JPH07956A - Sewage purifying method - Google Patents
Sewage purifying methodInfo
- Publication number
- JPH07956A JPH07956A JP7105893A JP7105893A JPH07956A JP H07956 A JPH07956 A JP H07956A JP 7105893 A JP7105893 A JP 7105893A JP 7105893 A JP7105893 A JP 7105893A JP H07956 A JPH07956 A JP H07956A
- Authority
- JP
- Japan
- Prior art keywords
- water
- washing
- sewage
- washing tank
- org
- 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.)
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、工業用水や生活用水
等の汚水浄化方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for purifying sewage such as industrial water and domestic water.
【０００２】[0002]
【従来の技術】近年、フロンによるオゾン層破壊の問題
から、フロンを使用しないで油加工部品を洗浄する装置
が要求されている。水による洗浄は、安全性の面から実
用化が急速に進みつつあるが、水を用いた洗浄装置にお
ける水洗水には、被洗浄物に付着した油分、洗剤、塩
類、微粒子等が持ち込まれて除々に濃縮するため水洗の
効果が弱くなる。そこで、図２および図３に示すような
洗浄装置の水浄化システムに水洗水を循環通水させて水
を浄化するようにしている。2. Description of the Related Art In recent years, due to the problem of ozone layer depletion due to CFCs, an apparatus for cleaning oil-processed parts without using CFCs has been required. Washing with water is rapidly being put to practical use from the viewpoint of safety, but the washing water in a washing device using water carries oil, detergent, salts, fine particles, etc. adhering to the object to be washed. The effect of washing with water becomes weaker as it is gradually concentrated. Therefore, the wash water is circulated through the water purification system of the cleaning device as shown in FIGS. 2 and 3 to purify the water.
【０００３】図２に示す洗浄装置と水浄化システムにお
いて、21は被洗浄物を収納した容器、22は移送ライン、
23は洗浄槽、24は第１の水洗槽、25は第２水洗槽、26は
第３水洗槽であって、前記被洗浄物を収納した容器21を
移送ライン22を介して順次各槽に浸漬して洗浄する。前
記第１水洗槽24には循環ライン27が設けてあって、この
循環ライン27に循環ポンプ28、油水分離装置29、第１の
バルブ30、第２のバルブ31が挿設してあり、第２のバル
ブ31に排水ライン32を接続している。図中33は補給水ラ
インである。前記第２水洗槽25と第３水洗槽26との間に
水洗水循環ライン34を設け、このライン34に循環ポンプ
35、活性炭装置36、イオン交換装置37、および精密濾過
装置38を挿設している。図中39は連結管である。In the cleaning apparatus and the water purification system shown in FIG. 2, 21 is a container containing the object to be cleaned, 22 is a transfer line,
23 is a washing tank, 24 is a first water washing tank, 25 is a second water washing tank, and 26 is a third water washing tank. A container 21 containing the object to be cleaned is sequentially transferred to each tank via a transfer line 22. Immerse and wash. A circulation line 27 is provided in the first washing tank 24, and a circulation pump 28, an oil / water separator 29, a first valve 30, and a second valve 31 are inserted in the circulation line 27. The drain line 32 is connected to the second valve 31. In the figure, 33 is a makeup water line. A washing water circulation line 34 is provided between the second washing tank 25 and the third washing tank 26, and a circulation pump is provided in this line 34.
35, an activated carbon device 36, an ion exchange device 37, and a microfiltration device 38 are inserted. In the figure, 39 is a connecting pipe.
【０００４】上記構成の水浄化システムは、洗浄槽23内
で脱脂処理された被洗浄物を第１水洗槽24内で第１次水
洗を行なうため油分や洗剤が多く持ち込まれているの
で、油水分離装置29により水洗水を浄化して還流し、そ
の一部を第２のバルブを介して排水ライン32より排水す
る。そして、排水した水洗水を補給するための補給水ラ
イン33より清浄水（例えば純水）を補給して汚水の濃縮
を抑制している。一方、第２水洗槽25と第３水洗槽26は
連結管39を介して連通しており、水洗水循環ライン34の
循環ポンプ35の駆動により、第２水洗槽25内の水を活性
炭装置36、イオン交換装置37および精密濾過装置38内を
通水し浄化水として第３水洗槽26内に還流するようにし
ている。しかしながら、この水浄化システムでは、多量
の排水が出るため補給水が必要となり水費用がかかると
ともに、排水に含まれている洗剤が公害問題となり改善
が求められている。In the water purification system having the above-mentioned structure, since the object to be cleaned degreased in the cleaning tank 23 is subjected to the first water cleaning in the first water cleaning tank 24, a large amount of oil and detergent are brought in. The separation device 29 purifies the wash water and recirculates it, and a part of it is drained from the drain line 32 through the second valve. Then, clean water (for example, pure water) is replenished from the replenishing water line 33 for replenishing the drained wash water to suppress the concentration of sewage. On the other hand, the second water washing tank 25 and the third water washing tank 26 communicate with each other through a connecting pipe 39, and the water in the second water washing tank 25 is activated by driving the circulation pump 35 of the water washing water circulation line 34. The ion exchange device 37 and the microfiltration device 38 are allowed to pass through the water, and the purified water is returned to the third washing tank 26. However, in this water purification system, a large amount of drainage is generated, so make-up water is required and water cost is required, and the detergent contained in the drainage is a pollution problem and is required to be improved.
【０００５】図３は図２にかわる従来の水浄化システム
であって、第１水洗槽24と第２水洗槽25および第３水洗
槽26をそれぞれ連結管39で接続し、第１水洗槽24と第３
水洗槽26との間に水洗水循環ライン34を設け、このライ
ン34に循環ポンプ35、油水分離装置29、活性炭装置36、
イオン交換装置37および精密濾過装置38を挿設した構成
としている。尚、図２と同一部材には同一番号を付し、
重複する説明は省略する。即ち、図３に示す水浄化シス
テムは、水洗水を完全循環させるため洗剤等の有機分を
活性炭装置36に吸着させて浄化するので多量の活性炭が
必要となり、コストが高く経済性に問題がある。FIG. 3 shows a conventional water purification system which replaces FIG. 2, in which the first washing tank 24, the second washing tank 25 and the third washing tank 26 are connected by connecting pipes 39, respectively. And the third
A washing water circulating line 34 is provided between the washing tank 26 and the washing tank 26, and a circulation pump 35, an oil / water separator 29, an activated carbon device 36,
An ion exchange device 37 and a microfiltration device 38 are inserted. The same members as those in FIG. 2 are designated by the same reference numerals,
A duplicate description will be omitted. That is, in the water purification system shown in FIG. 3, since the washing water is completely circulated, the organic matter such as a detergent is adsorbed to the activated carbon device 36 to be purified, so that a large amount of activated carbon is required, resulting in high cost and economical problems. ..
【０００６】[0006]
【発明が解決しようとする課題】この発明は、上記問題
点に鑑み、有機物分解装置と脱気装置を挿入し、汚水を
効果的に浄化する汚水浄化方法を提供することを目的と
するものである。SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a sewage purification method for effectively purifying sewage by inserting an organic substance decomposing device and a deaerating device. is there.
【０００７】[0007]
【課題を解決するための手段】即ち、この発明は、工業
用水や生活用水等の汚水を浄化する装置において、少な
くとも有機物分解装置と脱気装置を順次配設し、前記有
機物分解装置で汚水中の有機分を酸化分解し、それに伴
い発生する気体を前記脱気装置で脱気除去することを特
徴としている。That is, the present invention is an apparatus for purifying sewage such as industrial water and household water, in which at least an organic substance decomposing device and a deaerating device are sequentially arranged, and the organic substance decomposing device is used to sewage water. The organic component is oxidatively decomposed, and the gas generated thereby is deaerated and removed by the deaeration device.
【０００８】[0008]
【作用】この発明によれば、汚水中に含まれている有機
分を有機物分解装置で酸化分解し、それに伴い発生する
気体を脱気装置で脱気除去することができる。According to the present invention, the organic matter contained in wastewater can be oxidatively decomposed by the organic substance decomposing device, and the gas generated thereby can be deaerated and removed by the deaeration device.
【０００９】[0009]
【実施例】以下、この発明の実施例を図面に基づいて詳
細に説明する。図１は、この発明を実施した洗浄装置Ａ
と水浄化システムＢの各装置の配置を示す説明図であ
る。前記洗浄装置Ａは、洗浄槽１と連結管７により連通
している第１水洗槽２、第２水洗槽３、第３水洗槽４お
よび被洗浄物（以下ワークと呼ぶ）を移送する移送ライ
ン５より構成されていて、この移送ライン５に適宜の間
隔でワークを収納した容器６を吊着し、前記洗浄槽１お
よび各水洗槽２，３，４内に順次ワークを浸漬して洗浄
するようにしている。Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a cleaning apparatus A embodying the present invention.
It is explanatory drawing which shows arrangement | positioning of each apparatus of the water purification system B. The cleaning device A is a transfer line for transferring a first water washing tank 2, a second water washing tank 3, a third water washing tank 4 and an object to be cleaned (hereinafter referred to as a work), which communicates with the cleaning tank 1 through a connecting pipe 7. 5, a container 6 containing work pieces is suspended from the transfer line 5 at appropriate intervals, and the work pieces are sequentially immersed in the cleaning tank 1 and the washing tanks 2, 3 and 4 for cleaning. I am trying.
【００１０】前記水浄化システムＢは、第１水洗槽２と
第３水洗槽４との間に水洗水循環ライン８を設け、この
水洗水循環ライン８の第１水洗槽２側の所定位置に循環
ポンプ９を設け、次いで油水分離装置10を配設し、次
に、この発明に係る有機物分解装置11（紫外線有機物分
解装置、オゾン酸化装置等）および脱気装置12をそれぞ
れ配設し、つづいて、活性炭装置13、イオン交換装置1
4、精密濾過装置15を順次配設した構成としている。図
中11ａは、有機物分解装置11へ過酸化水素を注入する注
入装置である。In the water purification system B, a washing water circulation line 8 is provided between the first washing tank 2 and the third washing tank 4, and a circulation pump is provided at a predetermined position on the first washing tank 2 side of the washing water circulation line 8. 9, and then an oil / water separator 10 is provided, and then an organic substance decomposing device 11 (ultraviolet organic substance decomposing device, ozone oxidizing device, etc.) and a degassing device 12 according to the present invention are respectively arranged, and subsequently, Activated carbon device 13, ion exchange device 1
4. The microfiltration device 15 is arranged in sequence. In the figure, 11a is an injection device for injecting hydrogen peroxide into the organic substance decomposing device 11.
【００１１】有機物分解装置11は、例えば、酸化剤とし
て過酸化水素を使用し、過酸化水素と紫外線の作用によ
る強力な酸化力で、水洗水中の有機物を酸化分解させる
装置である。その他、オゾンの強力な酸化力で有機物を
酸化分解させるオゾン酸化装置を用いることもできる。
又、脱気装置12は、前記有機物分解装置11で酸化分解さ
せた水洗水を、脱気モジュール内に通水し、その通水過
程において前記脱気モジュール内を真空引きして水洗水
中の溶存気体（酸素、炭酸ガス等）を脱気除去する装置
である。この種の脱気装置12においては、真空引き処理
のための手段として構造が簡単で安価な水封式真空ポン
プ（図示省略）が用いられている。The organic substance decomposing device 11 is, for example, a device which uses hydrogen peroxide as an oxidant and oxidizes and decomposes organic substances in the rinsing water with a strong oxidizing power by the action of hydrogen peroxide and ultraviolet rays. In addition, an ozone oxidizer that oxidizes and decomposes organic substances by the strong oxidizing power of ozone can be used.
Further, the degassing device 12 passes the wash water oxidatively decomposed by the organic substance decomposing device 11 into the degassing module, and in the process of passing water, the degassing module is evacuated to dissolve in the washing water. This is a device for degassing and removing gas (oxygen, carbon dioxide, etc.). In this type of deaerator 12, a water-sealed vacuum pump (not shown), which has a simple structure and is inexpensive, is used as a means for vacuuming.
【００１２】次に、この発明の水浄化システムＢの作用
を説明する。前記洗浄槽１（中性洗剤液）内で脱脂処理
されたワークを第１水洗槽２内で第１次水洗をするた
め、ワークに付着した油分、洗剤、塩類、微粒子等が第
１水洗槽２内の水洗水に混入する。また、第２第３の水
洗槽３，４からオーバーフローした汚水が連結管７を介
して流入する。そこで、水洗水循環ライン８に配置した
循環ポンプ９を駆動し、第１水洗槽２内の水洗水を循環
ライン８に配設した各装置内を通水し、浄化水として第
３水洗槽４内へ還流させる。Next, the operation of the water purification system B of the present invention will be described. Since the work degreased in the cleaning tank 1 (neutral detergent solution) is subjected to the first water washing in the first water washing tank 2, oil, detergent, salts, fine particles, etc. adhering to the work are removed in the first water washing tank. Mix in the wash water in 2. Further, sewage overflowing from the second and third washing tanks 3 and 4 flows in through the connecting pipe 7. Therefore, the circulation pump 9 arranged in the washing water circulation line 8 is driven to pass the washing water in the first washing tank 2 through the respective devices arranged in the circulation line 8, and as the purified water in the third washing tank 4 Reflux to.
【００１３】即ち、油水分離装置10は、水洗水中の油分
を分離して次の有機物分解装置11へ送水する。有機物分
解装置11は、残存する少量の油分と洗剤を酸化分解して
脱気装置12へ送水し、脱気装置12は、酸化分解に伴い発
生する炭酸ガスを水洗水中に溶存する酸素とともに、脱
気モジュール内で真空引きにより脱気除去する。そし
て、より浄化するため次の活性炭装置13内を通水する過
程で、残余の油分、洗剤を活性炭に吸着させる。次に水
洗水に混入している塩類を除去するイオン交換装置14内
を通水し、最後に精密濾過装置15で水洗水中の微粒子を
除去し完全な浄化水として第３水洗槽４内へ還流する。That is, the oil / water separator 10 separates the oil component in the rinsing water and sends the separated water to the next organic substance decomposer 11. The organic matter decomposing device 11 oxidatively decomposes a small amount of residual oil and detergent and sends the water to the degassing device 12, and the degassing device 12 desorbs carbon dioxide gas generated by oxidative decomposition together with oxygen dissolved in the wash water. Degas by vacuuming in the air module. Then, in the next process of passing water through the activated carbon device 13 for further purification, the residual oil and the detergent are adsorbed on the activated carbon. Next, water is passed through the ion exchange device 14 for removing salts mixed in the wash water, and finally, the fine particles in the wash water are removed by the microfiltration device 15 to be refluxed into the third wash tank 4 as complete purified water. To do.
【００１４】上記実施例は、洗浄装置の水浄化システム
に適用したが、この汚水浄化方法は、上記実施例に限定
されるものでなく、例えば生活用水等の汚水処理装置等
にも適用することができる。Although the above-described embodiment is applied to the water purification system of the cleaning device, this sewage purification method is not limited to the above-described embodiment, and may be applied to a sewage treatment device for domestic water, for example. You can
【００１５】[0015]
【発明の効果】以上説明したように、この発明は、有機
物分解装置と脱気装置を配設したので、次のような効果
を得ることができる。 （１）ランニングコストを抑えた経済的な汚水処理方法
を提供することができる。 （２）水洗水中の有機物を酸化分解することにより発生
する炭酸ガスを、溶存酸素とともに脱気装置で脱気除去
するので、活性炭装置を設ける場合は活性炭の使用量を
低減することができる。又、イオン交換装置を設ける場
合はイオン交換装置の再生頻度が少なくなり経費の節約
ができる。 （３）水洗水中の溶存酸素を除去したので、被洗浄物の
錆発生を防止することができる。 （４）水洗水を循環使用するので排水量を低減できる。As described above, according to the present invention, since the organic substance decomposing device and the deaerating device are provided, the following effects can be obtained. (1) It is possible to provide an economical sewage treatment method with reduced running costs. (2) Since the carbon dioxide gas generated by the oxidative decomposition of the organic matter in the wash water is deaerated and removed by the deaerator together with the dissolved oxygen, the amount of the activated carbon used can be reduced when the activated carbon device is provided. Further, when the ion exchange device is provided, the frequency of regeneration of the ion exchange device is reduced and the cost can be saved. (3) Since dissolved oxygen in the wash water is removed, it is possible to prevent rusting of the object to be cleaned. (4) Since the wash water is circulated, the amount of drainage can be reduced.
【図１】この発明を実施した洗浄装置と水浄化システム
の各装置の配置を示す説明図である。FIG. 1 is an explanatory diagram showing the arrangement of a cleaning device and a water purification system according to the present invention.
【図２】従来の洗浄装置と水浄化システムの各装置の配
置を示す説明図である。FIG. 2 is an explanatory view showing an arrangement of each device of a conventional cleaning device and a water purification system.
【図３】図２にかわる従来の洗浄装置と水浄化システム
の各装置の配置を示す説明図である。FIG. 3 is an explanatory diagram showing an arrangement of respective devices of a conventional cleaning device and a water purification system which replaces FIG.
１…洗浄槽 ２…水洗槽 ３…水洗槽 ４…水洗槽 ６…容器 ８…水洗水循環ライン ９…循環ポンプ 10…油水分離装置 11…有機物分解装置 12…脱気装置 13…活性炭装置 14…イオン交換装置 15…精密濾過装置 1 ... Washing tank 2 ... Washing tank 3 ... Washing tank 4 ... Washing tank 6 ... Vessel 8 ... Exchange device 15 ... Microfiltration device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西田 秀來 千葉県茂原市早野3300番地 株式会社日立 製作所電子デバイス事業部内 (72)発明者 清水 啓一 東京都千代田区大手町１丁目７番２号サン ケイビル別館４Ｆ 日本ウォーターシステ ム株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideki Nishida 3300 Hayano, Mobara-shi, Chiba Hitachi, Ltd. Electronic Devices Division (72) Inventor Keiichi Shimizu 1-7-2 Otemachi, Chiyoda-ku, Tokyo Sun Kei Building Annex 4F Japan Water System Co., Ltd.
Claims (2)
装置において、少なくとも有機物分解装置と脱気装置を
順次配設し、前記有機物分解装置で汚水中の有機分を酸
化分解し、それに伴い発生する気体の一部を前記脱気装
置で脱気除去することを特徴とする汚水浄化方法。1. A device for purifying sewage such as industrial water and domestic water, in which at least an organic substance decomposing device and a deaerating device are sequentially arranged, and the organic substance in the sewage water is oxidatively decomposed by the organic substance decomposing device. A method for purifying sewage, characterized in that a part of the generated gas is deaerated and removed by the deaeration device.
設け、この洗浄槽と水洗槽に被洗浄物を収納した容器を
順次浸漬して洗浄する洗浄装置において、 前記水洗槽内の水洗水を循環浄化するため、水洗槽から
の出口と水洗槽への入口との間に少なくとも有機物分解
装置と脱気装置を順次配設し、水洗水を前記各装置内を
通水させて水洗槽内に還流させることを特徴とする請求
項１に記載の汚水浄化方法。2. A cleaning apparatus in which a cleaning tank and a water washing tank are provided in a transfer path of an object to be cleaned, and a container accommodating the object to be cleaned is sequentially dipped in the cleaning tank and the water washing tank to clean, In order to circulate and purify the wash water, at least an organic substance decomposing device and a deaerator are sequentially arranged between the outlet from the water washing tank and the inlet to the water washing tank, and the washing water is passed through each of the above devices to wash the water. The wastewater purification method according to claim 1, wherein the wastewater is recycled into the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7105893A JPH07956A (en) | 1993-03-05 | 1993-03-05 | Sewage purifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7105893A JPH07956A (en) | 1993-03-05 | 1993-03-05 | Sewage purifying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07956A true JPH07956A (en) | 1995-01-06 |
Family
ID=13449547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7105893A Pending JPH07956A (en) | 1993-03-05 | 1993-03-05 | Sewage purifying method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07956A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008114613A1 (en) * | 2007-03-16 | 2008-09-25 | Kurita Water Industries Ltd. | Method and apparatus for removing organic matters |
| JP2009220015A (en) * | 2008-03-17 | 2009-10-01 | Railway Technical Res Inst | Method for treating washing wastewater containing chlorine-containing organic compound |
| JP5936743B1 (en) * | 2015-05-13 | 2016-06-22 | 株式会社日立製作所 | Organic substance decomposition apparatus and organic substance decomposition method |
| JP2016209849A (en) * | 2015-05-13 | 2016-12-15 | 株式会社日立製作所 | Organic material decomposition apparatus and organic material decomposition method |
| JP2017221927A (en) * | 2016-06-17 | 2017-12-21 | 株式会社日立製作所 | Organic substance decomposition apparatus and organic substance decomposition method |
-
1993
- 1993-03-05 JP JP7105893A patent/JPH07956A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008114613A1 (en) * | 2007-03-16 | 2008-09-25 | Kurita Water Industries Ltd. | Method and apparatus for removing organic matters |
| JP2008229417A (en) * | 2007-03-16 | 2008-10-02 | Kurita Water Ind Ltd | Method and apparatus for organic matter removal |
| JP2009220015A (en) * | 2008-03-17 | 2009-10-01 | Railway Technical Res Inst | Method for treating washing wastewater containing chlorine-containing organic compound |
| JP5936743B1 (en) * | 2015-05-13 | 2016-06-22 | 株式会社日立製作所 | Organic substance decomposition apparatus and organic substance decomposition method |
| JP2016209849A (en) * | 2015-05-13 | 2016-12-15 | 株式会社日立製作所 | Organic material decomposition apparatus and organic material decomposition method |
| JP2017221927A (en) * | 2016-06-17 | 2017-12-21 | 株式会社日立製作所 | Organic substance decomposition apparatus and organic substance decomposition method |
| WO2017217005A1 (en) * | 2016-06-17 | 2017-12-21 | 株式会社日立製作所 | Organic matter-degrading apparatus and organic matter-degrading method |
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