JP2014221462A5 - - Google Patents
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- JP2014221462A5 JP2014221462A5 JP2013102241A JP2013102241A JP2014221462A5 JP 2014221462 A5 JP2014221462 A5 JP 2014221462A5 JP 2013102241 A JP2013102241 A JP 2013102241A JP 2013102241 A JP2013102241 A JP 2013102241A JP 2014221462 A5 JP2014221462 A5 JP 2014221462A5
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- sludge
- anaerobic treatment
- tank
- granular
- extraction means
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- 239000010802 sludge Substances 0.000 claims description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000000605 extraction Methods 0.000 claims description 22
- 239000008187 granular material Substances 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 10
- 239000010815 organic waste Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims 1
- 241000233866 Fungi Species 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 4
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Description
本発明の嫌気性（anaerobic, anoxia）処理システムは、嫌気性汚泥が粒状化してなるグラニュール汚泥を収納し、導入された有機性廃水を上向きに流動させ前記グラニュール汚泥と接触させることによって前記有機性廃水を嫌気性処理し、上部の分離部により前記グラニュール汚泥を分離して処理水を排出する嫌気性処理槽と、前記分離部に導入される前の位置で、前記嫌気性処理槽から前記グラニュール汚泥を外に抜き出すための汚泥抜出手段と、前記汚泥抜出手段で抜き出されたグラニュール汚泥に衝撃を与えて前記嫌気性処理槽に返送することを特徴とする。
The anaerobic (anaerobic, anoxia) treatment system of the present invention stores granular sludge formed by granulating anaerobic sludge, and flows the introduced organic waste water upward to bring it into contact with the granular sludge. Anaerobic treatment of organic waste water, separation of the granular sludge by an upper separation part and discharge of treated water, and anaerobic treatment tank at a position before being introduced into the separation part said sludge evacuation means for withdrawing granular sludge out, and back to said and Turkey shock to the anaerobic treatment tank gives the granular sludge withdrawn by said sludge evacuation means from the .
この嫌気性処理システムでは、嫌気性処理槽の分離部に導入される前の位置で、嫌気性処理槽からグラニュール汚泥が外に抜き出され、衝撃が与えられる。ここで、グラニュール汚泥に衝撃が与えられることで、グラニュール汚泥の周りに発生した糸状菌等が剥離される。即ち、糸状菌のグラニュール汚泥への付着力は弱いため、衝撃により容易にグラニュール汚泥から剥離する。以上のように、糸状菌が付着したグラニュール汚泥から、糸状菌を剥離する処理を連続的に行うことができるので、運転を継続しながら糸状菌バルキングを解消することができる。
In the anaerobic treatment systems, at a position prior to being introduced into the separation portion of the anaerobic treatment tank, the granular sludge is extracted out of the anaerobic treatment tank, the shock gives et be. Here, by the granular sludge impact it is found given filamentous fungus or the like occurs around the granular sludge is peeled off. That is, since adhesion to granular sludge filamentous fungi weak, easily peeled off from the granular sludge by shock. As the following, the granular sludge which fungi is attached, since the process of separating the filamentous fungi can be carried out continuously, it is possible to solve the filamentous fungus bulking while continuing operation.
また、前記汚泥抜出手段で抜き出されたグラニュール汚泥が落下して導入される汚泥槽と、前記汚泥槽の下部に溜まったグラニュール汚泥を前記嫌気性処理槽に返送する返送手段と、を更に備え、前記汚泥槽は前記汚泥抜出手段から前記グラニュール汚泥と一緒に導入された水を溜める水溜部を有し、前記汚泥抜出手段から前記汚泥槽へ汚泥を導入する導入口は、前記水溜部の液面の上方に離間して位置することとしてもよい。この場合、落下の衝撃により容易にグラニュール汚泥から剥離し、糸状菌が剥離されたグラニュール汚泥は汚泥槽の下部に沈降し返送手段によって嫌気性処理槽へ返送される。更に、嫌気性処理槽から抜き出されたグラニュール汚泥は導入口から水溜部の液面まで落下し液面に叩きつけられるので、グラニュール汚泥に付着した糸状菌が効率よく剥離される。
Further, the sludge tank into which the granular sludge extracted by the sludge extraction means falls and introduced, and the return means for returning the granule sludge accumulated in the lower part of the sludge tank to the anaerobic treatment tank, The sludge tank has a water reservoir for storing water introduced together with the granule sludge from the sludge extraction means, and the introduction port for introducing the sludge from the sludge extraction means to the sludge tank is The water reservoir may be spaced above the liquid level. In this case, the granule sludge from which the filamentous fungus has been peeled off is easily separated from the granule sludge by the impact of dropping, and is settled to the lower part of the sludge tank and returned to the anaerobic treatment tank by the return means. Furthermore, since the granular sludge extracted from the anaerobic treatment tank falls from the inlet to the liquid level of the water reservoir and is struck against the liquid level, the filamentous fungus attached to the granular sludge is efficiently peeled off.
本発明は嫌気性処理方法を提供し、嫌気性汚泥が粒状化してなるグラニュール汚泥を収納した嫌気性処理槽で、導入された有機性廃水を上向きに流動させ前記グラニュール汚泥と接触させることによって前記有機性廃水を嫌気性処理し、前記嫌気性処理槽の上部の分離部により前記グラニュール汚泥を分離して処理水を排出する廃水処理工程と、前記分離部に導入される前の位置で、前記嫌気性処理槽からグラニュール汚泥を外に抜き出す汚泥抜出工程と、前記汚泥抜出工程で抜き出されたグラニュール汚泥に衝撃を与えて前記嫌気性処理槽に返送することを特徴とする。
The present invention provides anaerobic treatment method, an anaerobic treatment tank housing the granular sludge anaerobic sludge formed by granulating, be contacted with the granular sludge upwards in flowing introduced organic waste water The organic wastewater is subjected to anaerobic treatment, and the wastewater treatment step of separating the granular sludge by the separation unit at the top of the anaerobic treatment tank and discharging the treated water, and the position before being introduced into the separation unit in a sludge extraction step of extracting the granular sludge out of the anaerobic treatment tank, and Turkey be returned to the anaerobic treatment tank shocked granular sludge withdrawn by the sludge extraction step It is characterized by.
この嫌気性処理方法は、汚泥抜出工程で抜き出されたグラニュール汚泥に衝撃を与えて前記嫌気性処理槽に返送する。グラニュール汚泥に衝撃を与えて嫌気性処理槽に返送することで、グラニュール汚泥の周りに発生した糸状菌等が剥離される。即ち、糸状菌のグラニュール汚泥への付着力は弱いため、衝撃により容易にグラニュール汚泥から剥離し、嫌気性処理槽へ返送される。以上のように、糸状菌が付着したグラニュール汚泥から、糸状菌を剥離する処理を連続的に行うことができるので、嫌気性処理システムの運転を継続しながら糸状菌バルキングを解消することができる。
In this anaerobic treatment method, the granule sludge extracted in the sludge extraction step is impacted and returned to the anaerobic treatment tank . By causing the granule sludge to be impacted and returning it to the anaerobic treatment tank, filamentous fungi and the like generated around the granule sludge are peeled off. That is, since adhesion to granular sludge filamentous fungi weak, easily detached from the granular sludge by shock, and returned to the anaerobic treatment tank. As mentioned above, since the process which peels off a filamentous fungus can be performed continuously from the granular sludge to which the filamentous fungus has adhered, the filamentous fungus bulking can be eliminated while continuing the operation of the anaerobic treatment system. .
また、前記汚泥抜出工程で抜き出されたグラニュール汚泥が落下して汚泥槽に導入される汚泥落下工程と、前記汚泥槽の底部に溜まったグラニュール汚泥を前記嫌気性処理槽に返送する返送工程と、を更に備え、前記汚泥抜出工程、前記汚泥落下工程及び前記返送工程は、前記廃水処理工程と並行して実行されることとしてもよい。この場合、落下の衝撃により容易にグラニュール汚泥から剥離し、糸状菌が剥離されたグラニュール汚泥は汚泥槽の下部に沈降し返送工程によって嫌気性処理槽へ返送される。更に、嫌気性処理システムの運転を継続しながら、糸状菌が付着したグラニュール汚泥から糸状菌を剥離する処理を連続的に行うことができる。 In addition, the sludge dropping process in which the granulated sludge extracted in the sludge extracting process is dropped and introduced into the sludge tank, and the granular sludge collected at the bottom of the sludge tank is returned to the anaerobic treatment tank. A return step, and the sludge extraction step, the sludge dropping step, and the return step may be performed in parallel with the wastewater treatment step. In this case, the granular sludge from which the filamentous fungi have been peeled off easily by the impact of dropping is settled at the lower part of the sludge tank and returned to the anaerobic treatment tank by the return process. Furthermore, the process which peels a filamentous fungus from the granular sludge to which the filamentous fungus adhered can be performed continuously, continuing the operation of the anaerobic treatment system.
Claims (10)
前記分離部に導入される前の位置で、前記嫌気性処理槽から前記グラニュール汚泥を外に抜き出すための汚泥抜出手段と、を備え、
前記汚泥抜出手段で抜き出されたグラニュール汚泥に衝撃を与えて前記嫌気性処理槽に返送することを特徴とする嫌気性処理システム。 Granule sludge formed by granulating anaerobic sludge is stored, and the organic waste water is anaerobically treated by flowing the introduced organic waste water upward and bringing it into contact with the granule sludge. An anaerobic treatment tank for separating the granular sludge and discharging treated water;
A sludge extraction means for extracting the granular sludge out of the anaerobic treatment tank at a position before being introduced into the separation unit ;
Anaerobic treatment system comprising a Turkey be returned to the anaerobic treatment tank shocked granular sludge withdrawn by the sludge extraction means.
前記汚泥槽の下部に溜まったグラニュール汚泥を前記嫌気性処理槽に返送する返送手段と、を更に備え、
前記汚泥槽は前記汚泥抜出手段から前記グラニュール汚泥と一緒に導入された水を溜める水溜部を有し、
前記汚泥抜出手段から前記汚泥槽へ汚泥を導入する導入口は、前記水溜部の液面の上方に離間して位置することを特徴とする請求項１に記載の嫌気性処理システム。 A sludge tank into which the granule sludge extracted by the sludge extraction means falls and is introduced;
Returning means for returning the granular sludge accumulated in the lower part of the sludge tank to the anaerobic treatment tank, and
The sludge tank has a water reservoir for storing water introduced together with the granule sludge from the sludge extraction means,
2. The anaerobic treatment system according to claim 1, wherein the introduction port for introducing the sludge from the sludge extraction means to the sludge tank is spaced above the liquid level of the water reservoir.
前記汚泥抜出手段から前記汚泥槽へ汚泥を導入する導入口は、前記水溜部の液面下に位置することを特徴とする請求項２に記載の嫌気性処理システム。 The sludge tank has a water reservoir for storing water introduced together with the granule sludge from the sludge extraction means,
The anaerobic treatment system according to claim 2 , wherein an introduction port for introducing sludge from the sludge extraction means to the sludge tank is located below the liquid surface of the water reservoir.
前記取水口は、前記分離部の下端と、前記嫌気性処理槽の底から２ｍ上方の位置と、の間の高さに設けられることを特徴とする請求項１〜３のいずれか一項に記載の嫌気性処理システム。 The sludge extraction means has a water intake port for sucking the granular sludge from the anaerobic treatment tank,
The said water intake is provided in the height between the lower end of the said separation part, and the position of 2 m upper direction from the bottom of the anaerobic processing tank, The Claim 1 characterized by the above-mentioned. The anaerobic treatment system described.
前記分離部に導入される前の位置で、前記嫌気性処理槽からグラニュール汚泥を外に抜き出す汚泥抜出工程と、を備え、
前記汚泥抜出工程で抜き出されたグラニュール汚泥に衝撃を与えて前記嫌気性処理槽に返送することを特徴とする嫌気性処理方法。 In anaerobic treatment tank housing the granular sludge anaerobic sludge formed by granulating, the organic waste water is treated anaerobically by contacting said granular sludge upwards in flowing introduced organic waste water, A wastewater treatment step of separating the granular sludge and discharging treated water by a separation part at the top of the anaerobic treatment tank;
A sludge extraction step of extracting granule sludge from the anaerobic treatment tank at a position before being introduced into the separation unit, and
Anaerobic treatment wherein the Turkey be returned to the anaerobic treatment tank shocked granular sludge withdrawn by the sludge extraction step.
前記汚泥槽の底部に溜まったグラニュール汚泥を前記嫌気性処理槽に返送する返送工程と、をさらに備え、
前記汚泥抜出工程、前記汚泥落下工程及び前記返送工程は、前記廃水処理工程と並行して実行されることを特徴とする請求項９に記載の嫌気性処理方法。
The sludge dropping step in which the granule sludge extracted in the sludge extraction step falls and is introduced into the sludge tank,
A return step of returning the granular sludge accumulated at the bottom of the sludge tank to the anaerobic treatment tank, and
The anaerobic treatment method according to claim 9, wherein the sludge extraction step, the sludge dropping step, and the return step are performed in parallel with the wastewater treatment step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013102241A JP5989598B2 (en) | 2013-05-14 | 2013-05-14 | Anaerobic treatment system and anaerobic treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013102241A JP5989598B2 (en) | 2013-05-14 | 2013-05-14 | Anaerobic treatment system and anaerobic treatment method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014221462A JP2014221462A (en) | 2014-11-27 |
| JP2014221462A5 true JP2014221462A5 (en) | 2015-09-24 |
| JP5989598B2 JP5989598B2 (en) | 2016-09-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7149706B2 (en) * | 2018-01-12 | 2022-10-07 | 住友重機械エンバイロメント株式会社 | Sugar decomposition tank, sugar decomposition treatment system and sugar decomposition treatment method used for treatment of sugar-containing waste liquid |
| CN115490327B (en) * | 2022-10-14 | 2023-05-26 | 南京环美科技股份有限公司 | Improved anaerobic device |
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| JP3358322B2 (en) * | 1994-09-30 | 2002-12-16 | 栗田工業株式会社 | Anaerobic treatment equipment |
| JPH08103795A (en) * | 1994-10-04 | 1996-04-23 | Kurita Water Ind Ltd | Anaerobic treatment device |
| JPH10180289A (en) * | 1996-12-25 | 1998-07-07 | Kurita Water Ind Ltd | Anaerobic treating device |
| JP2008086862A (en) * | 2006-09-29 | 2008-04-17 | Nippon Paper Industries Co Ltd | Anaerobic treatment method and arrangement |
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