Use of photo-driven algal-bacterial aerobic granular sludge system to close carbon cycle in biological nutrients removal and sludge anaerobic digestion units in wastewater treatment plants

Jixiang Wang, Zejiao Li,Qian Wang,Zhongfang Lei,Xiaoyong Qian,Zhenya Zhang,Xiang Liu,Duu-Jong Lee

Chemical Engineering Journal（2023）

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摘要

•Photosynthetic O2 is enough to facilitate both N/P removal by algal-bacterial AGS.•Biogas can be automatically introduced into the closed reactor as needed.•Coexisting microalgae can fix all inorganic C from biological nutrients removal.•Coexisting microalgae can remove all CO2 of biogas from AD of wasted AGS.

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关键词

Photosynthetic oxygen,Carbon emission,Carbon fixation,Biogas upgrading,Simultaneous nitrogen and phosphorus removal

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