JP2883009B2 - Organic wastewater treatment method and apparatus - Google Patents
Organic wastewater treatment method and apparatusInfo
- Publication number
- JP2883009B2 JP2883009B2 JP6225143A JP22514394A JP2883009B2 JP 2883009 B2 JP2883009 B2 JP 2883009B2 JP 6225143 A JP6225143 A JP 6225143A JP 22514394 A JP22514394 A JP 22514394A JP 2883009 B2 JP2883009 B2 JP 2883009B2
- Authority
- JP
- Japan
- Prior art keywords
- mno
- packed bed
- organic wastewater
- packed
- ozone
- 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.)
- Expired - Lifetime
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biological Treatment Of Waste Water (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水の二次処理水、ゴ
ミ埋め立て地からの浸出水、し尿、産業廃水等の有機性
排水中から、COD 成分、アンモニア性窒素等を除去する
に適した有機性排水の処理方法及び装置に関するもので
ある。The present invention is suitable for removing COD components, ammonia nitrogen, etc. from organic wastewater such as secondary effluent, leachate from landfills, human waste, and industrial wastewater. And a method and apparatus for treating organic wastewater.
【０００２】[0002]
【従来の技術】有機性排水の処理には従来から生物処理
が行われているが、排水中のCOD 成分は生物処理のみで
は十分に除去することができない。このために生物処理
の後段でオゾン処理や活性炭吸着処理、あるいはこれら
を組み合わせた処理が行われている。しかしオゾン処理
を行ってもなおCOD 成分の除去は十分ではないうえ、排
オゾンの処理が必要であるという問題がある。一方、活
性炭吸着処理は処理コストが高く、また定期的に活性炭
の再生のための交換作業が必要となるという問題があ
る。2. Description of the Related Art Biological treatment has conventionally been performed for the treatment of organic wastewater, but COD components in the wastewater cannot be sufficiently removed only by biological treatment. For this purpose, ozone treatment, activated carbon adsorption treatment, or a combination of these treatments is performed after the biological treatment. However, there is a problem that even after the ozone treatment, the removal of the COD component is not sufficient, and the treatment of the exhausted ozone is required. On the other hand, the activated carbon adsorption treatment has a problem that the treatment cost is high and that a replacement work for regeneration of the activated carbon is required periodically.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記した従来
の問題点を解決して、有機性廃水中からCOD 成分やアン
モニア性窒素、色度等を十分に除去することができ、し
かも排オゾンの処理や充填材の再生のための交換作業も
不要である有機性排水の処理方法及び装置を提供するた
めになされたものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and can sufficiently remove COD components, ammonia nitrogen, chromaticity, and the like from organic wastewater, and furthermore, can eliminate waste ozone. The purpose of the present invention is to provide a method and an apparatus for treating organic wastewater, which do not require the treatment of wastewater or the replacement work for regenerating the filler.
【０００４】[0004]
【課題を解決するための手段】上記の課題を解決するた
めになされた請求項１の有機性排水の処理方法は、反応
槽内に収容した、MnO2触媒が充填されたMnO2充填層の上
方に上部充填層を設け、このMnO2充填層には下方からオ
ゾンガスを導入して散気しつつ上部充填層の上方から有
機性排水を供給し、前記上部充填層とMnO 2 充填層におい
て酸化処理して、反応槽底部から処理水として取り出す
ことを特徴とするものである。請求項２の有機性排水の
処理方法は、反応槽内に収容した、MnO2触媒が充填され
たMnO2充填層の上方に上部充填層を設け、このMnO2充填
層には下方からオゾンガスを導入して散気しつつ上部充
填層の上方から有機性排水を供給し、前記上部充填層と
MnO 2 充填層において酸化処理し、さらにその処理水を前
記MnO 2 充填層の下方に設けた下部充填層に導きMn成分を
除去して、反応槽底部から処理水として取り出すことを
特徴とするものである。Means for Solving the Problems] method of processing organic waste water according to claim 1 which has been made to solve the aforementioned problem, the reaction
Were housed in the tank, from above the MnO 2 catalyst the upper filling layer is provided is above the MnO 2 packed layer filled, upper packed bed while aeration in the MnO 2 packed bed by introducing ozone gas from below the organic waste water was supplied, the upper filling layer and MnO 2 packed bed smell
And oxidized and taken out from the bottom of the reaction tank as treated water. In the method for treating organic waste water according to claim 2, an upper packed layer is provided above the MnO 2 packed bed filled with the MnO 2 catalyst , which is contained in the reaction tank, and ozone gas is supplied to the MnO 2 packed bed from below. The organic wastewater is supplied from above the upper packed bed while being introduced and diffused, and the upper packed bed and
Oxidation treatment in the MnO 2 packed bed, and the treated water
The Mn component is guided to the lower packed bed provided below the MnO 2 packed bed.
It is characterized by being removed and taken out from the bottom of the reaction tank as treated water.
【０００５】また上記の課題を解決するためになされた
請求項４の有機性排水の処理装置は、反応槽内に、MnO2
触媒が充填されたMnO2充填層と、そのMnO 2 充填層の上方
に上部充填層を設けるとともに、上部充填層の直下に上
部充填層用逆洗装置を設け、またMnO2充填層の直下にオ
ゾンガス散気装置及びMnO 2 充填層用逆洗装置を設けたこ
とを特徴とするものである。更に請求項５の有機性排水
の処理装置は、反応槽内に、MnO2触媒が充填されたMnO2
充填層と、そのMnO 2 充填層の上下に上部充填層と下部充
填層とをそれぞれ設けるとともに、上部充填層と下部充
填層それぞれの直下に各々専用の逆洗装置を設け、また
MnO2充填層の直下にオゾンガス散気装置及びMnO 2 充填層
用逆洗装置を設けたことを特徴とするものである。[0005] In order to solve the above-mentioned problems, the organic wastewater treatment apparatus according to claim 4 is characterized in that MnO 2
And MnO 2 packed bed catalyst is filled, provided with an upper packed bed above the MnO 2 packed layer, on just below the upper packing layer
The parts backwashing device for filling layer provided, also characterized in the provision of the backwash device for ozone air diffuser and MnO 2 packed layer immediately below the MnO 2 packed bed. Further, the organic wastewater treatment device according to claim 5 , wherein the MnO 2 catalyst filled with MnO 2
A packed bed, and an upper packed bed and a lower packed bed are respectively provided above and below the MnO 2 packed bed , and a dedicated backwashing device is provided directly below each of the upper packed bed and the lower packed bed,
Ozone air diffuser and MnO 2 packed layer immediately below the MnO 2 packed bed
A backwashing device is provided.
【０００６】[0006]
【作用】本発明においては、上部充填層の上方から供給
された有機性排水はまず上部充填層を通過する。上部充
填層の上部はオゾンの分解により生じた酸素濃度の高い
ガスで散気されているため、有機性排水のCOD 成分は充
填材に付着した生物膜により好気的に分解される。また
有機性排水が下水の二次処理水である場合には、硝化に
よってアンモニア性窒素の除去が可能である。有機性排
水は次に上部充填層の下部を流れるが、この部分では未
反応のオゾンによってオゾン酸化が行われ、COD 成分は
更に分解される。In the present invention, the organic wastewater supplied from above the upper packed bed first passes through the upper packed bed. Since the upper part of the upper packed bed is diffused with a gas having a high oxygen concentration generated by the decomposition of ozone, the COD component of the organic wastewater is aerobically decomposed by the biofilm attached to the filler. Further, when the organic wastewater is secondary sewage water, ammonia nitrogen can be removed by nitrification. The organic wastewater then flows below the upper packed bed where the unreacted ozone oxidizes the ozone, further decomposing the COD components.
【０００７】なお、上部充填層を通過後の処理水の一部
を上部充填層の上方に循環させれば、COD としては除去
されていないもののオゾン酸化により生物分解性の向上
した水を再び生物処理することが可能となり、効率的に
COD を分解除去することが可能である。[0007] If a part of the treated water after passing through the upper packed bed is circulated above the upper packed bed, water that has not been removed as COD but has improved biodegradability due to ozone oxidation can be recycled again. Can be processed efficiently
It is possible to decompose and remove COD.
【０００８】次に有機性排水はMnO2充填層を流下する
が、この部分では有機性排水中のCOD 成分はオゾンとMn
O2との複合酸化によって更に酸化分解除去される。この
部分においては次のような反応が進行し、COD 成分の酸
化分解が行われる。Next, the organic wastewater flows down the MnO 2 packed bed, where the COD components in the organic wastewater are ozone and Mn.
It is further oxidatively decomposed and removed by complex oxidation with O 2 . In this part, the following reaction proceeds, and oxidative decomposition of the COD component is performed.
【０００９】[0009]
【化１】MnO2＋COD →MnO ＋反応生成物・・・・・ MnO ＋O3→MnO2＋O2・・・・・・・・・・ O3＋COD →O2＋反応生成物 MnO2＋O3→MnO2＋O2＋O O ＋COD →反応生成物[Formula 1] MnO 2 + COD → MnO + reaction product ··· MnO + O 3 → MnO 2 + O 2 ······· O 3 + COD → O 2 + reaction product MnO 2 + O 3 → MnO 2 + O 2 + O O + COD → Reaction product
【００１０】特にMnO2充填層の下部では、式により生
成したMnO を式のようにMnO2へと再生する反応が進行
するので、MnO2は継続して使用することが可能であり、
MnO2の再生のための交換作業が不要である。そしてこの
ようにして処理された処理水は槽底部から取り出される
が、オゾンは上記したように槽内において完全に分解さ
れるため、従来のような残留オゾンがなく、排オゾンの
処理が不要となる利点がある。[0010] Especially at the bottom of MnO 2 packed bed, since the reaction to regenerate the of MnO produced by expression to MnO 2 as in Equation progresses, MnO 2 is can be used continuously,
No replacement work is required for MnO 2 regeneration. Then, the treated water thus treated is taken out from the bottom of the tank, but since ozone is completely decomposed in the tank as described above, there is no residual ozone as in the conventional case, and the treatment of waste ozone is unnecessary. There are advantages.
【００１１】さらに請求項２と請求項５に示したよう
に、MnO2充填層の下方に下部充填槽を設けておけば、摩
耗によってMnO2充填層から流下した微細なMnO2を除去す
ることができるとともに、溶存オゾンによってMn2+を不
溶性のMn4+に酸化したり、溶存酸素によってMn2+を生物
酸化させることができ、処理水中へのMn2+イオンの流出
をなくすることができる利点がある。Furthermore, as shown in claim 2 and claim 5, if the lower filling tank provided below the MnO 2 packed bed, to remove the fine MnO 2 falling from MnO 2 packed layer by abrasion In addition to dissolved oxygen, Mn 2+ can be oxidized to insoluble Mn 4+ by dissolved ozone, and Mn 2+ can be biologically oxidized by dissolved oxygen, eliminating the outflow of Mn 2+ ions into treated water. There are advantages that can be done.
【００１２】以下に本発明を実施例によって更に詳細に
説明する。図１は請求項１の有機性排水の処理方法を実
施するための請求項４の有機性排水の処理装置の一例を
示す図である。図１において、１は反応槽、２はMnO2触
媒が充填されたMnO2充填層、３はMnO2充填層２の上方の
上部充填層である。上部充填層３は、砂利、軽量骨材等
の粒径が20mm以下の充填材を充填したものである。MnO2
充填層２の下方にはオゾンガス散気装置４のほかに、空
気逆洗ライン５と水逆洗ライン６とからなるMnO 2 充填層
用逆洗装置が設けられている。また、上部充填層３の直
下にも空気逆洗ライン７と水逆洗ライン８とからなる上
部充填層用逆洗装置が設けられているとともに、上部充
填層３の上部と下部にそれぞれ逆洗排水排出ライン９、
10が設けられている。COD 成分、アンモニア性窒素、色
度等を含有する有機性廃水は原水供給ライン11を介して
上部充填層３の上方から反応槽１内に供給され、槽底部
の処理水排出ライン12から取り出される。13はMnO2充填
層２と上部充填層３との中間から処理水の一部を上方に
循環させる循環ラインである。Hereinafter, the present invention will be described in more detail with reference to Examples. FIG. 1 is a diagram showing an example of an organic wastewater treatment apparatus according to claim 4 for carrying out the organic wastewater treatment method according to claim 1. In FIG. 1, 1 is a reaction tank, 2 is a MnO 2 packed bed filled with a MnO 2 catalyst, and 3 is an upper packed bed above the MnO 2 packed bed 2. The upper filling layer 3 is filled with a filling material having a particle size of 20 mm or less, such as gravel and lightweight aggregate. MnO 2
Below the packed bed 2, in addition to the ozone gas diffuser 4, an MnO 2 packed bed comprising an air backwash line 5 and a water backwash line 6.
Backwashing device is provided use. The straight upper packed bed 3
On consisting air backwash line 7 and water backwash line 8 Metropolitan also under
A backwashing device for the partly packed bed is provided, and a backwash drainage discharge line 9 is provided above and below the upper packed bed 3, respectively.
Ten are provided. Organic wastewater containing COD components, ammonia nitrogen, chromaticity, etc., is supplied into the reaction tank 1 from above the upper packed bed 3 via a raw water supply line 11, and is taken out from a treated water discharge line 12 at the bottom of the tank. . Reference numeral 13 denotes a circulation line for circulating a part of the treated water upward from the middle between the MnO 2 packed bed 2 and the upper packed bed 3.
【００１３】オゾンガス散気装置４から散気されたオゾ
ンは、まずMnO2充填層２で有機性排水中のCOD 成分の酸
化と、前記の式により還元されてMnO となったMnO2の
再生のために利用される。未反応のオゾンは、上部充填
層３の下部3aの部分でCOD 成分の酸化のために消費され
る。そして上部充填層３の上部3bの部分においてオゾン
は完全に分解され、溶存酸素の増大に寄与する。The ozone diffused from the ozone gas diffuser 4 first oxidizes COD components in the organic waste water in the MnO 2 packed bed 2 and regenerates MnO 2 reduced to MnO by the above equation. Used for Unreacted ozone is consumed in the lower portion 3a of the upper packed bed 3 for oxidation of COD components. Ozone is completely decomposed in the upper portion 3b of the upper packed layer 3, and contributes to an increase in dissolved oxygen.
【００１４】一方、これとは逆に反応槽１の上部から下
部に向かって流下する有機性排水は、前述したように上
部充填層３の上部3bにおいて好気的に生物分解され、上
部充填層３の下部3aでオゾン酸化される。このとき、上
部充填層３の充填材の粒径は小さい方が生物膜の付着面
積が大きくなり、オゾンの吸収効率も向上し、COD 成分
の効率的な除去が可能となる。しかし粒径が小さ過ぎる
と生物膜の成長による閉塞が生ずるので、その粒径は20
mm以下とし、上部充填層３の上部3bでは３〜10mm、上部
充填層３の下部3aでは３mm以下とすることが好ましい。
そして有機性排水がMnO2充填層２を通過する間に、COD
成分はオゾンとMnO2との複合酸化によって更に酸化分解
除去されたうえ、処理水として槽底部の処理水排出ライ
ン12から取り出される。On the other hand, on the other hand, the organic wastewater flowing down from the upper part to the lower part of the reaction tank 1 is aerobicly biodegraded in the upper part 3b of the upper packed layer 3 as described above, Ozone is oxidized in the lower portion 3a of the third electrode 3. At this time, the smaller the particle size of the filler in the upper filling layer 3 is, the larger the attached area of the biofilm is, the higher the ozone absorption efficiency is, and the efficient removal of COD components becomes possible. However, if the particle size is too small, blockage due to biofilm growth will occur, so
mm or less, preferably 3 to 10 mm in the upper portion 3b of the upper filling layer 3, and 3 mm or less in the lower portion 3a of the upper filling layer 3.
And while the organic wastewater passes through the MnO 2 packed bed 2, COD
The components are further oxidatively decomposed and removed by the combined oxidation of ozone and MnO 2, and are taken out from the treated water discharge line 12 at the bottom of the tank as treated water.
【００１５】図２は請求項５の有機性排水の処理装置の
一例を示す図である。この装置は、図１に示したMnO2充
填層２の下方に下部充填槽14を設けるとともに、その直
下に空気逆洗ライン15と水逆洗ライン16とからなる下部
充填槽用逆洗装置を設けたものである。この図２の装置
では、下部充填槽14の上部14b が化学的マンガン酸化部
となり、前記したように溶存オゾンによってMn2+を不溶
性のMn4+に酸化する。また下部充填槽14の下部14a は生
物学的マンガン酸化部となり、溶存酸素によってMn2+を
生物酸化させる。FIG. 2 is a diagram showing an example of an organic wastewater treatment apparatus according to claim 5. The device provided with a lower filling chamber 14 to the lower MnO 2 packed bed 2 shown in FIG. 1, the straight
Lower part consisting of air backwash line 15 and water backwash line 16 below
A backwashing device for the filling tank is provided. In the apparatus shown in FIG. 2, the upper part 14b of the lower filling tank 14 serves as a chemical manganese oxidation part, and oxidizes Mn 2+ to insoluble Mn 4+ by dissolved ozone as described above. The lower part 14a of the lower filling tank 14 serves as a biological manganese oxidizing part, and oxidizes Mn 2+ with dissolved oxygen.
【００１６】上記した本発明の効果を確認するために、
図１の装置を使用し、各種の有機性排水を原水として処
理テストを行った結果は下記の通りであった。ただし循
環ライン13は使用しなかった。In order to confirm the effects of the present invention,
Using the apparatus shown in FIG. 1, various organic wastewaters were used as raw water to conduct a treatment test, and the results were as follows. However, the circulation line 13 was not used.
【表１】 ┌────────────┬──────────┬──────────┐ │ │ │ゴミ埋立地浸出水生物│ │ 原水の種類 │下水の二次処理水 │処理水 │ ├─┬──────────┼──────────┼──────────┤ │原│BOD │ ５mg/L │ ５mg/L │ │水│COD │ 11mg/L │ 70mg/L │ │ │NH4-N │ 14mg/L │ ─── │ │ │TOC │ ─── │ 60mg/L │ ├─┼──────────┼──────────┼──────────┤ │処│BOD │ １mg/L以下 │ １mg/L │ │理│COD │ ２mg/L │ ９mg/L │ │水│NH4-N │ ３mg/L │ ─── │ │ │TOC │ ─── │ 17mg/L │ ├─┼──────────┼──────────┼──────────┤ │実│オゾン添加量 │ 66mg/L │ 315mg/L │ │験│上部充填層の反応時間│ 30分（みかけ) │ 30分（みかけ) │ │条│MnO2充填層の反応時間│ １時間（みかけ）│ １時間（みかけ）│ │件│ │ │ │ └─┴──────────┴──────────┴──────────┘[Table 1] ┌────────────┬──────────┬──────────┐ │ │ │Leachate from litter landfills│ │ Type of raw water │ Secondary sewage water │ Treated water │ ├─┬──────────┼──────────┼────────── │ │Origin│BOD │ 5mg / L │ 5mg / L │ │Water│COD │ 11mg / L │ 70mg / L │ │ │NH 4 -N │ 14mg / L │ ─── │ │ │TOC │ ─── │ 60mg / L │ ├─┼──────────┼──────────┼──────────┤ │Process│BOD │ 1mg / L or less│ 1mg / L │ │Manual│COD │ 2mg / L │ 9mg / L │ │Water│NH 4 -N │ 3mg / L │ ─── │ │ │TOC │ ─── │ 17mg / L │ ├─┼── │ │ Actual │ Ozone addition amount │ 66 mg / L │ 315 mg / L │ │ Test │ Top Reaction time of packed bed│30 (Apparent) │ 30 minutes (apparent) │ │ Article ￨MnO 2 reaction time of the filling layer │ 1 hour (apparent) │ 1 hour (apparent) │ │ matter │ │ │ │ └─┴──────── ──┴──────────┴──────────┘
【００１７】次にゴミ埋立地浸出水生物処理水を原水と
し、循環ライン13による循環率を100 ％として同様にテ
ストを行った結果を示す。Next, the results of a similar test are shown, with the wastewater from litter landfill leachate being treated as biological water and the circulation rate through the circulation line 13 being 100%.
【表２】 [Table 2]
【００１８】なお、上記と同一のゴミ埋立地浸出水生物
処理水を原水とし、オゾン処理のみを行った場合の処理
水の性状と、活性炭処理のみを行った場合の処理水の性
状は次の通りであり、本発明の効果が明らかである。The properties of the treated water when only the ozone treatment is performed and the treated water when only the activated carbon treatment is performed are as follows. The effect of the present invention is clear.
【表３】 [Table 3]
【００１９】[0019]
【発明の効果】以上に説明したように、本発明の有機性
排水の処理方法及び装置によれば、有機性廃水中からCO
D 成分やアンモニア性窒素を十分に除去することができ
る。また本発明によればオゾンは全量反応槽の内部で消
費されるので、排オゾンの処理が不要である。更にオゾ
ンによってMnO2触媒が再生されるので、充填材の再生の
ための交換作業も不要である。よって本発明は従来の問
題点を解決した有機性排水の処理方法及び装置として、
業界に寄与するところは大である。As described above, according to the method and apparatus for treating organic waste water of the present invention, CO
D component and ammonia nitrogen can be sufficiently removed. Further, according to the present invention, the entire amount of ozone is consumed inside the reaction tank, so that it is not necessary to treat the discharged ozone. Further, since the MnO 2 catalyst is regenerated by ozone, there is no need for replacement work for regenerating the filler. Therefore, the present invention provides a method and an apparatus for treating organic wastewater which have solved the conventional problems.
The contribution to the industry is significant.
【図１】請求項４の発明の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the invention of claim 4;
【図２】請求項５の発明の実施例を示す断面図である。FIG. 2 is a sectional view showing an embodiment of the invention of claim 5;
１ 反応槽、２ MnO2充填層、３ 上部充填層、3a 上
部充填層の下部、3b上部充填層の上部、４ オゾンガス
散気装置、５ 空気逆洗ライン、６ 水逆洗ライン、７
空気逆洗ライン、８ 水逆洗ライン、９ 逆洗排水排
出ライン、10逆洗排水排出ライン、11 原水供給ライ
ン、12 処理水排出ライン、13 循環ライン、14 下部
充填槽、14a 下部充填槽の下部、14b 下部充填槽の
上部、15 空気逆洗ライン、16 水逆洗ライン1 reactor, 2 MnO 2 packed bed, 3 upper packed bed, 3a lower part of upper packed bed, 3b upper part of upper packed bed, 4 ozone gas diffuser, 5 air backwash line, 6 water backwash line, 7
Air backwash line, 8 water backwash line, 9 backwash drainage line, 10 backwash drainage line, 11 raw water supply line, 12 treated water discharge line, 13 circulation line, 14 lower filling tank, 14a lower filling tank Lower part, 14b Upper part of lower filling tank, 15 Air backwash line, 16 Water backwash line
Claims (5)
れたMnO2充填層の上方に上部充填層を設け、このMnO2充
填層には下方からオゾンガスを導入して散気しつつ上部
充填層の上方から有機性排水を供給し、前記上部充填層
とMnO 2 充填層において酸化処理して、反応槽底部から処
理水として取り出すことを特徴とする有機性排水の処理
方法。1. A accommodated in the reaction vessel, the upper filling layer provided above the MnO 2 packed bed MnO 2 catalyst is filled, while diffuser by introducing ozone gas from below into the MnO 2 packed bed Supplying organic wastewater from above the upper packed bed;
A method for treating organic wastewater , comprising oxidizing in a MnO 2 -filled bed and taking out as treated water from the bottom of the reaction tank.
れたMnO2充填層の上方に上部充填層を設け、このMnO2充
填層には下方からオゾンガスを導入して散気しつつ上部
充填層の上方から有機性排水を供給し、前記上部充填層
とMnO 2 充填層において酸化処理し、さらにその処理水を
前記MnO 2 充填層の下方に設けた下部充填層に導きMn成分
を除去して、反応槽底部から処理水として取り出すこと
を特徴とする有機性排水の処理方法。2. A accommodated in the reaction vessel, the upper filling layer provided above the MnO 2 packed bed MnO 2 catalyst is filled, while diffuser by introducing ozone gas from below into the MnO 2 packed bed Supplying organic wastewater from above the upper packed bed;
And oxidation treatment in the MnO 2 packed bed,
The Mn component is led to the lower packed layer provided below the MnO 2 packed layer.
A method for treating organic wastewater, comprising removing water from the bottom of the reactor as treated water.
理水の一部を上部充填層の上方に循環させる請求項１ま
たは２に記載の有機性排水の処理方法。3. The method for treating organic wastewater according to claim 1, wherein a part of the treated water is circulated above the upper packed bed from between the MnO 2 packed bed and the upper packed bed.
充填層と、そのMnO 2 充填層の上方に上部充填層を設ける
とともに、上部充填層の直下に上部充填層用逆洗装置を
設け、またMnO2充填層の直下にオゾンガス散気装置及び
MnO 2 充填層用逆洗装置を設けたことを特徴とする有機性
排水の処理装置。 4. A reaction vessel, MnO 2 to MnO 2 catalyst is filled
A packed bed, and an upper packed bed is provided above the MnO 2 packed bed, a backwashing device for the upper packed bed is provided immediately below the upper packed bed, and an ozone gas diffusing device is provided immediately below the MnO 2 packed bed.
An organic wastewater treatment device comprising a backwashing device for a MnO 2 packed bed .
充填層と、そのMnO 2 充填層の上下に上部充填層と下部充
填層とをそれぞれ設けるとともに、上部充填層と下部充
填層それぞれの直下に各々専用の逆洗装置を設け、また
MnO2充填層の直下にオゾンガス散気装置及びMnO 2 充填層
用逆洗装置を設けたことを特徴とする有機性排水の処理
装置。 5. A reaction vessel, MnO 2 to MnO 2 catalyst is filled
A packed bed, and an upper packed bed and a lower packed bed are respectively provided above and below the MnO 2 packed bed , and a dedicated backwashing device is provided directly below each of the upper packed bed and the lower packed bed,
Ozone air diffuser and MnO 2 packed layer immediately below the MnO 2 packed bed
An organic wastewater treatment device comprising a backwashing device for use .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6225143A JP2883009B2 (en) | 1994-09-20 | 1994-09-20 | Organic wastewater treatment method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6225143A JP2883009B2 (en) | 1994-09-20 | 1994-09-20 | Organic wastewater treatment method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0889981A JPH0889981A (en) | 1996-04-09 |
| JP2883009B2 true JP2883009B2 (en) | 1999-04-19 |
Family
ID=16824630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6225143A Expired - Lifetime JP2883009B2 (en) | 1994-09-20 | 1994-09-20 | Organic wastewater treatment method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2883009B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9422177B2 (en) | 2013-10-10 | 2016-08-23 | Tronox Llc | Removal of organic impurities from water |
| CN104118929A (en) * | 2014-07-02 | 2014-10-29 | 江苏中金环保科技有限公司 | A cold-rolling waste-water treating machine adopting an ozone catalytic reaction |
| CN106630367B (en) * | 2015-10-29 | 2019-11-22 | 宝山钢铁股份有限公司 | A kind of method and apparatus removing SCOD in emulsion Electro Sorb strong brine |
-
1994
- 1994-09-20 JP JP6225143A patent/JP2883009B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0889981A (en) | 1996-04-09 |
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