Simple and high rate advanced sewage treatment by High-DO DHS reactor using pure oxygen

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06278
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Civil and environmental engineering
• Research Institution: Gifu National College of Technology
• Principal Investigator: SUMINO Haruhiko 岐阜工業高等専門学校, その他部局等, 准教授 (50390456)
• Research Collaborator: KONDA Yukiko (TAKAISHI Yukiko) (株)トーエネック, 技術研究開発部 研究開発グループ 環境技術チーム ; TAKEKOSHI Kunio 岐阜工業高等専門学校, 産学官連携コーディネーター
• Project Period (FY): 2015-10-21 – 2018-03-31
• Keywords: DHSリアクター / 間欠供給運転 / 生物膜

Outline of Final Research Achievements

The intermittent feeding operation of High-DO DHS (Down-flow Hanging Sponge) reactor and DHS reactor couldn't control between aerobic to anaerobic completely. Although, the result of study was expected that a Hi-DHS/DHS reactor of single reactor and simple operation can denitrify, partial nitrify and prevent of biofilm overgrowth. Characteristics of retained sludge in the Hi-DHS/DHS reactor was different between the intermittent feeding operation and the continuous feeding operation, and also was different by organic matter concentration and hydraulics retention time.

Free Research Field

衛生工学、環境工学