JPH0155916B2 - - Google Patents
Info
- Publication number
- JPH0155916B2 JPH0155916B2 JP6294185A JP6294185A JPH0155916B2 JP H0155916 B2 JPH0155916 B2 JP H0155916B2 JP 6294185 A JP6294185 A JP 6294185A JP 6294185 A JP6294185 A JP 6294185A JP H0155916 B2 JPH0155916 B2 JP H0155916B2
- Authority
- JP
- Japan
- Prior art keywords
- immobilization carrier
- diameter
- dimensional
- bacteria
- upper layer
- 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
Links
- 239000011148 porous material Substances 0.000 claims description 17
- 244000005700 microbiome Species 0.000 claims description 8
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 4
- 230000004151 fermentation Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 230000010065 bacterial adhesion Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は廃水処理装置内の微生物、即ち嫌気性
菌を固定化する固定化担体に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an immobilization carrier for immobilizing microorganisms, ie, anaerobic bacteria, in a wastewater treatment device.
（従来の技術及び発明が解決しようとする問題
点）
嫌気性菌の固定化担体は、シヨツクロードやPH
の変化に対して安定である。飢餓への抵抗性が強
い。低濃度廃水でwash outが防止できる。等の
利点を有する。(Problems to be solved by the prior art and the invention) The immobilization carrier for anaerobic bacteria is
It is stable against changes in . Strong resistance to starvation. Wash out can be prevented with low concentration wastewater. It has the following advantages.
ところで、従来、此種の固定化担体は特公昭59
−41764号公報（第５図）で見られるように大量
の粒径濾材を粒径を均一に揃えて各濾床２００を
形成し、各濾床２００を積層して上層から下層に
行くに従つて濾床２００を密にするもの（以下前
者）やハニカム等の多孔性固体で形成したもの
（以下後者）である。 By the way, conventionally, this type of immobilization carrier was
As seen in Publication No. 41764 (Figure 5), each filter bed 200 is formed by making a large amount of particle size filter medium uniform in particle size, and each filter bed 200 is stacked one on top of the other from the upper layer to the lower layer. The filter bed 200 can be made dense (hereinafter referred to as the former), or made of porous solid such as honeycomb (hereinafter referred to as the latter).
ところが、斯様な粒状物で濾床を形成した前者
は逆洗浄操作の際、沈降速度の小さな細かい粒状
物が上層に、沈降速度の大きな粗い粒状物は下層
に沈積する為、下向流濾過を行なうと上層の細か
い濾床が難分解性の懸濁固形物で塞がれ、濾過効
率が著しく低下する大きな問題を有する。 However, in the case of the former, in which a filter bed is formed of such granular materials, during backwashing operation, fine granules with a low sedimentation rate settle in the upper layer, and coarse granules with a high sedimentation rate in the lower layer, resulting in downward flow filtration. If this is done, the fine filter bed in the upper layer becomes clogged with hard-to-decompose suspended solids, resulting in a major problem in that the filtration efficiency is significantly reduced.
一方後者は固定化担体内において廃水の流れが
層流となつて速かに流れる為、微生物（菌）との
接触が少く発酵の進行が遅い問題を有する。 On the other hand, the latter has the problem that since the wastewater flows rapidly in a laminar flow within the immobilization carrier, there is little contact with microorganisms (bacteria) and the progress of fermentation is slow.
発明が解決しようとする問題点は、廃水中に含
まれる難分解性の懸濁物による濾床の閉塞防止と
菌体に触れる機会を増やし発酵の進行を効率よく
行わせることにより廃水処理を速かに行うことが
できる微生物固定化担体を供することにある。 The problems that the invention aims to solve are to speed up wastewater treatment by preventing blockage of the filter bed due to persistent suspended matter contained in wastewater, increasing opportunities for contact with bacterial cells, and allowing fermentation to progress efficiently. The object of the present invention is to provide a microorganism immobilization carrier that can be used to immobilize microorganisms.
（問題点を解決する為の手段）
上記問題点を解決する為に講じた技術的手段
は、２次元或いは３次元の連通状多孔を有する多
孔体で固定化担体本体を形成し、該連通状多孔径
を上層から下層に行くに従つて小さくしたことで
ある。(Means for solving the problem) The technical means taken to solve the above problem is to form the immobilization carrier main body with a porous body having two-dimensional or three-dimensional continuous pores, and to The pore diameter is made smaller from the upper layer to the lower layer.
（作用）
本発明の技術的手段による作用は、難分解性の
固形分の粒径に応じた孔径の連通状多孔でその懸
濁固形物を捕捉させる。(Function) The effect of the technical means of the present invention is to trap suspended solids in continuous pores whose pore diameter corresponds to the particle size of the hard-to-decompose solids.
（発明の効果）
本発明は以上のように２次元或いは３次元の連
通状多孔を有する多孔体で固定化担体本体を形成
し、該連通状多孔径を上層から下層に行くに従つ
て小さくしたので、下記の利点がある。(Effects of the Invention) As described above, the present invention forms the immobilization carrier body with a porous body having two-dimensional or three-dimensional continuous pores, and the diameter of the continuous pores is made smaller from the upper layer to the lower layer. Therefore, it has the following advantages.
難分解性の懸濁固形物を、その粒径に応じた
孔径の連通状多孔で大きい順に順次捕捉できる
から、上層の濾床が目詰りを起すことがなく且
つ廃水の流れが乱流となるから微生物との接触
が長く発酵の進行が早い。故に廃水の処理効率
が高い。 Difficult to decompose suspended solids can be captured sequentially in descending order of size through continuous pores with pore sizes that correspond to the particle size, so the upper filter bed does not become clogged and the flow of wastewater becomes turbulent. Since the contact with microorganisms is long, fermentation progresses quickly. Therefore, wastewater treatment efficiency is high.
粒状物を用いていないから、逆洗浄操作時に
密な粒状物が上層部分に溜る心配なく、常時一
定した懸濁固形物の捕捉効率を維持できる。 Since no granules are used, there is no need to worry about dense granules accumulating in the upper layer during backwashing operations, and a constant suspended solids trapping efficiency can be maintained at all times.
（実施例）
本発明は多孔体１で形成した固定化担体本体Ａ
内の２次元或いは３次元の連通状多孔２径を、上
層から下層に行くに従つて小さくしたものであ
る。(Example) The present invention provides an immobilization carrier body A formed of a porous body 1.
The two diameters of two-dimensional or three-dimensional continuous pores within the layer are made smaller from the upper layer to the lower layer.
多孔体１は、線径0.1mm乃至数mmの線条３を２
次元或いは３次元の連通状多孔２を有するように
フオーム化したもので、所定の大きさに形作つて
固定化担体本体Ａを構成する。 The porous body 1 has two wires 3 with a wire diameter of 0.1 mm to several mm.
It is formed into a form having dimensional or three-dimensional communicating pores 2, and is formed into a predetermined size to constitute the immobilization carrier main body A.
固定化担体本体Ａは、数層に分割形成し、それ
を多段状に積層して構成するか或いは上記数層を
一体成形することによつて構成する。 The immobilization carrier main body A is formed by dividing into several layers and stacking them in a multi-tiered manner, or by integrally molding the above-mentioned several layers.
固定化担体本体Ａを形作る線条３はスポンジ細
線、プラスチツク細線等の有機細線、又はアルミ
ナ、コージエライト、ムライト、陶磁器等の無機
細線である。 The filaments 3 forming the immobilization carrier main body A are organic fine wires such as sponge fine wires and plastic fine wires, or inorganic fine wires such as alumina, cordierite, mullite, and ceramic wires.
連通状多孔２は、固定化担体本体Ａ内の通過す
る流路であり、上層から下層に行くに従つて数
1000μｍから数μｍの範囲で徐々に漸減するよう
に開孔する。 The communicating pores 2 are channels through which the immobilization carrier main body A passes, and the number increases from the upper layer to the lower layer.
Open the holes so that they gradually decrease in size from 1000 μm to several μm.
而して、斯る本発明固定化担体は、上層部分か
ら開孔径に応じた難分解性の懸濁物を順次大きい
順に捕捉すると共に有機成分を、菌の働きで発酵
させる。この時、生成ガスの上昇によつて捕捉さ
れた懸濁固形物は上記連通状多孔２内において揺
動するからその連通状多孔２内の閉塞は緩和され
る。 Thus, the immobilization carrier of the present invention traps recalcitrant suspended matter in order of size according to the opening diameter from the upper layer, and ferments the organic components by the action of bacteria. At this time, the suspended solids captured by the rise of the generated gas oscillate within the communicating pores 2, so that the blockage in the communicating pores 2 is alleviated.
尚、発酵採取したメタンガスや不活性ガスなど
を内部に流すか或いは液に脈動を起させて固形物
の揺動を促進し、閉塞をより一層防止するように
しても良い。 Incidentally, methane gas, inert gas, etc. collected by fermentation may be flowed into the interior, or the liquid may be pulsated to promote the shaking of the solids to further prevent clogging.
また、本発明固定化担体は図示するように担体
の下流側に2μｍφ以下の微細孔を有する分離膜
４を載置して使用に供する。又この膜に加えて
10-2μｍ以下の微細孔を有する２次分離膜５を載
置して使用に供することもできる。 Further, the immobilized carrier of the present invention is used by placing a separation membrane 4 having micropores of 2 μm or less on the downstream side of the carrier, as shown in the figure. In addition to this membrane
A secondary separation membrane 5 having micropores of 10 -2 μm or less can also be mounted and used.
尚、図には平膜タイプの分離膜を記している
が、膜の形状およびその設置方法は図にこだわる
ものではなく、チユーブ状分離膜も使用可能であ
る。 Although the drawing shows a flat membrane type separation membrane, the shape of the membrane and its installation method are not limited to those shown in the drawing, and a tube-shaped separation membrane can also be used.
ちなみに、本発明固定化担体は、第２図に示す
ように末焼成の線状物を切断後焼成したり或いは
焼成後その線状物を切断して数層の短線状焼結体
１００を作り、これに泥漿１０１で付着せしめる
と共に余分な泥漿１０１を排除した後これを所定
形状の製造型１０２内に個別に充填し、再度焼成
したりして成形し、また、有機細線で形成されて
いる場合には多段状に分割し、その数層ごとにキ
ヤステイングして成形する等所望の方法を用い
る。 Incidentally, as shown in FIG. 2, the immobilization carrier of the present invention can be produced by cutting a partially fired linear object and then firing it, or by cutting the linear object after firing to make several layers of short linear sintered bodies 100. After adhering to this with slurry 101 and removing the excess slurry 101, it is individually filled into a manufacturing mold 102 having a predetermined shape, and then baked and molded again. In such a case, a desired method such as dividing into multiple stages and casting and molding each several layers is used.
また、第３図に示すように固定化担体本体Ａを
形作るその線条３に、100μｍ以下径の通孔６を
多数開孔して菌付着面積を拡大させても良い。 Further, as shown in FIG. 3, a large number of through holes 6 having a diameter of 100 μm or less may be opened in the filament 3 forming the immobilization carrier main body A to enlarge the bacterial adhesion area.
通孔６は菌付着面積を拡大させて菌を高濃度に
保持する為のもので、100μｍ乃至1μｍの孔径で
線条３の全域に渉り、多数開孔する。 The through holes 6 are for expanding the bacteria adhesion area and retaining the bacteria at a high concentration, and are formed in large numbers over the entire area of the filament 3 with a hole diameter of 100 μm to 1 μm.
尚、通孔６径は菌径が1μｍであるから、その
通孔６内に菌が付着できる程度として1μｍφを
最低限とし、線条３の強度が著しく低下するのを
さける為、最大孔径として100μｍとするが、基
質拡散の目的の為に、1μｍφ以下の通孔６を設
けて線条３に付着した微生物（菌）の活性化を図
るように配慮しても良い。 In addition, since the diameter of the through hole 6 is 1 μm for bacteria, the minimum hole diameter is 1 μm to allow bacteria to adhere to the inside of the through hole 6, and the maximum hole diameter is set to avoid a significant decrease in the strength of the filament 3. Although the diameter is 100 μm, for the purpose of substrate diffusion, consideration may be given to providing a through hole 6 with a diameter of 1 μm or less to activate microorganisms (bacteria) attached to the filament 3.
ちなみに、この実施例の場合、直径0.5mmの稠
密なアルミナ質の線条３を用いて空隙率76％の多
孔体１を形成して、これを固定化担体本体Ａとし
て、多孔度が25％となるように、平均10μｍφ径
の通孔６を開孔した実験によると25000m2／m3ま
で菌付着面積が拡大した。これによると、通孔６
を開孔しなかつた同固定化担体本体Ａ（菌付着表
面積：1900m2／m3）に比べて約14倍の付着表面積
を得ることが立証される。 Incidentally, in the case of this example, a porous body 1 with a porosity of 76% is formed using dense alumina filaments 3 with a diameter of 0.5 mm, and this is used as the immobilization carrier body A, with a porosity of 25%. According to an experiment in which through-holes 6 with an average diameter of 10 μmφ were opened, the bacterial adhesion area expanded to 25000 m 2 /m 3 . According to this, through hole 6
It is verified that the adhesion surface area is approximately 14 times larger than that of the same immobilization carrier body A without openings (bacteria adhesion surface area: 1900 m 2 /m 3 ).
尚、この実験例は一例であり、線条３径、空隙
率、通孔６の孔径、その通孔６の多孔は上記実験
例の数値には限定されないが、多孔度は50％を越
えると固定化担体本体Ａの強度が著しく低下する
から好ましくなく、それ以下ならば何％でも良
い。この実施例の場合、担体Ａを形成するのに用
いた線条３の直径をR1φ、これを用いた多孔体の
空隙率をｘ（100x％）、線条３の内部に開孔した
通孔６の孔径をR2φ、これの多孔度をｙ（100y％）
とすると
菌付着表面積＝４（１−ｘ）｛１−ｙ／R1＋ｙ／R2｝
となる。 This experimental example is just an example, and the diameter of the filament 3, the porosity, the diameter of the through hole 6, and the porosity of the through hole 6 are not limited to the values in the experimental example above, but if the porosity exceeds 50%, This is not preferable because the strength of the immobilization carrier main body A is significantly reduced, and any percentage may be used as long as it is less than that. In the case of this example, the diameter of the filament 3 used to form carrier A was R 1 φ, the porosity of the porous body using this was x (100x%), and the pores were opened inside the filament 3. The diameter of the through hole 6 is R 2 φ, and its porosity is y (100y%)
Then, the bacterial adhesion surface area=4(1-x) {1-y/R 1 +y/R 2 }.
図面は本発明微生物固定化担体の実施例を示
し、第１図は正面図で一部拡大して示す、第２図
は製造工程図、第３図は他の実施例の正面図で一
部拡大して示す、第４図は使用状態図、第５図は
従来例の縦断面図である。
尚図中、Ａ：固定化担体本体、１：多孔体、
２：連通状多孔、３：線条。
The drawings show an example of the microorganism immobilization carrier of the present invention, FIG. 1 is a front view with a partially enlarged view, FIG. 2 is a manufacturing process diagram, and FIG. 3 is a front view of another example with a partially enlarged view. FIG. 4 is an enlarged view of the device in use, and FIG. 5 is a vertical cross-sectional view of a conventional example. In the figure, A: immobilization carrier body, 1: porous body,
2: continuous pores, 3: striations.
Claims (1)
孔体で固定化担体本体を形成し、該連通状多孔径
を上層から下層に行くに従つて小さくしたことを
特徴とする廃水処理装置用の微生物固定化担体。1. A microorganism for wastewater treatment equipment, characterized in that the immobilization carrier body is formed of a porous body having two-dimensional or three-dimensional continuous pores, and the diameter of the continuous pores decreases from the upper layer to the lower layer. Immobilization carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60062941A JPS61220790A (en) | 1985-03-26 | 1985-03-26 | Microbe-immobilizing carrier for waste water treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60062941A JPS61220790A (en) | 1985-03-26 | 1985-03-26 | Microbe-immobilizing carrier for waste water treating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61220790A JPS61220790A (en) | 1986-10-01 |
| JPH0155916B2 true JPH0155916B2 (en) | 1989-11-28 |
Family
ID=13214828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60062941A Granted JPS61220790A (en) | 1985-03-26 | 1985-03-26 | Microbe-immobilizing carrier for waste water treating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61220790A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341488A (en) * | 2017-12-20 | 2018-07-31 | 中山市和智电子科技有限公司 | A kind of biological suspended packing for administering black and odorous water |
-
1985
- 1985-03-26 JP JP60062941A patent/JPS61220790A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61220790A (en) | 1986-10-01 |
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