日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 A (大気水圏科学) » A-HW 水文・陸水・地下水学・水環境

[A-HW23] 水循環・水環境

2019年5月29日(水) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:町田 功(産業技術総合研究所地質調査総合センター)、山崎 大(東京大学生産技術研究所)、林 武司(秋田大学教育文化学部)、福士 圭介(金沢大学環日本海域環境研究センター)

[AHW23-P22] Studying Operation Parameters on Flat-Plate Membrane Bioreactor for Sewage Treatment

*Jen Hung Chiu1Wen Chin Chen1 (1.Studying Operation Parameters on Flat-Plate Membrane Bioreactor for Sewage Treatment)

キーワード:Membrane Bioreactor, Flat-Plate Membrane, Sewage

The flat-plate membrane bioreactor is applied to the domestic sewage treatment, which has a high quality of effluent than the traditional activated sludge process, and decreasing the susceptible of hair entanglement with the hollow fiber membrane. It has become a priority for recent sewage treatment applications.

A flat-plate membrane bioreactor pilot plant with a reaction volume of 4 m3 was installed in the existing sewage treatment plant. In this research, the parallel treatment of the same influent water quality and hydraulic retention time was carried out to compare the treatment efficiency between the MBR and traditional activated sludge process, and the operational effects of the membrane flux were discussed.

With one year of long-term research, the average removal efficiencies of MBR process, regardless of the COD, SS and E.coli were over 99%, wchih was better than the activated sludge process only 90~95%. Meanwhile, the optimal operation mode of the MBR was obtained in the study. The aeration flow rate in the system was adjusted to 10~13 NL/min per film, the effluent flux was controlled under 50% of the maximum recommended flux of membrane with 9-minute operation and 1 minute stop in a cycle, there is no significant change in operating flux and pressure. These operational mode of MBR can extend the life time of membrane and effectively improve the application of flat-plate MBR to domestic sewage treatment.It is suggested that, in view of water treatment and resource sustainability, the flat plate MBR technology is feasible, and can serve as a green guide to the sewage treatment.