JPH0133194Y2 - - Google Patents
Info
- Publication number
- JPH0133194Y2 JPH0133194Y2 JP1986070745U JP7074586U JPH0133194Y2 JP H0133194 Y2 JPH0133194 Y2 JP H0133194Y2 JP 1986070745 U JP1986070745 U JP 1986070745U JP 7074586 U JP7074586 U JP 7074586U JP H0133194 Y2 JPH0133194 Y2 JP H0133194Y2
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- treatment tank
- batch
- tank
- sludge 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.)
- Expired
Links
- 239000010802 sludge Substances 0.000 claims description 65
- 238000000746 purification Methods 0.000 claims description 17
- 239000010865 sewage Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 241000894006 Bacteria Species 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 35
- 238000000855 fermentation Methods 0.000 description 29
- 230000004151 fermentation Effects 0.000 description 29
- 238000005273 aeration Methods 0.000 description 18
- 239000006228 supernatant Substances 0.000 description 16
- 238000004062 sedimentation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 5
- 239000008213 purified water Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003911 water pollution Methods 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 Biological Wastes In General (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、下水道の普及していない地域にお
ける水洗トイレ汚水、屎尿と雑排水との混合汚水
等を生物学的に浄化する浄化装置に関する。[Detailed description of the invention] [Field of industrial application] This invention relates to a purification device that biologically purifies sewage from flush toilets, mixed sewage of human waste and gray water, etc. in areas where sewage systems are not widespread.
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.
ところで、下水道がまだ利用されていない地域
において、浄化装置が公共用水域の水質汚染防止
のために果たすべき役割は大きい。
By the way, in areas where sewage systems are not yet in use, purification devices have a large role to play in preventing water pollution in public water bodies.
しかしながら、上記の従来の浄化装置は改善す
べき余地が残つている。即ち、上記３種類のもの
については、ブロワーの消費動力、処理水質、処
理水質の変動及び汚泥生成量、悪臭等の点につい
て完全に満足できるものでなく問題点を有してい
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、沈澱部から活性汚泥の
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、従来の回分式活性汚泥法に
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好ましくない問題点があ
り、そのため浄化装置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
いない回分式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
澄水に混入する状態が生じ、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
好ましくない問題点があつた。 However, there remains room for improvement in the conventional purification devices described above. That is, the above three types are not completely satisfactory and have problems in terms of power consumption of the blower, quality of treated water, fluctuations in quality of treated water, amount of sludge produced, bad odor, etc. In particular, separated aeration type filters are treated using the activated sludge method, but carryover of activated sludge from the settling section is likely to occur, and trickling bed type filters that use a septic tank are energy-saving. However, the quality of the treated water is inferior to that of the contact aeration type and the separate aeration type, and there are problems in that bad odors are likely to occur. In addition, in the conventional batch activated sludge method, when the activated sludge concentration (MLSS) is increased in order to increase the BOD removal rate and make the tank more compact, the sedimentation rate of activated sludge decreases significantly, and the required There is an undesirable problem in that it takes a long time to form a clear water zone, which makes it impossible to make the purification device more compact. Furthermore, in the conventional batch-type activated sludge treatment method that does not have a flow rate adjustment tank, if sewage flows in when supernatant water is withdrawn, a situation occurs where poorly purified water gets mixed into the supernatant water, and the poorly purified water gets mixed in. There was an undesirable problem in that the supernatant water was 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、省エネ的で且つ
浄化された良好な水質を安定して得ることがで
き、処理効果、汚泥生成量等の観点から合理化す
ることができ、しかも汚泥発生量を少なくするこ
とができる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 energy-saving and can stably obtain purified water of good quality, from the viewpoint of treatment efficiency, sludge generation amount, etc. It is an object of the present invention to provide a purification device having the characteristics of being able to rationalize the process and reduce the amount of sludge generated.
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、次のような構成されてい
る。この考案は、ブランケツト型メタン発酵槽と
回分式活性汚泥処理槽を直列結合したことを基本
的な技術的思想とする浄化装置であり、具体的に
詳述すると、下部に汚水の流入口を設け且つ上部
に流出口を設けたメタン発酵菌スラリーの存在す
る逆錐形状の嫌気性処理槽及び前記嫌気性処理槽
の下流に設置された回分式活性汚泥処理槽から成
り、前記回分式活性汚泥処理槽内の活性汚泥スラ
リーを前記嫌気性処理槽に返送する管路を設けた
ことを特徴とする浄化装置に関し、更に、前記嫌
気性処理槽の前記流出口と前記回分式活性汚泥処
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BOD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
メタン発酵槽即ち嫌気性処理槽と、回分式活性汚
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を浄化する回分式活性汚泥処理槽
とを直列結合することを特徴とする浄化装置に関
する。
This invention has the following configuration in order to solve the above problems and achieve the above objectives. The basic technical concept of this device is a series connection of a blanket-type methane fermentation tank and a batch-type activated sludge treatment tank. It also consists of an inverted cone-shaped anaerobic treatment tank with an outlet at the top in which methane-fermenting bacteria slurry exists, and a batch activated sludge treatment tank installed downstream of the anaerobic treatment tank, and the batch activated sludge treatment The purification device is characterized in that a pipe is provided for returning the activated sludge slurry in the tank to the anaerobic treatment tank, further comprising: the outlet of the anaerobic treatment tank and the bottom of the batch activated sludge treatment tank. In other words, the purification device is characterized in that the BOD in the wastewater is removed by methane fermentation, and
An upflow blanket type methane fermentation tank, that is, an anaerobic treatment tank, separates SS that easily settles, and residual water flows out from the methane fermentation section using a batch activated sludge method.
The present invention relates to a purification device characterized in that it is connected in series with a batch type activated sludge treatment tank for purifying BOD and residual SS.
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。即ち、この考案は、メタン発
酵菌の存在する逆錐形状の嫌気性処理槽、及び前
記嫌気性処理槽の下流に設置された回分式活性汚
泥処理槽から成り、前記回分式活性汚泥処理槽内
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、回分式活性汚
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、回分式活性汚泥処理槽
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
曝気式浄化槽の欠点である活性汚泥スラリーのキ
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
式活性汚泥処理の直列プロセスによつて浄化する
ので、余剰汚泥の生成量が少なくなる。しかも、
余剰活性汚泥を前段のメタン発酵槽にリサイクル
させるので、リサイクルによつて再び嫌気性消化
を受け、汚泥生成量が一層減少され、同時に生物
学的脱リン反応が促進される。
This invention is constructed as described above and operates as follows. That is, this invention consists of an inverted cone-shaped anaerobic treatment tank in which methane-fermenting bacteria exist, and a batch-type activated sludge treatment tank installed downstream of the anaerobic treatment tank. Since a supernatant water discharger that can be moved vertically is installed in the methane fermenter, most of the BOD and SS can be removed in the methane fermentation tank in the previous stage, and then the remaining BOD and SS can be removed by batch-type activated sludge treatment. SS can be further removed. Therefore, less power is required for aeration, and since there is no need to increase the concentration of MLSS in the batch type activated sludge treatment tank, the sedimentation rate of activated sludge can be increased. Furthermore, carryover of activated sludge slurry, which is a drawback of conventional separated aeration type septic tanks, does not occur, so clear treated water can always be obtained. Furthermore, since purification is performed through a series process of methane fermentation and batch activated sludge treatment, the amount of surplus sludge produced is reduced. Moreover,
Since the surplus activated sludge is recycled to the methane fermentation tank in the previous stage, the sludge undergoes anaerobic digestion again by recycling, further reducing the amount of sludge produced, and at the same time promoting the biological dephosphorization reaction.
この考案による浄化装置の一実施例を図面を参
照して詳述する。
An embodiment of the purification device according to this invention will be described in detail with reference to the drawings.
水洗トイレ等から排出された汚水は、流入管７
を通つて流入口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２からメタン発酵槽１内に
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について
は汚水が通常断続的に流入するパターンとなる。
メタン発酵槽１内には、メタン発酵菌スラリーＡ
が存在しており、汚水中のBODを分解する。汚
水流入時にはメタン発酵菌スラリーＡがブランケ
ツト状に膨脹し、また汚水の流入がない時には沈
積状態に戻るという脈動を繰り返す状態になる。
メタン発酵槽１の形状をコーン状即ち逆錐形状に
構成しておくことによつて、流入汚水とメタン発
酵菌スラリーＡとの効果的接触が実現される。更
に、メタン発酵槽１は、流入汚水中の沈降し易い
SSの沈澱分離機能を併せ持つている。なお、メ
タン発酵菌スラリーＡは処理を継続するに従つ
て、沈降性の良いペレツト状に変化して行くこと
がある。次いで、メタン発酵槽１において汚水中
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
槽１からの流出水は、メタン発酵槽１の上部水面
部に設けられた流出口３から流路５を通つて隣接
する回分式活性汚泥処理槽４の底部へと流れ、そ
こから回分式活性汚泥処理槽４内に流入する。回
分式活性汚泥処理槽４の底部の形状は、コーン状
即ち逆錐形状の傾斜底面１４に形成されている。 The sewage discharged from flush toilets, etc. is transferred to the inlet pipe 7.
It flows into the methane fermentation tank 1 from the lower part 2 of the inverted cone-shaped methane fermentation tank 1 through the inlet. For example, sewage flows into the methane fermentation tank 1 only when the toilet is used, so the sewage normally flows intermittently into the methane fermentation tank 1.
In the methane fermentation tank 1, methane fermentation bacteria slurry A
exists and decomposes BOD in wastewater. When sewage flows in, the methane-fermenting bacteria slurry A expands like a blanket, and when no sewage flows in, it returns to a sedimentary state, resulting in a repeating pulsating state.
By configuring the methane fermentation tank 1 to have a cone-like shape, that is, an inverted conical shape, effective contact between the inflowing wastewater and the methane-fermenting bacteria slurry A is realized. Furthermore, the methane fermentation tank 1 is prone to sedimentation in the inflowing wastewater.
It also has the precipitation separation function of SS. Note that as the treatment continues, the methane-fermenting bacteria slurry A may change into a pellet shape with good sedimentation properties. Next, in methane fermentation tank 1, most of the SS and BOD components that tend to settle in the wastewater (approximately 70% to 80%
The effluent water from the methane fermentation tank 1 from which the removal rate of It flows to the bottom of the treatment tank 4 and from there flows into the batch type activated sludge treatment tank 4. The bottom of the batch activated sludge treatment tank 4 is formed into a cone-shaped, ie, inverted cone-shaped inclined bottom surface 14 .
回分式活性汚泥処理槽４には、曝気ブロワー８
及び散気器９によつて好気的雰囲気に維持可能な
活性汚泥スラリーが存在しており、メタン発酵槽
１からの流出水中に少量残存している残留BOD
を速やかに分解する。回分式活性汚泥処理槽４に
おいては、所定時間曝気した後に、曝気ブロワー
８を停止する。それによつて活性汚泥を静置沈降
させ、その後、上澄水引抜きポンプ１２を作動し
て、フロート式の上澄水排水器１０から上澄水を
引き抜き、浄化処理水として管路１１から放流す
る。 The batch activated sludge treatment tank 4 has an aeration blower 8.
There is an activated sludge slurry that can be maintained in an aerobic atmosphere by an aerator 9, and a small amount of residual BOD remains in the outflow water from the methane fermentation tank 1.
Promptly disassemble. In the batch type activated sludge treatment tank 4, the aeration blower 8 is stopped after aeration is performed for a predetermined period of time. Thereby, the activated sludge is left to settle, and then the supernatant water drawing pump 12 is operated to draw the supernatant water from the float-type supernatant water drainer 10 and discharge it from the pipe line 11 as purified water.
また、回分式活性汚泥処理槽４内で蓄積生成す
る活性汚泥スラリーを、返送ポンプ１３によつて
上流のメタン発酵槽１に管路６を通つてリサイク
ルする。そこで、リサイクルされた活性汚泥スラ
リーは嫌気性消化を受け、汚泥生成量が更に減少
されると共に、同時に生物学的脱リン反応が促進
される。 Furthermore, the activated sludge slurry accumulated and generated in the batch type activated sludge treatment tank 4 is recycled through the pipe line 6 to the upstream methane fermentation tank 1 by the return pump 13. There, the recycled activated sludge slurry undergoes anaerobic digestion to further reduce the amount of sludge produced and at the same time promote the biological dephosphorization reaction.
ところで、回分式活性汚泥処理槽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８を停止し、活性汚泥を所定時間だけ静置沈
降させる。その後に、上澄水引抜きポンプ１２を
駆動して上澄水をフロート式上澄水排出器１０か
ら管路１１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１０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。 By the way, in the batch type activated sludge treatment tank 4, after aeration is performed for a predetermined time, the aeration blower 8 is stopped and the activated sludge is allowed to settle for a predetermined time. Thereafter, the supernatant water drawing pump 12 is driven to discharge the supernatant water from the float-type supernatant water discharger 10 through the pipe line 11. After that, by restarting the aeration again, the remaining residue in the effluent water of the methane fermentation tank 1 is removed.
Further remove BOD and residual SS. In the above embodiment, a float type is used as the supernatant water discharger 10, 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.
従来の回分式活性汚泥法では、BOD除去速度
を高めて槽自体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。しかし
ながら、この考案による浄化装置では、回分式活
性汚泥処理槽４の上流に上向流メタン発酵槽兼沈
澱槽即ちメタン発酵槽１を設けて、BODの大部
分を除去するので、回分式活性汚泥処理槽４を
MLSSの沈降速度が大きい2000〜3000mg／程度
に設定したとしても、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 method, when the activated sludge concentration (MLSS) is increased in order to increase the BOD removal rate and make the tank itself more compact, the sedimentation rate of activated sludge decreases significantly, and the required supernatant water zone It took a long time to form. However, in the purification apparatus according to this invention, an upflow methane fermentation tank and sedimentation tank, that is, a methane fermentation tank 1 is provided upstream of the batch type activated sludge treatment tank 4 to remove most of the BOD. Processing tank 4
Even if the sedimentation rate of MLSS is set to a high value 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、回分式活性汚泥処理槽４の底部
は逆錐形状に形成されており、この形状の回分式
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、次のような重要な機
能がある。即ち、回分式活性汚泥処理槽４におい
て、エアレーシヨンを停止し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７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）が回分式活性
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・ソープシヨン効果に
よつてBODが吸着される。この結果、浄化不充
分な汚水が回分式活性汚泥処理槽４から系外に放
流されるという現象は生じない。 As shown in the figure, the bottom of the batch type activated sludge treatment tank 4 is formed into an inverted conical shape, and the structure in which the outflow water from the methane fermentation tank 1 flows into the batch type activated sludge treatment tank 4 having this shape is as follows: It has important features such as: That is, in the batch type activated sludge treatment tank 4, even if sewage from the flush toilet flows into the inflow pipe 7 when the aeration is stopped and the activated sludge is settled and the supernatant water is flowing out, the flow rate of the sewage is Equal methane fermentation tank 1 effluent (inflow 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 BOD is adsorbed by the bio-sorption effect. As a result, a phenomenon in which insufficiently purified sewage is discharged from the batch activated sludge treatment tank 4 to the outside of the system does not occur.
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式活性汚泥処理槽
を直列結合するという構成であつて、しかも、前
段にコーン状の一定水位のメタン発酵槽を設け、
後段に水位を人為的に変動させる回分式活性汚泥
処理槽を設け、余剰活性汚泥スラリーを前段即ち
上流のメタン発酵槽にリサイクルさせる構成とし
たので、次のような効果を奏するものである。即
ち、上流の前記メタン発酵槽でBODとSSの大部
分即ち大半が除去されるので、回分式活性汚泥処
理槽のブロワー動力が少なくて済む。しかも、前
記回分式活性汚泥処理槽の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、前記回分式活性汚泥処理槽でエアレー
シヨン停止時に汚水の流入があつても、浄化不十
分な処理水が流出する恐れがない。更に、従来必
要とされた沈澱槽が不要であり、しかも従来の分
離曝気式浄化装置の欠点である活性汚泥スラリー
のキヤリオーバートラブルが発生しないので、常
に清澄な処理水を得ることができる。また、汚泥
発生量が少なく、リン酸の除去効果、即ち、脱リ
ン効果を向上させることができる。
As described above, this invention has a configuration in which an upflow methane fermentation tank with a sedimentation separation function and a batch type activated sludge treatment tank are connected in series. Set up a tank,
A batch-type activated sludge treatment tank is provided in the latter stage to artificially vary the water level, and surplus activated sludge slurry is recycled to the former stage, that is, the upstream methane fermentation tank, so that the following effects are achieved. That is, since most of the BOD and SS are removed in the upstream methane fermentation tank, the blower power of the batch activated sludge treatment tank can be reduced. Moreover, since it is not necessary to make the MLSS of the batch type activated sludge treatment tank high, the sedimentation rate of the activated sludge is extremely fast, and even if sewage flows into the batch type activated sludge treatment tank when the aeration is stopped. There is no risk of insufficiently purified treated water flowing out. Furthermore, since a settling tank, which is conventionally required, is not required, and the problem of carry-over of activated sludge slurry, which is a drawback of conventional separation aeration type purifiers, does not occur, clear treated water can always be obtained. Further, the amount of sludge generated is small, and the effect of removing phosphoric acid, that is, the effect of dephosphorization, can be improved.
図面はこの考案による浄化装置の一実施例を示
す概略図である。
１……メタン発酵槽、２……下部、３……流出
口、４……回分式活性汚泥処理槽、５……流路、
６……管路、７……流入管、８……曝気ブロワ
ー、９……散気器、１０……上澄水排出器、１１
……管路、１２……上澄水引抜きポンプ、１３…
…返送ポンプ、１４……傾斜面、Ａ……メタン発
酵菌スラリー。
The drawing is a schematic diagram showing an embodiment of the purification device according to this invention. 1... Methane fermentation tank, 2... Lower part, 3... Outlet, 4... Batch type activated sludge treatment tank, 5... Channel,
6... Pipeline, 7... Inflow pipe, 8... Aeration blower, 9... Diffuser, 10... Supernatant water discharger, 11
... Pipe line, 12 ... Supernatant water withdrawal pump, 13 ...
...Return pump, 14... Inclined surface, A... Methane fermentation bacteria slurry.
Claims (1)
を設けたメタン発酵菌スラリーの存在する逆錐
形状の嫌気性処理槽、及び前記嫌気性処理槽の
下流に設置された回分式活性汚泥処理槽から成
り、更に前記回分式活性汚泥処理槽内の活性汚
泥スラリーを前記嫌気性処理槽に返送する管路
を設けたことを特徴とする浄化装置。 (2) 前記嫌気性処理槽の前記流出口と前記回分式
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) 前記回分式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 treatment tank containing a slurry of methane-fermenting bacteria, which has a sewage inlet at the bottom and an outlet at the top; A purification device comprising a batch type activated sludge treatment tank installed downstream, and further comprising a pipe line for returning activated sludge slurry in the batch type activated sludge treatment tank to the anaerobic treatment tank. (2) The purification device according to claim 1, wherein the outlet of the anaerobic treatment tank and the bottom of the batch activated sludge treatment tank are connected through a channel. (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 |
|---|---|---|---|
| JP1986070745U JPH0133194Y2 (en) | 1986-05-13 | 1986-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986070745U JPH0133194Y2 (en) | 1986-05-13 | 1986-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62183600U JPS62183600U (en) | 1987-11-21 |
| JPH0133194Y2 true JPH0133194Y2 (en) | 1989-10-09 |
Family
ID=30912658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986070745U Expired JPH0133194Y2 (en) | 1986-05-13 | 1986-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0133194Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259990A (en) * | 2007-04-13 | 2008-10-30 | Sanritsu Kakoki Kk | Waste water treatment system and waste water treatment method |
-
1986
- 1986-05-13 JP JP1986070745U patent/JPH0133194Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62183600U (en) | 1987-11-21 |
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