JP2019136690A - 好気性生物処理装置 - Google Patents
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- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
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- B01F21/30—Workflow diagrams or layout of plants, e.g. flow charts; Details of workflow diagrams or layout of plants, e.g. controlling means
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- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
- B01F23/23105—Arrangement or manipulation of the gas bubbling devices
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- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- C—CHEMISTRY; METALLURGY
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- Y02W10/00—Technologies for wastewater treatment
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Abstract
Description
生物担体としては、活性炭が好適である。
酸素含有ガスは空気、酸素富化空気、純酸素等、酸素を含む気体であればよい。通気する気体はフィルターを通過させて微細粒子を予め除去することが望ましい。
被処理水の反応槽内の流速はLV10m/hr以上とし、処理水を循環せず、ワンパスで処理することができる。
槽負荷1〜2kg−TOC/m3/dayとなるように滞留時間を設定するのが好ましい。
ブロアは、吐出風圧が水深からくる水圧以下のもので十分である。但し、配管等の圧損以上であることは必要である。通常、配管抵抗は1〜2kPa程度である。
内径300μm、外径500μmの非多孔質のシリコン製中空糸膜30本の上下をそれぞれ束ね、直径25mm、長さ1mのカラム(透明塩ビ管)内に設置して上部から下部へ向けて空気を10mL/min通気した。シリコン製中空糸の束ねた下部はカラムの外側下部に突出している。
実施例1と同一の試験装置を用いて、空気の通気方向を下部から上部としたこと以外は同一条件で運転した。
実施例1において、カラム底部の空気出口配管に細いチューブの一端をつなぐと共に、チューブの他端を反応槽上部に配置したこと以外は実施例1と同一の試験装置を用いて、同一条件で運転した。その結果、酸素溶解速度は3〜4g−O/m2/dayの範囲であった。
比較例2において、前記チューブの前記他端にT字管をとりつけ、空気出口配管直下部にピンチコックをつけて2週に1度ピンチコックを開け、凝縮水を排出した。その結果、酸素溶解速度は9g−O/m2/dayに回復した。
2 反応槽
6 酸素溶解膜モジュール
20,21 ヘッダー
22 中空糸膜
27 給気配管
29 排出配管(排水配管)
30 排ガス配管
32 タンク
Claims (9)
- 反応槽と、
該反応槽内に通気方向が上下方向となるように設置された酸素溶解膜モジュールと、
該酸素溶解膜モジュールに酸素含有ガスを供給する酸素含有ガス供給手段と、
酸素溶解膜モジュールから排ガスを槽外に排出する排ガス配管と、
酸素溶解膜モジュールから凝縮水を反応槽外へ排出する排水配管と
を備えてなる好気性生物処理装置。 - 凝縮水を酸素溶解膜モジュールの下端より低い(複数モジュールを使用の場合は各モジュールの下端の中でも最も下位のものより低い)位置へ排出し、酸素溶解膜モジュールから排出された凝縮水を槽外に排出するよう設けられている請求項1の好気性生物処理装置。
- 前記排水配管は鉛直下向き又は下り勾配を有するように設けられている請求項1又は2の好気性生物処理装置。
- 前記排水配管から流出する凝縮水を受け入れるタンクと、該タンク内の水を前記反応槽へ送水するポンプとを備えたことを特徴とする請求項1ないし3のいずれかの好気性生物処理装置。
- 前記排水配管にバルブが設けられていることを特徴とする請求項1ないし4のいずれかの好気性生物処理装置。
- 排水配管の内径は50mm以下であり、その末端は酸素溶解膜より高い位置に配置されている請求項1の好気性生物処理装置。
- 酸素溶解膜モジュールは非多孔質の酸素溶解膜を備えている請求項1ないし6のいずれかの好気性生物処理装置。
- 酸素溶解膜が疎水性である請求項7に記載の好気性生物処理装置。
- 反応槽内に流動床担体が充填されている請求項1ないし8のいずれかの好気性生物処理装置。
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JP2018025233A JP6702344B2 (ja) | 2018-02-15 | 2018-02-15 | 好気性生物処理装置 |
PCT/JP2019/002695 WO2019159667A1 (ja) | 2018-02-15 | 2019-01-28 | 好気性生物処理装置 |
US16/963,340 US11459252B2 (en) | 2018-02-15 | 2019-01-28 | Aerobic biological treatment apparatus |
KR1020207010327A KR20200119229A (ko) | 2018-02-15 | 2019-01-28 | 호기성 생물 처리 장치 |
CN201980005568.3A CN111315691A (zh) | 2018-02-15 | 2019-01-28 | 好氧生物处理装置 |
TW108103927A TW201934499A (zh) | 2018-02-15 | 2019-01-31 | 好氧生物處理裝置 |
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JP (1) | JP6702344B2 (ja) |
KR (1) | KR20200119229A (ja) |
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JP2021062331A (ja) * | 2019-10-11 | 2021-04-22 | 三菱ケミカル株式会社 | 中空糸膜、中空糸膜モジュール、廃水処理装置及び廃水処理方法 |
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JP2021133342A (ja) * | 2020-02-28 | 2021-09-13 | 三菱ケミカル株式会社 | 中空糸膜エレメント、中空糸膜モジュール、廃水処理装置及び廃水処理方法 |
US20230087869A1 (en) * | 2021-09-23 | 2023-03-23 | Pentair Water Pool And Spa, Inc. | Hybrid filter assembly and method |
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JPH06507335A (ja) * | 1989-10-02 | 1994-08-25 | メンブラン・コーポレーション | 無気泡型の気体搬送装置及び方法 |
JPH0568996A (ja) * | 1991-05-17 | 1993-03-23 | Nippon Plant:Kk | 溶存気体の発生方法及びその溶存気体を用いた汚水処理装置 |
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JP2021062331A (ja) * | 2019-10-11 | 2021-04-22 | 三菱ケミカル株式会社 | 中空糸膜、中空糸膜モジュール、廃水処理装置及び廃水処理方法 |
JP7359382B2 (ja) | 2019-10-11 | 2023-10-11 | 三菱ケミカル株式会社 | 中空糸膜、中空糸膜モジュール、廃水処理装置及び廃水処理方法 |
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TW201934499A (zh) | 2019-09-01 |
WO2019159667A1 (ja) | 2019-08-22 |
US11459252B2 (en) | 2022-10-04 |
CN111315691A (zh) | 2020-06-19 |
KR20200119229A (ko) | 2020-10-19 |
US20210061688A1 (en) | 2021-03-04 |
JP6702344B2 (ja) | 2020-06-03 |
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