JPH0559797B2 - - Google Patents
Info
- Publication number
- JPH0559797B2 JPH0559797B2 JP18805586A JP18805586A JPH0559797B2 JP H0559797 B2 JPH0559797 B2 JP H0559797B2 JP 18805586 A JP18805586 A JP 18805586A JP 18805586 A JP18805586 A JP 18805586A JP H0559797 B2 JPH0559797 B2 JP H0559797B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- raw water
- submerged combustion
- treatment tank
- generated
- 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
- 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は有機物含有水の嫌気性処理装置、特
に発生ガスにより加温を行うようにした嫌気性処
理装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an anaerobic treatment device for organic matter-containing water, and particularly to an anaerobic treatment device that heats water using generated gas.
有機物含有水の嫌気性処理装置では生物分解に
適した温度に加温する必要があるが、加温の方法
として、発生ガスをボイラ等において燃焼させ、
得られた蒸気を嫌気性処理槽に吹込むか、あるい
は得られた温水により熱交換器において原水を加
温するものが提案されている（例えば特公昭59−
25640号）。
In anaerobic treatment equipment for water containing organic matter, it is necessary to heat it to a temperature suitable for biological decomposition.
It has been proposed that the obtained steam be blown into an anaerobic treatment tank, or that the obtained hot water be used to heat raw water in a heat exchanger (for example,
No. 25640).
しかしながら、このような従来の嫌気性処理装
置では、発生ガスをボイラ等で燃焼させ、燃焼ガ
スとの間接的な熱交換により蒸気や温水を得てい
るため、エネルギ利用率が70％程度で熱効率が悪
く、またボイラの能力が一定のため、昇温に必要
な蒸気が常時得られないとともに、ガスホルダを
必要とし、さらにボイラに付随する水処理装置等
が必要で、装置およびそのメンテナンスが複雑に
なるなどの問題点があつた。
However, in such conventional anaerobic treatment equipment, the generated gas is combusted in a boiler etc. and steam and hot water are obtained through indirect heat exchange with the combustion gas, so the energy utilization rate is around 70% and the thermal efficiency is low. In addition, because the boiler has a fixed capacity, the steam necessary for raising the temperature cannot be obtained at all times, and a gas holder is required, as well as water treatment equipment attached to the boiler, making the equipment and its maintenance complicated. There were some problems, such as:
この発明は上記問題点を解決するためのもの
で、熱効率が高く、かつ安定した燃焼を行うこと
ができるとともに、発生ガスに見合つた燃焼によ
る加温が可能であり、また装置およびメンテナン
スを簡素化することができる嫌気性処理装置を提
供することを目的としている。 This invention is intended to solve the above-mentioned problems. It has high thermal efficiency and can perform stable combustion. It also enables heating by combustion commensurate with the generated gas, and simplifies equipment and maintenance. The purpose of the present invention is to provide an anaerobic treatment device that can perform anaerobic treatment.
この発明は、有機物含有水を導入して嫌気性処
理を行う処理槽と、この処理槽における発生ガス
を液中で燃焼させる液中燃焼装置と、この液中燃
焼装置により原水を加温して前記処理槽へ供給す
る原水供給装置と、前記処理槽から液中燃焼装置
へ発生ガスを供給するガス供給装置とを備え、前
記ガス供給装置は発生ガスの圧力を高める昇圧ブ
ロアを有し、前記液中燃焼装置への供給ガス圧は
昇圧ブロアのリターン回路の循環量の調整により
一定圧に維持されるようになつていることを特徴
とする嫌気性処理装置である。
This invention consists of a treatment tank that performs anaerobic treatment by introducing organic matter-containing water, a submerged combustion device that burns gas generated in the treatment tank in the liquid, and a submerged combustion device that heats raw water. A raw water supply device for supplying to the treatment tank, and a gas supply device for supplying generated gas from the treatment tank to the submerged combustion device, the gas supply device having a pressure booster blower that increases the pressure of the generated gas, This anaerobic treatment apparatus is characterized in that the pressure of the gas supplied to the submerged combustion apparatus is maintained at a constant pressure by adjusting the circulation rate of the return circuit of the booster blower.
この発明の嫌気性処理装置においては、原水供
給装置により原水（有機物含有水）を処理槽に供
給し、嫌気状態に維持して、嫌気性微生物の分解
作用を利用した嫌気性処理を行う。処理槽におい
て発生する発生ガスをガス供給装置により液中燃
焼装置に供給して液中燃焼を行い、原水を加温し
て処理槽に供給する。このとき昇圧ブロアにより
活性ガスの圧力を高め、リターン回路の循環量の
調整により、供給ガス圧を一定に維持し、安定な
燃焼を行う。
In the anaerobic treatment device of the present invention, raw water (organic matter-containing water) is supplied to the treatment tank by the raw water supply device, maintained in an anaerobic state, and anaerobic treatment is performed using the decomposition action of anaerobic microorganisms. Gas generated in the treatment tank is supplied to a submerged combustion device by a gas supply device to perform submerged combustion, and raw water is heated and supplied to the treatment tank. At this time, the pressure of the active gas is increased by a booster blower, and the supply gas pressure is maintained constant by adjusting the circulation amount in the return circuit, thereby achieving stable combustion.
図面はこの発明の一実施例を示す系統図であ
る。図面において、１は処理槽で、内部に有機物
含有水および嫌気性微生物スラツジの混合液２を
滞留させ、嫌気性処理を行うようになつている。
処理槽１の下部には原水噴出管３が設けられて原
水供給管４に連絡し、また液面部には処理水管５
が設けられ、上部にはガス供給管６が設けられて
いる。
The drawing is a system diagram showing one embodiment of the present invention. In the drawings, reference numeral 1 denotes a treatment tank in which a mixed solution 2 of organic matter-containing water and anaerobic microbial sludge is retained to perform anaerobic treatment.
A raw water spout pipe 3 is provided at the bottom of the treatment tank 1 and communicates with the raw water supply pipe 4, and a treated water pipe 5 is provided at the liquid level.
is provided, and a gas supply pipe 6 is provided at the top.
原水供給管４には液中燃焼装置７、加熱器８お
よびポンプ９が設けられ、原水供給装置を構成し
ている。液中燃焼装置７は内部に貯留した原水１
０中で燃焼を行うようにバーナ１１および排気筒
１２を有している。バーナ１１の混合器１３には
ガス供給管６および空気供給管１４が連絡してい
る。またバーナ１１には炎検知器１５が設けられ
ている。 The raw water supply pipe 4 is provided with a submerged combustion device 7, a heater 8, and a pump 9, constituting a raw water supply device. The submerged combustion device 7 uses raw water 1 stored inside.
It has a burner 11 and an exhaust pipe 12 so as to carry out combustion in the air. A gas supply pipe 6 and an air supply pipe 14 communicate with the mixer 13 of the burner 11 . The burner 11 is also provided with a flame detector 15.
ガス供給管６には処理槽１側から水封槽１６、
流量計１７、圧力計１８、脱硫塔１９、ドレンセ
パレータ２０、昇圧ブロア２１、リターン回路２
２、圧力計２３、ガス排出管２４および弁２５，
２６が設けられ、リターン回路２２には弁２７お
よび冷却器２８が設けられ、またガス排出管２４
には弁２９が設けられてガス供給装置を構成して
いる。空気供給管１４には弁３０が設けられてい
る。圧力計１８の検出圧力により弁２６，３０の
開度が調整され、圧力計２３の検出圧力により弁
２７の開度が調整され、炎検知器１５の炎不検知
信号により弁２５が閉、弁２９が開となるように
接続している。 A water seal tank 16 is connected to the gas supply pipe 6 from the processing tank 1 side.
Flowmeter 17, pressure gauge 18, desulfurization tower 19, drain separator 20, booster blower 21, return circuit 2
2, pressure gauge 23, gas discharge pipe 24 and valve 25,
26 is provided, the return circuit 22 is provided with a valve 27 and a cooler 28, and a gas discharge pipe 24 is provided.
A valve 29 is provided to constitute a gas supply device. The air supply pipe 14 is provided with a valve 30. The opening degree of the valves 26 and 30 is adjusted by the pressure detected by the pressure gauge 18, the opening degree of the valve 27 is adjusted by the pressure detected by the pressure gauge 23, and the valve 25 is closed by the flame non-detection signal from the flame detector 15. 29 is connected so that it is open.
上記のように構成された嫌気性処理装置におい
ては、原水（有機物含有水）１０を液中燃焼装置
７に滞留させ、バーナ１１を点火して加温し、冬
季などの熱量の不足する場合にはさらにその一部
を加熱器８に導入して加熱し、ポンプ９により原
水供給管４から原水噴出管３を通して処理槽１に
導入する。処理槽１では原水と微生物スラツジの
混合液２が形成されて嫌気性処理が行われ、微生
物の作用により原水中の有機物が分解され、ガス
が発生するとともに、処理水は処理水管５から取
出される。 In the anaerobic treatment device configured as described above, the raw water (water containing organic matter) 10 is retained in the submerged combustion device 7, and the burner 11 is ignited to heat it. Further, a part of the raw water is introduced into a heater 8 to be heated, and then introduced into the processing tank 1 from the raw water supply pipe 4 through the raw water spout pipe 3 by the pump 9. In the treatment tank 1, a mixture 2 of raw water and microbial sludge is formed and subjected to anaerobic treatment, and the organic matter in the raw water is decomposed by the action of microorganisms, gas is generated, and the treated water is taken out from the treated water pipe 5. Ru.
処理槽１の発生ガスはガス供給管６から水封槽
１６、流量計１７を経て脱硫塔１９において脱硫
され、ドレンセパレータ２０においてドレンを除
去されて、昇圧ブロア２１によりバーナ１１に供
給され、空気供給管１４から供給される空気と混
合器１３で混合された後バーナ１１において原水
１０中で燃焼し、原水１０を加温する。燃焼ガス
は排気筒１２から排出される。 The gas generated in the treatment tank 1 is desulfurized from the gas supply pipe 6 through the water seal tank 16 and the flow meter 17 in the desulfurization tower 19, drain is removed in the drain separator 20, and is supplied to the burner 11 by the booster blower 21, where air is After being mixed with air supplied from the supply pipe 14 in the mixer 13, it is burned in the raw water 10 in the burner 11 to heat the raw water 10. Combustion gas is exhausted from the exhaust stack 12.
このとき圧力計２３により弁２７の開度が調整
され、ガスの供給圧が一定（例えば5000mmAq）
に保たれ、これによりバーナ１１の燃焼が安定化
する。リターン回路２２のガスは冷却器２８にお
いて圧縮熱を冷却され循環する。また圧力計１８
の検出圧により、弁２６がガス発生量に比例した
開度に調整され、同様に弁３０がそれに対応する
必要最少限の空気量の開度に調整され、これによ
り処理槽１における発生ガス量に応じた燃焼が行
われ、ガスホルダが不要となる。また必要最少限
の空気量で燃焼させることにより原水１０への酸
素の溶解を少なくし、これにより処理槽１におけ
る嫌気性微生物に対する酸素の悪影響を少なくす
る。 At this time, the opening degree of the valve 27 is adjusted by the pressure gauge 23, and the gas supply pressure is constant (for example, 5000 mmAq).
This stabilizes the combustion of the burner 11. The gas in the return circuit 22 is cooled by the heat of compression in the cooler 28 and circulated. Also, pressure gauge 18
Based on the detected pressure, the valve 26 is adjusted to an opening proportional to the amount of gas generated, and the valve 30 is similarly adjusted to the corresponding minimum opening of the required minimum amount of air, thereby reducing the amount of gas generated in the processing tank 1. Combustion is performed according to the amount of fuel, eliminating the need for a gas holder. Further, by burning with the minimum necessary amount of air, the dissolution of oxygen into the raw water 10 is reduced, thereby reducing the adverse effect of oxygen on the anaerobic microorganisms in the treatment tank 1.
バーナ１１の燃焼が停止したときは炎検知器１
５がこれを検知して、弁２６を閉じるとともに弁
２５を開き、ガス排出管２４からガスを大気中に
放出し、液中燃焼装置７における爆発を防ぐ。 When combustion of burner 11 has stopped, flame detector 1
5 detects this, closes the valve 26 and opens the valve 25, and releases the gas into the atmosphere from the gas discharge pipe 24, thereby preventing an explosion in the submerged combustion device 7.
液中燃焼装置７では、バーナ１１により発生ガ
スが液中で燃焼して、気−液の直接熱交換が行わ
れるため熱効率が良く、エネルギ利用率は93％程
度になる。従つて夏季等においては補助燃料は必
要でない。図面の装置の運転結果によれば、25℃
の原水を50m3／hrで液中燃焼装置７に供給し、発
生ガスを昇圧ブロア２１で昇圧して50Nm3／hrで
バーナ１１に供給するとともに、空気を600m3／
hrで供給して液中燃焼を行つたところ、原水温度
は33℃に昇温し、良好に嫌気性処理を行うことが
できた。 In the submerged combustion device 7, the generated gas is combusted in the liquid by the burner 11, and direct heat exchange between gas and liquid is performed, so the thermal efficiency is good, and the energy utilization rate is about 93%. Therefore, auxiliary fuel is not necessary during summer months. According to the operating results of the equipment in the drawing, 25℃
of raw water is supplied to the submerged combustion device 7 at a rate of 50 m 3 /hr, the generated gas is pressurized by a booster blower 21 and supplied to the burner 11 at a rate of 50 Nm 3 /hr, and air is supplied at a rate of 600 m 3 /hr.
When submerged combustion was performed by supplying the raw water at 100 hr, the raw water temperature rose to 33°C, and anaerobic treatment could be performed successfully.
液中燃焼そのものには発生ガス中の硫化水素は
障害とならないため、脱硫塔１９は必ずしも必要
でないが、器壁や配管の腐食を防ぐために設ける
のが好ましい。水封槽１６は処理槽１への引火を
防止するために設けられる。 Since hydrogen sulfide in the generated gas does not pose an obstacle to submerged combustion itself, the desulfurization tower 19 is not necessarily required, but it is preferable to provide it in order to prevent corrosion of the vessel walls and piping. The water seal tank 16 is provided to prevent the processing tank 1 from catching fire.
なお上記実施例では、液中燃焼装置７に原水１
０を導入して直接加温するようにしたが、液中燃
焼装置では他の液体を加温し、加熱された液体に
より原水を加熱するようにしてもよい。 In the above embodiment, raw water 1 is added to the submerged combustion device 7.
Although the submerged combustion device heats other liquids directly, the raw water may be heated by the heated liquid.
また処理槽１としてはスラツジブランケツト
形、流動床など、任意の形式のものを採用するこ
とができる。 Further, the treatment tank 1 may be of any type, such as a sludge blanket type or a fluidized bed type.
本発明によれば、発生ガスを昇圧ブロアで昇圧
し、リターン回路の循環量の調整により供給ガス
圧を一定に維持して、液中燃焼装置で燃焼させ、
原水を加温するようにしたので、熱効率が高く、
かつ燃焼を安定して行うことができるとともに、
発生ガスに見合つた昇温が可能であり、また装置
およびメンテナンスが簡素化するなどの効果があ
る。
According to the present invention, the pressure of the generated gas is increased by a booster blower, the supplied gas pressure is maintained constant by adjusting the circulation amount of the return circuit, and the gas is combusted by a submerged combustion device.
Since the raw water is heated, thermal efficiency is high.
In addition to being able to perform combustion stably,
It is possible to raise the temperature commensurate with the generated gas, and it also has the effect of simplifying the equipment and maintenance.
図面は実施例を示す系統図であり、１は処理
槽、４は原水供給管、５は処理水管、６はガス供
給管、７は液中燃焼装置、１１はバーナ、１３は
混合器、１４は空気供給管、１５は炎検知器、１
７は流量計、１８，２３は圧力計、２０はドレン
セパレータ、２１は昇温ブロア、２２はリターン
回路である。
The drawing is a system diagram showing an embodiment, in which 1 is a treatment tank, 4 is a raw water supply pipe, 5 is a treated water pipe, 6 is a gas supply pipe, 7 is a submerged combustion device, 11 is a burner, 13 is a mixer, 14 is an air supply pipe, 15 is a flame detector, 1
7 is a flow meter, 18 and 23 are pressure gauges, 20 is a drain separator, 21 is a temperature increasing blower, and 22 is a return circuit.
Claims (1)
理槽と、この処理槽における発生ガスを液中で焼
成させる液中燃焼装置と、この液中燃焼装置によ
り原水を加温して前記処理槽へ供給する原水供給
装置と、前記処理槽から液中燃焼装置へ発生ガス
を供給するガス供給装置とを備え、前記ガス供給
装置は発生ガスの圧力を高める昇圧ブロアを有
し、前記液中燃焼装置への供給ガス圧は昇圧ブロ
アのリターン回路の循環量の調整により一定圧に
維持されるようになつていることを特徴とする嫌
気性処理装置。 ２ 液中燃焼装置へのガスの供給量は発生ガス量
に比例するようになつた特許請求の範囲第１項記
載の嫌気性処理装置。[Scope of Claims] 1. A treatment tank that performs anaerobic treatment by introducing organic matter-containing water, a submerged combustion device that burns the gas generated in this treatment tank in liquid, and a submerged combustion device that adds raw water to the water. The method includes a raw water supply device that heats and supplies the raw water to the treatment tank, and a gas supply device that supplies generated gas from the treatment tank to the submerged combustion device, and the gas supply device includes a booster blower that increases the pressure of the generated gas. The anaerobic treatment apparatus is characterized in that the pressure of the gas supplied to the submerged combustion apparatus is maintained at a constant pressure by adjusting the circulation rate of a return circuit of a booster blower. 2. The anaerobic treatment device according to claim 1, wherein the amount of gas supplied to the submerged combustion device is proportional to the amount of gas generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61188055A JPS6342797A (en) | 1986-08-11 | 1986-08-11 | Anaerobic treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61188055A JPS6342797A (en) | 1986-08-11 | 1986-08-11 | Anaerobic treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6342797A JPS6342797A (en) | 1988-02-23 |
| JPH0559797B2 true JPH0559797B2 (en) | 1993-08-31 |
Family
ID=16216896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61188055A Granted JPS6342797A (en) | 1986-08-11 | 1986-08-11 | Anaerobic treatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342797A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06206092A (en) * | 1993-01-08 | 1994-07-26 | Kajima Corp | Treatment of waste liquid |
-
1986
- 1986-08-11 JP JP61188055A patent/JPS6342797A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342797A (en) | 1988-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |