JPH0133193Y2 - - Google Patents
Info
- Publication number
- JPH0133193Y2 JPH0133193Y2 JP1986061833U JP6183386U JPH0133193Y2 JP H0133193 Y2 JPH0133193 Y2 JP H0133193Y2 JP 1986061833 U JP1986061833 U JP 1986061833U JP 6183386 U JP6183386 U JP 6183386U JP H0133193 Y2 JPH0133193 Y2 JP H0133193Y2
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- tank
- sludge treatment
- batch activated
- treatment tank
- 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
Links
- 239000010802 sludge Substances 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000006228 supernatant Substances 0.000 claims description 16
- 238000000746 purification Methods 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 11
- 241000894006 Bacteria Species 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 64
- 238000000855 fermentation Methods 0.000 description 26
- 230000004151 fermentation Effects 0.000 description 26
- 238000005273 aeration Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 10
- 238000004062 sedimentation Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Treatment Of Sludge (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、水洗トイレ汚水又は屎尿と雑排水
との混合汚水を省エネ的に浄化処理し、高度に浄
化された処理水を得ることができる浄化装置に関
する。[Detailed description of the invention] [Industrial application field] This invention can purify wastewater from flush toilets or mixed wastewater of human waste and gray water in an energy-saving manner, and can obtain highly purified treated water. Regarding purification equipment.
現在、広く使われている屎尿浄化装置の型式に
ついては、接触曝気式、活性汚泥法による分離曝
気式、及び腐敗槽を使用する散水濾床式の３種類
のものがある。
Currently, there are three types of human waste purification systems that are widely used: a contact aeration type, a separation aeration type using an activated sludge method, and a trickling filter type using a septic tank.
しかしながら、上記のものについては、ブロワ
ーの所要動力、処理水質、処理水質の変動及び汚
泥生成量についての問題点を有している。特に、
分離曝気式のものは活性汚泥法によつて処理する
ものであるが、沈澱物から活性汚泥のキヤリオー
バーが発生し易く、また、腐敗槽を使用する散水
濾床式のものは、省エネ的ではあるものの、処理
水質が接触曝気式及び分離曝気式のものに比べて
劣り、悪臭が発生し易いという問題点を有してい
る。また、従来の回分活性汚泥法については、
BOD除去速度を高めて槽をコンパクト化するた
めに活性汚泥濃度（MLSS）を高くすると、活性
汚泥の沈降速度が著しく減少してしまい、所要の
上澄水ゾーンを形成させるのに長時間を要してし
まうという重大な問題点があり、槽をコンパクト
化することができなかつた。更に、従来の流量調
整槽を設けていない回分活性汚泥処理法では、上
澄水の引き抜き時に、汚水の流入があると、浄化
不良水が上澄水に混入し、そして、浄化不良水が
混入した上澄水が処理水として放流されてしまう
という問題点があつた。
However, the above methods have problems with the power required for the blower, the quality of treated water, fluctuations in the quality of treated water, and the amount of sludge produced. especially,
The separated aeration type uses the activated sludge method, but carryover of activated sludge from sediment tends to occur, and the trickling filter type, which uses a septic tank, is not energy efficient. However, there are problems in that the quality of the treated water is inferior to those of the contact aeration type and the separate aeration type, and that bad odors are likely to occur. Regarding the conventional batch activated sludge method,
If the activated sludge concentration (MLSS) is increased to increase the BOD removal rate and make the tank more compact, the sedimentation rate of activated sludge will be significantly reduced, and it will take a long time to form the required supernatant water zone. There was a serious problem in that the tank was not compact enough. Furthermore, in the conventional batch activated sludge treatment method that does not have a flow rate adjustment tank, if sewage flows in when supernatant water is withdrawn, poorly purified water mixes with the supernatant water, and There was a problem that clear water was being discharged as treated water.
この考案の目的は、上記のそれぞれの浄化装置
の問題点を解消することであり、省エネ的で良好
な水質を安定して得ることができ、しかも、汚泥
発生量が少ないという特徴を有する浄化装置を提
供することである。 The purpose of this invention is to solve the problems of each of the above-mentioned purification devices, and it is an energy-saving purification device that can stably obtain good water quality and generates less sludge. The goal is to provide the following.
この考案は、上記の問題点を解消し、上記の目
的を達成するために、次のように構成されてい
る。すなわち、この考案は、メタン発酵菌の存在
する下部に汚水の流入口を設け且つその上部に流
出口を設けた逆錐形状の嫌気槽、及び前記嫌気槽
の下流に設置された逆錐形状の回分活性汚泥処理
槽から成り、前記回分活性汚泥処理槽内に上下方
向に移動自在な上澄水排出器を設けたもので、更
に詳述すると、前記嫌気槽の前記流出口と前記回
分活性汚泥処理槽の底部とを流路を通じて連絡し
ていることを特徴とする浄化装置に関し、言い換
えると、汚水中のBVDをメタン発酵によつて除
去すると共に、沈降し易いSSを分離する上向流
ブランケツト型メタン発酵槽と、回分活性汚泥法
によつてメタン発酵部から流出してくる残留
BOD、残留SSを浄化する槽とを直列結合するこ
とを特徴とする浄化装置に関する。
In order to solve the above problems and achieve the above objectives, this invention is constructed as follows. That is, this invention consists of an inverted cone-shaped anaerobic tank in which a wastewater inlet is provided in the lower part where methane-fermenting bacteria exist and an outlet in the upper part, and an inverted cone-shaped anaerobic tank installed downstream of the anaerobic tank. It consists of a batch activated sludge treatment tank, and is provided with a supernatant water discharger that is movable in the vertical direction in the batch activated sludge treatment tank, and in more detail, the outlet of the anaerobic tank and the batch activated sludge treatment Regarding a purification device that is characterized by communicating with the bottom of a tank through a flow path, in other words, it is an upflow blanket type that removes BVD in wastewater by methane fermentation and separates SS that tends to settle. Methane fermentation tank and residual water flowing out from the methane fermentation section using the batch activated sludge method.
The present invention relates to a purification device characterized in that a tank for purifying BOD and residual SS is connected in series.
この考案は、上記のように構成されており、次
のように作用する。すなわち、この考案の浄化装
置はメタン発酵菌の存在する逆錐形状の嫌気槽、
及び前記嫌気槽の下流に設置された回分活性汚泥
処理槽から成り、前記回分活性汚泥処理槽内に上
下方向に移動自在な上澄水排出器を設けてあるの
で、前段のメタン発酵槽でBODとSSの大部分を
除去することができ、次いで、回分活性汚泥処理
によつて残留BOD、残留SSを更に除去すること
ができる。それ故に、エアレーシヨン動力が少な
くて済み、しかも、回分活性汚泥処理槽のMLSS
を高濃度にする必要がないから、活性汚泥の沈降
速度が大きくとれる。更に、従来の分離曝気式浄
化装置の欠点である活性汚泥のキヤリオーバーが
発生しないので、常に清澄な処理水を得ることが
できる。また、メタン発酵と回分活性汚泥処理の
直列プロセスなので、余剰汚泥の生成量が少な
い。
This invention is constructed as described above and operates as follows. In other words, the purification device of this invention uses an inverted cone-shaped anaerobic tank in which methane-fermenting bacteria exist;
and a batch activated sludge treatment tank installed downstream of the anaerobic tank, and a vertically movable supernatant water discharger is provided in the batch activated sludge treatment tank, so that BOD and Most of the SS can be removed, and then residual BOD and residual SS can be further removed by batch activated sludge treatment. Therefore, less aeration power is required, and the MLSS of the batch activated sludge treatment tank
Since there is no need to increase the concentration of activated sludge, the sedimentation rate of activated sludge can be increased. Furthermore, carryover of activated sludge, which is a drawback of conventional separation aeration type purifiers, does not occur, so clear treated water can always be obtained. In addition, because it is a serial process of methane fermentation and batch activated sludge treatment, the amount of surplus sludge produced is small.
この考案の実施例を図面を参照して説明する。
水洗トイレから排出された汚水は、流入管８を通
つて流入口２より逆錐形状すなわちコーン状のメ
タン発酵槽１の下部に流入する。汚水は、例え
ば、トイレツトの使用時だけ流入してくるのでメ
タン発酵槽１には断続的流入となる。メタン発酵
槽１内には、メタン菌スラリーＡが維持されてお
り、汚水流入時にメタン菌スラリーＡがブランケ
ツト状に膨張し、汚水の流入がない時は沈積状態
に戻るという脈動を繰り返す。汚水に含まれてい
る沈降し易い有機性SSは、このメタン発酵槽１
内で沈降分離され、メタン菌によつて消化され
る。すなわち、メタン発酵槽１は、沈澱槽とメタ
ン発酵槽との２つの機能を持つている。
An embodiment of this invention will be described with reference to the drawings.
Sewage discharged from the flush toilet flows through the inlet pipe 8 and into the lower part of the cone-shaped methane fermentation tank 1 from the inlet 2. For example, sewage flows into the methane fermentation tank 1 only when the toilet is used, so it flows intermittently into the methane fermentation tank 1. A methane bacteria slurry A is maintained in the methane fermentation tank 1, and the methane bacteria slurry A expands into a blanket shape when sewage flows in, and returns to a sedimentary state when sewage does not flow in, repeating a pulsating cycle. This methane fermentation tank 1 removes organic SS contained in wastewater that is easy to settle.
It is separated by sedimentation and digested by methane bacteria. That is, the methane fermentation tank 1 has two functions: a settling tank and a methane fermentation tank.
汚水は、メタン菌スラリーＡが多量に存在する
メタン発酵槽１のコーン状底部から上向流と成つ
てメタン菌と効果的に接触するので、汚水中の
BODと有機性SSは効率的にメタン発酵を受ける
ことになる。次いで、汚水中の沈降し易いSSと
BOD成分の大半（約70％〜80％の除去率が得ら
れる）が除去されたメタン発酵部流出水は、メタ
ン発酵槽１の上部水面部に設けられたスカムトラ
ツプ１３を通つて流出口３から流路６を通つて隣
接する回分活性汚泥処理槽４の底部に流入する。
回分活性汚泥処理槽４の底部は、傾斜底面５から
成り、コーン状すなわち逆錐形状に形成されてい
る。 The sewage flows upward from the cone-shaped bottom of the methane fermentation tank 1, where a large amount of methane bacteria slurry A exists, and effectively contacts the methane bacteria.
BOD and organic SS will undergo methane fermentation efficiently. Next, SS, which easily settles in wastewater, and
The effluent water from the methane fermentation section, from which most of the BOD components (removal rate of about 70% to 80% can be obtained) has been removed, passes through the scum trap 13 installed at the upper water surface of the methane fermentation tank 1 and from the outlet 3. It flows into the bottom of the adjacent batch activated sludge treatment tank 4 through the flow path 6.
The bottom of the batch activated sludge treatment tank 4 consists of an inclined bottom surface 5 and is formed into a cone shape, that is, an inverted conical shape.
回分活性汚泥処理槽４には、曝気ブロワー９及
び散気器１０によつて呼吸に必要な酸素が供給さ
れており、メタン発酵槽１の流出水中のBODを
資化する活性汚泥が存在しており、メタン発酵槽
１の流出水を高度に浄化して、放流可能な浄化処
理水とする。また、曝気ブロワー９を断続運転す
ることによつて、散気器１０から回分活性汚泥処
理槽４内へ断続的に酸素を供給し、脱窒素を促進
させることも可能である。 The batch activated sludge treatment tank 4 is supplied with oxygen necessary for respiration by an aeration blower 9 and a diffuser 10, and there is activated sludge that utilizes BOD in the effluent of the methane fermentation tank 1. The outflow water from the methane fermentation tank 1 is highly purified to produce purified water that can be discharged. Furthermore, by intermittently operating the aeration blower 9, it is also possible to intermittently supply oxygen from the diffuser 10 into the batch activated sludge treatment tank 4 to promote denitrification.
回分活性汚泥処理槽４については、所定時間エ
アレーシヨンした後に、曝気ブロワー９を停止
し、活性汚泥スラリーを所定時間だけ静置沈降さ
せる。その後に、ポンプ１１を駆動して上澄水を
フロート式の上澄水排出器７から管１２を通つて
排出する。その後に、再びエアレーシヨンを再開
するというサイクルによつて、メタン発酵槽１の
流出水に残留している残留BODと残留SSを更に
除去する。上記実施例では上澄水排出器７として
フロート式を用いているが、上澄水排出器として
フロート式以外に蛇腹式、固定式、伸縮式等のも
のも使用できることは勿論である。 Regarding the batch activated sludge treatment tank 4, after performing aeration for a predetermined time, the aeration blower 9 is stopped and the activated sludge slurry is allowed to settle for a predetermined time. Thereafter, the pump 11 is driven to discharge the supernatant water from the float-type supernatant water discharger 7 through the pipe 12. Thereafter, the residual BOD and residual SS remaining in the effluent water of the methane fermentation tank 1 are further removed by a cycle of restarting the aeration. In the above embodiment, a float type is used as the supernatant water discharger 7, but it goes without saying that other than the float type, bellows type, fixed type, telescopic type, etc. can also be used as the supernatant water discharger.
従来の回分活性汚泥法では、BOD除去速度を
高めて槽をコンパクト化するために活性汚泥濃度
（MLSS）を高くすると、活性汚泥の沈降速度が
著しく減少してしまい、所要の上澄水ゾーンを形
成させるのに長時間を要していたのに対して、こ
の考案による浄化装置では、回分活性汚泥処理槽
４の前段に上向流メタン発酵槽兼沈澱槽すなわち
メタン発酵槽１を設けて、BODの大部分を除去
するので、回分活性汚泥処理槽４をMLSSの沈降
速度が大きい、2000〜3000mg／程度に設定して
も、残留BODを短時間に除去することができる。
しかも、エアレーシヨン動力も大幅に少なくする
ことができる。 In the conventional batch activated sludge process, when the activated sludge concentration (MLSS) is increased to increase the BOD removal rate and make the tank more compact, the settling rate of activated sludge decreases significantly, making it difficult to form the required supernatant water zone. In contrast, in the purification device according to this invention, an upflow methane fermentation tank and sedimentation tank, that is, a methane fermentation tank 1, is provided in the front stage of the batch activated sludge treatment tank 4, and the BOD Therefore, even if the batch activated sludge treatment tank 4 is set to a high MLSS sedimentation rate of about 2000 to 3000 mg/, residual BOD can be removed in a short time.
Moreover, the aeration power can be significantly reduced.
図示のように、回分活性汚泥処理槽４の底部は
逆錐形状に形成されており、この形状の回分活性
汚泥処理槽４にメタン発酵槽１からの流出水を流
入させるという構造は、次のような重要効果があ
る。すなわち、回分活性汚泥処理槽４において、
エアレーシヨンを停止して活性汚泥を沈降させて
上澄水を流出している際に、水洗トイレからの汚
水が流入管８に流入してきても、その汚水流量に
等しいメタン発酵槽１の流出水（流入汚水の
BODの大部分が除去されている）が回分活性汚
泥処理槽４の底部から流入し、沈降状態にある活
性汚泥と接触し、バイオ・ソープシヨンによつて
BODが吸着される。この結果、浄化不充分な汚
水が回分活性汚泥処理槽４から系外に放流される
という心配がない。 As shown in the figure, the bottom of the batch activated sludge treatment tank 4 is formed into an inverted conical shape, and the structure in which the effluent from the methane fermentation tank 1 flows into the batch activated sludge treatment tank 4 having this shape is as follows. There are important effects such as: That is, in the batch activated sludge treatment tank 4,
Even if sewage from the flush toilet flows into the inflow pipe 8 when the aeration is stopped and the activated sludge is settled and the supernatant water flows out, the effluent from the methane fermentation tank 1 (inflow) equal to the flow rate of the sewage flows into the inflow pipe 8. sewage
BOD (from which most of the BOD has been removed) flows into the batch activated sludge treatment tank 4 from the bottom, contacts the settled activated sludge, and is treated by bio-soaption.
BOD is adsorbed. As a result, there is no fear that insufficiently purified sewage will be discharged from the batch activated sludge treatment tank 4 to the outside of the system.
この考案は、以上のように、沈澱分離機能を持
つ上向流のメタン発酵槽と回分活性汚泥処理槽を
直列結合するという構成によつて、次のような効
果を奏するものである。すなわち、前段の前記メ
タン発酵槽で、BODとSSの大部分を除去してか
ら回分活性汚泥処理によつて残留BOD、残留SS
を除去するので、エアレーシヨン動力が少なくて
済み、しかも、前記回分活性汚泥処理槽のMLSS
を高濃度にする必要がないから、活性汚泥の沈降
速度が極めて速く、また、上澄水排出器はフロー
ト式、蛇腹式、伸縮式等を使用すれば、前記上澄
水排出器より上澄水のみを直ちに放出することが
できる。更に、従来の分離曝気式浄化槽の欠点で
ある活性汚泥のキヤリオーバーが発生しないの
で、常に清澄な処理水を得ることができる。ま
た、メタン発酵と回分活性汚泥処理の直列ブロセ
スなので、余剰汚泥の生成量が少ないという効果
を奏するものである。
As described above, this invention achieves the following effects by connecting in series an upward flow methane fermentation tank with a sedimentation separation function and a batch activated sludge treatment tank. In other words, most of the BOD and SS are removed in the methane fermentation tank in the previous stage, and then the remaining BOD and SS are removed by batch activated sludge treatment.
Since the MLSS of the batch activated sludge treatment tank is removed, less aeration power is required.
Since there is no need to make the activated sludge highly concentrated, the settling speed of the activated sludge is extremely fast.In addition, if the supernatant water discharger is of a float type, bellows type, telescopic type, etc., only the supernatant water can be discharged from the supernatant water discharger. Can be released immediately. Furthermore, carryover of activated sludge, which is a drawback of conventional separated aeration type septic tanks, does not occur, so clear treated water can always be obtained. Furthermore, since the process is a series process of methane fermentation and batch activated sludge treatment, the effect is that the amount of surplus sludge produced is small.
図面はこの考案による浄化槽の一実施例を示す
概略図である。
１……メタン発酵槽、２……流入口、３……流
出口、４……回分活性汚泥処理槽、５……傾斜底
面、６……流路、７……上澄水排出器、８……流
入管、９……曝気ブロワー、１０……散気器、１
１……ポンプ、１２……管、１３……スカムトラ
ツプ、Ａ……メタン菌スラリー。
The drawing is a schematic diagram showing an embodiment of a septic tank according to this invention. DESCRIPTION OF SYMBOLS 1... Methane fermentation tank, 2... Inlet, 3... Outlet, 4... Batch activated sludge treatment tank, 5... Inclined bottom, 6... Channel, 7... Supernatant water discharger, 8... ...Inflow pipe, 9...Aeration blower, 10...Aeration diffuser, 1
1...Pump, 12...Pipe, 13...Scum trap, A...Methane bacteria slurry.
Claims (1)
を設け且つその上部に流出口を設けた逆錐形状
の嫌気槽、及び前記嫌気槽の下流に設置された
回分活性汚泥処理槽から成り、前記回分活性汚
泥処理槽内に上下方向に移動自在な上澄水排出
器を設けたことを特徴とする浄化装置。 (2) 前記嫌気槽の前記流出口と前記回分活性汚泥
処理槽の底部とを流路を通じて連絡したことを
特徴とする実用新案登録請求の範囲第１項に記
載の浄化装置。 (3) 前記回分活性汚泥処理槽の下部は逆錐形状に
形成されていることを特徴とする実用新案登録
請求の範囲第１項に記載の浄化装置。[Scope of Claim for Utility Model Registration] (1) An inverted cone-shaped anaerobic tank with a sewage inlet in the lower part where methane-fermenting bacteria exist and an outlet in the upper part, and an anaerobic tank installed downstream of the anaerobic tank. 1. A purification device comprising a batch activated sludge treatment tank, comprising a vertically movable supernatant water discharger provided in the batch activated sludge treatment tank. (2) The purification device according to claim 1, wherein the outlet of the anaerobic tank and the bottom of the batch activated sludge treatment tank are connected through a flow path. (3) The purification apparatus according to claim 1, wherein the lower part of the batch activated sludge treatment tank is formed in an inverted conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986061833U JPH0133193Y2 (en) | 1986-04-25 | 1986-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986061833U JPH0133193Y2 (en) | 1986-04-25 | 1986-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174698U JPS62174698U (en) | 1987-11-06 |
| JPH0133193Y2 true JPH0133193Y2 (en) | 1989-10-09 |
Family
ID=30895530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986061833U Expired JPH0133193Y2 (en) | 1986-04-25 | 1986-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0133193Y2 (en) |
-
1986
- 1986-04-25 JP JP1986061833U patent/JPH0133193Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62174698U (en) | 1987-11-06 |
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