JP3787421B2 - Active adsorbent and method for producing the same - Google Patents
Active adsorbent and method for producing the same Download PDFInfo
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- JP3787421B2 JP3787421B2 JP19167297A JP19167297A JP3787421B2 JP 3787421 B2 JP3787421 B2 JP 3787421B2 JP 19167297 A JP19167297 A JP 19167297A JP 19167297 A JP19167297 A JP 19167297A JP 3787421 B2 JP3787421 B2 JP 3787421B2
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- pumice
- oil
- graphite silica
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- active adsorbent
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Description
【0001】
【発明の属する技術分野】
本発明は、軽石などの多孔質体を使用した活性吸着剤に関する。
【0002】
【従来の技術】
天然の多孔質体を代表する軽石は、特開平7−251188号公報などに、湖沼水及び河川水の濁質を除去するための濾過材として利用したものが開示されている。また、特開平8−68034号公報には、軽石及びカーボンを、河床の浄化機能を有する護床ブロックに配設する濾過材として利用したものが開示されている。
【0003】
また一方において、天然グラファイトシリカの利用については、出願人自身が、除菌剤、地上植物及び水中動植物への育成促進剤としての利用を特願平9−34160号出願と、特願平9−56731号出願において開示した。
【0004】
【発明が解決しようとする課題】
本発明の課題は、軽石などの多孔質体がもつ表面比が大きくカーボンがもつ活性能及びグラファイトシリカがもつ除菌能のそれぞれの特長を併せ活かした安価で高性能な活性吸着剤を得ることにある。
【0005】
【課題を解決するための手段】
本発明は、表面比が大きい多孔質体の表面から内部細孔の内面に渡るまで、カーボンとグラファイトシリカを付着させることによって、それぞれがもつ機能を効率よく発揮させるものである。
【0006】
その適用範囲は、農業用水、畜産汚染水、地下水、ため池や湖沼、プール、風呂などの有機物汚染廃水についての除菌・消臭・浄化、及び水道水内の残留塩素除去など、特に水の浄化に有効に機能する。また、冷蔵庫などの消臭剤や水耕栽培用として適している。
【0007】
本発明の活性吸着剤の製造方法としては、例えば、微細な粉末を多孔質体にまぶす、或いは、何らかのバインダーを用いて、多孔質体に塗布するなど方法が考えられるが、これらの方法では、カーボンとグラファイトシリカを多孔質体の細孔内面まで付着させるのは困難である。
【0008】
しかしながら、多孔質体を一定時間微細粉末にしたグラファイトシリカを混入した油の中に浸し、油が細孔内部に含浸するのに混ざって微細粉末が細孔内部まで浸入できるため、比較的容易に、グラファイトシリカ粉末を多孔質体に含浸させることができる。
【0009】
そして、これを還元雰囲気中で加熱することにより、油の酸化を防ぎ、含浸した状態のまま、油を炭化させることが可能となる。さらに、グラファイトシリカの微細粉末を同時に含浸させる場合は、油中に、陶土の微細粉末をグラファイトシリカとともに混合することによって、この陶土がバインダーとなり、グラファイトシリカの流出を防ぐことができる。
【0010】
多孔質体としては、細孔の直径が一定の大きさ(食用油、或いは、グラファイトシリカ等の微細粉末が含浸できる大きさ)以上の条件を有する物であれば、いずれの物も使用できるが、特に、軽石の場合においては、細孔の直径が比較的大きいものから小さいものまで様々であり、単価が安く、埋蔵量も多いという点から都合がよい。
【0011】
含浸用食用油としては、菜種油、紅花油、コーン油、オリーブ油、落花生油、綿実油、大豆油、胡麻油、豚油、牛油、やし油等が使用できるが、とくに単価が安く、常温で液体を呈し、一般に使用量が多いと考えられる点から、菜種油あるいはその廃液が、好適に使用できる。
【0012】
この含浸用食用油に天然グラファイトシリカを含有させる方法としては、グラファイトシリカを、粒径5ミクロン以下の微細粉末とし、攪拌機などによって、完全な懸濁液とするのが望ましい。
【0013】
本発明における除菌機能や塩素除去機能、消臭機能などの浄化能力の仕組みとしては、木炭や活性炭などに、菌や塩素などが吸着するのと同様の仕組みであり、表面比が大きくなれば、その効果も大きくなる。
【0014】
なお、本発明の活性吸着剤は、グラファイトシリカを用いた場合は、グラファイトシリカ本来の能力である菌の繁殖抑制機能、及び植物の生育促進機能を合わせ持つ活性吸着剤となる。
【0015】
【0016】
【0017】
【0018】
【0019】
【0020】
【発明の実施の形態】
【実施例】
実施例1
この実施例は、多孔質体の表面と細孔内面にカーボンと天然鉱石グラファイトシリカの粉末を付着させた活性吸着剤の除菌に関する特性を示す。
【0021】
菜種油100gに対し、微細粉末とした、グラファイトシリカ30g(平均粒径:5ミクロン)と陶土7.5g(平均粒径:15ミクロン)を混合した油に、多孔質体の構造を有する市販の軽石を浸し、油を含浸させた。その後、金網などのネットで油を切り、それを容器に入れ、還元雰囲気の焼成炉の中で約7時間かけて1100℃程度まで加熱した。約1時間ほど1100℃程度の状態を保ち、その後、自然放冷するのを待って容器を取り出し、カーボン、及びグラファイトシリカ、陶土が細孔内面まで付着した軽石である本発明品を得た。
【0022】
この様にして得た本発明品300gを、ステンレス製網容器に入れ、菌を含む試験水800mlが入っているビーカーに、本発明品が全て試験水に浸かる様に固定した。このビーカー内の試験水を、室温(25℃)に置き、低速回転で攪拌し続ける。
【0023】
本発明品を試験水に入れた時点を0時間とし、所定時間毎に回転を止め、ビーカー内の試験水を採水し、4段階から5段階に滅菌生理食塩水(0.85%NaCl水溶液)で希釈した。この希釈した試験水1mlと、あらかじめ溶解、蒸気圧滅菌しておいた標準寒天培地(日水製薬株式会社)15mlとを滅菌シャーレで混合し、平板(プレート)を作成した。その平板を36℃で24時間培養した後、コロニーが100個程度のコロニー数を計算し、試験水1ml中の細菌数を算出した。比較例として、カーボンなどが付着していない軽石を用いて同様の試験を行った。
【0024】
その結果得られた生菌数の経時変化を表1と図1に示す。
【0025】
【表1】
この表1と図1からわかるように、本発明品においては、2時間後、急激に菌が減少し、しかも、その効果は長期に渡って維持されている。これに対して、比較例の軽石は極めて緩やかな除菌効果を示しているにすぎず、24時間後以降は除菌効果は失われている。
実施例2
この実施例は、多孔質体に含浸させる食用油として、菜種油の廃油にグラファイトシリカと陶土の微細粉末を混合したものを用いて製造した活性吸着剤の除菌に関する特性を示す。
【0026】
菜種油の使い古した廃油100gに対し、微細粉末とした、グラファイトシリカ20g(平均粒径:5ミクロン)と陶土5g(平均粒径:15ミクロン)を混合した油に、市販の軽石を一定時間浸し、油を含浸させた。その後、金網などのネットで油を切り、それを容器に入れ、還元雰囲気の焼成炉の中で約7時間かけて1100℃程度まで加熱した。約1時間ほど1100℃程度の状態を保ち、その後、自然放冷するのを待って容器を取り出し、カーボン、及びグラファイトシリカ、陶土が細孔内面まで付着した軽石である本発明品を得た。
【0027】
この様にして得た本発明品300gを、ステンレス製網容器に入れ、菌を含む試験水800mlが入っているビーカーに、本発明品が全て試験水に浸かる様に固定した。このビーカー内の試験水を、室温(25℃)に置き、低速回転で攪拌し続ける。
【0028】
本発明品を試験水に入れた時点を0時間とし、所定時間毎に回転を止め、ビーカー内の試験水を採水し、4段階から5段階に滅菌生理食塩水(0.85%NaCl水溶液)で希釈した。この希釈した試験水1mlと、あらかじめ溶解、蒸気圧滅菌しておいた標準寒天培地(日水製薬株式会社)15mlとを滅菌シャーレで混合し、平板(プレート)を作成した。その平板を36℃で24時間培養した後、コロニーが100個程度のコロニー数を計算し、試験水1ml中の細菌数を算出した。比較例として、カーボンなどが付着していない軽石を用いて同様の試験を行った。
【0029】
その結果得られた生菌数の経時変化を表2と図2に示す。
【0030】
【表2】
表2と図2からわかるように、本発明品においては、2時間後、急激に菌が減少し、しかも、その効果は長期に渡って維持されている。これに対して、比較例の軽石は極めて緩やかな除菌効果を示しているにすぎず、24時間後以降は除菌効果は失われている。
実施例3
この実施例は、多孔質体の表面と細孔内面にカーボンと天然鉱石グラファイトシリカの粉末を付着させた活性吸着剤の残留塩素除去効果に関する特性を示す。
【0031】
上記2種類の本発明品、各180gを、それぞれ500ml耐圧ガラス瓶(容量約600ml)に分取し、水道水を加えて満水密栓後、20℃で保存した。水道水を入れた時点を0時間とし、所定時間毎に、各耐圧ガラス瓶より15mlを採水し、簡易OT(オルトトリジン)法により、残留塩素濃度の測定を行った。比較例として、カーボンなどが付着していない軽石を用いて同様の試験を行った。また、500ml耐圧ガラス瓶を水道水のみで満水密栓して、同様の試験を行った。
【0032】
その結果得られた残留塩素濃度の経時変化を表3と図3に示す。
【0033】
【表3】
表3と図3からわかるように、本発明品(軽石+菜種油)は、水道水に含有されている程度の残留塩素であれば除去できることがわかる。これに対して、比較例の軽石は、24時間後においても、全ての残留塩素を除去することができない。また、本発明品(軽石+菜種油+GS+陶土)においても、比較例の軽石に比べれば、残留塩素の除去能力が高いのがわかる。
実施例4
この実施例は、多孔質体の表面と細孔内面にカーボン、或いはカーボンと天然鉱石グラファイトシリカの粉末を付着させた活性吸着剤の消臭効果に関する特性を示す。
【0034】
実施例1と実施例3の2種類の本発明品、各10gを、それぞれ5000mlテドラーバッグに分取し、H2S標準ガスを濃度が約80ppmになるように窒素ガスで希釈し封入した。その後、それぞれテドラーバッグを30秒間振り混ぜ、25℃の状況下で静置した。ガスを封入した時点を0時間とし、所定時間毎に、テドラーバッグからガスのサンプリングを行い、検知管を用いてH2S濃度の測定を行った。比較例として、カーボンなどが付着していない軽石を用いて同様の試験を行った。また、ブランクとして、5000mlテドラーバッグ内にH2S濃度80ppmの窒素ガスのみを封入して、同様の試験を行った。
【0035】
その結果得られたH2S濃度の経時変化を表4と図4に示す。
【0036】
【表4】
この表4と図4からわかるように、2種類の本発明品は、空気中における消臭効果がある。特に、本発明品(軽石+菜種油+GS+陶土)における消臭効果は強力で、1時間で90%以上のH2Sを除去できることがわかる。
実施例5
この実施例は、多孔質体の表面と細孔内面にカーボン、或いはカーボンと天然鉱石グラファイトシリカの粉末を付着させた活性吸着剤が示すpHに関する特性を示す。
【0037】
実施例1と実施例2の本発明品、各20gを、それぞれビーカーに入れ、それに蒸留水100mlを加え低速回転で攪拌し続ける。pH測定器により所定時間毎に、ビーカー内の水のpHを測定した。比較例として、カーボンなどが付着していない軽石を用いて同様の試験を行った。また、蒸留水100mlのみをビーカーに入れ同様の試験を行った。
【0038】
なお、その結果を表5と図5に示す。
【0039】
【表5】
この表5と図5から、3種類の本発明品によって処理した水は、何れも弱アルカリ性を示し、飲料水の基準値(pH 5.8〜8.6)をクリアしていることがわかる。
【0040】
実施例6
この実施例は、多孔質体の表面と細孔内面にカーボン、或いはカーボンと天然鉱石グラファイトシリカの粉末を付着させた活性吸着剤の生育促進効果に関する特性を示す。
【0041】
実施例1の本発明品(軽石+菜種油+GS+陶土)22.5gを、それぞれ球根用水栽培容器内の水道水750ccに混入し、ヒヤシンス(品種名:レディーダービー)の育成試験を行った。比較例として、カーボンなどが付着していない軽石を用いて同様の試験を行った。
【0042】
その結果、実施例1の本発明品(軽石+菜種油+GS+陶土)を用いた場合においては、栽培開始から70日後の根の長さが、比較例の軽石を用いた場合は平均13cmであるのに対し、本発明品(軽石+菜種油+GS+陶土)を用いた場合は平均17cmであった。この結果から、本発明品(軽石+菜種油+GS+陶土)である活性吸着剤は、水栽培において、高い生育促進効果があることが判明した。
【0043】
【発明の効果】
本発明の活性吸着剤によって以下の効果を奏する。
【0044】
(1)多孔質体に含浸させる油は、廃油でも構わないため、廃油のリサイクルが可能となり、コストの面でも経済的となる。
【0045】
(2)多孔質体には、サンゴ粒やレンガなど様々なものを用いることができるが、軽石を用いれば、比較的安価で、埋蔵量も大量であるため安定供給が可能である。また、軽量であるため、輸送費の面でも経済的である。
【0046】
(3)本発明に用いている原料は天然成分であるため、生産において、有害物質などの副産物が出ない。
【0047】
(4)本発明の製造方法を用いて、様々な微細粉末を多孔質体などに付着させることが可能となる。
【0048】
(5)本発明の製造工程は比較的単純なものであり、また、特別な技術を必要としない。
【図面の簡単な説明】
【図1】 実施例1における生菌数の経時変化を示す。
【図2】 実施例2における生菌数の経時変化を示す。
【図3】 実施例3における残留塩素濃度の経時変化を示す。
【図4】 実施例4における硫化水素濃度の経時変化を示す。
【図5】 実施例5におけるpH値の経時変化を示す。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an active adsorbent using a porous material such as pumice.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 7-251188 discloses a pumice stone that represents a natural porous body, which is used as a filter material for removing turbidity of lake water and river water. Japanese Patent Application Laid-Open No. 8-68034 discloses that pumice and carbon are used as a filtering material disposed in a floor protection block having a river bed purification function.
[0003]
On the other hand, regarding the use of natural graphite silica, the applicant himself applied for application as a disinfectant, a growth promoter for above-ground plants and underwater animals and plants, and Japanese Patent Application No. 9-34160 and Japanese Patent Application No. 9- It was disclosed in the 56731 application.
[0004]
[Problems to be solved by the invention]
An object of the present invention, obtained at a low cost with high performance active adsorbents utilizing combined respective features of Jokin'no surface ratio porous body has has the activity performance and graphite silica with the greatly carbon such pumice There is.
[0005]
[Means for Solving the Problems]
The present invention is, from the surface of the surface ratio is greater porous body to over the inner surface of the pores, by depositing carbon and graphite silica is intended to exert the function of each has efficiently.
[0006]
The scope of application is water purification such as sterilization, deodorization and purification of organic polluted wastewater such as agricultural water, livestock contaminated water, groundwater, ponds and lakes, pools, baths, etc., and removal of residual chlorine in tap water. It works effectively. Moreover, it is suitable for deodorizers such as refrigerators and hydroponics.
[0007]
As a method for producing the active adsorbent of the present invention, for example, a fine powder is applied to the porous body, or a method of applying the binder to the porous body using some binder is conceivable. In these methods, It is difficult to adhere carbon and graphite silica to the inner surface of the pores of the porous body.
[0008]
However, since the porous body is immersed in oil mixed with graphite silica, which is fine powder for a certain period of time, and the oil is impregnated inside the pores, the fine powder can penetrate into the pores, so it is relatively easy. The porous material can be impregnated with graphite silica powder.
[0009]
And by heating this in a reducing atmosphere, it becomes possible to prevent the oil from being oxidized and to carbonize the oil in the impregnated state. Further, when impregnating the fine powder of graphite silica at the same time, by mixing the fine powder of porcelain together with the graphite silica in the oil, the porcelain clay becomes a binder and the outflow of the graphite silica can be prevented.
[0010]
As the porous material, any material can be used as long as it has a condition that the diameter of the pores is a certain size (size that can be impregnated with edible oil or fine powder such as graphite silica). In particular, in the case of pumice, it is convenient because the diameter of pores varies from relatively large to small, the unit price is low, and the reserve is large.
[0011]
As edible oil for impregnation, rapeseed oil, safflower oil, corn oil, olive oil, peanut oil, cottonseed oil, soybean oil, sesame oil, pork oil, cow oil, palm oil, etc. can be used, but the unit price is particularly low and liquid at room temperature Therefore, rapeseed oil or its waste liquid can be preferably used because it is generally considered that the amount used is large.
[0012]
As a method for incorporating natural graphite silica into this edible edible oil, it is desirable that graphite silica is made into a fine powder having a particle size of 5 microns or less and made into a complete suspension with a stirrer or the like.
[0013]
As the mechanism of the purification ability such as the sterilization function, the chlorine removal function, and the deodorization function in the present invention, the mechanism is the same as the adsorption of bacteria, chlorine, etc. on charcoal or activated carbon, and if the surface ratio becomes large , The effect is also increased.
[0014]
In addition, when the active adsorbent of the present invention uses graphite silica, it becomes an active adsorbent having both fungal growth suppression function and plant growth promoting function, which are inherent capabilities of graphite silica.
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
DETAILED DESCRIPTION OF THE INVENTION
【Example】
Example 1
This example shows the characteristics related to the sterilization of the active adsorbent in which carbon and natural ore graphite silica powders are adhered to the surface of the porous body and the inner surface of the pores.
[0021]
Commercial pumice having a porous structure in oil mixed with 30 g of graphite silica (average particle size: 5 microns) and 7.5 g of porcelain clay (average particle size: 15 microns) as a fine powder for 100 g of rapeseed oil And soaked with oil. Then, oil was cut with a net such as a wire mesh, put into a container, and heated to about 1100 ° C. in a reducing furnace in about 7 hours. After maintaining the state at about 1100 ° C. for about 1 hour, after waiting for natural cooling, the container was taken out to obtain the product of the present invention, which was pumice with carbon, graphite silica, and porcelain adhered to the inner surface of the pores.
[0022]
300 g of the product of the present invention thus obtained was placed in a stainless steel net container and fixed in a beaker containing 800 ml of test water containing bacteria so that the product of the present invention was all immersed in the test water. Place the test water in the beaker at room temperature (25 ° C.) and continue stirring at low speed.
[0023]
The time when the product of the present invention is put into the test water is set to 0 hour, the rotation is stopped every predetermined time, the test water in the beaker is collected, and the sterilized physiological saline (0.85% NaCl aqueous solution) is divided into 4 to 5 stages. ). 1 ml of this diluted test water and 15 ml of standard agar medium (Nissui Pharmaceutical Co., Ltd.) previously dissolved and vapor pressure sterilized were mixed in a sterilized petri dish to prepare a flat plate. After the plate was cultured at 36 ° C. for 24 hours, the number of colonies having about 100 colonies was calculated, and the number of bacteria in 1 ml of test water was calculated. As a comparative example, a similar test was performed using pumice to which carbon or the like was not attached.
[0024]
The time-dependent changes in the number of viable bacteria obtained as a result are shown in Table 1 and FIG .
[0025]
[Table 1]
As can be seen from Table 1 and FIG. 1 , in the product of the present invention, after 2 hours, the number of bacteria decreased rapidly, and the effect was maintained over a long period of time. On the other hand, the pumice of the comparative example shows only a very mild sterilization effect, and the sterilization effect is lost after 24 hours.
Example 2
This example shows the characteristics regarding the sterilization of the active adsorbent produced using rapeseed oil waste oil mixed with fine powder of graphite silica and porcelain as edible oil impregnated into the porous body.
[0026]
Commercial pumice is soaked for a certain period of time in 100 g of used rapeseed oil, mixed with 20 g of graphite silica (average particle size: 5 microns) and 5 g of porcelain clay (average particle size: 15 microns). Impregnated with oil. Then, oil was cut with a net such as a wire mesh, put into a container, and heated to about 1100 ° C. in a reducing furnace in about 7 hours. After maintaining the state at about 1100 ° C. for about 1 hour, after waiting for natural cooling, the container was taken out to obtain the product of the present invention, which was pumice with carbon, graphite silica, and porcelain adhered to the inner surface of the pores.
[0027]
300 g of the product of the present invention thus obtained was placed in a stainless steel net container and fixed in a beaker containing 800 ml of test water containing bacteria so that the product of the present invention was all immersed in the test water. Place the test water in the beaker at room temperature (25 ° C.) and continue stirring at low speed.
[0028]
The time when the product of the present invention is put into the test water is set to 0 hour, the rotation is stopped every predetermined time, the test water in the beaker is collected, and the sterilized physiological saline (0.85% NaCl aqueous solution) is divided into 4 to 5 stages. ). 1 ml of this diluted test water and 15 ml of standard agar medium (Nissui Pharmaceutical Co., Ltd.) previously dissolved and vapor pressure sterilized were mixed in a sterilized petri dish to prepare a flat plate. After the plate was cultured at 36 ° C. for 24 hours, the number of colonies having about 100 colonies was calculated, and the number of bacteria in 1 ml of test water was calculated. As a comparative example, a similar test was performed using pumice to which carbon or the like was not attached.
[0029]
The time-dependent changes in the number of viable bacteria obtained as a result are shown in Table 2 and FIG.
[0030]
[Table 2]
As can be seen from Table 2 and FIG. 2 , in the product of the present invention, the bacteria rapidly decreased after 2 hours, and the effect was maintained for a long time. On the other hand, the pumice of the comparative example shows only a very mild sterilization effect, and the sterilization effect is lost after 24 hours.
Example 3
This example illustrates the characteristics regarding residual chlorine removal efficiency of the porous body surface and pore inner surface mosquitoes Bon and natural ore graphite silica powder the deposited active adsorbent.
[0031]
The above-mentioned two kinds of the present invention products, 180 g each, were dispensed into 500 ml pressure-resistant glass bottles (capacity: about 600 ml), tap water was added, the bottle was fully sealed and stored at 20 ° C. The tap water was added at 0 hour, and 15 ml of water was collected from each pressure-resistant glass bottle every predetermined time, and the residual chlorine concentration was measured by a simple OT (orthotrizine) method. As a comparative example, a similar test was performed using pumice to which carbon or the like was not attached. A 500 ml pressure-resistant glass bottle was sealed with tap water only, and the same test was performed.
[0032]
The changes over time in the residual chlorine concentration obtained as a result are shown in Table 3 and FIG .
[0033]
[Table 3]
As can be seen from Table 3 and FIG. 3 , the product of the present invention (pumice + rapeseed oil) can be removed as long as it is residual chlorine contained in tap water. On the other hand, the pumice of the comparative example cannot remove all residual chlorine even after 24 hours. It can also be seen that the product of the present invention (pumice + rapeseed oil + GS + porcelain clay) has a higher ability to remove residual chlorine than the pumice of the comparative example.
Example 4
This example shows the characteristics relating to the deodorizing effect of the active adsorbent in which carbon or carbon and natural ore graphite silica powder are adhered to the surface of the porous body and the inner surface of the pores.
[0034]
10 g of each of the two kinds of the present invention products of Example 1 and Example 3 were dispensed into 5000 ml Tedlar bags, respectively, and H 2 S standard gas was diluted with nitrogen gas to a concentration of about 80 ppm and sealed. Thereafter, each Tedlar bag was shaken for 30 seconds and allowed to stand at 25 ° C. The time when the gas was sealed was set to 0 hour, gas was sampled from the Tedlar bag every predetermined time, and the H 2 S concentration was measured using a detector tube. As a comparative example, a similar test was performed using pumice to which carbon or the like was not attached. Further, as a blank, only a nitrogen gas having an H 2 S concentration of 80 ppm was sealed in a 5000 ml Tedlar bag, and the same test was performed.
[0035]
The time-dependent changes in H 2 S concentration obtained as a result are shown in Table 4 and FIG .
[0036]
[Table 4]
As can be seen from Table 4 and FIG. 4 , the two types of the present invention have a deodorizing effect in the air. In particular, it can be seen that the deodorizing effect of the present invention product (pumice + rapeseed oil + GS + porcelain clay) is strong and 90% or more of H2S can be removed in one hour.
Example 5
This example shows the characteristics relating to pH exhibited by an active adsorbent in which carbon or a powder of carbon and natural ore graphite silica is adhered to the surface of the porous body and the inner surface of the pores.
[0037]
20 g of each of the present invention products of Example 1 and Example 2 are put into a beaker, 100 ml of distilled water is added thereto, and stirring is continued at a low speed. The pH of the water in the beaker was measured every predetermined time with a pH meter. As a comparative example, a similar test was performed using pumice to which carbon or the like was not attached. Further, only 100 ml of distilled water was put in a beaker and the same test was conducted.
[0038]
The results are shown in Table 5 and FIG .
[0039]
[Table 5]
It can be seen from Table 5 and FIG. 5 that the water treated with the three kinds of the present invention products is weakly alkaline and clears the standard value of drinking water (pH 5.8 to 8.6). .
[0040]
Example 6
This example shows characteristics relating to the growth promoting effect of an active adsorbent in which carbon or a powder of carbon and natural ore graphite silica is adhered to the surface of the porous body and the inner surface of the pores.
[0041]
22.5 g of the present invention product (pumice + rapeseed oil + GS + porcelain) of Example 1 was mixed with 750 cc of tap water in a bulb hydroponics container, and a hyacinth (variety name: Lady Derby) growth test was conducted. As a comparative example, a similar test was performed using pumice to which carbon or the like was not attached.
[0042]
As a result, in the case of using the product of the present invention of Example 1 (pumice + rapeseed oil + GS + porcelain), the root length after 70 days from the start of cultivation is 13 cm on average when using the pumice of the comparative example. In contrast, when the product of the present invention (pumice + rapeseed oil + GS + porcelain) was used, the average was 17 cm. From this result, it was found that the active adsorbent which is the product of the present invention (pumice + rapeseed oil + GS + porcelain clay) has a high growth promoting effect in hydroponics.
[0043]
【The invention's effect】
The active adsorbent of the present invention has the following effects.
[0044]
(1) Since the oil impregnated in the porous body may be waste oil, it is possible to recycle the waste oil, which is economical in terms of cost.
[0045]
(2) Various materials such as coral grains and bricks can be used for the porous body. However, if pumice is used, stable supply is possible because it is relatively inexpensive and has a large amount of reserves. Moreover, since it is lightweight, it is economical also in terms of transportation costs.
[0046]
(3) Since the raw materials used in the present invention are natural components, no by-products such as harmful substances are produced during production.
[0047]
(4) Using the production method of the present invention, various fine powders can be attached to a porous body or the like.
[0048]
(5) The manufacturing process of the present invention is relatively simple and does not require any special technique.
[Brief description of the drawings]
FIG. 1 shows time-dependent changes in the number of viable bacteria in Example 1.
FIG. 2 shows time-dependent changes in the number of viable bacteria in Example 2.
3 shows a change with time in residual chlorine concentration in Example 3. FIG.
FIG. 4 shows the change with time of the hydrogen sulfide concentration in Example 4.
FIG. 5 shows a change with time in pH value in Example 5.
Claims (5)
Priority Applications (1)
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JP19167297A JP3787421B2 (en) | 1997-07-10 | 1997-07-16 | Active adsorbent and method for producing the same |
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JP18559797 | 1997-07-10 | ||
JP9-185597 | 1997-07-10 | ||
JP19167297A JP3787421B2 (en) | 1997-07-10 | 1997-07-16 | Active adsorbent and method for producing the same |
Publications (2)
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JPH1176811A JPH1176811A (en) | 1999-03-23 |
JP3787421B2 true JP3787421B2 (en) | 2006-06-21 |
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JP3296716B2 (en) * | 1996-05-02 | 2002-07-02 | テイエチケー株式会社 | Rolling motion guide device and method of manufacturing moving member of rolling motion guide device |
JP2002121497A (en) * | 2000-10-17 | 2002-04-23 | Keiichi Ogaki | Coating material and method for producing the same |
FR2870753B1 (en) | 2004-05-28 | 2007-04-20 | Camp Jean Pierre | PIERRE PONCE WITH CARBON CONTENT, PROCESS FOR PRODUCING THE SAME AND APPLICATIONS THEREOF |
FR2936960B1 (en) * | 2008-10-13 | 2012-10-05 | Ecopomex S A M | ADSORBENT PRODUCT FOR THE DEPOLLUTION OF HYDROCARBONS, IN PARTICULAR IN WATER PLANTS, AND METHOD OF OBTAINING AND USING THE SAME |
JP2010269295A (en) * | 2009-05-19 | 2010-12-02 | Kyoji Takada | Water ph control only by heat source and natural ore water |
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