厌氧氨氧化菌
废水
生物过程
硝化作用
反硝化
曝气
移动床生物膜反应器
化学
膜反应器
环境工程
环境化学
生物膜
废物管理
制浆造纸工业
氮气
化学工程
膜
环境科学
反硝化细菌
有机化学
工程类
生物
生物化学
细菌
遗传学
作者
Buddhima Siriweera,Muhammad Ahmar Siddiqui,XU Zhao-yu,Guanghao Chen,Di Wu
标识
DOI:10.1016/j.biortech.2023.129212
摘要
Combining multiple bioprocesses in a single membrane-aerated biofilm reactor (MABR) unit for wastewater treatment is an emerging research focus. This study investigated the feasibility of coupling thiosulfate-driven denitrification (TDD) with partial nitrification and anammox (PNA) in a MABR for the treatment of ammonium-containing wastewater. The integrated bioprocess was tested over a continuous operation period (>130 d) in two MABRs: one with a polyvinylidene fluoride membrane (MABR-1), and the other with micro-porous aeration tubes covered with non-wovenpolyester fabrics (MABR-2). After start-up, the MABR-1 and MABR-2 based on the TDD-PNA process achieved satisfactory total nitrogen removal efficiencies of 63% and 76%, with maximum oxygen utilisation efficiencies of up to 66% and 80% and nitrogen removal fluxes of 1.3 and 4.7 gN/(m2·d), respectively. Predictions from the AQUASIM-model verified the integrated bioprocess. These lab scale findings confirmed the applicability of MABR technology for simultaneous sulfur and nitrogen removal, promising for pilot-scale application.
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