JP5965284B2 - 水処理膜の評価方法 - Google Patents
水処理膜の評価方法 Download PDFInfo
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- JP5965284B2 JP5965284B2 JP2012228044A JP2012228044A JP5965284B2 JP 5965284 B2 JP5965284 B2 JP 5965284B2 JP 2012228044 A JP2012228044 A JP 2012228044A JP 2012228044 A JP2012228044 A JP 2012228044A JP 5965284 B2 JP5965284 B2 JP 5965284B2
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Y02A20/131—Reverse-osmosis
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Description
X=exp(−((θm−0.55θb−110)/22.6)2) ・・・(1)
Y=K(0.0366+0.964×exp(−((θm−0.55θb−110)/22.6)2)) ・・・(2)
(上記式(2)において、Sが4.0%未満の場合はKは4.9であり、Sが4.0%以上の場合はKは34である。)
X=exp(−((θm−0.55θb−110)/22.6)2) ・・・(1)
Y=K(0.0366+0.964×exp(−((θm−0.55θb−110)/22.6)2)) ・・・(2)
Claims (2)
- 水処理膜の親疎水性を表す指標Aを求める工程と、
被処理水に含まれる菌体の親疎水性を表す指標Bを求める工程と、
前記指標Aと前記指標Bから、前記水処理膜への前記菌体の付着性を表す指標Xを求める工程とを有する水処理膜の評価方法であって、
前記指標Aとして、前記水処理膜の構成材料から形成されたフィルムの空気接触角θm(°)を用い、
前記指標Bとして、前記菌体の水接触角θb(°)を用い、
下記式(1)に基づき前記指標Xを求めることを特徴とする水処理膜の評価方法。
X=exp(−((θm−0.55θb−110)/22.6)2) ・・・(1) - 水処理膜の親疎水性を表す指標Aを求める工程と、
被処理水に含まれる菌体の親疎水性を表す指標Bを求める工程と、
前記菌体の初期の増殖性能を表す指標Cを求める工程と、
前記指標Aと前記指標Bと前記指標Cから、長期における前記水処理膜への前記菌体の付着量を見積もる工程を有する水処理膜の評価方法であって、
前記指標Aとして、前記水処理膜の構成材料から形成されたフィルムの空気接触角θm(°)を用い、
前記指標Bとして、前記菌体の水接触角θb(°)を用い、
前記指標Cとして、前記菌体を含む溶液中にポリエーテルスルホンフィルムを12時間浸漬した後の前記菌体の前記フィルムの表面占有率S(%)を用い、
下記式(2)に基づき、135時間後の前記水処理膜への前記菌体の付着量Y(μm3/μm2)を求めることを特徴とする水処理膜の評価方法。
Y=K(0.0366+0.964×exp(−((θm−0.55θb−110)/22.6)2)) ・・・(2)
(上記式(2)において、Sが4.0%未満の場合はKは4.9であり、Sが4.0%以上の場合はKは34である。)
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JP2012228044A JP5965284B2 (ja) | 2012-10-15 | 2012-10-15 | 水処理膜の評価方法 |
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JP2012228044A JP5965284B2 (ja) | 2012-10-15 | 2012-10-15 | 水処理膜の評価方法 |
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JP2014079673A JP2014079673A (ja) | 2014-05-08 |
JP5965284B2 true JP5965284B2 (ja) | 2016-08-03 |
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JP2019166449A (ja) * | 2018-03-22 | 2019-10-03 | 積水化学工業株式会社 | 膜モジュールの洗浄方法 |
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JP2005111326A (ja) * | 2003-10-06 | 2005-04-28 | Toray Ind Inc | 液体分離膜およびその使用方法 |
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