JPH0352157Y2 - - Google Patents
Info
- Publication number
- JPH0352157Y2 JPH0352157Y2 JP741886U JP741886U JPH0352157Y2 JP H0352157 Y2 JPH0352157 Y2 JP H0352157Y2 JP 741886 U JP741886 U JP 741886U JP 741886 U JP741886 U JP 741886U JP H0352157 Y2 JPH0352157 Y2 JP H0352157Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- liquid
- pipe
- tank body
- circulation pipe
- 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
- 239000007788 liquid Substances 0.000 claims description 28
- 230000029087 digestion Effects 0.000 claims description 10
- 239000011550 stock solution Substances 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000006228 supernatant Substances 0.000 claims description 7
- 241001148471 unidentified anaerobic bacterium Species 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000000855 fermentation Methods 0.000 description 4
- 230000004151 fermentation Effects 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000013022 venting 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
- 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
- Biological Treatment Of Waste Water (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
本考案は、有機物質を含む廃水の嫌気性処理に
おいて用いる嫌気性消化槽に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to an anaerobic digestion tank used in the anaerobic treatment of wastewater containing organic substances.
従来の技術
従来、有機物質を含有する廃水を、嫌気性菌に
より生物処理する際、嫌気性消化槽において、被
処理供給液と菌体(汚泥)とは、主として完全混
合撹拌方式で処理されていた。Conventional technology Conventionally, when wastewater containing organic substances is subjected to biological treatment using anaerobic bacteria, the feed liquid to be treated and the bacterial bodies (sludge) are mainly treated by complete mixing and stirring in the anaerobic digestion tank. Ta.
考案が解決しようとする問題点
従来、有機物質を含有する廃水を、嫌気性消化
槽により処理する際、上記のごとく、主に完全混
合撹拌方式で行なわれているため、被処理液と菌
体(汚泥)との滞留時間が同一であり、消化(メ
タン発酵)を十分に行なうには10〜30日という長
時間を要し、そのため消化槽を大容量のものにす
ることが必要になるという問題点があつた。Problems that the invention aims to solve Conventionally, when wastewater containing organic substances is treated in an anaerobic digestion tank, as mentioned above, the complete mixing and agitation method is mainly used. (sludge), and it takes a long time of 10 to 30 days to fully digest (methane fermentation), so it is necessary to have a large-capacity digester. There was a problem.
本考案は、従来の嫌気性消化槽における、上記
のごとき問題点を解決しようとするものである。 The present invention attempts to solve the above-mentioned problems in conventional anaerobic digestion tanks.
問題点を解決するための手段
本考案の嫌気性消化槽は、担体に嫌気性菌を担
持させて、被処理液中を流動させるようにした嫌
気性消化槽であつて、槽本体上部に溢流口を設
け、槽本体上部に設けた上澄液取出口と、槽本体
下部に設けた配液管とを連通する循環管路を設
け、該循環管路中に原液供給管を接続し、上面全
面に多数の逆四角錐状の凹部を形成した分散板を
槽内下部に敷設し、該分散板の各逆四角錐状の凹
部の中心部に前記配液管から送液される循環液を
噴出させる噴出ノズルを配設したことを特徴とす
るものである。Means for Solving the Problems The anaerobic digestion tank of the present invention is an anaerobic digestion tank in which anaerobic bacteria are supported on a carrier and allowed to flow through the liquid to be treated. A flow port is provided, a circulation pipe is provided that communicates a supernatant liquid outlet provided at the top of the tank body with a liquid distribution pipe provided at the bottom of the tank body, and a stock solution supply pipe is connected to the circulation pipe, A distribution plate having a large number of inverted quadrangular pyramid-shaped recesses formed on the entire upper surface is laid in the lower part of the tank, and the circulating liquid is sent from the liquid distribution pipe to the center of each inverted square pyramid-shaped recess of the distribution plate. It is characterized by being equipped with a jet nozzle that spouts out.
作 用
上記構成により、循環管路から上澄液および原
液を、分散板上面の多数の逆四角錐状凹部の中央
部に配設された噴出ノズルから噴出させ、各凹部
の斜面沿いに噴流状の上向流を形成して、被処理
液中の嫌気性菌を担持した担体を流動させること
ができ、被処理液中の菌体を高濃度に維持して効
率的な消化(メタン発酵)が行なわれる。Effect With the above configuration, the supernatant liquid and the stock solution are ejected from the circulation pipe from the ejection nozzle arranged at the center of the many inverted quadrangular pyramid-shaped recesses on the upper surface of the dispersion plate, and a jet stream is formed along the slope of each recess. By forming an upward flow, it is possible to flow the carrier carrying the anaerobic bacteria in the liquid to be treated, maintaining a high concentration of bacterial cells in the liquid to be treated, resulting in efficient digestion (methane fermentation). will be carried out.
実施例
本考案の実施例を図面に基づいて説明する。第
1図〜第3図は本考案の第1実施例を示す。1は
槽本体であり、槽本本1上部に溢流口2が設けら
れ、かつ槽本体1の上部の前記溢流口2より下側
に取付けた上澄液取出口3と槽本体1の底部に取
付けた配液管4との間を、ポンプ5を介して連通
する循環管路6が設けられ、該循環管路6に原液
供給管7がエゼクタ8を介して接続され、循環管
路6内の液流中に、エゼクタ8の作用で原液が混
入されるように構成されている。なお原液供給管
7から循環管路6内への原液の混入はポンプ等の
手段を用いて行なつてもよい。槽内下部には、分
散板9が敷設されており、該分散板9の上面全面
には多数の逆四角錐状の凹部10が規則的な配列
で形成されて、各凹部10の中央部に貫通孔11
が設けられ、かつ前記中心部上に前記貫通孔11
に接続された、横方向に噴流を噴出し得る噴出ノ
ズル12が配設されている。13はガス抜きであ
る。Embodiment An embodiment of the present invention will be described based on the drawings. 1 to 3 show a first embodiment of the present invention. Reference numeral 1 denotes a tank main body, in which an overflow port 2 is provided at the top of the tank main body 1, and a supernatant liquid outlet 3 installed below the overflow port 2 at the top of the tank main body 1, and a bottom of the tank main body 1. A circulation pipe 6 is provided which communicates with the liquid distribution pipe 4 attached to the pump 5 via a pump 5, and a stock solution supply pipe 7 is connected to the circulation pipe 6 via an ejector 8. It is configured such that the stock solution is mixed into the liquid flow inside by the action of the ejector 8. The stock solution may be mixed into the circulation pipe 6 from the stock solution supply pipe 7 using means such as a pump. A dispersion plate 9 is installed in the lower part of the tank, and a large number of inverted quadrangular pyramid-shaped recesses 10 are formed in a regular arrangement on the entire upper surface of the dispersion plate 9. Through hole 11
is provided, and the through hole 11 is provided on the center portion.
A jet nozzle 12 is provided which is connected to and can jet a jet flow laterally. 13 is gas venting.
第4図〜第6図は、本考案の第2実施例を示
し、槽本体21の上部に溢流口22が設けられ、
かつ槽本体21の上部の前記溢流口22より下側
に取付けた上澄液取出口23と槽本体1の下部に
複数本に分岐して取付けられた配液管24との間
を、ポンプ25を介して連通する循環管路26が
設けられ、該循環管路26に原液供給管27がエ
ゼクタ28を介して接続され、循環管路26内の
液流中に、エゼクタ28の作用で原液が混入され
るように構成されている。前記配液管24の下側
の槽内に、分散板29が敷設されており、該分散
板29の上面全面に多数の逆四角錐状の凹部30
が規則的な配列で形成されて、該凹部30の中心
部上に、前記配液管24の下側に連通されて、噴
流を噴出し得る噴出ノズル31が配設されてい
る。32は、ガス抜きである。 4 to 6 show a second embodiment of the present invention, in which an overflow port 22 is provided in the upper part of the tank body 21,
In addition, a pump connects a supernatant liquid outlet 23 installed below the overflow port 22 at the top of the tank body 21 and a liquid distribution pipe 24 installed in a plurality of branches at the bottom of the tank body 1. A circulation pipe 26 is provided which communicates with the circulation pipe 25, and a stock solution supply pipe 27 is connected to the circulation pipe 26 via an ejector 28. It is configured so that it is mixed in. A dispersion plate 29 is installed in the tank below the liquid distribution pipe 24, and a large number of inverted quadrangular pyramid-shaped recesses 30 are formed on the entire upper surface of the dispersion plate 29.
are formed in a regular array, and a jet nozzle 31 is disposed above the center of the recess 30, communicating with the lower side of the liquid distribution pipe 24, and capable of spouting a jet stream. 32 is a gas vent.
上記のごとく構成された嫌気性消化槽において
は、槽内上澄液が、循環管路内で混入された原液
と共に、第1実施例では分散板9の下方から貫通
孔11を通つて噴出ノズル12により、また第2
実施例では分散板29の上方から配液管24を経
て噴出ノズル31により、それぞれ噴出され、各
凹部10,30の斜面沿いに噴流状の上向流を形
成し、被処理液中の嫌気性菌を担持したバーミユ
キユライト、蛭石等の担体の流動層が形成され、
被処理液中の嫌気性菌の濃度が高められてメタン
発酵の速度が増大する。 In the anaerobic digestion tank configured as described above, the supernatant liquid in the tank is passed from below the dispersion plate 9 through the through hole 11 in the first embodiment together with the stock solution mixed in the circulation pipe to the jet nozzle. 12, and the second
In the embodiment, the liquid is ejected from above the dispersion plate 29 through the liquid distribution pipe 24 and from the ejection nozzle 31, forming a jet-like upward flow along the slope of each recess 10, 30. A fluidized bed of carriers such as vermiculite and vermiculite carrying bacteria is formed,
The concentration of anaerobic bacteria in the liquid to be treated is increased and the rate of methane fermentation is increased.
考案の効果
本考案によれば、分散板上面の各凹部の斜面沿
いに噴流状の上向流を形成して、嫌気性菌を担持
した担体を均一に流動させることができ、被処理
液中の菌体が高濃度に維持され、メタン発酵の速
度が増大して、有機物の分解率が向上し、従来法
に比べて短時間に処理することができる。Effects of the invention According to the invention, a jet-like upward flow is formed along the slope of each recess on the upper surface of the dispersion plate, and the carrier carrying anaerobic bacteria can be uniformly flowed into the liquid to be treated. This method maintains a high concentration of bacterial cells, increases the rate of methane fermentation, improves the decomposition rate of organic matter, and enables processing in a shorter time than with conventional methods.
第1図は本考案の第1実施例を示す概略構成
図、第2図は第1図の要部の拡大図、第3図は第
1図の要部の概略平面図、第4図は本考案の第2
実施例を示す概略構成図、第5図は第4図の要部
の拡大図、第6図は第4図の要部の概略平面図で
ある。
1,21……槽本体、2,22……溢流口、
3,23……上澄液取出口、4,24……配液
管、6,26……循環管路、7,27……原液供
給管、9,29……分散板、10,30……凹
部、12,31……噴出ノズル。
Fig. 1 is a schematic configuration diagram showing the first embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a schematic plan view of the main part of Fig. 1, and Fig. 4 is a schematic diagram of the main part of Fig. 1. The second part of this invention
FIG. 5 is an enlarged view of the main part of FIG. 4, and FIG. 6 is a schematic plan view of the main part of FIG. 4. 1, 21... Tank body, 2, 22... Overflow port,
3, 23... Supernatant liquid outlet, 4, 24... Liquid distribution pipe, 6, 26... Circulation pipe, 7, 27... Stock solution supply pipe, 9, 29... Distribution plate, 10, 30... ...Concavity, 12,31...Ejection nozzle.
Claims (1)
動させるようにした嫌気性消化槽であつて、槽本
体上部に溢流口を設け、槽本体上部に設けた上澄
液取出口と、槽本体下部に設けた配液管とを連通
する循環管路を設け、該循環管路中に原液供給管
を接続し、上面全面に多数の逆四角錐状の凹部を
形成した分散板を槽内下部に敷設し、該分散板の
各逆四角錐状の凹部の中心部に前記配液管から送
液される循環液を噴出させる噴出ノズルを配設し
たことを特徴とする嫌気性消化槽。 This is an anaerobic digestion tank in which anaerobic bacteria are supported on a carrier and allowed to flow through the liquid to be treated, with an overflow port provided at the top of the tank body, and a supernatant liquid outlet provided at the top of the tank body. A dispersion plate is provided with a circulation pipe that communicates with the liquid distribution pipe provided at the bottom of the tank body, a stock solution supply pipe is connected to the circulation pipe, and a large number of inverted quadrangular pyramid-shaped recesses are formed on the entire upper surface. Anaerobic digestion characterized in that a jet nozzle is installed at the lower part of the tank and jets out the circulating liquid sent from the liquid distribution pipe at the center of each inverted quadrangular pyramid-shaped recess of the distribution plate. Tank.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP741886U JPH0352157Y2 (en) | 1986-01-21 | 1986-01-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP741886U JPH0352157Y2 (en) | 1986-01-21 | 1986-01-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62118599U JPS62118599U (en) | 1987-07-28 |
JPH0352157Y2 true JPH0352157Y2 (en) | 1991-11-11 |
Family
ID=30790845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP741886U Expired JPH0352157Y2 (en) | 1986-01-21 | 1986-01-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0352157Y2 (en) |
-
1986
- 1986-01-21 JP JP741886U patent/JPH0352157Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS62118599U (en) | 1987-07-28 |
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