JPS624497A - Activated sludge process - Google Patents
Activated sludge processInfo
- Publication number
- JPS624497A JPS624497A JP60144138A JP14413885A JPS624497A JP S624497 A JPS624497 A JP S624497A JP 60144138 A JP60144138 A JP 60144138A JP 14413885 A JP14413885 A JP 14413885A JP S624497 A JPS624497 A JP S624497A
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- stabilize
- biotin
- treating
- waste water
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 33
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 claims abstract description 22
- 229960002685 biotin Drugs 0.000 claims abstract description 11
- 235000020958 biotin Nutrition 0.000 claims abstract description 11
- 239000011616 biotin Substances 0.000 claims abstract description 11
- 239000010842 industrial wastewater Substances 0.000 claims abstract description 4
- 230000000813 microbial effect Effects 0.000 claims description 5
- 239000010800 human waste Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 244000005700 microbiome Species 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000002351 wastewater Substances 0.000 abstract description 4
- AUTOLBMXDDTRRT-JGVFFNPUSA-N (4R,5S)-dethiobiotin Chemical compound C[C@@H]1NC(=O)N[C@@H]1CCCCCC(O)=O AUTOLBMXDDTRRT-JGVFFNPUSA-N 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract 3
- 230000004913 activation Effects 0.000 abstract 1
- 239000011149 active material Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000005273 aeration Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 244000005706 microflora Species 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 241000233866 Fungi Species 0.000 description 2
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 235000013922 glutamic acid Nutrition 0.000 description 2
- 239000004220 glutamic acid Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 241000736262 Microbiota Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001615 biotins Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000008717 functional decline Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は活性汚泥法により都市し尿、産業排水を処理す
る際に、生理活性物質の一種であるピオチンあるいはそ
の誘導体を添加し、活性汚泥中の微生物相を活性化及び
安定化する事によりて、活性汚泥プロセスの処理能力を
安定、且つ向上させることを目的としたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention involves adding piotin or its derivatives, which is a type of physiologically active substance, to activate the microflora in the activated sludge when treating urban human waste and industrial wastewater using the activated sludge method. The purpose of this is to stabilize and improve the treatment capacity of the activated sludge process by stabilizing the activated sludge process.
本発明の特徴は活性汚泥プロセスの処理性能の向上及び
安定化のために微生物に対する生理活性物質として知ら
れるビオチンあるいはその誘導体を活性汚泥槽に直接添
加し、活性汚泥中の微生物相を、処理水のＢＯＤ 、
ＣＯＤ除去ＫＦｆましい状態に維持あるいは回復せしめ
ることである。The feature of the present invention is that in order to improve and stabilize the treatment performance of the activated sludge process, biotin or a derivative thereof, which is known as a physiologically active substance against microorganisms, is directly added to the activated sludge tank, and the microbial flora in the activated sludge is BOD of,
COD removal KFf is to maintain or restore a good state.
一般に活性汚泥法の性能として論じられるＢＯＤ 。BOD is generally discussed as the performance of activated sludge method.
ＣＯＤ除去率及び汚泥のフロック形成能を維持するため
ＫはＺｏｏｇｌｏ＠ａ ｒａｍｉｇｅｒａなどのかん状
菌、５ｐａｅｒｏｔｌｌｕｓ ｎａｔａｎｓなどの糸状
菌、及びその他の厚生動物が活性汚泥中にバランスよく
生息する必要がある。このために活性汚泥プロセスは−
、溶存酸素濃度、ＢＯＤ 、 ＣＯＤ負荷量、曝気槽内
の混合液懸濁物質（ｍ１ｘｅｄ １ｌｑｕｏｒ ５ｕｓ
ｐｅｎｄｅｄ ５ｏｌｌｄ 。In order to maintain the COD removal rate and the floc-forming ability of sludge, it is necessary for K to inhabit the activated sludge in a well-balanced manner, including planar bacteria such as Zooglo@ramigera, filamentous fungi such as 5paerotllus natans, and other welfare animals. For this purpose, the activated sludge process is
, dissolved oxygen concentration, BOD, COD load, suspended solids in the mixed liquid in the aeration tank (mlxed 1lquor 5us
5old.
ＭＬ、８８）などで管理されているが、気温などの自然
環境の変化、処理排水の質的、量的変化など様々な外的
要因により非常に変化を受けやすく、活性汚泥プ四セス
管理での要点となっている。ひとたび、この微生物相の
バランスが崩れると、ＢＯＤ 、 ＣＯＤ除去率の低下
や汚泥のバルキング現象を引き起こし、著しい場合は運
転の停止のやむなきに至る場合がある。However, it is highly susceptible to changes due to various external factors such as changes in the natural environment such as temperature, qualitative and quantitative changes in treated wastewater, and activated sludge process management is This is the main point. Once the balance of this microbial flora is disrupted, it causes a decrease in BOD and COD removal rates and a sludge bulking phenomenon, and in severe cases, it may be necessary to stop operation.
本発明者は、微生物学的観点から種々検討を重ねた結果
、生理活性物質であるピオチンあるいはその誘導体の微
小量を活性汚泥中に直接添加し、微生物相を活性化せし
め、°活性汚泥プロセスの処理能力を向上せしめるとい
う、簡便かつ経済的なる方法を発明するに至った。なお
、本法は、活性汚泥中の微生物相の活性化による活性汚
泥能力（ＢＯＤ 、 ＣＯＤ除去能、フロ、り形成能）
の向上、及び微生物相のバランスが完全に破壊され糸状
性・々ルキングなどを起こし著しく廃液処理能力が低下
したプロセスの短期回復にも非常に有効な手段である。As a result of various studies from a microbiological point of view, the inventor of the present invention added a minute amount of the physiologically active substance piotin or its derivatives directly to activated sludge to activate the microflora and improve the activated sludge process. We have invented a simple and economical method to improve processing capacity. In addition, this method improves activated sludge ability (BOD, COD removal ability, flo, lye formation ability) by activating microorganisms in activated sludge.
It is also an extremely effective means for short-term recovery of processes in which the balance of microbiota has been completely destroyed, resulting in filamentous properties and sluggishness, resulting in a significant drop in wastewater treatment capacity.
ここでいう、ビオチンの誘導体とはデスチオビオチン、
−ｅラルｆン酸グループ等である。また、ビオチンある
いはその誘導体は純品でなくても、例えばビオチンであ
ればこれを含有するケイン・モラセスの形で使用しても
よい。The biotin derivatives mentioned here are desthiobiotin,
-e ralinic acid group, etc. Furthermore, biotin or its derivatives do not have to be pure products; for example, biotin may be used in the form of cane molasses containing biotin.
ビオチンあるいはその誘導体の添加時期については、微
生物相のバランスが片よシ、糸状性バルキングなどを発
生し活性汚泥プロセスの機能が低下したときに事後的に
添加すれば、活性汚泥プロセスの機能の短期回復に有効
である。このような活性汚泥プロセスの機能低下が予測
される場合には、事前的に活性汚泥プロセスの当初から
添加して、そのような機能低下を予防することもできる
。Regarding the timing of adding biotin or its derivatives, if it is added after the fact when the function of the activated sludge process deteriorates due to imbalance of microorganisms, filamentous bulking, etc., it will reduce the short-term function of the activated sludge process. Effective for recovery. If such functional deterioration of the activated sludge process is predicted, such functional deterioration can be prevented by adding in advance from the beginning of the activated sludge process.
また、機能低下がない場合でも、当初から添加すれば、
添加しない場合に比べて活性汚泥プロセスがよシ向上し
た機能をもって進行する。Also, even if there is no functional decline, if added from the beginning,
The activated sludge process proceeds with improved performance compared to the case without the addition.
ビオチンあるいはその誘導体の添加量は、活性汚泥曝気
槽への流入水に対して、９．５−１００ ｐｐｂの範囲
でよい６０．５ ｐｐｂよシ少量では活性汚泥プロセス
の機能の向上または回復に資するところがなく、１００
ｐｐｂ以上の量では活性汚泥プロセスの機能の向上ま
たは回復に資する程度はほぼ同様であるので、１００
ｐｐｂよシ多く添加しても、１００ ＰＰｂ超過分は無
益に浪費されることとなる。The amount of biotin or its derivatives added may be in the range of 9.5-100 ppb to the inflow water to the activated sludge aeration tank.A small amount of 60.5 ppb will contribute to improving or restoring the function of the activated sludge process. However, 100
If the amount is 100 ppb or more, the extent to which it contributes to improving or recovering the function of the activated sludge process is almost the same.
Even if more than 100 ppb is added, the excess of 100 ppb will be wasted.
上記範囲内でいずれの添加量を選ぶべきかは、当該活性
汚泥プロセスに関して小規模な予備実験を行なうことに
より容易に定め得る。The amount to be added within the above range can be easily determined by conducting small-scale preliminary experiments on the activated sludge process.
以下、実施例により本発明を更に説明する。The present invention will be further explained below with reference to Examples.
実施例１
グルタミン酸発酵液精製工程廃水の活性汚泥処理におい
て、ビオチンを活性汚泥に対し１０ ＰＰｂの濃度にな
るようＫＩＯ日間にわたって連続添加したところ、フロ
ック成長が促進され、表１に示すようにＢＯＤ除去率、
活性汚泥容量（ｓｌｕｇ・ｖｏｌｕｍｅ＋ｓＶ ）が改
善された。Example 1 In the activated sludge treatment of wastewater from the glutamic acid fermentation liquid purification process, when biotin was continuously added to the activated sludge over a KIO day at a concentration of 10 PPb, floc growth was promoted and BOD removal was achieved as shown in Table 1. rate,
Activated sludge capacity (slug・volume+sV) has been improved.
活性汚泥プロセス運転条件
曝気槽容量 °３０１（実験室スケール装置）溶存酸
素濃度 １．０ ｐｐｍ
流入水ＢＯＤ濃度 ２０００−２２００ ｐｐｍ汚泥
水温 ２５−３０ ℃
Ｐ）１ ６．５−７．０
表１
Ｍｌ、８８ ： ＠気槽内温合液懸濁物質５Ｖ３０ ：
３０分後の活性汚泥溶量比較例１
比較のために、実施例１をビオチンを添加しない他は全
く同様に行なったところ、次の表２の結果を得た。Activated sludge process operating conditions Aeration tank capacity °301 (laboratory scale equipment) Dissolved oxygen concentration 1.0 ppm Inflow water BOD concentration 2000-2200 ppm Sludge water temperature 25-30 °C P) 1 6.5-7.0 Table 1 Ml , 88: @ Temperature mixed liquid suspended matter in air tank 5V30:
Comparative Example 1 of activated sludge dissolution amount after 30 minutes For comparison, Example 1 was carried out in exactly the same manner except that biotin was not added, and the results shown in Table 2 below were obtained.
表２
実施例２
グルタミン酸発酵液精製工程廃水の活性汚泥処理におい
て、重度の糸状性バルキングが発生し、その回復のため
に本法を用いた。Table 2 Example 2 Severe filamentous bulking occurred during the activated sludge treatment of wastewater from the glutamic acid fermentation liquid purification process, and this method was used to recover from it.
表３中、経過日数１−７日の期間は正常状態の運転であ
る。８−１７日の期間糸状性バルキングが発生し著しい
ＣＯＤ除去率の低下、汚泥沈降性低下による返送汚泥濃
縮率の低下、処理水への汚泥の漏れなどの性能低下をも
たらした。この間、活性汚泥は殆ど糸状菌で占められ、
原生動物の存在は確認出来なかった。１８−２４日の期
間、活性汚泥槽にｓ Ｅｌｐｂの濃度になるようピオチ
ンを連続添加した。添加２日目の１９日から微生物相は
変化を始め、かん状菌、原生動物が登場した。添加５日
目の２２日には微生物相はほとんど回復し、汚泥沈降性
は向上し処理水への汚泥の漏れは減少した。２５日以降
、微生物相は完全に回復したのでピオチン添加を停止し
た。活性汚泥プロセスとしての性能も完全に回復した。In Table 3, the period from 1 to 7 days is normal operation. Filiform bulking occurred during a period of 8 to 17 days, resulting in a significant decrease in COD removal rate, a decrease in return sludge concentration rate due to a decrease in sludge settling ability, and performance deterioration such as leakage of sludge into treated water. During this period, activated sludge is mostly occupied by filamentous bacteria,
The presence of protozoa could not be confirmed. Piotin was continuously added to the activated sludge tank for a period of 18-24 days to reach a concentration of sElpb. The microbial flora began to change on the 19th, the second day after addition, and rod-shaped bacteria and protozoa appeared. On the 22nd, the 5th day of addition, the microbial flora had almost recovered, the sludge settling properties improved, and the leakage of sludge into the treated water decreased. After the 25th day, the microflora had completely recovered, so piotin addition was stopped. Performance as an activated sludge process was also completely restored.
従来、がん状菌・原生動物が消失するような重度の糸状
性バルキングの回復には、ＣＯＤ負荷の極減（１０００
−１５００ｐｐｍ ）、他所からの正常汚泥の搬入など
の対策を講じてなおかつ、回復には１−３ケ月の長期間
を要するのが通例である。本実施例の場合は高ＣＯＤ負
荷を維持しつつ（ピオチン添加期間中流入水ＣＯＤ負荷
２．１−２．４ ｋｇ／ｍ” ・ｄａｙ ）、約１０日
間の短期間で回復する事ができた。Conventionally, to recover from severe filamentous bulking in which cancerous fungi and protozoa disappear, it is necessary to minimize the COD load (1000
-1,500 ppm), and recovery usually takes a long period of 1 to 3 months, even if measures such as importing normal sludge from elsewhere are taken. In the case of this example, recovery was possible in a short period of about 10 days while maintaining a high COD load (influent COD load 2.1-2.4 kg/m"・day during the piotin addition period). .
活性汚泥運転条件
曝気槽容量 ２４００ ｍ”
溶存酸素濃度 ０．２−１．０ ｐｐｍ流入水ＣＯＤ
負荷 ３０００ｐｐｍが２．３ｋｇ／ｍ” ・ｄａｙに
相当汚泥水温 ３０ ・−３５℃
ｐＨ６，５−７，０
実施例３
活性汚泥法による下水処理において、デスチオピオチン
添加による、処理性能の向上を確認した。Activated sludge operating conditions Aeration tank capacity 2400 m” Dissolved oxygen concentration 0.2-1.0 ppm Influent water COD
Load 3000 ppm corresponds to 2.3 kg/m'' day Sludge water temperature 30 -35°C pH 6,5-7,0 Example 3 In sewage treatment by activated sludge method, it was confirmed that the treatment performance was improved by adding desthiopiotin.
表４に示す結果のようにデスチオピオチン４ ＰＰｂ添
加区では明かにＢＯＤ除去率の改善が確認され、４０
ｐＰｂ添加区ではさらなる処理能力の向上を示した。実
験は３０１の実験室スケールの活性汚泥曝気槽で行なっ
た。６週間の実験期間中デスチオビオチン添加区では微
生物個体数の増加が観察され、なかでも有柄自動性の原
生動物の増加が特徴的である。As shown in Table 4, a clear improvement in the BOD removal rate was confirmed in the desthiopiotin 4 PPb addition area, and 40
The pPb addition group showed further improvement in processing capacity. Experiments were conducted in a 301 laboratory scale activated sludge aeration tank. During the 6-week experimental period, an increase in the number of microorganisms was observed in the desthiobiotin-added plots, and an increase in the number of automated protozoa was particularly notable.
Claims (1)
ビオチンあるいはその誘導体を添加し、活性汚泥中の微
生物相を活性化及び安定化する事によって、活性汚泥プ
ロセスの処理能力を安定向上させる活性汚泥処理法。When treating urban human waste and industrial wastewater using the activated sludge method,
An activated sludge treatment method that stably improves the treatment capacity of the activated sludge process by adding biotin or its derivatives to activate and stabilize the microbial flora in activated sludge.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60144138A JPH0659476B2 (en) | 1985-07-01 | 1985-07-01 | Activated sludge treatment method |
| GB08613766A GB2178735A (en) | 1985-07-01 | 1986-06-06 | Activated sludge process |
| PH33938A PH22690A (en) | 1985-07-01 | 1986-06-24 | Activated sludge process |
| MYPI87002814A MY102967A (en) | 1985-07-01 | 1987-10-01 | Activated sludge process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60144138A JPH0659476B2 (en) | 1985-07-01 | 1985-07-01 | Activated sludge treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS624497A true JPS624497A (en) | 1987-01-10 |
| JPH0659476B2 JPH0659476B2 (en) | 1994-08-10 |
Family
ID=15355103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60144138A Expired - Lifetime JPH0659476B2 (en) | 1985-07-01 | 1985-07-01 | Activated sludge treatment method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH0659476B2 (en) |
| GB (1) | GB2178735A (en) |
| MY (1) | MY102967A (en) |
| PH (1) | PH22690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005512770A (en) * | 2001-12-13 | 2005-05-12 | インバイロンメンタル オペレイティング ソリューションズ インコーポレイテッド | Wastewater treatment process and equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI961247A0 (en) * | 1996-03-18 | 1996-03-18 | Finnish Peroxides Ab Oy | Foerfarande Foer loesning av uppsvaellningsproblem i en avfalls vattenreningsanordning Foer kontroll av traodartiga bakterier |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120559A (en) * | 1976-04-03 | 1977-10-11 | Daidou Kaken Kk | Method of treating waste water using growth promoting agent for activated sludge |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1320058A (en) * | 1962-01-08 | 1963-03-08 | British Petroleum Co | Process and plant for the production of nutritional yeasts from petroleum fractions |
| JPS4843877B1 (en) * | 1970-03-03 | 1973-12-21 | ||
| JPS5016430B1 (en) * | 1970-10-09 | 1975-06-12 | ||
| GB2047739A (en) * | 1979-04-27 | 1980-12-03 | Roche Products Ltd | Nutrient medium |
-
1985
- 1985-07-01 JP JP60144138A patent/JPH0659476B2/en not_active Expired - Lifetime
-
1986
- 1986-06-06 GB GB08613766A patent/GB2178735A/en not_active Withdrawn
- 1986-06-24 PH PH33938A patent/PH22690A/en unknown
-
1987
- 1987-10-01 MY MYPI87002814A patent/MY102967A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52120559A (en) * | 1976-04-03 | 1977-10-11 | Daidou Kaken Kk | Method of treating waste water using growth promoting agent for activated sludge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005512770A (en) * | 2001-12-13 | 2005-05-12 | インバイロンメンタル オペレイティング ソリューションズ インコーポレイテッド | Wastewater treatment process and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2178735A (en) | 1987-02-18 |
| JPH0659476B2 (en) | 1994-08-10 |
| PH22690A (en) | 1988-11-14 |
| MY102967A (en) | 1993-03-31 |
| GB8613766D0 (en) | 1986-07-09 |
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