JP2010017504A - Method for cleaning air with photocatalytic ceramic filter using purified water and air cleaning apparatus - Google Patents
Method for cleaning air with photocatalytic ceramic filter using purified water and air cleaning apparatus Download PDFInfo
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- JP2010017504A JP2010017504A JP2008206344A JP2008206344A JP2010017504A JP 2010017504 A JP2010017504 A JP 2010017504A JP 2008206344 A JP2008206344 A JP 2008206344A JP 2008206344 A JP2008206344 A JP 2008206344A JP 2010017504 A JP2010017504 A JP 2010017504A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000000919 ceramic Substances 0.000 title claims abstract description 45
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 25
- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 239000008213 purified water Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005406 washing Methods 0.000 claims description 29
- 239000011941 photocatalyst Substances 0.000 claims description 27
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000002574 poison Substances 0.000 claims description 7
- 231100000614 poison Toxicity 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 6
- 238000011045 prefiltration Methods 0.000 claims description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003456 ion exchange resin Substances 0.000 claims description 5
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 5
- 238000013032 photocatalytic reaction Methods 0.000 claims description 5
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
本発明は、光触媒セラミックスフィルターにアンモニア等が吸着すると光触媒反応により硝酸（ＮＯｘ）となる。又メルカプタン等硫黄酸化物は同じく光触媒反応で硫黄酸化物（ＳＯｘ）となる。これらは触媒毒と呼ばれ、いずれも臭気成分の分解処理能力を低下させる。更に、光触媒セラミックスフィルターに未分解有機物の付着、臭い成分である有機物の付着により臭気成分の分解能力が低下する。そこで、光触媒フィルターを精製水で洗浄することにより触媒毒を除去して、光触媒フィルターの臭気分解能を保持して臭気成分の分解処理を行う臭気処理方法および装置に関する。The present invention will become nitrate (NO x) by the photocatalytic reaction when ammonia is adsorbed on the photocatalytic ceramics filter. Similarly, sulfur oxides such as mercaptans are converted to sulfur oxides (SOx) by photocatalytic reaction. These are called catalyst poisons, and all reduce the ability to decompose odor components. Furthermore, the ability of decomposing odor components decreases due to adhesion of undecomposed organic substances and organic substances as odor components to the photocatalytic ceramic filter. Therefore, the present invention relates to an odor treatment method and apparatus for removing the catalyst poison by washing the photocatalyst filter with purified water, and maintaining the odor resolution of the photocatalyst filter and decomposing odor components.
酸化チタンを代表とする酸化物半導体光触媒は、殺菌用２５３．７ｎｍとＴＯＣ−ＵＶ用１８４．９ｎｍとの紫外線を照射すると光誘起電荷分離が起こり、その表面に強力な酸化力、還元力が生じ、光触媒表面に吸着した細菌を死滅させたり有機物等を炭酸ガス（ＣＯ２）や水（Ｈ２Ｏ）に分解処理することはよく知られている。
しかし、これら光触媒セラミックスフィルターは、分解対象物である臭い成分、未分解の臭い成分、更に触媒毒成分の付着により臭気成分の分解能が低下した場合、一般的には組み込まれた装置から光触媒セラミックスフィルターを取り外して、水洗浄を行い乾燥後再度組み付ける等の処理を行い、光触媒セラミックスフィルターの臭気成分分解能を保持させている。An oxide semiconductor photocatalyst represented by titanium oxide undergoes photo-induced charge separation when irradiated with ultraviolet rays of 253.7 nm for sterilization and 184.9 nm for TOC-UV, resulting in strong oxidizing power and reducing power on the surface. It is well known to kill bacteria adsorbed on the surface of the photocatalyst or decompose organic substances into carbon dioxide (CO 2 ) or water (H 2 O).
However, these photocatalyst ceramic filters are generally used when the resolution of odor components decreases due to the attachment of odor components, undecomposed odor components, and further catalyst poison components, which are the objects to be decomposed. The odor component resolution of the photocatalyst ceramic filter is maintained by performing a process such as removing water, washing with water, reattaching after drying.
光触媒セラミックスフィルターを用いた空気清浄機において、光触媒セラミックスフィルターの付着した汚れ成分を除去するため、空気清浄機に組み込まれた光触媒セラミックスフィルターを取り外して水洗浄を行い乾燥させて再度組み付けるのは大変な労力と手間と時間を要する。そこで、簡単に水洗浄を行えるようにする必要がある。 In an air cleaner using a photocatalyst ceramic filter, it is difficult to remove the photocatalyst ceramic filter incorporated in the air cleaner, wash it with water, dry it, and reassemble it in order to remove dirt components attached to the photocatalyst ceramic filter. It takes effort, time and effort. Therefore, it is necessary to be able to easily perform water cleaning.
本出願人は長年光触媒用酸化チタンを用いた脱臭方法、脱臭装置の研究を行ってきて、前記課題に記載されている光触媒セラミックスフィルターが空気清浄機に組み込まれたまま該フィルターの水洗浄の検討を行った。
図２に外装をはずして、光触媒用酸化チタンフィルター（１）と紫外線ランプ（２）を組み付けた側からの写真を示した。光触媒用酸化チタンフィルター（１）は１枚が縦１５０ｍｍ×横１５０ｍｍ×厚み１５ｍｍの寸法のものが４枚組み込まれている。そこで、１枚の重量が１００ｇから２００ｇまで１０ｇ毎のフィルターを作成した。１枚のフィルターを垂直に立て、上部に径が１２ｍｍφ×長さ１５０ｍｍの塩ビ管に１ｍｍφの孔を２０ｍｍ間隔に空けたものを置き、ＫＯＳＨＩＮ ＬＴＤ社製バスポンプ（ＢＰ−１０１Ｋ）で、水量：１，７００ｍｌ／ｍｉｎ分で通水して、フィルター内のみ水が流れるか確認実験をおこなった。１枚が１２０ｇから１６０ｇの５枚が特に綺麗に下部からの水の排出も均一に流れることを確認した。
次に、現在、水洗浄に関しては、病院及び動物舎で使用された使用済み光触媒セラミックフィルターを回収して水洗浄を行ってる。The applicant has been researching deodorization methods and deodorization apparatuses using titanium oxide for photocatalysts for many years, and studying water washing of the filter while the photocatalyst ceramic filter described in the above problem is incorporated in an air cleaner. Went.
FIG. 2 shows a photograph from the side where the exterior is removed and the titanium oxide filter for photocatalyst (1) and the ultraviolet lamp (2) are assembled. Four titanium oxide filters (1) for photocatalysts are incorporated with dimensions of 150 mm in length, 150 mm in width, and 15 mm in thickness. Therefore, a filter for every 10 g with a weight of 100 g to 200 g was prepared. One filter is set up vertically, and a pipe with a diameter of 12 mmφ x 150 mm in length is placed on a PVC pipe with 1 mmφ holes spaced at intervals of 20 mm, and the water volume is measured with a bus pump (BP-101K) manufactured by KOSHIN LTD. An experiment for confirming whether water flows only in the filter was conducted at 1,700 ml / min. It was confirmed that 5 sheets of 120g to 160g of one sheet were particularly beautiful and the discharge of water from the lower part flowed uniformly.
Next, regarding water cleaning, used photocatalyst ceramic filters used in hospitals and animal houses are collected and washed with water.
これに対して、光触媒セラミックフィルターを用いた空気清浄方法において、光触媒セラミックスフィルターに付着した臭気成分、未分解の有機成分、光触媒反応により発生する硝酸、硫黄酸化物の触媒毒成分を空気清浄機内に設置した状態のまま、精製水を用いて水洗浄を行うことを特徴とする空気清浄方法で水洗浄を行う。 In contrast, in an air cleaning method using a photocatalytic ceramic filter, odor components, undecomposed organic components attached to the photocatalytic ceramic filter, nitric acid generated by the photocatalytic reaction, and sulfur oxide catalyst poison components are contained in the air cleaner. Water cleaning is performed by an air cleaning method characterized by performing water cleaning using purified water in the installed state.
前記、水洗浄は、水を循環して処理を行い、光触媒セラミックスフィルターの上部より加圧水流によりフィルター内を流水して行い、フィルターの汚れ成分を含む洗浄水はフィルター下部の洗浄水受け皿に貯められポンプにより、プレフィルターでごみ類を処理した後、有機物分解用紫外線ランプで有機物成分を分解後、混床式イオン交換樹脂ボンベで、イオン成分を除去して精製水とした後、再度光触媒セラミックスフィルター上部より加圧水流として用いることを特徴とする洗浄水を循環して行う空気清浄方法で行う。 The water washing is performed by circulating water, and the inside of the filter is made to flow from the upper part of the photocatalyst ceramic filter by a pressurized water flow, and the washing water containing dirt components of the filter is stored in a washing water tray at the lower part of the filter. After treating the waste with a pre-filter with a pump, after decomposing the organic components with an ultraviolet lamp for decomposing organic matter, removing the ionic components with a mixed bed ion exchange resin cylinder to make purified water, and then again the photocatalytic ceramic filter It is carried out by an air cleaning method that circulates washing water, which is used as a pressurized water flow from the top.
前記、水洗浄は、水を循環して処理して行い、光触媒セラミックスフィルターの上部より加圧水流によりフィルター内を流水して行い、フィルターの汚れ成分を含む洗浄水はフィルター下部の洗浄水受け皿に貯められポンプにより、プレフィルターでごみ類を処理した後、有機物分解用紫外線ランプで有機物成分を分解後、混床式イオン交換樹脂ボンベで、イオン成分を除去して精製水とした後、再度光触媒セラミックスフィルター上部より加圧水流として用いることを特徴とする空気清浄装置を用いて行う。 The water washing is performed by circulating water, and the inside of the filter is flushed with a pressurized water flow from the upper part of the photocatalytic ceramic filter, and the washing water containing dirt components of the filter is stored in a washing water tray at the lower part of the filter. After treating the waste with a pre-filter using a pump, after decomposing organic components with an ultraviolet lamp for decomposing organic matter, using a mixed bed ion exchange resin cylinder to remove the ionic components to make purified water, again photocatalytic ceramics It is carried out using an air purifier characterized by being used as a pressurized water flow from the top of the filter.
本発明によれば、光触媒セラミックスフィルターに付着する臭気成分、未分解成分、触媒毒成分を装置内に設置したまま水洗浄除去を行うため、常に光触媒セラミックスフィルターの分解能をほじさせたまま稼動させるため清浄な環境保持とランニングコストの低減に貢献する。 According to the present invention, since the odor component, undecomposed component, and catalyst poison component adhering to the photocatalyst ceramic filter are removed by washing with water installed in the apparatus, the photocatalyst ceramic filter is always operated with the resolution of the filter removed. Contributes to maintaining a clean environment and reducing running costs.
図１に精製水による光触媒セラミックスフィルター洗浄付空気清浄方法の模式図を示したので、この図１に従って説明する。
はじめに、送風機は図２の光触媒セラミックフィルター１の裏側の中心部にあるため番号取りが出来ていない、空気清浄機本体は４枚の光触媒セラミックスフィルター１を１組として、この光触媒セラミックフィルター１の表面から１５ｍｍ離した位置に４本の紫外線ランプ２を組み込んだものを１組のユニットとした。本ユニットを２組組み込んである。これを本体と呼ぶ。
この本体上部の光触媒セラミックフィルターの上部１ｍｍ程度の位置に光触媒セラミックスフィルター１に水洗浄用の精製水を供給するための水噴射フラットノズルヘッダー７をそれぞれのユニットの光触媒セラミックスフィルター１に設置する。光触媒セラミックスフィルターを水洗浄しながら落下した洗浄水は洗浄水受皿９に貯められる。レベルセンサーで稼動するポンプＰ１で洗浄水を水槽３に移送する。これら洗浄水は流量を制御したポンプＰ２で、プレフィルター４でごみなど沈殿物を処理した後、有機物分解用紫外線ランプ（ＴＯＣ−ＵＶ）５で洗浄水中に含まれるＴＯＣ成分（全有機炭素成分）を分解処理した後、陽イオン樹脂４／陰イオン樹脂６の割合のイオン交換ボンベでイオン成分を処理した後精製水として水洗浄用として水噴射フラットノズルヘッダー７へ供給する。この水洗浄は、１日２回使用開始前と使用後１０時間程度の２回約３０分後水洗浄を行う。光触媒セラミックスフィルターの水切れが良いので、洗浄後５から１０分後位から稼動しても問題は無い。FIG. 1 shows a schematic diagram of an air cleaning method with a photocatalyst ceramic filter cleaning using purified water, which will be described with reference to FIG.
First, since the blower is located at the center of the back side of the photocatalytic ceramic filter 1 in FIG. 2, the numbering cannot be performed. The unit in which four ultraviolet lamps 2 are incorporated at a position 15 mm away from each other is taken as one unit. Two sets of this unit are incorporated. This is called a main body.
A water jet flat nozzle header 7 for supplying purified water for water washing to the photocatalyst ceramic filter 1 is installed in the photocatalyst ceramic filter 1 of each unit at a position of about 1 mm above the photocatalyst ceramic filter on the main body. The washing water dropped while washing the photocatalytic ceramic filter with water is stored in the washing water receiving tray 9. The washing water is transferred to the water tank 3 by the pump P1 operated by the level sensor. These washing waters are treated with a pump P2 whose flow rate is controlled, and pre-filter 4 is used to treat dust and other precipitates, and then the TOC component (total organic carbon components) contained in the washing water with an ultraviolet lamp (TOC-UV) 5 for organic matter decomposition. Then, the ionic component is treated with an ion exchange cylinder in the ratio of cation resin 4 / anion resin 6 and then supplied as purified water to the water jet flat nozzle header 7 for water washing. This water washing is performed twice a day before the start of use and twice after about 30 hours for about 30 minutes. Since the photocatalyst ceramic filter is well drained, there is no problem even if it is operated from about 5 to 10 minutes after cleaning.
それぞれの仕様機器は表１に示した部品を使用した。
尚、水噴射フラットノズルヘッダーは、１００ｍｍの長さの両端を軟質パイプをつなぐた
ら精製水を１，７００ｍＬ／ｍｉｎの水流で光触媒セラミックフィルター上に流し込んだ。水は、フィルターの外に漏れることなく、洗浄水受皿９に貯留された。
精製水の水量が３，４００ｍＬ／ｍｉｎまで、揚げて流してもフィルターの外に漏れることは無かった。
尚、この方法で洗浄した光触媒セラミックフィルターと同等の精製水に浸漬させて、陽イオン、陰イオンおよびＴＯＣ成分分析したが、同等に洗浄できていることが確認された。
In addition, the water jet flat nozzle header has a soft pipe connected to both ends with a length of 100 mm.
The purified water was poured onto the photocatalytic ceramic filter with a water flow of 1,700 mL / min. Water was stored in the washing water tray 9 without leaking out of the filter.
Even if the amount of purified water was fried to 3,400 mL / min, it did not leak out of the filter.
In addition, it was immersed in the purified water equivalent to the photocatalyst ceramic filter wash | cleaned by this method, and the cation, the anion, and the TOC component analysis were carried out, but it was confirmed that it was wash | cleaned equally.
装置より取り外して、汚れ成分の洗浄をしている製造工程にも広く利用可能と考えられる。 It is considered that it can be widely used in the manufacturing process of removing dirt components from the apparatus.
１．光触媒セラミックスフィルター
２．紫外線ランプ
３．水槽
４．プレフィルター
５．有機物分解用紫外線ランプ（ＴＯＣ−ＵＶ）
６．イオン交換樹脂ボンベ
７．水噴射フラットノズルヘッダー
８．噴霧水滴
９．洗浄水受皿
ｐ１．ポンプ１
ｐ２．ポンプ２1. 1. Photocatalytic ceramic filter 2. UV lamp Aquarium 4. Prefilter 5. UV lamp for organic matter decomposition (TOC-UV)
6). 6. Ion exchange resin cylinder 7. Water jet flat nozzle header Sprayed water droplets9. Washing water tray p1. Pump 1
p2. Pump 2
Claims (4)
光触媒セラミックスフィルターに付着した臭気成分、未分解の有機成分、光触媒反応により発生する硝酸、硫黄酸化物の触媒毒成分を空気清浄機内に設置した状態のまま、精製水を用いて水洗浄を行うことを特徴とする空気清浄方法。In the air cleaning method using a photocatalytic ceramic filter,
Washing with purified water with odor components adhering to the photocatalyst ceramic filter, undecomposed organic components, nitric acid generated by the photocatalytic reaction, and sulfur oxide catalyst poison components installed in the air purifier An air cleaning method characterized by.
光触媒セラミックスフィルターに付着した臭気成分、未分解の有機成分、光触媒反応により発生する硝酸、硫黄酸化物の触媒毒成分を空気清浄装置内に設置した状態のまま、精製水を用いて水洗浄を行うことを特徴とする空気清浄装置。In an air cleaning device using a photocatalytic ceramic filter,
Rinse with purified water with odor components adhering to the photocatalyst ceramic filter, undecomposed organic components, nitric acid generated by the photocatalytic reaction, and sulfur oxide catalyst poison components installed in the air purifier. An air purifier characterized by that.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105157130A (en) * | 2015-10-19 | 2015-12-16 | 董练昌 | Air purifying method |
| CN108592259A (en) * | 2018-05-31 | 2018-09-28 | 四川建源节能科技有限公司 | Energy-saving fresh air machine filter device |
| CN109395525A (en) * | 2018-11-14 | 2019-03-01 | 谢响玲 | A kind of organic exhaust gas photocatalytic decomposition device |
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2008
- 2008-07-14 JP JP2008206344A patent/JP2010017504A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157130A (en) * | 2015-10-19 | 2015-12-16 | 董练昌 | Air purifying method |
| CN108592259A (en) * | 2018-05-31 | 2018-09-28 | 四川建源节能科技有限公司 | Energy-saving fresh air machine filter device |
| CN109395525A (en) * | 2018-11-14 | 2019-03-01 | 谢响玲 | A kind of organic exhaust gas photocatalytic decomposition device |
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