JPH0659476B2 - Activated sludge treatment method - Google Patents
Activated sludge treatment methodInfo
- Publication number
- JPH0659476B2 JPH0659476B2 JP60144138A JP14413885A JPH0659476B2 JP H0659476 B2 JPH0659476 B2 JP H0659476B2 JP 60144138 A JP60144138 A JP 60144138A JP 14413885 A JP14413885 A JP 14413885A JP H0659476 B2 JPH0659476 B2 JP H0659476B2
- Authority
- JP
- Japan
- Prior art keywords
- activated sludge
- biotin
- treatment method
- sludge
- sludge treatment
- 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 - Lifetime
Links
- 239000010802 sludge Substances 0.000 title claims description 49
- 238000000034 method Methods 0.000 title claims description 27
- 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 description 26
- 229960002685 biotin Drugs 0.000 claims description 13
- 235000020958 biotin Nutrition 0.000 claims description 13
- 239000011616 biotin Substances 0.000 claims description 13
- 230000000813 microbial effect Effects 0.000 claims description 7
- 239000010842 industrial wastewater Substances 0.000 claims description 2
- 239000010841 municipal wastewater Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 241000233866 Fungi Species 0.000 description 5
- 238000005273 aeration Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- AUTOLBMXDDTRRT-JGVFFNPUSA-N (4R,5S)-dethiobiotin Chemical group C[C@@H]1NC(=O)N[C@@H]1CCCCCC(O)=O AUTOLBMXDDTRRT-JGVFFNPUSA-N 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
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000002474 experimental method Methods 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
- 239000002351 wastewater Substances 0.000 description 3
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 235000013922 glutamic acid Nutrition 0.000 description 2
- 239000004220 glutamic acid Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 150000001615 biotins Chemical class 0.000 description 1
- 241000902900 cellular organisms Species 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical group CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 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)
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、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 adds biotin, which is one of physiologically active substances, or its derivatives to activate microbial flora in activated sludge when treating municipal waste and industrial wastewater by the activated sludge method. The stabilization is intended to stabilize and improve the treatment capacity of 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
に好ましい状態に維持あるいは回復せしめることであ
る。A feature of the present invention is that biotin, which is known as a physiologically active substance against microorganisms, or its derivative is directly added to an activated sludge tank in order to improve and stabilize the treatment performance of the activated sludge process, and the microbial flora in the activated sludge is treated with treated water. It is to maintain or recover to a condition favorable for removal of BOD and COD.
一般に活性汚泥法の性能として論じられるBOD，COD除去
率及び汚泥のフロック形成能を維持するためにはZooglo
ea ramigeraなどのかん状菌、Spaerotilus natansなど
の糸状菌、及びその他の原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pH、溶存酸素濃度、BOD，COD負荷量、曝気槽内の混
合液懸濁物質（mixed liquor suspended solid、MLSS）
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、活性汚泥プロセス管理での要点
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。In order to maintain the BOD, COD removal rate and sludge floc formation ability, which are generally discussed as the performance of activated sludge process, Zooglo
Filamentous fungi such as ea ramigera, filamentous fungi such as Spaerotilus natans, and other protozoa need to be well-balanced in the activated sludge. For this reason, the activated sludge process is pH, dissolved oxygen concentration, BOD, COD loading, mixed liquor suspended solid (MLSS) in the aeration tank.
Although it is managed by, etc., changes in natural environment such as temperature,
It is very susceptible to changes due to various external factors such as qualitative and quantitative changes of treated wastewater, and it is a key point in activated sludge process management. Once this imbalance of microflora is lost, it may lead to a decrease in BOD and COD removal rates and sludge bulking phenomenon, and in extreme 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ビ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、フロック形成能）の向上、
及び微生物相のバランスが安全に破壊された糸状性バル
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 viewpoint, the present inventor directly added a small amount of biotin, which is a physiologically active substance, or a derivative thereof to activated sludge to activate the microbial flora and treat the activated sludge process. We have invented a simple and economical method of improving the ability. In addition, this method improves the activated sludge capacity (BOD, COD removal ability, floc formation ability) by activating the microbial flora in the activated sludge,
It is also a very effective means for short-term recovery of a process in which the waste liquid treatment capacity is remarkably reduced due to filamentous bulking in which the balance of the microflora is safely destroyed.
ここでいう、ビオチンの誘導体とはデスチオビオチン、
ペラルゴ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
い。The biotin derivative here is desthiobiotin,
For example, the pelargonic acid group. Further, biotin or its derivative may not be a pure product, and if biotin is used, it may be used in the form of cane molasses containing it.
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り、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。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り向
上した機能をもって進行する。Regarding the timing of addition of biotin or its derivative, if the function of the activated sludge process declines due to filamentous bulking due to the imbalance in the microbial flora, the function of the activated sludge process can be restored in a short time. Is effective for. When such functional deterioration of the activated sludge process is predicted, it can be added in advance from the beginning of the activated sludge process to prevent such functional deterioration. Even if the function is not deteriorated, if it is added from the beginning, the activated sludge process proceeds with a more improved function as compared with the case where it is not added.
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、０．５−100ppbの範囲でよい。
０．５ppbより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、１００ppb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、１００ppbより多く添加し
ても、１００ppb超過分は無益に浪費されることとな
る。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 of biotin or its derivative added may be in the range of 0.5-100 ppb with respect to the inflow water to the activated sludge aeration tank.
If the amount is less than 0.5 ppb, there is no point contributing to the improvement or recovery of the function of the activated sludge process, and if the amount is 100 ppb or more, the degree to which the function of the activated sludge process is improved or recovered is almost the same. However, the excess of 100 ppb is wastefully wasted. Which addition amount should be selected within the above range can be easily determined by conducting a small-scale preliminary experiment 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 described 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１０ppbの濃度になるよ
うに１０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（sluge volume,SV）が改善された。Example 1 In the activated sludge treatment of the wastewater of the glutamic acid fermented liquor purification step, biotin was continuously added to the activated sludge at a concentration of 10 ppb for 10 days, floc growth was promoted, and BOD was removed as shown in Table 1. Efficiency and sludge volume (SV) were improved.
活性汚泥プロセス運転条件 曝気槽容量 ３０(実験室スケール装置) 溶存酸素濃度 １．０ppm 流入水BOD濃度 2000−2200ppm 汚泥水温 ２５−３０℃ pH ６．５−７．０ 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 30 (laboratory scale equipment) Dissolved oxygen concentration 1.0ppm Influent water BOD concentration 2000-2200ppm Sludge water temperature 25-30 ° C pH 6.5-7.0 Comparative Example 1 For comparison, Example 1 was carried out in the same manner except that biotin was not added, and the results shown in Table 2 below were obtained.
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。 Example 2 Severe filamentous bulking occurred in the activated sludge treatment of the glutamic acid fermented liquor purification process wastewater, and this method was used for recovery thereof.
表３中、過程日数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５ppbの濃度になるようビオチンを連
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２
２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ビ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 in which the number of process days is 1 to 7 days is normal. Significant occurrence of filamentous bulking during 8-17 days
The COD removal rate decreased, the sludge sedimentation property decreased, the return sludge concentration rate decreased, and sludge leaked to the treated water. During this period, the activated sludge was mostly occupied by filamentous fungi, and the presence of protozoa could not be confirmed. Biotin was continuously added to the activated sludge tank at a concentration of 5 ppb for a period of 18-24 days. The microflora began to change on day 19 of the second day of addition, and rod-shaped fungi and protozoa appeared. 2nd day of addition
On the 2nd day, the microbial flora was almost recovered, the sludge sedimentation property was improved, and the leakage of sludge into the treated water was reduced. After 25 days, the biota was completely recovered and the addition of biotin was stopped. The performance as an activated sludge process was completely restored.
従来、かん状菌・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（1000-1500pp
m）、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ケ月の長時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（ビ
オチン添加期間中流入水COD負荷２．１−２．４kg/m3・d
ay）、約１０日間の短期間で回復する事ができた。Conventionally, for the recovery of the severe filamentous bulking that causes the disappearance of rod-shaped fungi / protozoa, the COD load is extremely reduced (1000-1500pp
m), it is customary to take measures such as bringing in normal sludge from other places and still require a long time of 1-3 months for recovery. In the case of this example, while maintaining a high COD load (inflow COD load 2.1-2.4 kg / m 3 · d during biotin addition period)
ay), I was able to recover in a short period of about 10 days.
活性汚泥運転条件 曝気槽容量 2400m3 溶存酸素濃度 ０．２−１．０ppm 流入水COD負荷 3000ppmが2.3kg/m3・dayに相当 汚泥水温 ３０−３５℃ pH ６．５−７．０ 実施例３ 活性汚泥法による下水処理において、デスチオビオチン
添加による、処理性能の向上を確認した。表４に示す結
果のようにデスチオビオチン４ppb添加区では明かにBOD
除去率の改善が確認され、４０ppb添加区ではさらなる
処理能力の向上を示した。実験は３０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。Equivalent activated sludge operating conditions aeration tank capacity 2400 m 3 dissolved oxygen concentration 0.2-1.0ppm influent COD load 3000ppm within 2.3kg / m 3 · day sludge water temperature 30-35 ° C. pH 6.5-7.0 Example 3 In sewage treatment by the activated sludge method, it was confirmed that the treatment performance was improved by adding desthiobiotin. As shown in the results shown in Table 4, BOD was clearly found in the 4 ppb addition group of desthiobiotin
It was confirmed that the removal rate was improved, and the treatment capacity was further improved in the 40 ppb addition group. The experiment was conducted in 30 laboratory scale activated sludge aeration tanks. During the 6-week experiment period, an increase in the number of microorganisms was observed in the desthiobiotin-added section, and among them, the increase in peduncle-type protozoa was characteristic.
Claims (1)
理する際に、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。1. A treatment capacity of an activated sludge process by adding biotin or a derivative thereof to activate and stabilize the microbial flora in the activated sludge when treating municipal wastewater or industrial wastewater by the activated sludge method. Activated sludge treatment method for stable improvement.
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 JPS624497A (en) | 1987-01-10 |
| JPH0659476B2 true 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) |
Families Citing this family (2)
| 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 |
| EP1453584A4 (en) * | 2001-12-13 | 2009-10-28 | Environmental Operating Soluti | Process and apparatus for waste water treatment |
Family Cites Families (5)
| 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 | ||
| JPS52120559A (en) * | 1976-04-03 | 1977-10-11 | Daidou Kaken Kk | Method of treating waste water using growth promoting agent for activated sludge |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| GB2178735A (en) | 1987-02-18 |
| GB8613766D0 (en) | 1986-07-09 |
| PH22690A (en) | 1988-11-14 |
| JPS624497A (en) | 1987-01-10 |
| MY102967A (en) | 1993-03-31 |
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