Iron-enhanced primary sedimentation and acidogenic sludge fermentation to achieve self-sufficient organic carbon supply for enhanced nutrient removal in wastewater treatment✰

Ruo-hong Li,Xuechao Guo,Bing Li,Lin Lin,Pu Li,Lei Wen,Jiajin Liang,Xiao-yan Li

Resources, Conservation and Recycling（2021）

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摘要

•SBR integrated with CEPS and acidogenic fermentation for enhanced nutrient removal.•Organics in wastewater were reserved and utilized for biological denitrification.•Acidogenic fermentation greatly improved the biodegradability of CEPS sludge.•Self-sufficient carbon supply in side-stream was achieved for nitrogen removal.

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关键词

Chemically enhanced primary sedimentation,Nutrient removal,Denitrification,Acidogenic fermentation,Sequencing batch reactor (SBR),Wastewater treatment

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