JPH0524815A - Method for thermal regeneration of active carbon - Google Patents

Method for thermal regeneration of active carbon

Info

Publication number
JPH0524815A
JPH0524815A JP3184366A JP18436691A JPH0524815A JP H0524815 A JPH0524815 A JP H0524815A JP 3184366 A JP3184366 A JP 3184366A JP 18436691 A JP18436691 A JP 18436691A JP H0524815 A JPH0524815 A JP H0524815A
Authority
JP
Japan
Prior art keywords
active carbon
cartridge
water
activated carbon
hot air
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
Application number
JP3184366A
Other languages
Japanese (ja)
Inventor
Juichi Nishikawa
壽一 西川
Hideo Iwata
秀雄 岩田
Mikio Shinagawa
幹夫 品川
Norihiko Kawamura
典彦 河村
Atsuko Kishimoto
篤子 岸本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3184366A priority Critical patent/JPH0524815A/en
Publication of JPH0524815A publication Critical patent/JPH0524815A/en
Pending legal-status Critical Current

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  • Carbon And Carbon Compounds (AREA)

Abstract

PURPOSE:To simply and efficiently regenerate heat at a low temperature without consuming active carbon by treating the active carbon at different temperatures in many stages using heated air or steam. CONSTITUTION:A filter cartridge 6 and an active carbon cartridge 6 surrounded with a heat insulating material 9 are arranged at the back of a body 1. Tap water taken in from an inflow port 2 is then passed through the aforementioned filter cartridge 5 to remove iron rust, water scale, etc. The resultant tap water is subsequently passed through solenoid valves (8a) and (8b) and the active carbon cartridge 6 as indicated by arrows of solid lines to adsorb and remove trihalomethanes, musty smell, etc. The water is then discharged from a discharge port 4. In the aforementioned water purifier, hot air produced in a hot air producer 7 is passed through the solenoid valves (8a) and (8b) and the active carbon cartridge 6 as indicated by arrows of broken lines and subsequently discharged from a vent port 3. In the process, the above-mentioned hot air is kept at 80-120 deg.C temperature to sublime and remove musty smell and then regulate to 130-200 deg.C to eliminate the trihalomethanes, etc. Thereby, the active carbon cartridge 6 can be regenerated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、活性炭の再生方法に関
するものであり、特に浄水器に使用される活性炭の再生
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 regenerating activated carbon, and more particularly to regeneration of activated carbon used in water purifiers.

【0002】[0002]

【従来の技術】水処理に使われる活性炭の再生は被吸着
質を分解または酸化して除去する方法が常識的である。
そして、酸化、分解の方法としては次のような方法がお
もに用いられる。 (1) 高温での酸化性ガス(酸素、水蒸気、二酸化炭
素)による熱分解 (2) 微生物による酸化分解 (3) 酸化剤(二酸化水素、オゾン)を用いた酸化 (1)の方法が一般的に採用されているが、800〜1
000°Cの高温で処理するため、活性炭を消耗すると
いう欠点がある。
2. Description of the Related Art It is common practice to regenerate activated carbon used in water treatment by decomposing or oxidizing an adsorbate to remove it.
And as a method of oxidation and decomposition, the following methods are mainly used. (1) Thermal decomposition by oxidizing gas (oxygen, water vapor, carbon dioxide) at high temperature (2) Oxidative decomposition by microorganisms (3) Oxidation using oxidant (hydrogen dioxide, ozone) (1) method is common It has been adopted for 800-1
Since the treatment is performed at a high temperature of 000 ° C, there is a drawback that the activated carbon is consumed.

【0003】(2)の方法は溶存酸素が低下すると嫌気
性微生物が増加し、目詰まりを起こしたり、また、流水
中に硫酸基などがあると流出水中に硫化物が現れること
がある。また、流入水中に溶存酸素が十分存在すると好
気性微生物が繁殖し、目詰まりを起こすため微生物の制
御が難しいという欠点がある。
In the method (2), when dissolved oxygen decreases, anaerobic microorganisms increase, causing clogging, and when there are sulfate groups in the running water, sulfide may appear in the running water. Further, when dissolved oxygen is sufficiently present in the inflow water, aerobic microorganisms propagate and clogging occurs, which makes it difficult to control the microorganisms.

【0004】(3)の方法はJohnson ら(USPHS,Dept.H
EW,AWTR-11,1964 )により、下水3次処理に用いられた
活性炭の二酸化水素(H2 2 )を含め9種類の酸化剤
による再生が報告されている。しかし、反応の選択性が
かなり問題になり酸化に対して安定な有機物が残存する
ので、第1回再生で71%の吸着能力の回復をみたもの
の第2回、第3回再生ではそれぞれ50%、20%とな
り、再生回数が増えると吸着能力が低下するという欠点
があった。
The method (3) is performed by Johnson et al. (USPHS, Dept. H).
EW, AWTR-11, 1964) has reported that regeneration of activated carbon used for tertiary treatment of sewage with nine kinds of oxidizing agents including hydrogen dioxide (H 2 O 2 ). However, since the selectivity of the reaction becomes a serious problem and organic substances that are stable against oxidation remain, the recovery of the adsorption capacity was 71% in the first regeneration, but it was 50% in the second and third regenerations. However, there is a drawback that the adsorption capacity decreases as the number of regeneration times increases.

【0005】[0005]

【発明が解決しようとする課題】本発明は、以上の欠点
を解決するためになされたもので最も操作し易い熱再生
を用い、しかも活性炭の消耗も無く再生ができるように
活性炭の再生を低温で行うことを目的とする。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and uses heat regeneration which is the easiest to operate, and the regeneration of activated carbon is performed at low temperature so that regeneration can be performed without exhaustion of activated carbon. Intended to be done in.

【0006】[0006]

【課題を解決するための手段】本発明の要旨とするとこ
ろは、80〜120°Cの加熱空気または水蒸気を活性
炭に通気した後、130〜200°Cの加熱空気または
水蒸気を活性炭に通気することを特徴とする活性炭の熱
再生方法である。
SUMMARY OF THE INVENTION The gist of the present invention is that heated air or steam at 80 to 120 ° C is passed through activated carbon, and then heated air or steam at 130 to 200 ° C is passed through activated carbon. It is a method for regenerating heat of activated carbon.

【0007】本発明では浄水器に利用される活性炭の再
生を行おうとしている。上水中に含まれる物質で除去す
べき物質として、塩素臭、かび臭、トリハロメタン、鉄
錆、有機物質があるが飲料水として特に問題になるのは
トリハロメタンとかび臭である。
In the present invention, the activated carbon used in the water purifier is regenerated. The substances contained in the tap water that must be removed include chlorine odor, musty odor, trihalomethane, iron rust, and organic substances, but trihalomethane and musty odor are particularly problematic for drinking water.

【0008】ところで、かび臭の熱的特性を示差熱重量
分析で調べた結果、80〜120°Cで昇華性が見ら
れ、120〜135°Cで熱分解を起こしその後残さが
残った。トリハロメタンの中の代表的な物質としてクロ
ロホルムがあるが沸点が61.2°Cであり、熱再生し
たところ130°C以上で脱離することが解った。
By the way, the thermal characteristics of musty odor were examined by differential thermogravimetric analysis. As a result, sublimability was observed at 80 to 120 ° C, thermal decomposition occurred at 120 to 135 ° C, and the residue remained thereafter. Chloroform is a typical substance in trihalomethane, but its boiling point is 61.2 ° C, and it was found that desorption occurs at 130 ° C or higher when it is regenerated by heat.

【0009】一方、残留塩素は活性炭によりイオン化さ
れる。また、鉄錆や水垢のような有機物は低温では再生
されないが、フィルターで除去できる。
On the other hand, residual chlorine is ionized by activated carbon. In addition, organic substances such as iron rust and scale are not regenerated at low temperatures, but can be removed with a filter.

【0010】従って、浄水器をフィルターで鉄錆や有機
物を除去した後にトリハロメタンとかび臭を活性炭で除
去するシステムとした場合、この活性炭の再生は、80
〜120°Cの加熱空気または水蒸気を活性炭に通気し
た後、130〜200°Cの加熱空気または水蒸気を活
性炭に通気して行うのが効率的である。
Therefore, when the water purifier has a system in which iron rust and organic substances are removed by a filter and then trihalomethane and musty odor are removed by activated carbon, the regeneration of the activated carbon is 80
It is efficient to ventilate the activated carbon with heated air or steam at 120 ° C to 120 ° C and then ventilate the activated carbon with heated air or steam at 130 to 200 ° C.

【0011】[0011]

【作 用】本発明では、80〜120°Cの加熱空気
または水蒸気を活性炭に通気することでかび臭いの除去
ができ、130〜200°Cの加熱空気または水蒸気を
通すことでトリハロメタンの除去ができる。
[Operation] In the present invention, a musty odor can be removed by passing heated air or steam at 80 to 120 ° C through activated carbon, and trihalomethane can be removed by passing heated air or steam at 130 to 200 ° C. ..

【0012】本発明では上記のように温度の違う多段ス
テージで再生を行うことにより低温で活性炭を熱再生す
ることができる。
In the present invention, the activated carbon can be thermally regenerated at a low temperature by regenerating it in multiple stages having different temperatures as described above.

【0013】[0013]

【実施例】次に本発明の一実施例について説明する。
尚、実施例は一つの例示であって、本発明の精神を逸脱
しない範囲で種々の変更あるいは改良を行いうることは
いうまでもない。
Next, an embodiment of the present invention will be described.
Needless to say, the embodiment is merely an example, and various modifications and improvements can be made without departing from the spirit of the present invention.

【0014】図1に示す実施例にしたがって説明する。
図1は本発明の活性炭の熱再生方法を使用する活性炭再
生装置を組み込んだ浄水器の構成について示す。ボデ−
1背面に上水取り入れ用の流入口2及び再生時熱風を排
気するための排気口3が設けられている。ボデー1内部
には鉛直方向に配置されたフィルターカートリッジ5と
断熱材9により囲まれた活性炭カートリッジ6と熱風発
生器7を収納し、電磁弁8aを介しフィルターカートリ
ッジ5の下流側と活性炭カートリッジ6の下方に位置す
る継ぎ手及び熱風発生器7と接続されている。また、電
磁弁8bを介して活性炭カートリッジ6の上方に位置す
る継ぎ手と排気口3及び吐出口4と接続されている。
A description will be given according to the embodiment shown in FIG.
FIG. 1 shows the structure of a water purifier incorporating an activated carbon regenerating apparatus using the method for regenerating heat of activated carbon of the present invention. Body
An inflow port 2 for taking in clean water and an exhaust port 3 for exhausting hot air at the time of regeneration are provided on the back surface of the device 1. Inside the body 1, the vertically arranged filter cartridge 5, the activated carbon cartridge 6 surrounded by the heat insulating material 9 and the hot air generator 7 are housed, and the downstream side of the filter cartridge 5 and the activated carbon cartridge 6 are connected via the solenoid valve 8a. It is connected to the joint located below and the hot air generator 7. Further, the coupling located above the activated carbon cartridge 6 is connected to the exhaust port 3 and the discharge port 4 via the solenoid valve 8b.

【0015】次ぎに操作方法について説明する。通常使
用の場合の浄水供給時には電磁弁8a、8bは実線矢印
で示す様に切り換えられている。上水は給水口2より取
り入れられ、まずフィルターカートリッジ5に送られ、
次ぎに活性炭カートリッジ6で浄化されスイッチ11を
押すことにより吐出口4より浄水が供給される。一方、
活性炭の再生時には電磁弁8a、8bは破線矢印に示す
様に切り換えられている。熱風発生器7より第1ステー
ジではかび臭物質の熱分解しない温度である100°C
の熱風を3時間活性炭カートリッジ6に送りかび臭物質
やトリハロメタンの一部を脱離させ、第2ステージでは
170°Cの熱風を3時間送りトリハロメタン及びその
多の低沸点有機物を脱離させることにより活性炭を再生
させる。
Next, the operation method will be described. At the time of supplying purified water for normal use, the solenoid valves 8a and 8b are switched as shown by solid arrows. Clean water is taken in through the water supply port 2, and is first sent to the filter cartridge 5,
Next, it is purified by the activated carbon cartridge 6 and the switch 11 is pressed to supply purified water from the discharge port 4. on the other hand,
When the activated carbon is regenerated, the solenoid valves 8a and 8b are switched as shown by the broken line arrows. 100 ° C which is a temperature at which the musty odor substance is not thermally decomposed in the first stage from the hot air generator 7.
Hot air is sent to the activated carbon cartridge 6 for 3 hours to remove part of musty odorous substances and trihalomethane, and in the second stage, hot air at 170 ° C is sent for 3 hours to remove trihalomethane and its many low-boiling organic substances. To play.

【0016】[0016]

【発明の効果】本発明は、上述のように温度の違う多段
ステージで再生を行うことにより低温で活性炭を熱再生
することができるという効果を有する。
INDUSTRIAL APPLICABILITY The present invention has the effect that the activated carbon can be thermally regenerated at a low temperature by regenerating it in multiple stages having different temperatures as described above.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の1実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 ボデー 2 流入口 3 排気口 4 吐出口 5 フィルターカートリッジ 6 活性炭カートリッジ 7 熱風発生器 8a 電磁弁 8b 電磁弁 9 断熱材 10 電源コード 11 スイッチ 1 Body 2 Inlet 3 Exhaust Port 4 Discharge Port 5 Filter Cartridge 6 Activated Carbon Cartridge 7 Hot Air Generator 8a Solenoid Valve 8b Solenoid Valve 9 Insulation Material 10 Power Cord 11 Switch

───────────────────────────────────────────────────── フロントページの続き (72)発明者 河村 典彦 大阪府門真市大字門真1048番地松下電工株 式会社内 (72)発明者 岸本 篤子 大阪府門真市大字門真1048番地松下電工株 式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norihiko Kawamura 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Atsuko Kishimoto, 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works Co., Ltd.

Claims (1)

【特許請求の範囲】 【請求項1】 80〜120°Cの加熱空気または水蒸
気を活性炭に通気した後、130〜200°Cの加熱空
気または水蒸気を活性炭に通気することを特徴とする活
性炭の熱再生方法。
Claim: What is claimed is: 1. An activated carbon characterized in that after heating air or steam at 80 to 120 ° C is passed through the activated carbon, heated air or steam at 130 to 200 ° C is passed through the activated carbon. Heat regeneration method.
JP3184366A 1991-07-24 1991-07-24 Method for thermal regeneration of active carbon Pending JPH0524815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3184366A JPH0524815A (en) 1991-07-24 1991-07-24 Method for thermal regeneration of active carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3184366A JPH0524815A (en) 1991-07-24 1991-07-24 Method for thermal regeneration of active carbon

Publications (1)

Publication Number Publication Date
JPH0524815A true JPH0524815A (en) 1993-02-02

Family

ID=16151974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3184366A Pending JPH0524815A (en) 1991-07-24 1991-07-24 Method for thermal regeneration of active carbon

Country Status (1)

Country Link
JP (1) JPH0524815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101672728B1 (en) * 2015-05-26 2016-11-04 이상훈 Improved Large Capacity Water Treatment Apparatus For Regenerating Activated Carbon

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55126527A (en) * 1979-03-22 1980-09-30 Hitachi Chem Co Ltd Heat regenerating method and apparatus for powder activated carbon

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55126527A (en) * 1979-03-22 1980-09-30 Hitachi Chem Co Ltd Heat regenerating method and apparatus for powder activated carbon

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101672728B1 (en) * 2015-05-26 2016-11-04 이상훈 Improved Large Capacity Water Treatment Apparatus For Regenerating Activated Carbon
WO2016190525A1 (en) * 2015-05-26 2016-12-01 (주)윈텍글로비스 Large-capacity water treatment apparatus having improved activated carbon water-purification and regeneration function
CN107709244A (en) * 2015-05-26 2018-02-16 威特格乐维斯株式会社 Improve the Large Copacity water treatment facilities of active carbon purifying and regeneration function
CN107709244B (en) * 2015-05-26 2021-03-09 威特格乐维斯株式会社 High-capacity water treatment device for improving purification and regeneration functions of activated carbon

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