JPH02169098A - Anaerobic fluidized-bed waste water treatment and device therefor - Google Patents
Anaerobic fluidized-bed waste water treatment and device thereforInfo
- Publication number
- JPH02169098A JPH02169098A JP1040388A JP4038889A JPH02169098A JP H02169098 A JPH02169098 A JP H02169098A JP 1040388 A JP1040388 A JP 1040388A JP 4038889 A JP4038889 A JP 4038889A JP H02169098 A JPH02169098 A JP H02169098A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- sludge
- reaction tank
- discharge pipe
- suspension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004065 wastewater treatment Methods 0.000 title claims description 10
- 239000010802 sludge Substances 0.000 claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002351 wastewater Substances 0.000 claims abstract description 24
- 239000000725 suspension Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 11
- 238000013022 venting Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 2
- 230000001737 promoting effect Effects 0.000 claims 2
- 241000272814 Anser sp. Species 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 abstract description 8
- 238000005192 partition Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007921 spray 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
Abstract
Description
【発明の詳細な説明】
童ヱ上皇剋■分団
本発明は、有機性廃水を嫌気的にスラッジと反応させて
浄化処理する方法において、生物学反応により生じたガ
スを利用してスラッジの流動層を形成することにより、
廃水を長期間に亘って効率的に処理する方法及び装置に
関する。[Detailed Description of the Invention] The present invention is a method for purifying organic wastewater by reacting it with sludge in an anaerobic manner. By forming
The present invention relates to a method and device for efficiently treating wastewater over a long period of time.
従来技術
従来、上記廃水を嫌気的に処理するには、スラッジブラ
ンケット方式の装置を用いて行う方法が利用されていた
。Prior Art Conventionally, a method using a sludge blanket type device has been used to treat the wastewater anaerobically.
しかし、このスラッジブランケット方式の装置を用いて
廃水処理する方法では、嫌気性スラッジを廃水と接触さ
せて反応させることにより発生するガスが上昇してスラ
ッジブランケントを乱すため、固液分離が実質上行われ
なくなり、反応槽内のスラッジが分散状態となって、上
記発生ガスの一部がスラッジに付着してスラッジがガス
と共に反応槽外へ流失するという問題がある。However, in this wastewater treatment method using a sludge blanket type device, solid-liquid separation is virtually impossible because the gas generated by bringing anaerobic sludge into contact with wastewater and causing a reaction rises and disturbs the sludge blanket. There is a problem in that the sludge in the reaction tank becomes dispersed, a part of the generated gas adheres to the sludge, and the sludge flows out of the reaction tank together with the gas.
このようなスラッジの流失を防ぐために、廃水の処理水
の取り出し部分にスラッジを回収するための樹脂装波板
などの充填材又は傾斜板を備えた沈降分離手段を設ける
ことが考慮されている。しかし、この方法ではスラッジ
自体の流失を防ぐことができるとしても、反応槽内のス
ラッジの２４度を高く保ち、かつ廃水とスラッジとの接
触を効率よく行って、安定した長期間の運転を実施する
ことはできない。In order to prevent such sludge from flowing away, it has been considered to provide a sedimentation separation means equipped with a filler such as a resin corrugated plate or an inclined plate for recovering sludge at a portion where treated wastewater is taken out. However, although this method can prevent the sludge itself from being washed away, it is necessary to maintain the sludge in the reaction tank at a high 24 degrees Celsius and to ensure efficient contact between wastewater and sludge to ensure stable long-term operation. I can't.
すなわち、上記のような効率的運転を行うためには、ス
ラッジを沈降性の良好な粒状乃至小塊状に短期的に生長
させ、スラッジを高深度に保って反応槽内を流動させる
ことが必要である。In other words, in order to perform the above-mentioned efficient operation, it is necessary to grow the sludge into particles or small lumps with good sedimentation properties in a short period of time, and to keep the sludge at a high depth and allow it to flow inside the reaction tank. be.
■が”しようとする１題
本発明は、叙上の状況に鑑みなされたものであって、有
機性廃水の嫌気性の生物学的反応により反応槽内に生成
したガスを利用してスラッジの流動層を形成して廃水と
スラッジの接触を良くＪ−るとともに、上記流０１層に
対流を形成してスラッジに付着したガスを分ＪＡＩシて
スラッジの沈降性を高めて反応槽内のスラッジ２店度を
高く保つことにより、前述した従来技術における問題点
を解消し７て、廃水を長期間に亘って効率的に処理する
ための方法及びそれに用いる！Ａ置を提供することを課
題とする。The present invention was developed in view of the above-mentioned circumstances, and is a method for treating sludge by utilizing the gas generated in the reaction tank by the anaerobic biological reaction of organic wastewater. A fluidized bed is formed to ensure good contact between wastewater and sludge, and convection is formed in the flow layer to separate the gas adhering to the sludge, increasing the sedimentation of the sludge and reducing the sludge in the reaction tank. It is an object of the present invention to provide a method for efficiently treating wastewater over a long period of time and a device for use in the process by eliminating the problems in the conventional technology described above by maintaining a high degree of wastewater. do.
以下本発明の詳細な説明する９
課星奎Ｍ吠するための」
本発明による廃水処理方法を、それに用いる処理装置を
例示した添付図に基いて、以ドに具体的に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below.The wastewater treatment method according to the present invention will be specifically described below with reference to the accompanying drawings illustrating a treatment apparatus used therein.
添付の第１図は、本発明に係る嫌気性流動層式廃水処理
装置の概略図を例示したものであって、この例示では反
応により生成したガスの補集手段が上方域と下方域にそ
れぞれ２段配設された反応槽を示す。なお、第１図は、
ガス袖丈設備が上下に２段配設された反応槽の場合を示
し、・ｔものである。The attached FIG. 1 is a schematic diagram of an anaerobic fluidized bed wastewater treatment apparatus according to the present invention, and in this example, means for collecting gas generated by reaction are provided in an upper region and a lower region, respectively. It shows a reaction tank arranged in two stages. In addition, Figure 1 shows
This shows the case of a reaction tank in which gas sleeve length equipment is arranged in two stages, upper and lower.
第１図において、１は嫌気性反応槽であり、底部には原
水供給管２が複数本設けられており、原水供給部２は槽
底から均一に散布するように噴出孔が配置されている。In Fig. 1, 1 is an anaerobic reaction tank, and a plurality of raw water supply pipes 2 are provided at the bottom of the tank, and the raw water supply section 2 has spout holes arranged to uniformly spray water from the bottom of the tank. .
上部には処理水排出管３が接続されている。A treated water discharge pipe 3 is connected to the upper part.
反応槽内部にはガス補集板４及び５が２段に設けてあり
、補集仮４．５の上部にはガス放出管６及び７がそれぞ
れ複数個接続されている。Gas collecting plates 4 and 5 are provided in two stages inside the reaction tank, and a plurality of gas discharge pipes 6 and 7 are connected to the upper part of the collecting plate 4.5, respectively.
ガス放出管６は反応槽内に設けられた２枚の隔壁１６に
接続され、隔壁１６の上部に更に適当な間隔を開けこ２
枚の隔壁１７が設けられており、隔壁１７の２枚の間隔
は隔壁１６のものより広い。The gas discharge pipe 6 is connected to two partition walls 16 provided in the reaction tank, and an appropriate space is provided above the partition walls 16.
Two partition walls 17 are provided, and the interval between the two partition walls 17 is wider than that of the partition wall 16.
ガス放出管７は下部の水封された密閉のガス補集部８に
接続され、そのガス補集部８にはガス抜き出し管１２が
接続されている。The gas discharge pipe 7 is connected to a water-sealed gas collection section 8 at the bottom, and a gas extraction pipe 12 is connected to the gas collection section 8 .
反応槽１とガス補集板４．５との間のガス捕集部９、ｌ
Ｏには各々ガス抜き出し管１３が接続され、その先ζ４
二ｔＪＲ節弁Ｉ４とｄｉ量計１５が設備されている。Gas collection section 9, l between reaction tank 1 and gas collection plate 4.5
A gas venting pipe 13 is connected to each O, and the tip ζ4
Two tJR control valves I4 and a DI meter 15 are installed.
図中１１はガスによるスラッジの上昇流を抑える遮蔽板
であり、スラッジ懸濁液の対流を乱さない為に設けられ
ている。In the figure, reference numeral 11 denotes a shielding plate that suppresses the upward flow of sludge caused by gas, and is provided so as not to disturb the convection of the sludge suspension.
このように構成された嫌気性流動層式廃水処理装置を用
いて廃水を処理するには、廃水の原水を供給管２から反
応槽ｌ内に供給し、反応槽内（ｆ）の部分のスラッジと
反応させてガスを生成し、そのガスはガス補集板４によ
りガス補集部９に補集され、ガス放出管６より全量又は
その一部が放出され、その量は反応槽内のスラッジ懸濁
液の適度の対流を形成させる為に、ガス補集部９に接続
しているガス抜き管１３の先に設けられた。四節弁１４
及びガス流量計１５により必要量系外に放出して調節さ
れる。In order to treat wastewater using the anaerobic fluidized bed wastewater treatment apparatus configured as described above, the raw water of the wastewater is supplied from the supply pipe 2 into the reaction tank l, and the sludge in the part (f) inside the reaction tank is The gas is collected by the gas collection plate 4 in the gas collection part 9, and the entire amount or a part thereof is released from the gas discharge pipe 6, and the amount is equal to the sludge in the reaction tank. In order to form appropriate convection of the suspension, it was provided at the end of the gas vent pipe 13 connected to the gas collection section 9. Four section valve 14
The required amount is discharged to the outside of the system by the gas flow meter 15 and regulated.
ガス放出管６をエアリフトにより通過するスラッジ懸濁
液の量は、原水供給管２より入る原水の量に比較して大
量であり、スラッジがガス放出管６を通過する際、乱流
により適度の攪拌を受け、スラッジに付着したガスが分
離され沈降性の良いスラッジ懸濁液となって、ガス補集
板４と遮金板１１との隙間を下方に流れ、図中矢印■の
ような対流を形成しスラッジは適度の流動をする。The amount of sludge suspension that passes through the gas discharge pipe 6 by airlift is large compared to the amount of raw water that enters from the raw water supply pipe 2, and when the sludge passes through the gas discharge pipe 6, it is moderately Under the agitation, the gas adhering to the sludge is separated and becomes a sludge suspension with good sedimentation properties, which flows downward through the gap between the gas collection plate 4 and the shielding plate 11, creating convection as shown by the arrow ■ in the figure. , and the sludge has a moderate flow.
ガス、放出管６を通過したガスは、反応槽内（ＩＩ）の
部うｊ・で２枚の隔壁１６の中を上昇し、次にスラッジ
′！、Ｉ濁液のＬ異速度が大きくなり過ぎない為に、２
戊の隔壁１６の間隔より広い２枚の隔壁１７の中を上昇
し、スラッジ：ｙ、 、２ 液の対流を乱さずに図中矢
印■のようなスラッジ！Ｑ、 濁液の対流を形成し、ス
ラッジを流動さｌ、反応槽内（ｎ）の部分の廃水とスラ
ッジの接触を良好にし、反応を早め、尚かつスラッジの
粒状化ないし小塊状化を促進する。The gas that has passed through the discharge pipe 6 rises inside the two partition walls 16 in the reaction tank (II), and then becomes sludge'! , In order to prevent the L different velocity of the I suspension from becoming too large, 2
The sludge rises through the two partition walls 17 that are wider than the gap between the two partition walls 16, and the sludge looks like the arrow ■ in the figure without disturbing the convection of the liquid! Q. Forms convection of the turbid liquid, fluidizes the sludge, improves the contact between the wastewater and the sludge in the part (n) inside the reaction tank, speeds up the reaction, and also promotes granulation or small agglomeration of the sludge. do.
更に反応槽内（ＩＩ）の部分で生成されたガスと、ガス
放出管６を通過したガスは、ガス補集板５によりガス補
集部１０に補集され、その全は又はその一部がガス放出
管７を通過し、ガス補集部８に補集されたガス抜き管１
２より全量系外に取り出される。Furthermore, the gas generated in the reaction tank (II) and the gas that has passed through the gas discharge pipe 6 are collected by the gas collection plate 5 into the gas collection section 10, and all or part of them are collected by the gas collection section 10. The gas venting pipe 1 passes through the gas releasing pipe 7 and is collected by the gas collecting section 8
2, the entire amount is taken out of the system.
ガス放出管７を通過するガス量は、ガス補Ｗ部１０に接
続されたガス抜き管１３の先に設けられた調節弁１４及
びガス流量計１５により、ガス補集部９と同様に必要置
針外に放出して調節さ才する。The amount of gas passing through the gas discharge pipe 7 is controlled by a control valve 14 and a gas flow meter 15 provided at the end of the gas vent pipe 13 connected to the gas supplementary W part 10, and the amount of gas passing through the gas discharge pipe 7 is controlled by the necessary indicator as in the gas collection part 9. It is regulated by releasing it to the outside.
ガス放出管７をエアリフトにより大量のスラッジ懸濁液
が上弄し、その際スラッジに付着しているガスが分離さ
れ、沈降性の良いスシノジｊ脈澗凛となって反応槽内〔
田〕の部分の図中矢印■のような対流を形成し、スラッ
ジの反応槽外への放出が防止される。A large amount of sludge suspension is poured over the gas discharge pipe 7 by an air lift, and at this time, the gas adhering to the sludge is separated and becomes a sludge with good sedimentation properties, which is discharged into the reaction tank.
Convection currents as shown by arrows ■ in the figure are formed in the area marked [field], and the discharge of sludge to the outside of the reaction tank is prevented.
すなわち、放出管７を通過した大量の沈降（／１の良い
スラッジ）グＥ′Ｊ液の一部（原水供給管２よ＆、ｉ人
った原水の量に等しい星）が反応槽内（ＩＩＩ）の部分
でスラッジと処理水とに分離され図中矢印Ｏ）のように
流れ、反応槽上部に接続された処理水排出管３から排出
される。In other words, a part of the large amount of settled (good sludge) E'J liquid that passed through the discharge pipe 7 (a star equal to the amount of raw water in the raw water supply pipe 2) is inside the reaction tank ( In the section III), the sludge and treated water are separated, flow as indicated by the arrow O) in the figure, and are discharged from the treated water discharge pipe 3 connected to the upper part of the reaction tank.
次に、上部した有機性廃水の処理方法の操作を変えた変
形例及びそのための装置の設計−ヒの変形例を併せて説
明する。Next, a modified example in which the operation of the method for treating the upper organic wastewater is changed and a modified example of the design of the apparatus for the same will be described together.
ここに添付の第２図は、反応により生成したガスの捕集
手段が上下に二段配設され、上方域のガス放出管のガス
リフトを別に設けたガス導入設備によりｌ１ｌｉ ｉＨ
されたガスで１〒い、余剰ガスは系外に設けたガス抜き
管より抜きとるにした場合に用いる装置の概略図を示し
たものである。なお、第３図は一ヒ記ガス導入設備を例
示したものである。また、第４図は反応により生成した
ガスの補集手段が上方域に一段配設された反応槽を示し
たものである。Figure 2 attached here shows that the l1li iH system is equipped with gas introduction equipment in which the means for collecting the gas produced by the reaction is arranged in two stages above and below, and a gas lift for the gas discharge pipe in the upper region is provided separately.
This figure shows a schematic diagram of an apparatus used in a case where the gas is used for 1 hour, and the excess gas is extracted from a gas vent pipe provided outside the system. Incidentally, FIG. 3 shows an example of the above gas introduction equipment. Further, FIG. 4 shows a reaction tank in which a means for collecting gas produced by the reaction is arranged in one stage in the upper region.
第２図において１８はガス導入設備を示し、図中のイ・
の他の符号は第１図と間柱の箇所を示し、また第３図に
おける１８以外の符号も第１図と同様のしｉ所を示す。In Fig. 2, 18 indicates the gas introduction equipment.
The other symbols in FIG. 1 indicate the studs, and the symbols other than 18 in FIG. 3 indicate the same locations as in FIG. 1.
次Ｃ１二、第４図に示した反応槽とそれによる処理操作
について説明すると、嫌気性反応槽１の底部に原水供給
管２が複数本設置されており、原水供給部には原水を槽
底から均一に散布するように噴出孔が配置されている。Next, to explain the reaction tank shown in FIG. The nozzles are arranged so that the water is evenly distributed.
反応槽１の上部には処理水排出管３が接続されている。A treated water discharge pipe 3 is connected to the upper part of the reaction tank 1 .
また、反応槽内部にはガス捕集板５が設けられており、
捕集板５の上部にはガス放出管７が複数個接続されでい
ろ。Furthermore, a gas collection plate 5 is provided inside the reaction tank.
A plurality of gas discharge pipes 7 are connected to the upper part of the collection plate 5.
ガス放出管７は下部の水封された密閉のガス補集部８に
接続され、そのガス補集部８にはガス抜き出し管１２が
接続されている。The gas discharge pipe 7 is connected to a water-sealed gas collection section 8 at the bottom, and a gas extraction pipe 12 is connected to the gas collection section 8 .
反応槽ｌとガス補集板５との間のガス補集部１０にはガ
ス抜き出し管が接続され、その先に調節弁１４と流量計
１５が設備されている。A gas extraction pipe is connected to a gas collection section 10 between the reaction tank 1 and the gas collection plate 5, and a control valve 14 and a flow meter 15 are installed at the end of the gas extraction pipe.
図中ＩＩはガスによるスラッジの上界流を抑える遮蔽板
であり、スラッジ懸濁液の対流を乱さない為に設けられ
ている。In the figure, II is a shielding plate that suppresses the upper flow of sludge caused by gas, and is provided so as not to disturb the convection of the sludge suspension.
このように形成された嫌気性流動層式廃水処理装置を用
いて廃水を処理するには、廃水の原水を供給管２から反
応槽１内供給し、反応槽内のスラッジと反応させてガス
を生成させる。この生成ガスはガス補集板５によりガス
補集部１０に補集され、ガス放出管７より全量又はその
一部が放出され、その量は反応槽内のスラッジ懸濁液の
適度の対流を形成させる為に、ガス補集部ＩＯに接続し
ているガス抜き管１３の先に設けられた調節弁１４及び
ガス流量計１５により必要量系外に放出して調節される
。In order to treat wastewater using the anaerobic fluidized bed wastewater treatment device formed in this way, the raw water of the wastewater is supplied into the reaction tank 1 from the supply pipe 2, and is reacted with the sludge in the reaction tank to generate gas. Generate. This generated gas is collected by the gas collection part 10 by the gas collection plate 5, and all or part of it is released from the gas discharge pipe 7, and the amount is determined by the appropriate convection of the sludge suspension in the reaction tank. In order to form the gas, the necessary amount is discharged to the outside of the system and regulated by a control valve 14 and a gas flow meter 15 provided at the end of a gas vent pipe 13 connected to the gas collection section IO.
ガス放出管７をガスリフトにより通過するスラッジ懸濁
液の量は、原水供給管２より入る原水の量に比較して大
量であり、スラッジがガス放出管７を通過する際、乱流
により適度のＩＷ性を受け、スラッジに付着したガスが
分離され沈降性の良いスラッジ懸ＥＪ液となって、ガス
捕集板５と遮薇板１１との隙間を下方に流れ、図中矢印
のような対流を形成しスラッジは適度の流動をし、尚か
つスラッジの反応槽外へ流出が防止される。The amount of sludge suspension that passes through the gas discharge pipe 7 by the gas lift is large compared to the amount of raw water that enters from the raw water supply pipe 2, and when the sludge passes through the gas discharge pipe 7, it is moderately Due to the IW properties, the gas adhering to the sludge is separated and becomes a sludge-suspending EJ liquid with good sedimentation properties, which flows downward through the gap between the gas collection plate 5 and the shielding plate 11, creating convection as shown by the arrow in the figure. is formed, the sludge has an appropriate flow, and the sludge is prevented from flowing out of the reaction tank.
すなわら、ガス放出管７を通過した人里の沈降性の良い
スラッジ懸濁液の一部（原水供給管２より入った原水の
量に等しい量）がスラッジと処理水とに分離され図中矢
印のように流れ、反応槽上部に接続された処理水排出管
３から排出される。In other words, a portion of the sludge suspension with good settling properties in the human village that has passed through the gas discharge pipe 7 (an amount equal to the amount of raw water that entered through the raw water supply pipe 2) is separated into sludge and treated water. The water flows as indicated by the middle arrow and is discharged from the treated water discharge pipe 3 connected to the upper part of the reaction tank.
また、第５図に示した装置は、反応により生成したガス
の補集手段が反応槽の上方域に一段配設されていて、ガ
ス放出管のガスリフトをガス導入設備１８により補集さ
れたガスで行い、余剰ガスは系外にガス抜き管１３より
抜き取るように設計したものである。In addition, in the apparatus shown in FIG. 5, means for collecting gas generated by the reaction is arranged in one stage in the upper region of the reaction tank, and the gas lift of the gas discharge pipe is used to collect the gas collected by the gas introduction equipment 18. The design is such that the excess gas is extracted from the system through a gas vent pipe 13.
衾班ｐ１果
以上述べたとおり、本発明は、有機性廃水をスラッジと
接触させ、嫌気性の生物学的反応により処理するにあた
り、反応により律じた生成するガスを利用して流動させ
ることにより、スラッジを短！ｌＪ１間に沈降性の良い
粒状乃至は小塊に成り、さ・已ることが可能であり、か
つスラッジを菌濃度に保って高負荷の廃水処理を低コス
トの設合；４費、運転費及びメンテナンス費で長間間に
亘つ′ζ安定に行うことができる利点をｆ丁する。As stated above, the present invention brings organic wastewater into contact with sludge and treats it through an anaerobic biological reaction, by fluidizing it using the gas produced by the reaction. , shorten the sludge! The sludge forms granules or small lumps with good sedimentation properties between lJ1 and can be washed away, and the sludge is maintained at a bacterial concentration to perform high-load wastewater treatment at low cost; 4 costs and operating costs. It also has the advantage of being able to operate stably over a long period of time with low maintenance costs.
添付の第°１図は本発明に係る方法を実施４−るための
装置の概略図を例示したものであり、・−合２図は、第
１図に示した装置において反応槽のに方城に設けられた
ガス放出管のガスリフトを行うためのガ、゛己グ人設（
１１・：ｌを別に設けたＩ〉のを例示したものでありで
、第ｊ（図はこのガス導入設６ｊｌｌ ’に拡大し′（
示した説明図である６
また、第４図は、第１図に示した装置において反応二こ
、にり住成したガスの補集手段を反応槽の上方域に１段
のみ配設した場合を例示したものであり、第５図は一］
二記第４図に示したものにおいて、ガス放ｊ１１管のガ
スリフトを行うためのガス導入設備をＯ省えた場合を例
示したものである。
図において、
】
４及び５
９及び１０・
６及び７−・・・
１６及び１７
・反応槽
ガス袖集仮
ガスボルダ
ガス捕集部
ガス放出管
−・−隔壁
・・−ガス抜き管
・−ガス導入設０１１７
第２図
第１図
第４図
第５図The attached Figure 1 illustrates a schematic diagram of an apparatus for carrying out the method according to the present invention, and Figure 2 shows the direction of the reaction tank in the apparatus shown in Figure 1. The gas and human resources for lifting the gas discharge pipe installed in the castle (
This is an example of I〉 in which 11.:l is separately provided, and
Fig. 4 is an explanatory diagram showing a case in which only one stage of collecting means for the gas formed by the reaction is provided in the upper region of the reaction tank in the apparatus shown in Fig. 1. Figure 5 is an example of
This is an example of the case where the gas introduction equipment for performing the gas lift of the gas discharge pipe J11 can be omitted in the case shown in FIG. In the figure: ] 4 and 5 9 and 10 6 and 7-... 16 and 17 Reaction tank gas sleeve Temporary gas boulder Gas collection section Gas discharge pipe - Partition wall - Gas vent pipe - Gas introduction equipment 0117 Figure 2 Figure 1 Figure 4 Figure 5
Claims (4)
からなる原水を、反応槽の底部より供給して反応槽内の
下方域におけるスラッジと反応させ、生成したガスの全
部またはその一部を反応槽内の下方域に設けたガス放出
管より放出させ、その際ガスリフト効果によりガス放出
管を通過する該スラッジ懸濁液に乱流を生じさせてスラ
ッジに付着したガスを分離し、また上記ガス放出管から
放出されるガスの一部を、ガス補集部に設けたガス抜き
装置より系外に取出す手段により、槽内のスラッジ懸濁
液の対流量を調節する段階、次いで反応槽内に放出され
た上記ガスの上昇によりスラッジ懸濁液の対流層を形成
してスラッジを流動させ、反応槽の中間域における廃水
とスラッジとの接触を良好にして反応を促進させると共
に、スラッジを粒状または小塊状にする段階、及び上記
反応槽の中間域での反応により生成したガスと、前記段
階においてガス放出管により放出されたガスを補集し、
補集したガスの全部または一部を反応槽内の上方域に設
けたガス放出管より放出させ、その際ガスリフト効果に
より、ガス放出管を通過する該スラッジ懸濁液に乱流を
生じさせてスラッジに付着したガスを分離して反応槽上
部に設けたガスホルダーに発生ガスを捕集し、また上記
ガス放出管から放出されるガスの一部をガス捕集部に設
けたガス抜き装置により系外へ取出す手段、又はガス放
出管に設けられたガス導入設備により必要量ガスをガス
放出管に導入し、余剰ガスを系外へ取り出す手段により
反応槽の上方域におけるスラッジ懸濁液の対流量を調節
する段階、およびガスを放出した沈降性の良いスラッジ
は下方へ流下して、スラッジ懸濁液をスラッジと処理水
とに分離し、処理水を反応槽の上部から排出する段階か
ら成ることを特徴とする有機性廃水を嫌気性流動層式に
より処理する方法。(1) In anaerobic treatment of organic wastewater, raw water consisting of organic wastewater is supplied from the bottom of the reaction tank and reacts with the sludge in the lower area of the reaction tank, and all or part of the gas produced is removed. The sludge suspension is discharged from a gas discharge pipe provided in the lower region of the reaction tank, and at this time, the gas lift effect causes turbulence in the sludge suspension passing through the gas discharge pipe to separate the gas adhering to the sludge. A step of adjusting the convective flow rate of the sludge suspension in the tank by taking out a part of the gas released from the gas discharge pipe out of the system through a gas venting device installed in the gas collection section, and then The rise of the above gas released into the reactor forms a convection layer of the sludge suspension, causing the sludge to flow, promoting good contact between the wastewater and the sludge in the middle region of the reaction tank, promoting the reaction, and turning the sludge into granules. or collecting the gas generated by the reaction in the intermediate region of the reaction tank and the gas released by the gas release pipe in the step of forming small lumps,
All or part of the collected gas is released from a gas release pipe provided in an upper area within the reaction tank, and at this time, due to the gas lift effect, turbulence is generated in the sludge suspension passing through the gas release pipe. The gas adhering to the sludge is separated and the generated gas is collected in a gas holder installed at the top of the reaction tank, and a part of the gas released from the gas release pipe is collected by a gas venting device installed in the gas collection section. The sludge suspension in the upper area of the reaction tank is controlled by means for taking out the gas out of the system, or by introducing the required amount of gas into the gas discharge pipe using gas introduction equipment installed in the gas discharge pipe, and by means for taking out excess gas out of the system. It consists of a step of adjusting the flow rate, and a step of letting the sludge with good settling properties that have released gas flow downward, separating the sludge suspension into sludge and treated water, and discharging the treated water from the upper part of the reaction tank. A method for treating organic wastewater using an anaerobic fluidized bed method.
で行う請求項（１）に記載の嫌気性流動層式廃水処理方
法。(2) The anaerobic fluidized bed wastewater treatment method according to claim (1), wherein gas collection and gas release are performed only in the upper region of the reaction bed.
で生成したガスの少くとも一部と処理水を別々に取り出
す手段を備え、反応槽内部には、垂直方向に多段方式で
上記生成ガスの補集手段を備えるとともに上記多段の各
段にはガス量の調節手段を備えており、及び反応槽の下
方域にはガスを取り出す手段及びガス放出管を配設して
いて、該ガス放出管を通して上記補集手段により補集さ
れたガスの少くとも一部を反応槽内に放出して該槽内に
スラッジ懸濁液の流動層を形成するようになし、かつ反
応槽の中間域に雁スラッジ懸濁液の対流手段を配設した
ことを特徴とした嫌気性流動層式廃水処理装置。(3) A raw water supply means is provided at the bottom of the reaction tank, and a means for separately taking out at least a part of the gas generated in the reaction tank and the treated water is provided at the top, and the inside of the reaction tank is provided with a vertical multi-stage system. In addition to comprising means for collecting the generated gas, each stage of the multi-stage is equipped with a means for adjusting the amount of gas, and a means for extracting the gas and a gas discharge pipe are arranged in the lower region of the reaction tank, At least a part of the gas collected by the collecting means is discharged into the reaction tank through the gas discharge pipe to form a fluidized bed of sludge suspension in the tank, and An anaerobic fluidized bed wastewater treatment device characterized by having a convection means for wild goose sludge suspension in the intermediate region.
請求項（３）に記載の嫌気性流動層式廃水処理装置。(4) The anaerobic fluidized bed wastewater treatment apparatus according to claim (3), wherein the gas collecting means is provided only in the upper region of the reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1040388A JPH02169098A (en) | 1988-09-14 | 1989-02-22 | Anaerobic fluidized-bed waste water treatment and device therefor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22834188 | 1988-09-14 | ||
| JP63-228341 | 1988-09-14 | ||
| JP1040388A JPH02169098A (en) | 1988-09-14 | 1989-02-22 | Anaerobic fluidized-bed waste water treatment and device therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02169098A true JPH02169098A (en) | 1990-06-29 |
| JPH0549360B2 JPH0549360B2 (en) | 1993-07-26 |
Family
ID=16874944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1040388A Granted JPH02169098A (en) | 1988-09-14 | 1989-02-22 | Anaerobic fluidized-bed waste water treatment and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02169098A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624565A (en) * | 1994-09-20 | 1997-04-29 | Lyonnaise Des Eaux | Method of Regulating Aeration in a basin for bilogical treatment of wastewater |
| KR100327689B1 (en) * | 1999-11-24 | 2002-03-08 | 진도토건(주) | Apparatus for the biologically treatment of high strength waste-water |
| JP2005342691A (en) * | 2004-06-07 | 2005-12-15 | Able:Kk | Methane fermentation treatment method and device |
| JP2009178628A (en) * | 2008-01-29 | 2009-08-13 | Ihi Corp | Apparatus for treating anaerobic waste water |
| CN102491511A (en) * | 2011-12-09 | 2012-06-13 | 四川四通欧美环境工程有限公司 | Efficient anaerobic bioreactor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60179398U (en) * | 1984-05-09 | 1985-11-28 | 日本甜菜製糖株式会社 | anaerobic digester |
| JPS61174995A (en) * | 1985-01-29 | 1986-08-06 | Nippon Beet Sugar Mfg Co Ltd | Anaerobic digestion vessel |
-
1989
- 1989-02-22 JP JP1040388A patent/JPH02169098A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60179398U (en) * | 1984-05-09 | 1985-11-28 | 日本甜菜製糖株式会社 | anaerobic digester |
| JPS61174995A (en) * | 1985-01-29 | 1986-08-06 | Nippon Beet Sugar Mfg Co Ltd | Anaerobic digestion vessel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624565A (en) * | 1994-09-20 | 1997-04-29 | Lyonnaise Des Eaux | Method of Regulating Aeration in a basin for bilogical treatment of wastewater |
| KR100327689B1 (en) * | 1999-11-24 | 2002-03-08 | 진도토건(주) | Apparatus for the biologically treatment of high strength waste-water |
| JP2005342691A (en) * | 2004-06-07 | 2005-12-15 | Able:Kk | Methane fermentation treatment method and device |
| JP2009178628A (en) * | 2008-01-29 | 2009-08-13 | Ihi Corp | Apparatus for treating anaerobic waste water |
| JP4661882B2 (en) * | 2008-01-29 | 2011-03-30 | 株式会社Ｉｈｉ | Anaerobic wastewater treatment equipment |
| CN102491511A (en) * | 2011-12-09 | 2012-06-13 | 四川四通欧美环境工程有限公司 | Efficient anaerobic bioreactor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0549360B2 (en) | 1993-07-26 |
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