JP2003117572A - Aerobic treating vessel having filter chamber on one block of upper part and sewage septic tank - Google Patents
Aerobic treating vessel having filter chamber on one block of upper part and sewage septic tankInfo
- Publication number
- JP2003117572A JP2003117572A JP2001322251A JP2001322251A JP2003117572A JP 2003117572 A JP2003117572 A JP 2003117572A JP 2001322251 A JP2001322251 A JP 2001322251A JP 2001322251 A JP2001322251 A JP 2001322251A JP 2003117572 A JP2003117572 A JP 2003117572A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- tank
- filter bed
- bed
- aerobic
- 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
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)
- Treatment Of Biological Wastes In General (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、し尿やその他の生
活排水、これらの合併汚水（以下、汚水という）を物理
的・生物化学的に処理する汚水浄化槽、及びその汚水浄
化槽に好適に組み込まれる好気処理槽に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitably incorporated into human waste and other domestic wastewater, a wastewater purification tank for physically and biochemically treating combined wastewater thereof (hereinafter referred to as wastewater), and the wastewater purification tank. Regarding an aerobic treatment tank.
【０００２】[0002]
【従来の技術】汚水浄化槽における好気処理槽の後段に
別個に配置され、ＳＳと呼ばれる固形物（浮遊懸濁物
質）の濾過・除去する濾過槽は、従来から種々知られて
いる。これらのうちの一つを図６に示した。この濾過槽
内には、水より重い濾材を充填した濾過床１０が形成さ
れていて、通常は、上方から被処理液が供給され、濾過
床１０を通過した濾液は下部移流口から隣接する処理水
槽１１へ入り込み、溢れ出た液は消毒されて系外へ排出
される。濾過床１０を逆洗（洗浄）する場合は、図６
（ｂ）に示すように、濾過床１０の下方に配置された逆
洗空気管（図示せず）から空気を送り、濾過床１０の濾
材を撹乱させて濾材に捕捉されたＳＳを剥離させるとと
もに、処理水槽１１中の液を電動ポンプ３３により濾過
床１０の下方へ供給しながら、洗浄排水を排出口６から
溢れ出させる。このとき、濾過床１０における液流は、
通常運転時（すなわち、濾過時）で下向流であり、逆洗
時では上向流である。2. Description of the Related Art Various filter tanks, which are separately disposed after the aerobic treatment tank in a sewage purification tank and which filter and remove solid matter (suspended suspended solids) called SS, have been conventionally known. One of these is shown in FIG. A filter bed 10 filled with a filter material heavier than water is formed in this filter tank, and the liquid to be treated is usually supplied from above, and the filtrate passed through the filter bed 10 is treated from the lower advection port to an adjacent treatment tank. The liquid that has entered the water tank 11 and overflowed is sterilized and discharged to the outside of the system. When backwashing (washing) the filter bed 10, FIG.
As shown in (b), air is sent from a backwash air pipe (not shown) arranged below the filter bed 10 to disturb the filter material of the filter bed 10 to separate SS trapped in the filter material. While supplying the liquid in the treated water tank 11 to the lower side of the filtration bed 10 by the electric pump 33, the cleaning waste water overflows from the discharge port 6. At this time, the liquid flow in the filtration bed 10 is
It is a downward flow during normal operation (that is, during filtration) and an upward flow during backwash.
【０００３】[0003]
【発明が解決しようとする課題】このように好気処理槽
と濾過槽とをそれぞれ別槽として並置すると、これら処
理槽及び濾過槽の占める面積は大きめになり、したがっ
て、汚水浄化槽全体の占める面積が大きめになる。本発
明は、装置全体を少しでも小さくする好気処理槽、ある
いは、汚水浄化槽を提供することを目的とする。When the aerobic treatment tank and the filtration tank are juxtaposed as separate tanks in this way, the areas occupied by the treatment tank and the filtration tank become large, and therefore the area occupied by the entire wastewater purification tank. Becomes larger. An object of the present invention is to provide an aerobic treatment tank or a sewage purification tank that makes the entire apparatus as small as possible.
【０００４】[0004]
【課題を解決するための手段】上記目的を達するため
に、本発明者らは、好気処理槽の槽内の一画に小室の濾
過室を備えることに着想し、種々検討して本発明を完成
した。すなわち、本発明は、濾材が充填された濾過床１
０及びその濾過床の下部又は下方に配された散気部材９
からなる濾過部８と、その濾過部８に隣接して下部で移
流口１８を介して互いに連通する濾液貯め部１１と、前
記濾過部８又は濾液貯め部１１の下部（又は底部）にて
接続される洗浄排水排出装置１２とから成る小室の濾過
室７が、（反応用）散気部材１４が配された好気濾床
（生物反応床）１５をもつ一回り大きい槽の上部一画に
配されてなることを特徴とする好気処理槽である。In order to achieve the above object, the inventors of the present invention conceived that a small filtration chamber is provided in one part of the aerobic treatment tank, and various studies were conducted to realize the present invention. Was completed. That is, the present invention is directed to a filter bed 1 filled with a filter medium.
0 and the diffusing member 9 disposed below or below the filter bed
And a filtrate storage section 11 which is adjacent to the filtration section 8 and communicates with each other via an advection port 18 at a lower portion, and is connected to the filtration section 8 or a lower portion (or a bottom portion) of the filtrate storage section 11. The small filtration chamber 7 consisting of the cleaning wastewater discharge device 12 and the above-mentioned cleaning wastewater discharge device 12 is provided in the upper part of a larger tank having an aerobic filter bed (biological reaction bed) 15 on which (reaction) diffuser members 14 are arranged. It is an aerobic treatment tank characterized by being arranged.
【０００５】ここで、通常運転時は、上記好気処理槽に
おける液は、通常、好気濾床（生物反応床）１５を上向
きに流れ、濾過床１０を下向きに流れる。また、逆洗時
においては、液は通常は濾過床１０を下向きに流れる。Here, during normal operation, the liquid in the aerobic treatment tank normally flows upward through the aerobic filter bed (biological reaction bed) 15 and downward through the filter bed 10. Further, during backwashing, the liquid usually flows downward through the filter bed 10.
【０００６】本発明は、上記濾過室付きの好気処理槽を
組み込んだ汚水浄化槽にも関する。The present invention also relates to a wastewater purification tank incorporating the aerobic treatment tank with the filtration chamber.
【０００７】[0007]
【作用】本発明の好気処理槽では、槽の上部一画に濾過
室７を組み込んでいるので、好気処理槽をコンパクトに
することができる。汚水の流入を止め、洗浄用散気部材
９から散気させると濾過床１０に捕捉されていたＳＳは
濾材から遊離し、このとき、洗浄排水排出装置１２を稼
動させるとＳＳ含みの洗浄排水は、濾過室１０の下部か
ら引き抜くことができる。また、洗浄排水が滞留する部
分が無いので、洗浄排水はほぼその全量が引き抜くこと
ができる。また、洗浄排水排出装置１２によって、洗浄
排水を濾過室１０よりも上方へ吸い上げて前槽へ戻すの
で、洗浄排水を貯留させる槽は不要であり、戻す際の移
送も容易である。In the aerobic treatment tank of the present invention, since the filtration chamber 7 is incorporated in the upper part of the tank, the aerobic treatment tank can be made compact. When the inflow of sewage is stopped and air is diffused from the cleaning air diffuser 9, the SS trapped in the filter bed 10 is released from the filter medium. At this time, when the cleaning drainage device 12 is operated, the cleaning drainage containing SS is removed. It can be pulled out from the lower part of the filtration chamber 10. Further, since there is no portion where the cleaning drainage stays, almost all of the cleaning drainage can be extracted. Further, since the cleaning drainage device 12 sucks the cleaning drainage upward from the filtration chamber 10 and returns it to the previous tank, a tank for storing the cleaning drainage is unnecessary, and the transfer when returning it is easy.
【０００８】[0008]
【発明の実施の形態】以下、図面を参照しながら本発明
を更に具体的に説明する。図１は、本発明に係る一例の
濾過室付き好気処理槽で、（ａ）は平面図、（ｂ）は概
略断面図である。図１から分かるように、濾過室７は、
好気濾床１５をもつ一回り大きい好気処理槽１３の槽内
の上部一画に（かつ、右側すなわち後流側に）偏在して
配されており、その濾過室７は、濾過部８と濾液貯め部
（処理水室）１１と洗浄排水排出装置１２とから成って
いる。ここで、濾過部８は濾材を充填した濾過床１０と
濾過床１０の下方に配置された洗浄用散気部材９とで構
成され、また、上記濾過床１０は液（排水）を通過させ
るが濾材を通過させない上抑止部材１９と下抑止部材２
０との間に充填された濾材を挟む形で形成されている。
更に、濾過部８は（下部の）移流口１８を介して隣接す
る濾液貯め部（処理水室）１１に連通しているほか、そ
の底部の一部はエアリフトポンプ１２の吸込口となって
いる。また、散気部材９及びエアリフトポンプ１２への
空気供給はブロワ１７を介して行なっている。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described more specifically with reference to the drawings. FIG. 1 is an aerobic treatment tank with a filtration chamber according to an example of the present invention, (a) is a plan view, and (b) is a schematic sectional view. As can be seen from FIG. 1, the filtration chamber 7 is
The larger aerobic treatment tank 13 having the aerobic filter bed 15 is arranged unevenly in the upper part of the tank (and on the right side, that is, on the downstream side). And a filtrate storage unit (treated water chamber) 11 and a cleaning drainage device 12. Here, the filter section 8 is composed of a filter bed 10 filled with a filter medium and a cleaning air diffusing member 9 arranged below the filter bed 10. Further, although the filter bed 10 allows liquid (drainage) to pass therethrough. The upper restraining member 19 and the lower restraining member 2 which do not pass the filter medium
It is formed such that the filled filter medium is sandwiched between 0 and 0.
Further, the filtration part 8 communicates with the adjacent filtrate storage part (treated water chamber) 11 via the (lower) advection port 18, and a part of the bottom part thereof serves as an intake port of the air lift pump 12. . Air is supplied to the air diffuser 9 and the air lift pump 12 via a blower 17.
【０００９】好気処理槽内に配置する濾過室７の位置
は、好気処理槽内の上部一画であれば図１のような配置
に限らず、図２や図３のような配置（平面図）でも構わ
ない。The position of the filtration chamber 7 arranged in the aerobic treatment tank is not limited to the arrangement shown in FIG. It may be a plan view).
【００１０】濾過床１０に充填する濾材は、固形物（Ｓ
Ｓ）を捕捉するために使用するものであり、水中で浮上
する浮上性濾材でも、水中で沈降する沈降性濾材でもよ
い。好ましくは、沈降性濾材である。濾材には、例え
ば、ポリエチレン、ポリプロピレン等のポリオレフィン
系樹脂、ポリスチレン等の材料を粒状、塊状、筒状、網
状、棒状、繊維塊状等、更には多孔質状等に成形、加工
し、必要に応じて比重調整したものを用いることができ
る。濾材の大きさとしては、２〜３０ｍｍが好ましく、
より好ましくは５〜１５ｍｍである。このような大きさ
にすることにより、流入液の必要通過抵抗、ＳＳの捕捉
性能、濾過継続時間等を確保できる。The filter medium to be packed in the filter bed 10 is a solid material (S
It is used for capturing S), and may be a floatable filter material that floats in water or a sedimentable filter material that sinks in water. Preferred is a sedimentable filter medium. The filter medium may be, for example, a polyolefin resin such as polyethylene or polypropylene, or a material such as polystyrene, which is molded and processed into a granular shape, a lump shape, a cylindrical shape, a net shape, a rod shape, a fiber lump shape, or a porous shape. It is possible to use those whose specific gravity has been adjusted. The size of the filter medium is preferably 2 to 30 mm,
More preferably, it is 5 to 15 mm. With such a size, the required passage resistance of the inflow liquid, the SS trapping performance, the filtration duration, and the like can be secured.
【００１１】エアリフトポンプ１２は、濾過床の洗浄時
の洗浄排水を排出させるものであり、消費電力が小さく
故障が少ないことから好ましく用いられる。エアリフト
ポンプの吸込口２１は濾過室７の下部又は底部であり、
下抑止部材２０よりも下方であればよい。好ましくは、
濾過室１０の底部の略中央部である。洗浄排水を効果的
に（すなわち、残量少なく）引抜くことができるからで
ある。The air lift pump 12 is used to discharge cleaning waste water at the time of cleaning the filter bed, and is preferably used because it consumes less power and has less trouble. The suction port 21 of the air lift pump is the lower part or the bottom part of the filtration chamber 7,
It may be below the lower restraint member 20. Preferably,
It is a substantially central portion of the bottom of the filtration chamber 10. This is because the cleaning waste water can be effectively withdrawn (that is, the remaining amount is small).
【００１２】エアリフトポンプ１２の揚水管内には空気
管が内挿され（図示省略。空気管は揚水管の外側に配置
させることもできる。）、ブロワ１７から空気管に空気
が供給される。An air pipe is inserted in the pumping pipe of the air lift pump 12 (not shown; the air pipe may be arranged outside the pumping pipe), and air is supplied from the blower 17 to the air pipe.
【００１３】なお、エアリフトポンプの代わりに電動ポ
ンプ等の洗浄排水排出装置を用いることもできる。濾材
が沈降性濾材で、濾過床の逆洗時に濾材が流出する心配
がない場合は、上抑止部材１９を省くことができる。ま
た、（洗浄用）散気部材９は下抑止部材２０の下方に限
らず、下抑止部材２０の直上に配置させてもよい。濾液
貯め部（処理水室）１１の形状は、特に限定されない。A cleaning drainage device such as an electric pump may be used instead of the air lift pump. If the filter medium is a sedimentary filter medium and there is no concern that the filter medium will flow out during backwashing of the filter bed, the upper restraining member 19 can be omitted. Further, the (cleaning) air diffusing member 9 is not limited to be disposed below the lower restraining member 20, and may be disposed immediately above the lower restraining member 20. The shape of the filtrate storage unit (treated water chamber) 11 is not particularly limited.
【００１４】図４は、本発明に係る濾過室付き好気処理
槽の運転状況を説明する図（概略断面図）で、（ａ）は
通常運転時、（ｂ）は濾過室の逆洗時である。好気処理
槽１３には、汚水流入部１６、微生物によって好気処理
を行う好気濾床（生物反応床）１５、この好気濾床１５
の下部又は下方に配置される（反応用）散気部材１４及
び濾過室７が設けられていて、（反応用）散気部材１４
にはブロワ１７から空気が供給される。FIG. 4 is a diagram (schematic cross-sectional view) for explaining the operating condition of the aerobic treatment tank with a filtration chamber according to the present invention. FIG. 4 (a) is for normal operation, and FIG. Is. The aerobic treatment tank 13 has a wastewater inflow portion 16, an aerobic filter bed (biological reaction bed) 15 for aerobic treatment with microorganisms, and the aerobic filter bed 15.
The (reaction) air diffuser 14 and the filtration chamber 7 arranged below or below the
Air is supplied from the blower 17.
【００１５】また、好気濾床１５内には微生物付着材が
充填されている。ここで、好気濾床１５は固定床であっ
ても流動床（いずれも浸漬濾床法）であってもよい。な
お、好気濾床の代わりに、微生物付着材を充填しない活
性汚泥法を用いることができるが、好ましくは、前記浸
漬濾床法である。The aerobic filter bed 15 is filled with a microorganism adhering material. Here, the aerobic filter bed 15 may be a fixed bed or a fluidized bed (both are immersion filter bed methods). It should be noted that an activated sludge method in which a microorganism adhering material is not filled can be used in place of the aerobic filter bed, but the immersion filter bed method is preferable.
【００１６】次に好気処理槽の運転を図４（ａ）（ｂ）
で説明する。
＜通常運転時＞汚水の処理は、次のようにして行われ
る。汚水は、図４（ａ）の実線矢印で示すとおり、好気
処理槽１３の上部から汚水流入部１６を経由して好気濾
床１５に入り、散気部材１４から吐出される空気で好気
的環境が維持される中、汚水中の有機物が好気濾床１５
に棲息した微生物によって好気処理（酸化分解）され
る。好気処理された液は槽の上部から濾過室７へ流入す
る。流入した液は、下向流となって濾過床１０を通り、
下部の移流口１８から濾液貯め部１１へ移流し、その
後、装置外へ流出する。濾過床１０を通過する間に、流
入液に含まれるＳＳは濾材に捕捉される。濾過床１０の
濾材が浮上性濾材の場合、その濾材は浮上し上抑止部材
１９で押さえられる形となる。Next, the operation of the aerobic treatment tank is shown in FIGS.
Described in. <During normal operation> Treatment of sewage is performed as follows. Sewage enters the aerobic filter bed 15 from the upper part of the aerobic treatment tank 13 via the sewage inflow part 16 as shown by the solid arrow in FIG. Organic matter in sewage is aerobic filter bed 15 while aerial environment is maintained.
Aerobic treatment (oxidative decomposition) by microorganisms living in the area. The aerobically treated liquid flows into the filtration chamber 7 from the upper part of the tank. The inflowing liquid becomes a downward flow and passes through the filter bed 10,
The liquid is admitted from the lower advection port 18 to the filtrate storage unit 11, and then flows out of the apparatus. While passing through the filter bed 10, SS contained in the inflow liquid is captured by the filter medium. When the filter medium of the filter bed 10 is a floatable filter medium, the filter medium floats and is pressed by the lifting restraining member 19.
【００１７】＜（濾過床の）逆洗時＞通常の運転（濾
過）を続けるとＳＳは濾過床１０の濾材中に蓄積し、濾
過床の濾過抵抗は徐々に大きくなる。これを解消するた
め濾過床１０を適宜逆洗する（図４（ｂ））。逆洗にあ
たっては、先ず液の流入を止め、更にブロワ１７からの
空気供給を（反応用）散気部材１４から（洗浄用）散気
部材９へと切り替える。濾過床１０は撹乱されて（又は
流動し）、捕捉されていたＳＳが濾材から剥離する。こ
の際、ブロワ１７からの空気をエアリフトポンプ１２の
揚水管内の空気管に吐出させると、その空気は揚水管と
空気管との間を上昇し、それに伴って洗浄排水は揚水管
の下部から吸引され、空気とともに揚水管上部へ揚水さ
れ（エアリフト作用）、好気処理槽１３よりも前段の槽
（濾過室７外）へ排出される。濾過室１０内の水位は徐
々に下降するとともに、濾過床内の液は濾過床を下向き
に流れる。このとき、好気処理槽１３中の水位も濾過室
１０内の水位の下降に合わせて下降する。<At the time of backwashing (of filtration bed)> When normal operation (filtration) is continued, SS accumulates in the filter material of the filtration bed 10, and the filtration resistance of the filtration bed gradually increases. In order to eliminate this, the filter bed 10 is appropriately backwashed (FIG. 4 (b)). In backwashing, first, the inflow of the liquid is stopped, and the air supply from the blower 17 is switched from the (reaction) diffuser member 14 to the (cleaning) diffuser member 9. The filter bed 10 is disturbed (or fluidized), and the captured SS is separated from the filter medium. At this time, when the air from the blower 17 is discharged to the air pipe in the pump pipe of the air lift pump 12, the air rises between the pump pipe and the air pipe, and the cleaning drainage is sucked from the lower part of the pump pipe accordingly. Then, the water is pumped to the upper part of the pumping pipe together with the air (air lift action), and is discharged to the tank (outside the filtration chamber 7) of the preceding stage to the aerobic treatment tank 13. The water level in the filtration chamber 10 gradually drops, and the liquid in the filtration bed flows downward in the filtration bed. At this time, the water level in the aerobic treatment tank 13 also drops in accordance with the drop in the water level in the filtration chamber 10.
【００１８】なお、エアリフトポンプ１２は、濾過室１
０内の水位が下抑止部材２０の下まで下がったときに停
止させてもよく、濾過室１０内がほぼ空になったところ
で停止させてもよい。好ましくは、濾過室１０内がほぼ
空になったところである。また、（洗浄用）散気部材９
からの空気の吐出は、濾過室１０内の水位が下抑止部材
２０を下回ったところで停止させてもよく、エアリフト
ポンプ１２の停止と合せて停止させてもよい。The air lift pump 12 is used in the filtration chamber 1
It may be stopped when the water level in 0 falls below the lower restraint member 20, or may be stopped when the inside of the filtration chamber 10 is almost empty. Preferably, the inside of the filtration chamber 10 is almost empty. In addition, the diffusing member 9 (for cleaning)
The air may be stopped when the water level in the filtration chamber 10 falls below the lower restraint member 20, or may be stopped together with the stop of the air lift pump 12.
【００１９】図５は、上記濾過室付き好気処理槽を組み
込んだ汚水浄化槽の一例（概略断面図）である。汚水浄
化槽２２は、上流側から沈降分離槽２３、汚泥濃縮槽２
４、浮上分離槽２５、好気処理槽１３、濾過室７及び消
毒槽２７で構成されている。浮上分離槽２５には、移流
液を後段の好気処理槽１３に定量移送させるエアリフト
ポンプ２８が設けられ、そのエアリフトポンプ２８へは
ブロワ２９から空気が供給される。好気処理槽１３の
（反応用）散気部材１４には、ブロワ２９から空気が供
給され、濾過室７から洗浄排水を引抜くエアリフトポン
プ１２には洗浄排水移送管３０が接続され、洗浄排水は
沈降分離槽２３の上部へ返送させるようになっている。
また、槽内の保守点検及び清掃を容易に行うことができ
るように、槽上部にはマンホール３１が設けてあり、そ
こにマンホールカバー３２が取り付けられている。FIG. 5 is an example (schematic cross-sectional view) of a wastewater purification tank incorporating the aerobic treatment tank with the filtration chamber. The sewage purification tank 22 includes a sedimentation separation tank 23 and a sludge thickening tank 2 from the upstream side.
4, the floating separation tank 25, the aerobic treatment tank 13, the filtration chamber 7, and the disinfection tank 27. The floating separation tank 25 is provided with an air lift pump 28 for quantitatively transferring the advected liquid to the aerobic treatment tank 13 in the subsequent stage, and air is supplied to the air lift pump 28 from a blower 29. Air is supplied from a blower 29 to the (reaction) diffuser member 14 of the aerobic treatment tank 13, and a cleaning drainage transfer pipe 30 is connected to an air lift pump 12 that draws cleaning drainage from the filtration chamber 7. Is to be returned to the upper part of the sedimentation separation tank 23.
Further, a manhole 31 is provided at the upper part of the tank and a manhole cover 32 is attached thereto so that maintenance and inspection and cleaning of the inside of the tank can be easily performed.
【００２０】ここで、汚泥濃縮槽２４においては汚水が
直接に流入しない構造なので、底部に貯まったＳＳは乱
されることが少なく、沈降分離槽２３から分離落下する
ＳＳを高濃度に蓄積させることができる。In the sludge thickening tank 24, since the wastewater does not directly flow into the sludge, the SS accumulated at the bottom is less likely to be disturbed, and the SS separated and falling from the settling separation tank 23 can be accumulated at a high concentration. You can
【００２１】なお、図５の汚水浄化槽２２においては、
上流側から沈降分離槽２３、汚泥濃縮槽２４、浮上分離
槽２５及び好気処理槽１３がこの順に配置されている
が、沈降分離槽２３及び汚泥濃縮槽２４の代わりにこれ
らのうちの１つの槽だけからなる沈降分離槽（又は夾雑
物除去槽）あるいは嫌気濾床槽とすることもできる。ま
た、浮上分離槽２５からエアリフトポンプ２８を省くこ
ともでき、更にはこの浮上分離槽を嫌気濾床槽にするこ
ともできる。In the sewage purification tank 22 of FIG.
Although the sedimentation separation tank 23, the sludge thickening tank 24, the flotation separation tank 25 and the aerobic treatment tank 13 are arranged in this order from the upstream side, one of these is used instead of the sedimentation separation tank 23 and the sludge thickening tank 24. It is also possible to use a sedimentation separation tank (or a contaminant removal tank) consisting of only a tank or an anaerobic filter bed tank. Further, the air lift pump 28 can be omitted from the floating separation tank 25, and the floating separation tank can be an anaerobic filter bed tank.
【００２２】汚水浄化槽２２を用いた汚水処理において
は、汚水（原水）は先ずＳＳを沈降分離させる沈降分離
槽２３に入り、ここで汚水に含まれる沈降性ＳＳ等を沈
降分離させる。移流液は浮上分離槽２５に入り、ここ
で、厨房排水、浴室排水、洗濯排水中の油脂分等の浮上
性の固液物（ＳＳ）を浮上・分離させる。In sewage treatment using the sewage purification tank 22, sewage (raw water) first enters a settling separation tank 23 for settling and separating SS, where settling SS and the like contained in sewage is settling and separating. The advancing liquid enters the floatation separation tank 25, and floats and separates floatable solid-liquid substances (SS) such as fats and oils in kitchen wastewater, bathroom wastewater, and laundry wastewater.
【００２３】次に、エアリフトポンプ２８によって槽内
液を定量的に好気処理槽１３へ移流させる。以降の好気
処理槽１３（濾過室７含み）での汚水の処理は、既に述
べたので省略する。濾過室７からの流出液は、薬筒２６
に接触しながら消毒槽２７に入る。そして、消毒され放
流水として系外に排出される。Next, the liquid in the tank is quantitatively transferred to the aerobic treatment tank 13 by the air lift pump 28. The subsequent treatment of sewage in the aerobic treatment tank 13 (including the filtration chamber 7) has already been described, and will be omitted. The effluent from the filtration chamber 7 is a medicine bottle 26.
While entering the disinfection tank 27. Then, it is sterilized and discharged as discharged water to the outside of the system.
【００２４】[0024]
【発明の効果】本発明の好気処理槽又は汚水浄化槽によ
れば、小室の濾過室を（好気処理槽の）槽内の上部一画
に取り込んで配しているので、装置全体の大きさを小型
化することができ、設置面積の狭い場所にも設置するこ
とができる。また、電動ポンプを設けることなく、濾過
室下部（又は底部）から逆洗後の槽内液のほぼ全量を簡
単に引抜くことができ、したがって効率的に濾過床を洗
浄できる。更には、配管やポンプ等の構成部品が単純な
ため、好気処理槽内に濾過室を組み込む作業が容易に行
える。According to the aerobic treatment tank or the sewage purification tank of the present invention, since the small filtration chamber is incorporated in the upper part of the tank (of the aerobic treatment tank) and arranged, the size of the entire apparatus is increased. The size can be reduced, and it can be installed in a place with a small installation area. Further, without providing an electric pump, almost all of the liquid in the tank after backwashing can be easily withdrawn from the lower part (or bottom part) of the filtration chamber, and thus the filtration bed can be efficiently washed. Furthermore, since the components such as the piping and the pump are simple, the work of incorporating the filtration chamber in the aerobic treatment tank can be easily performed.
【図１】本発明に係る一例の濾過室付き好気処理槽で、
（ａ）は平面図、（ｂ）は概略断面図。FIG. 1 is an aerobic treatment tank with a filtration chamber according to an example of the present invention,
(A) is a plan view and (b) is a schematic sectional view.
【図２】本発明に係る他の例の濾過室付き好気処理槽の
平面図。FIG. 2 is a plan view of another example of an aerobic treatment tank with a filtration chamber according to the present invention.
【図３】本発明に係るまた別の例の濾過室付き好気処理
槽の平面図。FIG. 3 is a plan view of another example of the aerobic treatment tank with a filtration chamber according to the present invention.
【図４】本発明の濾過室付き好気処理槽で、（ａ）は通
常運転時、（ｂ）は濾過室の逆洗時の概略断面図。FIG. 4 is a schematic cross-sectional view of the aerobic treatment tank with a filtration chamber of the present invention, in which (a) is a normal operation and (b) is a backwash of the filtration chamber.
【図５】本発明に係る汚水浄化槽の一例の概略断面図。FIG. 5 is a schematic cross-sectional view of an example of a wastewater purification tank according to the present invention.
【図６】従来例の濾過槽（下向流）の概略断面図を示
し、（ａ）は通常運転時、（ｂ）は濾過床の逆洗時の概
略断面図。FIG. 6 is a schematic cross-sectional view of a conventional filtration tank (downflow), in which (a) is a normal operation and (b) is a schematic cross-sectional view when the filter bed is backwashed.
６：排出口 ７：濾過室 ８：濾過部 ９：（洗浄用）散気部材 １０：濾過床 １１：処理水室（濾液貯め部） １２：エアリフトポンプ（洗浄排水排出装置） １３：（濾過室付き）好気処理槽 １４：（反応用）散気部材 １５：好気濾床（生物反応床） １６：汚水流入部 １７：ブロワ １８：移流口 １９：上抑止部材 ２０：下抑止部材 ２１：吸込口 ２２：汚水浄化槽 ２３：沈降分離槽 ２４：汚泥濃縮槽 ２５：浮上分離槽 ２６：薬筒 ２７：消毒槽 ２８：エアリフトポンプ ２９：ブロワ ３０：洗浄排水移送管 ３１：マンホール ３２：マンホールカバー ３３：：電動ポンプ 6: outlet 7: Filtration chamber 8: Filtration section 9: (for cleaning) air diffuser 10: filtration bed 11: Treated water chamber (filtrate storage part) 12: Air lift pump (cleaning drainage device) 13: Aerobic treatment tank (with filtration chamber) 14: (for reaction) air diffuser 15: Aerobic filter bed (biological reaction bed) 16: Sewage inflow section 17: Blower 18: Advection port 19: Upper restraining member 20: Lower restraining member 21: Suction port 22: Sewage septic tank 23: Sedimentation Separation Tank 24: Sludge Concentration Tank 25: Floating separation tank 26: Medicine cylinder 27: Disinfection tank 28: Air lift pump 29: Blower 30: Cleaning drainage transfer pipe 31: Manhole 32: Manhole cover 33 :: Electric pump
───────────────────────────────────────────────────── フロントページの続き (72)発明者 日比野 淳 茨城県下館市大字下江連1250番地 株式会 社日立ハウステック結城工場内 (72)発明者 山下 宏 茨城県下館市大字下江連1250番地 株式会 社日立ハウステック結城工場内 Ｆターム(参考） 4D003 AA01 AB02 BA02 CA01 CA02 DA07 DA08 DA09 DA18 DA19 DA22 EA01 EA15 EA18 EA19 EA30 FA10 4D027 AB06 AB12 AB14 4D041 BA02 BB06 BB08 BB09 BB10 BB12 BB29 BC02 BC11 BC14 BC33 BC34 CA04 CA08 CC08 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Jun Hibino 1250 Shimoeren, Shimodate City, Ibaraki Prefecture Stock Association Hitachi House Tech Yuki factory (72) Inventor Hiroshi Yamashita 1250 Shimoeren, Shimodate City, Ibaraki Prefecture Stock Association Hitachi House Tech Yuki factory F-term (reference) 4D003 AA01 AB02 BA02 CA01 CA02 DA07 DA08 DA09 DA18 DA19 DA22 EA01 EA15 EA18 EA19 EA30 FA10 4D027 AB06 AB12 AB14 4D041 BA02 BB06 BB08 BB09 BB10 BB12 BB29 BC02 BC11 BC14 BC33 BC34 CA04 CA08 CC08
Claims (3)
下部又は下方に配された散気部材からなる濾過部と、 その濾過部に隣接して下部で移流口を介して互いに連通
する濾液貯め部と、 前記濾過部又は濾液貯め部の下部にて接続される洗浄排
水排出装置とから成る濾過室が、好気濾床をもつ一回り
大きい槽の上部一画に配されてなる好気処理槽。1. A filter section comprising a filter bed filled with a filter medium and an air diffusing member arranged below or below the filter bed, and adjacent to the filter section, communicates with each other via an advection port at the bottom. A filtration chamber comprising a filtrate storage part and a washing drainage device connected at the bottom of the filtration part or the filtrate storage part is preferably arranged in an upper part of a larger tank having an aerobic filter bed. Air treatment tank.
れ、濾過床を下向きに流れ、逆洗時、液は濾過床を下向
きに流れる構造の請求項１の好気処理槽。2. The aerobic treatment tank according to claim 1, wherein the liquid flows upward through the aerobic filter bed during normal operation and flows downward through the filter bed, and during backwashing, the liquid flows downward through the filter bed.
浄化槽。3. A sewage purification tank comprising the aerobic treatment tank according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001322251A JP3975393B2 (en) | 2001-10-19 | 2001-10-19 | Wastewater septic tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001322251A JP3975393B2 (en) | 2001-10-19 | 2001-10-19 | Wastewater septic tank |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003117572A true JP2003117572A (en) | 2003-04-22 |
| JP2003117572A5 JP2003117572A5 (en) | 2004-09-30 |
| JP3975393B2 JP3975393B2 (en) | 2007-09-12 |
Family
ID=19139329
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001322251A Expired - Fee Related JP3975393B2 (en) | 2001-10-19 | 2001-10-19 | Wastewater septic tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006116463A (en) * | 2004-10-22 | 2006-05-11 | Kubota Corp | Operation method for sewage treatment device, and sewage treatment device |
| JP2008012465A (en) * | 2006-07-07 | 2008-01-24 | Hitachi Housetec Co Ltd | Water treatment apparatus |
| AT524853A4 (en) * | 2021-09-22 | 2022-10-15 | Fishroom Rath Stefan E U | Filter system for cleaning water |
-
2001
- 2001-10-19 JP JP2001322251A patent/JP3975393B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006116463A (en) * | 2004-10-22 | 2006-05-11 | Kubota Corp | Operation method for sewage treatment device, and sewage treatment device |
| JP2008012465A (en) * | 2006-07-07 | 2008-01-24 | Hitachi Housetec Co Ltd | Water treatment apparatus |
| JP4702748B2 (en) * | 2006-07-07 | 2011-06-15 | 株式会社ハウステック | Water treatment equipment |
| AT524853A4 (en) * | 2021-09-22 | 2022-10-15 | Fishroom Rath Stefan E U | Filter system for cleaning water |
| AT524853B1 (en) * | 2021-09-22 | 2022-10-15 | Fishroom Rath Stefan E U | Filter system for cleaning water |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3975393B2 (en) | 2007-09-12 |
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