JP5356877B2 - Granular green algae control agent and method for controlling granular green algae - Google Patents
Granular green algae control agent and method for controlling granular green algae Download PDFInfo
- Publication number
- JP5356877B2 JP5356877B2 JP2009078767A JP2009078767A JP5356877B2 JP 5356877 B2 JP5356877 B2 JP 5356877B2 JP 2009078767 A JP2009078767 A JP 2009078767A JP 2009078767 A JP2009078767 A JP 2009078767A JP 5356877 B2 JP5356877 B2 JP 5356877B2
- Authority
- JP
- Japan
- Prior art keywords
- green algae
- granular green
- control agent
- granular
- aminopropyl
- 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.)
- Active
Links
Abstract
Description
本発明は、粒状緑藻防除剤、及び、粒状緑藻の防除方法に関する。 The present invention relates to a granular green algae control agent and a method for controlling granular green algae.
開放循環冷却水系におけるスライムコントロール剤として、イソチアゾリン系化合物、特に、５−クロロ−２−メチル−４−イソチアゾリン−３−オンと２−メチル−４−イソチアゾリン−３−オンとの混合剤は、低濃度の添加でも有効であり、抗菌スペクトルが広く、さらに水溶性で取扱いが容易なことから広く使われてきた（米国特許第４２４１２１４号（特許文献１）、特公昭５８−４６８２号公報（特許文献２））。 As a slime control agent in an open circulating cooling water system, an isothiazoline compound, in particular, a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one is low. It is effective even with the addition of concentration, and has been widely used because of its wide antibacterial spectrum, water solubility and easy handling (US Pat. No. 4,241,214 (Patent Document 1), Japanese Patent Publication No. 58-4682 (Patent Document) 2)).
この組合せ薬剤によれば、殆どの細菌類、真菌類、藻類に有効であるが、一部の粒状緑藻類に殆ど効果を示さない。実際、本混合液を長期間使用している冷却水系では、細菌類、真菌類及び他の藻類の繁殖は認められないものの、冷却塔の上部水槽や充填材に粒状緑藻が繁殖し、問題となることが多い。 This combination drug is effective for most bacteria, fungi and algae, but has little effect on some granular green algae. In fact, in the cooling water system that has been using this mixed solution for a long time, the growth of bacteria, fungi and other algae is not allowed, but granular green algae propagate in the upper water tank and packing material of the cooling tower. Often becomes.
ここで、粒状緑藻類としては、テトラスポラ属、グロエオキスティス属、スフェロキスティス属、あるいはクロレラ属等に属するものなど、非常に多くの種類のものが存在するが、顕微鏡観察等によってもこれら粒状緑藻の種類の明確な区別は困難である場合が多い。 Here, there are many kinds of granular green algae such as those belonging to the genus Tetraspora, Glooekistis, Spherokistis, Chlorella, etc., but these granular green algae can be obtained by microscopic observation or the like. It is often difficult to clearly distinguish between these types.
これら多様な粒状緑藻は、いずれも鮮やかな緑色であり、繁殖の結果、水面を覆い、機器に付着して美観を著しく損ねるとともに、冷却塔の効率を低下させる。このうち、イソチアゾリン系化合物を藻類防除剤として長期間使用した水系水に発生した粒状緑藻に対しては、環境への負荷が少なくコスト的にも有利な低濃度の添加で有効な防除剤が少なく、しかも網羅的に効果のある防除剤としては、金属部材に対して強い腐食性を有し、その結果、使用できる環境が限定される塩素系殺菌剤以外は知られておらず、その他の既存の防除剤では粒状緑藻の種類によっては効果が得られたり、得られなかったりする点が問題であった。 All of these various granular green algae are vivid green, and as a result of breeding, they cover the water surface, adhere to the equipment and significantly impair the aesthetics, and reduce the efficiency of the cooling tower. Among these, for the granular green algae generated in aqueous water using isothiazoline compounds as algae control agents for a long time, there are few effective control agents by adding low concentrations that are less burdensome on the environment and advantageous in terms of cost. Moreover, as a comprehensively effective control agent, there is no known other than a chlorine-based disinfectant that has a strong corrosiveness to metal parts, and as a result, the environment in which it can be used is limited. However, there is a problem in that the effect of the control agent is not obtained depending on the type of the granular green algae.
このため、現状では、粒状緑藻が発生した水系水をサンプリングし、既存の何種類もの防除剤を用いてラボテストを行い、検討した防除剤のうち、効果が得られた防除剤を実際の水系水に応用すると云う方法が採られているものの、この方法では、手間がかかり、かつ、防除完了までの日数が長くなると云う欠点があるとともに、用いた防除剤に耐性を有する（別の種類のものと思われる）粒状緑藻が繁殖しはじめる可能性もあり、その場合には対応は場当たり的となるとともに防除完了までにさらに多くの手間と日数を要する。 Therefore, under the present circumstances, sampling the aqueous water in which granular green algae are generated, conducting a laboratory test using several existing types of control agents, among the studied control agents, the effective control agent is the actual aqueous water. However, this method has the disadvantages that it takes time and takes a long time to complete the control, and it is resistant to the control agent used (a different type). It is possible that granular green algae will start to propagate. In such a case, the response will be ad hoc and more time and effort will be required to complete the control.
このため、低濃度の添加で金属腐食のおそれがなく、かつ、さまざまな粒状緑藻に対して広範囲に殺藻効果を有する防除剤が求められていた。 For this reason, there has been a demand for a control agent which has no fear of metal corrosion when added at a low concentration and has a wide range of algicidal effects on various granular green algae.
ここで、高級脂肪族ポリアミンは、従来、殺菌剤（特表２００３−５０３３２１公報（特許文献３））、殺ウィルス剤用途（特表２００５−５１４４２７公報（特許文献４））、消毒剤（特表２００４−５０９１３８公報（特許文献５））、工業用防腐剤（特開平１１−７１２１０号公報（特許文献６））、海生生物付着防止剤（特開平１０−７７２０２号公報（特許文献７））などの用途に応用されることは公知であった。 Here, higher aliphatic polyamines are conventionally used as bactericides (Japanese Patent Publication No. 2003-503321 (Patent Document 3)), virucidal applications (Japanese Patent Publication No. 2005-514427 (Patent Document 4)), disinfectants (Special Table). 2004-509138 (Patent Document 5)), industrial preservatives (Japanese Patent Laid-Open No. 11-71210 (Patent Document 6)), marine organism adhesion preventives (Japanese Patent Laid-Open No. 10-77202 (Patent Document 7)). It has been publicly known to be applied to such uses.
しかし、殺藻効果、特に、従来使用されている殺微生物剤が効きにくい粒状緑藻に対する殺藻効果については、全く知られていなかった。 However, the algicidal effect, in particular, the algicidal effect on granular green algae, to which the conventionally used microbicides are not effective, has not been known at all.
本発明は、上記した従来の問題点を改善する、すなわち、金属腐食のおそれがなく、さまざまな粒状緑藻に対して広範囲に殺藻効果を有し、かつ、低濃度の添加で高い効果が得られる粒状緑藻防除剤を提供することを目的とする。 The present invention improves the above-mentioned conventional problems, that is, there is no risk of metal corrosion, it has a wide range of algicidal effects on various granular green algae, and a high effect is obtained by addition of a low concentration. It is an object of the present invention to provide a granular green algae control agent.
本発明者らは上記課題を解決すべく、種々検討を行った結果、高級脂肪族ポリアミンの中でも、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンが、様々な粒状緑藻に対して全く想像することができない高い防除効果が得られることを見出し、本発明に至った。 As a result of various studies conducted by the present inventors to solve the above-mentioned problems, among higher aliphatic polyamines, N, N-bis (3-aminopropyl) dodecylamine is completely imaginable for various granular green algae. The present inventors have found that a high control effect that cannot be achieved is obtained, and have reached the present invention.
すなわち、本発明の粒状緑藻防除剤は、イソチアゾリン系化合物を常時使用している水系に発生する粒状緑藻に有効な粒状緑藻防除剤であって、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンを有効成分として含有することを特徴とする粒状緑藻防除剤である。 That is, the granular green algae control agent of the present invention is a granular green algae control agent effective for granular green algae generated in an aqueous system always using an isothiazoline-based compound, and N, N-bis (3-aminopropyl) dodecylamine Is a granular green algae control agent characterized by containing.
また、本発明の粒状緑藻の防除方法は、イソチアゾリン系化合物を常時使用している水系に発生する粒状緑藻の防除方法であって、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンを防除対象水系に５ｍｇ／Ｌ以上２０ｍｇ／Ｌ以下添加することを特徴とする粒状緑藻の防除方法である。 The method for controlling granular green algae according to the present invention is a method for controlling granular green algae generated in an aqueous system that always uses an isothiazoline-based compound, and is a target for controlling N, N-bis (3-aminopropyl) dodecylamine. A method for controlling granular green algae, comprising adding 5 mg / L or more and 20 mg / L or less to an aqueous system.
本発明の粒状緑藻防除剤によれば、金属腐食のおそれがなく、さまざまな粒状緑藻に対して広範囲に殺藻効果を有し、かつ、低濃度の添加で高い効果が得られる。 According to the granular green algae control agent of the present invention, there is no fear of metal corrosion, it has a wide range of algicidal effects on various granular green algae, and a high effect can be obtained by adding a low concentration.
化学式（１）にＮ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンの構造式を示す。 Chemical formula (1) shows the structural formula of N, N-bis (3-aminopropyl) dodecylamine.
このようなＮ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンはアルカリ性の黄色液体であり、その低濃度水溶液は塩素系殺菌剤のように銅や鉄に対して腐食を促進させる恐れはない。 Such N, N-bis (3-aminopropyl) dodecylamine is an alkaline yellow liquid, and its low-concentration aqueous solution has no fear of accelerating corrosion against copper or iron unlike chlorinated fungicides.
本発明の粒状緑藻防除方法において、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンの防除対象水系への添加量としては、１ｍｇ／Ｌ以上５００ｍｇ／Ｌ以下であることが好ましい。添加量が１ｍｇ／Ｌ未満であると充分な粒状緑藻防除効果が得られないことがあり、また、５００ｍｇ／Ｌを超えて添加しても、添加量の増加に見合う粒状緑藻防除効果の増加は得られにくく、かつ、添加水系での泡立ちが生じやすくなる。より好ましい添加範囲は１ｍｇ／Ｌ以上１００ｍｇ／Ｌ以下、最適な添加範囲は５ｍｇ／Ｌ以上２０ｍｇ／Ｌ以下である。 In the granular green alga control method of the present invention, the amount of N, N-bis (3-aminopropyl) dodecylamine added to the control target water system is preferably 1 mg / L or more and 500 mg / L or less. If the amount added is less than 1 mg / L, sufficient particulate green algae control effect may not be obtained, and even if added over 500 mg / L, the increase in particulate green algae control effect commensurate with the increase in amount added is It is difficult to obtain and foaming easily occurs in the added water system. A more preferable addition range is 1 mg / L or more and 100 mg / L or less, and an optimum addition range is 5 mg / L or more and 20 mg / L or less.
本発明において、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンを使用するに当たり、本発明の効果が妨げられない限り、さらにその特性を改良するなどの目的で、例えばアクリル酸系、マレイン酸系、メタクリル酸系、スルホン酸系、イタコン酸系、または、イソブチレン系の各重合体やこれらの共重合体、燐酸系重合体、ホスホン酸、ホスフィン酸、あるいはこれらの水溶性塩、などのスケール防止剤、例えば５-クロロ−２−メチル−４−イソチアゾリン−３−オン、２−メチル−４−イソチアゾリン−３−オン、１，２−ベンズイソチアゾリン−３−オン等のイソチアゾリン系化合物、グルタルアルデヒド、フタルアルデヒド等のアルデヒド系化合物、過酸化水素、ヒドラジン、塩素系殺菌剤（次亜塩素酸ナトリウム等）、臭素系殺菌剤およびヨウ素系殺菌剤、さらにピリチオン系化合物、ジチオール系化合物、メチレンビスチオシアネートなどのチオシアネート系化合物、四級アンモニウム塩系化合物、四級ホスホニウム塩系化合物、ピリジニウム塩系化合物、ヨーネンポリマー等のカチオン系化合物、などのスライム防止剤、例えばベンゾトリアゾール、トリルトリアゾール等のアゾール類、例えばエチレンジアミン、ジエチレントリアミン等のアミン系化合物、例えばニトリロ三酢酸、エチレンジアミン四酢酸、ジエチレントリアミン五酢酸等のアミノカルボン酸系化合物、例えばグルコン酸、クエン酸、シュウ酸、ギ酸、酒石酸、フィチン酸、琥珀酸、乳酸等の有機カルボン酸など、各種の水処理剤を併用することができ、その場合も本発明に含まれる。 In the present invention, when N, N-bis (3-aminopropyl) dodecylamine is used, unless the effect of the present invention is hindered, for the purpose of further improving the characteristics, for example, acrylic acid-based, maleic acid , Methacrylic acid-based, sulfonic acid-based, itaconic acid-based or isobutylene-based polymers, copolymers thereof, phosphoric acid-based polymers, phosphonic acid, phosphinic acid, or water-soluble salts thereof Inhibitors, for example, isothiazoline-based compounds such as 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolin-3-one, glutaraldehyde Aldehyde compounds such as phthalaldehyde, hydrogen peroxide, hydrazine, chlorinated fungicides (such as sodium hypochlorite), bromine Fungicides and iodine fungicides, pyrithione compounds, dithiol compounds, thiocyanate compounds such as methylenebisthiocyanate, quaternary ammonium salt compounds, quaternary phosphonium salt compounds, pyridinium salt compounds, ionene polymers, etc. Anti-slime agents such as cation compounds, such as azoles such as benzotriazole and tolyltriazole, amine compounds such as ethylenediamine and diethylenetriamine, and aminocarboxylic acids such as nitrilotriacetic acid, ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid Various water treatment agents such as compounds, for example, organic carboxylic acids such as gluconic acid, citric acid, oxalic acid, formic acid, tartaric acid, phytic acid, succinic acid, and lactic acid can be used together, and such cases are also included in the present invention. .
以下に本発明の粒状緑藻防除剤の実施例について具体的に説明する。 Examples of the granular green alga control agent of the present invention will be specifically described below.
２倍に希釈したデトマー（Ｄｅｔｍｅｒ）培地中に、イソチアゾリン（５−クロロ−２−メチル−４−イソチアゾリン−３−オンと２−メチル−４−イソチアゾリン−３−オンとの併用）を常時使用して藻類の発生を防止してきたにもかかわらず、粒状緑藻が多量に発生した冷却水系（所在：茨城県つくば市）で稼働中の冷却塔より採取した粒状緑藻を、１ｍＬ当たりの乾燥重量が０．２ｍｇとなるように懸濁し、１５ｍＬ容のＬ型試験管に１０ｍＬずつ分注した。 Always use isothiazoline (combination of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one) in a 2-fold diluted Detmer medium. Although the generation of algae has been prevented, the dry weight per mL of granular green algae collected from a cooling tower operating in a cooling water system (location: Tsukuba City, Ibaraki Prefecture) where a large amount of granular green algae was generated The suspension was suspended to 2 mg, and 10 mL was dispensed into a 15 mL L-shaped test tube.
次に、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミン（略号：ＢＡＰＤＡ）、及び、比較のために、Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミンに代わる公知のポリアミン系殺菌剤として、Ｎ，Ｎ−ビス（３−アミノプロピル）オクチルアミン（略号：ＢＡＰＯＡ）、Ｎ−ドデシル−ジプロピレントリアミン（Ｃ１２Ｈ２５−ＮＨ−Ｃ３Ｈ６−ＮＨ−Ｃ３Ｈ６−ＮＨ２）（略号：ＤＤＰＴＡ）、及び、ポリアミン系以外の公知の殺菌剤として、１０重量％の５−クロロ−２−メチル−４−イソチアゾリン−３−オンと３重量％の２−メチル−４−イソチアゾリン−３−オンとを含む製剤（略号：ＣＭＩ）のそれぞれを、表１に示す添加量となるように添加した後、１００００ｌｘの光を照射して３０ｒｐｍで振とうしながら、３０℃で７日間（接触時間）培養した。そして経日的に培養液の色調を観察し、緑色が初期と同程度である場合を＋、増殖して緑色が濃くなった場合を＋＋、さらに著しく増殖した場合を＋＋＋とし、一方、緑色が若干褪色した場合を士、完全に褪色して微黄白色となった場合を一と判定した。こうして調べた結果を、表１に併せて示した。 Next, N, N-bis (3-aminopropyl) dodecylamine (abbreviation: BAPDA) and, for comparison, a known polyamine fungicide replacing N, N-bis (3-aminopropyl) dodecylamine as, N, N-bis (3-aminopropyl) octylamine (abbreviation: BAPOA), N- dodecyl - dipropylenetriamine (C 12 H 25 -NH-C 3 H 6 -NH-C 3 H 6 -NH 2 ) (Abbreviation: DDPTA) and known disinfectants other than polyamines, 10% by weight of 5-chloro-2-methyl-4-isothiazolin-3-one and 3% by weight of 2-methyl-4-isothiazoline Each of the preparations containing -3-one (abbreviation: CMI) was added so as to have the addition amount shown in Table 1, and then irradiated with 10000 lx light and shaken at 30 rpm. While, 7 days at 30 ° C. (contact time) and cultured. The color of the culture solution is observed over time. When the green color is about the same as the initial level, it is +, when it grows and the green color becomes dark, and when it grows markedly, it is +++. The case where the color was slightly faded was judged to be one, and the case where it was completely faded to become slightly yellowish white was judged as one. The results thus examined are also shown in Table 1.
表１により、本発明の粒状緑藻防除剤は、上記粒状緑藻において、高い防除能を発揮することが判る。 It can be seen from Table 1 that the granular green alga control agent of the present invention exhibits high control ability in the granular green algae.
次にイソチアゾリンを常時使用する複数の冷却水系で発生した粒状緑藻に対しての防除効果について調べた。すなわち、上記冷却水系とは異なる、１２箇所の冷却水系水で発生した粒状緑藻（Ａ〜Ｌ）を用い、上記同様に本発明に係る粒状緑藻防除剤（Ｎ，Ｎ−ビス（３−アミノプロピル）ドデシルアミン）（略号：ＢＡＰＤＡ）による殺藻試験を行い、このとき、充分な防除効果と云える、添加後７日間で粒状緑藻の緑色が完全に褪色して微黄白色となる最低添加濃度（ｍｇ／Ｌ）を調べた。 Next, the control effect on granular green algae generated in a plurality of cooling water systems always using isothiazoline was investigated. That is, using the granular green algae (A to L) generated in 12 locations of the cooling water system water different from the cooling water system, the granular green algae control agent (N, N-bis (3-aminopropyl) according to the present invention is used as described above. ) Dodecylamine) (abbreviation: BAPDA), and the minimum concentration of addition that can be said to be a sufficient control effect. (Mg / L) was examined.
また、同時に、Ｎ，Ｎ−ビス（３−アミノプロピル）オクチルアミン（略号：ＢＡＰＯＡ）、及び、代表的な殺藻剤である、トリ−ｎ−ブチル−ｎ−ドデシルホスホニウムクロライド（略号：ＴＢＤＰ）、及び、上記で用いたイソチアゾリン系殺藻剤（５−クロロ−２−メチル−４−イソチアゾリン−３−オンと２−メチル−４−イソチアゾリン−３−オンを重量でそれぞれ１０重量％及び３重量％含有する混合剤）（略号：ＣＭＩ）に付いても同様に、殺藻効果が得られた最低添加濃度（ｍｇ／Ｌ）を調べた。これら結果を表２に併せて示す。なお、表２で「１００ｍｇ／Ｌで効果なし」及び「４００ｍｇ／Ｌで効果なし」とは、それぞれ、薬剤を１００ｍｇ／Ｌ、あるいは、４００ｍｇ／Ｌとなるように添加したもの、粒状緑藻の防除効果が得られなかったことを示す。 At the same time, N, N-bis (3-aminopropyl) octylamine (abbreviation: BAPOA) and a representative algicidal agent, tri-n-butyl-n-dodecylphosphonium chloride (abbreviation: TBDP) And the isothiazoline-based algaecides used above (5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one by weight of 10% by weight and 3% by weight, respectively) Similarly, the lowest addition concentration (mg / L) at which an algicidal effect was obtained was also examined for (mixing agent containing%) (abbreviation: CMI). These results are also shown in Table 2. In Table 2, “No effect at 100 mg / L” and “No effect at 400 mg / L” mean that the drug was added to 100 mg / L or 400 mg / L, and control of granular green algae, respectively. Indicates that no effect was obtained.
表２より、本発明に係る粒状緑藻防除剤によればこれら水系の粒状緑藻（Ａ〜Ｌ）のすべてに対して、濃度が２０ｍｇ／Ｌとなるよう添加した場合、充分な防除効果が得られることが理解できる。 From Table 2, according to the granular green algae control agent which concerns on this invention, when it adds so that a density | concentration may be 20 mg / L with respect to all of these aqueous granular green algae (AL), sufficient control effect is acquired. I understand that.
これに対して、その他の薬剤では、粒状緑藻（Ａ〜Ｌ）のすべてに対して、本発明に係る粒状緑藻防除剤よりも高濃度での添加を必要とする。 On the other hand, in another chemical | medical agent, addition with a high density | concentration is required with respect to all the granular green algae (AL) compared with the granular green algae control agent which concerns on this invention.
また、上記粒状緑藻（Ａ〜Ｌ）はイソチアゾリン系殺藻剤が恒常的に添加されていた水系で繁殖したものであり、そのため、これら粒状緑藻は表３に示されるようにイソチアゾリン系殺藻剤に対しては高い耐性を有する。 The granular green algae (A to L) were propagated in an aqueous system to which isothiazoline-based algicides were constantly added. Therefore, these granular green algae are isothiazoline-based algicides as shown in Table 3. It has high resistance to.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009078767A JP5356877B2 (en) | 2009-03-27 | 2009-03-27 | Granular green algae control agent and method for controlling granular green algae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009078767A JP5356877B2 (en) | 2009-03-27 | 2009-03-27 | Granular green algae control agent and method for controlling granular green algae |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010229086A JP2010229086A (en) | 2010-10-14 |
| JP5356877B2 true JP5356877B2 (en) | 2013-12-04 |
Family
ID=43045239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009078767A Active JP5356877B2 (en) | 2009-03-27 | 2009-03-27 | Granular green algae control agent and method for controlling granular green algae |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5356877B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089288A1 (en) * | 2013-12-11 | 2015-06-18 | Arch Chemicals, Inc. | Method of controlling algae in a body of water |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101972620B1 (en) * | 2011-10-27 | 2019-04-25 | 라이온 가부시키가이샤 | Liquid cleaning agent, liquid bleaching composition, and disinfectant composition |
| FR3003129B1 (en) * | 2013-03-14 | 2016-02-26 | Mexel Ind | BIOCIDAL COMPOSITION AND PROCESS FOR TREATING WATER OR SURFACES IN WATER CONTACT |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3247053A (en) * | 1964-03-02 | 1966-04-19 | Commercial Solvents Corp | Inhibiting the growth of algae in water with nu-(2-aminoalkyl) alkylamine |
| JPH1171210A (en) * | 1997-08-28 | 1999-03-16 | Sanai Sekiyu Kk | Industrial antiseptic agent |
| JP5119238B2 (en) * | 2006-04-10 | 2013-01-16 | ジヤンセン・フアーマシユーチカ・ナームローゼ・フエンノートシヤツプ | Combination of 4-bromo-2- (4-chlorophenyl) -5- (trifluoromethyl) -1H-pyrrole-3-carbonitrile and biocidal compound |
-
2009
- 2009-03-27 JP JP2009078767A patent/JP5356877B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015089288A1 (en) * | 2013-12-11 | 2015-06-18 | Arch Chemicals, Inc. | Method of controlling algae in a body of water |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010229086A (en) | 2010-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5227012B2 (en) | Algae inhibitor and method for suppressing algae | |
| US10590282B2 (en) | Identification and characterization of novel corrosion inhibitor molecules | |
| JP2003146817A (en) | Antimicrobial algicidal agent composition, method for killing microbe and alga in water system and method for producing antimicrobial algicidal agent composition | |
| JP6691418B2 (en) | Microbial inhibitor composition and method for inhibiting microorganisms | |
| US20190208774A1 (en) | Water Treatment Composition | |
| JP5356877B2 (en) | Granular green algae control agent and method for controlling granular green algae | |
| JP2012115720A (en) | Biocidal method of circulating water system in open type water cooling tower | |
| JP6478455B2 (en) | Water sterilization method | |
| JP5638825B2 (en) | Algae inhibitor and method for suppressing algae | |
| JP2015212248A (en) | Method for preventing generation of aqueous slime | |
| JP2014176850A (en) | Method for treating open circulation cooling water system | |
| US8778370B2 (en) | Method and composition for inhibiting growth of microorganisms in industrial process waters in the presence of anionic anti-fouling additives | |
| JP2003523370A (en) | How to improve bactericidal activity | |
| JP6057526B2 (en) | Treatment method for open circulating cooling water system | |
| JP3814085B2 (en) | Algae control agent and algae control method | |
| JP5928938B2 (en) | Treatment method for open circulating cooling water system | |
| JP2008247751A (en) | Granular green alga controller and method for controlling granular green alga | |
| JP7057091B2 (en) | Treatment method of open circulation cooling water system | |
| JP5175583B2 (en) | Biofilm release agent and biofilm release method | |
| JP2013158669A (en) | Treatment method for open-circulating cooling water system | |
| JP5356884B2 (en) | Microbial control agent and microorganism control method | |
| JP3400253B2 (en) | Algae controlling agent and algae controlling method | |
| JP2003267812A (en) | Algicide, algicide composition and algicidal method | |
| JP5735328B2 (en) | Microbial control agent and microorganism control method | |
| JP2013014619A (en) | Algae inhibitor and method for inhibiting algae |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120203 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130218 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130312 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130510 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130813 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130829 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5356877 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |