JP2002326083A - Adsorption system - Google Patents
Adsorption systemInfo
- Publication number
- JP2002326083A JP2002326083A JP2001242916A JP2001242916A JP2002326083A JP 2002326083 A JP2002326083 A JP 2002326083A JP 2001242916 A JP2001242916 A JP 2001242916A JP 2001242916 A JP2001242916 A JP 2001242916A JP 2002326083 A JP2002326083 A JP 2002326083A
- Authority
- JP
- Japan
- Prior art keywords
- adsorption
- activated carbon
- filter
- pretreatment
- adsorption 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.)
- Withdrawn
Links
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、排水を、内部に吸
着濾過材を収納した吸着塔を用いて処理する吸着処理シ
ステムに関する。とくに、工場や事業場における各設備
から排出される排水から有害物質などを除去する吸着処
理システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adsorption treatment system for treating waste water using an adsorption tower containing an adsorption filter therein. In particular, the present invention relates to an adsorption treatment system for removing harmful substances and the like from wastewater discharged from each facility in a factory or business place.
【０００２】[0002]
【背景技術】人体に有害な物質としてよく知られている
ダイオキシン類などの難分解性物質は、都市ごみや産業
廃棄物の焼却設備、さまざまな燃焼設備、機器類などか
ら自然界に排出され、また、化学物質の製造工程におい
ては非意図的に環境に悪影響を及ぼす種々の有機化合物
が排出され、大きな社会問題となっている。ダイオキシ
ン類、クロロフェノール、クロロベンゼンなどの塩素化
芳香族化合物の生成メカニズムは明確ではないが、低温
の排ガス処理過程で未燃カーボン、空気、水分、無機塩
素などの存在下で生成すると言われている。[Background Art] Refractory substances such as dioxins, which are well-known as harmful substances to the human body, are discharged into the natural world from incineration facilities for municipal waste and industrial waste, various combustion facilities, equipment, and the like. In the production process of chemical substances, various organic compounds that unintentionally adversely affect the environment are emitted, which is a major social problem. The mechanism of formation of chlorinated aromatic compounds such as dioxins, chlorophenol, and chlorobenzene is not clear, but it is said that they are formed in the presence of unburned carbon, air, moisture, inorganic chlorine, etc. during low-temperature exhaust gas treatment. .
【０００３】これらの化合物を含む排水の発生源として
は、クラフトパルプ製造の用に供する施設のうち、塩素
系漂白施設、廃ＰＣＢ等またはＰＣＢ処理物の分解施
設、ＰＣＢ汚染物またはＰＣＢ処理物の洗浄施設、アル
ミニウム・同合金の製造の用に供する溶解炉などにかか
わる廃ガス洗浄施設、湿式集塵施設、塩化ビニルモノマ
製造の用に供する施設のうち、二塩化エチレン洗浄施
設、廃棄物焼却施設の廃ガス洗浄施設、湿式集塵施設、
汚水などを排出する灰ピットなどが知られているが、含
塩素化合物などを用いるプロセスであれば生じてしまう
可能性はある。The sources of wastewater containing these compounds include chlorine bleaching facilities, waste PCBs and the like, decomposition facilities for PCBs, and PCB contaminants or PCB treatments among the facilities used for the production of kraft pulp. Of the cleaning facilities, waste gas cleaning facilities related to melting furnaces used for the production of aluminum and its alloys, wet dust collection facilities, and facilities used for the production of vinyl chloride monomers, of which ethylene dichloride cleaning facilities and waste incineration facilities Waste gas cleaning facilities, wet dust collection facilities,
Although ash pits for discharging wastewater and the like are known, a process using a chlorine-containing compound or the like may possibly occur.
【０００４】また、環境省によって水環境汚染物質の基
準が改正され、それまで重金属が主体であった環境基準
の対象汚染物質にトリクロロエチレン、テトラクロロエ
チレン、ＰＣＢなどの有機塩素化合物が新たに加わっ
た。工場または事業場における各設備からの排水中に
は、油分、化学的有害物質（ＣＯＤ）、生物学的有害物
質（ＢＯＤ）、浮遊物資（ＳＳ）のほかに、微量な有害
物質（有機リン化合物、ＰＣＢ、トリクロロエチレン、
テトラクロロエチレン、ダイオキシン類、ビスフェノー
ル類）が含まれる可能性がある。とくに、これらの有害
物質については、浮遊物質（ＳＳ）に付着した状態で排
出されることが多い。The Ministry of the Environment has revised the standards for water environmental pollutants. Organochlorine compounds such as trichloroethylene, tetrachloroethylene, and PCB have been newly added to the environmental standards subject to heavy metals. Wastewater from each facility at a factory or business site contains oil, chemical harmful substances (COD), biological harmful substances (BOD), suspended solids (SS), and trace harmful substances (organic phosphorus compounds). , PCB, trichlorethylene,
Tetrachlorethylene, dioxins, bisphenols). In particular, these harmful substances are often discharged in a state where they adhere to suspended solids (SS).
【０００５】従来、工場または事業場の排水処理システ
ムでは、各設備からの排水を活性炭吸着塔に流し、その
活性炭吸着塔内に収納した活性炭に排水中の汚染物質、
つまり、油分、ＣＯＤ、ＢＯＤ、ＳＳ、さらに、微量な
有害物質（有機リン化合物、ＰＣＢ、トリクロロエチレ
ン、テトラクロロエチレン、ダイオキシン類、ビスフェ
ノール類）などを吸着、除去するようにしていた。Conventionally, in a wastewater treatment system of a factory or a business site, wastewater from each facility flows into an activated carbon adsorption tower, and the activated carbon stored in the activated carbon adsorption tower contains pollutants in the wastewater,
That is, oil, COD, BOD, SS, and trace amounts of harmful substances (organic phosphorus compounds, PCBs, trichloroethylene, tetrachloroethylene, dioxins, bisphenols) and the like are absorbed and removed.
【０００６】[0006]
【発明が解決しようとする課題】一般に、活性炭吸着塔
は、圧損が上昇すると、系から切り離して逆洗操作を行
い、つまり、水を逆流させて活性炭に付着した浮遊物質
などを除去したのち、再度、系に組み込まれる。ところ
が、吸着塔に堆積した浮遊物質などが有毒性である場合
には、逆洗操作を行うと、逆洗排水の処理が難しいこと
がある。このような場合、活性炭吸着塔の吸着能力が残
っている段階で、入口部分に浮遊物質が堆積して、圧損
が上昇しただけでも、１塔全ての活性炭の交換が必要と
なる。Generally, when the pressure drop increases, the activated carbon adsorption tower is separated from the system and performs a backwashing operation, that is, after flowing back water to remove suspended substances and the like adhering to the activated carbon, Again, it is incorporated into the system. However, in the case where the suspended matter or the like deposited on the adsorption tower is toxic, it may be difficult to treat the backwash wastewater if the backwash operation is performed. In such a case, when the adsorption capacity of the activated carbon adsorption tower remains, even if the suspended matter accumulates at the inlet portion and the pressure loss is increased, it is necessary to replace the activated carbon in all the towers.
【０００７】本発明の目的は、このような課題を解決す
るためのもので、吸着濾過材の交換量および処理量を低
減できる吸着処理システムを提供することにある。[0007] An object of the present invention is to solve such a problem, and to provide an adsorption treatment system capable of reducing the exchange amount and the treatment amount of the adsorption filtration material.
【０００８】[0008]
【課題を解決するための手段】本発明の吸着処理システ
ムは、吸着塔の前段に、少ない量の濾過材を収納した前
処理用濾過処理装置を配置し、そこの濾過材によって、
排水中の汚染物質、主に浮遊物質（ＳＳ）などを最初に
除去することにより、吸着濾過材の交換量および処理量
を低減できるようにしたものである。具体的には、排水
を、内部に吸着濾過材を収納した吸着塔を用いて処理す
る吸着処理システムにおいて、前記吸着塔の前段に、そ
の吸着塔内に収納された吸着濾過材よりも少ない量であ
って排水を濾過する濾過材を収納した前処理用濾過処理
装置が設けられていることを特徴とする。In the adsorption treatment system of the present invention, a pretreatment filtration treatment device containing a small amount of filter material is arranged at the preceding stage of the adsorption tower, and the filter material therefor is used.
By first removing contaminants, mainly suspended solids (SS), etc. in the wastewater, the amount of replacement and treatment of the adsorptive filter material can be reduced. Specifically, in an adsorption treatment system in which wastewater is treated using an adsorption tower containing an adsorptive filtering material inside, an amount smaller than that of the adsorptive filtering material contained in the adsorptive column is provided at a stage preceding the adsorption tower. And a pretreatment filtration treatment device containing a filtration material for filtering wastewater is provided.
【０００９】この吸着処理システムによれば、吸着塔の
前段に、その吸着塔内に収納された吸着材よりも少ない
量の濾過材を収納した前処理用濾過処理装置が設けられ
ているから、排水は、まず、前処理用濾過処理装置内を
流れ、その内部に収納された濾過材によって大部分の浮
遊物質（ＳＳ）などが除去されたのち、後続の吸着塔へ
導入されて吸着濾過される。このような処理工程を踏む
と、通常、吸着塔の前段に位置する前処理用濾過処理装
置が、最初に、排水中に含まれる浮遊物質（ＳＳ）の堆
積によって圧損上昇するから、圧損上昇によって吸着濾
過材の交換が必要になった時点において、その前処理用
濾過処理装置の濾過材を交換する。この際、前処理用濾
過処理装置内の濾過材は、吸着塔内の吸着濾過材よりも
少ない量であるから、吸着塔内の吸着濾過材を交換する
より、濾過材の交換量を少なくでき、ひいては、吸着材
の処理量も低減できる。According to this adsorption treatment system, a pretreatment filtration treatment device that contains a smaller amount of filter material than the adsorbent contained in the adsorption tower is provided at a stage preceding the adsorption tower. The wastewater first flows through a pretreatment filtration device, and after most of the suspended solids (SS) and the like are removed by a filter medium contained therein, the wastewater is introduced into a subsequent adsorption tower to be adsorbed and filtered. You. When such a treatment step is taken, a filtration treatment device for pretreatment, which is usually located in the preceding stage of the adsorption tower, first increases pressure loss due to accumulation of suspended solids (SS) contained in wastewater. When replacement of the adsorptive filtering material becomes necessary, the filtering material of the pretreatment filtration device is replaced. At this time, since the amount of the filter material in the pretreatment filtration device is smaller than the amount of the filter material in the adsorption tower, the exchange amount of the filter material can be reduced as compared with the case of replacing the filter material in the adsorption tower. As a result, the throughput of the adsorbent can be reduced.
【００１０】なお、排水中に含まれる汚染物質として
は、炭素数６以上の難分解性芳香族化合物、トリクロロ
エチレン、テトラクロロエチレンなどを挙げることがで
きる。炭素数６以上の難分解性芳香族化合物としては、
ダイオキシン類、ＰＣＢ、ビスフェノール類などであ
る。[0010] The pollutants contained in the wastewater include hardly decomposable aromatic compounds having 6 or more carbon atoms, trichloroethylene, tetrachloroethylene and the like. As the hardly decomposable aromatic compound having 6 or more carbon atoms,
Dioxins, PCBs, bisphenols and the like.
【００１１】ここで、ダイオキシン類とは、ダイオキシ
ン類対策特別措置法（平成１２年１月１５日施行）に基
づく。具体的には、ジベンゾ−ｐ−ジオキシン、ジベン
ゾフラン、ビフェニルが有する２個のベンゼン環におけ
る水素原子が塩素原子や臭素元素により置換された化合
物の総称である。そして、この塩素原子や臭素原子の置
換数やベンゼン環における置換位置により多種多様な化
合物が存在する。これらダイオキシン類の中でも、１分
子中に塩素原子を４個以上有するポリ塩化物が特に人体
に対する毒性が高く、たとえば、ジベンゾ−ｐ−ジオキ
シンのポリ塩化物としては、２，３，７，８−テトラク
ロロジベンゾ−ｐ−ジオキシン、１，２，３，７，８−
ペンタクロロジベンゾ−ｐ−ジオキシン、１，２，３，
４，７，８−ヘキサクロロジベンゾ−ｐ−ジオキシン、
１，２，３，６，７，８−ヘキサクロロジベンゾ−ｐ−
ジオキシン、１，２，３，７，８，９−ヘキサクロロジ
ベンゾ−ｐ−ジオキシン、１，２，３，４，６，７，８
−ヘプタクロロジベンゾ−ｐ−ジオキシン、１，２，
３，４，６，７，８，９−オクタクロロジベンゾ−ｐ−
ジオキシンなどの化合物がある。Here, dioxins are based on the Law Concerning Special Measures against Dioxins (enforced on January 15, 2000). Specifically, it is a generic term for compounds in which hydrogen atoms in two benzene rings of dibenzo-p-dioxin, dibenzofuran, and biphenyl are replaced by chlorine atoms or bromine elements. There are various kinds of compounds depending on the number of chlorine atoms and bromine atoms to be substituted and the substitution positions in the benzene ring. Among these dioxins, polychlorides having 4 or more chlorine atoms in one molecule are particularly highly toxic to the human body. For example, polychlorides of dibenzo-p-dioxin include 2,3,7,8- Tetrachlorodibenzo-p-dioxin, 1,2,3,7,8-
Pentachlorodibenzo-p-dioxin, 1,2,3
4,7,8-hexachlorodibenzo-p-dioxin,
1,2,3,6,7,8-hexachlorodibenzo-p-
Dioxin, 1,2,3,7,8,9-hexachlorodibenzo-p-dioxin, 1,2,3,4,6,7,8
-Heptachlorodibenzo-p-dioxin, 1,2,2
3,4,6,7,8,9-octachlorodibenzo-p-
There are compounds such as dioxins.
【００１２】また、ジベンゾフランのポリ塩化物として
は、２，３，７，８−テトラクロロジベンゾフラン、
１，２，３，７，８−ペンタクロロジベンゾフラン、
２，３，４，７，８−ペンタクロロジベンゾフラン、
１，２，３，４，７，８−ヘキサクロロジベンゾフラ
ン、１，２，３，６，７，８−ヘキサクロロジベンゾフ
ラン、１，２，３，７，８，９−ヘキサクロロジベンゾ
フラン、２，３，４，６，７，８−ヘキサクロロジベン
ゾフラン、１，２，３，４，６，７，８−ヘプタクロロ
ジベンゾフラン、１，２，３，４，７，８、９−ヘプタ
クロロジベンゾフラン、１，２，３，４，６，７，８，
９−オクタクロロジベンゾフランなどの化合物がある。The polychlorinated dibenzofurans include 2,3,7,8-tetrachlorodibenzofuran,
1,2,3,7,8-pentachlorodibenzofuran,
2,3,4,7,8-pentachlorodibenzofuran,
1,2,3,4,7,8-hexachlorodibenzofuran, 1,2,3,6,7,8-hexachlorodibenzofuran, 1,2,3,7,8,9-hexachlorodibenzofuran, 2,3,4 , 6,7,8-Hexachlorodibenzofuran, 1,2,3,4,6,7,8-Heptachlorodibenzofuran, 1,2,3,4,7,8,9-Heptachlorodibenzofuran, 1,2,2 3,4,6,7,8,
There are compounds such as 9-octachlorodibenzofuran.
【００１３】さらに、ビフェニルのポリ塩化物について
は、オルト位以外に塩素原子が置換したコプラナー（Ｃ
ｏｐｌａｎａｒ）ＰＣＢ類があり、たとえば、３，
３’，４，４’−テトラクロロビフェニル、３，３’，
４，４’，５−ペンタクロロビフェニル、３，３’，
４，４’，５，５’−ヘキサクロロビフェニルなどの化
合物がある。また、ビスフェノール類としては、２，２
−ビス（４−ヒドロキシフェニル）プロパンや１，１−
ビス（４−ヒドロキシフェニル）シクロヘキサンなどの
化合物が挙げられる。Further, with respect to biphenyl polychloride, coplanar (C
oplanar) PCBs, for example, 3,
3 ′, 4,4′-tetrachlorobiphenyl, 3,3 ′,
4,4 ', 5-pentachlorobiphenyl, 3,3',
There are compounds such as 4,4 ', 5,5'-hexachlorobiphenyl. As bisphenols, 2,2
-Bis (4-hydroxyphenyl) propane or 1,1-
Compounds such as bis (4-hydroxyphenyl) cyclohexane are exemplified.
【００１４】前処理用濾過処理装置に収納する濾過材の
量を、吸着塔内に収納された吸着濾過材よりも少ない量
とするには、たとえば、排水導入口側面積が吸着塔内に
収納された吸着濾過材層と略同じで、かつ、高さ寸法が
吸着塔内に収納された吸着濾過材層よりも小さい構成と
することが好ましい。通常、排水中に含まれる浮遊物質
（ＳＳ）などは、吸着濾過材層の入口部分に堆積して圧
損上昇させるが、前処理用濾過処理装置に収納する濾過
材は、排水導入口側面積が吸着塔内の吸着濾過材層と略
同じであるから、圧損上昇によって濾過材の交換が必要
になるまでの時間を、排水を直接吸着塔に導入して運転
した場合と略同じにできる。その上、吸着塔は圧損上昇
速度が低下するので、充填した吸着濾過材の交換頻度は
激減する。この際、前処理濾過処理装置内の濾過材は吸
着塔内の吸着濾過材よりも少ない量であるから、吸着塔
内の吸着濾過材を交換するよりも濾過材の交換量を少な
くでき、ひいては、吸着材の処理量も低減できる。In order to make the amount of the filter medium stored in the pretreatment filtration apparatus smaller than the amount of the filter medium stored in the adsorption tower, for example, the area of the drain inlet side is stored in the adsorption tower. It is preferable to adopt a configuration that is substantially the same as the adsorbed filter medium layer provided and has a smaller height dimension than the adsorbed filter medium layer housed in the adsorption tower. Normally, suspended solids (SS) and the like contained in wastewater accumulate at the inlet of the adsorptive filter material layer and raise the pressure loss. However, the filter material stored in the pretreatment filtration device has a drainage inlet side area. Since it is almost the same as the adsorption filter medium layer in the adsorption tower, the time until the filter medium needs to be replaced due to a rise in pressure loss can be made substantially the same as when the wastewater is directly introduced into the adsorption tower for operation. In addition, since the pressure drop rise rate of the adsorption tower is reduced, the frequency of replacing the filled adsorption filter material is drastically reduced. At this time, since the amount of the filter material in the pretreatment filtration device is smaller than the amount of the filter material in the adsorption tower, the exchange amount of the filter material can be reduced as compared with the case where the filter material in the adsorption tower is replaced. In addition, the processing amount of the adsorbent can be reduced.
【００１５】この他には、本発明では、前記前処理濾過
処理装置の排水導入口側面積と吸着塔内に収納された吸
着濾過材層とは必ずしも同じでなくてもよい。たとえ
ば、前記前処理用濾過処理装置に収納される濾過材の層
は、排水導入口側面積が前記吸着塔内に収納された吸着
濾過材層の面積より小さい構成としてもよい。この場
合、前処理濾過処理装置の圧損上昇が速くなり、その中
の濾過材の交換頻度が増加するが、面積が小さい分、濾
過材の取り替えに際しての作業性がよいという利点があ
る。逆に、前記前処理用濾過処理装置に収納される濾過
材の層が排水導入口側面積が前記吸着塔内に収納された
吸着濾過材層の面積より大きい場合には、圧損上昇によ
って濾過材の交換が必要となるまでの時間を、排水を直
接吸着塔に導入して運転した場合よりも長くできるが、
面積が大きい分、取り替え作業性は良くない。従って、
前処理濾過処理装置の排水導入口側面積は、吸着塔内の
吸着濾過材層と略同じが好ましいが、使用者のニーズに
合わせて変更すればよい。[0015] In addition, in the present invention, the area of the pretreatment filtration apparatus on the side of the drainage inlet may not necessarily be the same as the layer of the adsorbed filter medium accommodated in the adsorption tower. For example, the filter material layer stored in the pretreatment filtration device may have a configuration in which the area of the drainage inlet side is smaller than the area of the adsorption filter material layer stored in the adsorption tower. In this case, the pressure loss of the pretreatment filtration device increases quickly, and the frequency of replacement of the filter medium therein increases, but the small area has the advantage of good workability when replacing the filter medium. Conversely, if the layer of the filter medium accommodated in the pretreatment filtration device has a drainage inlet side area larger than the area of the adsorptive filter medium layer accommodated in the adsorption tower, the filter medium is increased due to an increase in pressure loss. The time before replacement is required can be longer than when the wastewater is introduced directly into the adsorption tower and operated,
Replacement workability is not good because of the large area. Therefore,
The area of the pretreatment filtration device on the side of the drainage introduction port is preferably substantially the same as that of the adsorption filter material layer in the adsorption tower, but may be changed according to the needs of the user.
【００１６】吸着濾過材の交換にあたっては、一括して
装置本体から取り外し可能かつ取り付け可能に形成され
ていることが好ましい。たとえば、カセット化して、取
り外し、取り付け可能に構成することが好ましい。この
ようにすれば、たとえば、吸着濾過材に吸着した有害物
質を含む浮遊物質（ＳＳ）などが飛散したり、手に触れ
たりしないように取り扱うことができる。吸着濾過材と
しては、活性炭または活性コークスが好適である。これ
らであれば、焼却処理ができるなど使用後の処理が容易
になるとともに、システム全体の浮遊物質の吸着性能も
向上させることができる。When the adsorbent filter material is replaced, it is preferable that the adsorbent filter material is formed so as to be removable and attachable from the apparatus body at a time. For example, it is preferable to form a cassette so as to be detachable and attachable. In this way, for example, the suspended solids (SS) containing harmful substances adsorbed on the adsorption filter medium can be handled so as not to be scattered or touched by the hand. Activated carbon or activated coke is preferred as the adsorption filter material. In this case, the post-use treatment such as incineration can be facilitated, and the performance of adsorbing suspended substances in the entire system can be improved.
【００１７】本発明では、濾過材として、前述の活性炭
または活性コークスからなる吸着濾過材に代えて、カー
トリッジフィルタ、燒結金属の粒子間に細孔が形成され
たフィルタ、高分子膜に微細な貫通孔が形成された分離
膜、あるいは、砂を敷き詰めて形成されたフィルタな
ど、排水を濾過するタイプを用いてもよい。カートリッ
ジフィルタは、繊維、樹脂含浸濾紙、多孔性陶磁器、多
孔性ステンレス、多孔性プラスチック等の濾過エレメン
トが容器内に収納されてなるフィルタである。このフィ
ルタはカートリッジ式であるため、前処理用濾過処理装
置に対して取り付け取り外しが可能であり、濾過材の交
換作業が容易に行える。燒結金属を利用したフィルタ
は、ステンレス鋼等の金属において、粒径の均一な微粉
末の表面を溶融して相互に焼結させて焼結粒子間の間隔
で細孔を形成させたフィルタである。In the present invention, a cartridge filter, a filter having pores formed between sintered metal particles, and a fine penetration through a polymer membrane are used in place of the above-mentioned adsorptive filtration material made of activated carbon or activated coke. A type that filters drainage, such as a separation membrane having holes or a filter formed by spreading sand, may be used. The cartridge filter is a filter in which a filter element such as fiber, resin-impregnated filter paper, porous porcelain, porous stainless steel, and porous plastic is contained in a container. Since this filter is of a cartridge type, it can be attached to and detached from the pretreatment filtration treatment device, and the work of replacing the filter material can be easily performed. A filter using a sintered metal is a filter made of a metal such as stainless steel in which the surfaces of fine powder having a uniform particle size are melted and mutually sintered to form pores at intervals between sintered particles. .
【００１８】分離膜は高分子膜に多数の均一な孔径をも
った微細な貫通孔を形成したフィルタである。分離膜
は、高分子溶液の相変化を利用する溶媒−ゲル化法、抽
出法、溶融急冷法、２軸延伸法、電子線照射−エッチン
グ法などによって、高分子膜中に多数の均一な孔径をも
った微細な貫通細孔を形成することで製造される。例え
ば、親水性高分子であるＰＶＡ（ポリビニルアルコー
ル）を素材として中空糸膜を形成したもの（商品名、ク
ラレＳＦフィルタ）が分離膜として例示できる。砂を敷
き詰めて形成されたフィルタは、種々の形態のものが用
いられるが、例えば、塔内部の下部に砂利層を形成し、
その上に砂層を形成する構造のものであってもよい。こ
の砂を敷き詰めて形成されたフィルタや分離膜は、カー
トリッジタイプとすることもできる。The separation membrane is a filter in which a large number of fine through-holes having a uniform diameter are formed in a polymer membrane. Separation membranes have a large number of uniform pore diameters in the polymer membrane by solvent-gelation, extraction, melt quenching, biaxial stretching, electron beam irradiation-etching, etc., utilizing the phase change of the polymer solution. It is produced by forming fine through pores having For example, a material in which a hollow fiber membrane is formed using PVA (polyvinyl alcohol), which is a hydrophilic polymer, as a material (trade name, Kuraray SF filter) can be exemplified as the separation membrane. Filters formed by laying sand are used in various forms, for example, a gravel layer is formed at the bottom inside the tower,
A structure in which a sand layer is formed thereon may be used. The filter or separation membrane formed by laying the sand may be of a cartridge type.
【００１９】また、吸着塔の前段に、前処理用濾過処理
装置を２つ以上並列に設けるようにすれば、連続運転が
可能である。つまり、１つの前記前処理用濾過処理装置
が、浮遊物質（ＳＳ）などの堆積による圧損上昇によっ
て吸着材の交換が必要になったとき、その前記前処理用
濾過処理装置から他の前記前処理用濾過処理装置に切り
替えれば、吸着処理運転を継続することができる。この
間、濾過材の交換が必要になった前記前処理用濾過処理
装置については、濾過材の交換作業を行い、いつでも運
転できる状態に待機させておく。If two or more pretreatment filtration devices are provided in parallel at the front stage of the adsorption tower, continuous operation is possible. That is, when one of the pretreatment filtration processing apparatuses needs to exchange an adsorbent due to a pressure loss increase due to accumulation of suspended solids (SS) or the like, the other pretreatment filtration processing apparatus is replaced with another pretreatment filtration processing apparatus. If the operation is switched to the filtration device, the adsorption operation can be continued. During this time, for the pretreatment filtration processing device that requires replacement of the filter medium, the filter medium is replaced and the apparatus is kept ready for operation at any time.
【００２０】前処理用濾過処理装置の切り替えにあたっ
て、新たに運転する前記前処理用濾過処理装置について
は、予め浮遊物質、珪藻土、粉末活性炭などを濾過材に
プレコートするのが好ましく、特に、濾過材の後処理の
関係から、浮遊物質や粉末活性炭が好ましい。一般に、
吸着塔の場合、吸着濾過材層にある程度の浮遊物質（Ｓ
Ｓ）が付着して圧損が生じた後でないと、十分な吸着性
能が発揮されない。そこで、予め、浮遊物質などを濾過
材にプレコートしておけば、切り替え初期から十分な濾
過性能を発揮させることができる。When the pre-treatment filtration apparatus is switched, the pre-treatment filtration apparatus to be newly operated is preferably pre-coated with a suspended substance, diatomaceous earth, powdered activated carbon, etc., in advance, and in particular, the filtration medium is preferably pre-coated. From the viewpoint of post-treatment, suspended substances and powdered activated carbon are preferred. In general,
In the case of an adsorption tower, a certain amount of suspended substances (S
Unless the pressure loss occurs due to the attachment of S), sufficient adsorption performance cannot be exhibited. Therefore, if a filtration material is pre-coated with a floating substance in advance, sufficient filtration performance can be exhibited from the initial stage of switching.
【００２１】[0021]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。 （全体構成）図１は、本実施形態の吸着処理システムを
示している。同吸着処理システムは、排水を流入する流
入配管３および処理水を流出させる流出配管４を有し、
かつ、内部に吸着濾過材としての活性炭層２を収納した
複数塔（ここでは４塔）の活性炭吸着塔１１，１２，１
３，１４と、これら活性炭吸着塔１１〜１４の前段に互
いに並列に接続配置された前処理用濾過処理装置として
の２塔の前処理用活性炭吸着塔１５，１６と、活性炭吸
着塔１１〜１４をループ状に連結する連結配管２０と、
各活性炭吸着塔１１〜１４の流入配管３同士を連結する
共通流入配管３０と、各活性炭吸着塔１１〜１４の流出
配管４同士を連結するとともに処理水放出路に連結され
た共通流出配管４０と、排水源からの排水を前処理用活
性炭吸着塔１５，１６および共通流入配管３０を介して
活性炭吸着塔１１〜１４に選択的に供給する排水選択供
給手段５０と、いずれか活性炭吸着塔１１〜１４からの
処理水を共通流出配管４０を介して処理水放出路に放出
する放出選択手段６０とを備える。Embodiments of the present invention will be described below with reference to the drawings. (Overall Configuration) FIG. 1 shows an adsorption processing system of the present embodiment. The adsorption treatment system has an inflow pipe 3 for inflowing wastewater and an outflow pipe 4 for outflow of treated water,
Further, a plurality of (here, four) activated carbon adsorption towers 11, 12, 1 containing an activated carbon layer 2 as an adsorption filter material therein.
3 and 14, two pretreatment activated carbon adsorption towers 15 and 16 as pretreatment filtration treatment devices connected in parallel with each other in front of the activated carbon adsorption towers 11 to 14, and activated carbon adsorption towers 11 to 14 Connecting pipe 20 for connecting
A common inflow pipe 30 connecting the inflow pipes 3 of the activated carbon adsorption towers 11 to 14, a common outflow pipe 40 connected to the outflow pipes 4 of the activated carbon adsorption towers 11 to 14 and connected to the treated water discharge passage; Wastewater selective supply means 50 for selectively supplying wastewater from a wastewater source to activated carbon adsorption towers 11 to 14 via activated carbon adsorption towers 15 and 16 for pretreatment and common inflow pipe 30, and any one of activated carbon adsorption towers 11 to 14; And a discharge selecting means 60 for discharging the treated water from 14 to the treated water discharge passage via the common outflow pipe 40.
【００２２】（活性炭吸着塔）活性炭吸着塔１１〜１４
は、図２に示すように、円筒形状に形成されかつ上下端
に鏡板１Ａ，１Ｂを有する塔本体１と、この塔本体１の
中間部にサポート（図示省略）を介して支持された活性
炭層２と、この活性炭層２より上方の塔本体１の上部位
置に挿入配置され排水を導入する流入配管３と、活性炭
層２より下方の塔本体１の下部位置に挿入配置され処理
水を流出する流出配管４とを備える。活性炭層２には、
活性炭または活性コークスからなる吸着濾過材が用いら
れている。これらは、細孔半径１０〜５０オングストロ
ームの細孔容量が、０．１０ミリリットル／ｇ以上、好
ましくは、０．１４ミリリットル／ｇ以上であるが、こ
れらに限られない。原料は、石炭、ヤシガラ、ビート
（泥炭）、木粉などを用いることができる。中でも、石
炭が好ましく、とくに、瀝青炭が好ましい。形状は、粒
状、破砕炭、造粒炭（円柱状、球状）いずれも使用可能
である。平均粒径は、通常、０．１〜１０ｍｍ程度であ
る。(Activated carbon adsorption tower) Activated carbon adsorption towers 11 to 14
As shown in FIG. 2, a tower body 1 formed in a cylindrical shape and having end plates 1A and 1B at upper and lower ends, and an activated carbon layer supported at an intermediate portion of the tower body 1 via a support (not shown) 2, an inflow pipe 3 inserted at an upper position of the tower main body 1 above the activated carbon layer 2 to introduce drainage, and an inserted pipe arranged at a lower position of the tower main body 1 below the activated carbon layer 2 to discharge treated water. And an outflow pipe 4. In the activated carbon layer 2,
An adsorption filter made of activated carbon or activated coke is used. These have a pore volume with a pore radius of 10 to 50 angstroms of 0.10 ml / g or more, preferably 0.14 ml / g or more, but are not limited thereto. As a raw material, coal, coconut shell, beet (peat), wood flour, or the like can be used. Among them, coal is preferred, and bituminous coal is particularly preferred. As for the shape, any of granular, crushed coal and granulated coal (columnar and spherical) can be used. The average particle size is usually about 0.1 to 10 mm.
【００２３】流入配管３から活性炭吸着塔１１〜１４内
に導入された排水は、活性炭層２内を流れ落ちて処理さ
れたのち、流出配管４から処理水として流出される。排
水は、活性炭吸着塔１１に導入する前に塩酸、硫酸、苛
性ソーダなどでｐＨ５．０〜９．５、好ましくは、ｐＨ
６．０〜８．５に調整しておくことが望ましい。活性炭
吸着塔１１〜１４内での通水は、下向流、上向流どちら
でもよいが、下向流が好ましい。活性炭吸着塔１１〜１
４内の温度は、０〜１００℃、好ましくは、０〜６０℃
がよい。活性炭吸着塔１１〜１４内の圧力は、常圧〜２
ＭＰａ（Ｇ）、好ましくは、常圧〜０．５ＭＰａ（Ｇ）
がよい。活性炭吸着塔１１〜１４内の空間速度（ＬＨＳ
Ｖ）は、０．０１〜１００（ｈ-1）、好ましくは、０．
１〜１０（ｈ-1）がよい。活性炭吸着塔１１〜１４内の
空塔速度は、低すぎると吸着材層内の偏流が起こり、高
すぎると吸着塔の圧損が大きくなるため、ここでは、偏
流防止可能な範囲でできる限り低い空塔速度、具体的に
は、０．５〜１０．０ｍ／ｈ、好ましくは、１．５〜
３．０ｍ／ｈとしてある。The wastewater introduced from the inflow pipe 3 into the activated carbon adsorption towers 11 to 14 flows down in the activated carbon layer 2 and is treated, and then flows out from the outflow pipe 4 as treated water. Before the wastewater is introduced into the activated carbon adsorption tower 11, the pH is adjusted to 5.0 to 9.5 with hydrochloric acid, sulfuric acid, caustic soda, or the like, preferably to pH 5.0.
It is desirable to adjust it to 6.0 to 8.5. The flow of water in the activated carbon adsorption towers 11 to 14 may be either a downward flow or an upward flow, but a downward flow is preferable. Activated carbon adsorption tower 11-1
The temperature in 4 is 0-100 degreeC, Preferably, 0-60 degreeC
Is good. The pressure in the activated carbon adsorption towers 11 to 14 is from normal pressure to 2
MPa (G), preferably normal pressure to 0.5 MPa (G)
Is good. Space velocity (LHS) in activated carbon adsorption towers 11 to 14
V) is from 0.01 to 100 (h @ -1), preferably from 0.1 to 100 (h @ -1).
1 to 10 (h-1) is preferable. If the superficial velocity in the activated carbon adsorption towers 11 to 14 is too low, the drift in the adsorbent layer occurs. If the superficial velocity is too high, the pressure loss of the adsorption tower becomes large. Tower speed, specifically 0.5 to 10.0 m / h, preferably 1.5 to 10.0 m / h
3.0 m / h.
【００２４】（前処理用活性炭吸着塔）前処理用活性炭
吸着塔１５，１６は、活性炭吸着塔１１〜１４と同じよ
うに、塔本体１と、活性炭層２と、流入配管３と、流出
配管４とを備えている。ただ、塔本体１および活性炭層
２の高さ寸法が活性炭吸着塔１１〜１４のものに対して
小さい。つまり、前処理用活性炭吸着塔１５，１６内の
活性炭層２は、活性炭吸着塔１１〜１４内の活性炭層２
よりも少ない量に形成され、具体的には、排水導入口側
面積が吸着塔１１〜１４内の活性炭層２と略同じである
が、高さ寸法が吸着塔１１〜１４内の活性炭層２よりも
小さく形成されており、好ましくは、高さ寸法が吸着塔
１１〜１４内の活性炭層２の１／２以下がよい。また、
一括して塔本体１（装置本体）から取り外し可能かつ取
り付け可能に形成されている。つまり、カセット化され
て形成されている。なお、前処理用活性炭吸着塔１５，
１６の流入配管３は、バルブ７１，７２を介して連結さ
れたのち、排水源に連結され、流出配管４はバルブ７
３，７４を介して連結されたのち、管路３１に連結され
ている。(Activated carbon adsorption tower for pretreatment) The activated carbon adsorption towers 15 and 16 for pretreatment are the same as the activated carbon adsorption towers 11 to 14, the tower body 1, the activated carbon layer 2, the inflow pipe 3, and the outflow pipe. 4 is provided. However, the height dimensions of the tower main body 1 and the activated carbon layer 2 are smaller than those of the activated carbon adsorption towers 11 to 14. That is, the activated carbon layer 2 in the pretreatment activated carbon adsorption towers 15 and 16 is activated carbon layer 2 in the activated carbon adsorption towers 11 to 14.
It is formed in an amount smaller than that of the activated carbon layer 2 in the adsorption towers 11 to 14, specifically, the drainage inlet side area is substantially the same as the activated carbon layer 2 in the adsorption towers 11 to 14. It is preferable that the height dimension is not more than の of the activated carbon layer 2 in the adsorption towers 11 to 14. Also,
It is formed so as to be removable and attachable from the tower body 1 (apparatus body) collectively. That is, it is formed as a cassette. The activated carbon adsorption tower 15 for pretreatment,
The 16 inflow pipes 3 are connected via valves 71 and 72 and then to a drainage source, and the outflow pipe 4 is connected to a valve 7.
After being connected via 3, 74, it is connected to the conduit 31.
【００２５】（連結配管）連結配管２０は、活性炭吸着
塔１１の流入配管３と活性炭吸着塔１４の流出配管４と
を連結し途中にバルブ２１Ａ，２１Ｂを有する管路２１
と、活性炭吸着塔１１の流出配管４と活性炭吸着塔１２
の流入配管３とを連結し途中にバルブ２２Ａを有する管
路２２と、活性炭吸着塔１２の流出配管４と活性炭吸着
塔１３の流入配管３とを連結し途中にバルブ２３Ａを有
する管路２３と、活性炭吸着塔１３の流出配管４と活性
炭吸着塔１４の流入配管３とを連結し途中にバルブ２４
Ａを有する管路２４とを備え、これら活性炭吸着塔１１
〜１４をループ状に連結している。(Connecting Pipe) A connecting pipe 20 connects the inflow pipe 3 of the activated carbon adsorption tower 11 and the outflow pipe 4 of the activated carbon adsorption tower 14, and has a pipe 21 having valves 21A and 21B on the way.
Outflow pipe 4 of activated carbon adsorption tower 11 and activated carbon adsorption tower 12
A pipe 22 having a valve 22A on the way connecting the inflow pipe 3 of the above, and a pipe 23 connecting the outflow pipe 4 of the activated carbon adsorption tower 12 and the inflow pipe 3 of the activated carbon adsorption tower 13 and having a valve 23A on the way. Connecting the outflow pipe 4 of the activated carbon adsorption tower 13 and the inflow pipe 3 of the activated carbon adsorption tower 14,
A having a pipe 24 having an A
To 14 are connected in a loop.
【００２６】（共通流入配管）共通流入配管３０は、一
端が各活性炭吸着塔１１〜１４の流入配管３にそれぞれ
連結され途中にバルブ５１，５２，５３，５４を有する
管路３１，３２，３３，３４と、これら管路３２〜３４
の他端に共通接続されバルブ５５を介して前記管路３１
に連結された管路３５とを備え、各活性炭吸着塔１１〜
１４の流入配管３同士を接続している。(Common Inflow Pipe) One end of the common inflow pipe 30 is connected to the inflow pipe 3 of each of the activated carbon adsorption towers 11 to 14, and pipes 31, 32, 33 having valves 51, 52, 53, 54 on the way. , 34 and these conduits 32-34
Is connected in common to the other end of the
And the activated carbon adsorption towers 11 to
Fourteen inflow pipes 3 are connected to each other.
【００２７】（共通流出配管）共通流出配管４０は、各
活性炭吸着塔１１〜１４の流出配管４にバルブ６１，６
２，６３，６４を介して連結された管路４１，４２，４
３，４４と、これらの管路４１〜４４に共通接続されか
つ管路４４側にバルブ６５を有する管路４５とを備え
る。管路４４は、処理水放出路に接続されている。(Common Outflow Pipe) The common outflow pipe 40 is connected to the outflow pipe 4 of each of the activated carbon adsorption towers 11 to 14 by a valve 61, 6.
Pipe lines 41, 42, 4 connected via 2, 63, 64
3 and 44, and a pipe 45 commonly connected to these pipes 41 to 44 and having a valve 65 on the pipe 44 side. The pipe 44 is connected to the treated water discharge passage.
【００２８】（排水選択供給手段および放出選択手段）
バルブ５１〜５５によって、排水源からの排水を前処理
用活性炭吸着塔１５，１６および共通流入配管３０を介
して活性炭吸着塔１１〜１４に選択的に供給する排水選
択供給手段５０が、バルブ６１〜６５によって、いずれ
か活性炭吸着塔１１〜１４からの処理水を共通流出配管
４０を介して処理水放出路に放出する放出選択手段６０
が構成されている。(Drainage selective supply means and discharge selection means)
The drainage selection supply means 50 for selectively supplying wastewater from the wastewater source to the activated carbon adsorption towers 11 to 14 via the activated carbon adsorption towers 15 and 16 for pretreatment and the common inflow pipe 30 by the valves 51 to 55 is provided with a valve 61. To 65, a discharge selecting means 60 for discharging the treated water from any of the activated carbon adsorption towers 11 to 14 to the treated water discharge passage through the common outflow pipe 40.
Is configured.
【００２９】（運転方法）まず、排水源からの排水を、
前処理用活性炭吸着塔１５、活性炭吸着塔１１，１２，
１３，１４に順番に流通させる。具体的には、バルブ７
１，７３，５１，２２Ａ，２３Ａ，２４Ａ，６４を開
け、他のバルブを全て閉じた状態において、排水源から
の排水をポンプなどで圧送する。すると、排水は、バル
ブ７１を通って前処理用活性炭吸着塔１５を流通し、排
水中の汚染物質、たとえば、浮遊物質（ＳＳ）などの大
部分がこの前処理用活性炭吸着塔１５の活性炭層２によ
って吸着処理される。続いて、前処理用活性炭吸着塔１
５からの処理水は、管路３１およびバルブ５１を通って
活性炭吸着塔１１，１２，１３，１４を順番に流通し、
これらの活性炭吸着塔１１〜１４の活性炭層２によって
吸着処理されたのち、バルブ６４および管路４４を通っ
て処理水放出路へ放出される（図３（Ａ）参照）。(Operating method) First, the drainage from the drainage source is
Activated carbon adsorption tower 15 for pretreatment, activated carbon adsorption towers 11, 12,
13 and 14 in order. Specifically, the valve 7
With the 1,73,51,22A, 23A, 24A, 64 opened and all other valves closed, the drainage from the drainage source is pumped by a pump or the like. Then, the wastewater flows through the activated carbon adsorption tower 15 for pretreatment through the valve 71, and most of the contaminants in the wastewater, for example, suspended solids (SS), are stored in the activated carbon bed of the activated carbon adsorption tower 15 for pretreatment. 2 to perform an adsorption process. Then, activated carbon adsorption tower 1 for pretreatment
The treated water from 5 flows through the activated carbon adsorption towers 11, 12, 13, 14 in order through the pipe 31 and the valve 51,
After being adsorbed by the activated carbon layer 2 of the activated carbon adsorption towers 11 to 14, the water is discharged to a treated water discharge passage through a valve 64 and a pipe 44 (see FIG. 3A).
【００３０】このようにして運転を行っていくと、通
常、流通順位先頭の前処理用活性炭吸着塔１５が飽和吸
着量に達する。前処理用活性炭吸着塔１５が飽和吸着量
に達したとき、前処理用活性炭吸着塔１５への通水を停
止し、排水源からの排水を前処理用活性炭吸着塔１６へ
切り替える。つまり、バルブ７２，７４を開き、バルブ
７１，７３を閉じる。すると、排水は、バルブ７２を通
って前処理用活性炭吸着塔１６を流通し、続いて、活性
炭吸着塔１１，１２，１３，１４を順番に流れたのち、
バルブ６４および管路４４を通って処理水放出路へ放出
される（図３（Ｂ）参照）。When the operation is performed in this manner, the activated carbon adsorption tower 15 for pretreatment at the top of the distribution order normally reaches the saturated adsorption amount. When the pretreatment activated carbon adsorption tower 15 reaches the saturated adsorption amount, the flow of water to the pretreatment activated carbon adsorption tower 15 is stopped, and the wastewater from the drain source is switched to the pretreatment activated carbon adsorption tower 16. That is, the valves 72 and 74 are opened, and the valves 71 and 73 are closed. Then, the wastewater flows through the activated carbon adsorption tower 16 for pretreatment through the valve 72, and then flows through the activated carbon adsorption towers 11, 12, 13, and 14 in order.
The water is discharged to the treated water discharge passage through the valve 64 and the conduit 44 (see FIG. 3B).
【００３１】この間、前処理用活性炭吸着塔１５につい
ては活性炭層２の交換作業を行うとともに、前処理用活
性炭吸着塔１５内の活性炭層２に対して、予め浮遊物質
（ＳＳ）をプレコートしておく。つまり、前処理用活性
炭吸着塔１５の流入配管３から浮遊物質（ＳＳ）を含む
水を供給して、浮遊物質（ＳＳ）をプレコートしてお
く。やがて、前処理用活性炭吸着塔１６が飽和吸着量に
達したとき、前処理用活性炭吸着塔１６への通水を停止
し、今度は、排水源からの排水を前処理用活性炭吸着塔
１５へ切り替える。このようにして、前処理用活性炭吸
着塔１５，１６を切り替えながら運転を行っていく。During this time, the activated carbon layer 2 in the pretreatment activated carbon adsorption tower 15 is exchanged, and the activated carbon layer 2 in the pretreatment activated carbon adsorption tower 15 is precoated with a suspended substance (SS) in advance. deep. That is, water containing the suspended substance (SS) is supplied from the inflow pipe 3 of the activated carbon adsorption tower 15 for pretreatment to pre-coat the suspended substance (SS). Eventually, when the pretreatment activated carbon adsorption tower 16 reaches the saturated adsorption amount, the flow of water to the pretreatment activated carbon adsorption tower 16 is stopped, and the wastewater from the drainage source is then transferred to the pretreatment activated carbon adsorption tower 15. Switch. In this way, the operation is performed while switching the activated carbon adsorption towers 15 and 16 for pretreatment.
【００３２】一方、このような運転を継続していくと、
前処理用活性炭吸着塔１５，１６より後続の活性炭吸着
塔１１〜１４についても、活性炭の交換が必要な場合が
生じる。これについても、通常、流通順位先頭の活性炭
吸着塔１１が飽和吸着量に達する。この際、各活性炭吸
着塔１１〜１４の流出配管４からの処理水を定期的に分
析して、吸着量が限界に達したか否かを判定するように
するのがよい。ちなみに、ダイオキシン類の場合には、
処理水のダイオキシン類濃度が１０ｐｇ−ＴＥＱ／Ｌ以
上になれば交換を行う（図４（Ａ）参照）。On the other hand, if such operation is continued,
In the activated carbon adsorption towers 11 to 14 subsequent to the pretreatment activated carbon adsorption towers 15 and 16, there is a case where the activated carbon needs to be replaced. Also in this case, the activated carbon adsorption tower 11 at the top of the distribution order usually reaches the saturated adsorption amount. At this time, it is preferable to periodically analyze the treated water from the outflow pipe 4 of each of the activated carbon adsorption towers 11 to 14 to determine whether or not the amount of adsorption has reached a limit. By the way, in the case of dioxins,
When the concentration of dioxins in the treated water becomes 10 pg-TEQ / L or more, replacement is performed (see FIG. 4A).
【００３３】流通順位先頭の活性炭吸着塔１１が飽和吸
着量に達したら、その活性炭吸着塔１１への通水を停止
し、排水選択供給手段５０によって、排水を共通流入配
管３０を介して、飽和吸着量に達した活性炭吸着塔１１
を除く、次段の活性炭吸着塔１２から流通させて吸着処
理を継続する。具体的には、バルブ５５，５２を開け、
バルブ５１，２２Ａを閉じる。すると、排水は、管路３
１、バルブ５５，５２を通って活性炭吸着塔１２，１
３，１４を順番に流れたのち、バルブ６４および管路４
４を通って処理水放出路へ放出される（図４（Ｂ）参
照）。When the activated carbon adsorption tower 11 at the top of the distribution order reaches the saturated adsorption amount, the flow of water to the activated carbon adsorption tower 11 is stopped, and the wastewater is selectively saturated by the wastewater selective supply means 50 through the common inflow pipe 30. Activated carbon adsorption tower 11 which reached the amount of adsorption
, And the adsorption treatment is continued by flowing through the activated carbon adsorption tower 12 at the next stage. Specifically, the valves 55 and 52 are opened,
The valves 51 and 22A are closed. Then, drainage will be in pipeline 3
1. Activated carbon adsorption towers 12, 1 through valves 55, 52
After flowing in the order of 3 and 14, the valve 64 and the line 4
4 and discharged to the treated water discharge passage (see FIG. 4B).
【００３４】この間、活性炭吸着塔１１については活性
炭層２の交換作業を行う。活性炭交換作業完了後に、そ
の活性炭吸着塔１１を流通順位最終番目として排水を流
通させる。具体的には、バルブ２１Ｂ，２１Ａ，６１，
６５を開け、バルブ６４を閉じる。すると、排水は、管
路３１、バルブ５５，５２を通って活性炭吸着塔１２，
１３，１４，１１を順番に流れたのち、バルブ６１，６
５，管路４５，４４を通って処理水放出路へ放出される
（図４（Ｃ）参照）。In the meantime, in the activated carbon adsorption tower 11, replacement of the activated carbon layer 2 is performed. After the completion of the activated carbon exchange operation, the activated carbon adsorption tower 11 is set as the last in the distribution order and the wastewater is distributed. Specifically, the valves 21B, 21A, 61,
Open 65 and close valve 64. Then, the waste water passes through the pipe 31, the valves 55 and 52, and the activated carbon adsorption tower 12,
After flowing through 13, 14, 11 in order, the valves 61, 6
5. The water is discharged to the treated water discharge passage through the conduits 45 and 44 (see FIG. 4C).
【００３５】その後、次の活性炭吸着塔１２が飽和吸着
量に達したら、同様にしてその活性炭吸着塔１２の活性
炭交換作業を行い（図４（Ｄ）参照）、活性炭交換作業
完了後にその活性炭吸着塔１２を流通順位最終番目とし
て排水を流通させる（図４（Ｅ）参照）。このようにし
て、排水の流通順位先頭の活性炭吸着塔１１から順番に
活性炭の交換作業を行うとともに、活性炭交換作業完了
後に、活性炭交換完了後の活性炭吸着塔１１〜１４を流
通順位最終番目として排水を流通させる。Thereafter, when the next activated carbon adsorption tower 12 reaches the saturated adsorption amount, the activated carbon is exchanged in the activated carbon adsorption tower 12 in the same manner (see FIG. 4 (D)). The wastewater is circulated with the tower 12 as the last in the distribution order (see FIG. 4 (E)). In this way, the activated carbon is exchanged in order from the activated carbon adsorption tower 11 at the top of the drainage distribution order, and after the activated carbon exchange work is completed, the activated carbon adsorption towers 11 to 14 after the completion of the activated carbon exchange are set as the last in the distribution order and the drainage is performed. Is distributed.
【００３６】従って、本実施形態によれば、活性炭吸着
塔１１〜１４の前段に、少ない量の活性炭層２を収納し
た前処理用活性炭吸着塔１５，１６を配置し、そこの活
性炭層２によって、排水中の汚染物質、主に浮遊物質
（ＳＳ）などの大部分を最初に吸着除去するようにした
ので、活性炭吸着塔１１〜１４内の活性炭層２を交換す
るよりも活性炭の交換量および処理量を低減できる。Therefore, according to the present embodiment, the activated carbon adsorption towers 15 and 16 for pretreatment containing a small amount of the activated carbon layer 2 are arranged in front of the activated carbon adsorption towers 11 to 14, and the activated carbon layer 2 therein is used. First, most of the pollutants in the wastewater, mainly suspended substances (SS), etc. are adsorbed and removed. The processing amount can be reduced.
【００３７】また、前処理用活性炭吸着塔１５，１６内
の活性炭層２は、排水導入口側面積が活性炭吸着塔１１
〜１４内の活性炭層２と略同じで、かつ、高さ寸法がそ
の活性炭層２よりも小さく、好ましくは、１／２以下に
形成されているから、吸着材の交換量、処理量を少なく
して、従来と略同じ運転を実現できる。前処理用活性炭
吸着塔１５，１６内の活性炭層２は、カセット化して、
取り外し、取り付け可能に構成されているから、活性炭
層２の水洗・再充填操作を容易に行える。Further, the activated carbon layer 2 in the activated carbon adsorption towers 15 and 16 for pretreatment has an area on the side of the drainage inlet on the activated carbon adsorption towers 11 and 16.
14 and the height dimension is smaller than the activated carbon layer 2 and preferably formed to be 、 or less. As a result, substantially the same operation as the conventional operation can be realized. The activated carbon layer 2 in the activated carbon adsorption towers 15 and 16 for pretreatment is converted into a cassette,
Since it is configured to be detachable and attachable, washing and refilling of the activated carbon layer 2 with water can be easily performed.
【００３８】また、前処理用活性炭吸着塔１５，１６
は、２塔並列配置されているから、１つの前処理用活性
炭吸着塔１５が、浮遊物質（ＳＳ）の堆積による圧損上
昇によって活性炭層２の交換が必要になったとき、その
前処理用活性炭吸着塔１５から他の前処理用活性炭吸着
塔１６に切り替えれば、吸着処理運転を継続することが
できる。この間、活性炭層２の交換が必要になった前処
理用活性炭吸着塔１５については、活性炭層２の交換作
業を行い、いつでも運転できる状態に待機させておくこ
とができる。しかも、切り替えにあたって、新たに運転
する前処理用活性炭吸着塔１６については、予め浮遊物
質を活性炭層２にプレコートするようにしたので、切り
替え初期から十分な吸着性能を発揮させることができ
る。Activated carbon adsorption towers 15 and 16 for pretreatment
Are arranged in parallel with each other, when one pretreatment activated carbon adsorption tower 15 needs to exchange the activated carbon layer 2 due to a pressure loss increase due to the accumulation of suspended solids (SS), the pretreatment activated carbon By switching from the adsorption tower 15 to another activated carbon adsorption tower 16 for pretreatment, the adsorption treatment operation can be continued. During this time, in the activated carbon adsorption tower 15 for pretreatment that requires replacement of the activated carbon layer 2, the activated carbon layer 2 can be exchanged and kept ready for operation at any time. In addition, at the time of switching, the activated carbon adsorption tower 16 for pretreatment, which is newly operated, is pre-coated with the suspended substance on the activated carbon layer 2 in advance, so that sufficient adsorption performance can be exhibited from the initial stage of switching.
【００３９】また、活性炭吸着塔１１〜１４について
も、活性炭交換作業時以外は全ての活性炭吸着塔１１〜
１４が運転されている状態にあるから、これら活性炭吸
着塔１１〜１４を効率的に運転できる。しかも、排水を
これらの活性炭吸着塔１１〜１４を用いて吸着処理する
から、排水を効率的に処理することができる。また、通
水順位先頭の活性炭吸着塔の活性炭交換時にも、他の活
性炭吸着塔の運転により吸着処理を継続でき、しかも、
活性炭交換後の活性炭吸着塔を流通順位最終番目として
システムに組み込むようにしたから、活性炭吸着塔１１
〜１４の活性炭交換を一定期間毎に定期的に行え、全て
の活性炭吸着塔１１〜１４の活性炭層を有効利用でき
る。また、活性炭交換時以外は、４塔の活性炭吸着塔１
１〜１４全てが運転されている状態にあるから、各活性
炭吸着塔１１〜１４にかかる負荷が小さく、１塔毎の活
性炭吸着塔１１〜１４の大きさや処理量を小さく構成で
きる。また、バルブの選択によっては、通水順位を任意
に選択することができるから、各活性炭吸着塔１１〜１
４の活性炭層２を有効に使いきることができる。The activated carbon adsorption towers 11 to 14 are also all except for the activated carbon exchange operation.
Since 14 is in operation, these activated carbon adsorption towers 11 to 14 can be operated efficiently. Moreover, since the wastewater is subjected to the adsorption treatment using these activated carbon adsorption towers 11 to 14, the wastewater can be efficiently treated. In addition, even when the activated carbon in the activated carbon adsorption tower at the top of the water passage order is replaced, the adsorption treatment can be continued by operating another activated carbon adsorption tower, and
Since the activated carbon adsorption tower after the activated carbon exchange was incorporated into the system as the last in the distribution order, the activated carbon adsorption tower 11
Activated carbon exchange of the activated carbon adsorption towers 11 to 14 can be carried out periodically, and the activated carbon layers of all the activated carbon adsorption towers 11 to 14 can be effectively used. Except for the activated carbon exchange, four activated carbon adsorption towers 1
Since all of the activated carbon adsorption towers 11 to 14 are in operation, the load on each activated carbon adsorption tower 11 to 14 is small, and the size and the throughput of each activated carbon adsorption tower 11 to 14 can be reduced. In addition, depending on the selection of the valve, the water passage order can be arbitrarily selected.
4 can effectively use the activated carbon layer 2.
【００４０】なお、前記実施形態では、前処理用活性炭
吸着塔１５，１６に収納される濾過材として、活性炭ま
たは活性コークスからなる吸着濾過材を用いたが、本発
明では、他の濾過材、例えば、カートリッジフィルタ、
燒結金属の粒子間に細孔が形成されたフィルタ、高分子
膜に微細な貫通孔が形成された分離膜、あるいは、砂を
敷き詰めて形成されたフィルタ、その他の濾過材を用い
てもよい。ここで、カートリッジフィルタは、繊維、樹
脂含浸濾紙、多孔性陶磁器、多孔性ステンレス、多孔性
プラスチック等の濾過エレメントが容器内に収納されて
なるフィルタである。このフィルタはカートリッジ式で
あるため、前処理用活性炭吸着塔１５，１６に対して取
り付け取り外しが可能であり、濾過材の交換作業が容易
に行える。燒結金属を利用したフィルタは、ステンレス
鋼等の金属において、粒径の均一な微粉末の表面を溶融
して相互に焼結させて焼結粒子間の間隔で細孔を形成さ
せたフィルタである。In the above-described embodiment, as the filtering material contained in the activated carbon adsorption towers 15 and 16 for pretreatment, an adsorption filtering material made of activated carbon or activated coke is used. For example, cartridge filters,
A filter in which pores are formed between sintered metal particles, a separation membrane in which fine through holes are formed in a polymer membrane, a filter in which sand is spread, and other filtering materials may be used. Here, the cartridge filter is a filter in which a filter element such as fiber, resin-impregnated filter paper, porous ceramics, porous stainless steel, porous plastic, or the like is housed in a container. Since this filter is of a cartridge type, it can be attached to and detached from the activated carbon adsorption towers 15 and 16 for pretreatment, and the work of replacing the filter material can be easily performed. A filter using a sintered metal is a filter made of a metal such as stainless steel in which the surfaces of fine powder having a uniform particle size are melted and mutually sintered to form pores at intervals between sintered particles. .
【００４１】分離膜は高分子膜に多数の均一な孔径をも
った微細な貫通孔が形成されるフィルタである。分離膜
は、高分子溶液の相変化を利用する溶媒−ゲル化法、抽
出法、溶融急冷法、２軸延伸法、電子線照射−エッチン
グ法などによって、高分子膜中に多数の均一な孔径をも
った微細な貫通細孔を形成することで製造される。例え
ば、親水性高分子であるＰＶＡ（ポリビニルアルコー
ル）を素材として中空糸膜を形成したもの（商品名、ク
ラレＳＦフィルタ）が分離膜として例示できる。The separation membrane is a filter in which a large number of fine through-holes having a uniform diameter are formed in a polymer membrane. Separation membranes have a large number of uniform pore diameters in the polymer membrane by solvent-gelation, extraction, melt quenching, biaxial stretching, electron beam irradiation-etching, etc., utilizing the phase change of the polymer solution. It is produced by forming fine through pores having For example, a material in which a hollow fiber membrane is formed using PVA (polyvinyl alcohol), which is a hydrophilic polymer, as a material (trade name, Kuraray SF filter) can be exemplified as the separation membrane.
【００４２】以上のフィルタは、それぞれ濾過精度が0.
3〜500μｍ、好ましくは、１〜100μｍである。活性炭
や砂の粒径は、0.01〜10ｍｍ、好ましくは、0.1〜５ｍ
ｍである。砂濾過では、0.5ｍｍの砂・アンスラサイト
が使用される。以上の濾過精度において、上限値より大
きいと、浮遊物質（ＳＳ）の分離除去性能が低下し、小
さすぎると、フィルタの圧損上昇が大きくなる。砂を敷
き詰めて形成されたフィルタは、種々の形態のものが用
いられるが、例えば、塔内部の下部に砂利層を形成し、
その上に砂層を形成する構造のものであってもよい。砂
を敷き詰めて形成されたフィルタや分離膜は、カートリ
ッジタイプとすることもできる。Each of the above filters has a filtration accuracy of 0.
It is 3 to 500 μm, preferably 1 to 100 μm. The particle size of activated carbon or sand is 0.01 to 10 mm, preferably 0.1 to 5 m
m. In sand filtration, 0.5 mm of sand / anthracite is used. In the above filtration accuracy, if the filtration accuracy is larger than the upper limit value, the performance of separating and removing suspended solids (SS) decreases, and if the filtration accuracy is too small, the pressure loss of the filter increases. Filters formed by laying sand are used in various forms, for example, a gravel layer is formed at the bottom inside the tower,
A structure in which a sand layer is formed thereon may be used. The filter or separation membrane formed by laying sand may be of a cartridge type.
【００４３】また、前記実施形態では、活性炭吸着塔１
１〜１４の前段に、２塔の前処理用活性炭吸着塔１５，
１６を並列に配置したが、１塔のみでもよく、３塔以上
を並列配置してもよい。また、これらの後続には、４塔
の活性炭吸着塔１１〜１４を用いて排水を処理するよう
にしたが、これについても数は任意である。つまり、１
塔のみでもよく、あるいは、２塔以上でもよい。In the above embodiment, the activated carbon adsorption tower 1
In the previous stage of 1 to 14, two activated carbon adsorption towers 15 for pretreatment,
Although 16 were arranged in parallel, only one tower may be arranged or three or more towers may be arranged in parallel. In addition, the wastewater is treated using the four activated carbon adsorption towers 11 to 14 after these, but the number is also arbitrary. That is, 1
A tower alone may be used, or two or more towers may be used.
【００４４】本発明では、前処理用活性炭吸着塔１５，
１６の排水導入口側面積と活性炭吸着塔１１〜１４に収
納された活性炭層２の面積とは必ずしも同じでなくても
よい。たとえば、前処理用活性炭吸着塔１５，１６に収
納される活性炭層２は、排水導入口側面積が活性炭吸着
塔１１〜１４に収納された活性炭層２の面積より小さい
構成としてもよい。この場合、前処理用活性炭吸着塔１
５，１６の圧損上昇が速くなり、その中の活性炭層２の
交換頻度が増加するが、面積が小さい分、活性炭層２の
取り替えに際しての作業性がよいという利点がある。In the present invention, the activated carbon adsorption tower 15 for pretreatment,
The area of the wastewater inlet side 16 and the area of the activated carbon layer 2 stored in the activated carbon adsorption towers 11 to 14 are not necessarily the same. For example, the activated carbon layer 2 stored in the activated carbon adsorption towers 15 and 16 for pretreatment may have a configuration in which the area of the drainage inlet side is smaller than the area of the activated carbon layer 2 stored in the activated carbon adsorption towers 11 to 14. In this case, the activated carbon adsorption tower 1 for pretreatment
5 and 16, the pressure loss rises faster, and the frequency of replacement of the activated carbon layer 2 therein is increased. However, since the area is small, there is an advantage that workability in replacing the activated carbon layer 2 is good.
【００４５】逆に、前処理用活性炭吸着塔１５，１６に
収納される活性炭層２は排水導入口側面積が活性炭吸着
塔１１〜１４に収納された活性炭層２の面積より大きく
してもよく、この場合には、圧損上昇によって活性炭層
２の交換が必要となるまでの時間を、排水を直接、活性
炭吸着塔１５，１６に導入して運転した場合よりも長く
できるが、面積が大きい分、取り替え作業性は良くな
い。従って、前処理用活性炭吸着塔１５，１６の排水導
入口側面積は、使用者のニーズに合わせて変更すればよ
い。Conversely, the activated carbon layer 2 stored in the activated carbon adsorption towers 15 and 16 for pretreatment may have an area on the drain inlet side larger than the area of the activated carbon layer 2 stored in the activated carbon adsorption towers 11 to 14. In this case, the time until the activated carbon layer 2 needs to be replaced due to an increase in pressure loss can be made longer than in the case where the wastewater is directly introduced into the activated carbon adsorption towers 15 and 16 for operation. The replacement workability is not good. Accordingly, the area of the pretreatment activated carbon adsorption towers 15 and 16 on the side of the drainage inlet may be changed according to the needs of the user.
【００４６】[0046]
【発明の効果】本発明の吸着処理システムによれば、吸
着濾過材の交換量および処理量を低減できるという効果
がある。According to the adsorption treatment system of the present invention, there is an effect that the exchange amount and the treatment amount of the adsorption filter material can be reduced.
【図１】本発明に係る吸着処理システムの一実施形態を
示す図である。FIG. 1 is a diagram showing one embodiment of an adsorption processing system according to the present invention.
【図２】同上実施形態の活性炭吸着塔の構造を示す図で
ある。FIG. 2 is a diagram showing a structure of an activated carbon adsorption tower according to the same embodiment.
【図３】同上実施形態の運転状態の推移（主に、前処理
用活性炭吸着塔について）を示す図である。FIG. 3 is a diagram showing a transition of an operation state (mainly, regarding a pretreatment activated carbon adsorption tower) of the embodiment.
【図４】同上実施形態の運転状態の推移（主に、活性炭
吸着塔について）を示す図である。FIG. 4 is a diagram showing a transition of an operation state (mainly, regarding an activated carbon adsorption tower) of the embodiment.
１ 塔本体 ２ 活性炭層（吸着濾過材） ３ 流入配管 ４ 流出配管 １１，１２，１３，１４ 活性炭吸着塔 １５，１６ 前処理用活性炭吸着塔（前処理用濾過処理
装置） ２０ 連結配管 ３０ 共通流入配管 ４０ 共通流出配管 ５０ 排水選択供給手段 ６０ 放出選択手段DESCRIPTION OF SYMBOLS 1 Tower main body 2 Activated carbon layer (adsorption filter material) 3 Inflow pipe 4 Outflow pipe 11, 12, 13, 14 Activated carbon adsorption tower 15, 16 Activated carbon adsorption tower for pretreatment (filtration apparatus for pretreatment) 20 Connecting pipe 30 Common inflow Piping 40 Common outflow piping 50 Drainage selection and supply means 60 Release selection means
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０１Ｄ 39/14 Ｂ０１Ｄ 39/20 Ａ ４Ｇ０６６ 39/16 Ｃ 39/20 61/18 Ｂ０１Ｊ 20/20 Ｂ 61/18 Ｃ０２Ｆ 1/44 Ｋ Ｂ０１Ｊ 20/20 Ｂ０１Ｄ 23/02 Ｚ Ｃ０２Ｆ 1/44 23/16 23/14 (72)発明者 大越 信吾 千葉県袖ケ浦市上泉1280番地 Ｆターム(参考） 4D006 GA02 HA01 JA55A KB12 KB16 MA01 MA22 MC33 PA01 PB08 4D019 AA03 BA02 BA03 BA07 BA13 BB06 BB08 BB12 BC05 CB02 4D024 AA04 AB04 AB11 BA02 BA03 BB01 BB05 BC01 CA02 CA04 CA05 DA01 DA02 DB03 DB05 4D041 AA03 AB02 AB22 AD16 BA02 BB03 BB04 BB08 BB09 BB12 BB14 BB27 BB29 BD06 BD16 CA03 CA07 CB04 4D066 BB01 CA02 CA05 CA11 CB12 4G066 AA04B AC08A BA23 BA25 CA33 CA51 DA08 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B01D 39/14 B01D 39/20 A 4G066 39/16 C 39/20 61/18 B01J 20/20 B 61 / 18 C02F 1/44 K B01J 20/20 B01D 23/02 Z C02F 1/44 23/16 23/14 (72) Inventor Shingo Ogoshi 1280 Kamiizumi Kamiizumi, Sodegaura-shi, Chiba F-term (reference) 4D006 GA02 HA01 JA55A KB12 KB16 MA01 MA22 MC33 PA01 PB08 4D019 AA03 BA02 BA03 BA07 BA13 BB06 BB08 BB12 BC05 CB02 4D024 AA04 AB04 AB11 BA02 BA03 BB01 BB05 BC01 CA02 CA04 CA05 DA01 DA02 DB03 DB05 4D041 AA03 AB02 AB22 BB03 BB03 BB03 BB03 BB03 BB03 BB03 BB03 BB03 CA07 CB04 4D066 BB01 CA02 CA05 CA11 CB12 4G066 AA04B AC08A BA23 BA25 CA33 CA51 DA08
Claims (11)
着塔を用いて処理する吸着処理システムにおいて、 前記吸着塔の前段に、その吸着塔内に収納された吸着濾
過材よりも少ない量であって排水を濾過する濾過材を収
納した前処理用濾過処理装置が設けられていることを特
徴とする吸着処理システム。1. An adsorption treatment system for treating wastewater by using an adsorption tower containing an adsorption filter medium therein, wherein the amount of the wastewater is smaller than that of the adsorption filter medium stored in the adsorption tower before the adsorption tower. An adsorption treatment system, characterized in that a filtration treatment device for pretreatment containing a filtering material for filtering wastewater is provided.
いて、 前記濾過材は、活性炭または活性コークスからなる吸着
濾過材であることを特徴とする吸着処理システム。2. The adsorption treatment system according to claim 1, wherein the filter is an adsorption filter made of activated carbon or activated coke.
いて、 前記濾過材はカートリッジフィルタであることを特徴と
する吸着処理システム。3. The adsorption processing system according to claim 1, wherein the filter material is a cartridge filter.
いて、 前記濾過材は燒結金属の粒子間に細孔が形成されたフィ
ルタであることを特徴とする吸着処理システム。4. The adsorption processing system according to claim 1, wherein the filter medium is a filter having pores formed between sintered metal particles.
いて、 前記濾過材は、高分子膜に微細な貫通孔が形成された分
離膜であることを特徴とする吸着処理システム。5. The adsorption processing system according to claim 1, wherein the filtering material is a separation membrane in which a fine through-hole is formed in a polymer membrane.
いて、 前記濾過材は、砂を敷き詰めて形成されたフィルタであ
ることを特徴とする吸着処理システム。6. The adsorption processing system according to claim 1, wherein the filter medium is a filter formed by spreading sand.
吸着処理システムにおいて、 前記前処理用濾過処理装置に収納される濾過材の層は、
排水導入口側面積が前記吸着塔内に収納された吸着濾過
材層と略同じで、かつ、高さ寸法が前記吸着塔内に収納
された吸着濾過材層よりも小さいことを特徴とする吸着
処理システム。7. The adsorption treatment system according to any one of claims 1 to 6, wherein the filter material layer accommodated in the pretreatment filtration treatment device is:
Adsorption characterized in that the drainage inlet side area is substantially the same as the adsorption filter medium layer stored in the adsorption tower, and the height dimension is smaller than the adsorption filter medium layer stored in the adsorption tower. Processing system.
吸着処理システムにおいて、 前記前処理用濾過処理装置に収納される濾過材の層は、
排水導入口側面積が前記吸着塔内に収納された吸着濾過
材層の面積より小さいことを特徴とする吸着処理システ
ム。8. The adsorption treatment system according to any one of claims 1 to 6, wherein the layer of the filter medium stored in the pretreatment filtration treatment device is:
An adsorption treatment system, wherein a drainage inlet side area is smaller than an area of an adsorption filter medium layer stored in the adsorption tower.
吸着処理システムにおいて、 前記前処理用濾過処理装置は、前記吸着塔の前段に、２
つ以上並列に設けられていることを特徴とする吸着処理
システム。9. The adsorption treatment system according to any one of claims 1 to 8, wherein the pretreatment filtration treatment device is provided at a stage upstream of the adsorption tower.
An adsorption treatment system, wherein two or more adsorption treatment systems are provided in parallel.
の吸着処理システムにおいて、 前記前処理用濾過処理装置内に収納された濾過材は、一
括して装置本体から取り外し可能かつ取り付け可能に形
成されていることを特徴とする吸着処理システム。10. The adsorption treatment system according to claim 1, wherein the filter medium contained in the pretreatment filtration treatment device is collectively detachable and attachable from the device main body. An adsorption treatment system characterized by being formed in.
載の吸着処理システムにおいて、 前記前処理用濾過処理装置内に収納された濾過材は、予
め浮遊物質、粉末活性炭、あるいは、珪藻土がプレコー
トされていることを特徴とする吸着処理システム。11. The adsorption treatment system according to any one of claims 1 to 10, wherein the filtration material contained in the pretreatment filtration treatment device contains a suspended substance, powdered activated carbon, or diatomaceous earth in advance. An adsorption treatment system characterized by being pre-coated.
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| JP2001055764 | 2001-02-28 | ||
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100926092B1 (en) * | 2008-05-07 | 2009-11-11 | 주식회사 케이아이오에스 | Foot bathtub |
| JP2010142729A (en) * | 2008-12-18 | 2010-07-01 | Toyobo Co Ltd | Wastewater treatment system |
| JP2010527287A (en) * | 2007-05-16 | 2010-08-12 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | Wastewater mercury removal method |
| CN104418438A (en) * | 2013-08-23 | 2015-03-18 | 东丽先端材料研究开发（中国）有限公司 | Water purifier |
| JP2017077522A (en) * | 2015-10-20 | 2017-04-27 | 東洋紡株式会社 | Water treatment system |
| JP2020073259A (en) * | 2014-10-09 | 2020-05-14 | セーフ・フーズ・コーポレーション | Antibacterial application system with recycling and capture |
| JP7482267B2 (en) | 2015-03-17 | 2024-05-13 | ドナルドソン カンパニー，インコーポレイティド | Hydrocarbon Refining System in Water |
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2001
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010527287A (en) * | 2007-05-16 | 2010-08-12 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | Wastewater mercury removal method |
| KR100926092B1 (en) * | 2008-05-07 | 2009-11-11 | 주식회사 케이아이오에스 | Foot bathtub |
| JP2010142729A (en) * | 2008-12-18 | 2010-07-01 | Toyobo Co Ltd | Wastewater treatment system |
| CN104418438A (en) * | 2013-08-23 | 2015-03-18 | 东丽先端材料研究开发（中国）有限公司 | Water purifier |
| JP2020073259A (en) * | 2014-10-09 | 2020-05-14 | セーフ・フーズ・コーポレーション | Antibacterial application system with recycling and capture |
| JP7482267B2 (en) | 2015-03-17 | 2024-05-13 | ドナルドソン カンパニー，インコーポレイティド | Hydrocarbon Refining System in Water |
| JP2017077522A (en) * | 2015-10-20 | 2017-04-27 | 東洋紡株式会社 | Water treatment system |
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