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    题名: Innovative upflow anaerobic sludge osmotic membrane bioreactor for wastewater treatment
    作者: Chang, Hau-Ming;Sun, Yung-Chun;Chien, I-Chieh;Chang, Wen-Shing;Ray, Saikat Sinha;Cao, Dan Thanh Ngoc;Duong, Chinh Cong;Chen, Shiao-Shing
    关键词: Upflow anaerobic sludge blanket;Anaerobic osmotic membrane bioreactor;Salinity build-up;Forward osmosis;Phosphorus recovery
    日期: 2019-05-19
    上传时间: 2020-03-10 12:10:25 (UTC+8)
    摘要: A novel upflow anaerobic sludge–forward osmotic membrane bioreactor was developed for simultaneous wastewater treatment, membrane fouling reduction, and nutrient recovery. An upflow anaerobic sludge blanket (UASB) reactor was incorporated into the system, suspending the anaerobic sludge at the bottom of the reactor. A forward osmosis membrane replaced the traditional three-phase separator of the UASB technology. The removals of chemical oxygen demand, PO43−, and NH4+ were all more than 95% with low membrane fouling in this system. Halotolerant Fusibacter, which can ferment organics to acetate, was increased rapidly from 0.1% to 5% in this saline environment. Acetoclastic Methanosaeta was the most dominant prokaryotes and responsible for majority of methane production. Reduction of membrane fouling in this system was verified by the fluorescence excitation-emission matrix spectrophotometry. Furthermore, phosphorus recovery and salinity build-up mitigation were achieved using periodic microfiltration to recover 57–105 mg/L phosphorus from pH 9 to 12.
    關聯: Bioresource Technology 287, 121466
    DOI: 10.1016/j.biortech.2019.121466
    显示于类别:[水資源及環境工程學系暨研究所] 期刊論文

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