材の形状
は任意でよいが、球状、小片状、粒状、円柱状、中空円
筒状、中空球状等の形状が好ましい。The material of the floating filter medium used in the present invention is a resin having a specific gravity smaller than that of the water to be treated in the treatment layer, particularly a porous substance of foamed resin such as expanded polystyrene, expanded polypropylene, expanded polyethylene, etc. It is preferable because it is increased. In the present invention, a floating filter medium is used which is a single type or a mixture of two or more types. The floating filter medium may have any shape, but a spherical shape, a small piece shape, a granular shape, a cylindrical shape, a hollow cylindrical shape, a hollow spherical shape, or the like is preferable.
【００１０】本発明は、生物学的水処理設備である排水
中に散気用空気を送風する好気性生物膜処理の方法に対
して用いることができる。また空気を吹き込まずに嫌気
性生物膜処理の方法に対しても用いることができる。更
に微細な懸濁物質を除去する濾過設備として用いること
ができる。INDUSTRIAL APPLICABILITY The present invention can be used for a method of aerobic biofilm treatment in which aeration air is blown into waste water which is a biological water treatment facility. It can also be used for a method of anaerobic biofilm treatment without blowing air. It can be used as filtration equipment for removing finer suspended matter.
【００１１】本発明において、洗浄工程での濾材の攪拌
は濾材層の下部より空気を供給して行うが、この洗浄用
空気分配配管は下部流出防止装置の上部に設置される。
好ましくは濾材層の下部から洗浄用空気を供給すること
によって濾材層をより効率的に流動状態にすることがで
きるため洗浄効率を向上させることが可能である。濾材
の洗浄に入る前に、設備内の水面の位置を上部流出防止
装置より低くなるように水面調整をおこない、濾材が充
分展開するようにして洗浄効果が上がるようにすること
が好ましい。In the present invention, the agitation of the filter medium in the cleaning step is performed by supplying air from the lower part of the filter medium layer, and this cleaning air distribution pipe is installed above the lower outflow prevention device.
Preferably, by supplying the cleaning air from the lower part of the filter medium layer, the filter medium layer can be brought into the fluidized state more efficiently, so that the cleaning efficiency can be improved. Before starting the cleaning of the filter medium, it is preferable to adjust the water level so that the position of the water surface in the equipment is lower than that of the upper outflow prevention device so that the filter medium is sufficiently developed to enhance the cleaning effect.
【００１２】一般に使用される浮遊濾材の大きさは水処
理設備の場合は、平均径として５ｍｍ−２０ｍｍであ
り、濾過設備として使用する場合は０．５−５ｍｍであ
る。本発明を生物膜濾過設備に適用した場合、使用する
濾材の大きさが小さくなり、それに伴い流出防止装置の
開孔部面積も小さくなるため、洗浄用空気分配配管だけ
でなく散気用空気分配配管をも下部流出防止装置の上部
に設置することが好ましい。The size of the commonly used floating filter medium is 5 mm-20 mm as an average diameter in the case of water treatment equipment, and 0.5-5 mm in the case of being used as filtration equipment. When the present invention is applied to the biofilm filtration equipment, the size of the filter medium used becomes smaller and the area of the opening of the outflow prevention device becomes smaller accordingly, so that not only the cleaning air distribution pipe but also the air diffusion air distribution It is preferable that the pipe is also installed above the lower outflow prevention device.
【００１３】本発明において、処理槽の上部より供給す
る洗浄水は上部流出防止装置の下部に分配配管を設置し
て直接濾材層内に導入される。この時、濾材層を下げて
洗浄水が濾材層の上部から直接散布されるようにすれ
ば、より高い洗浄効率を得ることができる。洗浄水は濾
材層の上部からの散布に限らず、洗浄水を処理層の下部
から上向流として流しても良いし、また両方法を併用で
きるようにしておくことができる。洗浄水として一般に
処理水を使用することができ、また原水が洗浄用として
使用できる場合は原水を使用してもよい。In the present invention, the cleaning water supplied from the upper part of the treatment tank is directly introduced into the filter medium layer by installing a distribution pipe below the upper outflow prevention device. At this time, if the filter medium layer is lowered so that the cleaning water is directly sprayed from the upper portion of the filter medium layer, higher cleaning efficiency can be obtained. The washing water is not limited to being sprayed from the upper part of the filter medium layer, but the washing water may be made to flow as an upward flow from the lower part of the treatment layer, or both methods can be used together. Generally, treated water can be used as the washing water, and if the raw water can be used for washing, the raw water may be used.
【００１４】上部、下部流出防止装置の間に設置される
分配配管の開口部には、充填された濾材の流出防止のた
め開口部を金網状のもので覆ったり、弁の設置が望まし
い。At the opening of the distribution pipe installed between the upper and lower outflow prevention devices, it is desirable to cover the opening with a wire mesh or to install a valve in order to prevent outflow of the filled filter medium.
【００１５】充填濾材の下部に設置される下部流出防止
装置のかわりに、配管上のノズル開孔部からの濾材の流
出防止装置を設けることができる。Instead of the lower outflow prevention device installed in the lower part of the filling filter medium, an outflow prevention device for the filter medium from the nozzle opening portion on the pipe can be provided.
【００１６】上向流水処理装置の場合、処理槽下部には
被処理水分配配管、洗浄水分配配管及び排水集水配管を
別々に設置しても良いが、これらを兼用することにより
処理槽の高さを低くできるとともに被処理水分配配管の
内部に蓄積する汚泥等の物質を水抜き時に系外へ排出す
ることができ、配管や配管の開孔部やノズルの詰まり防
止上の効果もある。In the case of the upward flow water treatment apparatus, the treated water distribution pipe, the wash water distribution pipe, and the drainage water collection pipe may be separately installed in the lower portion of the treatment tank, but by using these together, The height can be reduced, and substances such as sludge that accumulate inside the treated water distribution pipe can be discharged to the outside of the system when draining water, which also has the effect of preventing clogging of pipes and pipe openings and nozzles. .
【００１７】以下、図面を用いて本発明の特徴をさらに
詳細に説明する。The features of the present invention will be described in more detail below with reference to the drawings.
【００１８】本発明を上向流生物膜処理設備に適用した
実施の形態の一例を図１に、従来の実施形態を図２に示
す。図１において、下部流出防止装置１０の下部に原水
供給配管１、下部洗浄水１６および排水配管３が接続さ
れた主分配配管４が設置されている。これらの使用流体
の切り換えは、それぞれの配管上の自動弁５、１６およ
び７で制御される。この場合、洗浄水として原水を使用
できる場合は、下部の洗浄水の配管は省略される。一
方、洗浄用空気供給配管２および散気用空気配管８の分
配配管は下部流出防止装置１０の上部に設置されてい
る。なお散気用と洗浄用空気の配管を共用することがで
きる。また、上部の洗浄水配管１５は上部流出防止装置
１２の下部に設置されている。上部流出防止装置の上面
の洗浄が必要な場合には、従来通り、その上部に洗浄配
管やノズル等を設置する。従来は図２に示すように、洗
浄用空気供給配管２および散気用空気配管８は下部流出
防止装置１０の下側に設置されていた。なお散気用と洗
浄用空気の配管を共用することができる。一方、上部の
洗浄水配管１５は上部流出防止装置１２の上部に設置さ
れている。FIG. 1 shows an example of an embodiment in which the present invention is applied to an upflow biofilm treatment facility, and FIG. 2 shows a conventional embodiment. In FIG. 1, a main distribution pipe 4 to which a raw water supply pipe 1, a lower wash water 16 and a drain pipe 3 are connected is installed below a lower outflow prevention device 10. The switching of these working fluids is controlled by automatic valves 5, 16 and 7 on the respective pipes. In this case, if raw water can be used as the wash water, the lower wash water pipe is omitted. On the other hand, the distribution pipes of the cleaning air supply pipe 2 and the air diffusion pipe 8 are installed above the lower outflow prevention device 10. In addition, the pipes for air diffusion and cleaning air can be shared. Further, the upper wash water pipe 15 is installed below the upper outflow prevention device 12. When it is necessary to clean the upper surface of the upper outflow prevention device, cleaning pipes, nozzles, etc. are installed on the upper part as is conventional. Conventionally, as shown in FIG. 2, the cleaning air supply pipe 2 and the air diffusing air pipe 8 are installed below the lower outflow prevention device 10. In addition, the pipes for air diffusion and cleaning air can be shared. On the other hand, the upper wash water pipe 15 is installed above the upper outflow prevention device 12.
【００１９】[0019]
【作用】本発明は、濾材の下部流出防止装置の上部に洗
浄用空気分配配管または洗浄用空気分配配管と散気用空
気配管が設置されているため、濾材流出防止装置である
金網等に妨げられること無く洗浄用空気及び散気用空気
が均一に濾材層に供給され洗浄効率の向上と散気用空気
の均一供給が可能となる。濾材の上部流出防止装置の下
部に上部洗浄用水分配配管が設置されているため濾材流
出防止装置である金網等に妨げられること無く均一に濾
材層が洗浄できる。According to the present invention, since the cleaning air distribution pipe or the cleaning air distribution pipe and the air diffusion pipe are installed on the upper part of the lower filter material outflow prevention device, it interferes with the wire mesh which is the filter material outflow prevention device. Thus, the cleaning air and the air for air diffusion are uniformly supplied to the filter medium layer, so that the cleaning efficiency can be improved and the air for diffusion can be uniformly supplied. Since the upper washing water distribution pipe is installed under the upper part of the filter material outflow prevention device, the filter material layer can be uniformly washed without being obstructed by the wire mesh which is the filter material outflow prevention device.
【００２０】[0020]
【実施例】以下、実施例により本発明を更に詳細に説明
する。The present invention will be described in more detail with reference to the following examples.
【００２１】実施例１ 図１で散気用空気分散配管８を除いた装置を瀘過装置と
して使用した。浮上性の濾材（ポリプロピレンの発泡体
を１〜５ｍｍに破砕した製品）を充填した濾材層１１の
下部流出防止装置（ステンレススチール製金網）１０の
下方に被処理水供給配管１、下部洗浄水配管１６および
排水配管３が共通分配配管４に接続されており使用流体
の切り換えは自動弁５，１７および７で制御される。洗
浄水としては原水を使用する場合には下部洗浄水配管１
６は省略される。一方、洗浄用空気分配配管２は下部流
出防止装置１０の上部に設置されている。上部の洗浄水
分配配管１５は上部流出防止装置（ステンレススチール
製金網）１２の下部にのみ設置されている。Example 1 The apparatus excluding the air diffusion pipe 8 for air diffusion in FIG. 1 was used as a filtration apparatus. Below the lower outflow prevention device (stainless steel wire mesh) 10 of the filter material layer 11 filled with a floatable filter material (a product obtained by crushing polypropylene foam into 1 to 5 mm), the treated water supply pipe 1 and the lower wash water pipe 16 and the drainage pipe 3 are connected to the common distribution pipe 4, and switching of the fluid used is controlled by automatic valves 5, 17 and 7. When using raw water as the wash water, the lower wash water pipe 1
6 is omitted. On the other hand, the cleaning air distribution pipe 2 is installed above the lower outflow prevention device 10. The upper wash water distribution pipe 15 is installed only under the upper outflow prevention device (stainless steel wire mesh) 12.
【００２２】洗浄は、濾材層を下げ、洗浄水が濾材層の
上部から直接散布でき、洗浄用空気の吹き込みで濾材層
が充分展開できるようにして実施した。洗浄用水も洗浄
用空気も均一に濾材層に散布あるいは吹き込まれ、比較
例に示すような洗浄水が金網上に滞水し、間欠的に落下
したり、洗浄用空気が金網下に滞留し間欠的に吹き抜け
る現象は起こらなかった。The cleaning was carried out by lowering the filter medium layer so that the cleaning water could be directly sprayed from the upper part of the filter medium layer and the filter medium layer could be sufficiently developed by blowing the cleaning air. Both the cleaning water and the cleaning air are evenly sprayed or blown onto the filter material layer, and the cleaning water as shown in the comparative example stays on the wire mesh and drops intermittently, or the cleaning air stays under the wire mesh and becomes intermittent. The phenomenon of blowing through did not occur.
【００２３】比較例 図２に示す装置を用いて実施例１と同様に実施した。洗
浄水が金網上に滞留し、間欠的に洗浄水が落下する現象
が起こり、濾材層の均一な洗浄が阻害された。また、洗
浄用空気も金網下に滞留し、間欠的に空気が金網を吹き
抜ける現象が認められ濾材層の均一な洗浄が阻害され
た。Comparative Example The same procedure as in Example 1 was carried out using the apparatus shown in FIG. The washing water stayed on the wire mesh, and the washing water dropped intermittently, which hindered the uniform washing of the filter medium layer. In addition, the cleaning air also stayed under the wire netting, and the phenomenon that the air blows through the wire netting intermittently was observed, which impeded uniform cleaning of the filter medium layer.
【００２４】[0024]
【発明の効果】本発明は、濾材の下部流出防止装置の上
部に洗浄用空気分配配管または洗浄用空気分配配管と散
気用空気配管が設置されているため、濾材流出防止装置
である金網等に妨げられること無く洗浄用空気及び散気
用空気が均一に濾材層に供給され洗浄効率の向上と散気
用空気の均一供給が可能となる。濾材の上部流出防止装
置の下部に上部洗浄用水分配配管が設置されているため
濾材流出防止装置である金網等に妨げられること無く均
一に濾材層が洗浄できる。Industrial Applicability According to the present invention, since the cleaning air distribution pipe or the cleaning air distribution pipe and the air diffusion pipe are installed above the lower filter material outflow prevention device, a wire mesh or the like as the filter material outflow prevention device is provided. The cleaning air and the air for air diffusion are uniformly supplied to the filter medium layer without being hindered by the air flow, so that the cleaning efficiency can be improved and the air for diffusion can be uniformly supplied. Since the upper washing water distribution pipe is installed under the upper part of the filter material outflow prevention device, the filter material layer can be uniformly washed without being obstructed by the wire mesh which is the filter material outflow prevention device.
【００２５】特に濾過設備のように使用する浮遊濾材の
平均径が小さく、金網の目が小さくなる場合であっても
洗浄用空気や散気用空気によって処理槽下部が加圧され
ることによる水封部の空気が逃げることによるシールが
切れることがなくなった。濾材の上部流出防止装置の下
部に洗浄用洗浄用水分配配管が設置されているため金網
上に滞水することなく直接均一に濾材層が洗浄できる。Even when the average diameter of the floating filter medium used is small and the size of the wire mesh is small, as in the case of filtration equipment, water generated by pressurizing the lower part of the treatment tank with cleaning air or air for aeration is used. The seal is no longer broken due to the escape of air in the seal. Since the cleaning water distribution pipe for cleaning is installed under the upper part of the filter material outflow prevention device, the filter material layer can be directly and uniformly cleaned without water remaining on the wire mesh.
【図１】本発明の上向流生物膜濾過設備の内部構造を示
す図である。FIG. 1 is a view showing an internal structure of an upward flow biofilm filtration equipment of the present invention.
【図２】従来の上向流生物膜濾過設備の内部構造を示す
図である。FIG. 2 is a diagram showing an internal structure of a conventional upward flow biofilm filtration equipment.
１．被処理水供給配管（被処理水分配配管） ２．洗浄用空気分配配管 ３．排水配管（排水集水配管） ４．共通分配配管 ５〜７．弁 ８．散気用空気分配配管 ９．弁 １０．下部流出防止装置 １１．濾材 １２．上部流出防止装置 １３．洗浄排水 １４．処理水 １５．上部洗浄水分配配管 １６．下部洗浄水配管（下部洗浄水分配配管） １７．弁 1. Treated water supply pipe (treated water distribution pipe) 2. Cleaning air distribution piping 3. Drainage pipe (drainage collection pipe) 4. Common distribution pipe 5-7. Valve 8. Air distribution pipe for aeration 9. Valve 10. Lower outflow prevention device 11. Filter medium 12. Upper runoff prevention device 13. Wash drain 14. Treated water 15. Upper wash water distribution pipe 16. Lower wash water pipe (lower wash water distribution pipe) 17. valve
【手続補正書】[Procedure amendment]
【提出日】平成６年１２月１６日[Submission date] December 16, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１２】一般に使用される浮遊濾材の大きさは水処
理設備の場合は、平均径として５ｍｍ−２０ｍｍであ
り、濾過設備として使用する場合は０．５−５ｍｍであ
る。本発明を生物膜濾過設備に適用した場合、洗浄用空
気分配配管だけでなく散気用空気分配配管をも下部流出
防止装置の上部に設置することが好ましい。The size of the commonly used floating filter medium is 5 mm-20 mm as an average diameter in the case of water treatment equipment, and 0.5-5 mm in the case of being used as filtration equipment. When the present invention is applied to the biofilm filtration equipment, it is preferable to install not only the cleaning air distribution pipe but also the diffusion air distribution pipe above the lower outflow prevention device.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】本発明において、処理槽の上部より供給す
る洗浄水は上部流出防止装置の下部に分配配管を設置し
て直接濾材層内に導入される。この時、濾材層を下げて
洗浄水が濾材層の上部から直接散布されるようにすれ
ば、より高い洗浄効率を得ることができる。洗浄水は濾
材層の上部からの散布に限らず、洗浄水を処理槽の下部
から上向流として流しても良いし、また両方法を併用で
きるようにしておくことができる。洗浄水として一般に
処理水を使用することができ、また原水が洗浄用として
使用できる場合は原水を使用してもよい。In the present invention, the cleaning water supplied from the upper part of the treatment tank is directly introduced into the filter medium layer by installing a distribution pipe below the upper outflow prevention device. At this time, if the filter medium layer is lowered so that the cleaning water is directly sprayed from the upper portion of the filter medium layer, higher cleaning efficiency can be obtained. The washing water is not limited to spraying from the upper part of the filter medium layer, but the washing water may be made to flow as an upward flow from the lower part of the treatment tank , or both methods can be used together. Generally, treated water can be used as the washing water, and if the raw water can be used for washing, the raw water may be used.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１８[Correction target item name] 0018
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１８】本発明を上向流生物膜処理設備に適用した
実施の形態の一例を図１に、従来の実施形態を図２に示
す。図１において、下部流出防止装置１０の下部に原水
供給配管１、下部洗浄水１６および排水配管３が接続さ
れた主分配配管４が設置されている。これらの使用流体
の切り換えは、それぞれの配管上の自動弁５、１７およ
び７で制御される。この場合、洗浄水として原水を使用
できる場合は、下部の洗浄水の配管は省略される。一
方、洗浄用空気供給配管２および散気用空気配管８の分
配配管は下部流出防止装置１０の上部に設置されてい
る。なお散気用と洗浄用空気の配管を共用することがで
きる。また、上部の洗浄水配管１５は上部流出防止装置
１２の下部に設置されている。上部流出防止装置の上面
の洗浄が必要な場合には、従来通り、その上部に洗浄配
管やノズル等を設置する。従来は図２に示すように、洗
浄用空気供給配管２および散気用空気配管８は下部流出
防止装置１０の下側に設置されていた。なお散気用と洗
浄用空気の配管を共用することができる。一方、上部の
洗浄水配管１５は上部流出防止装置１２の上部に設置さ
れている。FIG. 1 shows an example of an embodiment in which the present invention is applied to an upflow biofilm treatment facility, and FIG. 2 shows a conventional embodiment. In FIG. 1, a main distribution pipe 4 to which a raw water supply pipe 1, a lower wash water 16 and a drain pipe 3 are connected is installed below a lower outflow prevention device 10. The switching of these working fluids is controlled by automatic valves 5, 17, and 7 on the respective pipes. In this case, if raw water can be used as the wash water, the lower wash water pipe is omitted. On the other hand, the distribution pipes of the cleaning air supply pipe 2 and the air diffusion pipe 8 are installed above the lower outflow prevention device 10. In addition, the pipes for air diffusion and cleaning air can be shared. Further, the upper wash water pipe 15 is installed below the upper outflow prevention device 12. When it is necessary to clean the upper surface of the upper outflow prevention device, cleaning pipes, nozzles, etc. are installed on the upper part as is conventional. Conventionally, as shown in FIG. 2, the cleaning air supply pipe 2 and the air diffusing air pipe 8 are installed below the lower outflow prevention device 10. In addition, the pipes for air diffusion and cleaning air can be shared. On the other hand, the upper wash water pipe 15 is installed above the upper outflow prevention device 12.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２５[Name of item to be corrected] 0025
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２５】特に濾過設備のように使用する浮遊濾材の
平均径が小さく、金網の目が小さくなる場合であっても
洗浄用空気や散気用空気によって処理槽下部が加圧され
ることによる水封部の空気が逃げることによるシールが
切れることがなくなった。濾材の上部流出防止装置の下
部に上部洗浄用水分配配管が設置されているため金網上
に滞水することなく直接均一に濾材層が洗浄できる。Even when the average diameter of the floating filter medium used is small and the size of the wire mesh is small, as in the case of filtration equipment, water generated by pressurizing the lower part of the treatment tank with cleaning air or air for aeration is used. The seal is no longer broken due to the escape of air in the seal. Since the upper washing water distribution pipe is installed under the upper part of the filter medium outflow prevention device, the filter medium layer can be directly and uniformly washed without water remaining on the wire mesh.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｄ 29/62 Ｃ０２Ｆ 3/06 ＺＡＢ Ｂ０１Ｄ 23/24 Ａ 29/08 ５３０ Ｃ ５４０ Ａ 29/38 ５８０ Ｆ (72)発明者 宮川 久司 千葉県茂原市高師1039─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B01D 29/62 C02F 3/06 ZAB B01D 23/24 A 29/08 530 C 540 A 29/38 580 F (72) Inventor Kuji Miyakawa 1039 Takashi, Mobara-shi, Chiba
Claims (3)
の上下に濾材の流出防止装置を有し、被処理水分配配
管、排水集水配管、洗浄用空気分配配管と散気用空気分
配配管、洗浄水分配配管から選ばれた１以上の配管を設
置した水処理設備において、前記処理槽内の下部流出防
止装置の上方に洗浄用空気分配配管または洗浄用空気分
配配管と散気用空気分配配管とが設置されることを特徴
とする水処理設備。1. A treatment tank is filled with a floating filter medium, and a filter medium outflow preventing device is provided above and below the filter medium layer, and a treated water distribution pipe, a waste water collecting pipe, a cleaning air distribution pipe and an air diffuser are provided. In a water treatment facility in which one or more pipes selected from an air distribution pipe and a cleaning water distribution pipe are installed, a cleaning air distribution pipe or a cleaning air distribution pipe and air diffusion are provided above the lower outflow prevention device in the treatment tank. A water treatment facility, which is provided with an air distribution pipe for use.
の上下に濾材の流出防止装置を有し、被処理水分配配
管、排水集水配管、洗浄用空気分配配管と散気用空気分
配配管、洗浄水分配配管から選ばれた１以上の配管を設
置した水処理設備において、前記処理槽内の上部流出防
止装置の下方に上部洗浄水分配配管が設置されることを
特徴とする水処理設備。2. A treatment tank is filled with a floating filter medium, and a filter medium outflow preventing device is provided above and below the filter medium layer, and a treated water distribution pipe, a waste water collecting pipe, a cleaning air distribution pipe and an air diffuser are provided. In a water treatment facility in which one or more pipes selected from an air distribution pipe and a wash water distribution pipe are installed, an upper wash water distribution pipe is installed below the upper outflow prevention device in the treatment tank. Water treatment equipment.
部洗浄水分配配管が設置されたことを特徴とする請求項
１に記載の水処理設備。3. The water treatment equipment according to claim 1, wherein an upper wash water distribution pipe is installed below the upper outflow prevention device in the treatment tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6169135A JPH0824516A (en) | 1994-07-21 | 1994-07-21 | Water treating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6169135A JPH0824516A (en) | 1994-07-21 | 1994-07-21 | Water treating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0824516A true JPH0824516A (en) | 1996-01-30 |
Family
ID=15880938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6169135A Pending JPH0824516A (en) | 1994-07-21 | 1994-07-21 | Water treating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0824516A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009178714A (en) * | 2009-05-13 | 2009-08-13 | Minoru Fukaya | Filtration method |
| CN102309881A (en) * | 2011-08-17 | 2012-01-11 | 鄂州市华天设备工程有限公司 | Winterization filter |
| JP4922763B2 (en) * | 2003-08-04 | 2012-04-25 | スティーブン・エイチ・シュワルツコプフ | Liquid filtration apparatus and method with super-floating filtration particles |
| CN104524829A (en) * | 2015-01-26 | 2015-04-22 | 绿地环保科技股份有限公司 | Active quicksand filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373862A (en) * | 1976-12-14 | 1978-06-30 | Chiyoda Chem Eng & Constr Co Ltd | Medium recovery apparatus |
| JPS566324A (en) * | 1979-06-26 | 1981-01-22 | Fujikura Ltd | Method of forming insulating film on copper wire |
| JPS6385A (en) * | 1985-12-24 | 1988-01-05 | マ−ヴイン グラス アンド アソシエ−ツ | Napkin dispensing instrument |
-
1994
- 1994-07-21 JP JP6169135A patent/JPH0824516A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373862A (en) * | 1976-12-14 | 1978-06-30 | Chiyoda Chem Eng & Constr Co Ltd | Medium recovery apparatus |
| JPS566324A (en) * | 1979-06-26 | 1981-01-22 | Fujikura Ltd | Method of forming insulating film on copper wire |
| JPS6385A (en) * | 1985-12-24 | 1988-01-05 | マ−ヴイン グラス アンド アソシエ−ツ | Napkin dispensing instrument |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4922763B2 (en) * | 2003-08-04 | 2012-04-25 | スティーブン・エイチ・シュワルツコプフ | Liquid filtration apparatus and method with super-floating filtration particles |
| JP2009178714A (en) * | 2009-05-13 | 2009-08-13 | Minoru Fukaya | Filtration method |
| CN102309881A (en) * | 2011-08-17 | 2012-01-11 | 鄂州市华天设备工程有限公司 | Winterization filter |
| CN104524829A (en) * | 2015-01-26 | 2015-04-22 | 绿地环保科技股份有限公司 | Active quicksand filter |
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