JP4500069B2 - 膜分離活性汚泥法 - Google Patents
膜分離活性汚泥法 Download PDFInfo
- Publication number
- JP4500069B2 JP4500069B2 JP2004062585A JP2004062585A JP4500069B2 JP 4500069 B2 JP4500069 B2 JP 4500069B2 JP 2004062585 A JP2004062585 A JP 2004062585A JP 2004062585 A JP2004062585 A JP 2004062585A JP 4500069 B2 JP4500069 B2 JP 4500069B2
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- JP
- Japan
- Prior art keywords
- mlss concentration
- activated sludge
- membrane
- water
- membrane filtration
- 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.)
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- 238000000034 method Methods 0.000 title claims description 34
- 238000000926 separation method Methods 0.000 title claims description 30
- 239000010802 sludge Substances 0.000 title claims description 22
- 239000012528 membrane Substances 0.000 title claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 238000004062 sedimentation Methods 0.000 claims description 44
- 238000005374 membrane filtration Methods 0.000 claims description 39
- 238000005273 aeration Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000009295 crossflow filtration Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Images
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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Description
先ず図5は既存の水処理施設の代表的なレイアウトを示すもので、最初沈殿池1から分流される複数列の曝気槽などの生物処理工程2の後段に、それぞれ最終沈殿池3が直列に配置されている。請求項1の発明では図1に示すように水処理施設の一部の最終沈殿池3を残し、その他の最終沈殿池3の敷地に膜ろ過装置4を設置する。
2 曝気槽などの生物処理工程
3 最終沈殿池
4 膜ろ過装置
5 共通水路
6 簡易沈殿池
7 簡易遠心分離機
Claims (3)
- 最初沈殿池から分流される複数列の曝気槽の後段に、それぞれ最終沈殿池が直列に配置された、既存の水処理施設において、該最終沈殿池の一つをMLSS濃度低下処理槽として利用し、残りの最終沈殿池スペースを槽外設置型の膜ろ過処理装置設置スペースとして利用してする膜分離活性汚泥法であって、
該複数列の曝気槽からの流出水を共通水路に集めて、該MLSS濃度低下処理槽に導き、
該MLSS濃度低下処理槽では、流出水のMLSS濃度を3000mg/L以下とするMLSS濃度低下処理を行い、
該MLSS濃度低下処理槽からの流出水を該膜ろ過処理装置に導くことを特徴とする膜分離活性汚泥法。 - MLSS濃度低下処理槽内に簡易固液分離装置を備えることを特徴とする請求項1記載の膜分離活性汚泥法。
- 簡易固液分離装置が簡易沈殿池または簡易遠心分離装置であることを特徴とする請求項2記載の膜分離活性汚泥法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004062585A JP4500069B2 (ja) | 2004-03-05 | 2004-03-05 | 膜分離活性汚泥法 |
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JP2004062585A JP4500069B2 (ja) | 2004-03-05 | 2004-03-05 | 膜分離活性汚泥法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005246310A JP2005246310A (ja) | 2005-09-15 |
JP4500069B2 true JP4500069B2 (ja) | 2010-07-14 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2004062585A Expired - Fee Related JP4500069B2 (ja) | 2004-03-05 | 2004-03-05 | 膜分離活性汚泥法 |
Country Status (1)
Country | Link |
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JP (1) | JP4500069B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4996516B2 (ja) * | 2008-03-24 | 2012-08-08 | メタウォーター株式会社 | 再生水製造方法 |
JP7339726B2 (ja) | 2018-03-12 | 2023-09-06 | 住友重機械エンバイロメント株式会社 | 水処理槽の更新方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0576870A (ja) * | 1991-09-19 | 1993-03-30 | Ebara Corp | 懸濁液の分離方法 |
JPH05154354A (ja) * | 1991-12-11 | 1993-06-22 | Ebara Infilco Co Ltd | 膜濾過装置 |
JPH08257585A (ja) * | 1995-03-23 | 1996-10-08 | Ngk Insulators Ltd | 廃水の活性汚泥処理方法および活性汚泥処理装置 |
JP2002028652A (ja) * | 2000-07-18 | 2002-01-29 | Maezawa Ind Inc | 膜分離装置 |
JP2002316183A (ja) * | 2001-04-23 | 2002-10-29 | Nkk Corp | 汚水の処理方法及び装置 |
-
2004
- 2004-03-05 JP JP2004062585A patent/JP4500069B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0576870A (ja) * | 1991-09-19 | 1993-03-30 | Ebara Corp | 懸濁液の分離方法 |
JPH05154354A (ja) * | 1991-12-11 | 1993-06-22 | Ebara Infilco Co Ltd | 膜濾過装置 |
JPH08257585A (ja) * | 1995-03-23 | 1996-10-08 | Ngk Insulators Ltd | 廃水の活性汚泥処理方法および活性汚泥処理装置 |
JP2002028652A (ja) * | 2000-07-18 | 2002-01-29 | Maezawa Ind Inc | 膜分離装置 |
JP2002316183A (ja) * | 2001-04-23 | 2002-10-29 | Nkk Corp | 汚水の処理方法及び装置 |
Also Published As
Publication number | Publication date |
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JP2005246310A (ja) | 2005-09-15 |
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