JP2925187B2 - How to prevent algae from breeding in reservoirs - Google Patents
How to prevent algae from breeding in reservoirsInfo
- Publication number
- JP2925187B2 JP2925187B2 JP28217289A JP28217289A JP2925187B2 JP 2925187 B2 JP2925187 B2 JP 2925187B2 JP 28217289 A JP28217289 A JP 28217289A JP 28217289 A JP28217289 A JP 28217289A JP 2925187 B2 JP2925187 B2 JP 2925187B2
- Authority
- JP
- Japan
- Prior art keywords
- algae
- water
- reservoir
- reservoirs
- ozone
- 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 - Fee Related
Links
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
【発明の詳細な説明】 発明の分野： 本発明は貯水所の藻の繁殖防止方法に関する。Description: FIELD OF THE INVENTION The present invention relates to a method for preventing the growth of algae in a reservoir.
発明が解決しようとする課題： 一般に製鉄工場、製紙工場等において工業用水が必要
となる。これらの工場において工場に隣接する場所に貯
水槽、貯水池等の貯水所が存在する。その貯水所は工場
の影響で水温は普通の貯水所と比べても高く、25°〜30
℃程度となっている。この25°〜30℃の水温ではその貯
水所に藻がもっとも繁殖しやすい状態となっている。あ
まりにも藻が繁殖しすぎると水が汚染され、工場のシス
テム自体が腐食により破損する恐れがある。このような
藻を物理的に除去しようとすると藻の繁殖−除去−藻の
繁殖−除去の繰返しになり非常な労力が必要となる。そ
のため現実にはこの貯水所中の藻を除去することは不可
能であった。又塩素等の薬品をその貯水所に加えて藻を
除去しようとするとその薬品自体が工場のシステム自体
に悪影響を与えると共にその水を工場外に排出すると水
汚染の原因にもなる。そこで従来ではこのような貯水所
の藻を除去する適切な手段はなかった。Problems to be Solved by the Invention: Generally, industrial water is required in steel mills, paper mills, and the like. In these factories, there are reservoirs such as water storage tanks and reservoirs adjacent to the factories. The water temperature of the reservoir is higher than that of ordinary reservoirs due to the effect of the factory.
℃. At this water temperature of 25 ° C to 30 ° C, the algae are most likely to breed in the reservoir. If the algae grows too much, the water is contaminated and the factory system itself can be damaged by corrosion. Attempts to physically remove such algae are repeated algal propagation-removal-algae propagation-removal, which requires a great deal of labor. Therefore, in reality, it was impossible to remove the algae in this reservoir. If a chemical such as chlorine is added to the reservoir to remove algae, the chemical itself has an adverse effect on the factory system itself, and discharging the water outside the factory causes water pollution. Therefore, there has been no appropriate means for removing algae from such a reservoir in the past.
本発明者の研究によるとそのような藻を完全に取除く
ことは必ずしも必要ではなく、一定量以上にならない程
度に繁殖を防止できれば、工場のシステムへの影響がほ
とんどないことを発見した。According to the study of the present inventor, it has been found that it is not always necessary to completely remove such algae, and if the breeding can be prevented to a certain amount or less, there is almost no effect on the factory system.
課題を解決するための手段： 一般に藻とは特定な菌の存在によって繁殖する。本発
明者は藻を繁殖させる菌を消滅させるような手段として
まず貯水所の水のオゾン処理を考えた。この場合貯水所
にオゾン水を添加することである。この方法では藻の繁
殖を促進する菌を死滅させ、藻の繁殖を防止できること
がわかった。しかし貯水所中にオゾンが残留し、工場の
システムを酸化させるばかりでなく、人間にも悪影響を
及ぼすことがわかった。Means to Solve the Problem: Algae generally propagate by the presence of specific bacteria. The inventor first considered ozonation of water in a reservoir as a means for eliminating bacteria that propagate algae. In this case, it is to add ozone water to the reservoir. It was found that this method can kill bacteria that promote the growth of algae and prevent the growth of algae. However, it was found that ozone remained in the reservoir, not only oxidizing the factory system but also harming humans.
本発明者はさらに研究を進め本発明の完成に至った。
すなわち本発明は、貯水所の一部の水の循環装置を設
け、その循環装置は珪藻土又はその他の材料からなる
過装置、オゾン化装置及び紫外線照射装置を含みその循
環水は上記３つの装置を記載の順番で通過する工程を含
む工業用水用の貯水所中の藻の繁殖防止方法に関する。The present inventor has further studied and completed the present invention.
That is, the present invention provides a device for circulating water in a part of a reservoir, the device including a diatomaceous earth or other material, an ozonation device, and an ultraviolet irradiation device. The present invention relates to a method for preventing the growth of algae in a reservoir for industrial water, including a step of passing in the order described.
本発明のもっとも特徴とするところはオゾン化装置の
次に紫外線照射装置を設けたことである。紫外線照射装
置を設置した主たる目的はオゾンを除去することであ
る。従って本発明を通過した処理後の循環水にはほとん
どオゾンが含まれていないことがわかった。そのため貯
水池中の残留オゾンによる欠点をすべて排除できた。The most characteristic feature of the present invention is that an ultraviolet irradiation device is provided next to the ozonization device. The main purpose of installing the ultraviolet irradiation device is to remove ozone. Therefore, it was found that the circulating water after the treatment passed through the present invention contained almost no ozone. Therefore, all disadvantages due to residual ozone in the reservoir could be eliminated.
また紫外線照射は藻の繁殖を促進する菌の殺菌する効
果もあるであろう。Ultraviolet irradiation may also have the effect of killing bacteria that promote the growth of algae.
残留オゾンの除去に紫外線が効果があることを本発明
者が初めて発見したものである。オゾン化処理の前に紫
外線照射を行なってもまったく効果がない。The present inventors have discovered for the first time that ultraviolet light is effective in removing residual ozone. Irradiation with ultraviolet light before ozonation treatment has no effect at all.
過装置は水中の夾雑物を除去するのが目的であり、
珪藻土過機、もっとも好ましいが他の過装置も使用
できる。The purpose of the filter is to remove contaminants in the water,
Diatomaceous earth filters, most preferably other filters, can also be used.
オゾン化装置は各種の市販のものが使用できる。この
装置はオゾンを発生させ、そのオゾンを循環水に取込ま
せる。一般に市販されているオゾン化装置は100〜500mg
/hourのオゾンを水中に取込ませることができる。Various commercially available ozonizers can be used. This device generates ozone and takes the ozone into the circulating water. Generally commercially available ozonizers are 100-500mg
/ hour ozone can be taken into the water.
紫外線照射装置は各種市販のものが使用できる。市販
の紫外線照射装置は出力10〜10kwのものである。Various commercially available ultraviolet irradiation devices can be used. A commercially available ultraviolet irradiation device has an output of 10 to 10 kw.
一般に500l/時間の貯水からの循環水を処理するのに5
0〜1000mg/hourのオゾン発生機及び10〜1kwの紫外線照
射装置を使用する。Generally 5 to treat circulating water from 500 l / h storage
Use an ozone generator of 0 to 1000 mg / hour and an ultraviolet irradiation device of 10 to 1 kw.
一般に１日当り貯水の水の量の３〜80％を本発明に従
って処理すると藻の発生を防止できる。Generally, treating 3 to 80% of the amount of water stored per day according to the present invention can prevent algae formation.
実施例１ 水耕栽培用 水耕栽培用水殺菌処理の効果を判定する。Example 1 For hydroponics The effect of water sterilization for hydroponics is determined.
使用したオゾン化処理装置 使用したUV照射装置 処理期間10日間 これは実験なので過装置は使用しなかった。Ozonation equipment used UV irradiation equipment used 10 days treatment period Since this was an experiment, no excess equipment was used.
試料 No.1 未処理 No.2 Ｏ3処理（水温29.7℃,pH7.61）＋UV 微生物検査：厚生省監修食品衛生検査指針（II）に準拠 殺菌率 一般生菌 95.9［％］ 大腸菌群 99.5［％］ 実施例２ 500m3の水を有する貯水所を50m3／日の水を本発明に
従って処理した。Sample No.1 untreated No.2 O 3 treatment (water temperature 29.7 ℃, pH7.61) + UV microbial inspection: compliance with the Ministry of Health and Welfare supervision food sanitation inspection guidelines (II) The water plant with a kill rate viable microorganisms 95.9 [%] coliform 99.5 [%] water of Example 2 500 meters 3 was treated according to the present invention the water 50 m 3 / day.
過機として珪藻土過機を使用した。水100l/時間
に対し30mg/時間のオゾンを発生させ、そして水100l/時
間当り3Wの出力の紫外線照射装置を使用した。A diatomaceous earth filter was used as a filter. 30 mg / hour of ozone was generated for 100 l / hour of water, and an ultraviolet irradiation device having an output of 3 W per 100 l / hour of water was used.
藻の繁殖は完全に防止できた。処理が行なわれている
間貯水所の残留濃度は2ppmであった。Algae propagation was completely prevented. The residual concentration in the reservoir during the treatment was 2 ppm.
比較例１ 紫外線照射を行なわずにオゾン化処理のみを行なっ
た。藻の繁殖は完全に防止でき処理中の貯水所の残留オ
ゾンは120ppmであった。Comparative Example 1 Only the ozonation treatment was performed without performing the ultraviolet irradiation. Algae growth was completely prevented and the residual ozone in the reservoir during treatment was 120 ppm.
本発明の効果： 本発明では、貯水所の藻の除去に際し、藻の直接的に
除去するのでなく、藻の繁殖を促進する菌の数を減らす
ことによって、貯水所の藻の繁殖を防止することであ
る。又本発明に従えば処理後の水汚染がまったく起らな
いことをも特徴とする。Effect of the present invention: The present invention prevents the growth of algae in a reservoir by reducing the number of bacteria that promote the growth of algae instead of directly removing the algae in removing the algae in the reservoir. That is. According to the present invention, it is also characterized in that no water contamination occurs after the treatment.
フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０２Ｆ 1/50 ５４０ Ｃ０２Ｆ 1/50 ５４０Ａ ５５０ ５５０Ｈ ５６０ ５６０Ｃ ５６０Ｚ Continued on the front page (51) Int.Cl. 6 Identification code FI C02F 1/50 540 C02F 1/50 540A 550 550H 560 560C 560Z
Claims (1)
循環装置は珪藻土又はその他の材料を含む濾過装置、オ
ゾン化装置及び紫外線照射装置を含みその循環水は上記
３つの装置を記載の順番で通過する工程を含む工業用水
用の貯水所中の藻の繁殖防止法。An apparatus for circulating water in a part of a reservoir is provided, the circulating apparatus including a filtering apparatus containing diatomaceous earth or other material, an ozonizing apparatus and an ultraviolet irradiation apparatus, and the circulating water including the above three apparatuses. A method for preventing the growth of algae in a reservoir for industrial water, comprising the steps of passing in the order described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28217289A JP2925187B2 (en) | 1989-10-30 | 1989-10-30 | How to prevent algae from breeding in reservoirs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28217289A JP2925187B2 (en) | 1989-10-30 | 1989-10-30 | How to prevent algae from breeding in reservoirs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03143596A JPH03143596A (en) | 1991-06-19 |
| JP2925187B2 true JP2925187B2 (en) | 1999-07-28 |
Family
ID=17649030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28217289A Expired - Fee Related JP2925187B2 (en) | 1989-10-30 | 1989-10-30 | How to prevent algae from breeding in reservoirs |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2925187B2 (en) |
-
1989
- 1989-10-30 JP JP28217289A patent/JP2925187B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03143596A (en) | 1991-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |