浸漬型膜分離活性汚泥法の省エネ化に向けた基礎的検討

• 冨田 洋平

  JFE エンジニアリング株式会社　総合研究所

書誌事項

タイトル別名

• Preliminary Study for Reduction in Energy Consumption of Submerged Membrane Bioreactor
• シンシガタマク ブンリ カッセイ オデイホウ ノ ショウエネカ ニ ムケタ キソテキ ケントウ

抄録

In conventional Membrane BioReactor (MBR) systems, aeration is needed not only to provide oxygen to activated sludge but also to prevent submerged membranes from fouling. It is essential to reduce the aeration rate in order to develop cost–effective MBR systems because blowers consume a lot of energy. In this study, we present a new cakeremoval strategy toward more cost-effective MBR systems. This strategy is based on the cake–removal by uplifting water flow, which is generated by mixers or pumps. We demonstrated that Trans Membrane Pressure (TMP) did not increase without aeration when the uplifting flow is >0.55 m/s in laboratory scale examinations. Pilot scale experiments where aeration rate was exactly equal to biological Actual Oxygen Required (AOR) were also conducted, TMP jumps have not been observed. To explore feasibility of full–scale plant, fluid dynamics simulations were conducted.

収録刊行物

• 膜

  膜 42 (4), 158-161, 2017

  日本膜学会

キーワード

• membrane bioreactor
• cost–effective MBR systems
• uplifting water flow

詳細情報

• CRID: 1390282681399086848
• NII論文ID: 130005995132
• NII書誌ID: AN0023215X
• DOI: 10.5360/membrane.42.158
• ISSN: 18846440
• ISSN: 03851036
• NDL書誌ID: 028391783
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028391783
• Web Site: https://www.jstage.jst.go.jp/article/membrane/42/4/42_158/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
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