JP2003001287A - Floating body and its manufacturing method - Google Patents
Floating body and its manufacturing methodInfo
- Publication number
- JP2003001287A JP2003001287A JP2001193651A JP2001193651A JP2003001287A JP 2003001287 A JP2003001287 A JP 2003001287A JP 2001193651 A JP2001193651 A JP 2001193651A JP 2001193651 A JP2001193651 A JP 2001193651A JP 2003001287 A JP2003001287 A JP 2003001287A
- Authority
- JP
- Japan
- Prior art keywords
- floating
- bacteria
- floating object
- sludge
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、河川、湖に発生す
るアオコや油膜、海に発生する赤潮，油膜等をバクテリ
アによって浄化するために、バクテリアを吸着させる浮
遊物体及びその製造方法に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating substance that adsorbs bacteria in order to cleanse water-bloom and oil films that occur in rivers and lakes, red tides and oil films that occur in the sea, and methods for producing the same.
【０００２】[0002]
【従来の技術】近年、自然環境の破壊が非常な速度で進
行していることが確認されている。自然環境の破壊の一
例として、湖や河川では、生活排水の影響によってアオ
コが発生しているという事実がある。このため、アオコ
の発生した湖や河川では、生物も死滅する程にまで達す
る恐れがある。2. Description of the Related Art In recent years, it has been confirmed that the destruction of the natural environment is progressing at an extremely high speed. One example of the destruction of the natural environment is the fact that water-blooms are generated in lakes and rivers due to the effects of domestic wastewater. For this reason, in the lakes and rivers where the water-blooms occur, it is possible that the organisms may even die.
【０００３】また、湖底や川底には、長年に渡るアオコ
の死骸の沈積によるヘドロが発生している。このような
ヘドロは、湖底や川底全体に広がり、やがてメタンガス
の発生を生じ、死の湖や河川となる態を示しており、こ
の対策に全力を傾けているのが現状である。[0003] In addition, sludge has been generated on the bottom of lakes and rivers due to the deposition of carcasses of water-bloom for many years. Such sludge spreads over the bottom of lakes and rivers, and eventually methane gas is generated, resulting in the death of lakes and rivers, and the current situation is to devote all efforts to this measure.
【０００４】ところで、最近では、河川、湖に発生する
アオコや油膜、海に発生する赤潮，油膜等などをバクテ
リアによって浄化する研究が進んでいる。このような研
究では、アオコ、赤潮、油膜等を、バクテリアによって
ＣＯ2とＨ2 Ｏとに分解して処理する提案がなされてい
る。By the way, recently, studies have been conducted to purify water-blooms and oil films generated in rivers and lakes, red tides and oil films generated in the sea by bacteria. In such studies, it has been proposed that bacteria such as water-bloom, red tide, and oil film be decomposed into CO 2 and H 2 O by a bacterium and treated.
【０００５】[0005]
【発明が解決しようとする課題】アオコなどをバクテリ
アによって浄化するために、バクテリアを水面に浮かせ
るようにする提案としては、長石等を主成分とする自然
石から製造された軽石を採用することが考えられる。[Problems to be Solved by the Invention] As a proposal for allowing bacteria to float on the water surface in order to purify water-bloom and the like with bacteria, pumice stone manufactured from natural stones containing feldspar as a main component is adopted. Conceivable.
【０００６】しかし、軽石は、水面に浮く機能は有する
ものの、基本的には全て水を浸透しないので水の吸収は
ほとんど無く、バクテリアが吸着せず、長期に渡りバク
テリアを吸着できないという問題がある。[0006] However, although pumice has a function of floating on the water surface, it basically does not permeate all the water, so there is almost no absorption of water, and there is a problem that bacteria cannot be adsorbed and bacteria cannot be adsorbed for a long period of time. .
【０００７】それ故に本発明の課題は、湖、河川などの
水面に発生するアオコや油膜、海の水面に発生する赤
潮，油膜等をバクテリアによって分解処理することがで
き、しかも恒久的に無害である浮遊物体及びその製造方
法を提供することにある。Therefore, the object of the present invention is that bacteria such as blue-green algae and oil films that occur on the surface of water in lakes and rivers, red tides and oil films that occur on the surface of the sea can be decomposed by bacteria, and they are permanently harmless. An object is to provide a floating object and a manufacturing method thereof.
【０００８】また、本発明の他の課題は、バクテリアの
活性度が失われた時、もしくはバクテリアの効能がまっ
たく無くなった時に、回収し再処理して再利用すること
も可能な浮遊物体及びその製造方法を提供することにあ
る。Another object of the present invention is to provide a floating object which can be recovered, reprocessed and reused when the activity of the bacterium is lost or when the effect of the bacterium is completely lost. It is to provide a manufacturing method.
【０００９】さらに、本発明の他の課題は、有害なヘド
ロを主原料として利用し、しかも、長期にわたり浮遊
し、万一、沈降したとしても永久的に無害な浮遊物体及
びその製造方法を提供することにある。Further, another object of the present invention is to provide a floating object which utilizes harmful sludge as a main raw material, and which is floating for a long period of time and is harmless permanently even if it settles, and a method for producing the same. To do.
【００１０】[0010]
【課題を解決するための手段】本発明によれば、閉ざさ
れた複数の空洞部を有する浮遊物と、バクテリアを吸着
させるよう前記浮遊物の表面に設けた表面通気層とを含
み、前記浮遊物は、主原料としてのヘドロ粒子に、少な
くとも一種の化合物を添加して焼成したガラス質焼結物
であり、前記表面通気層には、前記バクテリアを吸着し
かつ外部へ通じるよう複数の通気孔が形成されているこ
とを特徴とする浮遊物体が得られる。According to the present invention, a floating substance having a plurality of closed cavity portions and a surface ventilation layer provided on the surface of the floating substance for adsorbing bacteria are provided. The product is a vitreous sintered product obtained by adding at least one compound to sludge particles as a main raw material and firing it, and the surface ventilation layer has a plurality of ventilation holes for adsorbing the bacteria and communicating them to the outside. A floating object is obtained which is characterized in that
【００１１】また、本発明によれば、主原料であるヘド
ロ粒子に少なくとも一種の化合物を添加して焼成するこ
とによってガラス質焼結物を作り、焼成と同時に前記化
合物の気化分圧を利用して前記ガラス質焼結物の内部に
閉ざされたガス空間となる空洞部を形成することによっ
て浮遊物を作り、さらに、前記浮遊物の表面に前記バク
テリアを吸着しかつ外部へ通じるように通気孔を含む表
面通気層を形成することを特徴とする浮遊物体の製造方
法が得られる。Further, according to the present invention, a vitreous sintered product is prepared by adding at least one compound to sludge particles as a main raw material and calcining the mixture, and at the same time as calcining, the partial vaporization pressure of the compound is utilized. To form a suspended material inside the vitreous sintered material that becomes a closed gas space, and further to adsorb the bacteria on the surface of the suspended material and to ventilate it to the outside. A method for manufacturing a floating object, which comprises forming a surface ventilation layer containing
【００１２】[0012]
【作用】本発明の浮遊物体及びその製造方法によれば、
湖、河川や海に沈積したヘドロに数種の添加材としての
化合物を添加して混合し、乾燥した後に焼成することに
よって比重０．９以下の無機質なガラス質焼結物を作
り、焼成と同時に前記化合物の気化分圧を利用して前記
ガラス質焼結物の内部に閉ざされたガス空間となる空洞
部を形成することによって浮遊物体とする。According to the floating object and the method for manufacturing the same of the present invention,
Several kinds of compounds as additives are added to sludge accumulated in lakes, rivers and seas, mixed, dried and fired to make an inorganic glassy sintered product having a specific gravity of 0.9 or less. At the same time, a vaporized partial pressure of the compound is used to form a hollow portion that is a closed gas space inside the glassy sintered material to form a floating object.
【００１３】浮遊物の表面には、０．２ｍｍ〜２ｍｍ以
内で且つ１０μｍ〜５００μｍの通気孔を有する表面通
気層を設けて通気孔にバクテリアを吸着させる。たとえ
ば、湖の水面にバクテリアを吸着させた浮遊物体を浮遊
させることにより、アオコをＣＯ2とＨ2 Ｏとに分解し
て処理する。On the surface of the suspended matter, a surface ventilation layer having a ventilation hole of 0.2 mm to 2 mm and 10 μm to 500 μm is provided to adsorb bacteria to the ventilation hole. For example, by suspending a floating substance in which bacteria are adsorbed on the water surface of a lake, the water-bloom is decomposed into CO 2 and H 2 O for processing.
【００１４】よって、浮遊物体は、バクテリアを水面に
浮遊させ、アオコや油膜などの分解効果を発揮させ、恒
久的に無害で且つ長期に渡り浮遊し、万一沈降したとし
ても永久に無害なものとなる。また、バクテリアの有効
性が低下した時には、これを収集して再利用することが
可能である。Therefore, a floating object is one that causes bacteria to float on the water surface and exerts a decomposing effect on water-bloom, oil film, etc., which is permanently harmless and floats for a long period of time, and is permanently harmless even if it settles. Becomes Also, when the effectiveness of bacteria is reduced, it can be collected and reused.
【００１５】[0015]
【発明の実施の形態】以下、本発明に係る浮遊体の一実
施の形態例を説明する。図１は、一個の浮遊物体の断面
を示している。図２は、図１に示した浮遊物体の一部を
拡大して示している。図３は、図１に示した浮遊物体か
ら表面通気層を取り除いた状態における浮遊物を示して
いる。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a floating body according to the present invention will be described below. FIG. 1 shows a cross section of one floating object. FIG. 2 shows an enlarged part of the floating object shown in FIG. FIG. 3 shows a floating substance in a state where the surface ventilation layer is removed from the floating substance shown in FIG.
【００１６】図１乃至図２を参照して浮遊物体１１は、
浮遊物１３と、この浮遊物１３の表面に設けた表面通気
層２１とを含む。浮遊物１３は、主原料としてのヘドロ
に少なくとも一種の化合物を添加して焼成されたガラス
質焼結物であり、外部の空気や水の流入を遮断するよう
に閉ざされた空間に形成されている複数の空洞部１７を
有している。表面通気層２１は、ヘドロを浮遊物１３の
表面に焼成することによって形成されている複数の通気
孔２３を有している。通気孔２３は、バクテリアを吸着
しかつ外部の空気に通じる部分である。Referring to FIGS. 1 and 2, the floating object 11 is
The floating material 13 and the surface ventilation layer 21 provided on the surface of the floating material 13 are included. The suspended matter 13 is a glassy sintered product obtained by adding at least one compound to sludge as a main raw material, and is formed in a space closed so as to block the inflow of outside air or water. It has a plurality of cavities 17 that are present. The surface ventilation layer 21 has a plurality of ventilation holes 23 formed by baking sludge on the surface of the suspended matter 13. The vent hole 23 is a portion that adsorbs bacteria and communicates with the outside air.
【００１７】ガラス質焼結物である浮遊物１３の真比重
は、２．２〜２．７のセラミックスであり、水に浮遊さ
せる比重が０．９以下である。浮遊物１３の内部に形成
されている空洞部１７は、それぞれが均一、もしくは不
均一なものであり、恒常的に水を吸収しないように閉じ
られているものである。The float 13 which is a glassy sintered material has a true specific gravity of 2.2 to 2.7 and has a specific gravity of 0.9 or less that is floated in water. The hollow portions 17 formed inside the floating material 13 are uniform or non-uniform, and are closed so as not to constantly absorb water.
【００１８】表面通気層２１の通気孔２３にバクテリア
を吸着させた状態で浮遊物体１１を湖、河川、河川の水
面に投下したときには、アオコや油膜，赤潮，油膜など
を、バクテリアがＣＯ2とＨ2 Ｏとに分解する。表面通
気層２１は、バクテリアが生存に有効に活動するに必要
なＯ2 を吸収可能となすように、０．２ｍｍ〜２．０ｍ
ｍの厚み寸法となっており、通気孔２３の孔径寸法がバ
クテリアの吸収に必要な５μｍ〜５００μｍとなってい
る。ようするに、通気孔２３は、バクテリアを吸着する
ために必要な径の孔寸法と厚さ寸法とをもっている。[0018] When that dropped floating objects 11 in a state of being adsorbed bacteria to vent 23 of the surface aeration layer 21 lakes, rivers, the water surface of the river, bloom or oil film, red tides, oil film and the like, bacteria and CO 2 Decomposes into H 2 O. The surface ventilation layer 21 has a thickness of 0.2 mm to 2.0 m so that the bacteria can absorb O 2 necessary for effective activity for survival.
The thickness of the vent holes 23 is 5 μm to 500 μm, which is necessary for absorbing bacteria. In this way, the vent hole 23 has a hole dimension and a thickness dimension that are necessary for adsorbing bacteria.
【００１９】以下、この実施の形態例における浮遊物体
１１の製造方法を説明する。なお、以下の説明では、湖
底に沈積しているヘドロ、即ち、自然界で発生した微生
物等の死骸より発生した公害物質を主原料として作られ
ている浮遊物体１１について説明する。The method for manufacturing the floating object 11 in this embodiment will be described below. In the following description, the sludge deposited on the bottom of the lake, that is, the floating object 11 made of a pollutant generated from a dead body such as a microorganism that naturally occurs in the natural world will be described.
【００２０】浮遊物体の製造方法では、ます、主原料で
あるヘドロ粒子を添加材としての少なくとも一種の化合
物を添加して混合し混合物を作る。そして、混合物を乾
燥した後、焼結することにより、ガラス質焼結物を作
る。焼成時には、化合物はら発生するガスの気化分圧を
利用してガラス質焼結物の内部に複数の空洞部１７を形
成して無機質な浮遊物１３を作る。さらに、浮遊物１３
の表面には、ヘドロ粒子２５を焼成することによって通
気孔２３を含む表面通気層を形成する。In the method for producing a floating object, at least one compound as an additive is added to and mixed with the main raw material sludge particles to form a mixture. Then, the mixture is dried and then sintered to produce a glassy sintered product. At the time of firing, a plurality of cavities 17 are formed inside the vitreous sintered material by utilizing the vaporization partial pressure of the gas generated from the compound to form the inorganic suspended matter 13. Furthermore, floating matter 13
The surface ventilation layer including the ventilation holes 23 is formed on the surface of the by burning the sludge particles 25.
【００２１】このようにして作られた浮遊物体１１は、
無機質のガラス質、石質であるため、バクテリアによっ
てアオコ，赤潮，油膜等をＣＯ2 とＨ2 Ｏとに分解し無
害化処理した後に、浮遊物体１１が湖岸、海岸に打ち上
げられても何等害をなすものでない。また、バクテリア
の効能が無くなった時、もしくは活性度が失われた時に
は、浮遊物体１１を回収した後に、再処理して再利用す
ることも可能である。The floating object 11 made in this way is
Since it is an inorganic vitreous material and stone material, even if the floating object 11 is washed up on the lakeshore or the coast after decomposing the water-bloom, red tide, oil film, etc. into CO 2 and H 2 O by bacteria, it will cause no harm. It does not make up. Further, when the effect of bacteria is lost or the activity is lost, it is also possible to collect the floating object 11 and then reprocess and reuse it.
【００２２】したがって、浮遊物体１１は、バクテリア
を水面に浮遊させアオコなどの分解効果を発揮し、恒久
的に無害で且つ長期に渡り浮遊し、万一沈降したとして
も永久に無害なものとなる。Therefore, the floating object 11 exerts the effect of decomposing bacteria such as water-bloom by suspending bacteria on the water surface, is permanently harmless, and is suspended for a long time, and even if it sinks, it is permanently harmless. .
【００２３】以下に、具体例として、茨城県の湖である
霞ヶ浦の浚渫土を採取した分析成分を表１に示す。As a specific example, Table 1 shows the analytical components obtained from the dredged soil of Kasumigaura, a lake in Ibaraki prefecture.
【００２４】[0024]
【表１】 [Table 1]
【００２５】この表１の分析値からガラス質に付いて綿
密に検討した結果、浮遊物１３の通気度を０に近づける
浮遊物体１１としては、ガラス質を選ぶのが最良と推察
した。ガラス質は、本来、様々な元素及びその化合物を
ドープさせることができるから、その選択度は非常に大
きいので様々なガラス質を作ることは可能である。As a result of careful examination of the glass quality from the analysis values shown in Table 1, it was inferred that the glass quality should be selected as the floating object 11 which brings the air permeability of the floating material 13 close to zero. Since vitreous can be originally doped with various elements and compounds thereof, it is possible to make various vitreous materials because its selectivity is very large.
【００２６】基本材質としてのガラス質の真比重は、多
少の差はあるが２．３〜２．７であり、浮遊させるに
は、空洞部１７の空間率を６５〜６０％以上にする必要
がある。この場合、焼結する物を何に利用するかによっ
て全く違った物性が要求される。The true specific gravity of the vitreous material as the basic material is 2.3 to 2.7, although there are some differences, and it is necessary to set the porosity of the cavity 17 to 65 to 60% or more in order to float. There is. In this case, completely different physical properties are required depending on what the sintered product is used for.
【００２７】ちなみに、建築資材として用いられる場合
に付いては、衝撃値、引張り強度が大きく内部が均一な
物が要求される。しかし、本発明の場合は、飽くまでも
セメント等に混合する副資材とは全く別な考えである。By the way, when it is used as a building material, a material having a large impact value and tensile strength and a uniform inside is required. However, in the case of the present invention, it is a completely different idea from an auxiliary material that is mixed with cement or the like until tired.
【００２８】空洞部１７を均一にして安定化するために
は、一次焼成した後に分粒し、原材料の粒度分布を選定
し、二次焼成することで均一な空洞部１７を得ることは
できるが、ヘドロ粒子の様な場合は、ヘドロ自体も均一
でなく、また、安価な製品を作る場合は、出来る限り簡
単な生産工程を必要とする。In order to make the cavity 17 uniform and stable, it is possible to obtain a uniform cavity 17 by performing primary calcination, then sizing, selecting the particle size distribution of the raw material, and secondary calcination. In the case of sludge particles, the sludge itself is not uniform, and when making an inexpensive product, a simple production process is necessary.
【００２９】バクテリアの生存には、酸素が必要であ
り、浮遊物体１１の表面から０．１ｍｍ〜１ｍｍ以内に
空気の表面通気層２１があり、その内部には浸透を０と
する２重構造層を有することが要求される。Oxygen is required for the survival of bacteria, and there is a surface ventilation layer 21 for air within 0.1 mm to 1 mm from the surface of the floating body 11, and a double structure layer having zero permeation inside. Required to have.
【００３０】したがって、この実施の形態例における浮
遊物体１１では、ヘドロを用いて、比較的簡単に自然破
砕処理ができること、かつ安価なものである必要があ
り、２重特性を持つことが必要となる。一方、浮遊物１
３は、より一層、ガラス質で空気、水を浸透しないこと
が要求される。なお、浮遊物体１１の内部の空洞部１７
は、均一よりむしろ不均一分布が比較的、集合気孔であ
ることが望ましい。Therefore, the floating object 11 in this embodiment needs to be capable of being naturally crushed relatively easily using sludge, inexpensive, and have double characteristics. Become. On the other hand, float 1
No. 3 is further required to be glassy and impermeable to air and water. In addition, the hollow portion 17 inside the floating object 11
Is preferably aggregated pores with a relatively non-uniform distribution rather than uniform.
【００３１】この実施の形態例における浮遊物体１１で
は、表１に示した組成分析の他、焼成物性に対する要因
としてヘドロ粒子の粒度が大きく影響する。また、焼成
のための成型条件もヘドロ粒子の大きさに非常に大きく
影響するので、ヘドロ粒子の粒度は、電子顕微鏡測定の
結果、１μｍ〜３μｍの混合物であった。In the floating object 11 in this embodiment, the particle size of sludge particles has a great influence as a factor for the physical properties of the composition in addition to the composition analysis shown in Table 1. The molding conditions for firing also greatly affect the size of the sludge particles, so the particle size of the sludge particles was a mixture of 1 μm to 3 μm as a result of electron microscope measurement.
【００３２】ヘドロ粒子は、１００℃〜２００℃で乾燥
した後に、粒度５μｍ〜５０μｍの凝集した粒子である
が、粒度は１μｍ〜３μｍと変化はない。ヘドロ粒子を
６００〜７００℃の範囲で乾燥したときには、鉄分は、
ＦｅＯからＦｅ3 Ｏ4へ、Ｆｅ3 Ｏ4からＦｅ2 Ｏ3 へと
酸化されると共に、粒子は、焼結して一部が半焼結体と
なる。焼結した粒子の通気度は、著しく増加する反面、
成型性は極端に悪化することも確認した。この様な物性
を有するヘドロ粒子を単独で焼成した。The sludge particles are aggregated particles having a particle size of 5 μm to 50 μm after being dried at 100 ° C. to 200 ° C., but the particle size does not change from 1 μm to 3 μm. When the sludge particles are dried in the range of 600 to 700 ° C, the iron content is
As the particles are oxidized from FeO to Fe 3 O 4 and from Fe 3 O 4 to Fe 2 O 3 , the particles sinter and become partially semi-sintered. The air permeability of the sintered particles increases remarkably, but
It was also confirmed that the moldability was extremely deteriorated. Sludge particles having such physical properties were fired alone.
【００３３】９５０℃〜１，０００℃焼結時の比重は、
１．５〜１．７であった。吸水性…（完全に吸収し
た）。強度に関しては、(Ａ)１００°〜２００℃の乾燥
分が比較的大であり、(Ｂ)６００℃〜７００℃の乾燥分
は、成型性が悪くクラツクが発生し易いことが明らかと
なった。The specific gravity during sintering at 950 ° C. to 1,000 ° C. is
It was 1.5 to 1.7. Water absorption ... (completely absorbed). Regarding the strength, it was revealed that (A) the dry content at 100 ° to 200 ° C was relatively large, and (B) the dry content at 600 ° C to 700 ° C had poor moldability and was prone to cracking. .
【００３４】１，２００℃で焼成した粒子間焼結による
スケルトン組織は、完成したが通気性をなくすること、
及び表面の完全な溶融は出来なかった。また、空気雰囲
気では、Ｆｅ分が多いため全てＦｅ2 Ｏ3 のヘマタイト
まで進行するので密度が大きくなることも確認した。The skeleton structure formed by the inter-particle sintering fired at 1,200 ° C. was completed, but the air permeability was lost.
And the surface could not be completely melted. It was also confirmed that, in the air atmosphere, since the Fe content is large, all the Fe 2 O 3 progresses to the hematite, so that the density becomes large.
【００３５】以下、浮遊物体１１の具体例を実施例
（１）乃至実施例（４）によって説明する。Specific examples of the floating object 11 will be described below with reference to Examples (1) to (4).
【００３６】実施例（１）
湖底の浚渫土（ヘドロ）を乾燥し、乾燥後の浚渫土１０
０ｇに硼酸（Ｂ2 Ｏ3）７ｇを加えて混合し混合物を作
った。苛性ソーダー１５ｇと苛性カリ５ｇを水１２０ｇ
に溶解した溶液を混合物に加えて十分混練し、押出成型
し１００℃で１時間乾燥した。乾燥後、徐々に７００℃
で加熱後９５０℃の焼成炉に投入し浮遊物１３（ガラス
質焼結物）を得た。Example (1) The dredged soil (sludge) on the bottom of the lake was dried, and the dredged soil after drying 10
7 g of boric acid (B 2 O 3 ) was added to 0 g and mixed to form a mixture. Caustic soda 15g and caustic potash 5g 120g water
The solution dissolved in was added to the mixture, kneaded sufficiently, extruded and dried at 100 ° C. for 1 hour. After drying, gradually 700 ℃
After being heated in, the mixture was put into a firing furnace at 950 ° C. to obtain a floating material 13 (glassy sintered material).
【００３７】このとき、体積は、約５分で２．７５倍に
膨張した。即ち、直径１．５ｍｍ、体積１．７６ｃｍ2
が温度上昇と共に２．１ｍｍに膨張し、体積が４．８４
ｃｍ 2 になった。このように体積は、２．７５倍、重量
は３．５ｇになり、比重３．５／４．８４＝０．７３と
なった。この浮遊物１３は、表面に多数のクレーターを
生ずるが、表面全体がガラス質のためバクテリアの吸着
は少いことを確認した。At this time, the volume is 2.75 times in about 5 minutes.
Inflated. That is, diameter 1.5 mm, volume 1.76 cm2
Expands to 2.1 mm as the temperature rises, and the volume is 4.84.
cm 2Became. In this way, the volume is 2.75 times the weight
Is 3.5 g, and the specific gravity is 3.5 / 4.84 = 0.73.
became. This floating substance 13 has many craters on its surface.
Although it occurs, the entire surface is vitreous, so bacteria are adsorbed.
Confirmed that there are few.
【００３８】この浮遊物１３に浚渫土（ヘドロ）を１０
％硼酸の水溶液に懸垂した混液中に投入し、浮遊物１３
の表面に塗布し、これを８５０℃の炉で加熱した。この
条件で浮遊物１３の表面に不均一ではあるが全面に平均
的に０．１〜０．４ｍｍの表面通気層２１を生成するこ
とができた。この時の軟化点に個々の溶融着時の温度
は、８７０℃であった。10 dredged soil (sludge) is added to the floating material 13.
% Suspended in an aqueous solution of boric acid
It was applied to the surface of and was heated in a furnace at 850 ° C. Under this condition, the surface aeration layer 21 having an average thickness of 0.1 to 0.4 mm could be formed on the entire surface of the suspended matter 13 although it was not uniform. At this time, the softening point was 870 ° C. at the time of melting and welding.
【００３９】実施例（２）
実施例（１）と同じ組成で一次焼成物を同じ様に１０％
硼酸に浚渫土を塗布し９００℃に加熱したが、同じ様に
表面に表面通気層２１を生成した。Example (2) A primary fired product having the same composition as in Example (1) was used in an amount of 10%.
Boric acid was coated with dredged soil and heated to 900 ° C., but a surface ventilation layer 21 was formed on the surface in the same manner.
【００４０】実施例（３）
浚渫土１００ｇに苛性ソーダー５ｇに硼酸７．５ｇを混
合したが膨張係数は２．３倍で比重０．８５，０．９２
であった。少しバラツキはあった。Example (3) 100 g of dredged soil was mixed with 5 g of caustic soda and 7.5 g of boric acid, but the expansion coefficient was 2.3 and the specific gravity was 0.85, 0.92.
Met. There was some variation.
【００４１】この他、ＣａＣＯ3 ，ＭｇＯ，Ａｌ
2 Ｏ3 ，ＮａＯＨの添加を変えて実施したガラス質は、
その混合自由度の幅が広いが、バクテリアは、ｐＨ９．
５以上では生存率が著しく低下するので融点は硼酸又は
硼砂の添加量で変化させることが出来る。なお、二次焼
成では、硼酸又は硼砂は添加しなくてもよく、ガラス層
にヘドロ粒子２５を吸着させればよいので、融点は必ず
下げる必要があるものではない。また、表面ガラス化
度、表面通気層２１の接着強度、アルカリ度、量産時の
融着などによって焼成温度は８５０℃が最もよかった。In addition, CaCO 3 , MgO, Al
The vitreous material that was carried out by changing the addition of 2 O 3 and NaOH was
Although the degree of freedom in mixing is wide, bacteria have a pH of 9.
If it is 5 or more, the survival rate is remarkably reduced, so the melting point can be changed by the addition amount of boric acid or borax. In the secondary firing, it is not necessary to add boric acid or borax, and the sludge particles 25 may be adsorbed to the glass layer, so the melting point does not necessarily need to be lowered. The best firing temperature was 850 ° C., depending on the degree of vitrification on the surface, the adhesive strength of the surface ventilation layer 21, the alkalinity, and the fusion during mass production.
【００４２】実施例（４）
ヘドロ１００部に対して苛性ソーダー１５部を混合し硼
酸は０とした。この時、混合物を７００℃で乾燥したも
のを８００℃のロータリー炉に投入し１，０００℃〜出
口１，３００℃の連続加熱を行った。焼成物の比重は、
０．６〜０．８と比較的バラツキはあったが表面は完全
にガラス化し、同時に強固な浮遊物１３を得ることがで
き、これに２重層の焼成を行い同じ様に目的を達成し
た。Example (4) 15 parts of caustic soda was mixed with 100 parts of sludge to make boric acid 0. At this time, the mixture dried at 700 ° C. was put into a rotary furnace at 800 ° C. and continuously heated at 1,000 ° C. to 1,300 ° C. at the outlet. The specific gravity of the baked product is
Although there was a relative variation of 0.6 to 0.8, the surface was completely vitrified and at the same time a strong suspended material 13 could be obtained, and a double layer was fired on this to achieve the same purpose.
【００４３】[0043]
【発明の効果】以上説明したように、本発明に係る浮遊
物体及びその製造方法によれば、自然界で発生した微生
物等の死骸より発生した公害物質であるヘドロを主原料
とする浮遊物とし、浮遊物の表面に表面通気層を持つ２
層構造を有する浮遊物体としので、河川、湖に発生する
アオコや油膜、海に発生する赤潮，油膜等などをバクテ
リアによって効率よく浄化することができる。As described above, according to the floating object and the method for producing the same according to the present invention, a floating material containing sludge, which is a pollutant generated from dead bodies such as microorganisms generated in nature, as a main raw material, 2 with a surface ventilation layer on the surface of the floating material
Since it is a floating object having a layered structure, it is possible to efficiently purify water-bloom and oil slicks that occur in rivers and lakes, red tides and oil slicks that occur in the sea, etc. by bacteria.
【００４４】また、バクテリアが生存に有効に活動する
に必要なＯ2 を吸収可能な厚さ寸法（０．２〜２ｍｍ）
の表面通気層と，その通気孔の大きさがバクテリアの吸
収に必要な５μ〜５００μとしたので、バクテリアを吸
収させて浮かせ、アオコ，赤潮，油膜等をＣＯ2 とＨ2
Ｏとに分解して無害化処理することができる。Also, the thickness dimension (0.2 to 2 mm) capable of absorbing O 2 required for bacteria to effectively act for survival.
And surface aeration layer, since the size of the vent was 5μ~500μ necessary for the absorption of bacteria, float to absorb bacteria, blue-green algae, red tides, an oil film or the like CO 2 and H 2
It can be decomposed into O and detoxified.
【００４５】また、処理後は、無機質のガラス質、石質
であるため湖岸、海岸に打ち上げられても何等害をなす
ものでなく、バクテリアの効能が無くなった時、もしく
は活性度が失われた時には、回収し再処理して再利用す
ることも可能となる。Further, after the treatment, since it is an inorganic glassy material and a stoney material, it is not harmful even if it is washed up on the shore or the shore, and when the bacteria are no longer effective or the activity is lost. At times, it is possible to collect, reprocess, and reuse.
【００４６】本発明に係る浮遊物体及びその製造方法に
よれば、大量のヘドロ処理と、湖，河川のアオコ、海の
赤潮、水上の油分等の処理を達成した後に、比較的簡単
に自然破砕処理ができ、かつ経済性にすぐれたものとな
る。According to the floating object and the method for producing the same according to the present invention, it is relatively easy to crush naturally after achieving a large amount of sludge treatment and treatment of lakes, rivers of water-bloom, red tide of the sea, oil on the water, etc. It can be processed and is highly economical.
【図１】本発明に係る浮遊物体の一実施の形態例を示す
断面図である。FIG. 1 is a sectional view showing an embodiment of a floating object according to the present invention.
【図２】図１に示した浮遊物体の一部を拡大して示した
断面図である。FIG. 2 is a cross-sectional view showing an enlarged part of the floating object shown in FIG.
【図３】図１に示した浮遊物体から表面通気層を取り除
いた浮遊物を示した断面図である。FIG. 3 is a cross-sectional view showing a floating substance obtained by removing the surface ventilation layer from the floating substance shown in FIG.
１１ 浮遊物体 １３ 浮遊物 １７ 空洞部 ２１ 表面通気層 ２３ 通気孔 11 floating objects 13 suspended matter 17 Cavity 21 Surface ventilation layer 23 Vents
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小林 義信 茨城県西茨城郡岩間町下郷4543番地10 ク リエイト・リソース株式会社内 (72)発明者 石倉 修 茨城県西茨城郡岩間町下郷4543番地10 ク リエイト・リソース株式会社内 Ｆターム(参考） 4B033 NA12 NA19 NB25 NB62 ND04 4B065 AA01 BC05 BC45 CA54 4D003 AA06 BA07 EA15 EA19 EA22 EA24 EA28 EA38 FA01 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yoshinobu Kobayashi 1043, 4543 Shimogo, Iwama-cho, Nishi-Ibaraki-gun, Ibaraki Prefecture Within REIT RESOURCE Co., Ltd. (72) Inventor Osamu Ishikura 1043, 4543 Shimogo, Iwama-cho, Nishi-Ibaraki-gun, Ibaraki Prefecture Within REIT RESOURCE Co., Ltd. F term (reference) 4B033 NA12 NA19 NB25 NB62 ND04 4B065 AA01 BC05 BC45 CA54 4D003 AA06 BA07 EA15 EA19 EA22 EA24 EA28 EA38 FA01
Claims (4)
と、バクテリアを吸着させるよう前記浮遊物の表面に設
けた表面通気層とを含み、前記浮遊物は、主原料として
のヘドロ粒子に、少なくとも一種の化合物を添加して焼
成したガラス質焼結物であり、前記表面通気層には、前
記バクテリアを吸着しかつ外部へ通じるよう複数の通気
孔が形成されていることを特徴とする浮遊物体。1. A suspension comprising a suspended matter having a plurality of closed cavities, and a surface aeration layer provided on the surface of the suspended matter to adsorb bacteria, wherein the suspended matter is converted into sludge particles as a main raw material. And a glassy sintered product obtained by adding at least one compound and firing, wherein the surface aeration layer is formed with a plurality of air holes for adsorbing the bacteria and communicating with the outside. Floating object.
浮遊物の比重が０．９以下であり、前記表面通気層の厚
み寸法が０．２ｍｍ〜１．０ｍｍの範囲であり、前記通
気孔の孔径が５μｍ〜５００μｍの範囲であることを特
徴とする浮遊物体。2. The floating object according to claim 1, wherein the specific gravity of the floating material is 0.9 or less, and the thickness dimension of the surface ventilation layer is in the range of 0.2 mm to 1.0 mm. The object having a diameter of 5 μm to 500 μm is a floating object.
種の化合物を添加して焼成することによってガラス質焼
結物を作り、焼成と同時に前記化合物の気化分圧を利用
して前記ガラス質焼結物の内部に閉ざされたガス空間と
なる空洞部を形成することによって浮遊物を作り、さら
に、前記浮遊物の表面に前記バクテリアを吸着しかつ外
部へ通じるように通気孔を含む表面通気層を形成するこ
とを特徴とする浮遊物体の製造方法。3. A vitreous sinter is produced by adding at least one compound to sludge particles, which is a main raw material, and firing the mixture, and at the same time as firing, the vaporizing partial pressure of the compound is utilized to effect the vitreous sintering. A floating substance is formed by forming a cavity that becomes a closed gas space inside the object, and further, a surface ventilation layer including a ventilation hole so that the bacteria are adsorbed on the surface of the floating substance and communicated to the outside. A method of manufacturing a floating object, the method comprising: forming.
いて、前記ガラス質焼結物の軟化点を７００℃以上と
し、融点１，１００℃以下とし、前記浮遊物の比重を
０．９以下として、前記浮遊物の表面に０．２ｍｍ〜
１．０ｍｍ以下の範囲で前記表面通気層を形成し、前記
通気孔の孔径を５μｍ〜５００μｍの範囲となすことを
特徴とする浮遊物体の製造方法。4. The method for producing a floating object according to claim 3, wherein the softening point of the glassy sintered material is 700 ° C. or higher, the melting point is 1,100 ° C. or lower, and the specific gravity of the floating material is 0.9 or lower. As a result, 0.2 mm
A method for producing a floating object, wherein the surface ventilation layer is formed in a range of 1.0 mm or less, and the pore diameter of the ventilation hole is set in a range of 5 μm to 500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001193651A JP2003001287A (en) | 2001-06-26 | 2001-06-26 | Floating body and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001193651A JP2003001287A (en) | 2001-06-26 | 2001-06-26 | Floating body and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003001287A true JP2003001287A (en) | 2003-01-07 |
Family
ID=19031896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001193651A Pending JP2003001287A (en) | 2001-06-26 | 2001-06-26 | Floating body and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003001287A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012004893A1 (en) * | 2010-07-09 | 2012-01-12 | 小川 弘 | Wastewater treatment device |
| CN105413311A (en) * | 2015-12-31 | 2016-03-23 | 德成泰科（天津）环境科技有限公司 | Grid type active glass filter material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150893A (en) * | 1984-01-18 | 1985-08-08 | Sumitomo Metal Mining Co Ltd | Microorganism carrier |
| JPH01168397A (en) * | 1987-12-22 | 1989-07-03 | Onoda Autoclaved Light Weight Concrete Co Ltd | Manufacture of purifying material |
| JPH0240290A (en) * | 1988-07-29 | 1990-02-09 | Ngk Insulators Ltd | Porous ceramic carrier for fixing microorganism |
| JPH08157276A (en) * | 1994-10-06 | 1996-06-18 | Mitsubishi Heavy Ind Ltd | Porous ceramics from lake and pond bottom mud and treatment of lake and pond bottom mud |
| JPH0957291A (en) * | 1995-08-28 | 1997-03-04 | Nippon Tokushu Pipe Hanbai Kk | Microorganism coating filter medium and its production, and liquid treatment using the same |
-
2001
- 2001-06-26 JP JP2001193651A patent/JP2003001287A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150893A (en) * | 1984-01-18 | 1985-08-08 | Sumitomo Metal Mining Co Ltd | Microorganism carrier |
| JPH01168397A (en) * | 1987-12-22 | 1989-07-03 | Onoda Autoclaved Light Weight Concrete Co Ltd | Manufacture of purifying material |
| JPH0240290A (en) * | 1988-07-29 | 1990-02-09 | Ngk Insulators Ltd | Porous ceramic carrier for fixing microorganism |
| JPH08157276A (en) * | 1994-10-06 | 1996-06-18 | Mitsubishi Heavy Ind Ltd | Porous ceramics from lake and pond bottom mud and treatment of lake and pond bottom mud |
| JPH0957291A (en) * | 1995-08-28 | 1997-03-04 | Nippon Tokushu Pipe Hanbai Kk | Microorganism coating filter medium and its production, and liquid treatment using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012004893A1 (en) * | 2010-07-09 | 2012-01-12 | 小川 弘 | Wastewater treatment device |
| CN105413311A (en) * | 2015-12-31 | 2016-03-23 | 德成泰科（天津）环境科技有限公司 | Grid type active glass filter material |
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