JP3461514B2 - Advanced water treatment system and method of starting advanced water treatment system - Google Patents
Advanced water treatment system and method of starting advanced water treatment systemInfo
- Publication number
- JP3461514B2 JP3461514B2 JP10713291A JP10713291A JP3461514B2 JP 3461514 B2 JP3461514 B2 JP 3461514B2 JP 10713291 A JP10713291 A JP 10713291A JP 10713291 A JP10713291 A JP 10713291A JP 3461514 B2 JP3461514 B2 JP 3461514B2
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- treatment
- treatment system
- ozone
- tower
- 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
Links
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
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】この発明は、上水道や下水道等の
分野における高度水処理技術に係わり、特にオゾン処理
および生物活性炭処理を組み合わせて水処理を行う技術
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an advanced water treatment technology in the field of water supply, sewerage, etc., and more particularly to a technology for water treatment by combining ozone treatment and biological activated carbon treatment.
【０００２】[0002]
【従来の技術】図３は、浄水プロセスの一般的な構成を
示す。河川１などから取水した原水はまず着水井２に着
水し、この後、凝集沈殿池３に送られる。この凝集沈殿
池３では、原水中に凝集剤が注入・混合され、撹拌・滞
留処理により原水中の懸濁物質（砂，粘土，藻類等の有
機物等）が凝集して沈澱・分離される。2. Description of the Related Art FIG. 3 shows a general structure of a water purification process. Raw water taken from the river 1 or the like first reaches the landing well 2 and then is sent to the coagulating sedimentation basin 3. In the coagulating sedimentation tank 3, a coagulant is injected and mixed into the raw water, and the suspended substances (sand, clay, organic matter such as algae) in the raw water are aggregated and precipitated / separated by the stirring / retaining treatment.
【０００３】このプロセスでは、殺藻処理や鉄・マンガ
ンなどの色度成分の除去を目的とした塩素処理が組み込
まれている。大都市近郊においては河川１などの汚濁が
著しいため、アンモニアや、発ガン性物質のＴＨＭ（ト
リハロメタン）の前駆物質であるフミン質を含む色度成
分の含有率が高く、塩素処理により塩素とアンモニアが
反応してクロラミンを生成し、必要以上の塩素を消費し
てしまう。その結果、塩素注入率が高くなりＴＨＭ生成
能（ＴＨＭＦＰ）が増大する。In this process, chlorine treatment for the purpose of removing algae and chromaticity components such as iron and manganese is incorporated. In the suburbs of large cities, the pollution of rivers 1 is significant, so the content of chromaticity components including ammonia and humic substances that are precursors of the carcinogen THM (trihalomethane) is high. React to produce chloramine and consume more chlorine than necessary. As a result, the chlorine injection rate increases and the THM generation capacity (THMFP) increases.
【０００４】このような背景から近年では、上述した物
質の除去を目的として高度浄水処理システム４を浄水プ
ロセスに組み込む方式が行われるようになってきた。高
度浄水処理には、オゾン処理や生物活性炭処理がある。
たとえば塩素処理の代替としてオゾン処理塔５によりオ
ゾン処理を行い、さらに活性炭処理塔６により色度成分
などを除去する。この後、砂ろ過池７によりろ過したう
えで浄水池８に送水する。活性炭処理塔６に充填される
粒状活性炭６−１は、硝化菌などの微生物を表面に繁殖
させたものであり、流入水中の微量有機物の吸着・除去
だけでなくアンモニア態窒素の除去も可能となってい
る。生物活性炭処理の前にオゾン処理を行うことによ
り、負荷変動に対する許容度や活性炭の寿命の向上を図
っている。From such a background, in recent years, a method of incorporating the advanced water purification system 4 into the water purification process has been used for the purpose of removing the above-mentioned substances. Advanced water treatment includes ozone treatment and biological activated carbon treatment.
For example, as an alternative to the chlorine treatment, the ozone treatment tower 5 performs ozone treatment, and the activated carbon treatment tower 6 removes chromaticity components and the like. After this, the sand is filtered by the sand filter 7 and then sent to the water purification tank 8. The granular activated carbon 6-1 packed in the activated carbon treatment tower 6 is one in which microorganisms such as nitrifying bacteria are propagated on the surface, and it is possible not only to adsorb and remove trace organic substances in the inflow water but also to remove ammonia nitrogen. Has become. By performing ozone treatment before biological activated carbon treatment, the tolerance for load fluctuations and the life of activated carbon are improved.
【０００５】[0005]
【発明が解決しようとする課題】一般に、生物活性炭処
理では、活性炭処理塔の立ち上げに時間がかかることが
問題となる。つまり活性炭処理塔の運転開始の際または
活性炭交換後の運転再開の際に、活性炭の表面に微生物
を増殖させ、その生物相を安定させるために立ち上げ運
転を行う必要があり、この立ち上げ運転に時間がかかっ
ていた。また表面に生物相が形成された活性炭は、生物
相により微量有機物の吸着・除去性能が阻害される可能
性があり、生物活性炭処理を行うにあたって、この点も
考慮する必要がある。Generally, in biological activated carbon treatment, it takes a long time to start up the activated carbon treatment tower. In other words, when starting the operation of the activated carbon treatment tower or restarting the operation after exchanging the activated carbon, it is necessary to grow the microorganisms on the surface of the activated carbon and perform the start-up operation to stabilize the biota. Was taking time. In addition, activated carbon having a biota formed on its surface may impair the adsorption / removal performance of a trace amount of organic matter due to the biota, and it is necessary to consider this point when performing the treatment with the bioactive carbon.
【０００６】この発明は、これらの問題点に鑑み、生物
活性炭処理手段を備えた高度水処理において、早期立ち
上げ期間を可能とし、しかも微量有機物等の除去性能お
よびアンモニア態窒素の除去性能ともに優れた処理を行
える技術を提供することを目的とする。In view of these problems, the present invention enables an early start-up period in advanced water treatment equipped with a biological activated carbon treatment means, and is excellent in the removal performance of a trace amount of organic substances and the removal performance of ammonia nitrogen. It is an object of the present invention to provide a technique capable of performing different processing.
【０００７】[0007]
【課題を解決するための手段および作用】上記の目的を
達成するために、本発明者らが鋭意実験を重ねた結果、
次の点が確認された。すなわち微生物は主に処理塔上部
の活性炭に繁殖している。このためアンモニアの除去は
主に処理塔上部で行われる。一方、微量有機物の吸着・
除去は、処理塔上部では生物相に阻害される。またヤシ
ガラ系活性炭は微生物の付着・繁殖に優れ、石炭系活性
炭は微量有機物の除去にすぐれている。そこで請求項１
に係る発明では、固定床活性炭処理塔に充填する活性炭
として、ヤシガラ系活性炭を処理塔上部に配置し、石炭
系活性炭を処理塔下部に配置することとしている。微生
物の繁殖に適するヤシガラ系活性炭を処理塔上部に配置
することにより、微生物が早期に繁殖・安定化して早期
立ち上げが可能となり、優れたアンモニア態窒素の除去
性能が得られる。さらに、石炭系活性炭を処理塔下部に
配置することにより、微量有機物の吸着・除去能力も向
上する。生物相が形成されたヤシガラ系活性炭は見かけ
上の比重が小さくなるので、定常運転時あるいは逆洗後
も処理塔上部の位置に保たれる。Means and Actions for Solving the Problems In order to achieve the above object, the inventors of the present invention have conducted extensive experiments, and as a result,
The following points were confirmed. That is, the microorganisms mainly propagate on the activated carbon above the treatment tower. Therefore, the removal of ammonia is mainly performed in the upper part of the processing tower. On the other hand, adsorption of trace organic substances
Removal is inhibited by biota at the top of the treatment tower. In addition, coconut husk activated carbon is excellent in the attachment and reproduction of microorganisms, and coal activated carbon is excellent in removing trace organic substances. Therefore, claim 1
In the invention according to, the coconut husk activated carbon is arranged in the upper portion of the treatment tower and the coal activated carbon is arranged in the lower portion of the treatment tower as the activated carbon packed in the fixed bed activated carbon treatment tower. By disposing coconut husk-based activated carbon suitable for the reproduction of microorganisms in the upper part of the treatment tower, the microorganisms can be propagated and stabilized early and can be started up early, and excellent ammonia nitrogen removal performance can be obtained. Further, by arranging the coal-based activated carbon in the lower part of the treatment tower, the adsorption / removal ability of a trace amount of organic matter is also improved. Since the coconut husk activated carbon on which the biota has been formed has a small apparent specific gravity, it can be kept at the position above the treatment tower during steady operation or after backwashing.
【０００８】また、オゾン処理の生物活性炭処理への影
響を考察すると、オゾン処理を生物活性炭処理の前段で
行う場合、生物活性炭処理手段の立ち上げが長期化する
ことが確認された。これは、硝化菌等、活性炭に繁殖さ
せるべき微生物も殺菌されてしまうためと考えられる。
そこで請求項２に係る発明では、生物活性炭処理手段の
立ち上げ期間中は、オゾン処理のオゾン注入率を原水に
対して１〜１０ｍｇＯ 3 ／ｌとなるように調整すること
とし、早期立ち上げを可能としている。この発明は、立
ち上げ期間中にオゾン処理を停止する態様を含む。Further, considering the effect of the ozone treatment on the biological activated carbon treatment, it was confirmed that the activation of the biological activated carbon treatment means takes a long time when the ozone treatment is performed before the biological activated carbon treatment. It is considered that this is because microorganisms such as nitrifying bacteria that should be propagated on activated carbon are also sterilized.
Therefore, in the invention according to claim 2, during the start-up period of the biological activated carbon treatment means, the ozone injection rate of the ozone treatment is set to the raw water.
On the other hand, it will be adjusted to 1 to 10 mgO 3 / l to enable early startup. The present invention includes a mode in which the ozone treatment is stopped during the startup period.
【０００９】[0009]
【実施例】以下、この発明の実施例を説明する。Embodiments of the present invention will be described below.
【００１０】（１）高度浄水処理の室内実験
本発明者らは、活性炭の早期立ち上げ等のための手法を
確立するために、種々の処理方式による高度浄水処理の
室内実験を行った。この実験では３系列の処理系を構成
して各処理系に共試原水を通水してアンモニア除去およ
びＴＨＭＦＰ除去の面での挙動を観察した。第１の処理
系（ＡＣ１）は、共試原水をオゾン処理したうえで固定
床のヤシガラ系粒状活性炭処理塔に通水するものであ
る。第２の処理系（ＡＣ２）は、同じく共試原水をオゾ
ン処理したうえで固定床石炭系粒状活性炭処理塔に通水
するものである。第３の処理系（ＡＣ３）は、共試原水
を石炭系粒状活性炭処理塔に直接通水するものである。(1) Laboratory Experiment of Advanced Water Purification Treatment The present inventors conducted laboratory experiments of advanced water purification treatment by various treatment methods in order to establish a method for early activation of activated carbon. In this experiment, three series of treatment systems were constructed, and raw water for test was passed through each treatment system to observe the behavior in terms of ammonia removal and THMFP removal. The first treatment system (AC1) is a system in which the raw water for co-testing is subjected to ozone treatment and then passed through a fixed bed coconut husk granular activated carbon treatment tower. The second treatment system (AC2) is the same as the trial raw water, which is treated with ozone and then passed through the fixed bed coal-based granular activated carbon treatment tower. The third treatment system (AC3) is a system in which the raw water for co-testing is directly passed through the coal-based granular activated carbon treatment tower.
【００１１】共試原水は、浄水場の凝集沈殿水を想定し
たものであり、次の手順により調製した。まず腐葉土を
脱塩素水で煮沸抽出し、２００メッシュのフィルタでろ
過したうえで更に脱塩素水で希釈した。この希釈水に凝
集剤（ポリ塩化アンモニウム）を平均７５ｐｐｍの注入
率で添加し、ジャーテスタで急速撹拌１２０ｒｐｍ−３
分、緩速撹拌５０ｒｐｍ−１２分、静止沈降１５分で凝
集・沈殿分離後、上澄液を原液とした。さらに、この原
液が実凝集・沈殿処理水と同等の水質となるように原水
調整槽で脱塩素水と原液を混合希釈して共試原水とし
た。Co-test raw water is assumed to be coagulated sedimented water in a water purification plant, and was prepared by the following procedure. First, the mulch was extracted by boiling with dechlorinated water, filtered through a 200-mesh filter, and further diluted with dechlorinated water. A flocculant (polyammonium chloride) was added to this dilution water at an injection rate of 75 ppm on average, and rapid stirring was performed with a jar tester at 120 rpm-3.
Minutes, 50 rpm-12 minutes for slow stirring, and 15 minutes for static sedimentation to perform aggregation / separation, and then the supernatant was used as a stock solution. Furthermore, the dechlorination water and the stock solution were mixed and diluted in a raw water adjusting tank so that the stock solution had a water quality equivalent to that of the actual coagulation / precipitation treated water, to obtain a joint test raw water.
【００１２】実験条件は、オゾン処理においてオゾン注
入率１〜１０（ｍｇＯ3／ｌ）、オゾンガス流量１．５
〜３（ｌ／ｍｉｎ）、接触時間８〜１０ｍｉｎ、生物活
性炭処理においてＳＶ（空間速度）１．２〜４．２（ｌ
／ｈｒ）、活性炭充填高１００（ｃｍ）とした。活性炭
には、日本工業規格に基づいたヤシ殻系および石炭系粒
状を用いた。アンモニア態窒素については検水を直接イ
オンクロマトグラフで測定し、ＴＨＭＦＰについては溶
媒抽出法によりＥＣＤ付ガスクロマトグラフで測定し
た。The experimental conditions are ozone injection rate 1 to 10 (mgO 3 / l) and ozone gas flow rate 1.5 in ozone treatment.
˜3 (l / min), contact time 8 to 10 min, SV (space velocity) 1.2 to 4.2 (l in biological activated carbon treatment
/ Hr), and the activated carbon filling height was 100 (cm). As the activated carbon, coconut shell-based and coal-based particles based on Japanese Industrial Standards were used. For ammonia nitrogen, the sample water was directly measured by an ion chromatograph, and for THMFP, a gas chromatograph with ECD was measured by a solvent extraction method.
【００１３】（２）ＡＣ１〜ＡＣ３の比較
図２は、ＡＣ１〜ＡＣ３の立ち上げの際の過程を示す。
はＡＣ３、はＡＣ１、はＡＣ２を示す。この結
果、立ち上げ期間は、ヤシガラ系粒状活性炭の場合は６
３〜７７日、石炭系粒状活性炭の場合は６３〜９１日、
石炭系粒状活性炭であってもオゾン処理を行わなければ
６０〜７０日であった。つまり微生物の付着・繁殖の面
では、石炭系活性炭よりもヤシガラ系活性炭の方が優れ
ていることが確認された。また、オゾン処理を行うと、
立ち上げ期間が長期化することが確認された。さらに、
ＴＨＭＦＰ等の測定結果から、微量有機物の吸着・除去
の面では、ヤシガラ系活性炭よりも石炭系活性炭の方が
優れていることが確認された。(2) Comparison of AC1 to AC3 FIG. 2 shows a process of starting AC1 to AC3.
Indicates AC3, indicates AC1, and indicates AC2. As a result, the startup period is 6 for granular coconut husk activated carbon.
3-77 days, 63-91 days for coal-based granular activated carbon,
Even if it was a coal-based granular activated carbon, it was 60 to 70 days without ozone treatment. In other words, it was confirmed that the coconut husk activated carbon is superior to the coal activated carbon in terms of attachment and reproduction of microorganisms. Also, if ozone treatment is performed,
It was confirmed that the startup period would be prolonged. further,
From the measurement results of THMFP and the like, it was confirmed that the coal-based activated carbon was superior to the coconut husk-based activated carbon in terms of adsorption / removal of trace organic substances.
【００１４】（３）活性炭の配置
図１は、この実施例に係る生物活性炭処理塔の概要を示
す。この図に示すように、アンモニア除去能・ＴＨＭＦ
Ｐ除去能と塔高との関係をモニタリングした結果、主に
処理塔の上層にてアンモニアの除去が行われ、主に処理
塔の中層から下層にわたってＴＨＭＦＰの除去が行われ
ることが確認された。そこで、微生物の付着・繁殖の面
ではヤシガラ系活性炭の方が優れ、微量有機物の吸着・
除去の面では石炭系活性炭の方が優れていることに鑑
み、活性炭の上層にはヤシガラ系活性炭を充填して微生
物を繁殖させ、活性炭の中層から下層にわたっては石炭
系活性炭を充填して微量有機物除去を行わせることとす
れば、効率的な処理が可能となる。また、立ち上げ期間
の早期化も図れる。ヤシガラ系活性炭の容量Ｖ1と石炭
系活性炭の容量Ｖ2の比率は、アンモニア除去能のモニ
タリング結果から適宜設定すればよい。(3) Arrangement of Activated Carbon FIG. 1 shows an outline of the biological activated carbon treatment tower according to this embodiment. As shown in this figure, ammonia removal capacity / THMF
As a result of monitoring the relationship between the P removal capacity and the tower height, it was confirmed that ammonia was mainly removed in the upper layer of the treatment tower, and THMFP was mainly removed from the middle layer to the lower layer of the treatment tower. Therefore, coconut husk activated carbon is superior in terms of adhesion and reproduction of microorganisms, and adsorption of trace organic substances
Considering that coal-based activated carbon is superior in terms of removal, the upper layer of activated carbon is filled with coconut husk activated carbon to propagate microorganisms, and the middle to lower layers of activated carbon are filled with coal-based activated carbon to trace organic substances. If the removal is performed, efficient processing becomes possible. Also, the start-up period can be shortened. The ratio of the capacity V 1 of coconut husk-based activated carbon and the capacity V 2 of coal-based activated carbon may be appropriately set based on the result of monitoring the ammonia removing ability.
【００１５】また、活性炭処理では活性炭が破過すると
活性炭を交換する必要があるが、この場合、活性炭の中
層・下層の石炭系活性炭のみを交換すればよい。これに
より活性炭交換時における活性炭に定着した生物量の減
少が抑えられ、交換後の早期立ち上げ・処理効率の安定
化を図ることができる。しかも、活性炭の交換補充量・
再生処理量を低減できる。Further, in the activated carbon treatment, it is necessary to exchange the activated carbon when the activated carbon breaks through. In this case, it is sufficient to exchange only the coal-based activated carbon in the middle and lower layers of the activated carbon. As a result, it is possible to suppress a decrease in the amount of organisms settled on the activated carbon when the activated carbon is exchanged, and it is possible to achieve early startup and stabilization of treatment efficiency after the exchange. Moreover, the amount of replacement and replenishment of activated carbon
The amount of reproduction processing can be reduced.
【００１６】（４）生物活性炭処理塔の立ち上げ
生物活性炭処理塔の立ち上げにあたっては、オゾン処理
が立ち上げ期間の長期化を招くことに鑑み、立ち上げ期
間中はオゾン処理を停止し、あるいは少なくともオゾン
注入率を低減することとする。これにより早期立ち上げ
が可能となる。活性炭の構成を上記のようにヤシガラ系
活性炭および石炭系活性炭の２層構造としたうえで、こ
の立ち上げ方法を実施すれば、両者の相乗効果により極
めて効率的な生物活性炭処理が可能となる。(4) Startup of biological activated carbon treatment tower At the time of startup of the biological activated carbon treatment tower, in view of the fact that the ozone treatment causes a longer startup period, the ozone treatment is stopped during the startup period, or At least the ozone injection rate should be reduced. This enables early startup. If the activated carbon has a two-layer structure of coconut shell activated carbon and coal activated carbon as described above, and this start-up method is carried out, an extremely efficient biological activated carbon treatment becomes possible due to the synergistic effect of both.
【００１７】（５）下水処理システムへの適用
以上の説明では、上水道の高度浄水処理システムを取り
上げたが、オゾン処理および生物活性炭処理による高度
処理は、図３に示すように、下水処理システムにも導入
することが可能である。この場合、まず最初沈殿池９で
汚水中の沈殿可能な有機性浮遊物質を除去し、ばっ気槽
１０で活性汚泥により有機物を吸着・酸化・同化し、最
終沈殿池１１で活性汚泥を除去する。この後、オゾン処
理塔５および活性炭処理塔６を備えた高度処理システム
４で高度処理を行い、砂ろ過池７でろ過したうえで放流
する。この高度処理システム４において（３）（４）に
記載した手法を適用すれば、前記と同様に効率的な処理
が可能となる。(5) Application to sewage treatment system In the above description, the advanced water purification treatment system for waterworks was taken up, but the advanced treatment by ozone treatment and biological activated carbon treatment is applied to the sewage treatment system as shown in FIG. Can also be introduced. In this case, first, the settling tank 9 first removes the settling organic suspended matter in the wastewater, and the aeration tank 10 adsorbs / oxidizes / assimilates the organic matter by the activated sludge, and the final setting tank 11 removes the activated sludge. . After that, advanced treatment is performed by an advanced treatment system 4 including an ozone treatment tower 5 and an activated carbon treatment tower 6, filtered by a sand filter 7 and discharged. If the method described in (3) and (4) is applied to the advanced processing system 4, efficient processing can be performed as described above.
【００１８】[0018]
【発明の効果】以上説明したように、この発明によれ
ば、処理塔上部に配置したヤシガラ系活性炭に微生物を
繁殖させるので、立ち上げ期間を早期化できる。しか
も、処理塔下部に配置した石炭系活性炭で微量有機物の
除去を行うので、アンモニア態窒素の除去能だけでな
く、微量有機物の除去能も向上する。As described above, according to the present invention, microorganisms are propagated on the coconut husk activated carbon arranged in the upper part of the treatment tower, so that the start-up period can be shortened. Moreover, since the trace organic matter is removed by the coal-based activated carbon arranged in the lower part of the treatment tower, not only the ability to remove ammonia nitrogen but also the ability to remove the trace organic matter is improved.
【００１９】また、生物活性炭処理手段の立ち上げ期間
中は、オゾン処理のオゾン注入率を低減することとし、
活性炭に繁殖させるべき微生物がオゾン処理により殺菌
されることを回避することにより、立ち上げ期間を早期
化できる。Further, during the start-up period of the biological activated carbon treatment means, the ozone injection rate of ozone treatment is reduced,
By avoiding the sterilization of the microorganisms to be propagated on the activated carbon by the ozone treatment, the start-up period can be shortened.
【図１】この発明の一実施例に係る生物活性炭処理塔の
概要を示す説明図。FIG. 1 is an explanatory view showing an outline of a biological activated carbon treatment tower according to an embodiment of the present invention.
【図２】ＡＣ１〜ＡＣ３の立ち上げ時のアンモニア除去
性能を示すグラフ。FIG. 2 is a graph showing ammonia removal performance at startup of AC1 to AC3.
【図３】高度処理システムを導入した下水処理システム
の概要を示す説明図。FIG. 3 is an explanatory diagram showing an outline of a sewage treatment system incorporating an advanced treatment system.
【図４】浄水処理システムの概要を示す説明図。FIG. 4 is an explanatory diagram showing an outline of a water purification system.
Ａ…ヤシガラ系活性炭 Ｂ…石炭系活性炭 A ... Coconut shell activated carbon B ... Coal-based activated carbon
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０２Ｆ 3/34 １０１ Ｃ０２Ｆ 3/34 １０１Ｄ (72)発明者 島崎 弘志 東京都品川区大崎２丁目１番17号 株式 会社明電舎内 (56)参考文献 特開 平２−229595（ＪＰ，Ａ) 特開 平２−126989（ＪＰ，Ａ) 特開 平２−95494（ＪＰ，Ａ)─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI C02F 3/34 101 C02F 3/34 101D (72) Inventor Hiroshi Shimazaki 2-17 Osaki, Shinagawa-ku, Tokyo Meidensha Co., Ltd. (56) References JP-A-2-229595 (JP, A) JP-A-2-126989 (JP, A) JP-A-2-95494 (JP, A)
Claims (2)
を備え、前記活性炭に微生物を繁殖させて生物活性炭処
理を行う高度水処理システムにおいて、前記活性炭とし
て、ヤシガラ系活性炭を処理塔上部に配置し、石炭系活
性炭を処理塔下部に配置し、原水を処理塔頂部側から供
給することを特徴とする高度水処理システム。1. An advanced water treatment system comprising a fixed-bed activated carbon treatment tower filled with activated carbon, wherein microorganisms are propagated in the activated carbon to perform biological activated carbon treatment, and coconut husk activated carbon is placed above the treatment tower as the activated carbon. Place the coal-based activated carbon in the lower part of the treatment tower and supply the raw water from the top side of the treatment tower.
Advanced water treatment system, characterized in that the feed.
段を備えオゾン処理を行ったうえで生物活性炭処理を行
う高度水処理システムを運転する方法において、前記生
物活性炭処理手段の立ち上げ期間中は、オゾン処理のオ
ゾン注入率を原水に対して１〜１０ｍｇＯ3／ｌとなる
ように調整することを特徴とする高度水処理システムの
立ち上げ方法。2. A method of operating an advanced water treatment system which comprises ozone treatment means and biological activated carbon treatment means and then performs biological activated carbon treatment after the ozone treatment, wherein ozone is provided during the start-up period of the biological activated carbon treatment means. A method for starting up an advanced water treatment system, which comprises adjusting an ozone injection rate for treatment to be 1 to 10 mgO 3 / l with respect to raw water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10713291A JP3461514B2 (en) | 1991-05-13 | 1991-05-13 | Advanced water treatment system and method of starting advanced water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10713291A JP3461514B2 (en) | 1991-05-13 | 1991-05-13 | Advanced water treatment system and method of starting advanced water treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04334593A JPH04334593A (en) | 1992-11-20 |
| JP3461514B2 true JP3461514B2 (en) | 2003-10-27 |
Family
ID=14451317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10713291A Expired - Lifetime JP3461514B2 (en) | 1991-05-13 | 1991-05-13 | Advanced water treatment system and method of starting advanced water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3461514B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3969185B2 (en) * | 2002-05-24 | 2007-09-05 | 栗田工業株式会社 | Pure water production equipment |
| JP4838872B2 (en) * | 2009-07-16 | 2011-12-14 | 株式会社カナイワ | Water treatment apparatus and water treatment method |
| JP4934177B2 (en) * | 2009-08-28 | 2012-05-16 | 水ｉｎｇ株式会社 | Water purification apparatus and method |
| CN103508623B (en) * | 2012-06-29 | 2015-10-28 | 中国海洋石油总公司 | A kind for the treatment of process of coal gasification waste water |
| JP6915778B2 (en) * | 2017-06-28 | 2021-08-04 | 高島 伴治 | Method for manufacturing microorganism-containing purifying material and method for purifying water to be treated |
-
1991
- 1991-05-13 JP JP10713291A patent/JP3461514B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04334593A (en) | 1992-11-20 |
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