JP5780953B2 - 膜バイオリアクター混合液を調整する方法 - Google Patents
膜バイオリアクター混合液を調整する方法 Download PDFInfo
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- JP5780953B2 JP5780953B2 JP2011507642A JP2011507642A JP5780953B2 JP 5780953 B2 JP5780953 B2 JP 5780953B2 JP 2011507642 A JP2011507642 A JP 2011507642A JP 2011507642 A JP2011507642 A JP 2011507642A JP 5780953 B2 JP5780953 B2 JP 5780953B2
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- mixture
- nonionic
- polymer
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- polysaccharides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2688—Biological processes
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- 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
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nanotechnology (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Activated Sludge Processes (AREA)
Description
この特許出願の全体にわたって、以下の用語は表示した意味を有する。
ポリガラクツロ酸(polygalacturonic acid:PGA)は、細胞外多糖類に見られる陰イオン性多糖類の一種であるので、実験用に選択した。製品A(実効正電荷を有する両性DMAEA.MCQ(70モル%)−アクリル酸(30モル%)コポリマー)を、PGAにより混合液を調整した後の第2ステップに使用した。現在、MBR設備は、透過流束が高い場合にファウリングが深刻であるため、通常、12〜25LMHで稼働している。したがって、高い透過流束、例えば、36LMHといったより高い透過流束で、より長い期間ファウリングを制御することに、MBR使用者は大きな関心を寄せている。
1)洗浄した膜を含むフロースルーセル槽への混合液の添加(対照および処理、それぞれ7.5L)、
2)様々な濃度のPGAのナトリウム塩(以下、PGAという)の処理槽への添加およびエアレーション(10リットル/分)下での10分間の混合、
3)250ppmの活性製品Aの添加およびエアレーション下での10分間の混合、および、
4)吸引圧力を監視しながら、36LMHでの浸透吸引および10リットル/分の膜エアレーション(活性面積が0.1m2の平板膜)。
図1は、様々な濃度でのPGAを添加し、続いて合成した廃水を使用して動作させた試験的MBRから得られた混合液で、36LMHの透過流速での膜の吸引圧力を条件とした混合液用の製品Aの添加の効果を示す。吸引圧力が高くなるほど、膜ファウリングも高くなる。通常MBR設備は、吸引圧力が7〜8psiに達したあと、膜を洗浄する。図1より、対照の吸引圧力は30分以内に12psiに達するが、24時間後には、吸引圧力は、製品A単独での10psiから、50ppm PGA+250ppm活性製品Aでの8psiまで、および100または200ppm PGA+250ppm活性製品Aでの約3psiまで下がったことがわかる。次の実験を行って、24時間ごとに汚泥交換と処理を行い、200ppm PGA+250ppm活性製品Aを用いて、上記結果の長期間の持続可能性を評価した。図2に示すように、連続添加により、5日間の連続作動後に吸引圧力は最高で3psiまで上昇しただけであった。
Claims (1)
- 一または複数の非イオン性多糖類ならびにアミン、アルコール、グリセリンおよびグリコールを含有する膜バイオリアクター混合液を調整する方法であって、
a.一または複数の非イオン性多糖類ならびにアミン、アルコール、グリセリンおよびグリコールと複合体を形成するまたは会合する能力を有し、その結果、複合化または会合された物質による膜のファウリングを防ぐことができる陰イオン性ポリマーとして、ポリガラクツロ酸を選択するステップと、
b.ステップ(a)から選択されたポリガラクツロ酸を含有する組成物を前記混合液に加えるステップと、
c.ステップ(b)を実施後に、水溶性の両性ポリマーとしてDMAEA.MCQ−アクリル酸コポリマーを、前記混合液に加えるステップと、
を具えることを特徴とする方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/114,438 | 2008-05-02 | ||
US12/114,438 US8889008B2 (en) | 2008-05-02 | 2008-05-02 | Method of conditioning a mixed liquor containing nonionic polysaccharides and/or nonionic organic molecules |
PCT/US2009/042300 WO2009134996A2 (en) | 2008-05-02 | 2009-04-30 | Method of conditioning a mixed liquor containing nonionic polysaccharides and/or nonionic organic molecules |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011520594A JP2011520594A (ja) | 2011-07-21 |
JP2011520594A5 JP2011520594A5 (ja) | 2012-06-14 |
JP5780953B2 true JP5780953B2 (ja) | 2015-09-16 |
Family
ID=41255800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011507642A Active JP5780953B2 (ja) | 2008-05-02 | 2009-04-30 | 膜バイオリアクター混合液を調整する方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US8889008B2 (ja) |
EP (1) | EP2276706A2 (ja) |
JP (1) | JP5780953B2 (ja) |
AR (1) | AR072357A1 (ja) |
AU (1) | AU2009243029B2 (ja) |
BR (1) | BRPI0907674B1 (ja) |
CA (1) | CA2722817C (ja) |
MX (1) | MX2010011904A (ja) |
WO (1) | WO2009134996A2 (ja) |
ZA (1) | ZA201007944B (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2487139A4 (en) * | 2009-10-05 | 2014-07-23 | Asahi Kasei Chemicals Corp | ADDITIVE USED IN A MUD PROCESS ACTIVATED BY MEMBRANE SEPARATION |
US20120255903A1 (en) * | 2009-12-30 | 2012-10-11 | Steven Duwayne Kloos | Non-woven membrane bioreactor and its fouling control method |
WO2011088505A1 (en) * | 2010-01-19 | 2011-07-28 | Flinders University Of South Australia | Low-fouling filtration membranes |
JP2012250180A (ja) * | 2011-06-03 | 2012-12-20 | Sumitomo Electric Ind Ltd | 濾過膜の目詰まり速度の予測方法、及び濾過システム |
US9868660B2 (en) * | 2012-04-17 | 2018-01-16 | Water Solutions, Inc. | Methods and systems for reducing biofouling of microfiltration membranes |
US9771437B2 (en) * | 2014-03-11 | 2017-09-26 | Italmatch Chemicals S.P.A. | Polyelectrolytic polymers, process for their preparation and uses thereof |
WO2018065210A1 (en) * | 2016-10-03 | 2018-04-12 | Unilever N.V. | Water clarification composition containing amphoteric polymer |
WO2018075501A1 (en) | 2016-10-17 | 2018-04-26 | Ecolab USA, Inc. | Methods and compositions for clarifying produced waters for boiler feed waters |
MX2019015216A (es) * | 2017-06-29 | 2020-02-05 | Unilever Nv | Composicion para la purificacion de agua turbia. |
CN111936429A (zh) * | 2018-03-29 | 2020-11-13 | 荷兰联合利华有限公司 | 无金属水澄清组合物 |
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WO1986005771A1 (en) | 1985-04-01 | 1986-10-09 | Mitsui Sekiyu Kagaku Kogyo Kabushiki Kaisha | Method of treating active sludge in waste water |
JPS6391196A (ja) | 1986-10-03 | 1988-04-21 | Mitsui Zosen Eng Kk | 限外濾過膜を用いたし尿処理における脱リン方法 |
JP3004996B2 (ja) | 1989-05-10 | 2000-01-31 | キヤノン株式会社 | 画像処理装置 |
JPH034996A (ja) | 1989-05-31 | 1991-01-10 | Kubota Corp | 高濃度窒素・リン含有廃水処理方法 |
US5248424A (en) * | 1990-08-17 | 1993-09-28 | Zenon Environmental Inc. | Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
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-
2008
- 2008-05-02 US US12/114,438 patent/US8889008B2/en active Active
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2009
- 2009-04-30 AR ARP090101570A patent/AR072357A1/es unknown
- 2009-04-30 MX MX2010011904A patent/MX2010011904A/es active IP Right Grant
- 2009-04-30 BR BRPI0907674-3A patent/BRPI0907674B1/pt active IP Right Grant
- 2009-04-30 JP JP2011507642A patent/JP5780953B2/ja active Active
- 2009-04-30 CA CA2722817A patent/CA2722817C/en active Active
- 2009-04-30 AU AU2009243029A patent/AU2009243029B2/en active Active
- 2009-04-30 EP EP09739798A patent/EP2276706A2/en not_active Ceased
- 2009-04-30 WO PCT/US2009/042300 patent/WO2009134996A2/en active Application Filing
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- 2010-11-05 ZA ZA2010/07944A patent/ZA201007944B/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2009134996A2 (en) | 2009-11-05 |
MX2010011904A (es) | 2011-01-21 |
AU2009243029A1 (en) | 2009-11-05 |
US20090272691A1 (en) | 2009-11-05 |
EP2276706A2 (en) | 2011-01-26 |
ZA201007944B (en) | 2011-07-27 |
US8889008B2 (en) | 2014-11-18 |
CA2722817A1 (en) | 2009-11-05 |
BRPI0907674A2 (pt) | 2016-11-29 |
WO2009134996A3 (en) | 2010-01-21 |
AR072357A1 (es) | 2010-08-25 |
BRPI0907674B1 (pt) | 2024-02-06 |
AU2009243029B2 (en) | 2014-06-12 |
JP2011520594A (ja) | 2011-07-21 |
CA2722817C (en) | 2017-10-17 |
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