JP2000015019A - Inorganic porous body coated with carbon - Google Patents
Inorganic porous body coated with carbonInfo
- Publication number
- JP2000015019A JP2000015019A JP10188426A JP18842698A JP2000015019A JP 2000015019 A JP2000015019 A JP 2000015019A JP 10188426 A JP10188426 A JP 10188426A JP 18842698 A JP18842698 A JP 18842698A JP 2000015019 A JP2000015019 A JP 2000015019A
- Authority
- JP
- Japan
- Prior art keywords
- carbon
- porous body
- inorganic porous
- porous
- coated
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水質等の浄化作用
に優れたカーボン被覆無機質多孔体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbon-coated inorganic porous material which is excellent in purifying water and the like.
【０００２】[0002]
【従来の技術】従来から、水質浄化には様々な濾過材料
が用いられている。これら濾過材料は、物理的、化学的
及び、電気化学的吸着作用等によって水中の不純物を除
去するが、具体的な除去の仕組みが完全に解明されてい
るとはいえない。濾過材料で優れているものには、特徴
の一つとして多孔質であることで、例えば、活性炭、
炭、軽石やサンゴ等が該当する。本出願人が先に開発し
ている多孔質セラミックス(多孔質シリカ焼成体)濾過材
もその一つである。ここにいう多孔質セラミックスとは
後に実施例でも示すが、シリカ系天然素材を特殊な焼成
方法によって多孔質とした人工の濾過材料であって、水
の浄化能力において天然のサンゴと比べほぼ同等の性能
を有している。2. Description of the Related Art Conventionally, various filtration materials have been used for water purification. These filtration materials remove impurities in water by physical, chemical, and electrochemical adsorption actions, but the specific removal mechanism has not been completely elucidated. What is excellent in filtration material is that one of its features is porous, for example, activated carbon,
Charcoal, pumice stone, coral, etc. correspond. The porous ceramics (porous silica fired body) filter material developed earlier by the present applicant is one of them. The term “porous ceramics” as used herein will be shown in Examples later, but it is an artificial filter material made of a silica-based natural material and made porous by a special firing method, and has almost the same water purification ability as natural corals. Has performance.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、生物浄
化を行なうバクテリアの増殖について単純に比較すると
天然のサンゴの方が多孔質セラミックより優れている。
これは天然の産物であるが故に栄養物とバクテリアが付
着しているからと推定される。しかし、電気化学的(シ
ラノール基がマイナス電荷を帯びる)な凝集沈殿や、物
理的浄化効果等によって水質の上質化の面で多孔質セラ
ミックがサンゴより優れている。本発明者は多孔質セラ
ミックの生物浄化作用等を更に高めて、サンゴ等天然の
ものよりも格段に優れた濾過材料を得るべく検討した。However, a simple comparison of the growth of bacteria for biopurification shows that natural corals are superior to porous ceramics.
This is presumed to be due to the attachment of nutrients and bacteria because it is a natural product. However, porous ceramics are superior to corals in terms of improving water quality due to electrochemical coagulation and precipitation (silanol groups have a negative charge) and physical purification effects. The inventor of the present invention has studied to further enhance the biological purification action of the porous ceramic and to obtain a filtration material which is much better than natural materials such as corals.
【０００４】[0004]
【課題を解決するための手段】上記課題を検討した結
果、無機質多孔体をカーボン源となる有機物の存在下に
還元雰囲気中で加熱加圧して、気孔を含む多孔体表面に
カーボン薄膜層を形成してなるカーボン被覆無機質多孔
体とした。ここにいう無機質多孔体には、前記多孔質セ
ラミックが発明の目的に合致して好ましいが、この多孔
質セラミック以外にも還元雰囲気中での加熱加圧に耐え
る無機質多孔体、例えば天然に得られる軽石、珪藻土、
坑火石、大谷石等や、人工の無機質多孔体等を含む。As a result of studying the above problems, an inorganic porous body is heated and pressurized in a reducing atmosphere in the presence of an organic substance serving as a carbon source to form a carbon thin film layer on the surface of the porous body containing pores. The resulting carbon-coated inorganic porous body was obtained. For the inorganic porous material referred to herein, the above-mentioned porous ceramic is preferable in accordance with the object of the invention, but other than this porous ceramic, an inorganic porous material which can withstand heating and pressurizing in a reducing atmosphere, for example, naturally obtained Pumice, diatomaceous earth,
Includes mining stone, valley stone, artificial inorganic porous materials, and the like.
【０００５】カーボン源となる有機物には樹脂、油脂、
気化性有機化合物(有機ガス)等が還元雰囲気で炭素供給
源となり得る。特にプロパン、ブタンガスが炭素源とな
るのに容易で、加熱加圧炉内に充満しやすく、カーボン
被覆無機質多孔体の製造に適している。[0005] Organic substances serving as carbon sources include resins, fats and oils,
A vaporizable organic compound (organic gas) or the like can serve as a carbon source in a reducing atmosphere. Particularly, propane and butane gas are easily used as a carbon source and easily filled in a heating and pressurizing furnace, and are suitable for producing a carbon-coated inorganic porous material.
【０００６】[0006]
【発明の実施の形態】実施例１ （1）母体の多孔質セラミックスの作成 まず、初めに母体となる多孔質セラミックスが浄化に必
要な性質を持つよう設計した。 （a）電気化学的浄化作用（凝集沈殿除去作用）を強く
するため(シラノール基‐Si‐OH)、化学成分SiO2量を88
％以上の配合にした。物理的濾過浄化作用等を大にする
ため、可燃物として樹脂粉を500容積％加え、多孔体を
作った。配合割合を表１に示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Example 1 (1) Preparation of a porous ceramic as a matrix First, a porous ceramic to be a matrix was designed so as to have properties necessary for purification. (A) In order to enhance the electrochemical purification action (coagulation / sediment removal action) (silanol group-Si-OH), the chemical component SiO 2 amount should be 88
% Or more. In order to increase the physical filtration and purification action, a porous body was prepared by adding 500% by volume of resin powder as a combustible substance. The proportions are shown in Table 1.
【０００７】[0007]
【表１】 [Table 1]
【０００８】（b）上記配合割合の組成物に水分を90％
程度加え、十分に混練した後、オーガーで造粒した。80
℃で72時間乾燥を行い、その後1300℃で焼成を行って、
母体となる多孔質セラミックスを得た。表２に得られた
母体の多孔質セラミックスの分析結果及び性状を示す。(B) 90% of water is added to the above composition.
After adding to a certain degree and sufficiently kneading, the mixture was granulated with an auger. 80
Drying at 72 ° C for 72 hours, then firing at 1300 ° C,
A porous ceramic as a base was obtained. Table 2 shows the analysis results and properties of the obtained base porous ceramics.
【０００９】[0009]
【表２】 [Table 2]
【００１０】（2）カーボン被覆処理 前記母体となる多孔質セラミックスを1000℃に加熱し、
1000℃の状態を３時間保持した後、加熱をストッブし、
930℃まで温度を下げた。930℃に到達したところでファ
ーネス(炉)を密閉しブロパンガスを注入し、ついで窒素
ガスを入れ正圧にした。温度の低下ならびにガスリーク
により炉圧が下がればその都度窒素ガスを注入する。35
0℃までこのような還元状態を保ち、350℃以降は自然に
放置した状態で冷却した。得られたカーボン披覆セラミ
ックスの性状を表３に示す。(2) Carbon coating treatment The above-mentioned porous ceramic serving as a matrix is heated to 1000 ° C.
After holding the temperature of 1000 ℃ for 3 hours, stop the heating,
The temperature was lowered to 930 ° C. When the temperature reached 930 ° C., the furnace (furnace) was closed, a propane gas was injected, and then a nitrogen gas was charged to a positive pressure. Nitrogen gas is injected each time the furnace pressure drops due to a temperature drop or gas leak. 35
Such a reduced state was maintained until 0 ° C., and after 350 ° C., it was cooled while being left naturally. Table 3 shows the properties of the obtained carbon coated ceramics.
【００１１】[0011]
【表３】 [Table 3]
【００１２】実施例２ レゾール型フェノール樹脂にエチレングリコールを加
え、粘度を1.79V(cst)程度に低下した液を実施例１で得
た多孔質セラミックスが漬かるように加え、10torrで３
時問減圧含浸させる。樹脂液を排出し、細孔中に樹脂が
入った試料を雰囲気炉で還元状態（窒素）で500℃×５
時間の焼成を行った。得られたカーボン披覆セラミック
スの性状を表４に示す。Example 2 Ethylene glycol was added to a resole type phenolic resin, and a liquid having a viscosity reduced to about 1.79 V (cst) was added so that the porous ceramic obtained in Example 1 was immersed.
It is impregnated with the reduced pressure occasionally. The resin liquid is discharged, and the sample containing the resin in the pores is reduced in an atmosphere furnace (nitrogen) at 500 ° C. × 5.
Time firing was performed. Table 4 shows the properties of the obtained carbon coated ceramics.
【００１３】[0013]
【表４】 [Table 4]
【００１４】実施例３ 天然軽石（商品名）にカーボン被覆処埋を行った。カー
ボン被覆処理は実施例１と同様のカーボン被覆処埋法で
行った。得られたカーボン披覆セラミックスの性状を表
５に示す。Example 3 A natural pumice (trade name) was carbon-coated. The carbon coating treatment was performed by the same carbon coating embedding method as in Example 1. Table 5 shows the properties of the obtained carbon coated ceramics.
【００１５】[0015]
【表５】 [Table 5]
【００１６】浄化性能比較 (a）生物浄化作用、(b)物理的濾過浄化作用、(c)水質の
保持作用、（d）凝集沈殿除去作用について性能比較試
験を行なった。その結果を表６示し、更にコメントし
た。文章中優れている方を＞で示す。Comparison of Purification Performance A performance comparison test was performed on (a) a biological purification action, (b) a physical filtration purification action, (c) a water quality retention action, and (d) an agglomerated precipitation removal action. The results are shown in Table 6 and further commented. Those who are superior in the text are indicated by>.
【００１７】[0017]
【表６】 [Table 6]
【００１８】（a）生物浄化作用 カーボン被覆セラミックス＞サンゴ、多孔質セラミック
ス サンゴが優れた生物浄化作用を持っているが、カーボン
被覆セラミックスはそれよりも優れた生物浄化作用があ
る。(A) Biological Purification Action Carbon-Coated Ceramics> Coral, Porous Ceramics Corals have an excellent biopurification action, but carbon-coated ceramics have a better biopurification action.
【００１９】（b）物理的濾過浄化作用 カーボン被覆セラミックス＞多孔質セラミックス 湖水を一定時間、上記セラミックスに通して、COD、光
の透過能の改善効果を実験したところ、明らかにカーボ
ン被覆セラミックスが優位であった。(B) Physical filtration and purification action Carbon-coated ceramics> Porous ceramics Lake water was passed through the above-mentioned ceramics for a certain period of time to test the effect of improving COD and light transmission. Clearly, carbon-coated ceramics were superior. Met.
【００２０】（c）水質の保持作用 カーボン被覆セラミックス＞多孔質セラミックス 同一条件で観賞魚を飼育したところ、水の汚濁、アオコ
の発生状況に差違が認められた。明らかにカーボン被覆
セラミックスが優れている。(C) Water Quality Retaining Action Carbon-Coated Ceramics> Porous Ceramics When ornamental fish were bred under the same conditions, differences were observed in water pollution and water bloom. Clearly, carbon-coated ceramics are superior.
【００２１】（d）凝集沈殿除去作用 カーボン被覆セラミックス＞多孔質セラミックス 多孔質セラミックスはSiO2成分量が約89％と高いのでシ
ラノール基(‐Si-OH)ができる。それによりマイナスに
帯電し、プラスに帯電したタンパク質系汚濁物を凝集沈
殿させる。カーボン被覆セラミックスの凝集沈殿除去作
用は多孔質セラミックスより大きい。(D) Agglomerated sediment removal action Carbon-coated ceramics> porous ceramics Since porous ceramics have a high SiO 2 content of about 89%, silanol groups (—Si—OH) are formed. This causes the protein-based contaminants that are negatively charged and positively charged to aggregate and precipitate. The effect of removing the coagulated sediment of the carbon-coated ceramic is larger than that of the porous ceramic.
【００２２】（e）脱色、脱臭作用 母体の多孔質セラミックスには全くこの作用はなかった
が、カーボン被覆セラミックスではこの特性が新たに加
味されている。カーボンの被覆層に活性炭と同様な組織
が造られた訳である。カーボン被覆セラミックスは母体
の多孔質セラミックスの特性とそのままか，更に良くな
った形で引き継ぎ、従来なかった脱色、脱臭作用が新た
に加わり浄化材料として最良のものとなっている。(E) Decolorization and deodorizing action The porous ceramic of the base material did not have this action at all, but this property is newly added to the carbon-coated ceramics. That is, a structure similar to activated carbon was formed in the carbon coating layer. The carbon-coated ceramics are inherited in the same or better form as the properties of the base porous ceramics, and are newly added to the conventional decoloring and deodorizing effects, making them the best purification materials.
【００２３】[0023]
【発明の効果】本発明のカーボン披覆セラミックスは、
水の浄化性能が優れていること、バクテリヤの増殖の場
として優れていること、等により水の各部門での浄水材
としての用途とバイオ関係の用途、さらには空気清浄関
係の用途等に広範囲に使用できる無機質多孔体となって
いる。According to the present invention, the carbon covering ceramics
Due to its excellent water purification performance and its excellent place for bacterial growth, it is widely used for water purification in various departments of water, bio-related applications, and air purification-related applications. It is an inorganic porous material that can be used for:
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D003 AA01 AA08 EA14 EA22 EA23 EA24 EA25 EA30 EA38 4D019 AA01 AA03 BA01 BA03 BA05 BA07 BB06 BB08 BB12 BC05 BC10 BD01 BD03 BD10 CB06 4D024 AA01 AA04 AA05 AA06 AA07 AA08 AB01 AB02 AB04 AB07 BA03 BA05 BB01 BB06 BB07 DB03 DB14 DB21 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D003 AA01 AA08 EA14 EA22 EA23 EA24 EA25 EA30 EA38 4D019 AA01 AA03 BA01 BA03 BA05 BA07 BB06 BB08 BB12 BC05 BC10 BD01 BD03 BD10 CB06 4D024 AA01 AB04 AA03 AB BA05 BB01 BB06 BB07 DB03 DB14 DB21
Claims (3)
の存在下に還元雰囲気中で加熱加圧して、気孔を含む多
孔体表面にカーボン薄膜層を形成してなるカーボン被覆
無機質多孔体。1. A carbon-coated inorganic porous material, comprising heating and pressurizing an inorganic porous material in a reducing atmosphere in the presence of an organic substance serving as a carbon source to form a carbon thin film layer on the surface of a porous material containing pores.
る請求項１記載のカーボン被覆無機質多孔体。2. The carbon-coated inorganic porous body according to claim 1, wherein the inorganic porous body is a porous ceramic.
気化性有機化合物である請求項１記載のカーボン被覆無
機質多孔体。3. An organic substance serving as a carbon source is a resin, oil or fat,
The carbon-coated inorganic porous material according to claim 1, which is a vaporizable organic compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10188426A JP2000015019A (en) | 1998-07-03 | 1998-07-03 | Inorganic porous body coated with carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10188426A JP2000015019A (en) | 1998-07-03 | 1998-07-03 | Inorganic porous body coated with carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000015019A true JP2000015019A (en) | 2000-01-18 |
Family
ID=16223474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10188426A Pending JP2000015019A (en) | 1998-07-03 | 1998-07-03 | Inorganic porous body coated with carbon |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000015019A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008500893A (en) * | 2004-05-28 | 2008-01-17 | セム ストーン | Pumice composite containing carbon, its production method and its application |
| KR100972505B1 (en) * | 2003-09-24 | 2010-07-26 | 주식회사 엘지생활건강 | A porous inorganic particle for deodorization having carbon-coated pore and manufacturing method thereof |
| CN109179688A (en) * | 2018-09-17 | 2019-01-11 | 南京大学 | A kind of denitrifying carbon source and preparation method thereof |
-
1998
- 1998-07-03 JP JP10188426A patent/JP2000015019A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100972505B1 (en) * | 2003-09-24 | 2010-07-26 | 주식회사 엘지생활건강 | A porous inorganic particle for deodorization having carbon-coated pore and manufacturing method thereof |
| JP2008500893A (en) * | 2004-05-28 | 2008-01-17 | セム ストーン | Pumice composite containing carbon, its production method and its application |
| CN109179688A (en) * | 2018-09-17 | 2019-01-11 | 南京大学 | A kind of denitrifying carbon source and preparation method thereof |
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