JP2002239570A - Apparatus for recycling waste water - Google Patents

Apparatus for recycling waste water

Info

Publication number
JP2002239570A
JP2002239570A JP2001038585A JP2001038585A JP2002239570A JP 2002239570 A JP2002239570 A JP 2002239570A JP 2001038585 A JP2001038585 A JP 2001038585A JP 2001038585 A JP2001038585 A JP 2001038585A JP 2002239570 A JP2002239570 A JP 2002239570A
Authority
JP
Japan
Prior art keywords
tank
wastewater
activated sludge
waste water
treatment
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
Application number
JP2001038585A
Other languages
Japanese (ja)
Inventor
Yoshifumi Matsuda
芳文 松田
Akihiro Ueda
明弘 上田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP2001038585A priority Critical patent/JP2002239570A/en
Publication of JP2002239570A publication Critical patent/JP2002239570A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

PROBLEM TO BE SOLVED: To provide a waste water recycling apparatus capable of reusing waste water, which can produce water with good quality, reusable for toilet, for garden watering in a quantity required at a low cost, require a small installation area, can be easily installed, and can be placed even in a region using a septic tank. SOLUTION: A waste water treatment apparatus comprises a foreign substance removing tank for removing foreign substances in inflow waste water, an activated sludge treatment tank for filtering waste water from the foreign substance removing tank with a separation membrane while aerobically treating the waste water with activated sludge, a storage tank for storing the treated water from the activated sludge treatment tank, a biomembrane treatment tank for aerobically treating the waste water from the foreign substance removing tank with microorganisms fixed on a contact material, a settling tank for precipitating the solid content in the treated water from the biomembrane treatment tank, and a sterilization tank for sterilizing the supernatant liquid from the settling tank. The treated water stored in the storage tank is recycled, and the waste water treated in the biomembrane treatment tank is discharged.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、家庭からの排水を
再利用することを目的とした排水処理装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wastewater treatment apparatus for reusing wastewater from homes.

【0002】[0002]

【従来の技術】従来、家庭からの生活系排水は、下水道
地域では未処理のまま再利用されずに下水道等に放流さ
れるか、浄化槽地域では合併処理浄化槽で放流基準まで
処理してから河川等に放流されるのが一般的である。し
かしながら、近年水事情が悪化する中で、家庭からの生
活系排水の内、トイレ排水や台所排水を除いた比較的汚
濁成分の少ない排水を処理した後に再利用するシステム
が提案されている。
2. Description of the Related Art Conventionally, domestic wastewater from households is discharged to sewerage or the like without being treated and reused in a sewerage area, or in a septic tank area, treated to a discharge standard in a combined treatment septic tank and then discharged to a river. It is general that the water is discharged to the like. However, in recent years, as the water situation has worsened, a system has been proposed in which domestic wastewater from households, excluding toilet wastewater and kitchen wastewater, is treated with relatively less polluting components and then reused.

【0003】例えば、特開2000−279980号公
報には、比較的生物的酸素要求量(BOD)や懸濁物質
(SS)濃度が低い、トイレ排水と台所排水とを除いた
生活排水を、高分子有機化合物又はセラミックを素材と
した板状や中空糸状等の形状をした分離膜を浸漬した、
活性汚泥と呼ばれる泥状の微生物をためた槽内に流入さ
せ、活性汚泥により有機物を分解し、分離膜により固液
分離し、その処理水を殺菌後、トイレ洗浄水や庭への散
水用等に再利用する、分離膜利用排水再利用装置及び運
転方法が開示されている。
For example, Japanese Patent Application Laid-Open No. 2000-279980 discloses that domestic wastewater excluding toilet wastewater and kitchen wastewater having relatively low biological oxygen demand (BOD) and suspended solids (SS) concentration is high. A separation membrane in the shape of a plate or hollow fiber made of a molecular organic compound or ceramic was immersed,
Activated sludge is introduced into a tank containing mud-like microorganisms, and organic matter is decomposed by activated sludge, solid-liquid separation is performed by a separation membrane, and the treated water is sterilized, and then used for toilet flushing water and water sprinkling in gardens. An apparatus for reusing wastewater using a separation membrane and an operation method for reusing wastewater are disclosed.

【0004】しかしながら、この分離膜利用排水再利用
装置を下水道が未設備な浄化槽地域において使用するた
めには、この装置が処理対象とする排水がトイレ排水と
台所排水とを除いた比較的汚濁の少ない排水であるた
め、この装置に加えて、トイレ排水や台所排水の処理の
ために別途合併浄化槽等を設置しなければならず、必要
設置スペースが大きくなり、また配管の複雑化等による
設置工事費用の増大等の問題点がある。
[0004] However, in order to use this separation membrane-based wastewater recycling apparatus in a septic tank area without a sewer system, the wastewater to be treated by this apparatus is relatively polluted excluding toilet wastewater and kitchen wastewater. Due to the small amount of wastewater, in addition to this equipment, separate septic tanks must be installed for the treatment of toilet drainage and kitchen wastewater, which increases the required installation space and installation work due to complicated piping. There are problems such as an increase in cost.

【0005】また、処理対象排水が、排水の水量が少な
くかつ比較的汚濁が少ないので全汚濁物負荷量が低く、
活性汚泥の栄養源である有機物が不足して活性汚泥の微
粒子化、分散化が進行し、分離膜の目詰まりが発生し易
くなると言う問題点がある。更に、流入水がトイレ排水
や台所排水を除いた生活排水のみであるため得られる処
理水量が少なく、処理水の再利用量が増えれば水量不足
が起こり、例えば上水等を補給して水量を確保しなけれ
ばならない等問題点がある。
[0005] Further, since the wastewater to be treated has a small amount of wastewater and relatively little pollution, the total pollutant load is low.
There is a problem that the activated sludge becomes finer and more dispersible due to a lack of organic matter as a nutrient source of the activated sludge, and the separation membrane is more likely to be clogged. Furthermore, the amount of treated water obtained is small because the inflow water is only household wastewater excluding toilet wastewater and kitchen wastewater, and if the reused amount of treated water increases, water shortage will occur. There are problems such as having to secure them.

【0006】一方、分離膜により全ての生活排水を処理
し、河川等に排出するタイプの膜式浄化槽が発売されて
いる。全ての生活排水を一括して処理するために大面積
の分離膜が必要であり、イニシャルコストが高くなる
上、排水の全汚濁物負荷量が大きいために余剰汚泥が大
量に発生し、廃棄物の増加やこれの処理費用が増加する
という問題点がある。
On the other hand, a membrane type septic tank in which all domestic wastewater is treated by a separation membrane and discharged to a river or the like has been put on the market. A large-area separation membrane is required to treat all domestic wastewater collectively, which increases initial costs and generates a large amount of excess sludge due to the large load of all pollutants in wastewater. However, there is a problem that an increase in the cost and a processing cost for this increase.

【0007】[0007]

【発明が解決しようとする課題】本発明の排水処理装置
は、トイレ洗浄水や庭散水等に再利用が可能な程度まで
浄化された良質な処理水を低コストで必要な量だけ得る
ことができ、かつ設置面積が小さくて簡単に設置でき、
浄化槽地域においても設置が可能な、排水を再利用でき
る排水処理装置を提供する目的でなされたものである。
The waste water treatment apparatus of the present invention is capable of obtaining a required amount of low-cost, high-quality treated water purified to such an extent that it can be reused for toilet flushing water, garden watering, and the like. It can be installed easily and has a small installation area.
The purpose of the present invention is to provide a wastewater treatment apparatus that can be installed in a septic tank area and that can reuse wastewater.

【0008】[0008]

【課題を解決するための手段】請求項1記載の排水再利
用処理装置は、流入排水の夾雑物を除去する夾雑物除去
槽と、前記夾雑物除去槽からの排水を活性汚泥により好
気処理しつつ分離膜で濾過する活性汚泥処理槽と、前記
活性汚泥処理槽からの処理水を貯留する貯留槽と、前記
夾雑物除去槽からの排水を接触材に固定した微生物によ
り好気的に処理する生物膜処理槽と、前記生物膜処理槽
からの処理水中の固形分を沈殿させる沈殿槽と、沈殿槽
からの上澄み水を消毒する消毒槽とからなる排水処理装
置であって、前記貯留槽に蓄えられた処理水を再利用
し、前記生物膜処理槽で処理された排水を放流すること
を特徴とする排水再利用処理装置である。
According to a first aspect of the present invention, there is provided an apparatus for reusing wastewater, wherein a foreign matter removing tank for removing foreign matter from the inflow wastewater and a wastewater from the foreign matter removing tank are aerobically treated by activated sludge. Activated sludge treatment tank for filtering with a separation membrane while performing the treatment, a storage tank for storing the treated water from the activated sludge treatment tank, and aerobically treated by the microorganism fixed to the contact material with wastewater from the contaminant removal tank A wastewater treatment apparatus, comprising: a biofilm treatment tank that performs, a sedimentation tank that precipitates solids in the treated water from the biofilm treatment tank, and a disinfection tank that disinfects supernatant water from the sedimentation tank, wherein the storage tank Wastewater treated in the biofilm treatment tank is discharged by recycling the treated water stored in the biofilm treatment tank.

【0009】請求項2記載の排水再利用処理装置におい
ては、上記貯留槽が満水でなければ排水を夾雑物除去槽
から活性汚泥処理槽に移送し、貯留槽が満水であれば排
水を夾雑物除去槽から生物膜処理槽に移送する。
[0009] In the wastewater re-use treatment apparatus according to the second aspect, the wastewater is transferred from the contaminant removal tank to the activated sludge treatment tank if the storage tank is not full, and the wastewater is contaminated if the storage tank is full. Transfer from the removal tank to the biofilm treatment tank.

【0010】請求項3記載の排水再利用処理装置におい
ては、上記貯留槽の後に、該貯留槽に蓄えられた処理水
を再利用するための消毒部を備えている。
According to a third aspect of the present invention, there is provided a wastewater recycle treatment apparatus, further comprising a disinfecting section after the storage tank for reusing treated water stored in the storage tank.

【0011】請求項4記載の排水再利用処理装置におい
ては、上記生物膜処理槽における接触材が好気的処理す
る微生物が付着した多孔質担体とされている。
[0011] In the wastewater reuse treatment apparatus according to the fourth aspect, the contact material in the biofilm treatment tank is a porous carrier to which microorganisms to be aerobicly treated are attached.

【0012】(作用)本発明の排水再利用処理装置は、
少人数の全ての生活排水を集合させて処理するので、排
水配管のレイアウトが簡単になり工事費が安くなる。
又、その排水の一部が分離膜で濾過する活性汚泥処理槽
により浄化され、貯留槽が満水でなければ、満水になる
まで活性汚泥処理で浄化された水が貯留槽に補給される
ので、再利用に必要な水量が不足することがなく、更
に、貯留槽に貯められた処理水が使用前に消毒されるの
で、再利用水が良質な水質となる上、全排水の一部であ
って再利用される水量分だけを処理するので、ランニン
グコストが安くなる。
(Effect) The wastewater reuse treatment apparatus of the present invention
Since all small households collect and treat the wastewater, the layout of the drainage piping is simplified and the construction cost is reduced.
In addition, a part of the wastewater is purified by an activated sludge treatment tank that is filtered by a separation membrane, and if the storage tank is not full, water purified by the activated sludge treatment is supplied to the storage tank until the storage tank is full. There is no shortage of water required for reuse, and the treated water stored in the storage tank is disinfected before use, so that the reused water has good water quality and is part of the total drainage. Since only the amount of water that is reused is processed, running costs are reduced.

【0013】また、生物膜処理槽における接触材が好気
的処理する微生物が付着した多孔質担体であるので、生
活排水の水質が河川等に放流が可能な水質に浄化され、
浄化槽地域でも設置が可能となる。
[0013] Further, since the contact material in the biofilm treatment tank is a porous carrier to which microorganisms to be subjected to aerobic treatment are attached, the quality of domestic wastewater is purified to a quality that can be discharged to rivers and the like.
It can be installed in septic tank areas.

【0014】更に、一つの排水処理装置内に再利用装置
と生活排水浄化装置とが設けられているので、再利用装
置と合併浄化槽とを併設する場合と比較して、設置面積
が小さな排水再利用処理装置となり、設備費も安くな
る。
Further, since the reuse device and the domestic wastewater purification device are provided in one wastewater treatment device, the wastewater recycling device having a small installation area is smaller than the case where the reuse device and the combined wastewater purification tank are provided together. It becomes a use processing device, and equipment costs are reduced.

【0015】[0015]

【発明の実施の形態】次に図面を参照しながら本発明の
排水再利用処理について説明する。図1は、本発明の排
水再利用処理装置の機能を説明するための処理フロー図
である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a wastewater reusing process according to the present invention will be described with reference to the drawings. FIG. 1 is a process flowchart for explaining the function of the wastewater reuse treatment device of the present invention.

【0016】流入排水Hはまず比較的大きな固形物が夾
雑物除去工程Aにより取り除かれた後、活性汚泥により
好気処理しつつ、分離膜でろ過する活性汚泥処理工程
B、あるいは、接触材に固定した微生物により好気的に
処理する生物膜処理工程Eに移送される。活性汚泥処理
槽からの処理水は貯留工程Cで貯留され、消毒工程Dを
経て再利用水Iとして再利用される。生物膜処理工程E
からの排水水は、沈殿工程Fにてわずかに含まれる固形
分を重力沈降させ、消毒工程Gを経て放流水Jとして放
流される。
The influent wastewater H is first treated in an activated sludge process B in which relatively large solids are removed in a contaminant removal process A and then filtered through a separation membrane while being aerobically treated with activated sludge. It is transferred to the biofilm treatment step E where it is aerobically treated by the fixed microorganisms. The treated water from the activated sludge treatment tank is stored in a storage step C, and is reused as reuse water I through a disinfection step D. Biofilm treatment process E
From the wastewater is subjected to gravity sedimentation of a small amount of solids contained in the sedimentation step F, and is discharged as effluent water J through the disinfection step G.

【0017】図2は、本発明の排水処理装置の実施の一
例を示す断面図である。家庭からの全排水を集合させ
て、まず夾雑物除去槽3に流入させ、排水に含まれる髪
の毛、繊維くず等を夾雑物除去槽3底部に沈殿あるい
は、夾雑物除去槽3中間部に設置されたろ材4により取
り除き、活性汚泥処理槽7中の分離膜5の目詰まりを防
止する。
FIG. 2 is a sectional view showing an embodiment of the wastewater treatment apparatus according to the present invention. All the waste water from the household is collected and first flowed into the impurity removing tank 3, and the hair, fiber waste, etc. contained in the waste water are settled at the bottom of the impurity removing tank 3 or installed in the intermediate part of the impurity removing tank 3. It is removed by the filter medium 4 to prevent clogging of the separation membrane 5 in the activated sludge treatment tank 7.

【0018】ろ材4のサイズ、材質、形状は特に限定さ
れるものではないが、通常円筒形の樹脂製網状ろ材が好
んで用いられる。夾雑物除去槽3の一部は、急に大量の
排水が流入した場合を想定し、流量調整部6を兼ねてい
る。夾雑物除去槽3に流量調整機能を備えることによ
り、排水の急な活性汚泥処理槽7、生物膜処理槽8への
流入を防止し、常に安定した処理を行うことができる。
Although the size, material, and shape of the filter medium 4 are not particularly limited, a cylindrical resin mesh filter medium is usually preferably used. A part of the contaminant removal tank 3 also serves as the flow rate adjusting unit 6 in a case where a large amount of wastewater suddenly flows. By providing the impurity removal tank 3 with a flow rate adjusting function, it is possible to prevent the wastewater from flowing into the activated sludge treatment tank 7 and the biofilm treatment tank 8 suddenly, and to always perform a stable treatment.

【0019】夾雑物除去槽3の排水は、活性汚泥処理槽
7又は生物膜処理槽8のいずれか一方にのみ移送され
る。移送の方法としては、例えば一例として、本例示の
方法のように、計量装置を備えたエアリフトA9によっ
て活性汚泥処理槽7、同じく計量装置を備えたエアリフ
トB10によって生物膜処理槽8にそれぞれ定量移送可
能な構造になっており、エアリフトA9、エアリフトB
10への空気配管は電磁弁11を介して1台の送風機1
2と接続され、常にエアリフトA9、エアリフトB10
のどちらか一方のみ稼働させて行う方法等が挙げられ
る。
The wastewater from the impurity removing tank 3 is transferred to only one of the activated sludge treatment tank 7 and the biofilm treatment tank 8. As a transfer method, for example, as in the method of the present example, for example, as in the method of the present example, quantitative transfer to the activated sludge treatment tank 7 by an airlift A9 equipped with a measuring device and the biofilm treatment tank 8 by an airlift B10 also equipped with a measuring device. Air lift A9, air lift B
The air pipe to 10 is connected to one blower 1 through a solenoid valve 11.
2 and always connected to the air lift A9 and air lift B10
And operating only one of them.

【0020】電磁弁11の制御は貯留槽14に備え付け
られた水位検知装置13により行われ、活性汚泥処理槽
7からの処理水を貯留するための貯留槽14が満水でな
ければエアリフトA9に送風し排水は活性汚泥処理槽7
に移送され、貯留槽14が満水であればエアリフトB1
0に送風し排水は生物膜処理槽8に移送される。
The control of the solenoid valve 11 is performed by a water level detecting device 13 provided in the storage tank 14, and if the storage tank 14 for storing the processing water from the activated sludge processing tank 7 is not full, the air is blown to the air lift A9. Wastewater is activated sludge treatment tank 7
If the storage tank 14 is full, the air lift B1
And the wastewater is transferred to the biofilm treatment tank 8.

【0021】活性汚泥処理槽7内では、活性汚泥中に膜
分離装置15が浸漬され、膜分離装置15底部に備え付
けられた散気管16からのバブリングにより、好気処
理、膜洗浄を行いつつ、吸引ポンプ17でろ過し処理水
を得る。活性汚泥処理槽7からの処理水は、分離膜5で
ろ過されているため、再利用基準をクリアした良好な水
質となる。
In the activated sludge treatment tank 7, the membrane separation device 15 is immersed in the activated sludge, and is subjected to aerobic treatment and membrane cleaning by bubbling from a diffuser 16 provided at the bottom of the membrane separation device 15. Filtration is performed with a suction pump 17 to obtain treated water. Since the treated water from the activated sludge treatment tank 7 is filtered by the separation membrane 5, the treated water has a good water quality that satisfies the reuse standard.

【0022】浸漬される膜分離装置15としては特に限
定されるものではないが、複数の樹脂製平膜を平行に並
べたタイプのものが好んで用いられる。貯留槽14では
活性汚泥処理槽7からの処理水が貯留され、処理水はポ
ンプ18等で吸い上げることにより再利用される。また
貯留槽14の後段に消毒部19を設けて消毒、殺菌する
ことにより、衛生的な再利用水が得られる。
The membrane separator 15 to be immersed is not particularly limited, but a type in which a plurality of resin flat membranes are arranged in parallel is preferably used. The treated water from the activated sludge treatment tank 7 is stored in the storage tank 14, and the treated water is reused by sucking it up by the pump 18 or the like. In addition, a sanitizing section 19 is provided at the subsequent stage of the storage tank 14 to sterilize and sterilize, so that sanitary reuse water can be obtained.

【0023】活性汚泥処理槽7に移送される以外の排水
は、生物膜処理槽8に移送され浄化される。生物膜処理
槽8には接触材20が充填され、接触材20下方に備え
付けられた散気管21からのバブリンブにより、接触材
20に付着した微生物により好気処理を行う。
The wastewater other than transferred to the activated sludge treatment tank 7 is transferred to the biofilm treatment tank 8 for purification. The biofilm treatment tank 8 is filled with a contact material 20, and aerobic treatment is performed by microorganisms attached to the contact material 20 by babbling from an air diffuser 21 provided below the contact material 20.

【0024】接触材20としては、比表面積が大きく、
有機成分を吸着ないしは付着し得るものであれば特に限
定されるものではないが、生物膜処理槽8内を浮き沈み
しうる比重1程度の流動性の良好な多孔質担体24が好
ましく用いられる。多孔質担体を用いる本事例において
は、多孔質担体24の充填率に関しては特に限定される
ものではないが、生物膜処理槽8の容量の1〜50%で
あることが好ましい。これらの多孔質担体24の材質と
しては、例えば、合成有機系高分子材料、天然有機系高
分子材料、無機系材料があげられる。接触材として多孔
質担体24を用いる場合は、沈殿槽22に多孔質担体2
4が流れ込まないように、生物膜処理槽8と沈殿槽22
の連通部にメッシュ25が設置される。
The contact material 20 has a large specific surface area,
The material is not particularly limited as long as it can adsorb or adhere the organic component, but a porous carrier 24 having a specific gravity of about 1 and having good fluidity and capable of floating in the biofilm treatment tank 8 is preferably used. In this case using the porous carrier, the filling rate of the porous carrier 24 is not particularly limited, but is preferably 1 to 50% of the capacity of the biofilm treatment tank 8. Examples of the material of the porous carrier 24 include a synthetic organic polymer material, a natural organic polymer material, and an inorganic material. When the porous carrier 24 is used as the contact material, the porous carrier 2
The biofilm treatment tank 8 and the sedimentation tank 22
The mesh 25 is installed in the communication part of.

【0025】沈殿槽22では、生物膜処理槽8からの処
理水中に含まれる微細な固形分、接触材20からはく離
した汚泥等を重力沈降させる。沈殿槽22から越流する
固形物等を除去された処理水は消毒槽23で消毒されて
放流水2とされ、河川や下水道等に放流される。
In the sedimentation tank 22, fine solids contained in the treated water from the biofilm treatment tank 8, sludge separated from the contact material 20, and the like are settled by gravity. The treated water from which solids and the like flowing over from the sedimentation tank 22 have been removed is disinfected in the disinfection tank 23 to be discharged water 2 and discharged to rivers, sewers and the like.

【0026】[0026]

【発明の効果】以上の通りであるから、本発明の排水再
利用処理装置は、家庭からの排水の全量を処理するた
め、浄化槽地域においても本発明の排水処理装置のみの
設置スペースがあればよい。また、全排水配管をまとめ
ることが可能であるので配管レイアウトを簡単にするこ
とができる。またトイレ排水、台所排水を除いた生活排
水と比較し、汚濁負荷が高いので、活性汚泥が良好な状
態を維持し、分離膜の目詰まりの発生を抑えることがで
き、また、流入水量が多いため、処理水切れになりにく
く、上水補給の頻度を少なくすることができる。
As described above, the wastewater reuse treatment apparatus of the present invention treats the entire amount of wastewater from homes. Therefore, even in a septic tank area, if there is an installation space for only the wastewater treatment apparatus of the present invention, Good. Further, since all drainage pipes can be put together, the pipe layout can be simplified. In addition, compared to domestic wastewater excluding toilet drainage and kitchen wastewater, the pollutant load is high, so activated sludge can be maintained in a good condition, clogging of the separation membrane can be suppressed, and the amount of inflow water is large For this reason, the treated water is less likely to run out, and the frequency of water supply can be reduced.

【0027】更に、排水は貯留槽が満水でないときのみ
活性汚泥処理槽で処理し、再利用水質基準をクリアした
水を貯留する。活性汚泥処理槽の後に消毒部を備えてい
るため衛生的な再利用水を得ることができる。
Further, the wastewater is treated in the activated sludge treatment tank only when the storage tank is not full, and the water that meets the reuse water quality standard is stored. Since a disinfection unit is provided after the activated sludge treatment tank, sanitary reuse water can be obtained.

【0028】加えて、貯留槽が満水であれば排水を生物
膜処理槽で処理し、生物膜処理槽に、比表面積の大きい
多孔質担体が充填されているため、放流水質基準をクリ
アした水を河川放流する。そのため、家庭からの排水全
量を分離膜を用いて処理する場合と比較して必要膜面積
が少なく、また発生する余剰汚泥を少なくすることがで
きる。
In addition, if the storage tank is full, the wastewater is treated in a biofilm treatment tank, and the biofilm treatment tank is filled with a porous carrier having a large specific surface area. To the river. Therefore, compared with the case where the whole amount of wastewater from home is treated using the separation membrane, the required membrane area is small, and the generated excess sludge can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の排水再利用処理装置の処理工程を示す
フロー図である。
FIG. 1 is a flowchart showing processing steps of a wastewater reuse processing apparatus of the present invention.

【図2】本発明の排水再利用処理装置の実施の一例を示
す断面図である。
FIG. 2 is a cross-sectional view showing an example of an embodiment of a wastewater reuse treatment device of the present invention.

【符号の説明】[Explanation of symbols]

1 流入 2 放流 3 夾雑物除去槽 4 ろ材 5 分離膜 6 流量調整部 7 活性汚泥処理槽 8 生物膜処理槽 9 エアリフトA 10 エアリフトB 11 電磁弁 12 送風機 13 水位検知装置 14 貯留槽 15 膜分離装置 16、21 散気管 17 吸引ポンプ 18 ポンプ 19 消毒部 20 接触材 22 沈殿槽 23 消毒槽 24 メッシュ 25 再利用 A 夾雑物除去工程 B 活性汚泥処理工程 C 貯留工程 D 消毒工程 E 生物膜処理工程 F 沈殿工程 G 消毒工程 H 流入排水 I 再利用水 J 放流水 DESCRIPTION OF SYMBOLS 1 Inflow 2 Discharge 3 Contaminant removal tank 4 Filter material 5 Separation membrane 6 Flow rate adjustment unit 7 Activated sludge treatment tank 8 Biofilm treatment tank 9 Air lift A 10 Air lift B 11 Electromagnetic valve 12 Blower 13 Water level detection device 14 Storage tank 15 Membrane separation device 16, 21 Air diffuser 17 Suction pump 18 Pump 19 Disinfection unit 20 Contact material 22 Sedimentation tank 23 Disinfection tank 24 Mesh 25 Reuse A Contaminant removal step B Activated sludge treatment step C Storage step D Disinfection step E Biofilm treatment step F Precipitation Process G Disinfection process H Inflow wastewater I Reuse water J Discharge water

フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) E03C 1/01 E03C 1/01 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (Reference) E03C 1/01 E03C 1/01

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 流入排水の夾雑物を除去する夾雑物除去
槽と、前記夾雑物除去槽からの排水を活性汚泥により好
気処理しつつ分離膜で濾過する活性汚泥処理槽と、前記
活性汚泥処理槽からの処理水を貯留する貯留槽と、前記
夾雑物除去槽からの排水を接触材に固定した微生物によ
り好気的に処理する生物膜処理槽と、前記生物膜処理槽
からの処理水中の固形分を沈殿させる沈殿槽と、沈殿槽
からの上澄み水を消毒する消毒槽とからなる排水処理装
置であって、前記貯留槽に蓄えられた処理水を再利用
し、前記生物膜処理槽で処理された排水を放流すること
を特徴とする排水再利用処理装置。
1. An activated sludge treatment tank for removing contaminants from an inflow wastewater, an activated sludge treatment tank for aerobically treating wastewater from the contaminant removal tank and filtering through a separation membrane while activating the activated sludge. A storage tank for storing treated water from the treatment tank, a biofilm treatment tank for aerobically treating wastewater from the contaminant removal tank with microorganisms fixed to the contact material, and treated water from the biofilm treatment tank A wastewater treatment apparatus comprising a sedimentation tank for precipitating solids and a disinfection tank for disinfecting supernatant water from the sedimentation tank, wherein the treated water stored in the storage tank is reused, and the biofilm treatment tank is reused. Wastewater reuse treatment equipment characterized by discharging the wastewater treated in the above.
【請求項2】 前記貯留槽が満水でなければ排水を夾雑
物除去槽から活性汚泥処理槽に移送し、貯留槽が満水で
あれば排水を夾雑物除去槽から生物膜処理槽に移送する
ことを特徴とする請求項1記載の排水再利用処理装置。
2. When the storage tank is not full, the wastewater is transferred from the contaminant removal tank to the activated sludge treatment tank, and when the storage tank is full, the wastewater is transferred from the contaminant removal tank to the biofilm treatment tank. The wastewater reuse treatment apparatus according to claim 1, wherein:
【請求項3】 上記貯留槽の後に、該貯留槽に蓄えられ
た処理水を再利用するための消毒部を備えたことを特徴
とする請求項1乃至2記載の排水再利用処理装置。
3. The wastewater reuse treatment apparatus according to claim 1, further comprising a disinfecting section provided after the storage tank for reusing treated water stored in the storage tank.
【請求項4】 上記生物膜処理槽における接触材が好気
的処理する微生物が付着した多孔質担体であることを特
徴とする請求項1乃至3記載の排水再利用処理装置。
4. The wastewater reuse treatment apparatus according to claim 1, wherein the contact material in the biofilm treatment tank is a porous carrier to which microorganisms to be aerobicly treated are attached.
JP2001038585A 2001-02-15 2001-02-15 Apparatus for recycling waste water Pending JP2002239570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001038585A JP2002239570A (en) 2001-02-15 2001-02-15 Apparatus for recycling waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001038585A JP2002239570A (en) 2001-02-15 2001-02-15 Apparatus for recycling waste water

Publications (1)

Publication Number Publication Date
JP2002239570A true JP2002239570A (en) 2002-08-27

Family

ID=18901533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001038585A Pending JP2002239570A (en) 2001-02-15 2001-02-15 Apparatus for recycling waste water

Country Status (1)

Country Link
JP (1) JP2002239570A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030002212A (en) * 2001-06-30 2003-01-08 임명구 A auto-seperation draining apparatus and method capable of separately draining waste water as to its quality
US7794592B2 (en) 2006-06-29 2010-09-14 Ralph Brown Wastewater disinfection apparatus and methods
KR101036622B1 (en) 2009-06-12 2011-05-24 삼성중공업 주식회사 Apparatus for Treatment of Ship Wastewater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030002212A (en) * 2001-06-30 2003-01-08 임명구 A auto-seperation draining apparatus and method capable of separately draining waste water as to its quality
US7794592B2 (en) 2006-06-29 2010-09-14 Ralph Brown Wastewater disinfection apparatus and methods
KR101036622B1 (en) 2009-06-12 2011-05-24 삼성중공업 주식회사 Apparatus for Treatment of Ship Wastewater

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