JP2766881B2 - Water treatment equipment - Google Patents
Water treatment equipmentInfo
- Publication number
- JP2766881B2 JP2766881B2 JP18974289A JP18974289A JP2766881B2 JP 2766881 B2 JP2766881 B2 JP 2766881B2 JP 18974289 A JP18974289 A JP 18974289A JP 18974289 A JP18974289 A JP 18974289A JP 2766881 B2 JP2766881 B2 JP 2766881B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- main body
- apparatus main
- backwashing
- treated
- 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 - Lifetime
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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、下水処理施設、排水処理施設等において、
最初沈殿池に代る一次処理装置、再利用水を作る３次処
理装置或いは雨水の再利用や河川水、湖沼水等の浄化等
に好適な、固液分離および生物処理を行なう水処理装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to sewage treatment facilities, wastewater treatment facilities, etc.
The present invention relates to a primary treatment device instead of a primary sedimentation basin, a tertiary treatment device for producing recycled water, or a water treatment device for performing solid-liquid separation and biological treatment suitable for reusing rainwater, purifying river water, lake water, and the like. .
水処理における固液分離には、沈殿処理、浮上処理、
過等があり特に過は、一次処理から三元処理に至る
まで広く用いられている。For solid-liquid separation in water treatment, precipitation treatment, flotation treatment,
There is excess and especially excess is widely used from primary processing to ternary processing.
過装置としては、例えば周知の重力式急速或いは緩
速過装置、上向流過装置、自動バルブレス過装置
等があげられ、これらの装置において、材として砂、
砂利を積層したものが用いられている。Examples of the filtration device include a well-known gravity type rapid or slow filtration device, an upward flow filtration device, an automatic valveless filtration device, and the like.
A stack of gravel is used.
また生物処理は、好気性の活性汚泥法が最も多く用い
られており、生物処理のみを行なうものとしては、周知
の活性汚泥による方法、回転円板による方法等がある。In the biological treatment, an aerobic activated sludge method is most often used. As a method for performing only the biological treatment, there are a known method using activated sludge and a method using a rotating disk.
また過と生物処理を行なうものとしては、下部に支
持砂利層、上部に砂層を設け、被処理水を上部から流入
させるとともに床下部から散気装置を通して常時空気
を吹込み、下部より処理水を得る方法がある。被処理水
は、材内部を通過する間に、材表面に付着した生物
膜による有機物の分解と固形物の分離が並行して行なわ
れる。In addition, for the treatment of excess and biological treatment, a support gravel layer is provided at the bottom and a sand layer is provided at the top, water to be treated is allowed to flow in from the top, air is constantly blown from the bottom of the floor through a diffuser, and treated water is poured from the bottom. There is a way to get it. While the water to be treated passes through the interior of the material, the decomposition of the organic matter and the separation of the solid matter are performed in parallel by the biofilm attached to the surface of the material.
また、いずれの過装置及び上記の生物処理を伴う
過装置においても処理時間の経過に伴なって捕捉された
固形物や増殖した微生物により、層が閉塞するので、
逆洗を行なうことが必要である。In addition, in any of the over-equipment and the over-equipment with the biological treatment described above, the solid is caught with the elapse of the treatment time or the microorganisms that have multiplied, so that the layer is closed,
Backwashing is required.
しかし、上記過装置、および生物処理を伴なう過
装置は、いずれも過層の局所的閉塞が発生し易く、長
時間の過作業を継続して行なうことが出来ない。However, in the above-mentioned over-apparatus and over-apparatus with biological treatment, local blockage of the over-layer is apt to occur, and it is not possible to continue over-operation for a long time.
上記閉塞は、逆洗によって解除することは出来るが、
その逆洗間隔が短かく、自動バルブレス過装置を除い
ては、逆洗に動力を必要とする。また、生物処理を伴な
う過装置においては、生物膜による有機物の分解を重
視しているため、被処理水は生物膜と長軸間接触させる
必要があり、大きな過速度が得られない等の不都合が
あった。The above blockage can be released by backwashing,
The backwashing interval is short and requires power for backwashing, except for the automatic valveless filter. In addition, in a filtration apparatus involving biological treatment, since the emphasis is placed on the decomposition of organic matter by a biofilm, the water to be treated must be brought into contact with the biofilm along the long axis, and a large overspeed cannot be obtained. There was an inconvenience.
本発明は上記の事情に鑑みなされたもので、懸濁物の
除去および必要に応じてこれと生物処理が出来、運転に
人手を要さない水処理装置を提供することを目的とす
る。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a water treatment apparatus capable of removing suspended matter and performing biological treatment with the same if necessary, and requiring no human operation.
上記の目的を達成するため、本発明の装置は、塔体内
に、下方から上方に向けて傾斜板部、散気部材、浮上性
過部が配置されるとともに、浮上性過部上方に処理
水貯留部が形成され、塔底部に被処理水導入部が、塔頂
部に処理水導出部が設けられた装置本体と、 この装置本体下部の側方に並列して設置された逆洗浄
排出管切換え槽と、 この逆洗浄排出管切換え槽の水位の上昇によって開栓
し、降下によって閉栓する栓を有する逆洗浄排出管切換
え装置と、 装置本体の塔底部に一端が接続され、装置本体の満水
位よりも高い位置を経て、他端が前記逆洗浄排出管切換
え槽に開口する逆洗開始管と、 この逆洗開始管の最高部近傍に一端が接続され、他端
が装置本体の満水位よりも低い位置で開口するサイフォ
ンブレイカーと、 上記逆洗開始管の塔底部側に一端が接続され、他端が
前記逆洗浄排出管切換え装置の栓に接続される逆洗浄排
出管を有する。In order to achieve the above object, the apparatus of the present invention is arranged such that an inclined plate portion, a diffuser member, and a floatable portion are arranged in a tower body from below to above, and treated water is disposed above the floatable portion. An apparatus body with a storage section formed, a treated water introduction section at the bottom of the tower, and a treated water outlet section at the top of the tower, and a backwash discharge pipe switch installed in parallel at the side of the lower section of the apparatus body A tank, and a reverse-cleaning discharge pipe switching device having a stopper that opens and closes when the water level of the reverse-cleaning discharge pipe switching tank rises, and one end is connected to the bottom of the tower of the apparatus main body, and the water level of the apparatus main body. A backwash start pipe whose other end is open to the backwash discharge pipe switching tank through a higher position, one end is connected near the highest part of the backwash start pipe, and the other end is higher than the water level of the apparatus main body. Siphon breaker opening at a low position It is connected to one end to the bottom side, with a backwash discharge pipe and the other end is connected to the plug of the backwash discharge pipe switching device.
また、前記装置本体の処理水貯留部に接触曝気材を設
けてもよい。Further, a contact aeration material may be provided in the treated water storage section of the apparatus main body.
本発明の水処理装置は上記の構成となっているので、
装置本体に導入された被処理水は、浮遊する材よりな
る過層によって固形分が除去される。また、散気部材
が噴出する空気によって、前記過された固形分が過
層内に分散され、局所的な閉塞が解消される。Since the water treatment apparatus of the present invention has the above configuration,
The solid content of the water to be treated introduced into the apparatus body is removed by an overlayer made of a floating material. In addition, the excess solid content is dispersed in the excess layer by the air spouted from the air diffusion member, and local blockage is eliminated.
また、浮上性過部が固形分で閉塞すると自動的に逆
洗が行われ、逆洗後は自動的に定常運転に復帰する。In addition, when the buoyant excess portion is clogged with solids, backwashing is automatically performed, and after the backwashing, the operation automatically returns to the normal operation.
第１図は本発明に係る水処理装置の一実施例を示すも
ので、図中符号１は、各操作ユニットよりなる水処理機
構が塔体内に上下方向に配置収納されている装置本体で
ある。FIG. 1 shows an embodiment of a water treatment apparatus according to the present invention. In the figure, reference numeral 1 denotes an apparatus body in which a water treatment mechanism composed of operation units is vertically arranged and housed in a tower body. .
装置本体１の底部には、ポンプ２によって被処理水が
導入される導入管３が接続され、上部には、水位を保持
して処理水４を抜き出す溢流管５が接続されている。An inlet pipe 3 into which water to be treated is introduced by a pump 2 is connected to the bottom of the apparatus main body 1, and an overflow pipe 5 for holding the water level and extracting treated water 4 is connected to the upper part.
上記装置本体１の下部の側方には、これに並列して逆
洗浄排出管切換え槽６が設けられている。この切換え槽
６の下端には、溢流によって切換え槽６内の水を抜き出
し、汚泥濃縮槽７へ送る水位調節用排出管８の一端が接
続されている。On the side of the lower part of the apparatus main body 1, a backwashing / exhaust pipe switching tank 6 is provided in parallel with the tank. The lower end of the switching tank 6 is connected to one end of a water level adjusting discharge pipe 8 for extracting water in the switching tank 6 by overflow and sending the water to the sludge concentration tank 7.
また上記装置本体１の下端には、逆洗開始管（サイフ
ォン管）９の一端が接続され、この逆洗開始管９は、装
置本体１に沿って立上り、頂部よりやや高い位置で下方
に曲げられ、下方に下り、上記切換え槽６内の上部に他
端が開口している。One end of a backwashing start pipe (siphon pipe) 9 is connected to the lower end of the apparatus main body 1. The backwashing start pipe 9 rises along the apparatus main body 1 and is bent downward at a position slightly higher than the top. The other end is opened at the upper part in the switching tank 6.
この逆洗開始管９の最高部9aの近傍には、サイフォン
ブレーカ10の一端が接続され、その他端は、上記装置本
体１の上部で本体１の満水位よりも下方に開口してい
る。One end of a siphon breaker 10 is connected to the vicinity of the highest portion 9a of the backwashing start pipe 9, and the other end is opened at the upper part of the apparatus main body 1 below the full water level of the main body 1.
また、上記逆洗開始管９の立上り部分の下部には逆洗
浄排出管11の一端が接続され、その他端には第２図に示
すように、切換え槽６の水位によって上下するボールタ
ップ12で開閉する切換え装置の栓13が取付けられ、上記
切換え槽６の内部に開口している。この栓13は、切換え
槽６の水位の上昇によって開き、降下によって閉じるよ
うになっている。上記栓13は、ストッパ14によってその
上昇が制限されている。One end of a backwash discharge pipe 11 is connected to the lower part of the rising portion of the backwash start pipe 9, and the other end is opened and closed by a ball tap 12 which moves up and down according to the water level of the switching tank 6 as shown in FIG. A plug 13 of the switching device to be changed is attached, and is opened inside the switching tank 6. The stopper 13 opens when the water level of the switching tank 6 rises and closes when it falls. The stopper 13 is restricted from rising by a stopper 14.
また上記装置本体１内に収納されている水処理機構は
次のようなユニットプロセスによって構成されている。The water treatment mechanism housed in the apparatus main body 1 is constituted by the following unit process.
すなわち、装置本体１の底部には、固形分を衝突・接
触により除去し沈降分離の効率を高める傾斜板21が設け
られている。この傾斜板21の上方には、ブロワー22によ
って圧入された空気を分散供給する散気部材23が設けら
れている。この散気部材23の上方には、所定の間隔をお
いて、網状の下グリッド24、および上グリッド25が設け
られ、これらの間には比重が0.8〜0.95で、上記グリッ
ド24、25の目を通らない球形材料よりなる浮上性過材
26が、移動自在に粗に充填されて浮上性過層が形成さ
れている。上記過材26の量は、上下のグリッドの間の
容積を1/3〜3/4の範囲が適当である。That is, the bottom of the apparatus main body 1 is provided with an inclined plate 21 that removes solids by collision and contact to increase the efficiency of sedimentation and separation. Above the inclined plate 21, there is provided a diffusing member 23 for distributing and supplying the air press-fitted by the blower 22. Above the air diffusing member 23, a mesh-like lower grid 24 and an upper grid 25 are provided at predetermined intervals, and the specific gravity between them is 0.8 to 0.95. Floating material made of spherical material that does not pass through
26 are loosely filled so as to be movable, thereby forming a floating overlayer. The amount of the excess material 26 is appropriately set so that the volume between the upper and lower grids is 1/3 to 3/4.
上記上グリッド25の上部には、散気部材23より噴出さ
れる気泡および水向水流を集めて、上記装置本体１の水
平方向所定の位置に導くロート状の集気部27が設けられ
ている。この集気部27の放出口27aの上部には、装置本
体１の水平断面より格段に小さい断面のエアーリフト28
aが設けられている。このエアーリフト28aの上端は、上
記溢流管５の位置より低くなっている。上記エアーリフ
トの側方の装置本体１内には、接触材28bが設けられ接
触曝気部28が構成されている。Above the upper grid 25, there is provided a funnel-shaped air collecting portion 27 that collects bubbles and water flowing from the air diffusing member 23 and guides them to a predetermined position in the horizontal direction of the apparatus main body 1. . An air lift 28 having a section much smaller than the horizontal section of the apparatus main body 1 is provided above the discharge port 27a of the air collecting section 27.
a is provided. The upper end of the air lift 28a is lower than the position of the overflow pipe 5. A contact member 28b is provided in the apparatus main body 1 on the side of the air lift, and a contact aeration unit 28 is configured.
次に本発明の装置の使用方法を説明する。 Next, a method of using the apparatus of the present invention will be described.
本発明の装置に導入される被処理水は、スクリーンを
通した生下水、２次処理水、或いは雨水、河川、湖沼の
水等である。The water to be treated introduced into the apparatus of the present invention is raw sewage that has passed through a screen, secondary treated water, or rainwater, river water, lake water, or the like.
上記装置に所定の速度で導入された被処理水は、傾斜
板21に通される。傾斜板21においては衝突・接触によっ
て、沈降固形分が傾斜板21下方に沈殿していき、効率よ
く固形分の除去が行なわれる。The water to be treated introduced into the apparatus at a predetermined speed is passed through the inclined plate 21. In the inclined plate 21, the settled solids precipitate below the inclined plate 21 due to collision and contact, and the solids are efficiently removed.
傾斜板21を通過した被処理水は、下部グリッド24を通
過し過材26の層に達して過される。The water to be treated that has passed through the inclined plate 21 passes through the lower grid 24, reaches the layer of the excess material 26, and is passed.
上記過材26は、上下のグリッド25、24の目を通らず
比重が0.8〜0.95となっているので、上グリッド下面に
過層が形成される。被処理水は、上向流でこれを通過
する間に、小さな懸濁物までが、上記過材26によって
捕捉される。しかも散気管23からは空気が常時送られて
いるので、過層の下面表層部で局所的な閉塞が発生し
ても、懸濁物が揺れ動かされ局所的な閉塞が解消され
る。これにより過層全体が有効に利用され、閉塞に至
るまでの時間が大幅に延長される。さらに過材26は球
形となっているので、生物膜の付着増殖は少なく過可
能時間の延長を助長する。しかし、少量の生物膜は存在
するので、僅かの有機物除去が副次的に行なわれる。Since the specific material 26 has a specific gravity of 0.8 to 0.95 without passing through the upper and lower grids 25 and 24, an excessive layer is formed on the lower surface of the upper grid. As the water to be treated passes through it in an upward flow, up to a small suspended matter is captured by the excess material 26. Moreover, since air is constantly sent from the air diffuser 23, even if a local blockage occurs on the lower surface layer of the overlayer, the suspended material is swung and the local blockage is eliminated. This effectively utilizes the entire overlayer and significantly extends the time to closure. Further, since the dressing 26 has a spherical shape, there is little adhesion and growth of the biofilm, which helps to extend the available time. However, since a small amount of biofilm is present, a small amount of organic matter removal is secondarily performed.
過層を通過した被処理水および空気は、集気部27に
よって集められ、放出口27aより気液混合流となってエ
アーリフト28a、接触材28bよりなる接触曝気部28のエア
ーリフト28aに導入される。エアーリフト28aは横断面が
小さく、ここを気液混層で上昇するので外部との比重差
は大きく、さらにエアーリフトの上端は水面下にあり、
ヘッドがないので、そのエアーリフト効果は大きく、エ
アーリフト28aの下部周辺の水を吸引して、高速で上昇
する。これにより接触曝気部28の水全体が、循環され
る。この循環により、死水域がなくなり、溶存酸素が均
一化され、エアーリフト28aの側部に配置されている接
触材28bは、酸素を溶解する水の流れに接触し、生物膜
が成長し、接触曝気部中の水に含有される、有機物が生
物的に分解除去される。The water to be treated and the air that have passed through the upper layer are collected by the air collecting section 27, and become a gas-liquid mixed flow from the discharge port 27a and introduced into the air lift 28a of the contact aeration section 28 including the air lift 28a and the contact material 28b. Is done. The air lift 28a has a small cross section and rises here with a gas-liquid mixed layer, so the specific gravity difference with the outside is large, and the upper end of the air lift is below the water surface,
Since there is no head, the air lift effect is great, and the water around the lower part of the air lift 28a is sucked and rises at high speed. Thereby, the whole water of the contact aeration unit 28 is circulated. By this circulation, dead water area is eliminated, dissolved oxygen is made uniform, and the contact material 28b disposed on the side of the air lift 28a comes into contact with the flow of water that dissolves oxygen, and the biofilm grows, Organic substances contained in the water in the aeration unit are biologically decomposed and removed.
この接触曝気部28中の水の一部は処理水４として溢流
管５から抜き出される。Part of the water in the contact aeration unit 28 is extracted from the overflow pipe 5 as treated water 4.
上記のようにして水処理が行なわれるが、過層が次
第に固形分でつまって来ると、装置本体１の下部の水圧
が上昇し、逆洗開始管９内の水位は、上記装置本体１の
水面（満水位）以上に押上げられる。この水位が逆洗開
始管９の最高部を越えると、サイフォンが作用して、装
置本体１内の水はまず逆洗開始管９を経て切換え層６内
に流入し、逆洗が開始される。これにより切換え層６の
水位が上昇し、ボールタップ12が上昇して栓13が開き、
ついで逆洗浄排水管11からも水が切換え層６内に導びか
れる。これにより装置本体１の水位が下り、サイフォン
プレーカ10の先端より下となると、逆抗開始管９に空気
が吸引されサイフォンが作動しなくなる。しかし、栓13
は開放された状態となっているので、逆洗浄排水管11に
よる排水は継続され、装置本体１の水位は次第に低下す
る。この間、装置本体１の水位の低下と、散気部材より
吹込まれる空気によって、過材26の層は撹拌されなが
ら降下し、過材が球形で付着物が分離し易いことと相
俟って、付着した懸濁物が除去される。これらの懸濁物
は水とともに切換え槽６に移送される。装置本体１の水
位が低下すると、逆洗浄排水管11による排水量は次第に
減少し、水位調節排水管８より汚泥濃縮槽７に送られる
水量より少なくなると、切換え槽６の水位が低下し、ボ
ールタップ12が降下して栓13が閉じられる。The water treatment is performed as described above, but when the overlayer gradually becomes clogged with solids, the water pressure in the lower part of the apparatus main body 1 increases, and the water level in the backwashing start pipe 9 becomes higher than that of the apparatus main body 1. It is pushed up above the water surface (full water level). When the water level exceeds the highest part of the backwashing start pipe 9, a siphon operates, and water in the apparatus body 1 first flows into the switching layer 6 through the backwashing start pipe 9, and the backwashing is started. . As a result, the water level of the switching layer 6 rises, the ball tap 12 rises, and the plug 13 opens,
Then, water is also guided from the backwash drainage pipe 11 into the switching layer 6. As a result, when the water level of the apparatus main body 1 falls and becomes lower than the tip of the siphon breaker 10, air is sucked into the counter starting tube 9 and the siphon does not operate. But stopper 13
Is in an open state, the drainage by the backwash drainage pipe 11 is continued, and the water level of the apparatus body 1 gradually decreases. During this time, the layer of the excess material 26 descends while being agitated by the lowering of the water level of the apparatus main body 1 and the air blown from the diffusing member, and the excess material is spherical and the attached matter is easily separated. The attached suspension is removed. These suspensions are transferred to the switching tank 6 together with the water. When the water level in the apparatus main body 1 decreases, the amount of water discharged from the backwash drainage pipe 11 gradually decreases. When the water level becomes smaller than the amount of water sent from the water level adjustment drainage pipe 8 to the sludge concentration tank 7, the water level in the switching tank 6 decreases, and Falls and the stopper 13 is closed.
このようにして逆洗が終了すると、再び装置本体１に
は被処理水がたまり、処理が開始される。When the backwash is completed in this way, the water to be treated is accumulated in the apparatus body 1 again, and the processing is started.
上記逆洗操作において、装置本体１に対する被処理
水、空気は定状常態で供給されており、切換え槽６から
水調節排水管８を介して流出する水の受槽があれば、全
く人手を要さずに水処理が行なわれる。In the backwashing operation, the water to be treated and the air to the apparatus main body 1 are supplied in a regular state, and if there is a receiving tank of the water flowing out from the switching tank 6 through the water control drainage pipe 8, no manual operation is required. Instead, water treatment is performed.
この装置によって水処理を行なった場合の懸濁物と溶
解成分（有機物）の除去はほぼ第１表のようになる。The removal of suspended matter and dissolved components (organic substances) when water treatment is performed by this apparatus is almost as shown in Table 1.
なお、過速度を早くした場合には、接触曝気部28で
の生物処理が十分に行えなくなるが、この場合処理水を
活性汚泥槽等に送り、生物処理を行ってもよい。 When the overspeed is increased, the biological treatment in the contact aeration unit 28 cannot be performed sufficiently. In this case, the biological treatment may be performed by sending the treated water to an activated sludge tank or the like.
実施例１ 生下水をスクリーン処理した水を被処理水として、第
１図に示す装置を用いて水処理を行なった。Example 1 The water treatment was performed using the apparatus shown in FIG.
装置各部の寸法、容量を第２表に示す。 Table 2 shows the dimensions and capacities of each part of the device.
また下水の過を行なうため、過材26の粒径は大き
くする必要があり、5.5mm径のものを用いた。 Further, in order to carry out the sewage treatment, it is necessary to increase the particle size of the filler material 26, and a material having a diameter of 5.5 mm was used.
被処理水の供給量を変え、過層を通過した水（以
下、過処理水という）および処理水４中の各種成分の
経時変化を、第３表、第４表および、第３図〜第８図に
示した。なおCODはMnによる測定値（以下同じ）で示し
た。By changing the supply amount of the water to be treated, the water which passed through the upper layer (hereinafter referred to as over-treated water) and the time-dependent changes of various components in the treated water 4 are shown in Table 3, Table 4, and FIGS. This is shown in FIG. Note that COD is shown by a measured value of Mn (the same applies hereinafter).
また、逆洗水量は5m3/回で、被処理水の導入速度にか
かわらずほぼ一定とした。The amount of backwash water was 5 m 3 / time, and was substantially constant regardless of the introduction speed of the water to be treated.
第４表より明らかなように、過処理能力は、通水速
度を変えてもほぼ安定している。 As is clear from Table 4, the overtreatment capacity is almost stable even when the water flow rate is changed.
但し、接触曝気部の処理能力は、通水速度により大き
く左右される。通水速度が小さいと、接触曝気槽におけ
る滞留時間が長くなるので溶解成分の除去率は大きくな
る。しかし通水速度が大きいと過層を通過した水の性
質と比べて、大幅な生物処理効果は得られない。However, the processing capacity of the contact aeration unit greatly depends on the water flow rate. If the water flow rate is low, the residence time in the contact aeration tank becomes longer, so that the removal rate of dissolved components increases. However, when the water flow rate is high, a significant biological treatment effect cannot be obtained as compared with the properties of water that has passed through the upper layer.
また、本発明の装置による、過材26の逆洗による洗
浄効果を第９図に示す。図より、逆洗回数が増加して
も、過材の初期透水係数が減少していないことから、
逆洗による過材の洗浄が充分に行なわれていることが
わかる。FIG. 9 shows the cleaning effect of the apparatus of the present invention by backwashing the excess material 26. From the figure, even if the number of backwashing increases, since the initial permeability of excess wood does not decrease,
It can be seen that excess material has been sufficiently washed by backwashing.
比較例１ 実施例１と比較するため、実施例１の過材の寸法と
同じ5.5mm径の砂を過材として、スクリーンを通した
生下水を被処理水とし75m3/dの速度で下向流で過を行
なった。結果を第５表に示す。なお比較のため、本発明
の装置における過材を用いて過した値（第４表、通
水速度75m3/d）を併記した。Comparative Example 1 For comparison with Example 1, the same 5.5 mm diameter sand as the excess material of Example 1 was used as excess material, and raw sewage passed through a screen was treated as water to be treated, and the speed was reduced at a rate of 75 m 3 / d. Passage was made in countercurrent. The results are shown in Table 5. For comparison, the values (Table 4, water flow rate of 75 m 3 / d) passed by using the excess material in the apparatus of the present invention are also shown.
〔発明の効果〕 以上述べたように本発明に係る水処理装置は、水処理
用ユニットを縦方向に配置することによって、装置を設
置する敷地が狭くてすみ、また、逆洗開始管、切換え
槽、逆洗浄排水管等の設置により、自動的な水処理が可
能となる。 [Effects of the Invention] As described above, the water treatment apparatus according to the present invention has a water treatment unit arranged in the vertical direction, so that the site where the apparatus is installed can be narrow, and the backwashing start pipe and switching can be performed. By installing a tank, a backwash drainage pipe, etc., automatic water treatment becomes possible.
また、浮力のある過材を用い、過層下部より連続
曝気を行なっているので、過層の局所的な閉塞が解消
され、内部過を促進し、過層全体が有効に使用さ
れ、懸濁物の捕捉総量が増大し、一回の過時間が長く
なり、さらに逆洗による過材の洗浄が行なわれ易くな
る。In addition, the use of buoyant excess material and continuous aeration from the lower portion of the upper layer eliminates the local blockage of the upper layer, promotes internal excess, effectively uses the entire upper layer, The total amount of trapped substances increases, the time required for one operation becomes longer, and the excess material can be easily washed by backwashing.
本発明の装置は、生下水の処理では一次処理に使わ
れ、処理水はさらに活性汚泥法などで処理される。ま
た、２次処理水の過に使用すれば、清澄な３次処理水
としてトイレ洗浄水等に再利用可能である。雨水、河川
水等は本発明の装置で処理すれば格段に浄化され、冷却
水その他に利用可能となる。The apparatus of the present invention is used for primary treatment in the treatment of raw sewage, and the treated water is further treated by an activated sludge method or the like. Further, if used in excess of secondary treatment water, it can be reused as clean tertiary treatment water for toilet washing water and the like. Rainwater, river water, etc., are treated by the apparatus of the present invention so that they are significantly purified and can be used for cooling water and the like.
第１図（ａ）（ｂ）および第２図は、本発明に係る水処
理装置の一実施例を示すもので、第１図（ａ）は全体を
示す図、第１図（ｂ）は第１図（ａ）のＩ−Ｉ線矢視断
面図、第２図は、切換え槽に設けられた切換装置のボー
ルタップ、および栓の作動を説明する図、第３図ないし
第８図は、実施例１の運転による各測定値の経時変化を
それぞれ示すもので、第３図はSS濃度、第４図はCOD、
第５図はSS、CODの除去率、第６図は通水速度、第７図
は過層内の損失水頭、第８図はSSとCOD成分の捕捉量
を示す図、第９図は逆洗浄回数と、逆洗浄を終了し、定
常運転に入った直後における過層の透水係数との関係
を示す図である。 １……装置本体、２……ポンプ、３……導入管、４……
処理水、５……溢流管、６……逆洗浄排出管切換え槽
（切換え槽）、７……汚泥濃縮槽、８……水位調節用排
出管、９……逆洗開始管（サイフォン管）、9a……最高
部、10……サイフォンブレーカ、11……逆洗浄排水管、
12……ボールタップ、13……栓、14……ストッパ、21…
…傾斜板、22……ブロワー、23……散気部材、24……下
グリッド、25……上グリッド、26……浮上性過材（
過材）、27……集気部、27a………放出口、28……接触
曝気部、28a……エアーリフト、28b……接触材。FIGS. 1 (a), (b) and 2 show an embodiment of the water treatment apparatus according to the present invention, wherein FIG. 1 (a) shows the whole and FIG. 1 (b) FIG. 1 (a) is a cross-sectional view taken along the line II, FIG. 2 is a diagram for explaining the operation of a ball tap and a plug of a switching device provided in a switching tank, and FIGS. FIG. 3 shows a time-dependent change of each measured value by the operation of Example 1. FIG. 3 shows SS concentration, FIG. 4 shows COD,
Fig. 5 shows the removal rate of SS and COD, Fig. 6 shows the water flow rate, Fig. 7 shows the head loss in the upper layer, Fig. 8 shows the amount of trapped SS and COD components, and Fig. 9 shows the reverse. It is a figure which shows the relationship between the frequency | count of washing | cleaning, and the hydraulic conductivity of the upper layer immediately after completing backwashing and starting a steady operation. 1 ... device main body, 2 ... pump, 3 ... introduction pipe, 4 ...
Treated water, 5 overflow pipe, 6 backwash discharge pipe switching tank (switching tank), 7 sludge thickening tank, 8 water level control discharge pipe, 9 backwash start pipe (siphon pipe) ), 9a ... Highest part, 10 ... Siphon breaker, 11 ... Backwash drainage pipe,
12 ball tap, 13 stopper, 14 stopper, 21
… Slope plate, 22 …… Blower, 23 …… Diffusing member, 24 …… Lower grid, 25 …… Upper grid, 26 …… Floating material (
Excess material), 27 ... air collecting part, 27a ... outlet, 28 ... contact aeration part, 28a ... air lift, 28b ... contact material.
Claims (2)
部、散気部材、浮上性過部が配置されるとともに、浮
上性過部上方に処理水貯留部が形成され、塔底部に被
処理水導入部が、塔頂部に処理水導出部が設けられた装
置本体と、 この装置本体の下部の側方に並列して設置された逆洗浄
排出管切換え槽と、 この逆洗浄排出管切換え槽の水位の上昇によって開栓
し、降下によって閉栓する栓を有する逆洗浄排出管切換
え装置と、 装置本体の塔底部に一端が接続され、装置本体の満水位
よりも高い位置を経て、他端が上記逆洗浄排出管切換え
槽に開口する逆洗開始管と、 この逆洗開始管の最高部近傍に一端が接続され、他端が
装置本体の満水位よりも低い位置で開口するサイフォン
ブレーカと、 上記逆洗開始管の塔底部側に一端が接続され、他端が前
記逆洗浄排出管切換え装置の栓に接続される逆洗浄排出
管を有することを特徴とする水処理装置。An inclined plate portion, a diffusing member, and a floating portion are disposed in the tower body from below to above, and a treated water storage portion is formed above the floating portion, and a treated water storage portion is formed at the bottom of the tower. An apparatus main body in which a treated water introduction section is provided with a treated water outlet section at the top of the tower; a reverse cleaning / exhaust pipe switching tank installed in parallel on the lower side of the apparatus main body; A backwash discharge pipe switching device having a stopper that opens when the water level of the switching tank rises and closes when the water level rises, and one end connected to the bottom of the tower of the device main body and passes through a position higher than the full water level of the device main body. A backwashing start pipe having an end opening to the backwashing discharge pipe switching tank; a siphon breaker having one end connected near the highest portion of the backwashing start pipe and the other end opening at a position lower than the full water level of the apparatus main body. One end is connected to the bottom side of the backwash start pipe, There the water treatment apparatus characterized by having a backwash discharge pipe connected to the plug of the backwash discharge pipe switching device.
配置したことを特徴とする請求項（１）記載の水処理装
置。2. The water treatment apparatus according to claim 1, wherein a contact aeration member is disposed in the treated water storage section of the apparatus main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18974289A JP2766881B2 (en) | 1989-07-21 | 1989-07-21 | Water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18974289A JP2766881B2 (en) | 1989-07-21 | 1989-07-21 | Water treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0352607A JPH0352607A (en) | 1991-03-06 |
| JP2766881B2 true JP2766881B2 (en) | 1998-06-18 |
Family
ID=16246421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18974289A Expired - Lifetime JP2766881B2 (en) | 1989-07-21 | 1989-07-21 | Water treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2766881B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011139089A2 (en) * | 2010-05-06 | 2011-11-10 | 주식회사 두합 크린텍 | Energy-saving natural downflow type of clean-water and sewage/wastewater treatment device |
| KR101037888B1 (en) * | 2010-08-05 | 2011-05-30 | 주식회사두합크린텍 | Hybrid wastewater treatment equipment with sedimentation, biological degradation, filtration, phosphorus removal and uv disinfection system in a reactor |
| CN103480191B (en) * | 2013-09-27 | 2015-01-14 | 常熟市华能水处理设备有限责任公司 | Efficient pretreater for condensed water |
-
1989
- 1989-07-21 JP JP18974289A patent/JP2766881B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0352607A (en) | 1991-03-06 |
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