JPH0422494A - Decomposition treatment of discharged water - Google Patents
Decomposition treatment of discharged waterInfo
- Publication number
- JPH0422494A JPH0422494A JP12529390A JP12529390A JPH0422494A JP H0422494 A JPH0422494 A JP H0422494A JP 12529390 A JP12529390 A JP 12529390A JP 12529390 A JP12529390 A JP 12529390A JP H0422494 A JPH0422494 A JP H0422494A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen peroxide
- peracetic acid
- catalyst
- discharged water
- water
- 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
- 238000000354 decomposition reaction Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 18
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims abstract description 44
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000003054 catalyst Substances 0.000 claims abstract description 13
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 6
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 5
- 150000003624 transition metals Chemical class 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract 3
- 229910052697 platinum Inorganic materials 0.000 claims abstract 3
- 239000002351 wastewater Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052763 palladium Inorganic materials 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000010802 sludge Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 235000015099 wheat brans Nutrition 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、食品工業プラントにおけるバイブラインの殺
菌に用いられたり、小麦ふすまや綿などの繊維の漂白剤
として用いられる過酸化水素や過酢酸を含有する排水の
分解処理方法に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention is directed to hydrogen peroxide and peracetic acid, which are used to sterilize vibrine in food industry plants and as bleaching agents for fibers such as wheat bran and cotton. The present invention relates to a method for decomposing wastewater containing .
通常過酸化水素や過酢酸はそれぞれ、過酸化水素は水に
、過酢酸は水と酢酸に分解するため、分解後は毒性はな
くなり、活性汚泥により処理の上、下流に流すことがで
きる。Normally, hydrogen peroxide and peracetic acid decompose into water and peracetic acid into water and acetic acid, respectively, so after decomposition they are no longer toxic and can be treated with activated sludge before being discharged downstream.
従来の上記過酸化水素や過酢酸は排水中の他の有機物と
の接触により分解するようにしていた。Conventionally, hydrogen peroxide and peracetic acid are decomposed by contact with other organic substances in wastewater.
〔発明が解決しようとする課題］
上記従来の分解処理方法では、−度に大量の排水を処理
することができなかった。すなわち、他の有機物との接
触による分解はゆるやかであるため、大Ｈの排水を流入
させた場合、過酸化水素や過酢酸が分解しないで活性汚
泥に流れ込んでしまい、活性汚泥はその毒性によってそ
の機能を失うことになる。[Problems to be Solved by the Invention] The conventional decomposition treatment method described above cannot treat a large amount of wastewater at one time. In other words, decomposition due to contact with other organic substances is slow, so when large H wastewater is introduced, hydrogen peroxide and peracetic acid will flow into the activated sludge without being decomposed, and the activated sludge will deteriorate due to its toxicity. You will lose functionality.
そのため、これまでは大量の水で希釈したり、少量ずつ
流すなどしており、その処理能力が問題だった。そして
その処理がまにあわない場合には化学廃水処理業者に処
理を依頼するなどしていた。For this reason, in the past, the solution had to be diluted with large amounts of water or flushed in small amounts, which caused problems with processing capacity. If the treatment was not suitable, a chemical wastewater treatment company was requested to handle the treatment.
本発明は上記のことにかんがみなされたもので、排水中
の過酸化水素及び／あるいは過酢酸を速やかに水及び水
と酢酸に分解できて、過酸化水素や過酢酸を含む排水を
大量に排圧処理することかできるようにした排水の分解
処理方法を提供することを目的とするものである。The present invention was conceived in consideration of the above-mentioned problems, and is capable of rapidly decomposing hydrogen peroxide and/or peracetic acid in wastewater into water and water and acetic acid, thereby discharging a large amount of wastewater containing hydrogen peroxide and peracetic acid. The object of the present invention is to provide a method for decomposing wastewater that can be subjected to pressure treatment.
上記目的を達成するために、本発明に係る排水の分解処
理方法は、Ｐ ｔ ｓ Ｍ ｎ ＳＣｕ等の遷移金属系
の触媒を充填した触媒反応槽内に、過酸化水素及び／あ
るいは過酢酸を含有する排水を流入し、かつ撹拌する。In order to achieve the above object, the wastewater decomposition treatment method according to the present invention includes hydrogen peroxide and/or peracetic acid in a catalytic reaction tank filled with a transition metal catalyst such as P t s M n SCu. Containing waste water is introduced and stirred.
触媒反応槽内での排水中の過酸化水素や過酢酸は上記触
媒にて水及び水と酢酸に分解される。Hydrogen peroxide and peracetic acid in the waste water in the catalytic reaction tank are decomposed into water and water and acetic acid by the above catalyst.
本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described based on the drawings.
まず第１図に示すように、触媒反応槽１内にＰｔＳＭｎ
５Ｃｕ、Ｐｄ等の遷移金属のうちのイスれか１種類ある
いはこのうちの複数種の触媒２を入れ、そこに過酸化水
素及び／あるいは過酢酸を含有する排水３を流入させて
撹拌機４にて撹拌する。First, as shown in FIG. 1, a PtSMn
5 A catalyst 2 of one or more of transition metals such as Cu and Pd is introduced, and a waste water 3 containing hydrogen peroxide and/or peracetic acid is introduced into the agitator 4. Stir.
上記処理により排水中の過酸化水素や過酢酸が分解され
て水に、あるいは水と酢酸に分解される。Through the above treatment, hydrogen peroxide and peracetic acid in the wastewater are decomposed into water or into water and acetic acid.
第２図、第３図、第４図は本発明の第２、第３、第４の
実施例を示すもので、第２図に示す第２の実施では、撹
拌機のかわりに散気板５を用い、これから発散する気泡
６にて触媒２を撹拌するようにしている。2, 3, and 4 show second, third, and fourth embodiments of the present invention. In the second embodiment shown in FIG. 2, a diffuser plate is used instead of the stirrer. 5 is used, and the catalyst 2 is stirred by bubbles 6 emitted from the gas bubbles 6.
第３図に示す第３の実施例では、流動層型の触媒反応ｔ
ｅｌ’に触媒２を入れ、これの下側から過酸化水素や過
酢酸が含有している排水を流入させるようにしている。In the third embodiment shown in FIG. 3, a fluidized bed type catalytic reaction t
Catalyst 2 is placed in el', and waste water containing hydrogen peroxide and peracetic acid is allowed to flow in from below.
この場合の反応は回分式、連続式のどちらでもよい。The reaction in this case may be either batchwise or continuous.
また第４図に示す第４の実施例では、散気板５を用いた
流動層型の反応処理塔７と排水タンク８とを並置し、排
水を反応処理塔７と排水タンク８とを循環させ、その間
に反応処理塔７内の触媒２にて排水中の過酸化水素や過
酢酸を分解する。In a fourth embodiment shown in FIG. 4, a fluidized bed type reaction treatment tower 7 using a diffuser plate 5 and a waste water tank 8 are arranged side by side, and the waste water is circulated between the reaction treatment tower 7 and the waste water tank 8. During this time, the catalyst 2 in the reaction treatment tower 7 decomposes hydrogen peroxide and peracetic acid in the waste water.
上記第４図に示す第４の実施例による実際の処理を以下
に示す。The actual processing according to the fourth embodiment shown in FIG. 4 will be described below.
反応処理塔７は１００ｇの反応容量のものを用い、これ
にＰｔ／カーボンからなる触媒２を１０ｋｇ充填した。The reaction treatment column 7 used had a reaction capacity of 100 g, and was filled with 10 kg of the catalyst 2 made of Pt/carbon.
この反応処理塔７に２００ｇの容量を有する排水タンク
８より過酢酸を１％及び過酸化水素を２％含有した排水
３を流入循環させた。A waste water 3 containing 1% peracetic acid and 2% hydrogen peroxide was circulated into the reaction treatment tower 7 from a waste water tank 8 having a capacity of 200 g.
その結果、約２時間の循環により排水中の過酢酸濃度は
ほぼゼロとなった。As a result, the peracetic acid concentration in the waste water became almost zero after about 2 hours of circulation.
本発明によれば、排水中の過酸化水素及び／あるいは過
酢酸を速やかに水及び水と酢酸に分解できて、過酸化水
素や過酢酸を含む排水が大量に分解処理される。そして
その後の活性汚泥での処理が可能となり、そのまま下水
に流すことができる。According to the present invention, hydrogen peroxide and/or peracetic acid in wastewater can be rapidly decomposed into water and water and acetic acid, and a large amount of wastewater containing hydrogen peroxide and peracetic acid can be decomposed. Subsequent treatment with activated sludge is then possible, and the waste can be directly flushed into the sewage system.
第１図、第２図、第３図、第４図はそれぞれ本発明の異
なる実施例を示す構成説明図である。
１．１′は触媒反応槽、２は触媒、３は排水、４は撹拌
機、５は散気板、７は反応処理塔、８は排水タンク。FIG. 1, FIG. 2, FIG. 3, and FIG. 4 are configuration explanatory diagrams showing different embodiments of the present invention, respectively. 1.1' is a catalyst reaction tank, 2 is a catalyst, 3 is a waste water, 4 is an agitator, 5 is a diffuser plate, 7 is a reaction treatment tower, and 8 is a waste water tank.
Claims (1)
反応槽内に、過酸化水素及び／あるいは過酢酸を含有す
る排水を流入し、かつ撹拌することを特徴とする排水の
分解処理方法。A wastewater decomposition treatment method characterized by flowing wastewater containing hydrogen peroxide and/or peracetic acid into a catalytic reaction tank filled with a transition metal catalyst such as Pt, Mn, Cu, etc., and stirring the wastewater. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12529390A JPH0422494A (en) | 1990-05-17 | 1990-05-17 | Decomposition treatment of discharged water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12529390A JPH0422494A (en) | 1990-05-17 | 1990-05-17 | Decomposition treatment of discharged water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0422494A true JPH0422494A (en) | 1992-01-27 |
Family
ID=14906500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12529390A Pending JPH0422494A (en) | 1990-05-17 | 1990-05-17 | Decomposition treatment of discharged water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422494A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05253580A (en) * | 1992-03-10 | 1993-10-05 | Agency Of Ind Science & Technol | Treatment of waste water |
| EP0599618A1 (en) * | 1992-11-25 | 1994-06-01 | General Electric Company | Internal passive water recombiner/hydrogen peroxide decomposer for a boiling water reactor |
| EP0599617A1 (en) * | 1992-11-25 | 1994-06-01 | General Electric Company | Internal passive hydrogen peroxide decomposer for a boiling water reactor |
| KR20000036727A (en) * | 2000-03-27 | 2000-07-05 | 김대헌 | Treatment apparatus using the hardly degradable COD removal composition |
| WO2000044675A1 (en) * | 1999-01-29 | 2000-08-03 | Rainer Fuchs | Method of obtaining potable water |
| KR100343972B1 (en) * | 1999-11-25 | 2002-07-24 | 주식회사 유니테크 | Treatment process and the device of waste watrer including hydrogen peroxide |
| WO2006064084A1 (en) * | 2004-12-16 | 2006-06-22 | Kemira Oyj | Process for removing manganese from water |
| WO2016093330A1 (en) * | 2014-12-11 | 2016-06-16 | 田中貴金属工業株式会社 | Waste water treatment device and waste water treatment method |
| CN105817201A (en) * | 2016-05-20 | 2016-08-03 | 张能力 | Method for preparing acetic acid activation sludge-based adsorbent |
| CN105817209A (en) * | 2016-05-20 | 2016-08-03 | 张能力 | Active carbon water treatment composite adsorbent and preparing method thereof |
| CN113209970A (en) * | 2021-05-13 | 2021-08-06 | 哈尔滨工业大学 | Preparation method and application of carbon-based catalyst prepared from excess sludge |
-
1990
- 1990-05-17 JP JP12529390A patent/JPH0422494A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05253580A (en) * | 1992-03-10 | 1993-10-05 | Agency Of Ind Science & Technol | Treatment of waste water |
| EP0599618A1 (en) * | 1992-11-25 | 1994-06-01 | General Electric Company | Internal passive water recombiner/hydrogen peroxide decomposer for a boiling water reactor |
| EP0599617A1 (en) * | 1992-11-25 | 1994-06-01 | General Electric Company | Internal passive hydrogen peroxide decomposer for a boiling water reactor |
| WO2000044675A1 (en) * | 1999-01-29 | 2000-08-03 | Rainer Fuchs | Method of obtaining potable water |
| KR100343972B1 (en) * | 1999-11-25 | 2002-07-24 | 주식회사 유니테크 | Treatment process and the device of waste watrer including hydrogen peroxide |
| KR20000036727A (en) * | 2000-03-27 | 2000-07-05 | 김대헌 | Treatment apparatus using the hardly degradable COD removal composition |
| WO2006064084A1 (en) * | 2004-12-16 | 2006-06-22 | Kemira Oyj | Process for removing manganese from water |
| WO2016093330A1 (en) * | 2014-12-11 | 2016-06-16 | 田中貴金属工業株式会社 | Waste water treatment device and waste water treatment method |
| JP2016112485A (en) * | 2014-12-11 | 2016-06-23 | 田中貴金属工業株式会社 | Device and method for treating liquid waste |
| US10407326B2 (en) | 2014-12-11 | 2019-09-10 | Tanaka Kikinzoku Kogyo K.K. | Waste liquid treatment device and waste liquid treatment method |
| CN105817201A (en) * | 2016-05-20 | 2016-08-03 | 张能力 | Method for preparing acetic acid activation sludge-based adsorbent |
| CN105817209A (en) * | 2016-05-20 | 2016-08-03 | 张能力 | Active carbon water treatment composite adsorbent and preparing method thereof |
| CN113209970A (en) * | 2021-05-13 | 2021-08-06 | 哈尔滨工业大学 | Preparation method and application of carbon-based catalyst prepared from excess sludge |
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