JP2005118626A - 酸化剤の処理方法および処理装置 - Google Patents
酸化剤の処理方法および処理装置 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 claims abstract description 82
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 59
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- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims abstract description 15
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
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- 229910052708 sodium Inorganic materials 0.000 description 2
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- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
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- 229910000510 noble metal Inorganic materials 0.000 description 1
- UPWOEMHINGJHOB-UHFFFAOYSA-N oxo(oxocobaltiooxy)cobalt Chemical compound O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 description 1
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
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Landscapes
- Processing Of Solid Wastes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
【解決手段】 水と触媒との接触時に水中に還元剤を共存させる。例えば、酸化剤として過硫酸塩を含有する水に、酸化剤含有水導入ライン10において、還元剤添加ライン14からチオ硫酸塩、過酸化水素などの還元剤を添加する。その後、この水を触媒反応槽(活性炭充填塔)18に通水する。
【選択図】 図1
Description
酸化剤含有原水として、過硫酸ナトリウムを500mg/Lになるように純水に溶解したものをバイアル瓶にて用意した。そして、還元剤を酸化剤濃度に対して完全に反応した場合のほぼ当量となるように、過酸化水素100mg/Lまたはチオ硫酸ナトリウム80mg/Lを上記原水に添加した系(還元剤当量添加・活性炭非通水系)を作成した。また、当量の4倍程度として過酸化水素400mg/Lまたはチオ硫酸ナトリウム320mg/Lとなるように上記原水に添加した系(還元剤4倍当量添加・活性炭非通水系)を作成し、それぞれの系において水中の過硫酸ナトリウム濃度が100mg/L以下となるまでの還元剤との接触時間を測定した。
アクリル樹脂製カラム(内径30mm、高さ300mm)に触媒として石炭系活性炭(ダイヤホープ;三菱化学製)を充填高さ100mmとなるように充填した。そして、このカラムに酸化剤を含んだ水を通水し、活性炭での単独処理を行った場合と還元剤を共存させた場合の酸化剤処理能力を調べた。酸化剤含有原水としては、純水に過硫酸ナトリウムを500mg/Lになるように溶解したものを用意した。この原水を上記カラムに空塔速度10/hrで通水し、線流速を確保するため、処理水の一部をカラム入り口に戻して線流速17m/hrで循環運転を行った。ここで原水流入ラインにおいて、処理対象原水中へ還元剤として過酸化水素を100mg/Lまたはチオ硫酸ナトリウムを83mg/Lになるように連続添加した。また、処理水のpH低下が想定されたため、カラム出口に設置した処理水タンクにpHコントローラを設置し、pHが中性に保たれるよう処理水タンクにおいて処理水に自動的に水酸化ナトリウムの水溶液を添加するようにした。さらに、過酸化水素添加系では大量の気体発生により活性炭の流出が起こるため、活性炭の上部にネットを設置した。
12 還元剤タンク
14 還元剤添加ライン
16 還元剤添加ポンプ
18 触媒反応槽
20 処理水ライン
22 pH調整兼循環水貯留用処理水タンク
24 攪拌機
26 アルカリ剤タンク
28 アルカリ剤添加ライン
30 アルカリ剤添加ポンプ
32 pHコントローラ
34 pHセンサ
36 処理水排出ライン
38 処理水循環ライン
40 循環ポンプ
Claims (10)
- 水に溶解した酸化剤を触媒により還元処理する方法において、前記水と触媒との接触時に水中に還元剤を共存させることを特徴とする酸化剤の処理方法。
- 触媒が活性炭であることを特徴とする請求項1に記載の酸化剤の処理方法。
- 酸化剤が過硫酸塩であることを特徴とする請求項1または2に記載の酸化剤の処理方法。
- 還元剤がチオ硫酸塩であることを特徴とする請求項1〜3のいずれか1項に記載の酸化剤の処理方法。
- 還元剤が過酸化水素であることを特徴とする請求項1〜3のいずれか1項に記載の酸化剤の処理方法。
- 酸化剤が、土壌中に酸化剤を添加して地表面以下に存在する汚染有機物質の酸化処理を行う目的で使用されたものであることを特徴とする請求項1〜5のいずれか1項に記載の酸化剤の処理方法。
- 酸化剤が、地下水を揚水した水中に含まれているものであることを特徴とする請求項1〜6のいずれか1項に記載の酸化剤の処理方法。
- 酸化剤含有水と触媒とを接触させて該酸化剤含有水に溶解した酸化剤を還元処理する触媒反応槽と、前記触媒反応槽またはその手前で酸化剤含有水に還元剤を添加することにより、触媒反応槽での酸化剤含有水と触媒との接触時に酸化剤含有水中に還元剤を共存させる還元剤添加手段とを具備することを特徴とする酸化剤の処理装置。
- 前記触媒反応槽は活性炭充填塔であることを特徴とする請求項8に記載の酸化剤の処理装置。
- 前記触媒反応槽は連続して酸化剤含有水を通水するものであり、該触媒反応槽の処理水の一部と触媒反応槽に通水する酸化剤含有水とを触媒反応槽の手前で混合し、この混合水を触媒反応槽に通水することを特徴とする請求項8または9に記載の酸化剤の処理装置。
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JP4455860B2 JP4455860B2 (ja) | 2010-04-21 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008194553A (ja) * | 2007-02-08 | 2008-08-28 | Fuji Mentenir Kk | 床面ワックスの剥離汚水の処理剤及び処理方法 |
JP2008194554A (ja) * | 2007-02-08 | 2008-08-28 | Fuji Mentenir Kk | 床面ワックスの剥離汚水の処理方法 |
JP2010149083A (ja) * | 2008-12-26 | 2010-07-08 | Japan Organo Co Ltd | 化学物質汚染の浄化方法 |
CN102240666A (zh) * | 2011-06-02 | 2011-11-16 | 中国科学院武汉岩土力学研究所 | 一种重金属污染土淋洗修复装置 |
JP2012045482A (ja) * | 2010-08-26 | 2012-03-08 | Takuma Co Ltd | 水処理方法およびそれを用いた水処理システム |
JP2014100665A (ja) * | 2012-11-20 | 2014-06-05 | Japan Organo Co Ltd | 酸化剤処理方法及び酸化剤処理装置 |
CN108640227A (zh) * | 2018-07-09 | 2018-10-12 | 河北工业大学 | 一种过硫酸盐活化高级氧化/浸没式催化陶瓷膜过滤原位耦合装置及其净水方法 |
-
2003
- 2003-10-14 JP JP2003353731A patent/JP4455860B2/ja not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008194553A (ja) * | 2007-02-08 | 2008-08-28 | Fuji Mentenir Kk | 床面ワックスの剥離汚水の処理剤及び処理方法 |
JP2008194554A (ja) * | 2007-02-08 | 2008-08-28 | Fuji Mentenir Kk | 床面ワックスの剥離汚水の処理方法 |
JP2010149083A (ja) * | 2008-12-26 | 2010-07-08 | Japan Organo Co Ltd | 化学物質汚染の浄化方法 |
JP2012045482A (ja) * | 2010-08-26 | 2012-03-08 | Takuma Co Ltd | 水処理方法およびそれを用いた水処理システム |
CN102240666A (zh) * | 2011-06-02 | 2011-11-16 | 中国科学院武汉岩土力学研究所 | 一种重金属污染土淋洗修复装置 |
JP2014100665A (ja) * | 2012-11-20 | 2014-06-05 | Japan Organo Co Ltd | 酸化剤処理方法及び酸化剤処理装置 |
CN108640227A (zh) * | 2018-07-09 | 2018-10-12 | 河北工业大学 | 一种过硫酸盐活化高级氧化/浸没式催化陶瓷膜过滤原位耦合装置及其净水方法 |
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JP4455860B2 (ja) | 2010-04-21 |
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