JPH0671597B2 - Method for producing immobilized carrier for microorganisms - Google Patents
Method for producing immobilized carrier for microorganismsInfo
- Publication number
- JPH0671597B2 JPH0671597B2 JP62129728A JP12972887A JPH0671597B2 JP H0671597 B2 JPH0671597 B2 JP H0671597B2 JP 62129728 A JP62129728 A JP 62129728A JP 12972887 A JP12972887 A JP 12972887A JP H0671597 B2 JPH0671597 B2 JP H0671597B2
- Authority
- JP
- Japan
- Prior art keywords
- microorganisms
- blast furnace
- granulated
- immobilized carrier
- synthetic resin
- 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 - Fee Related
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
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は生物膜を利用した汚水処理用の微生物用固定化
担体に関するもので、特に高炉水砕を使った微生物用固
定化担体の製造方法に関するものである。TECHNICAL FIELD The present invention relates to an immobilization carrier for microorganisms for treating sewage using a biofilm, and particularly to a method for producing an immobilization carrier for microorganisms using granulation of blast furnace. It is about.
（従来の技術） 従来、生物膜を利用した固定型汚水処理の微生物用固定
化担体としては種々のものが作られている。特に鉄製の
過程で発生する鉱砕、特に高炉水砕はカルシウム、マグ
ネシウム、鉄、リンなど微生物の栄養源となる成分を含
有し、微生物との親和性に優れているため、固定床の微
生物用固定化担体として使用されている。たとえば、特
開昭57-75189号公報に示されるように鉱砕をそのまま粉
砕して利用したり、あるいは本発明者等が先に特願昭61
-221651号にて開示した如く、高炉水砕を主原料とし、
これに粘土等を混ぜ、一定形状に成形、焼成して微生物
用固定化担体としている。(Prior Art) Conventionally, various types of immobilization carriers for microorganisms for fixed-type sewage treatment using a biofilm have been produced. In particular, minerals generated in the process of iron production, especially blast furnace granulation, contain components that are nutrient sources for microorganisms such as calcium, magnesium, iron, and phosphorus, and have excellent affinity with microorganisms. It is used as an immobilization carrier. For example, as shown in Japanese Patent Application Laid-Open No. 57-75189, ores are crushed and used as they are, or the inventors of the present invention have previously applied for Japanese Patent Application No.
-221651, as disclosed in No. 221651, using blast furnace granulation as the main raw material,
Clay or the like is mixed with this, shaped into a fixed shape, and baked to obtain a microorganism-immobilized carrier.
（発明が解決しようとする問題点） ところが、このような従来の技術においては次のような
欠点があった。すなわち前者の場合には鉱砕を粉砕した
だけであるためその形状は一定せず、しかもその表面は
極めて凹凸の激しいものであり、固定床中の汚水の偏流
が生じやすかったり、また微生物の付着量が多くなりす
ぎ、目詰りが生じ、汚水の流動抵抗が大きくなり、結局
流動のために大きな動力を要するという欠点があった。
一方、後者の場合はこのような欠点はないものの、高炉
水砕を焼成するため高温炉および高温ガスを必要とし、
コスト高とならざるを得なかった。(Problems to be Solved by the Invention) However, such a conventional technique has the following drawbacks. That is, in the former case, the shape is not constant because it is only crushed crushed granules, and the surface is extremely uneven, which tends to cause uneven distribution of sewage in the fixed bed and adhesion of microorganisms. There is a drawback that the amount becomes too large, clogging occurs, the flow resistance of the sewage increases, and a large amount of power is required for the flow.
On the other hand, in the latter case, although there is no such drawback, a high-temperature furnace and high-temperature gas are required for firing granulated blast furnace,
The cost was high.
（問題点を解決するための手段） 本発明は、粒状の高炉水砕と合成樹脂とを混練し、サド
ル形またはリング形に成形することを特徴とする微生物
用固定化担体の製造方法、および、粒状の高炉水砕と合
成樹脂とを混練し、サドル形またはリング形に成形して
固化させた後成形物の表層部を機械的手段により剥ぎ取
ることを特徴とする微生物用固定化担体の製造方法であ
る。(Means for Solving Problems) The present invention relates to a method for producing an immobilization carrier for microorganisms, which comprises kneading granulated granulated blast furnace and a synthetic resin to form a saddle shape or a ring shape, and A granulated blast furnace granulation and a synthetic resin are kneaded and molded into a saddle shape or a ring shape to be solidified, and then the surface layer of the molded article is peeled off by mechanical means. It is a manufacturing method.
（作用） 本発明者等は、前述の欠点を解消すべく試作をする内、
高炉水砕を低温で成形することを考え、本発明をなすに
至った。すなわち、粒状の高炉水砕と合成樹脂とを混
ぜ、高炉水砕の粒子同志を接合状態としながら一定形状
に成形して、焼成することなく極めて低い温度で微生物
用固定化担体を作るわけである。本発明に使用する合成
樹脂としては、フェノール樹脂、キシレン樹脂、ホルム
アルデヒド樹脂およびケトン樹脂、尿素樹脂、メラミン
樹脂、アニリン樹脂、スルホンアミド樹脂、不飽和ポリ
エステル樹脂、エポキシ樹脂などの熱硬化性樹脂、ポリ
エチレン、ポリプロピレン、ポリブチレン、ポリスチレ
ン、酢酸ビニル、ポリアクリレート、ポリメタクリレー
ト、ポリ塩酸ビニル、ポリ塩化ビニリデン、ポリアクリ
ロニトリル、ポリビニルエーテル、ポリビニルケトン、
ポリエーテル、ポリカーボネート、熱可塑性ポリエステ
ル、ポリアミド等の熱可塑性の樹脂がある。また、高炉
水砕としては、好ましくは粒径が20〜500μｍで、CaO39
〜45％、MgO2〜８％、FeO0.1〜1.2％、SiO228〜37％、A
l2O312〜20％の粒子を用いる。(Operation) Among the prototypes made by the present inventors to solve the above-mentioned drawbacks,
The present invention has been accomplished in consideration of forming granulated blast furnace at a low temperature. That is, granulated granulated blast furnace and synthetic resin are mixed, and the granulated particles of the blast furnace are molded into a fixed shape while being in a joined state, and an immobilized carrier for microorganisms is produced at an extremely low temperature without firing. . Examples of the synthetic resin used in the present invention include phenol resin, xylene resin, formaldehyde resin and ketone resin, urea resin, melamine resin, aniline resin, sulfonamide resin, unsaturated polyester resin, epoxy resin and other thermosetting resins, polyethylene. , Polypropylene, polybutylene, polystyrene, vinyl acetate, polyacrylate, polymethacrylate, polyvinyl chloride, polyvinylidene chloride, polyacrylonitrile, polyvinyl ether, polyvinyl ketone,
There are thermoplastic resins such as polyether, polycarbonate, thermoplastic polyester, and polyamide. The granulated blast furnace preferably has a particle size of 20 to 500 μm and CaO39
~45%, MgO2~8%, FeO0.1~1.2% , SiO 2 28~37%, A
l 2 O 3 12-20% particles are used.
これらの合成樹脂と高炉水砕との配合割合は、その合成
樹脂の物性によっても異なるが、重量比で高炉水砕／合
成樹脂＝１より小さいことが好ましい。配合割合が大き
くなると高炉水砕が合成樹脂に包み込まれてしまうから
である。The mixing ratio of these synthetic resin and granulated blast furnace varies depending on the physical properties of the synthetic resin, but it is preferable that the granulated blast furnace granulated / synthetic resin is less than 1 by weight. This is because when the blending ratio becomes large, the granulated blast furnace is wrapped in the synthetic resin.
本発明ではこのように粒状の高炉水砕と合成樹脂とを混
練してこれをサドル形またはリング形に成形して微生物
用固定化担体を製造するが、成形時に高炉水砕の粒子が
成形体の内側に集中しやすいので、このような場合には
前述の方法で製造した成形物の表層部を機械的手段、た
とえば切削、研削、サンドブラスト等によって剥ぎ取
り、高炉水砕が最表面により多く露出するように処理す
る。In the present invention, the granular granulated blast furnace and the synthetic resin are kneaded in this way to form a saddle-shaped or ring-shaped immobilizing carrier for microorganisms. In such a case, the surface layer of the molded product manufactured by the above-mentioned method is peeled off by mechanical means such as cutting, grinding, sandblasting, etc., and the granulated blast furnace is exposed more on the outermost surface. Process as you do.
（実施例） 平均粒径200μｍの高炉水砕800gと合成樹脂（ポリ塩化
ビニル）1200gとを混合し、150℃に加熱しながら径24mm
のリングに押出成形した。この押出成形物を径と同じ24
mmで切断し、成形体とした。次にこの成形体についてサ
ンドブラストによる機械的な操作を行うことで表層の樹
脂を剥ぎ取って微生物用固定化担体とした。このように
してできた担体のランダムにカラムに詰め込んだ場合の
空間率は90％、表面積は200m2/m3、表面粗さは150μｍ
であった。(Example) Mixing 800 g of granulated blast furnace having an average particle size of 200 μm and 1200 g of synthetic resin (polyvinyl chloride), and heating to 150 ° C., a diameter of 24 mm
Extruded into a ring. This extrudate has the same diameter as 24
It was cut into mm to obtain a molded body. Next, the molded body was subjected to a mechanical operation by sandblasting to peel off the resin in the surface layer to obtain an immobilized carrier for microorganisms. When the carriers thus prepared are randomly packed in a column, the porosity is 90%, the surface area is 200 m 2 / m 3 , and the surface roughness is 150 μm.
Met.
（発明の効果） 本発明は以上のように合成樹脂を使用して粒状の高炉水
砕を接合状態で成形するため800℃に及ぶ焼成工程がな
く、低コストにて担体の成形体を得ることができる。し
かも高炉水砕と微生物との親和性はまったくそこなわれ
ることがないため、極めて優れた微生物用固定化担体の
製造方法である。(Effects of the Invention) Since the present invention uses the synthetic resin to form granular blast furnace granules in the joined state as described above, there is no firing step up to 800 ° C, and a molded body of a carrier can be obtained at low cost. You can Moreover, since the affinity between the granulated blast furnace and the microorganisms is not impaired at all, it is an extremely excellent method for producing an immobilized carrier for microorganisms.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 室永 武久 佐賀県西松浦郡有田町1288番地 岩尾磁器 工業株式会社内 (72)発明者 藤井 隆治 佐賀県西松浦郡有田町1288番地 岩尾磁器 工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takehisa Muronaga 1288 Arita-cho, Nishimatsuura-gun, Saga Iwao Porcelain Industry Co., Ltd. (72) Ryuji Fujii 1288 Arita-cho, Nishimatsuura-gun Saga Prefecture Iwao Porcelain Industry Co., Ltd.
Claims (2)
ドル形またはリング形に成形することを特徴とする微生
物用固定化担体の製造方法。1. A method for producing an immobilized carrier for microorganisms, which comprises kneading granulated granulated blast furnace and synthetic resin to form a saddle shape or a ring shape.
ドル形またはリング形に成形して固化させた後成形物の
表層部を機械的手段により剥ぎ取ることを特徴とする微
生物用固定化担体の製造方法。2. Microorganisms characterized by kneading granulated granulated blast furnace and synthetic resin, molding into a saddle shape or ring shape and solidifying, and then peeling off the surface layer of the molded article by mechanical means. Method for producing immobilized carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62129728A JPH0671597B2 (en) | 1987-05-28 | 1987-05-28 | Method for producing immobilized carrier for microorganisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62129728A JPH0671597B2 (en) | 1987-05-28 | 1987-05-28 | Method for producing immobilized carrier for microorganisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63296891A JPS63296891A (en) | 1988-12-02 |
| JPH0671597B2 true JPH0671597B2 (en) | 1994-09-14 |
Family
ID=15016729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62129728A Expired - Fee Related JPH0671597B2 (en) | 1987-05-28 | 1987-05-28 | Method for producing immobilized carrier for microorganisms |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671597B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416297A (en) * | 1990-05-11 | 1992-01-21 | Nippon Steel Corp | Immobilizing carrier for fixed bed type activated sludge treatment of waste water and treatment of waste water |
| JPH0796115B2 (en) * | 1991-08-21 | 1995-10-18 | 新日本製鐵株式会社 | Water treatment contact material |
| KR100419284B1 (en) * | 2001-03-09 | 2004-02-19 | 김혜곤 | The Pellets for Removing Phosphorous Using Wastes and Its Manufacturing Method |
| CN101791647B (en) * | 2010-04-15 | 2013-05-29 | 中材科技股份有限公司 | Molding method and mold of multi-row joist type large drainboard bottom plate |
| EP2907594A1 (en) * | 2014-02-18 | 2015-08-19 | ASO Siderurgica S.p.A. | Polymeric matrix composite material and production process therefor |
-
1987
- 1987-05-28 JP JP62129728A patent/JPH0671597B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63296891A (en) | 1988-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |