JPH11253991A - Apparatus for treating waste water containing mineral oil - Google Patents
Apparatus for treating waste water containing mineral oilInfo
- Publication number
- JPH11253991A JPH11253991A JP10073467A JP7346798A JPH11253991A JP H11253991 A JPH11253991 A JP H11253991A JP 10073467 A JP10073467 A JP 10073467A JP 7346798 A JP7346798 A JP 7346798A JP H11253991 A JPH11253991 A JP H11253991A
- Authority
- JP
- Japan
- Prior art keywords
- mineral oil
- bacteria
- tank
- carrier
- 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.)
- Pending
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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、工場やガソリンス
タンド等の鉱油を含む排水を発生する場所で処理するこ
とができる鉱油を含む排水の処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating wastewater containing mineral oil, which can be treated at a place where wastewater containing mineral oil is generated, such as a factory or a gas station.
【０００２】[0002]
【従来の技術】塩分を含む漬物工場の排水等の処理をバ
クテリアとバクテリアネスト（例えば、特開平５−６９
０６７号をご参照）を用いて行う提案がなされている。
これらの排水処理は排水自体がバクテリアの栄養を多く
含むものを対象とするものである。しかしながら、工場
やガソリンスタンド等の鉱油を含む排水については、発
生点での処理技術は確立されていない。工場・スタンド
等の鉱油を含む排水は、油水分離槽（グリーストラッ
プ）で分離させた油分を産業廃棄物業者の抜取りで回収
されている。鉱油の最終処理は困難で、離島や廃坑跡等
に不法投棄することによる２次災害が起きている。分離
槽からも日常的に鉱油が流出して河川を汚染している現
実がある。2. Description of the Related Art Bacteria and a bacterial nest (for example, Japanese Unexamined Patent Publication No. 5-69) are used to treat wastewater from a pickle factory containing salt.
No. 067).
These wastewater treatments are intended for wastewater itself that is rich in bacterial nutrients. However, for wastewater containing mineral oil, such as from factories or gas stations, no treatment technology has been established at the point of generation. Wastewater containing mineral oil from factories, stands, etc. is collected by an industrial waste trader extracting oil separated by an oil-water separation tank (grease trap). Final disposal of mineral oil is difficult, and secondary disasters have occurred due to illegal dumping on isolated islands and abandoned mines. There is a reality that mineral oil spills daily from the separation tank and pollutes the river.
【０００３】[0003]
【発明が解決しようとする課題】前述のように鉱油を含
む排水の発生点での処理技術は確立されていないが、鉱
油を消化する炭化水素分解用バクテリアに最良の条件を
与えることにより処理能力を向上して、発生源からの廃
油を処理することに着目した。本発明の目的は、工場・
工業団地ガソリンスタンド、サービスエリア等の廃棄鉱
油を含む排水を発生地点で処理して日本で現在、究極的
に行詰りつつある最終廃棄物処理についての負担を軽減
することができる鉱油を含む排水処理装置を提供するこ
とにある。As mentioned above, the treatment technology at the point of generation of wastewater containing mineral oil has not been established, but the treatment capacity can be improved by giving the best conditions to the hydrocarbon-degrading bacteria digesting mineral oil. And focused on treating waste oil from sources. The purpose of the present invention is to
Wastewater treatment equipment containing mineral oil that can treat wastewater containing waste mineral oil from industrial park gas stations, service areas, etc. at the point of generation to reduce the burden on final waste treatment that is currently ultimately stalled in Japan. Is to provide.
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
に、本発明による鉱油を含む排水処理装置は、鉱油を含
む排水が供給される処理槽と、前記処理槽中に沈められ
た多孔質セラミックス製バクテリア培養担体巣と、前記
担体巣中に鉱油分解バクテリア液および前記バクテリア
の栄養剤を含む液を給送する給送手段と、前記担体巣中
の下方から空気泡を供給するばっき手段と、前記担体巣
中の水温を前記バクテリアの繁殖温度に調節する温度調
節手段とから構成されている。前記バクテリアの栄養剤
は窒素と燐酸を含むものとすることができる。前記給送
手段の前記バクテリア液の供給率はバクテリア源液を１
００倍に希釈したものを、排水量比率５０ＰＰＭになる
ように間欠供給するものとすることができる。前記温度
調節手段は多数の連続孔をもつマットや多孔質セラミッ
クス製バクテリア培養担体巣中の温度が約２８°Ｃとな
るように調節することができる。In order to achieve the above object, a wastewater treatment apparatus containing mineral oil according to the present invention comprises a treatment tank to which wastewater containing mineral oil is supplied, and a porous tank submerged in the treatment tank. Ceramic cultivation carrier nest, feeding means for feeding a mineral oil-degrading bacterial solution and a liquid containing a nutrient of the bacterium into the carrier nest, and means for supplying air bubbles from below the carrier nest And temperature control means for controlling the temperature of water in the carrier nest to the temperature at which the bacteria grow. The bacterial nutrient may include nitrogen and phosphoric acid. The rate of supply of the bacterial solution by the feeding means is as follows.
The one that has been diluted by a factor of 00 can be intermittently supplied so as to have a drainage rate of 50 PPM. The temperature control means can control the temperature in the mat having a large number of continuous holes or the bacterial culture carrier nest made of porous ceramics to be about 28 ° C.
【０００５】[0005]
【発明の実施の形態】以下図面等を参照して本発明によ
る装置の実施の形態を説明する。図１は鉱油を消化する
バクテリアに最良の条件を与えて、発生源から廃油処理
をするシステム図である。この実施例では処理槽は３槽
構成になっており、第１槽１３、第２槽１４および第３
槽１５が底部で連通するようにしてこの順に配置されて
おり、第１槽１３に排水源水配管８を介して鉱油を含む
排水源水が供給されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram showing that the best conditions are given to bacteria that digest mineral oil and waste oil is treated from a source. In this embodiment, the processing tank has a three-tank configuration, and includes a first tank 13, a second tank 14, and a third tank.
The tanks 15 are arranged in this order such that they communicate with each other at the bottom, and the first tank 13 is supplied with drainage source water containing mineral oil via the drainage source water pipe 8.
【０００６】第２槽１４には、多孔質セラミックスのバ
クテリア担体巣１６をならべたステンレス棚が配置され
ている。バクテリア担体巣１６として、６５〜９３重量
％のＳｉＯ2 と５．２〜１５．２重量％のＡｌ2 Ｏ3 と
０．１〜０．７重量％のＦｅ2 Ｏ3 とを含有してなせる
セラミックスであって、見掛け気孔率が６０〜８０％と
なるように平均気孔直径２０〜１２０μｍの開口気孔を
有する網目構造からなるポーラスソフトセラミックスを
利用できる。各槽の底近くに散気管１８，１９，２０が
それぞれ配置されており、ブロア１２からの空気を水中
に散気する。なおブロア１２は前記バクテリ培養担体巣
１６の下に配置されている。ブロア１２の下には対流を
発生させ、バクテリアの培養を促進するためのサーモヒ
ータ１７が配置されている。さらに各槽の表面には保温
板・油付着板９，１０，１１がそれぞれ配置されてい
る。In the second tank 14, a stainless steel shelf on which a bacterial carrier web 16 of porous ceramics is arranged is arranged. As bacterial carrier nests 16, it contains a Fe 2 O 3 of 65-93% by weight of SiO 2 and 5.2 to 15.2% by weight of Al 2 O 3 and 0.1 to 0.7 wt% It is possible to use porous soft ceramics having a network structure having open pores having an average pore diameter of 20 to 120 μm so that the apparent porosity is 60 to 80%. Aeration tubes 18, 19, and 20 are respectively disposed near the bottom of each tank, and diffuse air from the blower 12 into water. The blower 12 is disposed below the bacterial culture carrier nest 16. Below the blower 12, a thermoheater 17 for generating convection and promoting the cultivation of bacteria is arranged. Further, a heat insulating plate / oil-attached plate 9, 10, 11 is disposed on the surface of each tank.
【０００７】床上にはキャスター付フレーム３を用意
し、その上に鉱油分解用バクテリアを含むバイオ液タン
ク１、バイオ栄養剤タンク２が配置されている。前記バ
イオ液はウレタンチューブを介してチューブポンプ５ａ
で前述したバクテリ培養担体巣１６中に供給される。な
おチューブ４ａは交換式である。チューブポンプ５ａと
このチューブポンプ５ａのタイマー６ａは、防湿・防水
カバー７ａで保護されており、タイマー６ａとチューブ
ポンプ５ａには交流電源が接続されている。バイオ栄養
剤も同様にしてバクテリア培養担体巣１６中に供給され
る。チューブポンプ５ｂ，タイマー６ｂ，防湿・防水カ
バー７ｂはバイオ栄養剤供給用の設備である。各液は毎
回５００ｃｃ〜１０００ｃｃの範囲で注入されるが注入
量は１００ｃｃ単位で可変に制御できる。各チューブポ
ンプ５ａ，５ｂはそれぞれのタイマー６ａ６ｂにより１
日に２４回、１回約５分間作動させられる。[0007] A frame 3 on casters is prepared on the floor, on which a bio-liquid tank 1 and a bio-nutrient tank 2 containing bacteria for decomposing mineral oil are arranged. The bio-liquid is supplied through a urethane tube to a tube pump 5a.
Is supplied to the bacterial culture carrier nest 16 described above. The tube 4a is replaceable. The tube pump 5a and the timer 6a of the tube pump 5a are protected by a moisture-proof / waterproof cover 7a, and an AC power supply is connected to the timer 6a and the tube pump 5a. The bionutrient is similarly supplied into the bacterial culture carrier nest 16. The tube pump 5b, the timer 6b, and the moisture-proof / waterproof cover 7b are facilities for supplying a bionutrient. Each liquid is injected in the range of 500 cc to 1000 cc each time, but the injection amount can be variably controlled in 100 cc units. Each of the tube pumps 5a and 5b is set to 1 by a respective timer 6a and 6b.
Activated once a day for about 5 minutes 24 times a day.
【０００８】前記装置の運転の手順等について簡単に説
明する。鉱油を含む排水の発生する所では通常グリース
トラップ（油水分離装置）が設けられている。そのよう
な装置の浮遊スカム・油分を油吸着材で吸収除去する。
前述した多孔質セラミックスのバクテリア担体巣をなら
べたステンレス棚が沈められている槽１４の前段の槽１
３に廃液を供給する。一方前述した、鉱油分解バクテリ
ア液として、アメリカフロリダ州カスタムバイオロジカ
ル社の鉱油分解バクテリア原液を１０００倍に希釈して
タンク１に注入しておく。また前記バクテリアの栄養剤
として窒素と燐酸を含むバクテリアの栄養液をタンク２
に準備する。前述したタイマ設定の目安はそれぞれ排水
量比５０ＰＰＭが一回に注入されるようにすることであ
る。温度の急変を防ぎ、保温のために発泡ポリエチレン
板の保温・油付着板９〜１１を水面に浮かせることによ
って、わずかな加熱で静かな上昇対流を起こし、ばっき
による酸素供給と相まってバクテリアを最良の条件（バ
クテリアの最も活性化する２８°Ｃ）で効果的に活性化
させて排水処理を半永久的に持続させる。[0008] The operation procedure and the like of the device will be briefly described. Grease traps (oil-water separators) are usually provided where wastewater containing mineral oil is generated. The floating scum and oil of such a device are absorbed and removed by an oil absorbent.
The tank 1 in front of the tank 14 in which the stainless steel shelf on which the bacterial carrier nest of porous ceramics described above is arranged is submerged.
3 to supply waste liquid. On the other hand, as the above-mentioned mineral oil-degrading bacterial solution, the mineral oil-degrading bacterial stock solution of Custom Biological, Florida, USA, is diluted 1000-fold and poured into the tank 1. Further, a nutrient solution of the bacterium containing nitrogen and phosphoric acid as a nutrient for the bacterium is supplied to the tank 2.
Prepare for The standard of the above-mentioned timer setting is that the discharge rate 50 PPM is injected at one time. Prevents sudden changes in temperature and keeps the foamed polyethylene plate warm and oil-attached plates 9-11 on the surface of water to keep the water warm. (28.degree. C., at which bacteria are most active) is effective to maintain the wastewater treatment semi-permanently.
【０００９】[0009]
【発明の効果】以上詳しく説明したように、本発明によ
る装置では、バクテリアと栄養剤を同時に注入し、セラ
ミック担体巣でバクテリアの最も活性化する状態を形成
するから、バクテリアの培養、接触で半永久的に排水処
理することができる。本発明による装置ではバクテリア
の補給点検のみで、半永久的に稼働し排水管理の煩瑣な
業務から解放される。バクテリアの作用で種々の成分が
分解され悪臭の発生が軽減される。廃棄油が固まって細
くなった排水管をバクテリアが元の太さに広げ、排水口
の下流迄浄化できる。産業廃棄物業者によるバキューム
吸取り清掃費と比較して、試算では小規模事業所で３０
％の経費削減が可能で大規模事業所では５０％以上の経
費削減ができる。As explained in detail above, in the device according to the present invention, bacteria and nutrients are simultaneously injected, and the most active state of bacteria is formed in the ceramic carrier nest. Wastewater treatment can be performed. The apparatus according to the present invention operates semi-permanently only by checking the supply of bacteria and is free from the complicated task of drainage control. Various components are decomposed by the action of bacteria, and the generation of offensive odor is reduced. Bacteria spread the drain pipe, which was thinned out of waste oil, to its original thickness, and can be purified down the drain. Compared to the vacuum dewatering and cleaning costs by industrial waste contractors, the estimated cost is 30
Cost savings can be reduced by as much as 50% at large establishments.
【図１】本発明によるバクテリアによる鉱油処理装置の
実施例を示す図である。FIG. 1 is a diagram showing an embodiment of an apparatus for treating mineral oil with bacteria according to the present invention.
１ 鉱油分解バクテリアを含むバイオ液タンク ２ バイオ栄養剤タンク ３ キャスタ付フレーム ４ａ，ｂ チューブ（交換式） ５ａ，ｂ チューブポンプ ６ａ，ｂ タイマ ７ａ，ｂ 防湿・防水カバー ８ 排水源水管 ９，１０，１１ 保温板・油付着板 １２ ブロア（ばっき用） １３ 第１槽 １４ 第２槽（分解処理槽） １５ 第３槽 １６ 多孔質セラミックス製バクテリア培養担体巣 １７ サーモ・ヒータ １８，１９，２０ 散気管（ばっき用） Reference Signs List 1 Bio-liquid tank containing mineral oil-decomposing bacteria 2 Bio-nutrient tank 3 Frame with casters 4a, b Tube (replaceable) 5a, b Tube pump 6a, b Timer 7a, b Moistureproof / waterproof cover 8 Drainage source water pipe 9, 10, DESCRIPTION OF SYMBOLS 11 Insulation board / oil adhesion board 12 Blower (for baking) 13 1st tank 14 2nd tank (decomposition processing tank) 15 3rd tank 16 Bacterial culture carrier nest made of porous ceramics 17 Thermo-heater 18, 19, 20 Scattering Trachea
Claims (1)
リア培養担体巣と、 前記担体巣中に鉱油分解バクテリア液および前記バクテ
リアの栄養剤を含む液を給送する給送手段と、 前記担体巣中の下方から空気泡を供給するばっき手段
と、 前記担体巣中の水温を前記バクテリアの繁殖温度に調節
する温度調節手段とを含む鉱油を含む排水処理装置。1. A treatment tank to which wastewater containing mineral oil is supplied, a porous ceramic bacterium culture carrier nest submerged in the treatment tank, a mineral oil-degrading bacterial solution and a nutrient for the bacterium in the carrier nest A feeding means for feeding a liquid containing: a feeding means for feeding air bubbles from below in the carrier nest; and a temperature adjusting means for adjusting a water temperature in the carrier nest to a growth temperature of the bacteria. Wastewater treatment equipment containing mineral oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073467A JPH11253991A (en) | 1998-03-06 | 1998-03-06 | Apparatus for treating waste water containing mineral oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10073467A JPH11253991A (en) | 1998-03-06 | 1998-03-06 | Apparatus for treating waste water containing mineral oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11253991A true JPH11253991A (en) | 1999-09-21 |
Family
ID=13519115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10073467A Pending JPH11253991A (en) | 1998-03-06 | 1998-03-06 | Apparatus for treating waste water containing mineral oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11253991A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129580A (en) * | 1999-11-02 | 2001-05-15 | Kl Plant Kk | Apparatus for treating waste water containing oil and fat |
| JP2002018460A (en) * | 2000-07-12 | 2002-01-22 | Shikoku Chem Corp | Method and apparatus for treating wastewater containing oil |
| 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 |
| JP2007160229A (en) * | 2005-12-14 | 2007-06-28 | Toyota Central Res & Dev Lab Inc | Method of treating ethylene glycol-containing wastewater and its apparatus |
| JP2011200829A (en) * | 2010-03-26 | 2011-10-13 | Fuso Kensetsu Kogyo Kk | Raw water purifying method and apparatus of the same |
-
1998
- 1998-03-06 JP JP10073467A patent/JPH11253991A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129580A (en) * | 1999-11-02 | 2001-05-15 | Kl Plant Kk | Apparatus for treating waste water containing oil and fat |
| JP2002018460A (en) * | 2000-07-12 | 2002-01-22 | Shikoku Chem Corp | Method and apparatus for treating wastewater containing oil |
| 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 |
| JP2007160229A (en) * | 2005-12-14 | 2007-06-28 | Toyota Central Res & Dev Lab Inc | Method of treating ethylene glycol-containing wastewater and its apparatus |
| JP2011200829A (en) * | 2010-03-26 | 2011-10-13 | Fuso Kensetsu Kogyo Kk | Raw water purifying method and apparatus of the same |
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