JP2520571B2 - Septic tank with flow rate adjustment device - Google Patents
Septic tank with flow rate adjustment deviceInfo
- Publication number
- JP2520571B2 JP2520571B2 JP27378393A JP27378393A JP2520571B2 JP 2520571 B2 JP2520571 B2 JP 2520571B2 JP 27378393 A JP27378393 A JP 27378393A JP 27378393 A JP27378393 A JP 27378393A JP 2520571 B2 JP2520571 B2 JP 2520571B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- flow rate
- filter bed
- anaerobic filter
- treated water
- 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 - Fee Related
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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Biological Wastes In General (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明は、流量調整装置を備え
た浄化槽に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a septic tank equipped with a flow rate adjusting device.
【0002】[0002]
【従来の技術】最近、例えば処理対象人員が50人以下
の小規模合併処理浄化槽が家庭用生活排水の処理施設と
して急速に普及してきている。そして、この種の合併処
理浄化槽は、単独処理浄化槽と比較して汚濁負荷量の削
減効果が高いため、戸別家庭からの排出が原因の生活系
排水の処理対策に極めて有効な汚水処理施設とされてい
る。2. Description of the Related Art Recently, a small-scale combined treatment septic tank having, for example, 50 or less persons to be treated has rapidly spread as a treatment facility for domestic domestic wastewater. Since this type of combined treatment septic tank is more effective in reducing the pollution load than the single treatment septic tank, it is considered to be an extremely effective sewage treatment facility for the treatment of household wastewater caused by discharge from households. ing.
【0003】このような従来の合併処理浄化槽11は、
図6に示すように構成されている。すなわち、生活系排
水としての原水(汚水)はまず嫌気濾床槽第1室52か
ら嫌気濾床槽第2室53へカスケード状に押し出し方式
で送られて濾過処理され、ついで生物膜処理槽54へ送
水される。そこで担体の間を通過して処理されて有機物
が原水から除去されて処理水槽55に一旦貯えられ、そ
の後、透明な処理水として系外へ放流されるようになっ
ている。必要な場合には、逆洗ポンプにより逆洗水が生
物膜処理槽および嫌気濾床槽へ送水されてそれらの内の
濾材の逆洗がなされる。The conventional combined treatment septic tank 11 as described above is
It is configured as shown in FIG. That is, the raw water (sewage) as domestic wastewater is first sent from the anaerobic filter bed first chamber 52 to the anaerobic filter bed second chamber 53 in a cascading manner for filtration treatment, and then the biofilm treatment tank 54. Sent to. There, the organic matter is removed from the raw water by passing through the space between the carriers, stored once in the treated water tank 55, and then discharged as transparent treated water to the outside of the system. When necessary, the backwash water is sent to the biofilm treatment tank and the anaerobic filter bed tank by the backwash pump to backwash the filter medium therein.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、生活系
排水は時間帯により、例えば朝晩がピークとなり、か
つ、その流量の変動が大きいため、そのピーク時には生
活系排水の処理性能が大巾に低下する浄化施設が多く見
られるのが現状である。However, since the domestic wastewater has a peak depending on the time of the day, for example, in the morning and evening, and the flow rate thereof fluctuates greatly, the treatment performance of the domestic wastewater is greatly reduced at the peak. At present, many purification facilities are seen.
【0005】そこで、本発明では浄化槽に汚水量の変動
を調整する流量調整装置を組み込んで汚水の流量を均一
化して処理性能の向上および安定化を図った浄化槽を提
供することを目的としてる。Therefore, it is an object of the present invention to provide a septic tank in which a flow rate adjusting device for adjusting the fluctuation of the amount of waste water is incorporated in the septic tank to make the flow rate of the waste water uniform and to improve and stabilize the treatment performance.
【0006】[0006]
【課題を解決するための手段】本発明の浄化槽は、嫌気
濾床槽と、生物膜処理槽と、処理水槽と、を順次配設
し、嫌気濾床槽と生物膜処理槽との間に流量調整装置を
配置するとともに、処理水槽から処理水を嫌気濾床槽に
環流させる循環装置を備える。In the septic tank of the present invention, an anaerobic filter bed tank, a biofilm treatment tank, and a treated water tank are sequentially arranged, and the anaerobic filter bed tank and the biofilm treatment tank are provided between the anaerobic filter bed tank and the biofilm treatment tank. A flow rate adjusting device is arranged and a circulation device for circulating the treated water from the treated water tank to the anaerobic filter bed tank is provided.
【0007】[0007]
【作用】本発明の浄化槽では、嫌気濾床槽からの原水の
流量は流量調整装置により流入する原水の変動に合せて
調整されて生物膜処理槽へ送水され、その中で好気性微
生物により処理され透明な処理水とさせ処理水槽に貯え
られて系外へ放流されるとともに、一部の処理水は循環
装置により嫌気濾床槽へ環流される。In the septic tank of the present invention, the flow rate of the raw water from the anaerobic filter bed tank is adjusted by the flow rate adjusting device according to the fluctuation of the raw water flowing into the biofilm treatment tank, and the water is treated by the aerobic microorganisms therein. The treated water is made into transparent treated water, stored in the treated water tank and discharged to the outside of the system, and a part of the treated water is circulated to the anaerobic filter bed tank by the circulation device.
【0008】[0008]
【実施例】この発明の流量調整装置を備えた浄化槽の実
施例を添付した図1から図4について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a septic tank equipped with the flow rate adjusting device of the present invention will be described with reference to FIGS.
【0009】まず、本発明の浄化槽の流量調整装置の流
量調整の原理について図1および図2について説明す
る。First, the principle of flow rate adjustment of the septic tank flow rate adjusting apparatus of the present invention will be described with reference to FIGS.
【0010】図1(a)に示すように、縦軸に生活系排
水の流量(l)、横軸に時間帯(24時間)をとると、
家庭内の生活系排水(汚水)は時間帯により大巾に変動
して、その結果、浄化槽等の排水処理施設の処理性能の
低下および不安定化を招来する。そこで、本発明では、
後述するような手段により、汚水量の変動を調整して処
理量を均一化し、図1(b)に示すように、処理すべき
汚水の水量を時間帯により変動がないように均一化(調
整)する。As shown in FIG. 1 (a), the vertical axis represents the flow rate of domestic wastewater (l) and the horizontal axis represents the time zone (24 hours).
Domestic wastewater (dirt water) fluctuates greatly depending on the time of day, resulting in deterioration and instability of the treatment performance of wastewater treatment facilities such as septic tanks. Therefore, in the present invention,
By means such as that described later, the fluctuation of the amount of wastewater is adjusted to make the treated amount uniform, and as shown in FIG. 1 (b), the amount of wastewater to be treated is made uniform (adjusted so that it does not vary depending on the time period). ) Do.
【0011】そこで、本発明では合併処理浄化槽1を図
2のように構成する。すなわち、例えば、網状円筒形ポ
リエチレン樹脂製濾材を充填した嫌気濾床槽第1室2お
よび嫌気濾床槽第2室3、多孔質セラミック担体を充填
した好気性生物膜処理槽4ならびに処理水を一旦貯える
処理水槽5とがカスケード状に接続されている。Therefore, in the present invention, the combined treatment septic tank 1 is constructed as shown in FIG. That is, for example, the anaerobic filter bed first chamber 2 and the anaerobic filter bed second chamber 3 filled with a reticulated cylindrical polyethylene resin filter medium, the aerobic biofilm treatment tank 4 filled with a porous ceramic carrier, and treated water The treated water tank 5 for storing once is connected in a cascade form.
【0012】嫌気濾床槽2,3では主としてSS分(浮
游物質)の除去と嫌気性生物による浄化が行なわれると
ともに、嫌気濾床槽第2室3には流量調整装置としての
間欠定量ポンプが設けられていて生物膜処理槽4へ定量
送水して流量変動を緩和する働きをしている。すなわ
ち、嫌気濾床槽2,3は2室に分けられていて、流入汚
水(原水)の流量変動をなくすために一日平均汚水量に
対して例えば7時間分の調整容量をもっている。この嫌
気濾床槽2,3で処理された処理水は、例えばエアー駆
動方式の間欠定量ポンプによつて常時定量的に生物膜処
理槽4へ送水されるため、原水(汚水)の流量変動は均
一化されることになる。In the anaerobic filter bed tanks 2 and 3, mainly SS components (floating substances) are removed and purification by anaerobic organisms is performed, and in the second chamber 3 of the anaerobic filter bed, an intermittent metering pump as a flow rate adjusting device is provided. It is provided and supplies a fixed amount of water to the biofilm treatment tank 4 to reduce fluctuations in the flow rate. That is, the anaerobic filter bed tanks 2 and 3 are divided into two chambers, and have an adjusting capacity for, for example, 7 hours with respect to the average daily sewage amount in order to eliminate the fluctuation of the inflow sewage (raw water) flow rate. The treated water treated in the anaerobic filter bed tanks 2 and 3 is always quantitatively fed to the biofilm treatment tank 4 by, for example, an air-driven intermittent metering pump, so that the flow rate of raw water (sewage) is not changed. It will be made uniform.
【0013】生物膜処理槽4では多孔質セラミックス担
体に付着した好気性微生物による水着・分解と物理的濾
過とが行われ透明な処理水が得られることになる。In the biofilm treatment tank 4, swimsuit / decomposition and physical filtration by aerobic microorganisms adhering to the porous ceramics carrier are carried out to obtain transparent treated water.
【0014】また、処理水槽5には逆洗ポンプと循環装
置とが配設されていて、逆洗水がこの逆洗ポンプにより
生物膜処理槽4と嫌気濾床槽第1室2へ送られて、それ
らの濾材の逆洗が行われたとともに、循環装置により槽
内循環水が嫌気濾床槽第1室2へ送られるようになって
いる。The treated water tank 5 is provided with a backwash pump and a circulation device, and the backwash water is sent to the biofilm treatment tank 4 and the anaerobic filter bed first chamber 2 by this backwash pump. Then, the back-washing of these filter media is performed, and the circulating water in the tank is sent to the anaerobic filter bed first chamber 2 by the circulation device.
【0015】ここで槽内循環水として嫌気濾床槽第1室
2へ処理水槽5から戻される流量(N)は、原水流入量
1に対してN=3〜5であるので流量調整装置(間欠定
量ポンプ)により嫌気濾床槽第2室3から生物膜処理槽
4への原水の送水量は1+Nとなる。したがって、生物
膜処理槽4から処理水槽5への処理水の送水量は1+N
となり、N量の処理水が循環水として環流されるので、
結局、放流される処理水の量は1となる。Here, the flow rate (N) returned from the treated water tank 5 to the anaerobic filter bed first chamber 2 as the circulating water in the tank is N = 3 to 5 with respect to the raw water inflow amount 1, so a flow rate adjusting device ( The amount of raw water fed from the anaerobic filter bed second chamber 3 to the biofilm treatment tank 4 is 1 + N by the intermittent metering pump). Therefore, the amount of treated water sent from the biofilm treatment tank 4 to the treated water tank 5 is 1 + N.
Since N amount of treated water is circulated as circulating water,
Eventually, the amount of treated water discharged will be 1.
【0016】次に、このような本発明の流量調整装置の
流量調節原理を適用した浄化槽の実施例を図3から図5
に基づいて説明する。Next, an embodiment of a septic tank to which such a flow rate adjusting principle of the flow rate adjusting device of the present invention is applied is shown in FIGS.
It will be described based on.
【0017】図3に示すように、本実施例の浄化槽1
は、嫌気濾床槽第1室2、嫌気濾床槽第2室3、流量調
整槽4および処理水槽5をカスケード状に連結して構成
される。処理すべき原水(生活系排水、汚水)は流入管
6から嫌気濾床槽2,3に流入し、調整槽41に挾まれ
て配設された好気性生物処理槽4へ定量送水され、そこ
で担体42の間を流下して通過する間に処理され、処理
水槽5に一旦貯えられた後、透明な処理水として放流管
7から系外に放流されるようになっている。なお、浄化
槽1は地表(GL)以下に通常埋設され、かつ、床面
(FL)に台枠11a,11bを介して設置されてい
て、マンホール12a,12b,12cを介してその内
部の監視、点検が可能である。As shown in FIG. 3, the septic tank 1 of this embodiment
Is configured by connecting an anaerobic filter bed first chamber 2, an anaerobic filter bed second chamber 3, a flow rate adjusting tank 4 and a treated water tank 5 in a cascade form. Raw water to be treated (household wastewater, sewage) flows from the inflow pipe 6 into the anaerobic filter tanks 2 and 3, and is quantitatively fed to the aerobic biological treatment tank 4 which is sandwiched between the adjusting tanks 41 and there. The water is treated while flowing down between the carriers 42, is temporarily stored in the treated water tank 5, and is then discharged out of the system through the discharge pipe 7 as transparent treated water. The septic tank 1 is normally buried below the surface of the earth (GL), and is installed on the floor (FL) via the underframes 11a and 11b, and the inside of the septic tank is monitored via the manholes 12a, 12b and 12c. It can be inspected.
【0018】嫌気濾床槽第1室2の軸心部には円筒形ケ
ーシング21が配置され、このケーシング21内に濾材
22として網状円筒形をしたポリエチレン樹脂(PE)
製濾材が多数個充填されている。A cylindrical casing 21 is arranged at the axial center of the anaerobic filter bed first chamber 2, and a net-like cylindrical polyethylene resin (PE) is used as a filter medium 22 in the casing 21.
Many filter media are filled.
【0019】さらに、流入管6の直下には阻流板20が
配設されて流入する原水にバッフル効果を付与してい
る。Further, a baffle plate 20 is arranged immediately below the inflow pipe 6 to give a baffle effect to the inflowing raw water.
【0020】また、仕切板8を介して嫌気濾床槽第1室
2には嫌気濾床槽第2室3が隣接している。この嫌気濾
床槽第2室3内には嫌気濾床槽第1室2と同様にその軸
心部に円筒形ケーシング31が配置され、その円に濾材
32として同じく網状円筒形をしたポリエチレン樹脂
(PE)製濾材が多数個充填されている。そして、嫌気
濾床槽第1室2で嫌気処理された原水は、嫌気濾床槽第
1室2側に設けられた移流口15aから仕切板8の上部
の移流堰15bを経て嫌気濾床槽第2室3内に設けた移
流口に15c内に流入するようになっている。An anaerobic filter bed tank second chamber 3 is adjacent to the anaerobic filter bed tank first chamber 2 via a partition plate 8. Similar to the anaerobic filter bed tank first chamber 2, a cylindrical casing 31 is disposed in the axial center portion of the anaerobic filter bed tank second chamber 3, and a polyethylene resin having a reticulated cylindrical shape is provided as a filter medium 32 in the circle. A large number of (PE) filter media are filled. The raw water that has been anaerobically treated in the anaerobic filter bed first chamber 2 passes through the advection port 15a provided on the anaerobic filter bed first chamber 2 side through the advection weir 15b above the partition plate 8 to the anaerobic filter bed tank. The advection port provided in the second chamber 3 is adapted to flow into the inside of 15c.
【0021】さらに、嫌気濾床槽第2室3に隣接して多
孔質セラミックス担体42(例えは商品名ハイパーミッ
クス、粒径2−15mm)を多数個充填した生物膜処理槽
(好気性生物濾過槽)4が配設されている。Further, a biological membrane treatment tank (aerobic biological filtration) which is adjacent to the second chamber 3 of the anaerobic filter bed and which is filled with a large number of porous ceramics carriers 42 (for example, Hypermix, trade name, particle size 2-15 mm). Tank) 4 is provided.
【0022】この生物膜処理槽4は仕切板9,10によ
り嫌気濾床第2室3と処理水槽5より区分されて形成さ
れるとともに、とくに図4に示すように、隔壁46によ
り仕切られてその両側に空間が形成されて流量調整槽4
1が画成されている。The biofilm treatment tank 4 is formed by being divided by the partition plates 9 and 10 from the anaerobic filter bed second chamber 3 and the treated water tank 5, and is partitioned by a partition wall 46 as shown in FIG. Spaces are formed on both sides of the flow rate adjusting tank 4
1 is defined.
【0023】嫌気濾床槽第2室3からの原水は移流口1
5c,15cから流量調整槽41,41へ流入し、ま
た、開度が調整可能なチェック弁32b,32bが嫌気
濾床槽第2室3と流量調整槽41間の仕切板9に配送さ
れ、流量調整槽41,41への原水の移流量を調節でき
るようにしてある。Raw water from the anaerobic filter bed second chamber 3 is admitted to the admission port 1
5c, 15c flow into the flow rate adjusting tanks 41, 41, and the check valves 32b, 32b whose opening can be adjusted are delivered to the partition plate 9 between the anaerobic filter bed second chamber 3 and the flow rate adjusting tank 41, The flow rate of raw water transferred to the flow rate adjusting tanks 41, 41 can be adjusted.
【0024】また、両流量調整槽41,41は、それら
の底部で連通管32aにより互に連絡されている。これ
により両方の流量調整槽41,41の水位が同一に保た
れる。The two flow rate adjusting tanks 41, 41 are connected to each other at their bottoms by a communication pipe 32a. As a result, the water levels of both flow rate adjusting tanks 41, 41 are kept the same.
【0025】そして、図4と図5に示すようにこの流量
調節槽41内にはそれぞれ間欠定量ポンプ14a(例え
ば実開昭63−110699号公報参照)が設置されて
いて送水管14a′を介して嫌気濾床槽第2室3内の原
水を定量かつ間欠的に隔壁46を越えて生物膜処理槽4
へ送水するようになっている。なお、14dは間欠定量
ポンプ14aの空気管である。また、間欠定量ポンプに
代えて計量堰を用いてもよい。As shown in FIGS. 4 and 5, an intermittent metering pump 14a (see, for example, Japanese Utility Model Laid-Open No. 63-110699) is installed in each of the flow rate adjusting tanks 41, and a water pipe 14a 'is used. Therefore, the raw water in the second chamber 3 of the anaerobic filter bed is quantitatively and intermittently crossed over the partition wall 46 to obtain the biofilm treatment tank 4
It is designed to send water to. In addition, 14d is an air tube of the intermittent metering pump 14a. A metering weir may be used instead of the intermittent metering pump.
【0026】さらに、生物膜処理槽4の支持層43の直
下には槽4内に散気する散気管16bと逆洗管13bが
配設されていて、散気用ポンプ(図示せず)と別の逆洗
管13cを介して逆洗ポンプ13aとにそれぞれ接続さ
れている。また、逆洗ポンプ13aの近傍には処理水戻
しエアーリフト14bが立設されエアーリフト配管14
cを介して処理水槽5内の処理水を嫌気濾床槽第1室2
へ槽内循環水として環流するように構成されている。な
お、このエアーリフトに代えて循環ポンプを用いて循環
水を環流させてもよい。Further, immediately below the support layer 43 of the biofilm treatment tank 4, an air diffuser 16b and a backwash pipe 13b for diffusing air into the tank 4 are provided, and a diffuser pump (not shown) is provided. It is connected to each backwash pump 13a through another backwash pipe 13c. Further, a treated water return air lift 14b is provided upright in the vicinity of the backwash pump 13a and the air lift piping 14 is provided.
The treated water in the treated water tank 5 is transferred via the c to the anaerobic filter bed first chamber 2
It is configured to recirculate as circulating water in the tank. A circulating pump may be used instead of the air lift to circulate the circulating water.
【0027】ついで、処理水槽5内には、その出口端に
消毒槽51が設けられていて薬剤筒52からの消毒材に
より処理水を消毒して放流管7から透明な処理水をして
系外に放流するようになっている。Next, a disinfecting tank 51 is provided at the outlet end of the treated water tank 5, and the treated water is disinfected by the disinfectant from the chemical cylinder 52 to give transparent treated water from the discharge pipe 7. It is designed to be released outside.
【0028】次に上述したように構成された本発明の浄
化槽の実施例の運転の一例を図3に基づいて説明する。Next, an example of the operation of the embodiment of the septic tank of the present invention configured as described above will be described with reference to FIG.
【0029】まず、流入管6から浄化槽1の嫌気濾床槽
第1室2に流入した原水は、矢印で示すように、そこで
濾材22の間を上部から下部に流下する間に濾材22に
付着した嫌気性微生物により処理、浄化されて嫌気濾床
槽第1室2の底部に貯えられてから移流口15aの入口
から流入して押し出し流れ方式で移流堰15bを越えて
別の移流口15c内に流下し、その出口から嫌気濾床槽
第2室3内に流下する。そして別の濾材32により処理
された後、押し出し流れ方式でチェック弁32bを介し
て生物膜処理槽4へ送水される。また、原水が流入して
嫌気濾床槽第2室3内の水位レベルが上昇するとチェッ
ク弁32bよりも上方に位置した移流口15cを越えて
流量調整槽41,41へ原水が流下する。そこで、原水
は流量調整槽41内に配設された間欠定量ポンプ14a
により生物膜処理槽4へ送水管14a′を介して定時間
欠的定量かつ送水される。First, the raw water flowing from the inflow pipe 6 into the anaerobic filter bed first chamber 2 of the septic tank 1 adheres to the filter medium 22 while flowing down between the filter medium 22 from the upper portion to the lower portion thereof as shown by the arrow. After being treated and purified by the anaerobic microorganisms stored and stored at the bottom of the anaerobic filter bed first chamber 2, it flows in through the inlet of the advection port 15a and extrudes through the advection weir 15b into another advection port 15c. To the anaerobic filter bed second chamber 3 from its outlet. Then, after being treated by another filter medium 32, water is sent to the biofilm treatment tank 4 through the check valve 32b by an extrusion flow method. Further, when the raw water flows in and the water level in the second chamber 3 of the anaerobic filter bed rises, the raw water flows down to the flow rate adjusting tanks 41, 41 over the advection port 15c located above the check valve 32b. Therefore, the raw water is supplied to the intermittent metering pump 14a provided in the flow rate adjusting tank 41.
The water is supplied to the biofilm treatment tank 4 via the water supply pipe 14a 'in a fixed time and intermittent manner.
【0030】生物膜処理槽4では、原水は多孔質セラミ
ックス担体42に付着した好気性微生物により下向きに
担体42間を流下する間にその中の基質を散気管16b
から供給される酸素によりCO2とH2Oに分解して、
生物接触酸化と物理的濾過の2つの機能により原水を浄
化して処理水とする。In the biofilm treatment tank 4, raw water is flown downward by the aerobic microorganisms adhering to the porous ceramics carrier 42 between the carriers 42 while the substrate therein is diffused by the aeration pipe 16b.
Decomposed into CO 2 and H 2 O by oxygen supplied from
Raw water is purified by the two functions of biological contact oxidation and physical filtration to obtain treated water.
【0031】そこで浄化された処理水は処理水槽5内に
流入し、消毒後、透明な処理水として放流管7から系外
に放流される。The purified treated water then flows into the treated water tank 5, is sterilized, and is discharged out of the system through the discharge pipe 7 as transparent treated water.
【0032】また、嫌気濾床槽第1室2および第2室3
ならびに生物膜処理槽4内に充填した濾材22,32と
多孔質担体42の逆洗が必要な場合には、逆洗ポンプ1
3aを駆動させた処理水槽5から逆洗水を逆洗管13
b,13cにより生物膜処理槽4の担体42の下部から
送水して逆洗する。さらに、その逆洗水を別の逆洗管1
3dにより嫌気濾床槽第1室2および第2室3に送水し
てその内の濾材を逆洗するようにする。The anaerobic filter bed first chamber 2 and the second chamber 3
In addition, when backwashing of the filter media 22 and 32 and the porous carrier 42 filled in the biofilm treatment tank 4 is necessary, the backwash pump 1
The backwash water is supplied from the treated water tank 5 that drives 3a.
Water is back-washed from the lower part of the carrier 42 of the biofilm treatment tank 4 by b and 13c. Further, the backwash water is replaced with another backwash pipe 1
By 3d, water is supplied to the first chamber 2 and the second chamber 3 of the anaerobic filter bed to backwash the filter medium therein.
【0033】[0033]
【発明の効果】この発明の流量調整装置を備えた浄化槽
は、上述したように間欠定量ポンプにより間欠かつ定量
的に原水を流量調整して生物膜処理槽へ送水できるの
で、原水の浄化処理性能が極めて安定化、高度化すると
ともに、処理水の循環処理により窒素除去のみならず有
機物除去性能および処理水の透明度が飛躍的に向上す
る。さらに循環処理の最適循環比を設定することによ
り、より高い窒素除去性能が得られるとともに、多孔質
セラミックス担体を生物膜処理槽で用いることにより十
分な接触酸化と物理的濾過が行われる効果があり、全体
として浄化槽の槽容積のコンパクト化と消費電力の省エ
ネ化が図れることになる。As described above, the septic tank equipped with the flow rate adjusting device of the present invention can intermittently and quantitatively adjust the flow rate of the raw water by the intermittent metering pump to feed the raw water to the biofilm treatment tank. Is extremely stable and sophisticated, and the circulation of treated water dramatically improves not only nitrogen removal but also organic matter removal performance and treated water transparency. Furthermore, by setting the optimum circulation ratio of the circulation treatment, higher nitrogen removal performance can be obtained, and by using the porous ceramics carrier in the biofilm treatment tank, sufficient catalytic oxidation and physical filtration can be performed. As a whole, the tank volume of the septic tank can be made compact and the power consumption can be saved.
【図1】浄化槽への汚水(原水)流入パターン(図1
(a))と本発明の流量調整装置による汚水(原水)の
流量調整後のパターン(図1(b))を示すダイアグラ
ム。[Fig. 1] Inflow pattern of sewage (raw water) into a septic tank (Fig. 1
(A)) and the diagram which shows the pattern (FIG.1 (b)) after the flow control of the waste water (raw water) by the flow control apparatus of this invention.
【図2】本発明の浄化槽の流量調整の原理を示す概略
図。FIG. 2 is a schematic diagram showing the principle of flow rate adjustment of the septic tank of the present invention.
【図3】本発明の流量調整装置の流量調整原理を適用し
た浄化槽の実施例の縦断断面図。FIG. 3 is a vertical cross-sectional view of an embodiment of a septic tank to which the flow rate adjusting principle of the flow rate adjusting device of the present invention is applied.
【図4】図3に示した浄化槽のIV−IV矢視断面図。FIG. 4 is a cross-sectional view of the septic tank shown in FIG. 3, taken along the line IV-IV.
【図5】図3に示した浄化槽の一部破断平面図。5 is a partially cutaway plan view of the septic tank shown in FIG.
【図6】従来の浄化槽における原水・処理水の流れを示
す概略図。FIG. 6 is a schematic diagram showing the flow of raw water and treated water in a conventional septic tank.
1 浄化槽 2 嫌気濾床槽第1室 3 嫌気濾床槽第2室 4 生物膜処理槽 5 処理水槽 6 流入管 7 放流管 8 仕切板 9 仕切板 10 仕切板 12a,12b,12c マンホール 13a 逆洗ポンプ 13b 逆洗管 13c 逆洗管 13d 逆洗管 14a 間欠定量ポンプ(流量調整装置) 14b 処理水戻しエアーリフト 15a 移流口 15b 移流堰 15c 移流口 22 濾材 32 濾材 41 流量調整槽 42 多孔質セラミックス担体 46 隔壁 51 消毒槽 1 Septic tank 2 Anaerobic filter bed first chamber 3 Anaerobic filter bed second chamber 4 Biofilm treatment tank 5 Treated water tank 6 Inflow pipe 7 Discharge pipe 8 Partition plate 9 Partition plate 10 Partition plate 12a, 12b, 12c Manhole 13a Backwash Pump 13b Backwash pipe 13c Backwash pipe 13d Backwash pipe 14a Intermittent metering pump (flow rate adjustment device) 14b Treated water return air lift 15a Advection port 15b Advection weir 15c Advection port 22 Filter medium 32 Filter medium 41 Flow rate control tank 42 Porous ceramic carrier 46 partition wall 51 disinfection tank
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平1−245897(JP,A) 特開 平4−108597(JP,A) 特開 平4−367793(JP,A) 特開 平5−253587(JP,A) 特開 平5−253595(JP,A) 実開 昭64−48198(JP,U) 実開 平4−37596(JP,U) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-1-245897 (JP, A) JP-A-4-108597 (JP, A) JP-A-4-367793 (JP, A) JP-A-5- 253587 (JP, A) JP-A-5-253595 (JP, A) Actually opened 64-48198 (JP, U) Actually opened 4-37596 (JP, U)
Claims (5)
とを順次原水流入側から配設した浄化槽において、 前記生物膜処理槽を2枚の隔壁により仕切って該生物膜
処理槽の両側に立設した空間を形成し、該両空間を流量
調整槽とし、該流量調整槽内に前記嫌気濾床槽からの原
水の移流量を調節する流量調整装置を備えるとともに前
記処理水槽から処理水を前記嫌気濾床槽に環流させる循
環装置を配設した浄化槽。1. A septic tank in which an anaerobic filter bed tank, a biofilm treatment tank, and a treated water tank are sequentially arranged from the raw water inflow side, wherein the biofilm treatment tank is partitioned by two partition walls. And a space provided on both sides of the treated water tank as a flow rate adjusting tank, and a flow rate adjusting device for adjusting the transfer rate of the raw water from the anaerobic filter bed tank is provided in the flow rate adjusting tank. A septic tank provided with a circulation device for circulating treated water to the anaerobic filter bed tank.
請求項1記載の浄化槽。2. The septic tank according to claim 1, wherein the flow rate adjusting device is an intermittent metering pump.
記載の浄化槽。3. The flow control device is a metering weir.
The described septic tank.
担体を充填した請求項1記載の浄化槽。4. The septic tank according to claim 1, wherein the biofilm treatment tank is filled with a porous ceramics carrier.
処理水槽内に立設されてエアーリフト配管を介して前記
嫌気濾床槽へ連通されている請求項1記載の浄化槽。5. The septic tank according to claim 1, wherein the circulation device is an air lift, which is provided upright in the treated water tank and communicates with the anaerobic filter bed tank through an air lift pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27378393A JP2520571B2 (en) | 1993-11-01 | 1993-11-01 | Septic tank with flow rate adjustment device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27378393A JP2520571B2 (en) | 1993-11-01 | 1993-11-01 | Septic tank with flow rate adjustment device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07124579A JPH07124579A (en) | 1995-05-16 |
JP2520571B2 true JP2520571B2 (en) | 1996-07-31 |
Family
ID=17532525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27378393A Expired - Fee Related JP2520571B2 (en) | 1993-11-01 | 1993-11-01 | Septic tank with flow rate adjustment device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2520571B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5000594B2 (en) * | 2008-07-07 | 2012-08-15 | 株式会社ハウステック | Merger processing septic tank |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6448198U (en) * | 1987-09-16 | 1989-03-24 | ||
JP2723248B2 (en) * | 1988-03-29 | 1998-03-09 | 株式会社クボタ | Sewage treatment equipment |
JPH0437597A (en) * | 1990-06-01 | 1992-02-07 | Ryoden Kasei Co Ltd | Ic card |
JPH0437596U (en) * | 1990-07-24 | 1992-03-30 | ||
JPH04108597A (en) * | 1990-08-28 | 1992-04-09 | Kubota Corp | Adjustment of flow amount in sewage septic tank |
JP3120814B2 (en) * | 1991-06-14 | 2000-12-25 | 西原ネオ工業株式会社 | Operation method of septic tank |
JPH05253595A (en) * | 1991-12-06 | 1993-10-05 | Daiwa Resin Kogyo Kk | Apparatus for treating organic waste |
JPH05253587A (en) * | 1991-12-26 | 1993-10-05 | Daiwa Resin Kogyo Kk | Filter material for treating sewage |
-
1993
- 1993-11-01 JP JP27378393A patent/JP2520571B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07124579A (en) | 1995-05-16 |
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