JPS6028895A - Process for operating plug flow type digestion tank - Google Patents
Process for operating plug flow type digestion tankInfo
- Publication number
- JPS6028895A JPS6028895A JP58138191A JP13819183A JPS6028895A JP S6028895 A JPS6028895 A JP S6028895A JP 58138191 A JP58138191 A JP 58138191A JP 13819183 A JP13819183 A JP 13819183A JP S6028895 A JPS6028895 A JP S6028895A
- Authority
- JP
- Japan
- Prior art keywords
- digestion
- chamber
- digestion chamber
- gas
- sludge
- 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
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】 この発明は、栓流型消化槽の運転方法に関する。[Detailed description of the invention] The present invention relates to a method of operating a plug flow type digester.
嫌気性消化法における消化ガスは、嫌気性分解の最終生
成物として発生するもので、消化槽内の環境条件が整い
、メタン菌の活動がさかんになり処理効率が高まると、
その量が多(なる。したがって、処理効率はガス発生量
の多少により推測することができる。Digestion gas in anaerobic digestion is generated as the final product of anaerobic decomposition, and when the environmental conditions inside the digester are adjusted and the activity of methane bacteria increases, processing efficiency increases.
The amount of gas generated is large. Therefore, the processing efficiency can be estimated based on the amount of gas generated.
ところで、栓流型消化槽は、槽内を複数の消化室に分割
し、各消化室でそれぞれ嫌気性消化を行なうものである
が、各消化室における消化条件はそれぞれ異なるため、
各消化室から発生する消化ガスの量もそれぞれ異なって
いる。By the way, in a plug flow type digestion tank, the inside of the tank is divided into multiple digestion chambers, and anaerobic digestion is performed in each digestion chamber, but the digestion conditions in each digestion chamber are different.
The amount of digestive gas generated from each digestion chamber is also different.
したがって、栓流型消化槽全体の処理効率を同上させる
ためには、各消化室のガス発生量を検出し、ガス発生量
が最大になるように管理することが必要である。Therefore, in order to increase the processing efficiency of the entire plug flow type digestion tank, it is necessary to detect the amount of gas generated in each digestion chamber and to manage the amount of gas generated to maximize the amount of gas generated.
この発明は、栓流型消化槽において、ガス発生量の少な
い消化室のガス発生量を増大させ、消化槽全体の処理効
率を向上させることを目的とする。An object of the present invention is to increase the amount of gas generated in the digestion chamber, which generates a small amount of gas, in a plug-flow type digester, thereby improving the processing efficiency of the entire digester.
上記目的を達成するために、この発明は、栓流型消化槽
において、各消化室から発生する消化ガスの量をそれぞ
れ検出し、ガス発生量の少ない消化室への消化汚泥の返
送量を増加させるものである。In order to achieve the above object, this invention detects the amount of digestion gas generated from each digestion chamber in a plug flow type digestion tank, and increases the amount of digested sludge returned to the digestion chamber where the amount of gas generated is small. It is something that makes you
このように、ガス発生量の少ない消化室への消化汚泥の
返送量を増加させると、その消化室内のメタン菌数が増
加する。このメタン菌数と消化ガスの発生量との間には
、比例関係があるので、メタン菌数が増加するとガス発
生量も増加することになる。In this way, when the amount of digested sludge returned to the digestion chamber where the amount of gas generated is small is increased, the number of methane bacteria in the digestion chamber increases. Since there is a proportional relationship between the number of methane bacteria and the amount of digestive gas generated, as the number of methane bacteria increases, the amount of gas generated also increases.
以上のように、栓流型消化槽に督いて各消化室のガス発
生量を指標にして消化汚泥の返送量をコントロールする
ことにより、ガス発生量が向上し、処理効率が高くなる
。As described above, by controlling the amount of digested sludge returned to the plug flow type digester using the amount of gas generated in each digestion chamber as an index, the amount of gas generated is improved and the treatment efficiency is increased.
次に、この発明の実施例を添付図面に基づいて説明する
。Next, embodiments of the present invention will be described based on the accompanying drawings.
栓流型消化槽1は、槽内を複数の消化室2に分割してあ
り、各消化室2で嫌気性消化を行うものである。The plug flow type digestion tank 1 has the inside of the tank divided into a plurality of digestion chambers 2, and each digestion chamber 2 performs anaerobic digestion.
生汚泥3は一端の消化室2に投入され、この生汚泥3の
投入により各消化室2内の処理汚泥4が一端の消化室2
から他端の消化室2に順次溢流するようになっており、
消化汚泥5と脱離液6は他端の消化室2から引出され、
消化汚泥5は返送用ポンプ7によって各消化室2に返送
されるようになっている。The raw sludge 3 is charged into the digestion chamber 2 at one end, and by charging the raw sludge 3, the treated sludge 4 in each digestion chamber 2 is transferred to the digestion chamber 2 at one end.
It is designed to sequentially overflow from one end to the other end of the digestion chamber 2.
Digested sludge 5 and desorbed liquid 6 are drawn out from the digestion chamber 2 at the other end,
Digested sludge 5 is returned to each digestion chamber 2 by a return pump 7.
各消化室2から発生する消化ガス8は、各消化室8から
引抜かれてガスタンク9に捕集される。Digestion gas 8 generated from each digestion chamber 2 is drawn out from each digestion chamber 8 and collected in a gas tank 9.
この引抜き配管の途中には消化ガスの発生量を検出する
検出装置10が設けられている。この検出装置10の検
出信号は、消化汚泥5の返送用配管に設けた自動開閉弁
11を自動制御する制御装置12に送られ、この制御装
置12により、消化ガス8の発生量が少ない消化室2に
は、自動開閉弁11の開度を大きくして消化汚泥5の返
送量が増加するようしである。A detection device 10 for detecting the amount of digestive gas generated is provided in the middle of this drawn piping. A detection signal from this detection device 10 is sent to a control device 12 that automatically controls an automatic opening/closing valve 11 provided in a pipe for returning digested sludge 5. 2, the amount of returned digested sludge 5 is increased by increasing the opening degree of the automatic on-off valve 11.
上記のように消化ガス8の発生量が少ない消化室2に返
送される消化汚泥5の量を増加させれば、その消化室2
内のメタン菌数が増大するので、処理効率が高まり、消
化ガスの発生量も多くなる。As mentioned above, if the amount of digested sludge 5 returned to the digestion chamber 2 where the amount of digestion gas 8 generated is small is increased, the digestion chamber 2
As the number of methane bacteria increases, processing efficiency increases and the amount of digestive gas generated increases.
この発明の栓流型消化槽の運転方法の説明図である。
1・・・栓流型消化槽、2・・・消化室、3・・・生汚
泥、4・・・処理汚泥、5・・・消化汚泥、6・・・脱
離液、8・・・消化ガス
特許出願人 久保田鉄工株式会社
同代理人 鎌 18 文 二FIG. 2 is an explanatory diagram of a method of operating a plug flow type digester according to the present invention. 1... Plug flow type digestion tank, 2... Digestion chamber, 3... Raw sludge, 4... Treated sludge, 5... Digested sludge, 6... Desorption liquid, 8... Digestion gas patent applicant: Kubota Iron Works Co., Ltd. Same agent: Sickle 18 Sentence 2
Claims (1)
投入し、この生汚泥の投入により各消化室内の処理汚泥
を一端の消化室から他端の消化室へ順次溢流せしめて各
消化室内で嫌気性消化を行ない、各消化室から消化ガス
を、引抜き、他端の消化室から消化汚泥と脱離液を引出
し、各消化室にそれぞれ上記消化汚泥を返送する栓流型
消化槽の運転方法において、上記各消化室から発生する
消化ガスの罐をそれぞれ検出し、ガス発生量の少ない消
化室への消化汚泥の返送量を増加させる栓流型消化槽の
運転方法。The inside of the tank is divided into multiple digestion chambers, raw sludge is charged into the digestion chamber at one end, and the treated sludge in each digestion chamber is sequentially overflowed from the digestion chamber at one end to the digestion chamber at the other end. The plug flow type performs anaerobic digestion in each digestion chamber, extracts the digestion gas from each digestion chamber, pulls out the digested sludge and desorbed liquid from the digestion chamber at the other end, and returns the digested sludge to each digestion chamber. A method for operating a plug-flow type digester, in which the cans of digestion gas generated from each of the above-mentioned digestion chambers are detected respectively, and the amount of digested sludge returned to the digestion chamber with a small amount of gas generation is increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58138191A JPS6028895A (en) | 1983-07-26 | 1983-07-26 | Process for operating plug flow type digestion tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58138191A JPS6028895A (en) | 1983-07-26 | 1983-07-26 | Process for operating plug flow type digestion tank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6028895A true JPS6028895A (en) | 1985-02-14 |
JPH0420679B2 JPH0420679B2 (en) | 1992-04-06 |
Family
ID=15216202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58138191A Granted JPS6028895A (en) | 1983-07-26 | 1983-07-26 | Process for operating plug flow type digestion tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6028895A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4670148A (en) * | 1984-11-10 | 1987-06-02 | Reinhard Schneider | Apparatus and method for withdrawing gaseous decomposition products from a refuse dump |
JP2010188340A (en) * | 2009-02-16 | 2010-09-02 | Sang Bum Lee | Two-storied type anaerobic digestion device for biogas production |
-
1983
- 1983-07-26 JP JP58138191A patent/JPS6028895A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4670148A (en) * | 1984-11-10 | 1987-06-02 | Reinhard Schneider | Apparatus and method for withdrawing gaseous decomposition products from a refuse dump |
JP2010188340A (en) * | 2009-02-16 | 2010-09-02 | Sang Bum Lee | Two-storied type anaerobic digestion device for biogas production |
Also Published As
Publication number | Publication date |
---|---|
JPH0420679B2 (en) | 1992-04-06 |
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