JPH0350102A - Treatment of sodium hypochlorite - Google Patents
Treatment of sodium hypochloriteInfo
- Publication number
- JPH0350102A JPH0350102A JP18700489A JP18700489A JPH0350102A JP H0350102 A JPH0350102 A JP H0350102A JP 18700489 A JP18700489 A JP 18700489A JP 18700489 A JP18700489 A JP 18700489A JP H0350102 A JPH0350102 A JP H0350102A
- Authority
- JP
- Japan
- Prior art keywords
- sodium hypochlorite
- soln
- naclo
- gel
- sodium
- 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.)
- Granted
Links
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000005708 Sodium hypochlorite Substances 0.000 title claims abstract description 42
- 239000003349 gelling agent Substances 0.000 claims abstract description 15
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- -1 alkali metal salt Chemical class 0.000 claims abstract description 8
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 5
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 229920002785 Croscarmellose sodium Polymers 0.000 claims abstract description 4
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 235000010265 sodium sulphite Nutrition 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229940047670 sodium acrylate Drugs 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 1
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NUIURNJTPRWVAP-UHFFFAOYSA-N 3,3'-Dimethylbenzidine Chemical compound C1=C(N)C(C)=CC(C=2C=C(C)C(N)=CC=2)=C1 NUIURNJTPRWVAP-UHFFFAOYSA-N 0.000 description 1
- VLCDUOXHFNUCKK-UHFFFAOYSA-N N,N'-Dimethylthiourea Chemical compound CNC(=S)NC VLCDUOXHFNUCKK-UHFFFAOYSA-N 0.000 description 1
- 108091006629 SLC13A2 Proteins 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000001119 stannous chloride Substances 0.000 description 1
- 235000011150 stannous chloride Nutrition 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、漏洩した次亜塩素酸ナトリウムの処理剤に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a treatment agent for leaked sodium hypochlorite.
次亜塩素酸ナトリウムは、上下水道の水処理や祇・バル
ブ・繊維関係の漂白剤として広く利用されている。特に
、法令により塩素剤の使用が義務づけられている水道水
の消毒については、近年、毒性の強い塩素剤に代えてよ
り安全性の高い次亜塩素酸ナトリウムへの転換が進みつ
つある。Sodium hypochlorite is widely used as a bleaching agent for water treatment, valves, and textiles. In particular, regarding the disinfection of tap water, where the use of chlorine agents is required by law, in recent years there has been a shift to the safer sodium hypochlorite instead of highly toxic chlorine agents.
しかして、使用の増大とともに漏洩等の事故もまた増加
する傾向にある。次亜塩素酸ナトリウムは塩素ガスに比
べれば安全で取扱い易いが、強アルカリ性であり、酸化
作用もあって、付着すると皮膚や衣服を損傷する危険が
ある。それゆえ、万一漏洩した場合は、速やかに処理し
なければならない、ところで、漏出した次亜塩素酸ナト
リウムを処理する場合、そのまま酸を加えて中和すると
塩素ガスが発生して危険である。そこで、例えば日本水
道協会の「次亜塩素酸ナトリウム取扱指針」では、あら
かじめ亜硫酸ナトリウムを加えて次亜塩素酸ナトリウム
を分解し、多量の水で薄めて、残留塩素が検出されない
ことを確認するまでに処理する方法がとられている。However, as usage increases, accidents such as leakage also tend to increase. Sodium hypochlorite is safer and easier to handle than chlorine gas, but it is strongly alkaline and has an oxidizing effect, so there is a risk of damaging skin and clothing if it comes into contact with it. Therefore, in the event of a leak, it must be disposed of immediately. By the way, when disposing of leaked sodium hypochlorite, if you neutralize it by adding acid, it is dangerous because chlorine gas will be generated. Therefore, for example, the Japan Water Works Association's ``Sodium Hypochlorite Handling Guidelines'' requires adding sodium sulfite in advance to decompose sodium hypochlorite, diluting it with a large amount of water, and confirming that no residual chlorine is detected. A method has been adopted to deal with this.
この方法は、次の反応式で示される亜硫酸ナトリウムＮ
ａ ｚｓ ０３の還元作用により、次亜塩素酸ナトリ
ウムＮａＣｌ０を安全な食塩に変えるもものである。This method is based on sodium sulfite N, which is shown by the following reaction formula.
The reducing action of azs 03 converts sodium hypochlorite (NaCl0) into safe salt.
ＮａＣ１０＋ＮａｚＳＯ，−＋ＮａＣ１＋Ｎ ａ 、Ｓ
Ｏ。NaC10+NazSO,-+NaC1+N a , S
O.
しかしながら傾斜地に漏洩した場合などには、漏洩した
次亜塩素酸ナトリウム水溶液に亜硫酸ナトリウムを加え
て撹拌し、両者を均一に混合させて反応させることによ
り漏洩した全ての次亜塩素酸ナトリウムを完全に無害化
する以前に、すなわち両者の反応が終了しないう、ちに
、未反応の次亜塩素酸ナトリウムが流れていき、漏洩範
囲が拡大されてしまうという問題点があった。However, in the case of a leak on a slope, add sodium sulfite to the leaked aqueous sodium hypochlorite solution, stir it, mix the two evenly, and react to completely remove all the leaked sodium hypochlorite. There was a problem in that unreacted sodium hypochlorite flows out before it becomes harmless, that is, before the reaction between the two is completed, and the leakage area is expanded.
そこで本発明は、このような従来の問題点に着目してな
されたものであり、漏洩した次亜塩素酸ナトリウムの水
溶液をあらかじめゲル化することで流失しない状態にし
ておいてから無害化せしめる次亜塩素酸ナトリウムの処
理方法を提供して、上記従来の問題点を解決することを
目的としている。Therefore, the present invention was made by focusing on such conventional problems, and it is possible to make the leaked aqueous solution of sodium hypochlorite into a gel in advance so that it will not be washed away, and then to render it harmless. The present invention aims to solve the above-mentioned conventional problems by providing a method for treating sodium chlorite.
上記目的を達成するため、本発明は、次亜塩素酸ナトリ
ウム水溶液のゲル化剤と、アルカリ金属塩からなるゲル
安定剤とを同時に次亜塩素酸ナトリウムの水溶液中に添
加して該水溶液をゲル化し、その後次亜塩素酸ナトリウ
ムの還元剤を添加する。In order to achieve the above object, the present invention involves simultaneously adding a gelling agent for an aqueous solution of sodium hypochlorite and a gel stabilizer consisting of an alkali metal salt to an aqueous solution of sodium hypochlorite to make the aqueous solution into a gel. and then add the reducing agent of sodium hypochlorite.
上記ゲル化剤は、ポリビニルアルコール／ポリアクリル
酸塩系、デンプン／ポリアクリル酸塩系、橋かけポリア
クリル酸塩系、橋かけポリビニルアルコール系、橋かけ
カルボキシメチルセルロース系またはポリエチレンオキ
サイド変性物などの高吸水性高分子を用いることができ
る。The above-mentioned gelling agent is a polyvinyl alcohol/polyacrylate type, starch/polyacrylate type, cross-linked polyacrylate type, cross-linked polyvinyl alcohol type, cross-linked carboxymethyl cellulose type, or polyethylene oxide modified product. Water-absorbing polymers can be used.
以下、本発明を更に詳細に説明する。The present invention will be explained in more detail below.
本発明に用いられる還元剤は、次亜塩素酸ナトリウムを
還元して無害な塩に変える還元剤であって、無機薬品又
は有機薬品のいずれでもよい。The reducing agent used in the present invention is a reducing agent that reduces sodium hypochlorite into a harmless salt, and may be either an inorganic chemical or an organic chemical.
無機薬品として常に好ましいものは、例えば亜硫酸ナト
リウム、亜硝酸ナトリウム、チオ硫酸ナトリウム、亜硫
酸水素ナトリウム等の亜硫酸塩やチオ硫酸塩や亜硝酸塩
である。又、塩化第一すず。Preferred inorganic chemicals are always sulfites, thiosulfates and nitrites, such as, for example, sodium sulfite, sodium nitrite, sodium thiosulfate, sodium bisulfite. Also, stannous chloride.
硫酸ニッケル、硫酸銅等の重金属塩も利用することがで
きる。Heavy metal salts such as nickel sulfate and copper sulfate can also be used.
有機薬品としては、例えば尿素や、その誘導体であるジ
フェニル尿素、カルバミン酸アンモン。Examples of organic chemicals include urea, its derivatives diphenyl urea, and ammonium carbamate.
チオ尿素、ジメチルチオ尿素などを利用することができ
る。Thiourea, dimethylthiourea, etc. can be used.
また、ゲル化剤とは自重の１００倍以上の吸水力を有す
る高吸水性高分子で、水を注ぐと直ちに吸水、膨潤して
水全体をゲル化させる性質を有するものであり、例えば
アクリル酸ビニルアルコール共重合体などのＰＶＡ／ポ
リアクリル酸塩系やデンプン／ポリアクリル酸塩系のも
の、又はアクリル酸ソーダ重合体など橋かけポリアクリ
ル酸塩系や橋かけＰＶＡ系や橋かけカルボキシメチルセ
ルロース系のもの、又はポリエチレンオキサイド変性物
等が好ましく用いられる。これらのゲル化剤は、１種単
独で、又は２種を混合して用いられる０、
また、ゲル安定剤とは、上記高吸水性高分子が吸水して
形成されたゲル化状態を安定させる機能を有するアルカ
リ金属塩またはアルカリ土類金属塩であり、例えば炭酸
ナトリウム、炭酸カリウム。Gelling agents are highly water-absorbent polymers that have a water-absorbing power of more than 100 times their own weight, and have the property of immediately absorbing water when poured with water, swelling, and gelling the entire water.For example, acrylic acid PVA/polyacrylate-based or starch/polyacrylate-based such as vinyl alcohol copolymer, cross-linked polyacrylate-based, cross-linked PVA-based, or cross-linked carboxymethylcellulose such as sodium acrylate polymer. or polyethylene oxide modified products are preferably used. These gelling agents may be used alone or in combination of two types.In addition, gel stabilizers are agents that stabilize the gelled state formed by the superabsorbent polymer absorbing water. Functional alkali metal salts or alkaline earth metal salts, such as sodium carbonate and potassium carbonate.
等が特に有効に使用できる。これらのゲル安定剤も１種
のみでなく、混合して用いることができる。etc. can be used particularly effectively. These gel stabilizers can be used not only alone, but also in combination.
本発明の次亜塩素酸ナトリウムの処理方法は、漏洩した
次亜塩素酸ナトリウム水溶液に対して、先ずゲル化剤と
ゲル安定剤とを同時に添加する。In the method for treating sodium hypochlorite of the present invention, first, a gelling agent and a gel stabilizer are simultaneously added to a leaked aqueous sodium hypochlorite solution.
具体的には両割の混合物を添加するのがよい。Specifically, it is preferable to add a mixture of both.
これらゲル化剤とゲル安定剤とを散布すると、高吸水性
高分子からなるゲル化剤が急速に水を吸収して膨潤し殆
ど瞬時に次亜塩素酸ナトリウム水溶液をゲル化させる。When these gelling agents and gel stabilizers are sprayed, the gelling agent made of a superabsorbent polymer rapidly absorbs water and swells, almost instantaneously gelling the sodium hypochlorite aqueous solution.
これにより、漏洩した次亜塩素酸ナトリウム水溶液の流
動が阻止され、広い範囲への拡散を防止することができ
る。This prevents the leaked sodium hypochlorite aqueous solution from flowing and prevents it from spreading over a wide area.
こうし、て次亜塩素酸ナトリウム水溶液をゲル化し、次
亜塩素酸ナトリウム水溶液の自由な流動を阻止した後、
次亜塩素酸ナトリウムの還元剤をゲルに添加して撹拌し
混合する。その結果、次亜塩素酸ナトリウムは塩素ガス
を発生することなく還元されて無害な塩になる。In this way, after gelling the sodium hypochlorite aqueous solution and preventing the free flow of the sodium hypochlorite aqueous solution,
Add the sodium hypochlorite reducing agent to the gel and stir to mix. As a result, sodium hypochlorite is reduced to a harmless salt without producing chlorine gas.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
〔実施例１〕
工業用次亜塩素酸ナトリウム水溶液（有効塩素１２％）
１０１を５００ｘ５００ｘ２００Ｈの容器に入れて試料
とした。[Example 1] Industrial sodium hypochlorite aqueous solution (available chlorine 12%)
101 was placed in a 500x500x200H container and used as a sample.
この試料に対して、アクリル酸ナトリム重合体からなる
ゲル化剤８００ｇと、ゲル安定剤としての炭酸ナトリウ
ム８００ｇとの混合物を添加したところ、次亜塩素酸ナ
トリウム水溶液は直ちにゲル化した。その後、ゲル中に
次亜塩素酸ナトリウムの還元剤としてチオ硫酸ナトリウ
ム８００ｇを添加して撹拌し、次亜塩素酸ナトリウムの
下記の還元反応を行わせた。When a mixture of 800 g of a gelling agent made of a sodium acrylate polymer and 800 g of sodium carbonate as a gel stabilizer was added to this sample, the aqueous sodium hypochlorite solution immediately gelled. Thereafter, 800 g of sodium thiosulfate as a reducing agent for sodium hypochlorite was added to the gel and stirred to carry out the following reduction reaction of sodium hypochlorite.
４ Ｎ ａ ＣＩ Ｏ＋ Ｎ ａ ｚ Ｓ ｔ Ｏｘ
＋ ２ Ｎ ａ ＯＨ＝ ２ Ｎ ａ ｚ Ｓ Ｏａ
＋ ４ Ｎ ａ Ｃ１＋ Ｈ２０処理液の残留塩素をオ
ルトトリジン法により定量したところ、残留塩素は全く
認められず処理は完全であった。4 N a CI O+ N az S t Ox
+ 2 N a OH= 2 N az S Oa
When the residual chlorine in the + 4 N a C1 + H20 treated solution was determined by the orthotolidine method, no residual chlorine was observed and the treatment was complete.
〔実施例２〕
同様の試料に対して、ポリエチレンオキサイド変性物か
らなるゲル化剤８００ｇと、ゲル安定剤としての炭酸ナ
トリウム６００ｇとの混合物を添加したところ、次亜塩
素酸ナトリウム水溶液は直ちにゲル化した。その後、ゲ
ル中に次亜塩素酸ナトリウムの還元剤として亜硫酸水素
ナトリウム６００ｇを添加して撹拌し、次亜塩素酸ナト
リウムの還元反応を行わせた。処理液の残留塩素は全く
認められず処理は完全であった。[Example 2] When a mixture of 800 g of a gelling agent made of a modified polyethylene oxide and 600 g of sodium carbonate as a gel stabilizer was added to a similar sample, the sodium hypochlorite aqueous solution immediately gelled. did. Thereafter, 600 g of sodium bisulfite was added as a reducing agent for sodium hypochlorite into the gel and stirred to perform a reduction reaction of sodium hypochlorite. No residual chlorine was observed in the treatment solution, and the treatment was complete.
以上説明したように、本発明によれば、次亜塩素酸ナト
リウム水溶液のゲル化剤と、アルカリ金属塩からなるゲ
ル安定剤とを同時に次亜塩素酸ナトリウムの水溶液中に
添加して該水溶液をゲル化し、その後次亜塩素酸ナトリ
ウムの還元剤を添加する。そのため、漏洩した次亜塩素
酸ナトリウムの水溶液が完全に無害化される以前に未反
応の次亜塩素酸ナトリウムが流出して、漏洩範囲が拡大
されてしまうという事態を防止できるという効果が得ら
れる。As explained above, according to the present invention, a gelling agent for an aqueous solution of sodium hypochlorite and a gel stabilizer made of an alkali metal salt are simultaneously added to an aqueous solution of sodium hypochlorite. Gel and then add the reducing agent of sodium hypochlorite. Therefore, it is possible to prevent a situation where unreacted sodium hypochlorite leaks out before the leaked aqueous solution of sodium hypochlorite is completely rendered harmless, and the leakage range is expanded. .
Claims (1)
カリ金属塩からなるゲル安定剤とを同時に次亜塩素酸ナ
トリウムの水溶液中に添加して該水溶液をゲル化し、そ
の後次亜塩素酸ナトリウムの還元剤を添加することを特
徴とする次亜塩素酸ナトリウムの処理方法。（２）ゲル
化剤は、ポリビニルアルコール／ポリアクリル酸塩系、
デンプン／ポリアクリル酸塩系、橋かけポリアクリル酸
塩系、橋かけポリビニルアルコール系、橋かけカルボキ
シメチルセルロース系またはポリエチレンオキサイド変
性物などの高吸水性高分子である請求項（１）記載の次
亜塩素酸ナトリウムの処理方法。(1) A gelling agent for an aqueous sodium hypochlorite solution and a gel stabilizer made of an alkali metal salt are simultaneously added to an aqueous solution of sodium hypochlorite to gel the aqueous solution, and then the sodium hypochlorite A method for treating sodium hypochlorite, which comprises adding a reducing agent. (2) Gelling agent is polyvinyl alcohol/polyacrylate type,
The hypodermic polymer according to claim (1), which is a highly water-absorbing polymer such as starch/polyacrylate-based, cross-linked polyacrylate-based, cross-linked polyvinyl alcohol-based, cross-linked carboxymethyl cellulose-based, or polyethylene oxide modified product. How to treat sodium chlorate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18700489A JPH0350102A (en) | 1989-07-19 | 1989-07-19 | Treatment of sodium hypochlorite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18700489A JPH0350102A (en) | 1989-07-19 | 1989-07-19 | Treatment of sodium hypochlorite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0350102A true JPH0350102A (en) | 1991-03-04 |
| JPH0574522B2 JPH0574522B2 (en) | 1993-10-18 |
Family
ID=16198523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18700489A Granted JPH0350102A (en) | 1989-07-19 | 1989-07-19 | Treatment of sodium hypochlorite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350102A (en) |
-
1989
- 1989-07-19 JP JP18700489A patent/JPH0350102A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0574522B2 (en) | 1993-10-18 |
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