JPH0372996A - Water purifying of closed water system and water purifying process - Google Patents
Water purifying of closed water system and water purifying processInfo
- Publication number
- JPH0372996A JPH0372996A JP1208394A JP20839489A JPH0372996A JP H0372996 A JPH0372996 A JP H0372996A JP 1208394 A JP1208394 A JP 1208394A JP 20839489 A JP20839489 A JP 20839489A JP H0372996 A JPH0372996 A JP H0372996A
- Authority
- JP
- Japan
- Prior art keywords
- water
- biocatalyst
- carrier
- closed
- gel
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims description 12
- 238000000746 purification Methods 0.000 claims abstract description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 9
- 239000000017 hydrogel Substances 0.000 claims description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 9
- 238000009372 pisciculture Methods 0.000 claims 1
- 239000000499 gel Substances 0.000 abstract description 15
- 102000004190 Enzymes Human genes 0.000 abstract description 10
- 108090000790 Enzymes Proteins 0.000 abstract description 10
- 239000011942 biocatalyst Substances 0.000 abstract description 9
- 241000251468 Actinopterygii Species 0.000 abstract description 8
- 239000010802 sludge Substances 0.000 abstract description 3
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 abstract description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001817 Agar Polymers 0.000 abstract description 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract description 2
- 241000589516 Pseudomonas Species 0.000 abstract description 2
- 239000008272 agar Substances 0.000 abstract description 2
- 229940072056 alginate Drugs 0.000 abstract description 2
- 235000010443 alginic acid Nutrition 0.000 abstract description 2
- 229920000615 alginic acid Polymers 0.000 abstract description 2
- 229920001223 polyethylene glycol Polymers 0.000 abstract description 2
- 241000108664 Nitrobacteria Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 241000252229 Carassius auratus Species 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 241000195493 Cryptophyta Species 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000005273 aeration Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 230000003100 immobilizing effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 229920001059 synthetic polymer Polymers 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 240000007124 Brassica oleracea Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000679 carrageenan Substances 0.000 description 1
- 235000010418 carrageenan Nutrition 0.000 description 1
- 229920001525 carrageenan Polymers 0.000 description 1
- 229940113118 carrageenan Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 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
Abstract
Description
【発明の詳細な説明】
人、産業上の利用分野
本発明は生体触媒固定化含水ゲルからなる閉鎖水系用の
水質浄化剤およびそれを用いた水質浄化方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention: Field of the Invention The present invention relates to a water purification agent for a closed water system comprising a biocatalyst-immobilized hydrogel and a water purification method using the same.
さらに詳しくは鑑賞急用水槽・魚介類養殖用水槽・生は
簀等の閉鎖水系Ｑ水質浄化剤および水質浄化方法に関す
る。More specifically, the present invention relates to a Q water purifier and a water purification method for closed water systems such as emergency aquariums, aquariums for fish and shellfish cultivation, and live cages.
鑑賞急用水槽・魚介類養殖用水槽・生は簀等は最期間放
置しておくと１食べ残しの餌や鑑賞点、魚介類の排泄物
によシ、水が濁ｂ１藻類が異層発生する。渣た。排泄物
にようアンモニアが生威し。If aquariums for aquariums, fish and shellfish culture tanks, and raw cages are left unattended for a long period of time, the water will become cloudy due to uneaten food, viewing points, and fish excrement, and different layers of algae will develop. . It was a residue. Ammonia is present in excrement.
鑑賞魚、魚介類に悪影響を及ぼす。It has a negative impact on ornamental fish and seafood.
そのため、活性炭・セラミックス等の吸着材を用いて水
を浄化する方法％筐た硝化菌や好気性バクテリア等の菌
体な含む水を投入する方法が知られている。Therefore, a method is known in which water is purified using an adsorbent such as activated carbon or ceramics, and a method in which water containing microorganisms such as nitrifying bacteria and aerobic bacteria is introduced into the water.
Ｃ０発明が解決しようとする課題
活性炭・セラミックス等の吸着材を用いて水を浄化する
方法は、その吸着材の吸着能力には限界があるため浄化
効果は長続きしない。また硝化菌や好気性バクテリア等
の菌体な含む水を投入する方法は外観上菌体濃度を上げ
ることができず効果は不充分であった。Problems to be Solved by the C0 Invention Methods for purifying water using adsorbents such as activated carbon and ceramics do not provide long-lasting purification effects because the adsorbent has a limited adsorption capacity. In addition, the method of adding water containing microbial cells such as nitrifying bacteria and aerobic bacteria was apparently unable to increase the microbial cell concentration and was insufficiently effective.
本発明は生体触媒固定化含水ゲルを用いることにより１
生体触媒の効果を最大限に生かして容易に水の浄化が行
なわれ、その効果は半永久的に続くため、煩雑な水の交
換を不要とするものである。The present invention achieves 1 by using a biocatalyst-immobilized hydrogel.
Water is easily purified by maximizing the effect of the biocatalyst, and the effect lasts semi-permanently, eliminating the need for complicated water changes.
００課題を解決するための手段
本発明は生体触媒を担体に包括固定化し、水槽や生は簀
の系内に投入することによう、上記の問題点を解決でき
る。生体触媒を固定化する方法として高分子素材を用い
て微生物を包み込む包括固定化がある。本発明における
担体としては、寒天。00 Means for Solving the Problems The present invention can solve the above problems by comprehensively immobilizing a biocatalyst on a carrier and introducing it into an aquarium or a cage system. One method for immobilizing biocatalysts is entrapping immobilization, which uses polymeric materials to envelop microorganisms. The carrier in the present invention is agar.
アルギン酸塩、カラギーナンなどの天然高分子ゲル、ポ
リエチレングリコール、 ホＩＪ ヒニル７ ／Ｌ／
コール、アクリルアミドなどの合成高分子ゲルが例示さ
れる。このうち合成高分子ゲルは微生物による分解に対
して抵抗性があるため包括素材として好適である。Alginate, natural polymer gel such as carrageenan, polyethylene glycol, HoIJ Hinyl 7 /L/
Examples include synthetic polymer gels such as kohl and acrylamide. Among these, synthetic polymer gels are suitable as enveloping materials because they are resistant to decomposition by microorganisms.
本発明における含水ゲルの製法は特に限定されるもので
はなく、ゲル担体を構成する高分子の種類に応じて適宜
選択することができる。The method for producing the hydrogel in the present invention is not particularly limited, and can be appropriately selected depending on the type of polymer constituting the gel carrier.
本発明の担体の形状は特に限定されることはなく、板状
、サイコロ状、球状、繊維状、フィルム状などの任意の
形状を適宜選択することができる。The shape of the carrier of the present invention is not particularly limited, and any shape such as plate, dice, sphere, fiber, film, etc. can be appropriately selected.
本発明における含水ゲルに包括する生体触媒としては、
水の浄化作用のあるものであれば何でもよい。シュード
モナス（Ｐｓｅｕｄｏｍｏｎａｓ ）属等の単一の微生
物や酵素を固定してもよいが、作業性やコスト面から考
えて、排水処理に用いられるような活性汚泥、硝化菌、
脱窒菌等で充分である。The biocatalyst included in the hydrogel in the present invention includes:
Anything that has a water purifying effect will do. Although it is possible to immobilize a single microorganism such as the genus Pseudomonas or an enzyme, from the viewpoint of workability and cost, activated sludge, nitrifying bacteria, etc. used for wastewater treatment,
Denitrifying bacteria etc. are sufficient.
生体触媒を包括固定化した含水ゲルは閉鎖系水槽・生は
簀の系内で使用し、水槽・生は簀等に直接投入したυ、
水槽・生は贅に付属した浄化槽内に投入する方法等が考
えられる。ｌた本発明の水質浄化方法は閉鎖水系の水を
連続内寸たは断続的に更新する系にも当然応用可能であ
る。The hydrous gel containing the biocatalyst entrapping and immobilizing it was used in a closed aquarium or a cage for raw material, and the water-containing gel was placed directly into a tank or a cage for raw material.
Possible methods include putting raw fish into a septic tank attached to the fish tank. Naturally, the water purification method of the present invention can also be applied to a closed water system in which water is continuously or intermittently renewed.
なお、このような効果を利用して水泳用プールの浄化に
′４１応用できる。In addition, this effect can be used to purify swimming pools.
Ｅ、実施例
以下、実施例により本発明を具体的に説明するが１本発
明はこれらの実施例によう限定されるものではない。E. Examples The present invention will now be explained in detail with reference to Examples, but the present invention is not limited to these Examples.
ゲルの材質・形状は限定されるものではないが、特に耐
久性と微生物の棲息性に優れた球状のポリビニルアルコ
ール系含水ゲルを例として説明する。Although the material and shape of the gel are not limited, a spherical polyvinyl alcohol-based hydrogel that is particularly durable and has excellent microbial habitability will be described as an example.
実施例１
■クラレ製のポリビニルアルコール（以下ＰＶＡと略記
する）（平均重合度１７４０．ケン化度９９．８５モル
傅）を４０℃の温水で約１時間洗浄後、ＰＶＡ濃度１６
ｗｔ％になるようにＰＶＡに水を加え全量を４００２に
してＦ４（７に調整した。これをオートクレーブで１２
０℃、３０分処理し、ＰＶＡを溶解した後、室温１で放
冷した。このＰＶＡ水溶液に４嘩アルギン酸ナトリウム
水溶液２００Ｆを加えて混合し、さらに■クラレ岡山工
場（岡山系岡山市海岸通シ１丁目２番１号）の排水処理
槽よう採取し、濃縮操作を施して得られた活性汚泥菌（
濃度ＭＬＳＳ ８００００η／１）を２００２加え、
充分に攪拌した。Example 1 ■ Polyvinyl alcohol (hereinafter abbreviated as PVA) manufactured by Kuraray (average degree of polymerization 1740, degree of saponification 99.85 molar) was washed with warm water at 40°C for about 1 hour, and then the PVA concentration was 16.
Add water to PVA to make the total amount 4002 wt% and adjust to F4 (7).
After treating at 0° C. for 30 minutes to dissolve PVA, the mixture was allowed to cool at room temperature 1. A 200F aqueous solution of sodium alginate was added to this PVA aqueous solution, mixed, and collected from the wastewater treatment tank of the Kuraray Okayama Factory (1-2-1 Kaigandori, Okayama City, Okayama System), and concentrated. activated sludge bacteria (
Add 2002 concentration MLSS 80000η/1),
Stir thoroughly.
これらの混合液を先端に内径０．８ｆｉの注射針を取り
付けた内径２１１１φのビニル管１本を使用したローラ
ーポンプで１１１１／分で送液し、スターラーで攪拌し
た０、 ２ ｍｏｔ／ ｔの塩化カルシウム（ＣａＣ１
２）水溶液に氷表面１５６Ｒの高さよう滴下した。滴下
した液滴はＣａＣ１ｇ水溶液中で直ちに球状化して沈降
した。これらの球状化したＰＶＡ混合成形物を全ｆｉｃ
ａｃ１２水溶液と分離し５Ｍ留水で軽く洗浄した後、−
２０℃±３℃の冷凍庫で凍結した。２０時間凍結後、常
温で解凍することによって不透明な褐色の柔軟性に富ん
だ球状のゲルが得られた。These mixed solutions were pumped at 1111/min using a roller pump using a vinyl pipe with an inner diameter of 2111φ and a syringe needle with an inner diameter of 0.8fi attached to the tip, and the mixture was stirred with a stirrer to produce 0.2 mot/t of chloride. Calcium (CaC1
2) It was dropped into the aqueous solution at a height of 156R of the ice surface. The dropped droplets immediately became spheroidal and precipitated in an aqueous solution of 1 g of CaC. These spheroidized PVA mixture moldings are all fic
After separating from the ac12 aqueous solution and lightly washing with 5M distilled water, -
It was frozen in a freezer at 20°C ± 3°C. After freezing for 20 hours, thawing at room temperature yielded an opaque brown, flexible, spherical gel.
このゲルの強度を上げるため、以上の凍結−解凍操作を
さらに２回線シ返した。In order to increase the strength of this gel, the above freeze-thaw operation was repeated two more times.
このゲルを横６０ｃｌ１１さ３５．８ｍ、奥行２９．４
ｍのガラス製の水槽に入れ、５５ｔの脱塩素水とともに
８匹の金魚（コメント）を投入した。エアレーションを
続け、毎日１２の餌を投入した。水槽の水は交換しなか
った。This gel has a width of 60cl11, a length of 35.8m, and a depth of 29.4m.
8 goldfish (comments) were placed in a glass aquarium of 55 tons and 55 tons of dechlorinated water. Aeration was continued and 12 feeds were added daily. The water in the tank was not changed.
１力月経過後も、水槽の水は透明な咬１で、藻類も繁殖
せず、金魚にも異常は認められなかった。Even after one month had passed, the water in the aquarium was crystal clear, no algae had grown, and no abnormalities were observed in the goldfish.
水槽内の水の負荷をＴＯＣメーター（島津製作所ＴＯＣ
−５００）によシ測定したところ、５り／を以下であう
、きわめて優れた水質が保たれていることがわかった。TOC meter (Shimadzu TOC) measures the water load in the aquarium.
-500), it was found that extremely excellent water quality was maintained, with a rating of 5 points or less.
比較例１
ゲルを投入せず、実施例１と同様に、横６０ｃｌ１１、
高さ３５．８ｃＨ１，奥行２９．４−のガラス製の水槽
に。Comparative Example 1 Same as Example 1 without adding gel, horizontal 60cl11,
In a glass aquarium with a height of 35.8cH1 and a depth of 29.4cm.
５５ｔの脱塩素水とともに８匹の金魚（コメント）を投
入した。エアレーションを続け、毎日実施例１と同様の
糾ｌｖを投入した。水槽の水は交換しなかった。Eight goldfish (comments) were added along with 55 tons of dechlorinated water. Aeration was continued, and the same lv as in Example 1 was added every day. The water in the tank was not changed.
約１週間経過後、水槽の水は良べ残しの餌と排泄物のた
めに白く濁り、カラス壁に藻類が発生した。３週間経過
後に８匹の金魚が死滅した。水槽内の負荷は、徐々に増
加し続け、３週間後にはＴＯＣメーターで測定したとこ
ろ５ｏｎｙ７ｔｔで増加していた。After about a week, the water in the tank became cloudy due to leftover food and excrement, and algae grew on the crow walls. Eight goldfish died after three weeks. The load in the aquarium continued to gradually increase, and after 3 weeks, it was measured with a TOC meter and had increased to 5ony7tt.
比較例２ 実施例工と同様に、横６０の、高さ３５．８ ｃｍ。Comparative example 2 Like the example construction, the width is 60 cm and the height is 35.8 cm.
奥行２９．４ｃｒｎのガラス製の水槽に、５５ｔの脱塩
素水とともに５匹の金魚（コメント）を投入した。Five goldfish (comments) were placed in a glass aquarium with a depth of 29.4 crn along with 55 tons of dechlorinated water.
これに、市販のセラミックス製吸看剤を加えた。A commercially available ceramic absorbent was added to this.
エアレーションを続け、毎日実施例１と同様の餌１ｔを
投入した。水槽の水は交換しなかった。Aeration was continued, and 1 ton of the same bait as in Example 1 was added every day. The water in the tank was not changed.
実験開始後約２週間は、水槽内の水は透明なままで、Ｔ
ＯＣも１０η／を以下で水質の浄化作用が見られたが、
約３週間経過後、水槽内の水は白く濁り、ガラス塘に藻
類が発生し、水槽内の負荷が上昇し始めた。１力月後の
ＴＯＣは４５４／Ａであり、効果が長続きしないことが
わかった。For about two weeks after the start of the experiment, the water in the tank remained clear and T
Water purification effects were observed for OC below 10η/, but
After about three weeks, the water in the tank became white and cloudy, algae grew on the glass bowl, and the load in the tank began to increase. The TOC after 1 month was 454/A, indicating that the effect would not last long.
比較例３ 実施例１と同様に、横６０ ｃｍ ＠高さ３５．８側。Comparative example 3 As in Example 1, width 60 cm @ height 35.8 side.
奥行２９，４ｃＷｌのガラス製の水槽に、５５ｔの脱塩
素水とともに５匹の金魚（コメント）を投入した。Five goldfish (comments) were placed in a glass aquarium with a depth of 29.4 cWl along with 55 tons of dechlorinated water.
これに、市販の菌体を含む水を約ＬＯＯａ（加えた。About LOOa (about LOOa) of commercially available water containing bacterial cells was added to this.
エアレーションを続け、毎日実施例１と同様の餌１ｆを
投スした。水槽の水は交換しなかった。Aeration was continued, and 1f of the same bait as in Example 1 was thrown every day. The water in the tank was not changed.
約１週間経過後、水槽の水は食べ残しの餌と排泄物のた
めに白く濁り％藻類が発生した。水槽内の負荷は、徐々
に増加し続け、３週間後には、ＴＯＣが５ｏ可／１−１
で増加していた。After about a week, the water in the aquarium became cloudy due to uneaten food and excrement, and algae grew. The load in the aquarium continues to increase gradually, and after 3 weeks, the TOC is 5o/1-1.
was increasing.
Ｇ１発明の効果
以上の実施例で明らかなとおり、生体触媒を包括固定化
した含水ゲルを、閉鎖水系に使用することにより系内の
水が浄化され、水の浄化作用が長期間にわたって持続す
る。Effects of the G1 Invention As is clear from the above examples, by using a hydrogel in which a biocatalyst is entrappingly immobilized in a closed aqueous system, the water in the system is purified, and the water purification effect is maintained for a long period of time.
Claims (4)
質浄化剤。(1) A water purifier for closed water systems consisting of a biocatalyst-immobilized hydrogel.
る請求項１記載の水質浄化剤。(2) The water purifier according to claim 1, wherein the hydrogel is a polyvinyl alcohol-based hydrogel.
を特徴とする閉鎖水系の水質浄化方法。(3) A closed water system water purification method characterized by using the water purifier according to claim 1 or 2.
方法。(4) The water purification method according to claim 3, wherein the closed water system is a fish farming system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208394A JPH0372996A (en) | 1989-08-11 | 1989-08-11 | Water purifying of closed water system and water purifying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208394A JPH0372996A (en) | 1989-08-11 | 1989-08-11 | Water purifying of closed water system and water purifying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0372996A true JPH0372996A (en) | 1991-03-28 |
Family
ID=16555532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1208394A Pending JPH0372996A (en) | 1989-08-11 | 1989-08-11 | Water purifying of closed water system and water purifying process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0372996A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0553465U (en) * | 1991-12-26 | 1993-07-20 | 株式会社クラレ | Aquarium for ornamental fish |
| JPH0553464U (en) * | 1991-12-26 | 1993-07-20 | 株式会社クラレ | Aquarium lid |
| KR100460461B1 (en) * | 2002-05-30 | 2004-12-08 | 주식회사 에코다임 | Immobilized Body of Biological Material, and Apparatus for Manufacturing the Body |
| CN109205795A (en) * | 2017-12-21 | 2019-01-15 | 向勇 | A kind of compound nitrifier and its production method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173777A (en) * | 1985-01-25 | 1986-08-05 | Agency Of Ind Science & Technol | Immobilized bacterium, production thereof and method of water treatment |
| JPS62186995A (en) * | 1986-02-14 | 1987-08-15 | Sanki Eng Co Ltd | Microorganism immobilized carrier for waste water treatment and its production |
| JPS63229144A (en) * | 1986-11-15 | 1988-09-26 | カール ツァイス スティフツンク | Carrier substance for fixing microbe |
-
1989
- 1989-08-11 JP JP1208394A patent/JPH0372996A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173777A (en) * | 1985-01-25 | 1986-08-05 | Agency Of Ind Science & Technol | Immobilized bacterium, production thereof and method of water treatment |
| JPS62186995A (en) * | 1986-02-14 | 1987-08-15 | Sanki Eng Co Ltd | Microorganism immobilized carrier for waste water treatment and its production |
| JPS63229144A (en) * | 1986-11-15 | 1988-09-26 | カール ツァイス スティフツンク | Carrier substance for fixing microbe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0553465U (en) * | 1991-12-26 | 1993-07-20 | 株式会社クラレ | Aquarium for ornamental fish |
| JPH0553464U (en) * | 1991-12-26 | 1993-07-20 | 株式会社クラレ | Aquarium lid |
| KR100460461B1 (en) * | 2002-05-30 | 2004-12-08 | 주식회사 에코다임 | Immobilized Body of Biological Material, and Apparatus for Manufacturing the Body |
| CN109205795A (en) * | 2017-12-21 | 2019-01-15 | 向勇 | A kind of compound nitrifier and its production method |
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